TY  - JOUR
AU  - Fric, Nenad
AU  - Veljković, Milan
AU  - Mišković, Zoran
AU  - Budjevac, Dragan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2388
AB  - Slip-resistant shear connections with preloaded bolts have traditionally been used in steel
structures exposed to cyclic. Hence, shear load is transferred through friction surfaces
rather than through contact between the bolt surface and the hole. The main influencing
parameters determining slip resistance of the connection are the friction between contact
surfaces and the bolt preload level. This paper presents an experimental study of preloaded
bolted connections under cyclic load, the main objective being to investigate the influence
of cyclic load on the losses of preload force in high strength bolts and lock bolts.
T2  - GRAĐEVINAR
T1  - Experimental investigation of preload losses in high strength bolts under cyclic loading
IS  - 5
SP  - 453
SP  - 468
VL  - 73
DO  - 10.14256/JCE.3157.2021
ER  - 

@article{
author = "Fric, Nenad and Veljković, Milan and Mišković, Zoran and Budjevac, Dragan",
year = "2021",
abstract = "Slip-resistant shear connections with preloaded bolts have traditionally been used in steel
structures exposed to cyclic. Hence, shear load is transferred through friction surfaces
rather than through contact between the bolt surface and the hole. The main influencing
parameters determining slip resistance of the connection are the friction between contact
surfaces and the bolt preload level. This paper presents an experimental study of preloaded
bolted connections under cyclic load, the main objective being to investigate the influence
of cyclic load on the losses of preload force in high strength bolts and lock bolts.",
journal = "GRAĐEVINAR",
title = "Experimental investigation of preload losses in high strength bolts under cyclic loading",
number = "5",
pages = "453-468",
volume = "73",
doi = "10.14256/JCE.3157.2021"
}

Fric, N., Veljković, M., Mišković, Z.,& Budjevac, D.. (2021). Experimental investigation of preload losses in high strength bolts under cyclic loading. in GRAĐEVINAR, 73(5), 453.
https://doi.org/10.14256/JCE.3157.2021

Fric N, Veljković M, Mišković Z, Budjevac D. Experimental investigation of preload losses in high strength bolts under cyclic loading. in GRAĐEVINAR. 2021;73(5):453.
doi:10.14256/JCE.3157.2021 .

Fric, Nenad, Veljković, Milan, Mišković, Zoran, Budjevac, Dragan, "Experimental investigation of preload losses in high strength bolts under cyclic loading" in GRAĐEVINAR, 73, no. 5 (2021):453,
https://doi.org/10.14256/JCE.3157.2021 . .

TY  - JOUR
AU  - Spremić, Milan
AU  - Pavlović, Marko
AU  - Marković, Zlatko
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/949
AB  - Existing design codes for steel-concrete composite structures give only general information about the shear connection provided by headed studs in group arrangement. Grouting of the openings in prefabricated concrete slabs, where the grouped headed studs are placed in the deck pockets is alternative to cast-in-place decks to accomplish fast execution of composite structures. This paper considers the possibility to reduce the distance between the studs within the group, bellow the Eurocode limitations. This may lead to increased competitiveness of the prefabricated construction because more studs are placed in the group if negative effectives of smaller distances between studs are limited. The main purpose of this work is to investigate these limits and propose an analytical calculation model for prediction of the shear resistance of grouped stud arrangements in the deck pockets. An advanced FEA model, validated by results of push-out experiments, is used to analyze the shear behavior of the grouped stud with smaller distance between them than recommended by EN 1994-1. Calculation model for shear resistance, which is consistent with the existing Eurocode rules, is proposed based on a newly introduced equivalent diameter of the stud group, d(G). The new calculation model is validated by comparison to the results of FE parametric study. The distance between the studs in the longitudinal direction and the number of stud rows and columns in the group are considered as the main variables.
PB  - Techno Press
T2  - Steel and Composite Structures
T1  - FE validation of the equivalent diameter calculation model for grouped headed studs
EP  - 386
IS  - 3
SP  - 375
VL  - 26
DO  - 10.12989/scs.2018.26.3.375
ER  - 

