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  - 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  - Hicks, Stephen
AU  - Braun, Matthias
AU  - Marković, Zlatko
AU  - Way, James
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3186
AB  - As members of  Project  Team SC4.T5, the authors of  this paper present  the main outcomes  from the  work that isintended  for implementation  within the  second  generation  of Eurocode  4.  General design and application  rules for composite design of precast concrete  elements  will be presented, with a particular focus on:  the effective  width  of  flanges using  precast concrete  elements  for shear lag;  design resistance to longitudinal   shear;  and  the  design  resistance  of  headed  stud  connectors  in  the  presence  of  precast  hollow  core slabs.
PB  - Ernest & Sohn a Willey Brands
C3  - ce/papers Proceedings in Civil Engineering, Ernest & Sohn a Willey Brands
T1  - New Eurocode 4 design rules for composite beams with precast concrete slabs
EP  - 47
IS  - 1
SP  - 38
VL  - 6
DO  - 10.1002/cepa.1890
ER  - 

@conference{
author = "Hicks, Stephen and Braun, Matthias and Marković, Zlatko and Way, James",
year = "2023",
abstract = "As members of  Project  Team SC4.T5, the authors of  this paper present  the main outcomes  from the  work that isintended  for implementation  within the  second  generation  of Eurocode  4.  General design and application  rules for composite design of precast concrete  elements  will be presented, with a particular focus on:  the effective  width  of  flanges using  precast concrete  elements  for shear lag;  design resistance to longitudinal   shear;  and  the  design  resistance  of  headed  stud  connectors  in  the  presence  of  precast  hollow  core slabs.",
publisher = "Ernest & Sohn a Willey Brands",
journal = "ce/papers Proceedings in Civil Engineering, Ernest & Sohn a Willey Brands",
title = "New Eurocode 4 design rules for composite beams with precast concrete slabs",
pages = "47-38",
number = "1",
volume = "6",
doi = "10.1002/cepa.1890"
}

Hicks, S., Braun, M., Marković, Z.,& Way, J.. (2023). New Eurocode 4 design rules for composite beams with precast concrete slabs. in ce/papers Proceedings in Civil Engineering, Ernest & Sohn a Willey Brands
Ernest & Sohn a Willey Brands., 6(1), 38-47.
https://doi.org/10.1002/cepa.1890

Hicks S, Braun M, Marković Z, Way J. New Eurocode 4 design rules for composite beams with precast concrete slabs. in ce/papers Proceedings in Civil Engineering, Ernest & Sohn a Willey Brands. 2023;6(1):38-47.
doi:10.1002/cepa.1890 .

Hicks, Stephen, Braun, Matthias, Marković, Zlatko, Way, James, "New Eurocode 4 design rules for composite beams with precast concrete slabs" in ce/papers Proceedings in Civil Engineering, Ernest & Sohn a Willey Brands, 6, no. 1 (2023):38-47,
https://doi.org/10.1002/cepa.1890 . .

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  - 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  - Koprivica, Milica
AU  - Marković, Zlatko
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3047
AB  - Summary:
This paper compares the procedures for calculating steel plate girders according to thе current
standards ЕN1993-1-5: 2006 [1] and the new version prEN1993-1-5: 2020, which is in the final
stage of development [2]. There is a particular emphasis on problems of resistance to patch
loading, the interaction between transverse force, bending moment and shear force, and the
reduced stress method. The differences between the current standard and the new version
prEN1993-1-5: 2020 [2] are illustrated using specific numerical examples.
C3  - Association of Structural Engineers of Serbia
T1  - Comparative analysis of patch loading buckling resistances according to existing and new Eurocode
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3047
ER  - 

@conference{
author = "Koprivica, Milica and Marković, Zlatko",
year = "2022",
abstract = "Summary:
This paper compares the procedures for calculating steel plate girders according to thе current
standards ЕN1993-1-5: 2006 [1] and the new version prEN1993-1-5: 2020, which is in the final
stage of development [2]. There is a particular emphasis on problems of resistance to patch
loading, the interaction between transverse force, bending moment and shear force, and the
reduced stress method. The differences between the current standard and the new version
prEN1993-1-5: 2020 [2] are illustrated using specific numerical examples.",
journal = "Association of Structural Engineers of Serbia",
title = "Comparative analysis of patch loading buckling resistances according to existing and new Eurocode",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3047"
}

Koprivica, M.,& Marković, Z.. (2022). Comparative analysis of patch loading buckling resistances according to existing and new Eurocode. in Association of Structural Engineers of Serbia.
https://hdl.handle.net/21.15107/rcub_grafar_3047

Koprivica M, Marković Z. Comparative analysis of patch loading buckling resistances according to existing and new Eurocode. in Association of Structural Engineers of Serbia. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3047 .

