Dobrić, Jelena

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orcid::0000-0003-1001-9154
  • Dobrić, Jelena (73)
  • Dobrić, Jelena (1)
Projects

Author's Bibliography

Design cross-section resistances of perforated columns under compression

Ranisavljević, Maja; Dobrić, Jelena; Filipović, Aljoša; Spremić, Milan

(University of Montenegro, Faculty of Civil Engineering, 2024)

TY  - CONF
AU  - Ranisavljević, Maja
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Spremić, Milan
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3483
AB  - Nowadays, numerous experimentally, numerically and analytically based research have been
performed to evaluate the structural responses and ultimate capacity of beams with web
openings, but mostly under bending. However, in practice, the application of steel cellular
elements dominantly loaded by axial pressure is very common. With the lack of appropriate
design approaches, we rely on engineering judgement, which can result in uneconomic, time-
consuming, or unsafe solutions. To ensure the safety of a structure it is necessary to assess its
structural resilience.
An overview of the existing experimental study on compressed I-section short columns with web
openings, assessment of the impact of openings’ size and shape on cross-section deformation
and resistance capacity under pure compression was performed. To accomplish an adequate and
easy-to-use design method for hot rolled perforated columns, the design procedures stated in: (i)
draft version of new European code prEN 1993-1-13, (ii) the Direct Strength Method (DSM) in
American standard AISI S100-16 and (iii) the Continuous Strength Method (CSM) in prEN
1993-1-4 were evaluated based on experimental data, and the obtained outcomes are briefly
presented in this paper. Although none of these design methods include all aspects of observed
case – hot rolled perforated elements under compression (Eurocode has a strict limit of axial
force, CSM and DSM primarily refer to cold-formed steel sections and do not recognize the
existence of openings at all), they turned out to be quite accurate. The corresponding results were
obtained by modifying those procedures, so they better reflect a case of interest. Thus, DSM
method didn’t need any modifications, and CSM had the most.
PB  - University of Montenegro, Faculty of Civil Engineering
C3  - Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024
T1  - Design cross-section resistances of perforated columns under compression
EP  - 354
SP  - 347
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3483
ER  - 
@conference{
author = "Ranisavljević, Maja and Dobrić, Jelena and Filipović, Aljoša and Spremić, Milan",
year = "2024",
abstract = "Nowadays, numerous experimentally, numerically and analytically based research have been
performed to evaluate the structural responses and ultimate capacity of beams with web
openings, but mostly under bending. However, in practice, the application of steel cellular
elements dominantly loaded by axial pressure is very common. With the lack of appropriate
design approaches, we rely on engineering judgement, which can result in uneconomic, time-
consuming, or unsafe solutions. To ensure the safety of a structure it is necessary to assess its
structural resilience.
An overview of the existing experimental study on compressed I-section short columns with web
openings, assessment of the impact of openings’ size and shape on cross-section deformation
and resistance capacity under pure compression was performed. To accomplish an adequate and
easy-to-use design method for hot rolled perforated columns, the design procedures stated in: (i)
draft version of new European code prEN 1993-1-13, (ii) the Direct Strength Method (DSM) in
American standard AISI S100-16 and (iii) the Continuous Strength Method (CSM) in prEN
1993-1-4 were evaluated based on experimental data, and the obtained outcomes are briefly
presented in this paper. Although none of these design methods include all aspects of observed
case – hot rolled perforated elements under compression (Eurocode has a strict limit of axial
force, CSM and DSM primarily refer to cold-formed steel sections and do not recognize the
existence of openings at all), they turned out to be quite accurate. The corresponding results were
obtained by modifying those procedures, so they better reflect a case of interest. Thus, DSM
method didn’t need any modifications, and CSM had the most.",
publisher = "University of Montenegro, Faculty of Civil Engineering",
journal = "Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024",
title = "Design cross-section resistances of perforated columns under compression",
pages = "354-347",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3483"
}
Ranisavljević, M., Dobrić, J., Filipović, A.,& Spremić, M.. (2024). Design cross-section resistances of perforated columns under compression. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024
University of Montenegro, Faculty of Civil Engineering., 347-354.
https://hdl.handle.net/21.15107/rcub_grafar_3483
Ranisavljević M, Dobrić J, Filipović A, Spremić M. Design cross-section resistances of perforated columns under compression. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024. 2024;:347-354.
https://hdl.handle.net/21.15107/rcub_grafar_3483 .
Ranisavljević, Maja, Dobrić, Jelena, Filipović, Aljoša, Spremić, Milan, "Design cross-section resistances of perforated columns under compression" in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024 (2024):347-354,
https://hdl.handle.net/21.15107/rcub_grafar_3483 .

Structural fire resistance design of the football stadium roof steel structure

Spremić, Milan; Dobrić, Jelena; Jakovljević, Isidora; Dinčić, Nemanja

(University of Montenegro Faculty of Civil Engineering, 2024)

TY  - CONF
AU  - Spremić, Milan
AU  - Dobrić, Jelena
AU  - Jakovljević, Isidora
AU  - Dinčić, Nemanja
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3468
AB  - When analysing the fire resistance of the steel structure of the stadium roof in the event of a fire,
the specific features of the stadium building must be taken into consideration. The stadium stands
are open units of the building that are directly connected to the surrounding area. The clear height
between the stadium roof and the stands is commonly large. However, the clear height between
relatively small parts of the roof, directly above the top of the stands, could be smaller, potentially
making this part of the roof the most vulnerable. On the stands of the stadium, it is prohibited to
bring items that contain combustible material. In addition, the structure of the stadium, benches
or chairs must be made of non-combustible material. Therefore, a fire that could compromise the
steel structure of the stadium roof can only come from the stadium premises on the stands or
under the stands. The fire scenarios on the stadium roof are not described in detail in the literature
compared to indoor (covered) sports arenas. To assess the fire resistance of the roof structure, it
is necessary to check all possible and potentially dangerous scenarios. The subject of the analysis
presented in this paper is the roof steel structure of the stadium in Loznica, Serbia, which was
built in the period 2021–2023. The study considers the following fire scenarios and their effects
on the roof steel structure: (i) a local fire on the stands, and (ii) a fire in the stadium premises
affecting the external members. The fire in stadium premises was analysed using the analytical
expressions provided in Annex B of EN 1991-1-2 and EN 1993-1-2, as well as through CFD
(Computational Fluid Dynamics) analysis of fire propagation. The calculation was performed
for the domains of temperature, time and resistance, depending on the applied fire load analysis.
Results showed that the steel structure of the stadium roof in Loznica meets the load-bearing
codified criteria for the fire effects, with the exception of only one main roof truss. To address
this issue, it was decided to install fire-resistant glass in the TV studio on the building's third
floor to separate this area from the stands and prevent fire effects on the critical main roof truss.
PB  - University of Montenegro Faculty of Civil Engineering
C3  - Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024
T1  - Structural fire resistance design of the football stadium roof steel structure
EP  - 542
SP  - 535
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3468
ER  - 
@conference{
author = "Spremić, Milan and Dobrić, Jelena and Jakovljević, Isidora and Dinčić, Nemanja",
year = "2024",
abstract = "When analysing the fire resistance of the steel structure of the stadium roof in the event of a fire,
the specific features of the stadium building must be taken into consideration. The stadium stands
are open units of the building that are directly connected to the surrounding area. The clear height
between the stadium roof and the stands is commonly large. However, the clear height between
relatively small parts of the roof, directly above the top of the stands, could be smaller, potentially
making this part of the roof the most vulnerable. On the stands of the stadium, it is prohibited to
bring items that contain combustible material. In addition, the structure of the stadium, benches
or chairs must be made of non-combustible material. Therefore, a fire that could compromise the
steel structure of the stadium roof can only come from the stadium premises on the stands or
under the stands. The fire scenarios on the stadium roof are not described in detail in the literature
compared to indoor (covered) sports arenas. To assess the fire resistance of the roof structure, it
is necessary to check all possible and potentially dangerous scenarios. The subject of the analysis
presented in this paper is the roof steel structure of the stadium in Loznica, Serbia, which was
built in the period 2021–2023. The study considers the following fire scenarios and their effects
on the roof steel structure: (i) a local fire on the stands, and (ii) a fire in the stadium premises
affecting the external members. The fire in stadium premises was analysed using the analytical
expressions provided in Annex B of EN 1991-1-2 and EN 1993-1-2, as well as through CFD
(Computational Fluid Dynamics) analysis of fire propagation. The calculation was performed
for the domains of temperature, time and resistance, depending on the applied fire load analysis.
Results showed that the steel structure of the stadium roof in Loznica meets the load-bearing
codified criteria for the fire effects, with the exception of only one main roof truss. To address
this issue, it was decided to install fire-resistant glass in the TV studio on the building's third
floor to separate this area from the stands and prevent fire effects on the critical main roof truss.",
publisher = "University of Montenegro Faculty of Civil Engineering",
journal = "Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024",
title = "Structural fire resistance design of the football stadium roof steel structure",
pages = "542-535",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3468"
}
Spremić, M., Dobrić, J., Jakovljević, I.,& Dinčić, N.. (2024). Structural fire resistance design of the football stadium roof steel structure. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024
University of Montenegro Faculty of Civil Engineering., 535-542.
https://hdl.handle.net/21.15107/rcub_grafar_3468
Spremić M, Dobrić J, Jakovljević I, Dinčić N. Structural fire resistance design of the football stadium roof steel structure. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024. 2024;:535-542.
https://hdl.handle.net/21.15107/rcub_grafar_3468 .
Spremić, Milan, Dobrić, Jelena, Jakovljević, Isidora, Dinčić, Nemanja, "Structural fire resistance design of the football stadium roof steel structure" in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024 (2024):535-542,
https://hdl.handle.net/21.15107/rcub_grafar_3468 .

Experimental responses of compressed I-section short columns with web openings

Ranisavljević, Maja; Dobrić, Jelena

(Novi Sad : Faculty of Technical Sciences, 2023)

TY  - CONF
AU  - Ranisavljević, Maja
AU  - Dobrić, Jelena
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3460
AB  - This paper reports the experimental study on compressed I-section short columns with web openings aimed at providing insight on the specific mechanical behaviour underlying the local buckling of the web panel around the opening. The I-section elements with web openings possess a minute flexural stiffness caused by lack of web contribution to the cross-section deformation capacity. In the case of compresses columns, this structural feature implies the high combined stresses around openings caused by compression force, global bending moment and shear force developed during buckling, and local bending moments due to Vierendeel action. The four stub column tests on IPE300-sections with widely spaced (isolated) and closely spaced circular and square web openings (S275 steel grade) was performed to determine their susceptibility to local buckling. The generated experimental data allowed the quantitative assessment of design procedure stated in draft version of new European code prEN 1993-1-13, revealing its good accuracy.
PB  - Novi Sad : Faculty of Technical Sciences
C3  - Proceedings of The 16th International Scientific Conference of iNDiS, Novi Sad, 16-17th November 2023
T1  - Experimental responses of compressed I-section short columns with web openings
EP  - 79
SP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3460
ER  - 
@conference{
author = "Ranisavljević, Maja and Dobrić, Jelena",
year = "2023",
abstract = "This paper reports the experimental study on compressed I-section short columns with web openings aimed at providing insight on the specific mechanical behaviour underlying the local buckling of the web panel around the opening. The I-section elements with web openings possess a minute flexural stiffness caused by lack of web contribution to the cross-section deformation capacity. In the case of compresses columns, this structural feature implies the high combined stresses around openings caused by compression force, global bending moment and shear force developed during buckling, and local bending moments due to Vierendeel action. The four stub column tests on IPE300-sections with widely spaced (isolated) and closely spaced circular and square web openings (S275 steel grade) was performed to determine their susceptibility to local buckling. The generated experimental data allowed the quantitative assessment of design procedure stated in draft version of new European code prEN 1993-1-13, revealing its good accuracy.",
publisher = "Novi Sad : Faculty of Technical Sciences",
journal = "Proceedings of The 16th International Scientific Conference of iNDiS, Novi Sad, 16-17th November 2023",
title = "Experimental responses of compressed I-section short columns with web openings",
pages = "79-70",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3460"
}
Ranisavljević, M.,& Dobrić, J.. (2023). Experimental responses of compressed I-section short columns with web openings. in Proceedings of The 16th International Scientific Conference of iNDiS, Novi Sad, 16-17th November 2023
Novi Sad : Faculty of Technical Sciences., 70-79.
https://hdl.handle.net/21.15107/rcub_grafar_3460
Ranisavljević M, Dobrić J. Experimental responses of compressed I-section short columns with web openings. in Proceedings of The 16th International Scientific Conference of iNDiS, Novi Sad, 16-17th November 2023. 2023;:70-79.
https://hdl.handle.net/21.15107/rcub_grafar_3460 .
Ranisavljević, Maja, Dobrić, Jelena, "Experimental responses of compressed I-section short columns with web openings" in Proceedings of The 16th International Scientific Conference of iNDiS, Novi Sad, 16-17th November 2023 (2023):70-79,
https://hdl.handle.net/21.15107/rcub_grafar_3460 .