@article{
author = "Spremić, Milan and Pavlović, Marko and Marković, Zlatko and Veljković, Milan and Buđevac, Dragan",
year = "2018",
abstract = "Existing design codes for steel-concrete composite structures give only general information about the shear connection provided by headed studs in group arrangement. Grouting of the openings in prefabricated concrete slabs, where the grouped headed studs are placed in the deck pockets is alternative to cast-in-place decks to accomplish fast execution of composite structures. This paper considers the possibility to reduce the distance between the studs within the group, bellow the Eurocode limitations. This may lead to increased competitiveness of the prefabricated construction because more studs are placed in the group if negative effectives of smaller distances between studs are limited. The main purpose of this work is to investigate these limits and propose an analytical calculation model for prediction of the shear resistance of grouped stud arrangements in the deck pockets. An advanced FEA model, validated by results of push-out experiments, is used to analyze the shear behavior of the grouped stud with smaller distance between them than recommended by EN 1994-1. Calculation model for shear resistance, which is consistent with the existing Eurocode rules, is proposed based on a newly introduced equivalent diameter of the stud group, d(G). The new calculation model is validated by comparison to the results of FE parametric study. The distance between the studs in the longitudinal direction and the number of stud rows and columns in the group are considered as the main variables.",
publisher = "Techno Press",
journal = "Steel and Composite Structures",
title = "FE validation of the equivalent diameter calculation model for grouped headed studs",
pages = "386-375",
number = "3",
volume = "26",
doi = "10.12989/scs.2018.26.3.375"
}

Spremić, M., Pavlović, M., Marković, Z., Veljković, M.,& Buđevac, D.. (2018). FE validation of the equivalent diameter calculation model for grouped headed studs. in Steel and Composite Structures
Techno Press., 26(3), 375-386.
https://doi.org/10.12989/scs.2018.26.3.375

Spremić M, Pavlović M, Marković Z, Veljković M, Buđevac D. FE validation of the equivalent diameter calculation model for grouped headed studs. in Steel and Composite Structures. 2018;26(3):375-386.
doi:10.12989/scs.2018.26.3.375 .

Spremić, Milan, Pavlović, Marko, Marković, Zlatko, Veljković, Milan, Buđevac, Dragan, "FE validation of the equivalent diameter calculation model for grouped headed studs" in Steel and Composite Structures, 26, no. 3 (2018):375-386,
https://doi.org/10.12989/scs.2018.26.3.375 . .

TY  - JOUR
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Veljković, Milan
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/827
AB  - Grouped headed studs may be successfully utilized to achieve the longitudinal shear connection between prefabricated slabs and steel beams. The behaviour of the studs and the ultimate resistance of the group were analysed using the results of experimental push tests and by employing advanced FE analyses. Different arrangements of studs in the group were investigated, focusing on minimal distance between the studs. It is demonstrated that the full shear resistance of a group of headed studs is achieved even when the distances between the studs are less than the minimum requirement according to EN 1994-1-1. Concrete class C30/37 is the minimum that should be used. Furthermore, the paper presents a new model for calculating the shear resistance of grouped headed studs. The proposed design model is based on an equivalent stud diameter and can be used for various arrangements of headed studs in a group. The shear resistance formula and the requirements for ductility are consistent with the existing Eurocodes. Fatigue loading is not considered in this paper, so the proposed recommendations are valid for buildings including multi-storey car parks.
PB  - Wiley-Blackwell
T2  - Steel Construction-Design and Research
T1  - Recommendations for the design of grouped headed studs
EP  - 153
IS  - 2
SP  - 145
VL  - 10
DO  - 10.1002/stco.201710018
ER  - 

@article{
author = "Spremić, Milan and Marković, Zlatko and Veljković, Milan",
year = "2017",
abstract = "Grouped headed studs may be successfully utilized to achieve the longitudinal shear connection between prefabricated slabs and steel beams. The behaviour of the studs and the ultimate resistance of the group were analysed using the results of experimental push tests and by employing advanced FE analyses. Different arrangements of studs in the group were investigated, focusing on minimal distance between the studs. It is demonstrated that the full shear resistance of a group of headed studs is achieved even when the distances between the studs are less than the minimum requirement according to EN 1994-1-1. Concrete class C30/37 is the minimum that should be used. Furthermore, the paper presents a new model for calculating the shear resistance of grouped headed studs. The proposed design model is based on an equivalent stud diameter and can be used for various arrangements of headed studs in a group. The shear resistance formula and the requirements for ductility are consistent with the existing Eurocodes. Fatigue loading is not considered in this paper, so the proposed recommendations are valid for buildings including multi-storey car parks.",
publisher = "Wiley-Blackwell",
journal = "Steel Construction-Design and Research",
title = "Recommendations for the design of grouped headed studs",
pages = "153-145",
number = "2",
volume = "10",
doi = "10.1002/stco.201710018"
}

Spremić, M., Marković, Z.,& Veljković, M.. (2017). Recommendations for the design of grouped headed studs. in Steel Construction-Design and Research
Wiley-Blackwell., 10(2), 145-153.
https://doi.org/10.1002/stco.201710018

Spremić M, Marković Z, Veljković M. Recommendations for the design of grouped headed studs. in Steel Construction-Design and Research. 2017;10(2):145-153.
doi:10.1002/stco.201710018 .