Koprivica, Milica, Marković, Zlatko, "Comparative analysis of patch loading buckling resistances according to existing and new Eurocode" in Association of Structural Engineers of Serbia (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3047 .

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

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

Dobrić, J., Gluhović, N., Marković, Z.,& Buđevac, D.. (2021). Stability design criteria for closely spaced built-up stainless steel columns. in Građevinski materijali i konstrukcije Building Materials and Structures
Society for Materials and Structures Testing of Serbia., 64.
https://doi.org/10.5937/GRMK2104235D

Dobrić J, Gluhović N, Marković Z, Buđevac D. Stability design criteria for closely spaced built-up stainless steel columns. in Građevinski materijali i konstrukcije Building Materials and Structures. 2021;64.
doi:10.5937/GRMK2104235D .

Dobrić, Jelena, Gluhović, Nina, Marković, Zlatko, Buđevac, Dragan, "Stability design criteria for closely spaced built-up stainless steel columns" in Građevinski materijali i konstrukcije Building Materials and Structures, 64 (2021),
https://doi.org/10.5937/GRMK2104235D . .

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

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

Filipović, A., Dobrić, J., Marković, Z.,& Baddoo, N.. (2021). Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns. in CE/Papers
Ernst&Sohn..
https://hdl.handle.net/21.15107/rcub_grafar_2610

Filipović A, Dobrić J, Marković Z, Baddoo N. Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns. in CE/Papers. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2610 .

Filipović, Aljoša, Dobrić, Jelena, Marković, Zlatko, Baddoo, Nancy, "Imperfection sensitivity study of hot-rolled and laser-welded stainless steel angle columns" in CE/Papers (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2610 .

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

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

Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2021). The new buckling curves for cold-formed stainless steel equal-leg angle columns. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress
Univerzitet u Beogradu Građevinski fakultet., 501-510.
https://hdl.handle.net/21.15107/rcub_grafar_2607

Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. The new buckling curves for cold-formed stainless steel equal-leg angle columns. in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress. 2021;:501-510.
https://hdl.handle.net/21.15107/rcub_grafar_2607 .

Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "The new buckling curves for cold-formed stainless steel equal-leg angle columns" in ASES International congress proceedings / Association of Structural Engineers of Serbia, 16th Congress (2021):501-510,
https://hdl.handle.net/21.15107/rcub_grafar_2607 .

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Filipović, Aljoša
AU  - Baddoo, Nancy
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2418
AB  - The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle 
members are not explicitly stated in the current European standard SRPS EN 1993-
1-4. This paper summarizes the results of extensive research conducted on this type 
of structural elements aiming to define recommendations for their design. Based on 
a  systematic  experimental  investigation,  a  detailed  numerical  analysis  was 
performed,  and  a  database  of  columns’  resistances  were  defined.  Material  and 
geometric nonlinear analysis included three key stainless steel alloys, austenitic, 
ferritic  and duplex.  The  design  curves  for  flexural  and  flexural–torsional  buckling 
check have been proposed in accordance with European codified procedures.
T2  - Building Materials and Structures
T1  - The new buckling curves for cold-formed stainless steel equal-leg angle columns
IS  - 64
DO  - 10.5937/GRMK2103171D
ER  - 

@article{
author = "Dobrić, Jelena and Filipović, Aljoša and Baddoo, Nancy and Marković, Zlatko and Buđevac, Dragan",
year = "2021",
abstract = "The  design  rules  for  centrically  compressed  stainless  steel  equal-leg  angle 
members are not explicitly stated in the current European standard SRPS EN 1993-
1-4. This paper summarizes the results of extensive research conducted on this type 
of structural elements aiming to define recommendations for their design. Based on 
a  systematic  experimental  investigation,  a  detailed  numerical  analysis  was 
performed,  and  a  database  of  columns’  resistances  were  defined.  Material  and 
geometric nonlinear analysis included three key stainless steel alloys, austenitic, 
ferritic  and duplex.  The  design  curves  for  flexural  and  flexural–torsional  buckling 
check have been proposed in accordance with European codified procedures.",
journal = "Building Materials and Structures",
title = "The new buckling curves for cold-formed stainless steel equal-leg angle columns",
number = "64",
doi = "10.5937/GRMK2103171D"
}

Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2021). The new buckling curves for cold-formed stainless steel equal-leg angle columns. in Building Materials and Structures(64).
https://doi.org/10.5937/GRMK2103171D

Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. The new buckling curves for cold-formed stainless steel equal-leg angle columns. in Building Materials and Structures. 2021;(64).
doi:10.5937/GRMK2103171D .

Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "The new buckling curves for cold-formed stainless steel equal-leg angle columns" in Building Materials and Structures, no. 64 (2021),
https://doi.org/10.5937/GRMK2103171D . .

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

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

Filipović, A., Dobrić, J., Blagojević, D., Samardžić - Petrović, M., Buđevac, D.,& Marković, Z.. (2021). Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika. in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020
Univerzitet u Beogradu Građevinski fakultet., 513-521.
https://hdl.handle.net/21.15107/rcub_grafar_2609

Filipović A, Dobrić J, Blagojević D, Samardžić - Petrović M, Buđevac D, Marković Z. Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika. in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020. 2021;:513-521.
https://hdl.handle.net/21.15107/rcub_grafar_2609 .

Filipović, Aljoša, Dobrić, Jelena, Blagojević, Dragan, Samardžić - Petrović, Mileva, Buđevac, Dragan, Marković, Zlatko, "Početne imperfekcije stubova ravnokrakog L poprečnog preseka od nerđajućeg čelika" in Zbornik radova sa Nacionalnog simpozijuma DGKS  / Društvо  građevinskih konstruktera Srbije, Simpozijum 2020 (2021):513-521,
https://hdl.handle.net/21.15107/rcub_grafar_2609 .

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

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

Dobrić, J., Filipović, A., Marković, Z.,& Baddoo, N.. (2020). Structural response to axial testing of cold-formed stainless steel angle columns. in Thin-Walled Structures, 156.
https://doi.org/https://doi.org/10.1016/j.tws.2020.106986

Dobrić J, Filipović A, Marković Z, Baddoo N. Structural response to axial testing of cold-formed stainless steel angle columns. in Thin-Walled Structures. 2020;156.
doi:https://doi.org/10.1016/j.tws.2020.106986 .

Dobrić, Jelena, Filipović, Aljoša, Marković, Zlatko, Baddoo, Nancy, "Structural response to axial testing of cold-formed stainless steel angle columns" in Thin-Walled Structures, 156 (2020),
https://doi.org/https://doi.org/10.1016/j.tws.2020.106986 . .

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

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

Marković, Z., Dobrić, J.,& Gluhović, N.. (2020). Comparison of wind actions according to Eurocode and previous regulations. in Scientific Journal of Civil Engineering
SS Cyril and Methodius Faculty of Civil Engineering., 9.
https://hdl.handle.net/21.15107/rcub_grafar_2179

Marković Z, Dobrić J, Gluhović N. Comparison of wind actions according to Eurocode and previous regulations. in Scientific Journal of Civil Engineering. 2020;9.
https://hdl.handle.net/21.15107/rcub_grafar_2179 .

Marković, Zlatko, Dobrić, Jelena, Gluhović, Nina, "Comparison of wind actions according to Eurocode and previous regulations" in Scientific Journal of Civil Engineering, 9 (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2179 .

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

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

Dobrić, J., Filipović, A., Baddoo, N., Marković, Z.,& Buđevac, D.. (2020). Design procedures for cold-formed stainless steel equal-leg angle columns. in Thin-Walled Structures.
https://doi.org/https://doi.org/10.1016/j.tws.2020.107210

Dobrić J, Filipović A, Baddoo N, Marković Z, Buđevac D. Design procedures for cold-formed stainless steel equal-leg angle columns. in Thin-Walled Structures. 2020;.
doi:https://doi.org/10.1016/j.tws.2020.107210 .

Dobrić, Jelena, Filipović, Aljoša, Baddoo, Nancy, Marković, Zlatko, Buđevac, Dragan, "Design procedures for cold-formed stainless steel equal-leg angle columns" in Thin-Walled Structures (2020),
https://doi.org/https://doi.org/10.1016/j.tws.2020.107210 . .

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 . .