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 .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Gluhović, Nina
AU  - Spremić, Milan
AU  - Rajnović, Dušan
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3469
AB  - Ground floors of industrial buildings, fully supported on the ground or piles, are usually made
of several concrete segments connected through free-movement construction joints. These joints
should provide shear load transfer of the slab and minimise its vertical displacements while
allowing slab horizontal movement to prevent damage due to concrete dry shrinkage. The
construction joint “Dilat 08”, consisting of round steel dowels and steel formwork, was
experimentally tested in a laboratory environment to determine its behaviour to shear load. The
experimental double-shear setup consisted of three slabs connecting through the “Dilat 08” join
system, with two side slabs fully supported on the base and the middle slab on which the vertical
loading was applied. Specimens were formed with a gap of 10 mm between adjacent slabs to
simulate the construction joint opening. Two construction joint orientations were investigated
introducing the vertical load to the slab with a steel plate on the edge and to the slab with an
angle profile on the edge. Experimental testing of both specimens resulted in construction joint
failure due to concrete cracking around steel dowels, near the edges of the middle slab. The
investigation confirmed that the joint orientation affects the joint shear response, demonstrating
larger joint resistance when the steel plate is installed in the slab subjected to failure. Although
contributing to the joint bending stiffness before formwork installation on the site, the horizontal
leg of the angle profile decreases the joint resistance. Experimentally obtained joint resistance
was compared to the design values of resistance according to Technical Report 34 and EN 1992-
4, highlighting a considerable difference between the two analytical approaches. The comparison
between the “Dilat 08” and three types of free-movement joints available on the construction
market showed that “Dilat 08” features larger resistance according to Technical Report 34, but
it also weighs more.
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  - Experimental investigation of the construction joint in concrete ground floors
EP  - 224
SP  - 217
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3469
ER  - 

@conference{
author = "Jakovljević, Isidora and Gluhović, Nina and Spremić, Milan and Rajnović, Dušan",
year = "2024",
abstract = "Ground floors of industrial buildings, fully supported on the ground or piles, are usually made
of several concrete segments connected through free-movement construction joints. These joints
should provide shear load transfer of the slab and minimise its vertical displacements while
allowing slab horizontal movement to prevent damage due to concrete dry shrinkage. The
construction joint “Dilat 08”, consisting of round steel dowels and steel formwork, was
experimentally tested in a laboratory environment to determine its behaviour to shear load. The
experimental double-shear setup consisted of three slabs connecting through the “Dilat 08” join
system, with two side slabs fully supported on the base and the middle slab on which the vertical
loading was applied. Specimens were formed with a gap of 10 mm between adjacent slabs to
simulate the construction joint opening. Two construction joint orientations were investigated
introducing the vertical load to the slab with a steel plate on the edge and to the slab with an
angle profile on the edge. Experimental testing of both specimens resulted in construction joint
failure due to concrete cracking around steel dowels, near the edges of the middle slab. The
investigation confirmed that the joint orientation affects the joint shear response, demonstrating
larger joint resistance when the steel plate is installed in the slab subjected to failure. Although
contributing to the joint bending stiffness before formwork installation on the site, the horizontal
leg of the angle profile decreases the joint resistance. Experimentally obtained joint resistance
was compared to the design values of resistance according to Technical Report 34 and EN 1992-
4, highlighting a considerable difference between the two analytical approaches. The comparison
between the “Dilat 08” and three types of free-movement joints available on the construction
market showed that “Dilat 08” features larger resistance according to Technical Report 34, but
it also weighs more.",
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 = "Experimental investigation of the construction joint in concrete ground floors",
pages = "224-217",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3469"
}

Jakovljević, I., Gluhović, N., Spremić, M.,& Rajnović, D.. (2024). Experimental investigation of the construction joint in concrete ground floors. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024
University of Montenegro, Faculty of Civil Engineering., 217-224.
https://hdl.handle.net/21.15107/rcub_grafar_3469

Jakovljević I, Gluhović N, Spremić M, Rajnović D. Experimental investigation of the construction joint in concrete ground floors. in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024. 2024;:217-224.
https://hdl.handle.net/21.15107/rcub_grafar_3469 .

Jakovljević, Isidora, Gluhović, Nina, Spremić, Milan, Rajnović, Dušan, "Experimental investigation of the construction joint in concrete ground floors" in Proceedings of The 9th International Conference "Civil Engineering – Science and Practice", Kolašin, 5-9th March 2024 (2024):217-224,
https://hdl.handle.net/21.15107/rcub_grafar_3469 .

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 .

TY  - JOUR
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3459
AB  - Headed stud shear connectors are commonly implemented in steel-concrete composite floors for connecting the concrete slab to the steel beam and providing composite action between those two elements. The orientation of profiled sheeting is usually transverse or parallel to the supporting beam, and for those cases, design codes provide specific detailing requests and relations for obtaining headed stud resistance. Nevertheless, design codes do not recognise specific configurations when the angle between profiled sheeting ribs and the beam is in the range between 0° and 90°, which is characteristic of irregular-shaped floor structures. Due to the lack of design recommendations for headed stud resistance in these cases, investigations of the effect of the rib-to-beam angle on headed stud shear performance were conducted and presented in this paper. Experimental work included push-out tests conducted on specimens with rib-to-beam angles of 45° and 60°, as well as control specimens with ribs transverse to the beam. The influence of varied rib-to-beam angles on shear connector properties such as shear resistance, stiffness, ductility, and failure mode was discussed. According to experimental research, finite element models of push-out tests were created and verified. The parametric numerical analysis covered key parameters such as concrete class, headed stud height and diameter, and rib-to-beam angle. According to the results, an analytical relation for obtaining headed stud resistance in profiled steel sheeting with a rib-to-beam angle between 30° and 90° was proposed.
PB  - Elsevier
T2  - Engineering Structures
T1  - Effect of rib-to-beam angle on the shear resistance of headed studs in composite slab
SP  - 117574
VL  - 303
DO  - 10.1016/j.engstruct.2024.117574
ER  - 

@article{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2024",
abstract = "Headed stud shear connectors are commonly implemented in steel-concrete composite floors for connecting the concrete slab to the steel beam and providing composite action between those two elements. The orientation of profiled sheeting is usually transverse or parallel to the supporting beam, and for those cases, design codes provide specific detailing requests and relations for obtaining headed stud resistance. Nevertheless, design codes do not recognise specific configurations when the angle between profiled sheeting ribs and the beam is in the range between 0° and 90°, which is characteristic of irregular-shaped floor structures. Due to the lack of design recommendations for headed stud resistance in these cases, investigations of the effect of the rib-to-beam angle on headed stud shear performance were conducted and presented in this paper. Experimental work included push-out tests conducted on specimens with rib-to-beam angles of 45° and 60°, as well as control specimens with ribs transverse to the beam. The influence of varied rib-to-beam angles on shear connector properties such as shear resistance, stiffness, ductility, and failure mode was discussed. According to experimental research, finite element models of push-out tests were created and verified. The parametric numerical analysis covered key parameters such as concrete class, headed stud height and diameter, and rib-to-beam angle. According to the results, an analytical relation for obtaining headed stud resistance in profiled steel sheeting with a rib-to-beam angle between 30° and 90° was proposed.",
publisher = "Elsevier",
journal = "Engineering Structures",
title = "Effect of rib-to-beam angle on the shear resistance of headed studs in composite slab",
pages = "117574",
volume = "303",
doi = "10.1016/j.engstruct.2024.117574"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2024). Effect of rib-to-beam angle on the shear resistance of headed studs in composite slab. in Engineering Structures
Elsevier., 303, 117574.
https://doi.org/10.1016/j.engstruct.2024.117574

Jakovljević I, Spremić M, Marković Z. Effect of rib-to-beam angle on the shear resistance of headed studs in composite slab. in Engineering Structures. 2024;303:117574.
doi:10.1016/j.engstruct.2024.117574 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Effect of rib-to-beam angle on the shear resistance of headed studs in composite slab" in Engineering Structures, 303 (2024):117574,
https://doi.org/10.1016/j.engstruct.2024.117574 . .