Spremić, Milan, Marković, Zlatko, Veljković, Milan, "Recommendations for the design of grouped headed studs" in Steel Construction-Design and Research, 10, no. 2 (2017):145-153,
https://doi.org/10.1002/stco.201710018 . .

TY  - JOUR
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Dobrić, Jelena
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/813
AB  - The behaviour and characteristics of the elements of prefabricated composite steel and concrete structures are determined by behaviour of the longitudinal shear connection. Headed studs in groups are most frequently used for forming longitudinal shear connection of prefabricated composite beams. The results of experimental research and advanced numerical models of shear connections, obtained using groups of headed studs, are presented in the paper. When headed studs are arranged in groups, it is recommended to use the headed studs with the height greater than the 4d height prescribed by the Eurocode.
PB  - Union of Croatian Civil Engineers and Technicians
T2  - Građevinar
T1  - Shear connection with groups of headed studs
EP  - 386
IS  - 5
SP  - 379
VL  - 69
DO  - 10.14256/JCE.1701.2016
ER  - 

@article{
author = "Spremić, Milan and Marković, Zlatko and Dobrić, Jelena and Veljković, Milan and Buđevac, Dragan",
year = "2017",
abstract = "The behaviour and characteristics of the elements of prefabricated composite steel and concrete structures are determined by behaviour of the longitudinal shear connection. Headed studs in groups are most frequently used for forming longitudinal shear connection of prefabricated composite beams. The results of experimental research and advanced numerical models of shear connections, obtained using groups of headed studs, are presented in the paper. When headed studs are arranged in groups, it is recommended to use the headed studs with the height greater than the 4d height prescribed by the Eurocode.",
publisher = "Union of Croatian Civil Engineers and Technicians",
journal = "Građevinar",
title = "Shear connection with groups of headed studs",
pages = "386-379",
number = "5",
volume = "69",
doi = "10.14256/JCE.1701.2016"
}

Spremić, M., Marković, Z., Dobrić, J., Veljković, M.,& Buđevac, D.. (2017). Shear connection with groups of headed studs. in Građevinar
Union of Croatian Civil Engineers and Technicians., 69(5), 379-386.
https://doi.org/10.14256/JCE.1701.2016

Spremić M, Marković Z, Dobrić J, Veljković M, Buđevac D. Shear connection with groups of headed studs. in Građevinar. 2017;69(5):379-386.
doi:10.14256/JCE.1701.2016 .

Spremić, Milan, Marković, Zlatko, Dobrić, Jelena, Veljković, Milan, Buđevac, Dragan, "Shear connection with groups of headed studs" in Građevinar, 69, no. 5 (2017):379-386,
https://doi.org/10.14256/JCE.1701.2016 . .

TY  - CONF
AU  - Pavlović, Marko
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Veljković, Milan
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/805
AB  - Prefabricated steel and concrete composite decks are an interesting option to improve competitiveness and sustainability of the composite structures. Longitudinal shear connection is usually established by grouped headed studs, but possible alternative solution is to use bolted shear connectors. Welded headed studs and bolts (grade 8.8) are experimentally examined in the push-out tests (four tests on each). The same arrangement and dimensions of shear connectors (16 mm diameter and 100 mm height above flange) are considered and their resistances and behaviour are compared. Experimental results showed that headed studs and bolted shear connectors have similar shear resistance, while headed studs are more ductile. FEA is performed by ABAQUS/Explicit solver with damage material models to get more insight into behaviour of the specimens. FEA shows rather good agreement with experimental results. Influence of the bolt to hole clearance on the behaviour of specimens with bolted shear connectors is analysed and discussed.
PB  - American Society of Civil Engineers (ASCE)
C3  - Composite Construction in Steel and Concrete Vii
T1  - Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks
EP  - 702
SP  - 687
UR  - https://hdl.handle.net/21.15107/rcub_grafar_805
ER  - 

@conference{
author = "Pavlović, Marko and Spremić, Milan and Marković, Zlatko and Veljković, Milan",
year = "2016",
abstract = "Prefabricated steel and concrete composite decks are an interesting option to improve competitiveness and sustainability of the composite structures. Longitudinal shear connection is usually established by grouped headed studs, but possible alternative solution is to use bolted shear connectors. Welded headed studs and bolts (grade 8.8) are experimentally examined in the push-out tests (four tests on each). The same arrangement and dimensions of shear connectors (16 mm diameter and 100 mm height above flange) are considered and their resistances and behaviour are compared. Experimental results showed that headed studs and bolted shear connectors have similar shear resistance, while headed studs are more ductile. FEA is performed by ABAQUS/Explicit solver with damage material models to get more insight into behaviour of the specimens. FEA shows rather good agreement with experimental results. Influence of the bolt to hole clearance on the behaviour of specimens with bolted shear connectors is analysed and discussed.",
publisher = "American Society of Civil Engineers (ASCE)",
journal = "Composite Construction in Steel and Concrete Vii",
title = "Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks",
pages = "702-687",
url = "https://hdl.handle.net/21.15107/rcub_grafar_805"
}