Experimental responses of compressed i-section short columns with web openings

Ranisavljević, Maja; Dobrić, Jelena

(2023)

TY  - CONF
AU  - Ranisavljević, Maja
AU  - Dobrić, Jelena
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3380
AB  - This paper reports the experimental study on compressed I-section short columns with
web openings aimed at providing insight on the specific mechanical behaviour underlying
the local buckling of the web panel around the opening. The I-section elements with web
openings possess a minute flexural stiffness caused by lack of web contribution to the
cross-section deformation capacity. In the case of compresses columns, this structural
feature implies the high combined stresses around openings caused by compression force,
global bending moment and shear force developed during buckling, and local bending
moments due to Vierendeel action. The four stub column tests on IPE300-sections with
widely spaced (isolated) and closely spaced circular and square web openings (S275 steel
grade) was performed to determine their susceptibility to local buckling. The generated
experimental data allowed the quantitative assessment of design procedure stated in draft
version of new European code prEN 1993-1-13, revealing its good accuracy.
C3  - International scientific conference planning, design, construction and building renewal, iNDiS 2023, 16 – 17 November, Fruške Terme, Novi Sad
T1  - Experimental responses of compressed i-section short columns with web openings
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3380
ER  - 
@conference{
author = "Ranisavljević, Maja and Dobrić, Jelena",
year = "2023",
abstract = "This paper reports the experimental study on compressed I-section short columns with
web openings aimed at providing insight on the specific mechanical behaviour underlying
the local buckling of the web panel around the opening. The I-section elements with web
openings possess a minute flexural stiffness caused by lack of web contribution to the
cross-section deformation capacity. In the case of compresses columns, this structural
feature implies the high combined stresses around openings caused by compression force,
global bending moment and shear force developed during buckling, and local bending
moments due to Vierendeel action. The four stub column tests on IPE300-sections with
widely spaced (isolated) and closely spaced circular and square web openings (S275 steel
grade) was performed to determine their susceptibility to local buckling. The generated
experimental data allowed the quantitative assessment of design procedure stated in draft
version of new European code prEN 1993-1-13, revealing its good accuracy.",
journal = "International scientific conference planning, design, construction and building renewal, iNDiS 2023, 16 – 17 November, Fruške Terme, Novi Sad",
title = "Experimental responses of compressed i-section short columns with web openings",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3380"
}
Ranisavljević, M.,& Dobrić, J.. (2023). Experimental responses of compressed i-section short columns with web openings. in International scientific conference planning, design, construction and building renewal, iNDiS 2023, 16 – 17 November, Fruške Terme, Novi Sad.
https://hdl.handle.net/21.15107/rcub_grafar_3380
Ranisavljević M, Dobrić J. Experimental responses of compressed i-section short columns with web openings. in International scientific conference planning, design, construction and building renewal, iNDiS 2023, 16 – 17 November, Fruške Terme, Novi Sad. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3380 .
Ranisavljević, Maja, Dobrić, Jelena, "Experimental responses of compressed i-section short columns with web openings" in International scientific conference planning, design, construction and building renewal, iNDiS 2023, 16 – 17 November, Fruške Terme, Novi Sad (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3380 .

Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles

Dobrić, Jelena; Gluhović, Nina; Ivanović, Jovana; Rossi, Barbara

(Elsevier, 2023)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Gluhović, Nina
AU  - Ivanović, Jovana
AU  - Rossi, Barbara
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3257
AB  - In this paper, the structural behaviour of cold-formed stainless steel (CFSS) built-up T- and cruciform-section columns is studied experimentally and numerically, and the effect of discrete fasteners on their flexural and torsional rigidity is considered. To build the singly symmetrical built-up T-section columns, two equal-leg angle sections made of lean-duplex grade EN 1.4162 were assembled back-to-back. The doubly symmetrical built-up cruciform-section columns were composed of four star-oriented equal-leg angle sections made of austenitic grade EN 1.4301. They were connected using M8 bolts of class 8.8. Two pin-ended built-up T-section columns with length of 1000 mm, and four built-up cruciform-section columns with lengths of 600 mm and 2400 mm with semi-rigid support conditions, were tested under pure axial compression. As observed in the tests, built-up T-section columns experienced flexural-torsional buckling failure, whereas built-up cruciform-section columns failed in torsional buckling mode. Finite element models were validated against the conducted experiments and used to perform a parametric study of the structural behaviour of CFSS built-up T- and cruciform-section columns. The study included the column length, cross-sectional dimensions and bolt spacing as variables. The experimental and numerical data, i.e., the column strengths and failure modes, were compared against the results obtained based on the European and North American Specifications alongside a recent method established for cold-formed carbon steel equivalents and based on the Direct Strength Method (DSM). It is shown that the DSM-based approach predicts the ultimate buckling resistances of the considered built-up columns more accurately than the available codified design methods.
PB  - Elsevier
T2  - Journal of Constructional Steel Research
T1  - Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles
VL  - 212
DO  - 10.1016/j.jcsr.2023.108263
ER  - 
@article{
author = "Dobrić, Jelena and Gluhović, Nina and Ivanović, Jovana and Rossi, Barbara",
year = "2023",
abstract = "In this paper, the structural behaviour of cold-formed stainless steel (CFSS) built-up T- and cruciform-section columns is studied experimentally and numerically, and the effect of discrete fasteners on their flexural and torsional rigidity is considered. To build the singly symmetrical built-up T-section columns, two equal-leg angle sections made of lean-duplex grade EN 1.4162 were assembled back-to-back. The doubly symmetrical built-up cruciform-section columns were composed of four star-oriented equal-leg angle sections made of austenitic grade EN 1.4301. They were connected using M8 bolts of class 8.8. Two pin-ended built-up T-section columns with length of 1000 mm, and four built-up cruciform-section columns with lengths of 600 mm and 2400 mm with semi-rigid support conditions, were tested under pure axial compression. As observed in the tests, built-up T-section columns experienced flexural-torsional buckling failure, whereas built-up cruciform-section columns failed in torsional buckling mode. Finite element models were validated against the conducted experiments and used to perform a parametric study of the structural behaviour of CFSS built-up T- and cruciform-section columns. The study included the column length, cross-sectional dimensions and bolt spacing as variables. The experimental and numerical data, i.e., the column strengths and failure modes, were compared against the results obtained based on the European and North American Specifications alongside a recent method established for cold-formed carbon steel equivalents and based on the Direct Strength Method (DSM). It is shown that the DSM-based approach predicts the ultimate buckling resistances of the considered built-up columns more accurately than the available codified design methods.",
publisher = "Elsevier",
journal = "Journal of Constructional Steel Research",
title = "Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles",
volume = "212",
doi = "10.1016/j.jcsr.2023.108263"
}
Dobrić, J., Gluhović, N., Ivanović, J.,& Rossi, B.. (2023). Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles. in Journal of Constructional Steel Research
Elsevier., 212.
https://doi.org/10.1016/j.jcsr.2023.108263
Dobrić J, Gluhović N, Ivanović J, Rossi B. Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles. in Journal of Constructional Steel Research. 2023;212.
doi:10.1016/j.jcsr.2023.108263 .
Dobrić, Jelena, Gluhović, Nina, Ivanović, Jovana, Rossi, Barbara, "Design procedures for cold-formed stainless steel built-up columns assembled from equal-leg angles" in Journal of Constructional Steel Research, 212 (2023),
https://doi.org/10.1016/j.jcsr.2023.108263 . .
2

Numerical characterization of innovative demountable beam-column connections using long bolts

Janković, Neda; Dobrić, Jelena; Gluhović, Nina; Conde, Jorge; Ljubinković, Filip; da Silva, Luís Simões

(2023)

TY  - CONF
AU  - Janković, Neda
AU  - Dobrić, Jelena
AU  - Gluhović, Nina
AU  - Conde, Jorge
AU  - Ljubinković, Filip
AU  - da Silva, Luís Simões
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3378
AB  - Circular design strategies such as adaptivity, detachability, and reusability represent
new challenges and increased demands on the future-proof buildings sector. To contribute to
the circularity and sustainability of the steel construction sector, an innovative solution of beamcolumn
moment-resisting joints with long bolts and short steel elements (links) is proposed,
enabling an extension in the service length of existing steel members. This paper assesses the
influencing connection parameters (e.g. bolt preload, bolt length and diameter, end plate thickness,
etc.) on the moment (flexural) resistance, stiffness, rotation, ductility, and failure modes
of base configurations of these joints.
C3  - Proceedings in Civil Engineering, XIV CONGRESSO DE CONSTRUÇÃO METÁLICA E MISTA, Convento São Francisco, Coimbra – Portugal, 23-24 November, 2023
T1  - Numerical characterization of innovative demountable beam-column connections using long bolts
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3378
ER  - 
@conference{
author = "Janković, Neda and Dobrić, Jelena and Gluhović, Nina and Conde, Jorge and Ljubinković, Filip and da Silva, Luís Simões",
year = "2023",
abstract = "Circular design strategies such as adaptivity, detachability, and reusability represent
new challenges and increased demands on the future-proof buildings sector. To contribute to
the circularity and sustainability of the steel construction sector, an innovative solution of beamcolumn
moment-resisting joints with long bolts and short steel elements (links) is proposed,
enabling an extension in the service length of existing steel members. This paper assesses the
influencing connection parameters (e.g. bolt preload, bolt length and diameter, end plate thickness,
etc.) on the moment (flexural) resistance, stiffness, rotation, ductility, and failure modes
of base configurations of these joints.",
journal = "Proceedings in Civil Engineering, XIV CONGRESSO DE CONSTRUÇÃO METÁLICA E MISTA, Convento São Francisco, Coimbra – Portugal, 23-24 November, 2023",
title = "Numerical characterization of innovative demountable beam-column connections using long bolts",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3378"
}
Janković, N., Dobrić, J., Gluhović, N., Conde, J., Ljubinković, F.,& da Silva, L. S.. (2023). Numerical characterization of innovative demountable beam-column connections using long bolts. in Proceedings in Civil Engineering, XIV CONGRESSO DE CONSTRUÇÃO METÁLICA E MISTA, Convento São Francisco, Coimbra – Portugal, 23-24 November, 2023.
https://hdl.handle.net/21.15107/rcub_grafar_3378
Janković N, Dobrić J, Gluhović N, Conde J, Ljubinković F, da Silva LS. Numerical characterization of innovative demountable beam-column connections using long bolts. in Proceedings in Civil Engineering, XIV CONGRESSO DE CONSTRUÇÃO METÁLICA E MISTA, Convento São Francisco, Coimbra – Portugal, 23-24 November, 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3378 .
Janković, Neda, Dobrić, Jelena, Gluhović, Nina, Conde, Jorge, Ljubinković, Filip, da Silva, Luís Simões, "Numerical characterization of innovative demountable beam-column connections using long bolts" in Proceedings in Civil Engineering, XIV CONGRESSO DE CONSTRUÇÃO METÁLICA E MISTA, Convento São Francisco, Coimbra – Portugal, 23-24 November, 2023 (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3378 .