TY  - JOUR
AU  - Milićević, Ivan
AU  - Milosavljević, Branko
AU  - Spremić, Milan
AU  - Rastislav, Mandić
AU  - Popović, Marko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3452
AB  - In the past few decades, demountable connectors have often been used for
connections in composite and mixed steel-concrete structures to reduce
construction time and costs. Furthermore, the application of demountable
connectors enables the reuse of structural elements in these structures, which leads
to sustainable design and a circular economy. In this paper, the demountable
connector is made out of two parts: (1) mechanical coupler and rebar anchor placed
in formwork before casting the concrete element, and (2) steel bolt used for
connecting steel to the RC element. Although this connector is increasingly being
used in contemporary building structures, its behaviour in composite connections is
still insufficiently defined. The paper presents the results of experimental tests and
numerical analysis of the connector with a mechanical coupler, focusing on the local
behaviour of the tapered threaded connection between the mechanical coupler and
rebar anchor.
PB  - Society for Materials and Structures Testing of Serbia; Faculty of Civil Engineering, University of Belgrade, Serbia; Association of Structural Engineers of Serbia
T2  - Građevinski materijali i konstrukcije
T1  - Local behaviour of the connector with mechanical coupler and rebar anchor under tension load
EP  - 114
IS  - 2
SP  - 107
VL  - 66
DO  - 10.5937/GRMK2300002M
ER  - 

@article{
author = "Milićević, Ivan and Milosavljević, Branko and Spremić, Milan and Rastislav, Mandić and Popović, Marko",
year = "2023",
abstract = "In the past few decades, demountable connectors have often been used for
connections in composite and mixed steel-concrete structures to reduce
construction time and costs. Furthermore, the application of demountable
connectors enables the reuse of structural elements in these structures, which leads
to sustainable design and a circular economy. In this paper, the demountable
connector is made out of two parts: (1) mechanical coupler and rebar anchor placed
in formwork before casting the concrete element, and (2) steel bolt used for
connecting steel to the RC element. Although this connector is increasingly being
used in contemporary building structures, its behaviour in composite connections is
still insufficiently defined. The paper presents the results of experimental tests and
numerical analysis of the connector with a mechanical coupler, focusing on the local
behaviour of the tapered threaded connection between the mechanical coupler and
rebar anchor.",
publisher = "Society for Materials and Structures Testing of Serbia; Faculty of Civil Engineering, University of Belgrade, Serbia; Association of Structural Engineers of Serbia",
journal = "Građevinski materijali i konstrukcije",
title = "Local behaviour of the connector with mechanical coupler and rebar anchor under tension load",
pages = "114-107",
number = "2",
volume = "66",
doi = "10.5937/GRMK2300002M"
}

Milićević, I., Milosavljević, B., Spremić, M., Rastislav, M.,& Popović, M.. (2023). Local behaviour of the connector with mechanical coupler and rebar anchor under tension load. in Građevinski materijali i konstrukcije
Society for Materials and Structures Testing of Serbia; Faculty of Civil Engineering, University of Belgrade, Serbia; Association of Structural Engineers of Serbia., 66(2), 107-114.
https://doi.org/10.5937/GRMK2300002M

Milićević I, Milosavljević B, Spremić M, Rastislav M, Popović M. Local behaviour of the connector with mechanical coupler and rebar anchor under tension load. in Građevinski materijali i konstrukcije. 2023;66(2):107-114.
doi:10.5937/GRMK2300002M .

Milićević, Ivan, Milosavljević, Branko, Spremić, Milan, Rastislav, Mandić, Popović, Marko, "Local behaviour of the connector with mechanical coupler and rebar anchor under tension load" in Građevinski materijali i konstrukcije, 66, no. 2 (2023):107-114,
https://doi.org/10.5937/GRMK2300002M . .

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 . .

TY  - JOUR
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3256
AB  - Following the trend of sustainable development and structure reuse, many novel solutions related to demountable shear connectors for application in steel-concrete composite beams have been proposed in recent years. This paper provides a further contribution to the research field by proposing a demountable connection with bolts and welded headed studs. The transfer of shear force between a steel flange and a composite concrete slab cast in an open trough profiled steel sheeting is indirect, passing through a steel plate or angles. The proposed solution enables convenient dismantling and reuse of both the composite slab and the steel profile. The experimental investigation included push-out tests, performed to assess the connection shear behaviour, determine resistance and ductility, and identify failure modes. Various configurations of the demountable connection were analysed, including connections with continuous and discontinuous slabs over the support. The response of the suggested demountable solution was compared to the corresponding non-demountable shear connection with headed studs. According to experimental investigation, finite element models were developed, and their accuracy was validated by comparing numerical predictions with experimental results. Parametric studies were conducted using numerical models to evaluate the effects of key parameters on the connection performance, such as plate and angle thickness, stirrup reinforcement position, and transverse distance between a headed stud and slab edge. Directions for design were proposed taking into account the results obtained.
PB  - The Hong Kong Institute of Steel Construction
T2  - Advanced Steel Construction
T1  - Shear behaviour of demountable connections with bolts and headed studs
EP  - 352
IS  - 4
SP  - 341
VL  - 19
DO  - 10.18057/IJASC.2023.19.4.3
ER  - 

@article{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2023",
abstract = "Following the trend of sustainable development and structure reuse, many novel solutions related to demountable shear connectors for application in steel-concrete composite beams have been proposed in recent years. This paper provides a further contribution to the research field by proposing a demountable connection with bolts and welded headed studs. The transfer of shear force between a steel flange and a composite concrete slab cast in an open trough profiled steel sheeting is indirect, passing through a steel plate or angles. The proposed solution enables convenient dismantling and reuse of both the composite slab and the steel profile. The experimental investigation included push-out tests, performed to assess the connection shear behaviour, determine resistance and ductility, and identify failure modes. Various configurations of the demountable connection were analysed, including connections with continuous and discontinuous slabs over the support. The response of the suggested demountable solution was compared to the corresponding non-demountable shear connection with headed studs. According to experimental investigation, finite element models were developed, and their accuracy was validated by comparing numerical predictions with experimental results. Parametric studies were conducted using numerical models to evaluate the effects of key parameters on the connection performance, such as plate and angle thickness, stirrup reinforcement position, and transverse distance between a headed stud and slab edge. Directions for design were proposed taking into account the results obtained.",
publisher = "The Hong Kong Institute of Steel Construction",
journal = "Advanced Steel Construction",
title = "Shear behaviour of demountable connections with bolts and headed studs",
pages = "352-341",
number = "4",
volume = "19",
doi = "10.18057/IJASC.2023.19.4.3"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2023). Shear behaviour of demountable connections with bolts and headed studs. in Advanced Steel Construction
The Hong Kong Institute of Steel Construction., 19(4), 341-352.
https://doi.org/10.18057/IJASC.2023.19.4.3

Jakovljević I, Spremić M, Marković Z. Shear behaviour of demountable connections with bolts and headed studs. in Advanced Steel Construction. 2023;19(4):341-352.
doi:10.18057/IJASC.2023.19.4.3 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Shear behaviour of demountable connections with bolts and headed studs" in Advanced Steel Construction, 19, no. 4 (2023):341-352,
https://doi.org/10.18057/IJASC.2023.19.4.3 . .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3183
AB  - Push-out tests are commonly used to investigate the shear performance of mechanical connectors
applicable in steel-concrete composite beams. These tests can be complemented by numerical finite element simulations to reduce the need for extensive experimental testing. After validation against experimental results, numerical models could be used for additional analysis and parametric studies. The development of finite element models of push-out tests requires special attention to be put on modelling concrete behaviour, especially if concrete failure is the dominant failure mode. The concrete damage plasticity (CDP) models, combining plasticity and damage mechanics to represent the nonlinear behaviour of concrete, are commonly applied. This paper summarises and presents four different CDP models that have been successfully used by researchers in finite element simulations of push-out tests. The applicability of different models has been discussed in the specific case of shear connection with headed studs in profiled steel sheeting with a varied angle between profiled sheeting ribs and the beam. Results of comparative analysis are presented, indicating a significant influence of the applied CDP model on the response of push-out specimen. The best match between experimental and numerical results is accomplished by implementing the material model proposed by Pavlović with calibrated input parameters. Nevertheless, the applicability of each CDP model depends on the specific problem that is being analysed and therefore should be carefully approached.
PB  - MASE - Macedonian Association of Structural Engineers, Skopje
C3  - Proceedings of The 20th Inernational Symposium of MASE, Skopje, 28-29th September 2023
T1  - Concrete modeling in finite element push-out test simulations
EP  - 381
SP  - 372
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3183
ER  - 

@conference{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2023",
abstract = "Push-out tests are commonly used to investigate the shear performance of mechanical connectors
applicable in steel-concrete composite beams. These tests can be complemented by numerical finite element simulations to reduce the need for extensive experimental testing. After validation against experimental results, numerical models could be used for additional analysis and parametric studies. The development of finite element models of push-out tests requires special attention to be put on modelling concrete behaviour, especially if concrete failure is the dominant failure mode. The concrete damage plasticity (CDP) models, combining plasticity and damage mechanics to represent the nonlinear behaviour of concrete, are commonly applied. This paper summarises and presents four different CDP models that have been successfully used by researchers in finite element simulations of push-out tests. The applicability of different models has been discussed in the specific case of shear connection with headed studs in profiled steel sheeting with a varied angle between profiled sheeting ribs and the beam. Results of comparative analysis are presented, indicating a significant influence of the applied CDP model on the response of push-out specimen. The best match between experimental and numerical results is accomplished by implementing the material model proposed by Pavlović with calibrated input parameters. Nevertheless, the applicability of each CDP model depends on the specific problem that is being analysed and therefore should be carefully approached.",
publisher = "MASE - Macedonian Association of Structural Engineers, Skopje",
journal = "Proceedings of The 20th Inernational Symposium of MASE, Skopje, 28-29th September 2023",
title = "Concrete modeling in finite element push-out test simulations",
pages = "381-372",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3183"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2023). Concrete modeling in finite element push-out test simulations. in Proceedings of The 20th Inernational Symposium of MASE, Skopje, 28-29th September 2023
MASE - Macedonian Association of Structural Engineers, Skopje., 372-381.
https://hdl.handle.net/21.15107/rcub_grafar_3183