Pavlović, M., Spremić, M., Marković, Z.,& Veljković, M.. (2016). Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks. in Composite Construction in Steel and Concrete Vii
American Society of Civil Engineers (ASCE)., 687-702.
https://hdl.handle.net/21.15107/rcub_grafar_805

Pavlović M, Spremić M, Marković Z, Veljković M. Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks. in Composite Construction in Steel and Concrete Vii. 2016;:687-702.
https://hdl.handle.net/21.15107/rcub_grafar_805 .

Pavlović, Marko, Spremić, Milan, Marković, Zlatko, Veljković, Milan, "Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks" in Composite Construction in Steel and Concrete Vii (2016):687-702,
https://hdl.handle.net/21.15107/rcub_grafar_805 .

TY  - CONF
AU  - Pavlović, Marko
AU  - Marković, Zlatko
AU  - Veljković, Milan
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1501
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
T1  - Resistace of bolted shear connectors in prefabricated steel – concrete composite decks
EP  - 73
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1501
ER  - 

@conference{
author = "Pavlović, Marko and Marković, Zlatko and Veljković, Milan",
year = "2016",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor",
title = "Resistace of bolted shear connectors in prefabricated steel – concrete composite decks",
pages = "73-64",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1501"
}

Pavlović, M., Marković, Z.,& Veljković, M.. (2016). Resistace of bolted shear connectors in prefabricated steel – concrete composite decks. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
Društvo građevinskih konstruktera Srbije, Beograd., 64-73.
https://hdl.handle.net/21.15107/rcub_grafar_1501

Pavlović M, Marković Z, Veljković M. Resistace of bolted shear connectors in prefabricated steel – concrete composite decks. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor. 2016;:64-73.
https://hdl.handle.net/21.15107/rcub_grafar_1501 .

Pavlović, Marko, Marković, Zlatko, Veljković, Milan, "Resistace of bolted shear connectors in prefabricated steel – concrete composite decks" in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor (2016):64-73,
https://hdl.handle.net/21.15107/rcub_grafar_1501 .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
AU  - Veljković, Milan
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/693
AB  - Prefabrication of steel-concrete composite decks can improve their competitiveness and sustainability. This paper presents recent studie of longitudinal shear connection at the University of Belgrade, Faculty of Civil Engineering. Grouped welded headed studs and bolted shear connectors, suitable for prefabricated composite construction, has been examined in push-out tests. Totally 30 tests were conducted, and advanced Finite Element Analysis (FEA) were made using Abaqus/Explicit dynamic solver. Influence of the bolt-to-hole clearance in case of the composite beam with bolted shear connectors is examined using FEA, as well. Based on the experimental and numerical studies behaviour those two shear connectors are compared.
AB  - Prefabrikacijom spregnutih konstrukcija od čelika i betona može se povećati njihova konkurentnost i smanjiti uticaj konstrukcije na životnu sredinu. Ovde su prikazana istraživanja podužnih smičućih spojeva koja su nedavno sprovedena na Građevinskom fakultetu Univerziteta u Beogradu. Rešenja podužnog smičućeg spoja sa grupisanim moždanicima sa glavom i zavrtnjevima kao sredstvima za sprezanje koja su pogodna za prefabrikaciju spregnutih konstrukcija su ispitivana standardnim eksperimentom smicanja. Eksperimentalno je ispitano ukupno 30 uzoraka i vršene su analize na bazi MKE korišćenjem softverskog paketa Abaqus/Explicit. Primenom MKE analizirano je i ponašanjenosača sa zavrtnjevima kao sredstvima za sprezanje i uticaj zazora između rupe i zavrtnja. Na bazi eksperimentalnih i numeričkih ispitivanja izvršeno je poređenje ponašanja ova dva sredstva za sprezanje i razvijene su nove preporuke za proračun i konstruisanje.
PB  - Savez građevinskih inženjera Srbije, Beograd
T2  - Građevinski kalendar
T1  - Contemporary approaches for longitudinal shear connection in prefabricated steel-concrete composite structures
T1  - Savremena rešenja podužnog smičućeg spoja kod prefabrikovanih spregnutih konstrukcija od čelika
EP  - 39
IS  - 47
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_grafar_693
ER  - 