Experimental investigation of influence parameters on cartridge fired pin resistance

Gluhović, Nina; Dobrić, Jelena; Spremić, Milan; Marković, Zlatko

(Ernst & Sohn GmbH, 2023)

TY  - CONF
AU  - Gluhović, Nina
AU  - Dobrić, Jelena
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3219
AB  - Cartridge fired pins, also known as powder actuated fasteners, have a wide application in different construction industry fields, mostly for joints of cold-formed structural elements and profiled steel sheeting, or for installation of shear connectors in composite steel-concrete structures. Installation of cartridge fired pins is mostly governed by high energy introduction from installation device and mechanical fastener to the steel base material, without initial predrilling of holes. Therefore, large plastic deformations of base material are developed through installation procedure, together with various anchorage mechanisms between fastener and base material. This paper presents experimental investigation of most important influence parameters on behaviour and resistance of cartridge fired pins, such as adjusted installation power level on installation device and steel base material strength. Experimental investigation involved X-ENP-21 HVB cartridge fired pins through double-sided shear tests, tension tests with fasteners installed over X-HVB shear connector with two different steel grades (S275 and S355) and two installation power levels (2 and 3.5), and tension tests with fasteners installed over two thicknesses of pro-filed steel sheeting (0.8 mm and 1.0 mm). Cartridge fired pin resistances together with corresponding failure mechanisms were experimentally quantified and presented in this paper.
PB  - Ernst & Sohn GmbH
C3  - ce/papers
T1  - Experimental investigation of influence parameters on cartridge fired pin resistance
EP  - 1398
IS  - 3-4
SP  - 1393
VL  - 6
DO  - 10.1002/cepa.2256
ER  - 
@conference{
author = "Gluhović, Nina and Dobrić, Jelena and Spremić, Milan and Marković, Zlatko",
year = "2023",
abstract = "Cartridge fired pins, also known as powder actuated fasteners, have a wide application in different construction industry fields, mostly for joints of cold-formed structural elements and profiled steel sheeting, or for installation of shear connectors in composite steel-concrete structures. Installation of cartridge fired pins is mostly governed by high energy introduction from installation device and mechanical fastener to the steel base material, without initial predrilling of holes. Therefore, large plastic deformations of base material are developed through installation procedure, together with various anchorage mechanisms between fastener and base material. This paper presents experimental investigation of most important influence parameters on behaviour and resistance of cartridge fired pins, such as adjusted installation power level on installation device and steel base material strength. Experimental investigation involved X-ENP-21 HVB cartridge fired pins through double-sided shear tests, tension tests with fasteners installed over X-HVB shear connector with two different steel grades (S275 and S355) and two installation power levels (2 and 3.5), and tension tests with fasteners installed over two thicknesses of pro-filed steel sheeting (0.8 mm and 1.0 mm). Cartridge fired pin resistances together with corresponding failure mechanisms were experimentally quantified and presented in this paper.",
publisher = "Ernst & Sohn GmbH",
journal = "ce/papers",
title = "Experimental investigation of influence parameters on cartridge fired pin resistance",
pages = "1398-1393",
number = "3-4",
volume = "6",
doi = "10.1002/cepa.2256"
}
Gluhović, N., Dobrić, J., Spremić, M.,& Marković, Z.. (2023). Experimental investigation of influence parameters on cartridge fired pin resistance. in ce/papers
Ernst & Sohn GmbH., 6(3-4), 1393-1398.
https://doi.org/10.1002/cepa.2256
Gluhović N, Dobrić J, Spremić M, Marković Z. Experimental investigation of influence parameters on cartridge fired pin resistance. in ce/papers. 2023;6(3-4):1393-1398.
doi:10.1002/cepa.2256 .
Gluhović, Nina, Dobrić, Jelena, Spremić, Milan, Marković, Zlatko, "Experimental investigation of influence parameters on cartridge fired pin resistance" in ce/papers, 6, no. 3-4 (2023):1393-1398,
https://doi.org/10.1002/cepa.2256 . .

Stability criteria for stainless steel equal-leg angle columns

Dobrić, Jelena

(2022)

TY  - CONF
AU  - Dobrić, Jelena
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3379
AB  - Nowadays, the explicit codified criteria for design of centrically compressed stainless steel columns with equal-leg angle sections are absent in Europe. A comprehensive scientific investigation has therefore been undertaken at the University of Belgrade Faculty of Civil Engineering to provide benchmark data for the accuracy assessment of existing column design procedures stated in the European structural steel codes and to propose the new design criteria for stainless steel equal-leg angle columns. A series of experiments followed by advanced and realistic nonlinear finite element studies were performed on pin-ended columns with different lengths to account for both elastic and inelastic failure characteristics including minor-axis flexural and flexural-torsional buckling modes. The systematic experimental programme involved tensile material tests, geometric imperfection measurements, residual stress measurements and in total 63 column compression tests, considering two stainless steel alloys, lean duplex grade EN 1.4162 and austenitic grade EN 1.4301. Three different production routes, including cold-formed, hot-rolled and laser-welded angles were studied to quantify the effects of pronounced material nonlinearity and initial structural imperfections — residual stresses and geometric out-of-straightness on their buckling regimes and ultimate capacities. The behaviours and compressive capacities of the studied columns was confirmed to be dependent on not only the column slenderness, but also the elastic torsional-flexural buckling load-to-the elastic minor-axis flexural buckling load ratio. Similar to the previous research, it was demonstrated that in equal-leg angle columns, torsional and local buckling are essentially two designations of the same phenomenon. The research gathered a large column ultimate strength data bank that includes experimental values, also collected from the literature, and numerical values. The merits and accuracy of the proposed design criteria were assessed through the statistical data estimation and the reliability analysis to evaluate the safety factors and compare with the currently recommended by European stainless steel structural code.
C3  - Proceedings in Civil Engineering, THE 8th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING – SCIENCE AND PRACTICE" GNP 2022  –  Kolašin, Montenegro, 8-12 March 2022
T1  - Stability criteria for stainless steel equal-leg angle columns
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3379
ER  - 
@conference{
author = "Dobrić, Jelena",
year = "2022",
abstract = "Nowadays, the explicit codified criteria for design of centrically compressed stainless steel columns with equal-leg angle sections are absent in Europe. A comprehensive scientific investigation has therefore been undertaken at the University of Belgrade Faculty of Civil Engineering to provide benchmark data for the accuracy assessment of existing column design procedures stated in the European structural steel codes and to propose the new design criteria for stainless steel equal-leg angle columns. A series of experiments followed by advanced and realistic nonlinear finite element studies were performed on pin-ended columns with different lengths to account for both elastic and inelastic failure characteristics including minor-axis flexural and flexural-torsional buckling modes. The systematic experimental programme involved tensile material tests, geometric imperfection measurements, residual stress measurements and in total 63 column compression tests, considering two stainless steel alloys, lean duplex grade EN 1.4162 and austenitic grade EN 1.4301. Three different production routes, including cold-formed, hot-rolled and laser-welded angles were studied to quantify the effects of pronounced material nonlinearity and initial structural imperfections — residual stresses and geometric out-of-straightness on their buckling regimes and ultimate capacities. The behaviours and compressive capacities of the studied columns was confirmed to be dependent on not only the column slenderness, but also the elastic torsional-flexural buckling load-to-the elastic minor-axis flexural buckling load ratio. Similar to the previous research, it was demonstrated that in equal-leg angle columns, torsional and local buckling are essentially two designations of the same phenomenon. The research gathered a large column ultimate strength data bank that includes experimental values, also collected from the literature, and numerical values. The merits and accuracy of the proposed design criteria were assessed through the statistical data estimation and the reliability analysis to evaluate the safety factors and compare with the currently recommended by European stainless steel structural code.",
journal = "Proceedings in Civil Engineering, THE 8th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING – SCIENCE AND PRACTICE" GNP 2022  –  Kolašin, Montenegro, 8-12 March 2022",
title = "Stability criteria for stainless steel equal-leg angle columns",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3379"
}
Dobrić, J.. (2022). Stability criteria for stainless steel equal-leg angle columns. in Proceedings in Civil Engineering, THE 8th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING – SCIENCE AND PRACTICE" GNP 2022  –  Kolašin, Montenegro, 8-12 March 2022.
https://hdl.handle.net/21.15107/rcub_grafar_3379
Dobrić J. Stability criteria for stainless steel equal-leg angle columns. in Proceedings in Civil Engineering, THE 8th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING – SCIENCE AND PRACTICE" GNP 2022  –  Kolašin, Montenegro, 8-12 March 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3379 .
Dobrić, Jelena, "Stability criteria for stainless steel equal-leg angle columns" in Proceedings in Civil Engineering, THE 8th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING – SCIENCE AND PRACTICE" GNP 2022  –  Kolašin, Montenegro, 8-12 March 2022 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3379 .

A new design approach for stainless steel angle — accuracy assesment based on numerical data

Nackov, Ivan; Filipović, Aljoša; Dobrić, Jelena

(Univerzitet u Beogradu Građevinski fakultet, 2022)

TY  - CONF
AU  - Nackov, Ivan
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2970
AB  - The angle columns exhibit complex structural behaviour that arises from specific geometry features - the angle-section is characterised by low torsional stiffness and lack of primary warping esistance, 
leading to high sensitivity to buckling phenomena involving torsion. Numerous scientific studies have shown that the current European codes for steel structure are conservative with a high data scatter in cases of angle columns failing in flexural–torsional buckling. A novel design procedure has been developed  at  Imperial  College  in  London,  capturing  the  transition  influence  in  post-buckling behaviour and the interactive effects between the flexural–torsional and minor-axis flexural buckling modes. This paper provides an accuracy assessment of this procedure. The comparison between the numerical data and their design estimates shows a good correlation, indicating improved accuracy and consistency in resistance predictions compared to the existing codified design rules.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - International Congress Proceedings / Association of   Structural Engineers of Serbia, 16. Congress, 28 - 30. 09. 2022
T1  - A new design approach for stainless steel angle — accuracy assesment based on numerical data
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2970
ER  - 
@conference{
author = "Nackov, Ivan and Filipović, Aljoša and Dobrić, Jelena",
year = "2022",
abstract = "The angle columns exhibit complex structural behaviour that arises from specific geometry features - the angle-section is characterised by low torsional stiffness and lack of primary warping esistance, 
leading to high sensitivity to buckling phenomena involving torsion. Numerous scientific studies have shown that the current European codes for steel structure are conservative with a high data scatter in cases of angle columns failing in flexural–torsional buckling. A novel design procedure has been developed  at  Imperial  College  in  London,  capturing  the  transition  influence  in  post-buckling behaviour and the interactive effects between the flexural–torsional and minor-axis flexural buckling modes. This paper provides an accuracy assessment of this procedure. The comparison between the numerical data and their design estimates shows a good correlation, indicating improved accuracy and consistency in resistance predictions compared to the existing codified design rules.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "International Congress Proceedings / Association of   Structural Engineers of Serbia, 16. Congress, 28 - 30. 09. 2022",
title = "A new design approach for stainless steel angle — accuracy assesment based on numerical data",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2970"
}
Nackov, I., Filipović, A.,& Dobrić, J.. (2022). A new design approach for stainless steel angle — accuracy assesment based on numerical data. in International Congress Proceedings / Association of   Structural Engineers of Serbia, 16. Congress, 28 - 30. 09. 2022
Univerzitet u Beogradu Građevinski fakultet..
https://hdl.handle.net/21.15107/rcub_grafar_2970
Nackov I, Filipović A, Dobrić J. A new design approach for stainless steel angle — accuracy assesment based on numerical data. in International Congress Proceedings / Association of   Structural Engineers of Serbia, 16. Congress, 28 - 30. 09. 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2970 .
Nackov, Ivan, Filipović, Aljoša, Dobrić, Jelena, "A new design approach for stainless steel angle — accuracy assesment based on numerical data" in International Congress Proceedings / Association of   Structural Engineers of Serbia, 16. Congress, 28 - 30. 09. 2022 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2970 .