Jakovljević I, Spremić M, Marković Z. Concrete modeling in finite element push-out test simulations. in Proceedings of The 20th Inernational Symposium of MASE, Skopje, 28-29th September 2023. 2023;:372-381.
https://hdl.handle.net/21.15107/rcub_grafar_3183 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Concrete modeling in finite element push-out test simulations" in Proceedings of The 20th Inernational Symposium of MASE, Skopje, 28-29th September 2023 (2023):372-381,
https://hdl.handle.net/21.15107/rcub_grafar_3183 .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Fric, Nenad
AU  - Marković, Zlatko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3154
AB  - Implementation of demountable beams in steel-concrete composite floors enables
structure reuse during several life cycles, consequently leading to savings in material
consumption and reduction of emissions, providing overall ecological benefits.
The behaviour of the innovative demountable beam with a shear connection consisting
of headed studs and bolts is analysed in this paper. The proposed beam is
formed of a steel profile and a steel-concrete composite slab cast in open trough
profiled steel sheeting. Headed studs, welded to the additional steel angles, are
placed in sheeting ribs, whereas bolts are installed between ribs, connecting the
steel angles and profile flange. A numerical FE model of a full-scale steel-concrete
composite beam has been developed to analyse the beam behaviour under service
loads. Experimental results of push-out tests have been used to describe the loadslip
behaviour of headed studs, whereas bolt response has been simulated according
to the experimental investigations of lap joints with preloaded bolts and oversize
holes. The parametric study has been conducted by varying the bolt diameter, grade
and bolt hole size. The results have validated the applicability of the proposed system,
confirming the fulfilment of serviceability limit state requirements.
PB  - Ernst & Sohn GmbH
C3  - ce/papers
T1  - Behaviour of demountable steel-concrete composite beams with bolts and headed studs
EP  - 89
IS  - 3-4
SP  - 84
VL  - 6
DO  - 10.1002/cepa.2399
ER  - 

@conference{
author = "Jakovljević, Isidora and Spremić, Milan and Fric, Nenad and Marković, Zlatko",
year = "2023",
abstract = "Implementation of demountable beams in steel-concrete composite floors enables
structure reuse during several life cycles, consequently leading to savings in material
consumption and reduction of emissions, providing overall ecological benefits.
The behaviour of the innovative demountable beam with a shear connection consisting
of headed studs and bolts is analysed in this paper. The proposed beam is
formed of a steel profile and a steel-concrete composite slab cast in open trough
profiled steel sheeting. Headed studs, welded to the additional steel angles, are
placed in sheeting ribs, whereas bolts are installed between ribs, connecting the
steel angles and profile flange. A numerical FE model of a full-scale steel-concrete
composite beam has been developed to analyse the beam behaviour under service
loads. Experimental results of push-out tests have been used to describe the loadslip
behaviour of headed studs, whereas bolt response has been simulated according
to the experimental investigations of lap joints with preloaded bolts and oversize
holes. The parametric study has been conducted by varying the bolt diameter, grade
and bolt hole size. The results have validated the applicability of the proposed system,
confirming the fulfilment of serviceability limit state requirements.",
publisher = "Ernst & Sohn GmbH",
journal = "ce/papers",
title = "Behaviour of demountable steel-concrete composite beams with bolts and headed studs",
pages = "89-84",
number = "3-4",
volume = "6",
doi = "10.1002/cepa.2399"
}

Jakovljević, I., Spremić, M., Fric, N.,& Marković, Z.. (2023). Behaviour of demountable steel-concrete composite beams with bolts and headed studs. in ce/papers
Ernst & Sohn GmbH., 6(3-4), 84-89.
https://doi.org/10.1002/cepa.2399

Jakovljević I, Spremić M, Fric N, Marković Z. Behaviour of demountable steel-concrete composite beams with bolts and headed studs. in ce/papers. 2023;6(3-4):84-89.
doi:10.1002/cepa.2399 .

Jakovljević, Isidora, Spremić, Milan, Fric, Nenad, Marković, Zlatko, "Behaviour of demountable steel-concrete composite beams with bolts and headed studs" in ce/papers, 6, no. 3-4 (2023):84-89,
https://doi.org/10.1002/cepa.2399 . .

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 .

TY  - GEN
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3018
T1  - Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom
T1  - Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom [Novo tehničko rešenje (nije komercijalizovano)]
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3018
ER  - 

@misc{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2022",
title = "Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom, Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom [Novo tehničko rešenje (nije komercijalizovano)]",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3018"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2022). Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom. .
https://hdl.handle.net/21.15107/rcub_grafar_3018

Jakovljević I, Spremić M, Marković Z. Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3018 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Demontažni smičući spoj sa zavrtnjevima i moždanicima sa glavom" (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3018 .

TY  - JOUR
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2022
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2787
AB  - Multi-storey car park buildings with steel–concrete composite floor structures are widespread in construction due to the distinct benefits of the implemented structural system. Although there are various possibilities for accomplishing composite action between a steel beam and a concrete slab, some solutions, such as friction-grip bolts commonly applied in the 1970s, did not show good durability. An example is the multi-storey car park building “Obilićev venac” in Belgrade. This case study presents two methods for life extension of the car park building structure. Both approaches focus on applying welded headed studs with the primary intention of providing a durable shear connection. While the first method has been applied during the structure’s reconstruction, the second method is proposed as a novel solution for implementation in steel–concrete composite floors. The application of the proposed connection is discussed and the results of the experimental and numerical research conducted are presented.
PB  - Taylor and Francis
T2  - Structural Engineering International
T1  - Methods for Life Extension of Multi-Storey Car Park Buildings
EP  - 324
IS  - 2
SP  - 314
VL  - 33
DO  - doi.org/10.1080/10168664.2022.2073318
ER  - 

@article{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2022, 2023",
abstract = "Multi-storey car park buildings with steel–concrete composite floor structures are widespread in construction due to the distinct benefits of the implemented structural system. Although there are various possibilities for accomplishing composite action between a steel beam and a concrete slab, some solutions, such as friction-grip bolts commonly applied in the 1970s, did not show good durability. An example is the multi-storey car park building “Obilićev venac” in Belgrade. This case study presents two methods for life extension of the car park building structure. Both approaches focus on applying welded headed studs with the primary intention of providing a durable shear connection. While the first method has been applied during the structure’s reconstruction, the second method is proposed as a novel solution for implementation in steel–concrete composite floors. The application of the proposed connection is discussed and the results of the experimental and numerical research conducted are presented.",
publisher = "Taylor and Francis",
journal = "Structural Engineering International",
title = "Methods for Life Extension of Multi-Storey Car Park Buildings",
pages = "324-314",
number = "2",
volume = "33",
doi = "doi.org/10.1080/10168664.2022.2073318"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2022). Methods for Life Extension of Multi-Storey Car Park Buildings. in Structural Engineering International
Taylor and Francis., 33(2), 314-324.
https://doi.org/doi.org/10.1080/10168664.2022.2073318

Jakovljević I, Spremić M, Marković Z. Methods for Life Extension of Multi-Storey Car Park Buildings. in Structural Engineering International. 2022;33(2):314-324.
doi:doi.org/10.1080/10168664.2022.2073318 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Methods for Life Extension of Multi-Storey Car Park Buildings" in Structural Engineering International, 33, no. 2 (2022):314-324,
https://doi.org/doi.org/10.1080/10168664.2022.2073318 . .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Gluhović, Nina
AU  - Marković, Zlatko
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2789
AB  - Headed studs are the most commonly used mechanical shear connectors in composite steel-concrete beams. The behaviour of headed studs differs whether they are applied in solid concrete slabs or composite steel-concrete slabs with profiled steel sheeting. Although design codes provide calculation models for shear resistance of headed studs in profiled steel sheeting, certain weaknesses are attributed to design procedures given in EN 1994-1-1. Alternative design models have been proposed by several researchers. In this paper, novel models are presented and compared through the example of headed studs in different types of profiled steel sheeting.
AB  - Moždanici sa glavom su najčešće primenjivana mehanička spojna sredstava u spregnutim gredama od čelika i betona. Ponašanje moždanika razlikuje se u zavisnosti od toga da li se primenjuju u punim betonskim pločama ili u spregnutim pločama na profilisanom limu. Iako su proračunski modeli za nosivost moždanika u profilisanom limu dati u standardima za projektovanje, važećim proračunskim procedurama datim u EN 1994-1-1 pripisuju se izvesni nedostaci. Iz tog razloga nekoliko istraživača je predložilo alternativne proračunske modele. U radu su prikazani predloženi modeli proračuna i data je uporedna analiza nosivosti moždanika sa glavom u različitim tipovima profilisanog lima.
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress
T1  - Headed studs in profiled steel sheeting: Overview and comments
EP  - 561
SP  - 552
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2789
ER  - 