@article{
author = "Pavlović, Marko and Spremić, Milan and Marković, Zlatko and Buđevac, Dragan and Veljković, Milan",
year = "2015",
abstract = "Prefabrication of steel-concrete composite decks can improve their competitiveness and sustainability. This paper presents recent studie of longitudinal shear connection at the University of Belgrade, Faculty of Civil Engineering. Grouped welded headed studs and bolted shear connectors, suitable for prefabricated composite construction, has been examined in push-out tests. Totally 30 tests were conducted, and advanced Finite Element Analysis (FEA) were made using Abaqus/Explicit dynamic solver. Influence of the bolt-to-hole clearance in case of the composite beam with bolted shear connectors is examined using FEA, as well. Based on the experimental and numerical studies behaviour those two shear connectors are compared., Prefabrikacijom spregnutih konstrukcija od čelika i betona može se povećati njihova konkurentnost i smanjiti uticaj konstrukcije na životnu sredinu. Ovde su prikazana istraživanja podužnih smičućih spojeva koja su nedavno sprovedena na Građevinskom fakultetu Univerziteta u Beogradu. Rešenja podužnog smičućeg spoja sa grupisanim moždanicima sa glavom i zavrtnjevima kao sredstvima za sprezanje koja su pogodna za prefabrikaciju spregnutih konstrukcija su ispitivana standardnim eksperimentom smicanja. Eksperimentalno je ispitano ukupno 30 uzoraka i vršene su analize na bazi MKE korišćenjem softverskog paketa Abaqus/Explicit. Primenom MKE analizirano je i ponašanjenosača sa zavrtnjevima kao sredstvima za sprezanje i uticaj zazora između rupe i zavrtnja. Na bazi eksperimentalnih i numeričkih ispitivanja izvršeno je poređenje ponašanja ova dva sredstva za sprezanje i razvijene su nove preporuke za proračun i konstruisanje.",
publisher = "Savez građevinskih inženjera Srbije, Beograd",
journal = "Građevinski kalendar",
title = "Contemporary approaches for longitudinal shear connection in prefabricated steel-concrete composite structures, Savremena rešenja podužnog smičućeg spoja kod prefabrikovanih spregnutih konstrukcija od čelika",
pages = "39-1",
number = "47",
url = "https://hdl.handle.net/21.15107/rcub_grafar_693"
}

Pavlović, M., Spremić, M., Marković, Z., Buđevac, D.,& Veljković, M.. (2015). Contemporary approaches for longitudinal shear connection in prefabricated steel-concrete composite structures. in Građevinski kalendar
Savez građevinskih inženjera Srbije, Beograd.(47), 1-39.
https://hdl.handle.net/21.15107/rcub_grafar_693

Pavlović M, Spremić M, Marković Z, Buđevac D, Veljković M. Contemporary approaches for longitudinal shear connection in prefabricated steel-concrete composite structures. in Građevinski kalendar. 2015;(47):1-39.
https://hdl.handle.net/21.15107/rcub_grafar_693 .

Pavlović, Marko, Spremić, Milan, Marković, Zlatko, Buđevac, Dragan, Veljković, Milan, "Contemporary approaches for longitudinal shear connection in prefabricated steel-concrete composite structures" in Građevinski kalendar, no. 47 (2015):1-39,
https://hdl.handle.net/21.15107/rcub_grafar_693 .

TY  - CONF
AU  - Fric, Nenad
AU  - Buđevac, Dragan
AU  - Veljković, Milan
AU  - Mišković, Zoran
AU  - Marković, Zlatko
AU  - Isaković, Jovan
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1152
PB  - ECCS, Brussels
C3  - Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
T1  - Test arrangement for measurements of the pretension force in high strength bolts
EP  - 286
SP  - 285
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1152
ER  - 

@conference{
author = "Fric, Nenad and Buđevac, Dragan and Veljković, Milan and Mišković, Zoran and Marković, Zlatko and Isaković, Jovan",
year = "2014",
publisher = "ECCS, Brussels",
journal = "Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy",
title = "Test arrangement for measurements of the pretension force in high strength bolts",
pages = "286-285",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1152"
}

Fric, N., Buđevac, D., Veljković, M., Mišković, Z., Marković, Z.,& Isaković, J.. (2014). Test arrangement for measurements of the pretension force in high strength bolts. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
ECCS, Brussels., 285-286.
https://hdl.handle.net/21.15107/rcub_grafar_1152

Fric N, Buđevac D, Veljković M, Mišković Z, Marković Z, Isaković J. Test arrangement for measurements of the pretension force in high strength bolts. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy. 2014;:285-286.
https://hdl.handle.net/21.15107/rcub_grafar_1152 .

Fric, Nenad, Buđevac, Dragan, Veljković, Milan, Mišković, Zoran, Marković, Zlatko, Isaković, Jovan, "Test arrangement for measurements of the pretension force in high strength bolts" in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy (2014):285-286,
https://hdl.handle.net/21.15107/rcub_grafar_1152 .