Fire load for performance fire design of car park steel structure

Spremić, Milan; Dinčić, Nemanja; Jakovljević, Isidora; Gluhović, Nina; Dobrić, Jelena

(University of Montenegro, Faculty of Civil Engineering, 2022)

TY  - CONF
AU  - Spremić, Milan
AU  - Dinčić, Nemanja
AU  - Jakovljević, Isidora
AU  - Gluhović, Nina
AU  - Dobrić, Jelena
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3199
AB  - Three advanced fire models for structural design are defined in Eurocode: one-zone model, two-zone model and model based on Computational Fluid Dynamics (CFD). This paper describes the effects on structures exposed to fire, based on the CFD model. The advanced computational fluid dynamics model was used to define the thermal action and temperature of the structural steel elements on the analysed case study object, open multi-storey car park Obilićev Venac in Belgrade. The support structure of the car park is a typical composite floor structure with steel columns. Distance between the columns and the floor beams corresponds to the dimension of one parking slot. The maximum temperature values of steel structural elements that occur during a fire are investigated. Based on the results of the tests available in the literature, CFD fire load models were created. Two different fire loads are used in numerical simulations. The first one is the fire load model based on combustible materials, which simulate the typical modern small car weighing up to one tonne. In the second case, the fire loads model was described with the Heat Release Rate (HRR) curve. Two of the referenced HRR curves defined by the French CTICM and Netherlands TNO Institute are used in CFD models. The discussion in this paper is limited to fire cases with one burning car. The parametric study considered the dimensions and positions of the burner element in the model. The effects of the natural ventilation in the open car park during the fire were also investigated. 
The presented results are from the Research project “Advanced structures design – fire safety guideline for V4” funded by the Višegrad fund. A joint effort of colleagues from Hungary, Czech Republic, Slovakia, Poland and Serbia, produced the project report, which described five different case studies.
PB  - University of Montenegro, Faculty of Civil Engineering
C3  - GNP 2022 Proceedings, The Eighth International Conference Civil Engineering Science & Practice, Kolašin, 8-12th March 2022
T1  - Fire load for performance fire design of car park steel structure
EP  - 380
SP  - 373
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3199
ER  - 
@conference{
author = "Spremić, Milan and Dinčić, Nemanja and Jakovljević, Isidora and Gluhović, Nina and Dobrić, Jelena",
year = "2022",
abstract = "Three advanced fire models for structural design are defined in Eurocode: one-zone model, two-zone model and model based on Computational Fluid Dynamics (CFD). This paper describes the effects on structures exposed to fire, based on the CFD model. The advanced computational fluid dynamics model was used to define the thermal action and temperature of the structural steel elements on the analysed case study object, open multi-storey car park Obilićev Venac in Belgrade. The support structure of the car park is a typical composite floor structure with steel columns. Distance between the columns and the floor beams corresponds to the dimension of one parking slot. The maximum temperature values of steel structural elements that occur during a fire are investigated. Based on the results of the tests available in the literature, CFD fire load models were created. Two different fire loads are used in numerical simulations. The first one is the fire load model based on combustible materials, which simulate the typical modern small car weighing up to one tonne. In the second case, the fire loads model was described with the Heat Release Rate (HRR) curve. Two of the referenced HRR curves defined by the French CTICM and Netherlands TNO Institute are used in CFD models. The discussion in this paper is limited to fire cases with one burning car. The parametric study considered the dimensions and positions of the burner element in the model. The effects of the natural ventilation in the open car park during the fire were also investigated. 
The presented results are from the Research project “Advanced structures design – fire safety guideline for V4” funded by the Višegrad fund. A joint effort of colleagues from Hungary, Czech Republic, Slovakia, Poland and Serbia, produced the project report, which described five different case studies.",
publisher = "University of Montenegro, Faculty of Civil Engineering",
journal = "GNP 2022 Proceedings, The Eighth International Conference Civil Engineering Science & Practice, Kolašin, 8-12th March 2022",
title = "Fire load for performance fire design of car park steel structure",
pages = "380-373",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3199"
}
Spremić, M., Dinčić, N., Jakovljević, I., Gluhović, N.,& Dobrić, J.. (2022). Fire load for performance fire design of car park steel structure. in GNP 2022 Proceedings, The Eighth International Conference Civil Engineering Science & Practice, Kolašin, 8-12th March 2022
University of Montenegro, Faculty of Civil Engineering., 373-380.
https://hdl.handle.net/21.15107/rcub_grafar_3199
Spremić M, Dinčić N, Jakovljević I, Gluhović N, Dobrić J. Fire load for performance fire design of car park steel structure. in GNP 2022 Proceedings, The Eighth International Conference Civil Engineering Science & Practice, Kolašin, 8-12th March 2022. 2022;:373-380.
https://hdl.handle.net/21.15107/rcub_grafar_3199 .
Spremić, Milan, Dinčić, Nemanja, Jakovljević, Isidora, Gluhović, Nina, Dobrić, Jelena, "Fire load for performance fire design of car park steel structure" in GNP 2022 Proceedings, The Eighth International Conference Civil Engineering Science & Practice, Kolašin, 8-12th March 2022 (2022):373-380,
https://hdl.handle.net/21.15107/rcub_grafar_3199 .

Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A

Milosavljević, Branko; Dobrić, Jelena

(Univerzitet u Beogradu Građevinski fakultet, 2022)

TY  - CONF
AU  - Milosavljević, Branko
AU  - Dobrić, Jelena
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2937
AB  - Postrojenje odsumporavanja dimnih gasova u Termoelektrani Nikola Tesla A (TENT A) u Srbiji,
predstavlja jedan od najznačajnijih projekata u domenu zaštite životne sredine na Balkanu,
namenjen stabilizaciji koncentracije gasova sa efektom staklene bašte i prevenciji negativnih
antropogenih uticaja na klimatski sistem. Građevinski fakultet Univerziteta u Beogradu
učestvovao je u izradi projektne dokumentacije ključnih objekata postrojenja odsumporavanja u
TENT A. U ovom radu prikazano je projektno rešenje i opisane konstrukcijske specifičnosti
noseće hibridne konstrukcije Silosa gipsa namenjen dopremi i skladištenju krečnjaka.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 16. kongres, 28-30. septembar 2022, Aranđelovac
T1  - Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A
EP  - 303
SP  - 296
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2937
ER  - 
@conference{
author = "Milosavljević, Branko and Dobrić, Jelena",
year = "2022",
abstract = "Postrojenje odsumporavanja dimnih gasova u Termoelektrani Nikola Tesla A (TENT A) u Srbiji,
predstavlja jedan od najznačajnijih projekata u domenu zaštite životne sredine na Balkanu,
namenjen stabilizaciji koncentracije gasova sa efektom staklene bašte i prevenciji negativnih
antropogenih uticaja na klimatski sistem. Građevinski fakultet Univerziteta u Beogradu
učestvovao je u izradi projektne dokumentacije ključnih objekata postrojenja odsumporavanja u
TENT A. U ovom radu prikazano je projektno rešenje i opisane konstrukcijske specifičnosti
noseće hibridne konstrukcije Silosa gipsa namenjen dopremi i skladištenju krečnjaka.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 16. kongres, 28-30. septembar 2022, Aranđelovac",
title = "Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A",
pages = "303-296",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2937"
}
Milosavljević, B.,& Dobrić, J.. (2022). Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A. in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 16. kongres, 28-30. septembar 2022, Aranđelovac
Univerzitet u Beogradu Građevinski fakultet., 296-303.
https://hdl.handle.net/21.15107/rcub_grafar_2937
Milosavljević B, Dobrić J. Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A. in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 16. kongres, 28-30. septembar 2022, Aranđelovac. 2022;:296-303.
https://hdl.handle.net/21.15107/rcub_grafar_2937 .
Milosavljević, Branko, Dobrić, Jelena, "Projekat silosa gipsa u postrojenju za odsumporavanje dimnih gasova u termoelektrani Nikola Tesla A" in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 16. kongres, 28-30. septembar 2022, Aranđelovac (2022):296-303,
https://hdl.handle.net/21.15107/rcub_grafar_2937 .

Stability design criteria for closely spaced built-up stainless steel columns

Dobrić, Jelena; Gluhović, Nina; Marković, Zlatko; Buđevac, Dragan

(Society for Materials and Structures Testing of Serbia, 2021)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Gluhović, Nina
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2623
AB  - This paper aims to develop design recommendations for closely spaced built-up stainless steel columns, based on findings gained in performed research at the University of Belgrade. The research focuses on pin-ended built-up columns formed from two press-braked channel chords oriented back-to-back and addresses their flexural buckling capacity about the minor axis. The impact of overall and local chord slenderness, interconnection stiffness, geometric imperfections and material nonlinearity is evaluated. In order to fully exploit their structural performance, two
separate approaches for the design of built-up columns with welded or bolted interconnections are defined that include different formulas for shear stiffness.
PB  - Society for Materials and Structures Testing of Serbia
PB  - University of Belgrade Faculty of Civil Engineering
PB  - Association of Structural Engineers of Serbia
T2  - Građevinski materijali i konstrukcije Building Materials and Structures
T1  - Stability design criteria for closely spaced built-up stainless steel columns
VL  - 64
DO  - 10.5937/GRMK2104235D
ER  - 
@article{
author = "Dobrić, Jelena and Gluhović, Nina and Marković, Zlatko and Buđevac, Dragan",
year = "2021",
abstract = "This paper aims to develop design recommendations for closely spaced built-up stainless steel columns, based on findings gained in performed research at the University of Belgrade. The research focuses on pin-ended built-up columns formed from two press-braked channel chords oriented back-to-back and addresses their flexural buckling capacity about the minor axis. The impact of overall and local chord slenderness, interconnection stiffness, geometric imperfections and material nonlinearity is evaluated. In order to fully exploit their structural performance, two
separate approaches for the design of built-up columns with welded or bolted interconnections are defined that include different formulas for shear stiffness.",
publisher = "Society for Materials and Structures Testing of Serbia, University of Belgrade Faculty of Civil Engineering, Association of Structural Engineers of Serbia",
journal = "Građevinski materijali i konstrukcije Building Materials and Structures",
title = "Stability design criteria for closely spaced built-up stainless steel columns",
volume = "64",
doi = "10.5937/GRMK2104235D"
}
Dobrić, J., Gluhović, N., Marković, Z.,& Buđevac, D.. (2021). Stability design criteria for closely spaced built-up stainless steel columns. in Građevinski materijali i konstrukcije Building Materials and Structures
Society for Materials and Structures Testing of Serbia., 64.
https://doi.org/10.5937/GRMK2104235D
Dobrić J, Gluhović N, Marković Z, Buđevac D. Stability design criteria for closely spaced built-up stainless steel columns. in Građevinski materijali i konstrukcije Building Materials and Structures. 2021;64.
doi:10.5937/GRMK2104235D .
Dobrić, Jelena, Gluhović, Nina, Marković, Zlatko, Buđevac, Dragan, "Stability design criteria for closely spaced built-up stainless steel columns" in Građevinski materijali i konstrukcije Building Materials and Structures, 64 (2021),
https://doi.org/10.5937/GRMK2104235D . .
1

Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns

Filipović, Aljoša; Dobrić, Jelena; Marković, Zlatko; Baddoo, Nancy

(Ernst&Sohn, 2021)

TY  - CONF
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
AU  - Marković, Zlatko
AU  - Baddoo, Nancy
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2610
AB  - Stainless  steel  sections  are  used  for  structures  in  aggressive  environments  where  the  greater material cost can often be justified in return for longer maintenance-free periods, for example in the water treatment, nuclear, petrochemical and food and beverage sectors. This paper presents a  comparative  imperfection  sensitivity  study  of  hot-rolled  and  laser-welded  pin-ended  equal angle  columns  made  of  austenitic  stainless  steel  grade  1.4301.  Although  the  initial  geometric imperfections  in  these  structural  elements  are  similar,  there  is  a  difference  in  the  initial  stress state  due  to  the  different  manufacturing  processes.  The  study  includes  three-dimensional  geometric imperfection measurements conducted by a laser scanner, and, in parallel residual stress measurements  performed  by  the  sectioning  method  using  water  jet  cutting.  The  overall  bow, camber,  and  twist  imperfections  are  determined  from  the  scanned  specimens.  In  addition,  the shapes of the residual stress patterns through the thickness of the angle leg are shown. Based on the findings related to imperfection distributions and amplitudes, a FE analysis is performed both on hot-rolled and laser-welded angles to study the influence of the variability of initial imperfections  on  compression  resistance.  The  separate  and  combined  effects  of  the  measured  residual stresses  and  initial  out-of-straightness  are  considered  and  the  reduction  in  the  buckling  resistances of initially straight angle columns is determined. The structural responses of hot-rolled and laser-welded columns are compared and discussed.
PB  - Ernst&Sohn
C3  - CE/Papers
T1  - Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2610
ER  - 
@conference{
author = "Filipović, Aljoša and Dobrić, Jelena and Marković, Zlatko and Baddoo, Nancy",
year = "2021",
abstract = "Stainless  steel  sections  are  used  for  structures  in  aggressive  environments  where  the  greater material cost can often be justified in return for longer maintenance-free periods, for example in the water treatment, nuclear, petrochemical and food and beverage sectors. This paper presents a  comparative  imperfection  sensitivity  study  of  hot-rolled  and  laser-welded  pin-ended  equal angle  columns  made  of  austenitic  stainless  steel  grade  1.4301.  Although  the  initial  geometric imperfections  in  these  structural  elements  are  similar,  there  is  a  difference  in  the  initial  stress state  due  to  the  different  manufacturing  processes.  The  study  includes  three-dimensional  geometric imperfection measurements conducted by a laser scanner, and, in parallel residual stress measurements  performed  by  the  sectioning  method  using  water  jet  cutting.  The  overall  bow, camber,  and  twist  imperfections  are  determined  from  the  scanned  specimens.  In  addition,  the shapes of the residual stress patterns through the thickness of the angle leg are shown. Based on the findings related to imperfection distributions and amplitudes, a FE analysis is performed both on hot-rolled and laser-welded angles to study the influence of the variability of initial imperfections  on  compression  resistance.  The  separate  and  combined  effects  of  the  measured  residual stresses  and  initial  out-of-straightness  are  considered  and  the  reduction  in  the  buckling  resistances of initially straight angle columns is determined. The structural responses of hot-rolled and laser-welded columns are compared and discussed.",
publisher = "Ernst&Sohn",
journal = "CE/Papers",
title = "Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2610"
}
Filipović, A., Dobrić, J., Marković, Z.,& Baddoo, N.. (2021). Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns. in CE/Papers
Ernst&Sohn..
https://hdl.handle.net/21.15107/rcub_grafar_2610
Filipović A, Dobrić J, Marković Z, Baddoo N. Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns. in CE/Papers. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2610 .
Filipović, Aljoša, Dobrić, Jelena, Marković, Zlatko, Baddoo, Nancy, "Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns" in CE/Papers (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2610 .

The new buckling curves for cold-formed stainless steel equal-leg angle columns

Dobrić, Jelena; Filipović, Aljoša; Baddoo, Nancy; Marković, Zlatko; Buđevac, Dragan

(Univerzitet u Beogradu Građevinski fakultet, 2021)

TY  - CONF
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Baddoo, Nancy
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2607
AB  - Pravila  za  proračun  centrično  pritisnutih  elemenata  ravnokrakog  L  poprečnog  preseka  od 
nerđajućeg čelika nisu eksplicitno definisana u važećem evropskom standardu SRPS EN 1993-
1-4.  Ovaj  rad  ukratko  prikazuje  rezultate  opsežnog  istraživanja  sprovedenog  na  ovom  tipu 
konstruktivnih  elemenata  sa  ciljem  definisanja  preporuka  za  njihov  proračun.  Na  osnovu 
sistematičnog  eksperimentalnog  istraživanja,  sprovedena  je  detaljna  numerička  analiza  i 
definisana  baza  podataka  graničnih  nosivosti  stubova.  Materijalna  i  geometrijska  nelinerana 
analiza obuhvatila je tri ključne legure nerđajućeg čelika, austenitnu, feritnu i dupleks leguru. 
Preporučene su krive izvijanja za kontrolu stabilnosti na fleksiono i fleksiono-torziono izvijanje 
u skladu sa evropskim proračunskim procedurama.
AB  - The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle  members  are  not 
explicitly stated in the current European standard SRPS EN 1993-1-4. This paper summarizes 
the results of extensive research conducted on this type of structural elements aiming to define 
recommendations for their design. Based on a systematic experimental investigation, a detailed 
numerical analysis was performed, and a database of columns’ resistances were defined. Material 
and geometric nonlinear analysis included three key stainless steel alloys, austenitic, ferritic and 
duplex. The design curves for flexural and flexural–torsional buckling check have been proposed 
in accordance with European codified procedures.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress
T1  - The new buckling curves for cold-formed stainless steel equal-leg angle columns
EP  - 510
SP  - 501
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2607
ER  - 
@conference{
author = "Dobrić, Jelena and Filipović, Aljoša and Baddoo, Nancy and Marković, Zlatko and Buđevac, Dragan",
year = "2021",
abstract = "Pravila  za  proračun  centrično  pritisnutih  elemenata  ravnokrakog  L  poprečnog  preseka  od 
nerđajućeg čelika nisu eksplicitno definisana u važećem evropskom standardu SRPS EN 1993-
1-4.  Ovaj  rad  ukratko  prikazuje  rezultate  opsežnog  istraživanja  sprovedenog  na  ovom  tipu 
konstruktivnih  elemenata  sa  ciljem  definisanja  preporuka  za  njihov  proračun.  Na  osnovu 
sistematičnog  eksperimentalnog  istraživanja,  sprovedena  je  detaljna  numerička  analiza  i 
definisana  baza  podataka  graničnih  nosivosti  stubova.  Materijalna  i  geometrijska  nelinerana 
analiza obuhvatila je tri ključne legure nerđajućeg čelika, austenitnu, feritnu i dupleks leguru. 
Preporučene su krive izvijanja za kontrolu stabilnosti na fleksiono i fleksiono-torziono izvijanje 
u skladu sa evropskim proračunskim procedurama., The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle  members  are  not 
explicitly stated in the current European standard SRPS EN 1993-1-4. This paper summarizes 
the results of extensive research conducted on this type of structural elements aiming to define 
recommendations for their design. Based on a systematic experimental investigation, a detailed 
numerical analysis was performed, and a database of columns’ resistances were defined. Material 
and geometric nonlinear analysis included three key stainless steel alloys, austenitic, ferritic and 
duplex. The design curves for flexural and flexural–torsional buckling check have been proposed 
in accordance with European codified procedures.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress",
title = "The new buckling curves for cold-formed stainless steel equal-leg angle columns",
pages = "510-501",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2607"
}
Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2021). The new buckling curves for cold-formed stainless steel equal-leg angle columns. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress
Univerzitet u Beogradu Građevinski fakultet., 501-510.
https://hdl.handle.net/21.15107/rcub_grafar_2607
Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. The new buckling curves for cold-formed stainless steel equal-leg angle columns. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress. 2021;:501-510.
https://hdl.handle.net/21.15107/rcub_grafar_2607 .
Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "The new buckling curves for cold-formed stainless steel equal-leg angle columns" in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress (2021):501-510,
https://hdl.handle.net/21.15107/rcub_grafar_2607 .

The new buckling curves for cold-formed stainless steel equal-leg angle columns

Dobrić, Jelena; Filipović, Aljoša; Baddoo, Nancy; Marković, Zlatko; Buđevac, Dragan

(2021)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Baddoo, Nancy
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2418
AB  - The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle 
members are not explicitly stated in the current European standard SRPS EN 1993-
1-4. This paper summarizes the results of extensive research conducted on this type 
of structural elements aiming to define recommendations for their design. Based on 
a  systematic  experimental  investigation,  a  detailed  numerical  analysis  was 
performed,  and  a  database  of  columns’  resistances  were  defined.  Material  and 
geometric nonlinear analysis included three key stainless steel alloys, austenitic, 
ferritic  and duplex.  The  design  curves  for  flexural  and  flexural–torsional  buckling 
check have been proposed in accordance with European codified procedures.
T2  - Building Materials and Structures
T1  - The new buckling curves for cold-formed stainless steel equal-leg angle columns
IS  - 64
DO  - 10.5937/GRMK2103171D
ER  - 
@article{
author = "Dobrić, Jelena and Filipović, Aljoša and Baddoo, Nancy and Marković, Zlatko and Buđevac, Dragan",
year = "2021",
abstract = "The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle 
members are not explicitly stated in the current European standard SRPS EN 1993-
1-4. This paper summarizes the results of extensive research conducted on this type 
of structural elements aiming to define recommendations for their design. Based on 
a  systematic  experimental  investigation,  a  detailed  numerical  analysis  was 
performed,  and  a  database  of  columns’  resistances  were  defined.  Material  and 
geometric nonlinear analysis included three key stainless steel alloys, austenitic, 
ferritic  and duplex.  The  design  curves  for  flexural  and  flexural–torsional  buckling 
check have been proposed in accordance with European codified procedures.",
journal = "Building Materials and Structures",
title = "The new buckling curves for cold-formed stainless steel equal-leg angle columns",
number = "64",
doi = "10.5937/GRMK2103171D"
}
Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2021). The new buckling curves for cold-formed stainless steel equal-leg angle columns. in Building Materials and Structures(64).
https://doi.org/10.5937/GRMK2103171D
Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. The new buckling curves for cold-formed stainless steel equal-leg angle columns. in Building Materials and Structures. 2021;(64).
doi:10.5937/GRMK2103171D .
Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "The new buckling curves for cold-formed stainless steel equal-leg angle columns" in Building Materials and Structures, no. 64 (2021),
https://doi.org/10.5937/GRMK2103171D . .
2

Experimental study of laser-welded stainless steel angle columns

Filipović, Aljoša; Dobrić, Jelena; Buđevac, Dragan; Fric, Nenad; Baddoo, Nancy

(2021)