@conference{
author = "Jakovljević, Isidora and Spremić, Milan and Gluhović, Nina and Marković, Zlatko",
year = "2022",
abstract = "Headed studs are the most commonly used mechanical shear connectors in composite steel-concrete beams. The behaviour of headed studs differs whether they are applied in solid concrete slabs or composite steel-concrete slabs with profiled steel sheeting. Although design codes provide calculation models for shear resistance of headed studs in profiled steel sheeting, certain weaknesses are attributed to design procedures given in EN 1994-1-1. Alternative design models have been proposed by several researchers. In this paper, novel models are presented and compared through the example of headed studs in different types of profiled steel sheeting., Moždanici sa glavom su najčešće primenjivana mehanička spojna sredstava u spregnutim gredama od čelika i betona. Ponašanje moždanika razlikuje se u zavisnosti od toga da li se primenjuju u punim betonskim pločama ili u spregnutim pločama na profilisanom limu. Iako su proračunski modeli za nosivost moždanika u profilisanom limu dati u standardima za projektovanje, važećim proračunskim procedurama datim u EN 1994-1-1 pripisuju se izvesni nedostaci. Iz tog razloga nekoliko istraživača je predložilo alternativne proračunske modele. U radu su prikazani predloženi modeli proračuna i data je uporedna analiza nosivosti moždanika sa glavom u različitim tipovima profilisanog lima.",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress",
title = "Headed studs in profiled steel sheeting: Overview and comments",
pages = "561-552",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2789"
}

Jakovljević, I., Spremić, M., Gluhović, N.,& Marković, Z.. (2022). Headed studs in profiled steel sheeting: Overview and comments. in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress
Društvo građevinskih konstruktera Srbije, Beograd., 552-561.
https://hdl.handle.net/21.15107/rcub_grafar_2789

Jakovljević I, Spremić M, Gluhović N, Marković Z. Headed studs in profiled steel sheeting: Overview and comments. in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress. 2022;:552-561.
https://hdl.handle.net/21.15107/rcub_grafar_2789 .

Jakovljević, Isidora, Spremić, Milan, Gluhović, Nina, Marković, Zlatko, "Headed studs in profiled steel sheeting: Overview and comments" in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress (2022):552-561,
https://hdl.handle.net/21.15107/rcub_grafar_2789 .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Gluhović, Nina
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2786
AB  - For obtaining shear resistance of a welded headed stud in profiled steel sheeting, EN 1994-1-1:2004 defines reduction factors that should be multiplied with the resistance of a headed stud in a solid concrete slab. Two reduction factors are prescribed, for sheeting ribs that are parallel and transverse to the supporting beam. However, the design code does not recognise cases when the angle between ribs and the beam is in the range between 0° and 90°. This research is focused on the specific case in the steel-concrete composite beam design when the angle between profiled sheeting ribs and the beam is 45°. The experimental investigation has been conducted through push-out tests, comparing the response of the connection with a rib-to-beam angle of 45° and the connection with ribs transverse to the supporting beam. In addition, numerical models based on finite element analysis have been made and validated against experimental data. According to the obtained results, similar failure mechanisms manifested through concrete pull-out failure and separation of the concrete cone are observed in shear connections with rib-to-beam angles of 45° and 90°. An increase in the connection resistance is noticed with the decrease of a rib-to-beam angle.
PB  - Ernst & Sohn GmbH
C3  - ce/papers
T1  - Different Profiled Sheeting Configurations in Steel-Concrete Composite Beams
EP  - 799
IS  - 4
SP  - 795
VL  - 5
DO  - doi/10.1002/cepa.1821
ER  - 

@conference{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko and Gluhović, Nina",
year = "2022",
abstract = "For obtaining shear resistance of a welded headed stud in profiled steel sheeting, EN 1994-1-1:2004 defines reduction factors that should be multiplied with the resistance of a headed stud in a solid concrete slab. Two reduction factors are prescribed, for sheeting ribs that are parallel and transverse to the supporting beam. However, the design code does not recognise cases when the angle between ribs and the beam is in the range between 0° and 90°. This research is focused on the specific case in the steel-concrete composite beam design when the angle between profiled sheeting ribs and the beam is 45°. The experimental investigation has been conducted through push-out tests, comparing the response of the connection with a rib-to-beam angle of 45° and the connection with ribs transverse to the supporting beam. In addition, numerical models based on finite element analysis have been made and validated against experimental data. According to the obtained results, similar failure mechanisms manifested through concrete pull-out failure and separation of the concrete cone are observed in shear connections with rib-to-beam angles of 45° and 90°. An increase in the connection resistance is noticed with the decrease of a rib-to-beam angle.",
publisher = "Ernst & Sohn GmbH",
journal = "ce/papers",
title = "Different Profiled Sheeting Configurations in Steel-Concrete Composite Beams",
pages = "799-795",
number = "4",
volume = "5",
doi = "doi/10.1002/cepa.1821"
}

Jakovljević, I., Spremić, M., Marković, Z.,& Gluhović, N.. (2022). Different Profiled Sheeting Configurations in Steel-Concrete Composite Beams. in ce/papers
Ernst & Sohn GmbH., 5(4), 795-799.
https://doi.org/doi/10.1002/cepa.1821

Jakovljević I, Spremić M, Marković Z, Gluhović N. Different Profiled Sheeting Configurations in Steel-Concrete Composite Beams. in ce/papers. 2022;5(4):795-799.
doi:doi/10.1002/cepa.1821 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, Gluhović, Nina, "Different Profiled Sheeting Configurations in Steel-Concrete Composite Beams" in ce/papers, 5, no. 4 (2022):795-799,
https://doi.org/doi/10.1002/cepa.1821 . .

TY  - CONF
AU  - Spremić, Milan
AU  - Jakovljević, Isidora
AU  - Dinčić, Nemanja
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2788
AB  - Reconstruction of the Sava Centre in Belgrade, a cultural good of the Republic of Serbia, includes works on the facility, ensuring that the congress centre's construction meets all modern requirements for fire protection. The paper presents the design fires used to conduct fire resistance design of the steel structure of the roof and facade. By applying analytical procedures defined in Eurocodes for structures and performing advanced CFD analysis, it has been shown that most of the purlins in Building A of the Sava Centre satisfy the required 60 minutes of fire resistance. This paper also presents the calculation of the fire loads applied in design fires.
AB  - Rekonstrukcija Sava Centra u Beogradu, kulturnog dobra Republike Srbije, podrazumeva radove na objektu, koji moraju da obezbede da konstrukcija kongresnog centra ispunjava sve savremene zahteve protivpožarne zaštite. U radu su prikazni proračunski požari korišćeni za dokaz otpornosti na dejstvo požara čelične konstrukcije krova i fasade. Primenom analitičkih postupaka definisanih u Evrokodovima za konstrukcije i napredne CFD analize pokazano je da veći deo rožnjača u bloka A Sava Centra zadovoljava nosivost pri dejstvu požara u trajanju od 60 minuta. Sračunavanje požarnih opterećenja pri definisanju proračunskih požara takođe je prikazano u ovom radu.
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress
T1  - Design fire load of the roof and facade steel structure - Reconstruction of the Sava Centre
EP  - 283
SP  - 274
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2788
ER  - 

@conference{
author = "Spremić, Milan and Jakovljević, Isidora and Dinčić, Nemanja",
year = "2022",
abstract = "Reconstruction of the Sava Centre in Belgrade, a cultural good of the Republic of Serbia, includes works on the facility, ensuring that the congress centre's construction meets all modern requirements for fire protection. The paper presents the design fires used to conduct fire resistance design of the steel structure of the roof and facade. By applying analytical procedures defined in Eurocodes for structures and performing advanced CFD analysis, it has been shown that most of the purlins in Building A of the Sava Centre satisfy the required 60 minutes of fire resistance. This paper also presents the calculation of the fire loads applied in design fires., Rekonstrukcija Sava Centra u Beogradu, kulturnog dobra Republike Srbije, podrazumeva radove na objektu, koji moraju da obezbede da konstrukcija kongresnog centra ispunjava sve savremene zahteve protivpožarne zaštite. U radu su prikazni proračunski požari korišćeni za dokaz otpornosti na dejstvo požara čelične konstrukcije krova i fasade. Primenom analitičkih postupaka definisanih u Evrokodovima za konstrukcije i napredne CFD analize pokazano je da veći deo rožnjača u bloka A Sava Centra zadovoljava nosivost pri dejstvu požara u trajanju od 60 minuta. Sračunavanje požarnih opterećenja pri definisanju proračunskih požara takođe je prikazano u ovom radu.",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress",
title = "Design fire load of the roof and facade steel structure - Reconstruction of the Sava Centre",
pages = "283-274",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2788"
}

Spremić, M., Jakovljević, I.,& Dinčić, N.. (2022). Design fire load of the roof and facade steel structure - Reconstruction of the Sava Centre. in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress
Društvo građevinskih konstruktera Srbije, Beograd., 274-283.
https://hdl.handle.net/21.15107/rcub_grafar_2788

Spremić M, Jakovljević I, Dinčić N. Design fire load of the roof and facade steel structure - Reconstruction of the Sava Centre. in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress. 2022;:274-283.
https://hdl.handle.net/21.15107/rcub_grafar_2788 .