TY  - CONF
AU  - Pavlović, Marko
AU  - Marković, Zlatko
AU  - Spremić, Milan
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1159
PB  - ECCS, Brussels
C3  - Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
T1  - Influence of number of embedded nuts and bolt preloading force on behaviour of bolted shear connectors in the pushout test
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1159
ER  - 

@conference{
author = "Pavlović, Marko and Marković, Zlatko and Spremić, Milan and Veljković, Milan and Buđevac, Dragan",
year = "2014",
publisher = "ECCS, Brussels",
journal = "Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy",
title = "Influence of number of embedded nuts and bolt preloading force on behaviour of bolted shear connectors in the pushout test",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1159"
}

Pavlović, M., Marković, Z., Spremić, M., Veljković, M.,& Buđevac, D.. (2014). Influence of number of embedded nuts and bolt preloading force on behaviour of bolted shear connectors in the pushout test. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
ECCS, Brussels..
https://hdl.handle.net/21.15107/rcub_grafar_1159

Pavlović M, Marković Z, Spremić M, Veljković M, Buđevac D. Influence of number of embedded nuts and bolt preloading force on behaviour of bolted shear connectors in the pushout test. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy. 2014;.
https://hdl.handle.net/21.15107/rcub_grafar_1159 .

Pavlović, Marko, Marković, Zlatko, Spremić, Milan, Veljković, Milan, Buđevac, Dragan, "Influence of number of embedded nuts and bolt preloading force on behaviour of bolted shear connectors in the pushout test" in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy (2014),
https://hdl.handle.net/21.15107/rcub_grafar_1159 .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
AU  - Veljković, Milan
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/631
AB  - Prefabrication of steel-concrete composite decks can improve their competitiveness and sustainability. This paper presents recent studies of longitudinal shear connection at the University of Belgrade, Faculty of Civil Engineering. Grouped welded headed studs and bolted shear connectors, suitable for prefabricated composite construction, has been examined in push-out tests. Totally 30 tests were conducted, and advanced FEA were made using Abaqus/Explicit dynamic solver. Based on the experimental and numerical studies behaviour those two shear connectors are compared.
AB  - Prefabrikacijom spregnutih konstrukcija od čelika i betona može se povećati njihova konkurentnost i održivost. Ovde su prikazana istraživanja podužnih smičućih spojeva koja su nedavno sprovedena na Građevinskom fakultetu Univerziteta u Beogradu. Grupisani moždanici sa glavom i zavrtnjevi kao sredstva za sprezanje koja su pogodna za prefabrikaciju spregnutih konstrukcija su ispitivani standardnim eksperimentom smicanja. Eksperimentalno je ispitano ukupno 30 uzoraka i vršene su analize na bazi MKE korišćenjem softverskog paketa Abaqus/Explicit. Na bazi ekserimentalnih i numeričkih ispitivanja izvršeno je poređenje ponašanja ova dva sredstva za sprezanje.
PB  - Institut za istraživanja i projektovanja u privredi, Beograd
T2  - Journal of Applied Engineering Science
T1  - Recent research of shear connection in prefabricated steel-concrete composite beams
T1  - Savremena istraživanja smičućeg spoja prefabrikovanih spregnutih greda od čelika i betona
EP  - 80
IS  - 1
SP  - 75
VL  - 12
DO  - 10.5937/jaes12-5676
ER  - 

@article{
author = "Pavlović, Marko and Spremić, Milan and Marković, Zlatko and Buđevac, Dragan and Veljković, Milan",
year = "2014",
abstract = "Prefabrication of steel-concrete composite decks can improve their competitiveness and sustainability. This paper presents recent studies of longitudinal shear connection at the University of Belgrade, Faculty of Civil Engineering. Grouped welded headed studs and bolted shear connectors, suitable for prefabricated composite construction, has been examined in push-out tests. Totally 30 tests were conducted, and advanced FEA were made using Abaqus/Explicit dynamic solver. Based on the experimental and numerical studies behaviour those two shear connectors are compared., Prefabrikacijom spregnutih konstrukcija od čelika i betona može se povećati njihova konkurentnost i održivost. Ovde su prikazana istraživanja podužnih smičućih spojeva koja su nedavno sprovedena na Građevinskom fakultetu Univerziteta u Beogradu. Grupisani moždanici sa glavom i zavrtnjevi kao sredstva za sprezanje koja su pogodna za prefabrikaciju spregnutih konstrukcija su ispitivani standardnim eksperimentom smicanja. Eksperimentalno je ispitano ukupno 30 uzoraka i vršene su analize na bazi MKE korišćenjem softverskog paketa Abaqus/Explicit. Na bazi ekserimentalnih i numeričkih ispitivanja izvršeno je poređenje ponašanja ova dva sredstva za sprezanje.",
publisher = "Institut za istraživanja i projektovanja u privredi, Beograd",
journal = "Journal of Applied Engineering Science",
title = "Recent research of shear connection in prefabricated steel-concrete composite beams, Savremena istraživanja smičućeg spoja prefabrikovanih spregnutih greda od čelika i betona",
pages = "80-75",
number = "1",
volume = "12",
doi = "10.5937/jaes12-5676"
}