TY  - JOUR
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
AU  - Buđevac, Dragan
AU  - Fric, Nenad
AU  - Baddoo, Nancy
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2395
AB  - Substantial research has been conducted in the last years into the structural responses of cold-formed and hot-rolled stainless steel equal-leg angle columns, whereas there is no experimental data on laser-welded stainless steel angle columns despite these sections being increasingly used in the modern construction industry. To fill this gap and provide benchmarks for design, a comprehensive experimental investigation into the structural strength and stability of laser-welded austenitic stainless steel equal-leg angle columns under pure axial compression was performed and described in this paper. A series of laboratory tests, performing on two test groups of specimens with nominal dimensions of 60 × 60 × 6 mm and 100 × 100 × 10 mm and different lengths, involved 6 stub column tests and 20 global buckling tests together with measurements on material properties, initial local geometric imperfections and residual stresses. The experimental observations reveal that the column ultimate capacity and prevalent failure mode — major-axis flexural-torsional buckling and minor-axis flexural buckling — are highly dependent on the column slenderness and initial imperfections. The full load-lateral displacement, load-torsional rotation and load-axial strain responses of the specimens were fully reported and discussed. The results were employed to evaluate the accuracy of the current European and North American stainless steel design standards. The evaluation results revealed that the codified design procedures yield conservative resistance predictions of laser-welded stainless steel equal-leg angle columns, showing a prospective for their modification and improvement by providing more optimized and realistic results in design considering the actual residual stress distributions, material nonlinearity and strain hardening.
T2  - Thin-Walled Structures
T1  - Experimental study of laser-welded stainless steel angle columns
IS  - 164
DO  - 10.1016/j.tws.2021.107777
ER  - 
@article{
author = "Filipović, Aljoša and Dobrić, Jelena and Buđevac, Dragan and Fric, Nenad and Baddoo, Nancy",
year = "2021",
abstract = "Substantial research has been conducted in the last years into the structural responses of cold-formed and hot-rolled stainless steel equal-leg angle columns, whereas there is no experimental data on laser-welded stainless steel angle columns despite these sections being increasingly used in the modern construction industry. To fill this gap and provide benchmarks for design, a comprehensive experimental investigation into the structural strength and stability of laser-welded austenitic stainless steel equal-leg angle columns under pure axial compression was performed and described in this paper. A series of laboratory tests, performing on two test groups of specimens with nominal dimensions of 60 × 60 × 6 mm and 100 × 100 × 10 mm and different lengths, involved 6 stub column tests and 20 global buckling tests together with measurements on material properties, initial local geometric imperfections and residual stresses. The experimental observations reveal that the column ultimate capacity and prevalent failure mode — major-axis flexural-torsional buckling and minor-axis flexural buckling — are highly dependent on the column slenderness and initial imperfections. The full load-lateral displacement, load-torsional rotation and load-axial strain responses of the specimens were fully reported and discussed. The results were employed to evaluate the accuracy of the current European and North American stainless steel design standards. The evaluation results revealed that the codified design procedures yield conservative resistance predictions of laser-welded stainless steel equal-leg angle columns, showing a prospective for their modification and improvement by providing more optimized and realistic results in design considering the actual residual stress distributions, material nonlinearity and strain hardening.",
journal = "Thin-Walled Structures",
title = "Experimental study of laser-welded stainless steel angle columns",
number = "164",
doi = "10.1016/j.tws.2021.107777"
}
Filipović, A., Dobrić, J., Buđevac, D., Fric, N.,& Baddoo, N.. (2021). Experimental study of laser-welded stainless steel angle columns. in Thin-Walled Structures(164).
https://doi.org/10.1016/j.tws.2021.107777
Filipović A, Dobrić J, Buđevac D, Fric N, Baddoo N. Experimental study of laser-welded stainless steel angle columns. in Thin-Walled Structures. 2021;(164).
doi:10.1016/j.tws.2021.107777 .
Filipović, Aljoša, Dobrić, Jelena, Buđevac, Dragan, Fric, Nenad, Baddoo, Nancy, "Experimental study of laser-welded stainless steel angle columns" in Thin-Walled Structures, no. 164 (2021),
https://doi.org/10.1016/j.tws.2021.107777 . .
16
2

Behaviour of duplex stainless steel bolted connections

Dobrić, Jelena; Yancheng, Cai; Young, Ben; Rossi, Barbara

(2021)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Yancheng, Cai
AU  - Young, Ben
AU  - Rossi, Barbara
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2398
AB  - This study deals with the behaviour of duplex stainless steel bolted connections. The aim of the study is torespond to the question if the current stainless steel design specifications are able to predict the behaviourof such connections. Firstly, the net cross-section capacity of duplex stainless steel plates subjected to tensileloading are presented. They were conducted to obtain the stress–strain curves and tensile fracture behaviourused to support the finite element (FE) fracture simulations. Secondly, nonlinear FE models are developedfor duplex stainless steel bolted connections subjected to tensile loading. The FE models are validated againstexperimental data in terms of load–displacement curves, failure modes and ultimate loads. Then, a numericalparametric study that consists of 133 duplex stainless steel grade EN 1.4162 bolted connection specimens iscarried out. The failure modes of bolted connections are carefully examined, including combined tear out andbearing, bearing and net section, looking at the influence of parameters such as end distance, edge distance andspacing between the bolts in the connections. The results are compared to the design rules prescribed in thecurrent stainless steel design specifications. Generally, it is found that the Australian/New Zealand (AS/NZS),American (SEI/ASCE) Specification and European codes conservatively predict the ultimate strengths of thebolted connections, whereas the strengths predicted by the AS/NZS and SEI/ASCE specifications are overallmore accurate and less scattered.
T2  - Thin-Walled Structures
T1  - Behaviour of duplex stainless steel bolted connections
IS  - 169
DO  - 10.1016/j.tws.2021.108380
ER  - 
@article{
author = "Dobrić, Jelena and Yancheng, Cai and Young, Ben and Rossi, Barbara",
year = "2021",
abstract = "This study deals with the behaviour of duplex stainless steel bolted connections. The aim of the study is torespond to the question if the current stainless steel design specifications are able to predict the behaviourof such connections. Firstly, the net cross-section capacity of duplex stainless steel plates subjected to tensileloading are presented. They were conducted to obtain the stress–strain curves and tensile fracture behaviourused to support the finite element (FE) fracture simulations. Secondly, nonlinear FE models are developedfor duplex stainless steel bolted connections subjected to tensile loading. The FE models are validated againstexperimental data in terms of load–displacement curves, failure modes and ultimate loads. Then, a numericalparametric study that consists of 133 duplex stainless steel grade EN 1.4162 bolted connection specimens iscarried out. The failure modes of bolted connections are carefully examined, including combined tear out andbearing, bearing and net section, looking at the influence of parameters such as end distance, edge distance andspacing between the bolts in the connections. The results are compared to the design rules prescribed in thecurrent stainless steel design specifications. Generally, it is found that the Australian/New Zealand (AS/NZS),American (SEI/ASCE) Specification and European codes conservatively predict the ultimate strengths of thebolted connections, whereas the strengths predicted by the AS/NZS and SEI/ASCE specifications are overallmore accurate and less scattered.",
journal = "Thin-Walled Structures",
title = "Behaviour of duplex stainless steel bolted connections",
number = "169",
doi = "10.1016/j.tws.2021.108380"
}
Dobrić, J., Yancheng, C., Young, B.,& Rossi, B.. (2021). Behaviour of duplex stainless steel bolted connections. in Thin-Walled Structures(169).
https://doi.org/10.1016/j.tws.2021.108380
Dobrić J, Yancheng C, Young B, Rossi B. Behaviour of duplex stainless steel bolted connections. in Thin-Walled Structures. 2021;(169).
doi:10.1016/j.tws.2021.108380 .
Dobrić, Jelena, Yancheng, Cai, Young, Ben, Rossi, Barbara, "Behaviour of duplex stainless steel bolted connections" in Thin-Walled Structures, no. 169 (2021),
https://doi.org/10.1016/j.tws.2021.108380 . .
6

Experimental response of hot-rolled stainless steel angle columns

Filipović, Aljoša; Dobrić, Jelena; Baddoo, Nancy; Primož, Može

(2021)

TY  - JOUR
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
AU  - Baddoo, Nancy
AU  - Primož, Može
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2393
AB  - This paper reports on experiments addressing the buckling and collapse behaviour of pin-ended hot-rolled stainless steel equal-leg angle columns under pure axial compression, aiming to provide reliable experimental data needed to develop explicit design guidelines for hot-rolled stainless steel angle columns currently absent in European standard. The systematic experimental programme included two test groups of specimens with nominal dimensions of 60 × 60 × 6 mm and 100 × 100 × 10 mm produced from austenitic grade EN 1.4301, and involved tensile material tests, geometric imperfection measurements, residual stress measurements, 6 stub column tests and 20 global compression tests. A wide range of column slenderness ratios was carefully selected to account for both elastic and inelastic failure characteristics including flexural and flexural-torsional modes and the influence of the legs’ width-to-thickness ratios. The test setup and procedure together with the key experimental results and characterised failure modes, were fully reported and discussed. The test results were compared with those predicted using the design methods for compressed stainless steel angle columns provided in European and North American standards. It was observed that the specifications offer conservative strength predictions of the tested columns, primarily due to the lower distribution of initial geometric imperfections of tested columns in comparison with the permissible fabrication tolerances that are usually used as the basis of stability checks in codified design.
T2  - Thin-Walled Structures
T1  - Experimental response of hot-rolled stainless steel angle columns
IS  - 163
DO  - 10.1016/j.tws.2021.107659
ER  - 
@article{
author = "Filipović, Aljoša and Dobrić, Jelena and Baddoo, Nancy and Primož, Može",
year = "2021",
abstract = "This paper reports on experiments addressing the buckling and collapse behaviour of pin-ended hot-rolled stainless steel equal-leg angle columns under pure axial compression, aiming to provide reliable experimental data needed to develop explicit design guidelines for hot-rolled stainless steel angle columns currently absent in European standard. The systematic experimental programme included two test groups of specimens with nominal dimensions of 60 × 60 × 6 mm and 100 × 100 × 10 mm produced from austenitic grade EN 1.4301, and involved tensile material tests, geometric imperfection measurements, residual stress measurements, 6 stub column tests and 20 global compression tests. A wide range of column slenderness ratios was carefully selected to account for both elastic and inelastic failure characteristics including flexural and flexural-torsional modes and the influence of the legs’ width-to-thickness ratios. The test setup and procedure together with the key experimental results and characterised failure modes, were fully reported and discussed. The test results were compared with those predicted using the design methods for compressed stainless steel angle columns provided in European and North American standards. It was observed that the specifications offer conservative strength predictions of the tested columns, primarily due to the lower distribution of initial geometric imperfections of tested columns in comparison with the permissible fabrication tolerances that are usually used as the basis of stability checks in codified design.",
journal = "Thin-Walled Structures",
title = "Experimental response of hot-rolled stainless steel angle columns",
number = "163",
doi = "10.1016/j.tws.2021.107659"
}
Filipović, A., Dobrić, J., Baddoo, N.,& Primož, M.. (2021). Experimental response of hot-rolled stainless steel angle columns. in Thin-Walled Structures(163).
https://doi.org/10.1016/j.tws.2021.107659
Filipović A, Dobrić J, Baddoo N, Primož M. Experimental response of hot-rolled stainless steel angle columns. in Thin-Walled Structures. 2021;(163).
doi:10.1016/j.tws.2021.107659 .
Filipović, Aljoša, Dobrić, Jelena, Baddoo, Nancy, Primož, Može, "Experimental response of hot-rolled stainless steel angle columns" in Thin-Walled Structures, no. 163 (2021),
https://doi.org/10.1016/j.tws.2021.107659 . .
14
1

Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika

Filipović, Aljoša; Dobrić, Jelena; Blagojević, Dragan; Samardžić - Petrović, Mileva; Buđevac, Dragan; Marković, Zlatko