Spremić, Milan, Jakovljević, Isidora, Dinčić, Nemanja, "Design fire load of the roof and facade steel structure - Reconstruction of the Sava Centre" in International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress (2022):274-283,
https://hdl.handle.net/21.15107/rcub_grafar_2788 .

TY  - CONF
AU  - Spremić, Milan
AU  - Zlatko, Marković
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2945
AB  - Eurocode introduces innovations in the design of steel structures that create new opportunities for
designers and contractors to construct more attractive and cost-effective structures. The paper present a new approach to designing steel structures based on advanced methods defined in Eurocode. These methods were not recognised by the old ex Yugoslav steel structures codes. Advanced numerical simulations are a powerful tool that helps engineers understand the deformation and stresses of the structure in detail. Possibilities of high-end design software in the application of GMNIA (Geometrically and Materially Nonlinear Analysis with Imperfections) in the design of complex elements of steel structures will be demonstrated. The authors will illustrate the application of finite element methods of analysis based on Eurocode on practical examples. Buckling limit state and calculation of design resistance of the cylindrical shell with the opening will be shown. On the example of a pedestrian bridge, the stability of plated structural members with web opening will be analysed. The examples of steel girder frames will illustrate the application of global and local imperfections in calculating the design resistance of the structural steel members. The comparison between methods for the design of frame structure is done on the example of the two-storey frame structure. The paper briefly reviews the most important novelties brought about by Eurocode 3 for steel structures. A review of the new advanced design methods in the next edition of the Eurocode for steel structures will be given.
PB  - Macedonian association of structural engineers
C3  - Proceedings of the 19th international symposium of MASE, 15-18 September 2021, Ohrid
T1  - Advance design methods of steel structurs based on Eurocode 3
SP  - 177/IP-8
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2945
ER  - 

@conference{
author = "Spremić, Milan and Zlatko, Marković",
year = "2022",
abstract = "Eurocode introduces innovations in the design of steel structures that create new opportunities for
designers and contractors to construct more attractive and cost-effective structures. The paper present a new approach to designing steel structures based on advanced methods defined in Eurocode. These methods were not recognised by the old ex Yugoslav steel structures codes. Advanced numerical simulations are a powerful tool that helps engineers understand the deformation and stresses of the structure in detail. Possibilities of high-end design software in the application of GMNIA (Geometrically and Materially Nonlinear Analysis with Imperfections) in the design of complex elements of steel structures will be demonstrated. The authors will illustrate the application of finite element methods of analysis based on Eurocode on practical examples. Buckling limit state and calculation of design resistance of the cylindrical shell with the opening will be shown. On the example of a pedestrian bridge, the stability of plated structural members with web opening will be analysed. The examples of steel girder frames will illustrate the application of global and local imperfections in calculating the design resistance of the structural steel members. The comparison between methods for the design of frame structure is done on the example of the two-storey frame structure. The paper briefly reviews the most important novelties brought about by Eurocode 3 for steel structures. A review of the new advanced design methods in the next edition of the Eurocode for steel structures will be given.",
publisher = "Macedonian association of structural engineers",
journal = "Proceedings of the 19th international symposium of MASE, 15-18 September 2021, Ohrid",
title = "Advance design methods of steel structurs based on Eurocode 3",
pages = "177/IP-8",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2945"
}

Spremić, M.,& Zlatko, M.. (2022). Advance design methods of steel structurs based on Eurocode 3. in Proceedings of the 19th international symposium of MASE, 15-18 September 2021, Ohrid
Macedonian association of structural engineers., 177/IP-8.
https://hdl.handle.net/21.15107/rcub_grafar_2945

Spremić M, Zlatko M. Advance design methods of steel structurs based on Eurocode 3. in Proceedings of the 19th international symposium of MASE, 15-18 September 2021, Ohrid. 2022;:177/IP-8.
https://hdl.handle.net/21.15107/rcub_grafar_2945 .

Spremić, Milan, Zlatko, Marković, "Advance design methods of steel structurs based on Eurocode 3" in Proceedings of the 19th international symposium of MASE, 15-18 September 2021, Ohrid (2022):177/IP-8,
https://hdl.handle.net/21.15107/rcub_grafar_2945 .

TY  - JOUR
AU  - Ramul, Adam
AU  - Spremić, Milan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2489
AB  - Modern conustructions of pedestrian bridges must satisfy functional and 
increasingly complex architectural requirements. In order to achieve the attractive 
design of pedestrian bridges, modern constructions generally differ from older, 
conventional solutions. The vibration problem of such structures shows that the 
dynamic response of the structure is governing for the design. This paper presents 
the comparative analysis of several dynamic models of pedestrian loads, described 
in various standards, guidelines, and recommendations. On the example of an 
arched pedestrian bridge, comparative analysis of the structure behavior due to the 
effect of pedestrian load was performed using numerical simulations in the 
SOFISTIK software, with the results obtained by analytical calculation procedures.
PB  - Society for Materials and Structures Testing of Serbia
T2  - Građevinski materijali i konstrukcije
T1  - Vibration serviceability limit state of pedestrian bridges
EP  - 183
IS  - 3
SP  - 177
VL  - 64
DO  - 10.5937/GRMK2103177R
ER  - 

@article{
author = "Ramul, Adam and Spremić, Milan",
year = "2021",
abstract = "Modern conustructions of pedestrian bridges must satisfy functional and 
increasingly complex architectural requirements. In order to achieve the attractive 
design of pedestrian bridges, modern constructions generally differ from older, 
conventional solutions. The vibration problem of such structures shows that the 
dynamic response of the structure is governing for the design. This paper presents 
the comparative analysis of several dynamic models of pedestrian loads, described 
in various standards, guidelines, and recommendations. On the example of an 
arched pedestrian bridge, comparative analysis of the structure behavior due to the 
effect of pedestrian load was performed using numerical simulations in the 
SOFISTIK software, with the results obtained by analytical calculation procedures.",
publisher = "Society for Materials and Structures Testing of Serbia",
journal = "Građevinski materijali i konstrukcije",
title = "Vibration serviceability limit state of pedestrian bridges",
pages = "183-177",
number = "3",
volume = "64",
doi = "10.5937/GRMK2103177R"
}

Ramul, A.,& Spremić, M.. (2021). Vibration serviceability limit state of pedestrian bridges. in Građevinski materijali i konstrukcije
Society for Materials and Structures Testing of Serbia., 64(3), 177-183.
https://doi.org/10.5937/GRMK2103177R

Ramul A, Spremić M. Vibration serviceability limit state of pedestrian bridges. in Građevinski materijali i konstrukcije. 2021;64(3):177-183.
doi:10.5937/GRMK2103177R .

Ramul, Adam, Spremić, Milan, "Vibration serviceability limit state of pedestrian bridges" in Građevinski materijali i konstrukcije, 64, no. 3 (2021):177-183,
https://doi.org/10.5937/GRMK2103177R . .

TY  - CONF
AU  - Spremić, Milan
AU  - Gluhović, Nina
AU  - Jakovljević, Isidora
AU  - Marković, Zlatko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2488
AB  - During the assembling of a steel structure with anchors, grout should be used in connections be-
tween steel elements and a reinforced concrete support element. In horizontal and vertical joints, 
grout is used as a good construction practice for solving geometric tolerance problems. Grout can 
be used with cast-in anchors or post-installed anchors. However, the relation between anchor 
shear resistance and characteristic grout compressive strength is not described in detail in tech-
nical regulations. The behaviour of a connection considering achieved slip tolerances should 
match the boundary conditions set in the global analysis. In the support joint, grout properties 
could influence the value of the slip between a steel part and a concrete part of the joint.  Slip value 
could be significant for the relevant design cases featuring the interaction of shear force and ten-
sion force. In this paper, results of the push-out test conducted on anchors are presented. Based 
on the experimental test, the finite element analysis was performed to investigate the shear con-
nection behaviour. According to the preliminary results, it can be concluded that a grout strength 
and a grout thickness influence the connection response when serviceability loads are applied, alt-
hough they do not influence the ultimate load bearing capacity of anchors. In some cases, using 
the contemporary solutions of high strength grout materials, the slip between steel and concrete 
parts in the connection could be reduced.
PB  - Ernst&Sohn
C3  - CE/Papers
T1  - The Behaviour of Shear Anchors with Different  Grout Properties
EP  - 950
IS  - 2-4
SP  - 945
VL  - 4
DO  - https://doi.org/10.1002/cepa.1382
ER  - 