Pavlović, M., Spremić, M., Marković, Z., Buđevac, D.,& Veljković, M.. (2014). Recent research of shear connection in prefabricated steel-concrete composite beams. in Journal of Applied Engineering Science
Institut za istraživanja i projektovanja u privredi, Beograd., 12(1), 75-80.
https://doi.org/10.5937/jaes12-5676

Pavlović M, Spremić M, Marković Z, Buđevac D, Veljković M. Recent research of shear connection in prefabricated steel-concrete composite beams. in Journal of Applied Engineering Science. 2014;12(1):75-80.
doi:10.5937/jaes12-5676 .

Pavlović, Marko, Spremić, Milan, Marković, Zlatko, Buđevac, Dragan, Veljković, Milan, "Recent research of shear connection in prefabricated steel-concrete composite beams" in Journal of Applied Engineering Science, 12, no. 1 (2014):75-80,
https://doi.org/10.5937/jaes12-5676 . .

TY  - CONF
AU  - Pavlović, Marko
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Buđevac, Dragan
AU  - Veljković, Milan
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1188
PB  - Univerzitet Crne Gore, Građevinski fakultet, Podgorica
C3  - Zbornik radova / Peti Internacionalni naučno-stručni skup Građevinarstvo nauka i praksa
T1  - Recent research of sher connection in prefabricate steel-concrete beams
EP  - 292
SP  - 285
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1188
ER  - 

@conference{
author = "Pavlović, Marko and Spremić, Milan and Marković, Zlatko and Buđevac, Dragan and Veljković, Milan",
year = "2014",
publisher = "Univerzitet Crne Gore, Građevinski fakultet, Podgorica",
journal = "Zbornik radova / Peti Internacionalni naučno-stručni skup Građevinarstvo nauka i praksa",
title = "Recent research of sher connection in prefabricate steel-concrete beams",
pages = "292-285",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1188"
}

Pavlović, M., Spremić, M., Marković, Z., Buđevac, D.,& Veljković, M.. (2014). Recent research of sher connection in prefabricate steel-concrete beams. in Zbornik radova / Peti Internacionalni naučno-stručni skup Građevinarstvo nauka i praksa
Univerzitet Crne Gore, Građevinski fakultet, Podgorica., 285-292.
https://hdl.handle.net/21.15107/rcub_grafar_1188

Pavlović M, Spremić M, Marković Z, Buđevac D, Veljković M. Recent research of sher connection in prefabricate steel-concrete beams. in Zbornik radova / Peti Internacionalni naučno-stručni skup Građevinarstvo nauka i praksa. 2014;:285-292.
https://hdl.handle.net/21.15107/rcub_grafar_1188 .

Pavlović, Marko, Spremić, Milan, Marković, Zlatko, Buđevac, Dragan, Veljković, Milan, "Recent research of sher connection in prefabricate steel-concrete beams" in Zbornik radova / Peti Internacionalni naučno-stručni skup Građevinarstvo nauka i praksa (2014):285-292,
https://hdl.handle.net/21.15107/rcub_grafar_1188 .

TY  - CONF
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Pavlovic, Marko
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1135
PB  - ECCS, Brussels
C3  - Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
T1  - Reduction of shear resistance for headed studs – Group arrangements in precast slabs
EP  - 581
SP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1135
ER  - 

@conference{
author = "Spremić, Milan and Marković, Zlatko and Pavlovic, Marko and Veljković, Milan and Buđevac, Dragan",
year = "2014",
publisher = "ECCS, Brussels",
journal = "Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy",
title = "Reduction of shear resistance for headed studs – Group arrangements in precast slabs",
pages = "581-579",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1135"
}

Spremić, M., Marković, Z., Pavlovic, M., Veljković, M.,& Buđevac, D.. (2014). Reduction of shear resistance for headed studs – Group arrangements in precast slabs. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy
ECCS, Brussels., 579-581.
https://hdl.handle.net/21.15107/rcub_grafar_1135

Spremić M, Marković Z, Pavlovic M, Veljković M, Buđevac D. Reduction of shear resistance for headed studs – Group arrangements in precast slabs. in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy. 2014;:579-581.
https://hdl.handle.net/21.15107/rcub_grafar_1135 .