(Univerzitet u Beogradu Građevinski fakultet, 2021)

TY  - CONF
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
AU  - Blagojević, Dragan
AU  - Samardžić - Petrović, Mileva
AU  - Buđevac, Dragan
AU  - Marković, Zlatko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2609
AB  - Rad  prikazuje  merenje  početnih  geometrijskih  imperfekcija  i  zaostalih  napona  u  okviru 
istraživanja nosivosti centrično pritisnutih elemenata L poprečnog preseka od nerđajućeg čelika. 
Istraživanjem su obuhvaćena tri različita tipa L profila – hladnooblikovani, vrućevaljani i laserski 
zavareni. Postupak i rezultati merenja početnih geometrijskih imperfekcija primenom sistema za 
lasersko merenje prezentovani su u radu. Merenje zaostalih napona metodom sečenja sprovedeno 
je  na  vrućevaljanom  i  laserski  zavarenom  uzorku  nominalnih  dimenzija  100  ×  100  ×  10, 
napraveljenih od austenitnog nerđajućeg čelika EN 1.4301. Postupak merenja zaostalih napona 
i rezultati u formi rasporeda zaostalih napona i ekstremnih vrednosti prikazni su u radu.
AB  - The paper presents initial geometric imperfections and residual stresses measurment as a part of 
a research on ultimate capacity of axially compressed angle columns made from stainless steel. 
The research covers three different angle types – cold-formed, hot-rolled and laser-welded. The 
procedure and results of initial geometric imperfections measurments using a laser measurement 
system are presented. Measurement of residual stresses using a sectioning method was performed 
on hot-rolled and laser-welded samples with nominal dimensions of 100 × 100 × 10, made of 
austenitic  stainless  steel  EN  1.4301.  The  procedure  of  residual  stresses  measurement  and 
obtained results in form of residual stresses distribution and extreme values are presented.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020
T1  - Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika
EP  - 521
SP  - 513
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2609
ER  - 
@conference{
author = "Filipović, Aljoša and Dobrić, Jelena and Blagojević, Dragan and Samardžić - Petrović, Mileva and Buđevac, Dragan and Marković, Zlatko",
year = "2021",
abstract = "Rad  prikazuje  merenje  početnih  geometrijskih  imperfekcija  i  zaostalih  napona  u  okviru 
istraživanja nosivosti centrično pritisnutih elemenata L poprečnog preseka od nerđajućeg čelika. 
Istraživanjem su obuhvaćena tri različita tipa L profila – hladnooblikovani, vrućevaljani i laserski 
zavareni. Postupak i rezultati merenja početnih geometrijskih imperfekcija primenom sistema za 
lasersko merenje prezentovani su u radu. Merenje zaostalih napona metodom sečenja sprovedeno 
je  na  vrućevaljanom  i  laserski  zavarenom  uzorku  nominalnih  dimenzija  100  ×  100  ×  10, 
napraveljenih od austenitnog nerđajućeg čelika EN 1.4301. Postupak merenja zaostalih napona 
i rezultati u formi rasporeda zaostalih napona i ekstremnih vrednosti prikazni su u radu., The paper presents initial geometric imperfections and residual stresses measurment as a part of 
a research on ultimate capacity of axially compressed angle columns made from stainless steel. 
The research covers three different angle types – cold-formed, hot-rolled and laser-welded. The 
procedure and results of initial geometric imperfections measurments using a laser measurement 
system are presented. Measurement of residual stresses using a sectioning method was performed 
on hot-rolled and laser-welded samples with nominal dimensions of 100 × 100 × 10, made of 
austenitic  stainless  steel  EN  1.4301.  The  procedure  of  residual  stresses  measurement  and 
obtained results in form of residual stresses distribution and extreme values are presented.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020",
title = "Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika",
pages = "521-513",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2609"
}
Filipović, A., Dobrić, J., Blagojević, D., Samardžić - Petrović, M., Buđevac, D.,& Marković, Z.. (2021). Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika. in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020
Univerzitet u Beogradu Građevinski fakultet., 513-521.
https://hdl.handle.net/21.15107/rcub_grafar_2609
Filipović A, Dobrić J, Blagojević D, Samardžić - Petrović M, Buđevac D, Marković Z. Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika. in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020. 2021;:513-521.
https://hdl.handle.net/21.15107/rcub_grafar_2609 .
Filipović, Aljoša, Dobrić, Jelena, Blagojević, Dragan, Samardžić - Petrović, Mileva, Buđevac, Dragan, Marković, Zlatko, "Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika" in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020 (2021):513-521,
https://hdl.handle.net/21.15107/rcub_grafar_2609 .

Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns

Dobrić, Jelena; Filipović, Aljoša; Baddoo, Nancy; Buđevac, Dragan; Rossi, Barbara

(2021)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Baddoo, Nancy
AU  - Buđevac, Dragan
AU  - Rossi, Barbara
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2394
AB  - This paper explores an attempt to investigate the structural behaviour and design of equal-leg stainless steel angle columns fabricated by the laser-welding of individual hot-rolled plates and by hot-rolling process. The studies cover columns with pin-ended boundary conditions exposed to pure axial compression. An advanced and realistic finite element model able to replicate the buckling features of stainless steel angle columns is developed and validated against available experiments collected in the literature. Employing the validated finite element model, quantitative numerical parametric studies, considering minor-axis flexural buckling, as well as flexural-torsional buckling, are performed. Based on comprehensive benchmark data, the accuracy, safety and applicability of the existing column design procedures provided in the European and North American structural stainless steel codes are assessed. The evaluation results reveal that the North American codified design procedures lead to conservative and scattered resistance predictions, thereby demonstrating a need for their improvement. As a result of conducted studies, the new criteria for design of pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns are proposed. Their suitability for inclusion in the European structural stainless steel design code is confirmed by statistical reliability analyses in accordance with EN 1990.
T2  - Thin-Walled Structures
T1  - Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns
IS  - 167
DO  - 10.1016/j.tws.2021.108175
ER  - 
@article{
author = "Dobrić, Jelena and Filipović, Aljoša and Baddoo, Nancy and Buđevac, Dragan and Rossi, Barbara",
year = "2021",
abstract = "This paper explores an attempt to investigate the structural behaviour and design of equal-leg stainless steel angle columns fabricated by the laser-welding of individual hot-rolled plates and by hot-rolling process. The studies cover columns with pin-ended boundary conditions exposed to pure axial compression. An advanced and realistic finite element model able to replicate the buckling features of stainless steel angle columns is developed and validated against available experiments collected in the literature. Employing the validated finite element model, quantitative numerical parametric studies, considering minor-axis flexural buckling, as well as flexural-torsional buckling, are performed. Based on comprehensive benchmark data, the accuracy, safety and applicability of the existing column design procedures provided in the European and North American structural stainless steel codes are assessed. The evaluation results reveal that the North American codified design procedures lead to conservative and scattered resistance predictions, thereby demonstrating a need for their improvement. As a result of conducted studies, the new criteria for design of pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns are proposed. Their suitability for inclusion in the European structural stainless steel design code is confirmed by statistical reliability analyses in accordance with EN 1990.",
journal = "Thin-Walled Structures",
title = "Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns",
number = "167",
doi = "10.1016/j.tws.2021.108175"
}
Dobrić, J., Filipović, A., Baddoo, N., Buđevac, D.,& Rossi, B.. (2021). Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns. in Thin-Walled Structures(167).
https://doi.org/10.1016/j.tws.2021.108175
Dobrić J, Filipović A, Baddoo N, Buđevac D, Rossi B. Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns. in Thin-Walled Structures. 2021;(167).
doi:10.1016/j.tws.2021.108175 .
Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Buđevac, Dragan, Rossi, Barbara, "Design criteria for pin-ended hot-rolled and laser-welded stainless steel equal-leg angle columns" in Thin-Walled Structures, no. 167 (2021),
https://doi.org/10.1016/j.tws.2021.108175 . .
8

Behaviour of stainless steel plain channel section columns

Dobrić, Jelena; Ivanović, Jovana; Rossi, Barbara

(2020)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Ivanović, Jovana
AU  - Rossi, Barbara
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2098
AB  - In  this  paper,  the  structural  stability  of  cold-formed  stainless  steel  plain  channel  columns  under  axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated  against  experiments  conducted  on  stainless  steel  lipped  channel  specimens.  This  is  followed  by  a parametric  study  in  which  columns  made  of  austenitic,  ferritic  and  duplex  stainless  steel  are  assessed.  The considered cross-section classes and column lengths cover the entire range of global slenderness. The effects of 
material and geometrical nonlinearity are considered in the numerical analysis. The numerically generated data are then employed to evaluate the accuracy of the current European and Australian design codes EN 1993-1-4 and AS/NZS  4673  respectively, for predicting the flexural and flexural-torsional column buckling resistance. The results show a necessity to improve the current buckling curve used to predict the flexural buckling resistance of plain channel section columns, currently adopted in EN 1993-1-4, whose use may lead to unsafe predictions, especially for the austenitic grade.
T2  - Thin-Walled Structures
T1  - Behaviour of stainless steel plain channel section columns
VL  - 148
DO  - https://doi.org/10.1016/j.tws.2020.106600
ER  - 
@article{
author = "Dobrić, Jelena and Ivanović, Jovana and Rossi, Barbara",
year = "2020",
abstract = "In  this  paper,  the  structural  stability  of  cold-formed  stainless  steel  plain  channel  columns  under  axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated  against  experiments  conducted  on  stainless  steel  lipped  channel  specimens.  This  is  followed  by  a parametric  study  in  which  columns  made  of  austenitic,  ferritic  and  duplex  stainless  steel  are  assessed.  The considered cross-section classes and column lengths cover the entire range of global slenderness. The effects of 
material and geometrical nonlinearity are considered in the numerical analysis. The numerically generated data are then employed to evaluate the accuracy of the current European and Australian design codes EN 1993-1-4 and AS/NZS  4673  respectively, for predicting the flexural and flexural-torsional column buckling resistance. The results show a necessity to improve the current buckling curve used to predict the flexural buckling resistance of plain channel section columns, currently adopted in EN 1993-1-4, whose use may lead to unsafe predictions, especially for the austenitic grade.",
journal = "Thin-Walled Structures",
title = "Behaviour of stainless steel plain channel section columns",
volume = "148",
doi = "https://doi.org/10.1016/j.tws.2020.106600"
}
Dobrić, J., Ivanović, J.,& Rossi, B.. (2020). Behaviour of stainless steel plain channel section columns. in Thin-Walled Structures, 148.
https://doi.org/https://doi.org/10.1016/j.tws.2020.106600
Dobrić J, Ivanović J, Rossi B. Behaviour of stainless steel plain channel section columns. in Thin-Walled Structures. 2020;148.
doi:https://doi.org/10.1016/j.tws.2020.106600 .
Dobrić, Jelena, Ivanović, Jovana, Rossi, Barbara, "Behaviour of stainless steel plain channel section columns" in Thin-Walled Structures, 148 (2020),
https://doi.org/https://doi.org/10.1016/j.tws.2020.106600 . .