@conference{
author = "Spremić, Milan and Gluhović, Nina and Jakovljević, Isidora and Marković, Zlatko",
year = "2021",
abstract = "During the assembling of a steel structure with anchors, grout should be used in connections be-
tween steel elements and a reinforced concrete support element. In horizontal and vertical joints, 
grout is used as a good construction practice for solving geometric tolerance problems. Grout can 
be used with cast-in anchors or post-installed anchors. However, the relation between anchor 
shear resistance and characteristic grout compressive strength is not described in detail in tech-
nical regulations. The behaviour of a connection considering achieved slip tolerances should 
match the boundary conditions set in the global analysis. In the support joint, grout properties 
could influence the value of the slip between a steel part and a concrete part of the joint.  Slip value 
could be significant for the relevant design cases featuring the interaction of shear force and ten-
sion force. In this paper, results of the push-out test conducted on anchors are presented. Based 
on the experimental test, the finite element analysis was performed to investigate the shear con-
nection behaviour. According to the preliminary results, it can be concluded that a grout strength 
and a grout thickness influence the connection response when serviceability loads are applied, alt-
hough they do not influence the ultimate load bearing capacity of anchors. In some cases, using 
the contemporary solutions of high strength grout materials, the slip between steel and concrete 
parts in the connection could be reduced.",
publisher = "Ernst&Sohn",
journal = "CE/Papers",
title = "The Behaviour of Shear Anchors with Different  Grout Properties",
pages = "950-945",
number = "2-4",
volume = "4",
doi = "https://doi.org/10.1002/cepa.1382"
}

Spremić, M., Gluhović, N., Jakovljević, I.,& Marković, Z.. (2021). The Behaviour of Shear Anchors with Different  Grout Properties. in CE/Papers
Ernst&Sohn., 4(2-4), 945-950.
https://doi.org/https://doi.org/10.1002/cepa.1382

Spremić M, Gluhović N, Jakovljević I, Marković Z. The Behaviour of Shear Anchors with Different  Grout Properties. in CE/Papers. 2021;4(2-4):945-950.
doi:https://doi.org/10.1002/cepa.1382 .

Spremić, Milan, Gluhović, Nina, Jakovljević, Isidora, Marković, Zlatko, "The Behaviour of Shear Anchors with Different  Grout Properties" in CE/Papers, 4, no. 2-4 (2021):945-950,
https://doi.org/https://doi.org/10.1002/cepa.1382 . .

TY  - JOUR
AU  - Gluhović, Nina
AU  - Marković, Zlatko
AU  - Spremić, Milan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2350
AB  - Human perception of floor vibrations and uncompromised serviceability of equipment are two most important acceptability criteria considering floor vibrations. While verification of deflection is a simple and well-known procedure in structures’ design for serviceability limit state, the fulfilment of floor vibrations acceptability criteria are presented in different standards in the form of various calculation procedures. Results achieved through those calculation procedures are presented in the form of various classification of floor structures. Classification of composite floor structures due to vibrations is inconsistent considering different calculation procedures. Comparison of various calculation procedures for the definition of composite floor vibrations is presented in this paper. In addition, a parametric analysis is performed on the wide range of steel-concrete composite floor structures, through analysis of various composite floor layouts and a wide range of imposed
loads values. The analysis of the relation between deflection, vertical vibrations and accelerations of steel-concrete composite floor beams is presented in this paper. The results of the parametric analysis are given through direct relation between deflections of composite beams and achieved floor class for the fulfilment of vibrations acceptability criteria due to the pedestrian walking.
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  - Numerical parametric study on steel-concrete composite floor beams vibrations due to pedestrian traffic
EP  - 58
IS  - 1
SP  - 45
VL  - 64
DO  - 10.5937/GRMK2101045G
ER  - 

@article{
author = "Gluhović, Nina and Marković, Zlatko and Spremić, Milan",
year = "2021",
abstract = "Human perception of floor vibrations and uncompromised serviceability of equipment are two most important acceptability criteria considering floor vibrations. While verification of deflection is a simple and well-known procedure in structures’ design for serviceability limit state, the fulfilment of floor vibrations acceptability criteria are presented in different standards in the form of various calculation procedures. Results achieved through those calculation procedures are presented in the form of various classification of floor structures. Classification of composite floor structures due to vibrations is inconsistent considering different calculation procedures. Comparison of various calculation procedures for the definition of composite floor vibrations is presented in this paper. In addition, a parametric analysis is performed on the wide range of steel-concrete composite floor structures, through analysis of various composite floor layouts and a wide range of imposed
loads values. The analysis of the relation between deflection, vertical vibrations and accelerations of steel-concrete composite floor beams is presented in this paper. The results of the parametric analysis are given through direct relation between deflections of composite beams and achieved floor class for the fulfilment of vibrations acceptability criteria due to the pedestrian walking.",
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 = "Numerical parametric study on steel-concrete composite floor beams vibrations due to pedestrian traffic",
pages = "58-45",
number = "1",
volume = "64",
doi = "10.5937/GRMK2101045G"
}

Gluhović, N., Marković, Z.,& Spremić, M.. (2021). Numerical parametric study on steel-concrete composite floor beams vibrations due to pedestrian traffic. in Građevinski materijali i konstrukcije Building Materials and Structures
Society for Materials and Structures Testing of Serbia., 64(1), 45-58.
https://doi.org/10.5937/GRMK2101045G

Gluhović N, Marković Z, Spremić M. Numerical parametric study on steel-concrete composite floor beams vibrations due to pedestrian traffic. in Građevinski materijali i konstrukcije Building Materials and Structures. 2021;64(1):45-58.
doi:10.5937/GRMK2101045G .

Gluhović, Nina, Marković, Zlatko, Spremić, Milan, "Numerical parametric study on steel-concrete composite floor beams vibrations due to pedestrian traffic" in Građevinski materijali i konstrukcije Building Materials and Structures, 64, no. 1 (2021):45-58,
https://doi.org/10.5937/GRMK2101045G . .

TY  - CONF
AU  - Denić, Uroš
AU  - Spremić, Milan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2946
AB  - This paper will focus on fixed roof storage tanks and its sub-category cone roof tanks. Paper presents major factors and outputs of tank design process. Theoretical analysis is done for a cone roof tank model and correlation between tank surface, shell thickness and total steel weight used. Detailed algorithm for tank design was realized using MathCAD software using Eurocode standards. Using this algorithm, 432 hypothetical tanks were designed. Data analysis of the collected output data was analysed using R statistics programming language. Using regression models and testing them led to the optimum statistical model.
For the purpose of this work, data for 21 real world tanks including fixed roof and floating roof tanks were collected. The data was collected with help of MOL, INA and few other EPC contractors. Paper compares real world data with outputs of the model.
Model can be used for quick estimates and control of material consumptions. Taking few input parameters and applying minimal effort can lead to a very accurate steel consumption prediction. With additional real-world data, acceptable ranges of deviation from the mean could be set-up. Thus, allowing for better control on Client part or EPC companies.
PB  - Wiley / Ernst & Sohn GmbH
C3  - CE/Papers
T1  - Steel Structure Prediction Model for Fixed Roof Oil Tanks
IS  - 4
IS  - 2-4
SP  - 2375-2381
DO  - 10.1002/cepa.1563
ER  - 

@conference{
author = "Denić, Uroš and Spremić, Milan",
year = "2021",
abstract = "This paper will focus on fixed roof storage tanks and its sub-category cone roof tanks. Paper presents major factors and outputs of tank design process. Theoretical analysis is done for a cone roof tank model and correlation between tank surface, shell thickness and total steel weight used. Detailed algorithm for tank design was realized using MathCAD software using Eurocode standards. Using this algorithm, 432 hypothetical tanks were designed. Data analysis of the collected output data was analysed using R statistics programming language. Using regression models and testing them led to the optimum statistical model.
For the purpose of this work, data for 21 real world tanks including fixed roof and floating roof tanks were collected. The data was collected with help of MOL, INA and few other EPC contractors. Paper compares real world data with outputs of the model.
Model can be used for quick estimates and control of material consumptions. Taking few input parameters and applying minimal effort can lead to a very accurate steel consumption prediction. With additional real-world data, acceptable ranges of deviation from the mean could be set-up. Thus, allowing for better control on Client part or EPC companies.",
publisher = "Wiley / Ernst & Sohn GmbH",
journal = "CE/Papers",
title = "Steel Structure Prediction Model for Fixed Roof Oil Tanks",
number = "4, 2-4",
pages = "2375-2381",
doi = "10.1002/cepa.1563"
}

Denić, U.,& Spremić, M.. (2021). Steel Structure Prediction Model for Fixed Roof Oil Tanks. in CE/Papers
Wiley / Ernst & Sohn GmbH.(4), 2375-2381.
https://doi.org/10.1002/cepa.1563

Denić U, Spremić M. Steel Structure Prediction Model for Fixed Roof Oil Tanks. in CE/Papers. 2021;(4):2375-2381.
doi:10.1002/cepa.1563 .

Denić, Uroš, Spremić, Milan, "Steel Structure Prediction Model for Fixed Roof Oil Tanks" in CE/Papers, no. 4 (2021):2375-2381,
https://doi.org/10.1002/cepa.1563 . .

TY  - JOUR
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2361
AB  - In keeping with current demands for sustainable development in all segments of the industry, numerous research in the field of steel-concrete composite structures has been focused on developing demountable shear connectors. In the past years, various demountable shear connectors have been suggested, with various mechanisms for transferring shear force between a steel profile and a concrete or composite slab. In this paper, a state of the art on the topic is given, and experimental and numerical research results of push-out and beam tests are summarized.
AB  - U skladu sa zahtjevima za održivi razvoj u svim segmentima industrije, brojna su istraživanja u području spregnutih čelično-betonskih konstrukcija usmjerena na razvoj demontažnih sredstava za sprezanje. Proteklih godina predlagana su različita demontažna sredstva za sprezanje koja su različitim mehanizmima prenosila posmičnu silu između čeličnog profila i betonske ili spregnute ploče. U ovom radu prikazana su najnovija dostignuća na tu temu dajući sažetke eksperimentalnih i numeričkih rezultata istraživanja vezano uz potisna (push-out) ispitivanja i ispitivanja na nosačima.
T2  - Građevinar
T1  - Demountable composite steel-concrete floors: A state-of-the-art review
T1  - Demontažne spregnute međukatne konstrukcije od čelika i betona: pregled najnovijih izvedbi
EP  - 263
IS  - 3
SP  - 249
VL  - 73
DO  - 10.14256/JCE.2932.2020
ER  - 

@article{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2021",
abstract = "In keeping with current demands for sustainable development in all segments of the industry, numerous research in the field of steel-concrete composite structures has been focused on developing demountable shear connectors. In the past years, various demountable shear connectors have been suggested, with various mechanisms for transferring shear force between a steel profile and a concrete or composite slab. In this paper, a state of the art on the topic is given, and experimental and numerical research results of push-out and beam tests are summarized., U skladu sa zahtjevima za održivi razvoj u svim segmentima industrije, brojna su istraživanja u području spregnutih čelično-betonskih konstrukcija usmjerena na razvoj demontažnih sredstava za sprezanje. Proteklih godina predlagana su različita demontažna sredstva za sprezanje koja su različitim mehanizmima prenosila posmičnu silu između čeličnog profila i betonske ili spregnute ploče. U ovom radu prikazana su najnovija dostignuća na tu temu dajući sažetke eksperimentalnih i numeričkih rezultata istraživanja vezano uz potisna (push-out) ispitivanja i ispitivanja na nosačima.",
journal = "Građevinar",
title = "Demountable composite steel-concrete floors: A state-of-the-art review, Demontažne spregnute međukatne konstrukcije od čelika i betona: pregled najnovijih izvedbi",
pages = "263-249",
number = "3",
volume = "73",
doi = "10.14256/JCE.2932.2020"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2021). Demountable composite steel-concrete floors: A state-of-the-art review. in Građevinar, 73(3), 249-263.
https://doi.org/10.14256/JCE.2932.2020

Jakovljević I, Spremić M, Marković Z. Demountable composite steel-concrete floors: A state-of-the-art review. in Građevinar. 2021;73(3):249-263.
doi:10.14256/JCE.2932.2020 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Demountable composite steel-concrete floors: A state-of-the-art review" in Građevinar, 73, no. 3 (2021):249-263,
https://doi.org/10.14256/JCE.2932.2020 . .

TY  - CONF
AU  - Spremić, Milan
AU  - Gluhović, Nina
AU  - Jakovljević, Isidora
AU  - Marković, Zlatko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2359
AB  - Prefabricated construction and requirements for reusing the particular structural element, request the application of a support joint realized with anchors. Besides demountability, the connection detail realized with anchors needs to satisfy all support conditions adopted during the structure design. This paper describes the behaviour of anchor shear connection. The connection slip was analysed concerning the grout material properties and the grout thickness. The parametric study was performed using Abaqus software to define the relationship between grout properties and thickness and the slip deformation for load levels corresponding to serviceability limit states.
PB  - Univerzitet u Beogradu, Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - ASES International symposium proceedings
T1  - Grout effect on the behaviour of the anchor shear connection
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2359
ER  - 

@conference{
author = "Spremić, Milan and Gluhović, Nina and Jakovljević, Isidora and Marković, Zlatko",
year = "2021",
abstract = "Prefabricated construction and requirements for reusing the particular structural element, request the application of a support joint realized with anchors. Besides demountability, the connection detail realized with anchors needs to satisfy all support conditions adopted during the structure design. This paper describes the behaviour of anchor shear connection. The connection slip was analysed concerning the grout material properties and the grout thickness. The parametric study was performed using Abaqus software to define the relationship between grout properties and thickness and the slip deformation for load levels corresponding to serviceability limit states.",
publisher = "Univerzitet u Beogradu, Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "ASES International symposium proceedings",
title = "Grout effect on the behaviour of the anchor shear connection",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2359"
}

Spremić, M., Gluhović, N., Jakovljević, I.,& Marković, Z.. (2021). Grout effect on the behaviour of the anchor shear connection. in ASES International symposium proceedings
Univerzitet u Beogradu, Građevinski fakultet..
https://hdl.handle.net/21.15107/rcub_grafar_2359

Spremić M, Gluhović N, Jakovljević I, Marković Z. Grout effect on the behaviour of the anchor shear connection. in ASES International symposium proceedings. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2359 .

Spremić, Milan, Gluhović, Nina, Jakovljević, Isidora, Marković, Zlatko, "Grout effect on the behaviour of the anchor shear connection" in ASES International symposium proceedings (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2359 .

TY  - CONF
AU  - Jakovljević, Isidora
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2360
AB  - In the past decades, many novel shear connectors for implementation in steel-concrete composite beams have been investigated. In this paper, a demountable shear connection between a structural steel beam and a solid concrete deck, consisting of bolts and welded headed studs, is analysed. This system features the indirect shear force transfer through the additional element, a steel plate that is placed between a concrete deck and a top flange. Following the experimental results of previously conducted push-out tests, a numerical model has been developed. The model is used for a detailed analysis of the system behaviour as well as for the parametric study. Influence of a bolt diameter and a bolt hole diameter on shear behaviour of the connection has been discussed.
AB  - Prethodnih decenija intenzivno su ispitivana nova rešenja spojnih sredstava u smičućim spojevima spregnutih greda od čelika i betona. U ovom radu analiziran je montažno-demontažni podužni smičući spoj konstrukcionog čelika i pune armiranobetonske ploče, ostvaren pomoću zavrtnjeva i elastičnih moždanika s glavom. Ovakav spoj odlikuje se indirektnim prenosom sile smicanja kroz dodatni element, čelični lim, između betonske ploče i gornje nožice grede. Formiran je numerički model testa smicanja prema dostupnim prethodnim eksperimentalnim ispitivanjima. Model je iskorišćen za detaljnu analizu ponašanja podužnog smičućeg spoja, kao i za parametarsku analizu. Ispitivan je uticaj prečnika zavrtnja i prečnika rupe na ponašanje spoja pri smičućem opterećenju.
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress, May 13-15th, 2021, Aranđelovac
T1  - Numerical study on the composite shear connection with bolts and welded headed studs
EP  - 472
SP  - 463
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2360
ER  - 

@conference{
author = "Jakovljević, Isidora and Spremić, Milan and Marković, Zlatko",
year = "2021",
abstract = "In the past decades, many novel shear connectors for implementation in steel-concrete composite beams have been investigated. In this paper, a demountable shear connection between a structural steel beam and a solid concrete deck, consisting of bolts and welded headed studs, is analysed. This system features the indirect shear force transfer through the additional element, a steel plate that is placed between a concrete deck and a top flange. Following the experimental results of previously conducted push-out tests, a numerical model has been developed. The model is used for a detailed analysis of the system behaviour as well as for the parametric study. Influence of a bolt diameter and a bolt hole diameter on shear behaviour of the connection has been discussed., Prethodnih decenija intenzivno su ispitivana nova rešenja spojnih sredstava u smičućim spojevima spregnutih greda od čelika i betona. U ovom radu analiziran je montažno-demontažni podužni smičući spoj konstrukcionog čelika i pune armiranobetonske ploče, ostvaren pomoću zavrtnjeva i elastičnih moždanika s glavom. Ovakav spoj odlikuje se indirektnim prenosom sile smicanja kroz dodatni element, čelični lim, između betonske ploče i gornje nožice grede. Formiran je numerički model testa smicanja prema dostupnim prethodnim eksperimentalnim ispitivanjima. Model je iskorišćen za detaljnu analizu ponašanja podužnog smičućeg spoja, kao i za parametarsku analizu. Ispitivan je uticaj prečnika zavrtnja i prečnika rupe na ponašanje spoja pri smičućem opterećenju.",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress, May 13-15th, 2021, Aranđelovac",
title = "Numerical study on the composite shear connection with bolts and welded headed studs",
pages = "472-463",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2360"
}

Jakovljević, I., Spremić, M.,& Marković, Z.. (2021). Numerical study on the composite shear connection with bolts and welded headed studs. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress, May 13-15th, 2021, Aranđelovac
Društvo građevinskih konstruktera Srbije, Beograd., 463-472.
https://hdl.handle.net/21.15107/rcub_grafar_2360

Jakovljević I, Spremić M, Marković Z. Numerical study on the composite shear connection with bolts and welded headed studs. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress, May 13-15th, 2021, Aranđelovac. 2021;:463-472.
https://hdl.handle.net/21.15107/rcub_grafar_2360 .