Column Curves for Stainless Steel Lipped–Channel Sections

Dobrić, Jelena; Rossi, Barbara

(2020)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Rossi, Barbara
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2097
AB  - The strength of thin-walled stainless steel columns has been investigated extensively over the last few years. The present paper presents the results of an extensive computational study of the buckling strength of lipped–channel section columns made of austenitic, duplex, and ferritic grades. The numerically computed strengths together with the available experimental data collected in the literature are compared to the current European and Australian/New Zealand standard (AS/NZS) codified predictions over the whole slenderness range. Minor and major axis buckling as well as flexural-torsional buckling are considered. A reliability assessment in the sense of both standards is then performed. The safety factor γm and resistance factor ϕc are computed per family of stainless steel. In conclusion, we advise the use of different European buckling column curves rather than the one currently adopted in the code and to make a distinction between the families of stainless steel. Besides, seeing the very good agreement found against the AS/NZS guidance, we propose that the factor η, currently being a linear expression in the European standard, be replaced by the AS/NZS expression with the proposed parameters for each stainless steel family.
T2  - Journal  of  Structural  Engineering
T1  - Column Curves for Stainless Steel Lipped–Channel Sections
VL  - 146
DO  - 10.1061/(ASCE)ST.1943-541X.0002708
ER  - 
@article{
author = "Dobrić, Jelena and Rossi, Barbara",
year = "2020",
abstract = "The strength of thin-walled stainless steel columns has been investigated extensively over the last few years. The present paper presents the results of an extensive computational study of the buckling strength of lipped–channel section columns made of austenitic, duplex, and ferritic grades. The numerically computed strengths together with the available experimental data collected in the literature are compared to the current European and Australian/New Zealand standard (AS/NZS) codified predictions over the whole slenderness range. Minor and major axis buckling as well as flexural-torsional buckling are considered. A reliability assessment in the sense of both standards is then performed. The safety factor γm and resistance factor ϕc are computed per family of stainless steel. In conclusion, we advise the use of different European buckling column curves rather than the one currently adopted in the code and to make a distinction between the families of stainless steel. Besides, seeing the very good agreement found against the AS/NZS guidance, we propose that the factor η, currently being a linear expression in the European standard, be replaced by the AS/NZS expression with the proposed parameters for each stainless steel family.",
journal = "Journal  of  Structural  Engineering",
title = "Column Curves for Stainless Steel Lipped–Channel Sections",
volume = "146",
doi = "10.1061/(ASCE)ST.1943-541X.0002708"
}
Dobrić, J.,& Rossi, B.. (2020). Column Curves for Stainless Steel Lipped–Channel Sections. in Journal  of  Structural  Engineering, 146.
https://doi.org/10.1061/(ASCE)ST.1943-541X.0002708
Dobrić J, Rossi B. Column Curves for Stainless Steel Lipped–Channel Sections. in Journal  of  Structural  Engineering. 2020;146.
doi:10.1061/(ASCE)ST.1943-541X.0002708 .
Dobrić, Jelena, Rossi, Barbara, "Column Curves for Stainless Steel Lipped–Channel Sections" in Journal  of  Structural  Engineering, 146 (2020),
https://doi.org/10.1061/(ASCE)ST.1943-541X.0002708 . .
3
1
4

Structural response to axial testing of cold-formed stainless steel angle columns

Dobrić, Jelena; Filipović, Aljoša; Marković, Zlatko; Baddoo, Nancy

(2020)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Marković, Zlatko
AU  - Baddoo, Nancy
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2096
AB  - In this paper, the structural stability and compressive capacity of pin-ended cold-formed stainless steel angle columns with different slenderness were experimentally investigated. The experimental programme was performed on press-braked lean duplex stainless steel equal-leg angle sections with nominal dimensions of 80 × 80 × 4 mm, and involved material testing, initial imperfection measurements and 11 column tests. The test setup and procedure, together with the key experimental results, axial load vs. lateral deflections, axial load vs. torsional rotations and characterised failure modes, were fully reported and analysed. The experimental observations reveal that the failure mode type, including local/torsional, flexural-torsional and flexural effects, is highly dependent on the column's slenderness and initial imperfections. The measured compressive strengths were compared with the resistance predictions determined according to European and Australia/New Zealand codified design procedures. It was found that experimentally obtained ultimate capacities are significantly higher than those calculated according to the specifications. However, the database of test results is still quite limited, and a further research is needed to amplify the data needed to enable a more precise assessment of the codified procedures.
T2  - Thin-Walled Structures
T1  - Structural response to axial testing of cold-formed stainless steel angle columns
VL  - 156
DO  - https://doi.org/10.1016/j.tws.2020.106986
ER  - 
@article{
author = "Dobrić, Jelena and Filipović, Aljoša and Marković, Zlatko and Baddoo, Nancy",
year = "2020",
abstract = "In this paper, the structural stability and compressive capacity of pin-ended cold-formed stainless steel angle columns with different slenderness were experimentally investigated. The experimental programme was performed on press-braked lean duplex stainless steel equal-leg angle sections with nominal dimensions of 80 × 80 × 4 mm, and involved material testing, initial imperfection measurements and 11 column tests. The test setup and procedure, together with the key experimental results, axial load vs. lateral deflections, axial load vs. torsional rotations and characterised failure modes, were fully reported and analysed. The experimental observations reveal that the failure mode type, including local/torsional, flexural-torsional and flexural effects, is highly dependent on the column's slenderness and initial imperfections. The measured compressive strengths were compared with the resistance predictions determined according to European and Australia/New Zealand codified design procedures. It was found that experimentally obtained ultimate capacities are significantly higher than those calculated according to the specifications. However, the database of test results is still quite limited, and a further research is needed to amplify the data needed to enable a more precise assessment of the codified procedures.",
journal = "Thin-Walled Structures",
title = "Structural response to axial testing of cold-formed stainless steel angle columns",
volume = "156",
doi = "https://doi.org/10.1016/j.tws.2020.106986"
}
Dobrić, J., Filipović, A., Marković, Z.,& Baddoo, N.. (2020). Structural response to axial testing of cold-formed stainless steel angle columns. in Thin-Walled Structures, 156.
https://doi.org/https://doi.org/10.1016/j.tws.2020.106986
Dobrić J, Filipović A, Marković Z, Baddoo N. Structural response to axial testing of cold-formed stainless steel angle columns. in Thin-Walled Structures. 2020;156.
doi:https://doi.org/10.1016/j.tws.2020.106986 .
Dobrić, Jelena, Filipović, Aljoša, Marković, Zlatko, Baddoo, Nancy, "Structural response to axial testing of cold-formed stainless steel angle columns" in Thin-Walled Structures, 156 (2020),
https://doi.org/https://doi.org/10.1016/j.tws.2020.106986 . .

Comparison of wind actions according to Eurocode and previous regulations

Marković, Zlatko; Dobrić, Jelena; Gluhović, Nina

(SS Cyril and Methodius Faculty of Civil Engineering, 2020)

TY  - JOUR
AU  - Marković, Zlatko
AU  - Dobrić, Jelena
AU  - Gluhović, Nina
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2179
AB  - European norms for civil engineering structures, well known as Eurocodes, are set of
highly harmonized codes regarding structural issues. Main rules and recommendations for
calculation of wind actions on structures are given in EN 1991-1-4 which is the basic document. Also, some advanced analysis regarding wind actions on towers and masts are given in EN 1993-3-1, with the intention to be transferred in the basic document in the later phase. This paper contains a short presentation of the main rules and recommendations for wind action analysis and their comparison with previous regulations JUS (SRPS). The main focus of the paper is on wind action on buildings and comparative numerical example is also given. Some experiences and conclusions from the process of Serbian National Annex preparation are also presented.
PB  - SS Cyril and Methodius Faculty of Civil Engineering
T2  - Scientific Journal of Civil Engineering
T1  - Comparison of wind actions according to Eurocode and previous regulations
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2179
ER  - 
@article{
author = "Marković, Zlatko and Dobrić, Jelena and Gluhović, Nina",
year = "2020",
abstract = "European norms for civil engineering structures, well known as Eurocodes, are set of
highly harmonized codes regarding structural issues. Main rules and recommendations for
calculation of wind actions on structures are given in EN 1991-1-4 which is the basic document. Also, some advanced analysis regarding wind actions on towers and masts are given in EN 1993-3-1, with the intention to be transferred in the basic document in the later phase. This paper contains a short presentation of the main rules and recommendations for wind action analysis and their comparison with previous regulations JUS (SRPS). The main focus of the paper is on wind action on buildings and comparative numerical example is also given. Some experiences and conclusions from the process of Serbian National Annex preparation are also presented.",
publisher = "SS Cyril and Methodius Faculty of Civil Engineering",
journal = "Scientific Journal of Civil Engineering",
title = "Comparison of wind actions according to Eurocode and previous regulations",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2179"
}
Marković, Z., Dobrić, J.,& Gluhović, N.. (2020). Comparison of wind actions according to Eurocode and previous regulations. in Scientific Journal of Civil Engineering
SS Cyril and Methodius Faculty of Civil Engineering., 9.
https://hdl.handle.net/21.15107/rcub_grafar_2179
Marković Z, Dobrić J, Gluhović N. Comparison of wind actions according to Eurocode and previous regulations. in Scientific Journal of Civil Engineering. 2020;9.
https://hdl.handle.net/21.15107/rcub_grafar_2179 .
Marković, Zlatko, Dobrić, Jelena, Gluhović, Nina, "Comparison of wind actions according to Eurocode and previous regulations" in Scientific Journal of Civil Engineering, 9 (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2179 .

Design procedures for cold-formed stainless steel equal-leg angle columns

Dobrić, Jelena; Filipović, Aljoša; Baddoo, Nancy; Marković, Zlatko; Buđevac, Dragan

(2020)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Baddoo, Nancy
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2129
AB  - Currently, there is still no explicit design approach for cold-formed stainless steel columns with equal-leg angle sections in Europe. A comprehensive numerical investigation, validated by the available experiments collected in the literature, has therefore been undertaken to provide benchmark data for the assessment of design procedures for cold-formed stainless steel angle columns currently adopted in European and Australian codes. Minor-axis flexural buckling, as well as flexural-torsional buckling have been considered. In total, 27 different cross-section sizes covering both slender and non-slender sections, and a wide range of column slenderness values have been examined including austenitic, duplex and ferritic grades. On the basis of the experimental and numerical results, new design recommendations for cold-formed stainless steel equal-leg angle columns have been made per family of stainless steel. The suitability of the proposals was confirmed by means of a reliability analysis.
T2  - Thin-Walled Structures
T1  - Design procedures for cold-formed stainless steel equal-leg angle columns
DO  - https://doi.org/10.1016/j.tws.2020.107210
ER  - 
@article{
author = "Dobrić, Jelena and Filipović, Aljoša and Baddoo, Nancy and Marković, Zlatko and Buđevac, Dragan",
year = "2020",
abstract = "Currently, there is still no explicit design approach for cold-formed stainless steel columns with equal-leg angle sections in Europe. A comprehensive numerical investigation, validated by the available experiments collected in the literature, has therefore been undertaken to provide benchmark data for the assessment of design procedures for cold-formed stainless steel angle columns currently adopted in European and Australian codes. Minor-axis flexural buckling, as well as flexural-torsional buckling have been considered. In total, 27 different cross-section sizes covering both slender and non-slender sections, and a wide range of column slenderness values have been examined including austenitic, duplex and ferritic grades. On the basis of the experimental and numerical results, new design recommendations for cold-formed stainless steel equal-leg angle columns have been made per family of stainless steel. The suitability of the proposals was confirmed by means of a reliability analysis.",
journal = "Thin-Walled Structures",
title = "Design procedures for cold-formed stainless steel equal-leg angle columns",
doi = "https://doi.org/10.1016/j.tws.2020.107210"
}
Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2020). Design procedures for cold-formed stainless steel equal-leg angle columns. in Thin-Walled Structures.
https://doi.org/https://doi.org/10.1016/j.tws.2020.107210
Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. Design procedures for cold-formed stainless steel equal-leg angle columns. in Thin-Walled Structures. 2020;.
doi:https://doi.org/10.1016/j.tws.2020.107210 .
Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "Design procedures for cold-formed stainless steel equal-leg angle columns" in Thin-Walled Structures (2020),
https://doi.org/https://doi.org/10.1016/j.tws.2020.107210 . .