Jakovljević, Isidora, Spremić, Milan, Marković, Zlatko, "Numerical study on the composite shear connection with bolts and welded headed studs" in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress, May 13-15th, 2021, Aranđelovac (2021):463-472,
https://hdl.handle.net/21.15107/rcub_grafar_2360 .

TY  - JOUR
AU  - Gluhović, Nina
AU  - Marković, Zlatko
AU  - Spremić, Milan
AU  - Pavlović, Marko
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2077
AB  - Nowadays, in prefabricated composite construction, composite action between steel beam and concrete slab is often achieved with positioning of shear connectors in envisaged openings of concrete slabs. Prefabricated concrete slabs are used for composite steel-concrete buildings and bridges, both for the construction of new structures and for renovation of existing ones, significantly reducing construction time. Development of different types of shear connectors represent alternative solution to the traditionally used headed studs, considering their shear resistance, stiffness and ductility. New types of shear connectors tend to reduce the construction time and overall construction cost. Mechanically fastened shear connectors represent a viable alternative to headed studs, considering their fast installation process and shear resistance. X-HVB shear connectors are attached to the steel beam with two cartridge fired pins. The first step towards extensive implementation of X-HVB shear connectors in composite construction is to understand their behaviour through experimental investigation. Results of the push-out tests, in accordance to
Eurocode 4, with X-HVB 110 shear connectors positioned in envisaged openings of prefabricated concrete slabs are presented in this paper. The experimental investigation comprised three different specimen’s layout. Group arrangement of X-HVB shear connectors in envisaged openings included specimens with minimal recommended distances and specimens with reduced distances between connectors in both directions. Influence of different installation procedures on overall behaviour of the connection is presented, as well as the orientation of shear connectors relative to the shear force direction. Influence of variations is characterized in terms of failure mechanisms, shear resistance and ductility.
PB  - Techno Press
T2  - Steel and Composite Structures
T1  - Mechanically fastened shear connectors in prefabricated concrete slabs – experimental analysis
VL  - 36
DO  - 10.12989/scs.2020.36.4.369
ER  - 

@article{
author = "Gluhović, Nina and Marković, Zlatko and Spremić, Milan and Pavlović, Marko",
year = "2020",
abstract = "Nowadays, in prefabricated composite construction, composite action between steel beam and concrete slab is often achieved with positioning of shear connectors in envisaged openings of concrete slabs. Prefabricated concrete slabs are used for composite steel-concrete buildings and bridges, both for the construction of new structures and for renovation of existing ones, significantly reducing construction time. Development of different types of shear connectors represent alternative solution to the traditionally used headed studs, considering their shear resistance, stiffness and ductility. New types of shear connectors tend to reduce the construction time and overall construction cost. Mechanically fastened shear connectors represent a viable alternative to headed studs, considering their fast installation process and shear resistance. X-HVB shear connectors are attached to the steel beam with two cartridge fired pins. The first step towards extensive implementation of X-HVB shear connectors in composite construction is to understand their behaviour through experimental investigation. Results of the push-out tests, in accordance to
Eurocode 4, with X-HVB 110 shear connectors positioned in envisaged openings of prefabricated concrete slabs are presented in this paper. The experimental investigation comprised three different specimen’s layout. Group arrangement of X-HVB shear connectors in envisaged openings included specimens with minimal recommended distances and specimens with reduced distances between connectors in both directions. Influence of different installation procedures on overall behaviour of the connection is presented, as well as the orientation of shear connectors relative to the shear force direction. Influence of variations is characterized in terms of failure mechanisms, shear resistance and ductility.",
publisher = "Techno Press",
journal = "Steel and Composite Structures",
title = "Mechanically fastened shear connectors in prefabricated concrete slabs – experimental analysis",
volume = "36",
doi = "10.12989/scs.2020.36.4.369"
}

Gluhović, N., Marković, Z., Spremić, M.,& Pavlović, M.. (2020). Mechanically fastened shear connectors in prefabricated concrete slabs – experimental analysis. in Steel and Composite Structures
Techno Press., 36.
https://doi.org/10.12989/scs.2020.36.4.369

Gluhović N, Marković Z, Spremić M, Pavlović M. Mechanically fastened shear connectors in prefabricated concrete slabs – experimental analysis. in Steel and Composite Structures. 2020;36.
doi:10.12989/scs.2020.36.4.369 .

Gluhović, Nina, Marković, Zlatko, Spremić, Milan, Pavlović, Marko, "Mechanically fastened shear connectors in prefabricated concrete slabs – experimental analysis" in Steel and Composite Structures, 36 (2020),
https://doi.org/10.12989/scs.2020.36.4.369 . .

TY  - CONF
AU  - Filipović, Aljoša
AU  - Dobrić, Jelena
AU  - Marković, Zlatko A.
AU  - Spremić, Milan B.
AU  - Fric, Nenad
AU  - Baddoo, Nancy
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1964
AB  - This paper presents the experimental programme of an extensive research project that deals with analysing the behaviour of compressed stainless steel columns with equal angle sections. The research focuses on different material and geometrical parameters of pin-ended angle columns produced from austenitic and lean-duplex stainless steel alloys. To assess the influences of initial imperfections on column compressive resistance caused by different manufacturing procedures, three types of angle products are included: cold-formed, hot-rolled and laser-welded sections. In order to obtain both elastic and inelastic ultimate responses, including flexural and torsional-flexural buckling modes, the lengths and cross-section geometries of specimens are selected to cover non-slender sections and slender sections covering the entire wide slenderness range. The experimental programme covers all relevant tests: 15 tensile coupon tests, 15 stub-column tests, 48 overall buckling tests on slender columns and 2 residual stress
tests, including measurements of initial geometric imperfections. The purpose of these experiments is to provide a reliable database to determine design rules for angle members and extend the scope of procedures currently codified in EN 1993-1-4 (2015), not only to conventional angle profiles, but also to contemporary products such as laser-welded angles.
C3  - International Colloquium on Stability and Ductility of Steel Structures
T1  - Experimental investigation of compressed stainless steel angle columns
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1964
ER  - 

@conference{
author = "Filipović, Aljoša and Dobrić, Jelena and Marković, Zlatko A. and Spremić, Milan B. and Fric, Nenad and Baddoo, Nancy",
year = "2019",
abstract = "This paper presents the experimental programme of an extensive research project that deals with analysing the behaviour of compressed stainless steel columns with equal angle sections. The research focuses on different material and geometrical parameters of pin-ended angle columns produced from austenitic and lean-duplex stainless steel alloys. To assess the influences of initial imperfections on column compressive resistance caused by different manufacturing procedures, three types of angle products are included: cold-formed, hot-rolled and laser-welded sections. In order to obtain both elastic and inelastic ultimate responses, including flexural and torsional-flexural buckling modes, the lengths and cross-section geometries of specimens are selected to cover non-slender sections and slender sections covering the entire wide slenderness range. The experimental programme covers all relevant tests: 15 tensile coupon tests, 15 stub-column tests, 48 overall buckling tests on slender columns and 2 residual stress
tests, including measurements of initial geometric imperfections. The purpose of these experiments is to provide a reliable database to determine design rules for angle members and extend the scope of procedures currently codified in EN 1993-1-4 (2015), not only to conventional angle profiles, but also to contemporary products such as laser-welded angles.",
journal = "International Colloquium on Stability and Ductility of Steel Structures",
title = "Experimental investigation of compressed stainless steel angle columns",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1964"
}

Filipović, A., Dobrić, J., Marković, Z. A., Spremić, M. B., Fric, N.,& Baddoo, N.. (2019). Experimental investigation of compressed stainless steel angle columns. in International Colloquium on Stability and Ductility of Steel Structures.
https://hdl.handle.net/21.15107/rcub_grafar_1964

Filipović A, Dobrić J, Marković ZA, Spremić MB, Fric N, Baddoo N. Experimental investigation of compressed stainless steel angle columns. in International Colloquium on Stability and Ductility of Steel Structures. 2019;.
https://hdl.handle.net/21.15107/rcub_grafar_1964 .

Filipović, Aljoša, Dobrić, Jelena, Marković, Zlatko A., Spremić, Milan B., Fric, Nenad, Baddoo, Nancy, "Experimental investigation of compressed stainless steel angle columns" in International Colloquium on Stability and Ductility of Steel Structures (2019),
https://hdl.handle.net/21.15107/rcub_grafar_1964 .