Spremić, Milan, Marković, Zlatko, Pavlovic, Marko, Veljković, Milan, Buđevac, Dragan, "Reduction of shear resistance for headed studs – Group arrangements in precast slabs" in Eurosteel 2014 : 7th European conference on steel composite structures : September 10-12, 2014 Naples, Italy (2014):579-581,
https://hdl.handle.net/21.15107/rcub_grafar_1135 .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Marković, Zlatko
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2013
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/542
AB  - Prefabrication of concrete slabs reduces construction time for composite steel-concrete buildings and bridges. Different alternatives for shear connectors (bolts and headed studs) are analysed here to gain better insight in failure modes of shear connector in order to improve competiveness of prefabricated composite structures. Casting of high strength bolted shear connectors in prefabricated concrete slabs offers the higher level of prefabrication comparing to a standard method of grouting welded headed studs in envisaged pockets of concrete slabs. In addition, bolted shear connectors can easily be dismantled together with the concrete slab thus allowing the improved sustainability of the construction, simpler maintenance, and development of modular structural systems. Bolted shear connectors have been rarely used in construction, actually just for rehabilitation works, because there is a lack of design recommendation. The first step towards the design recommendation is to understand the difference between the headed shear studs and the bolted shear connectors in a push-out test. Push-out tests, according to EN1994-1-1, using 4 M16 - grade 8.8 bolts with embedded nut in the same layout and test set-up as for previously investigated headed studs were performed. Finite element models for both shear connectors were created, and good match with experimental data was obtained. Basic shear connector properties such as: shear resistance, stiffness, ductility and failure modes have been compared and discussed in detail by using experimental and FE results. Parametric FE analyses of shear connector's height are carried out and shear resistance reduction factor has been proposed for bolted shear connectors.
T2  - Journal of Constructional Steel Research
T1  - Bolted shear connectors vs. headed studs behaviour in push-out tests
EP  - 149
SP  - 134
VL  - 88
DO  - 10.1016/j.jcsr.2013.05.003
ER  - 

@article{
author = "Pavlović, Marko and Marković, Zlatko and Veljković, Milan and Buđevac, Dragan",
year = "2013",
abstract = "Prefabrication of concrete slabs reduces construction time for composite steel-concrete buildings and bridges. Different alternatives for shear connectors (bolts and headed studs) are analysed here to gain better insight in failure modes of shear connector in order to improve competiveness of prefabricated composite structures. Casting of high strength bolted shear connectors in prefabricated concrete slabs offers the higher level of prefabrication comparing to a standard method of grouting welded headed studs in envisaged pockets of concrete slabs. In addition, bolted shear connectors can easily be dismantled together with the concrete slab thus allowing the improved sustainability of the construction, simpler maintenance, and development of modular structural systems. Bolted shear connectors have been rarely used in construction, actually just for rehabilitation works, because there is a lack of design recommendation. The first step towards the design recommendation is to understand the difference between the headed shear studs and the bolted shear connectors in a push-out test. Push-out tests, according to EN1994-1-1, using 4 M16 - grade 8.8 bolts with embedded nut in the same layout and test set-up as for previously investigated headed studs were performed. Finite element models for both shear connectors were created, and good match with experimental data was obtained. Basic shear connector properties such as: shear resistance, stiffness, ductility and failure modes have been compared and discussed in detail by using experimental and FE results. Parametric FE analyses of shear connector's height are carried out and shear resistance reduction factor has been proposed for bolted shear connectors.",
journal = "Journal of Constructional Steel Research",
title = "Bolted shear connectors vs. headed studs behaviour in push-out tests",
pages = "149-134",
volume = "88",
doi = "10.1016/j.jcsr.2013.05.003"
}

Pavlović, M., Marković, Z., Veljković, M.,& Buđevac, D.. (2013). Bolted shear connectors vs. headed studs behaviour in push-out tests. in Journal of Constructional Steel Research, 88, 134-149.
https://doi.org/10.1016/j.jcsr.2013.05.003

Pavlović M, Marković Z, Veljković M, Buđevac D. Bolted shear connectors vs. headed studs behaviour in push-out tests. in Journal of Constructional Steel Research. 2013;88:134-149.
doi:10.1016/j.jcsr.2013.05.003 .

Pavlović, Marko, Marković, Zlatko, Veljković, Milan, Buđevac, Dragan, "Bolted shear connectors vs. headed studs behaviour in push-out tests" in Journal of Constructional Steel Research, 88 (2013):134-149,
https://doi.org/10.1016/j.jcsr.2013.05.003 . .

TY  - JOUR
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Veljković, Milan
AU  - Buđevac, Dragan
PY  - 2013
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/517
AB  - Precast concrete slabs connected to the steel beams by headed shear studs arranged in groups may be used in high-rise office buildings to speed up construction process and improve quality by increasing the grade of industrialization. The paper presents experimental research performed on push-out tests at the Faculty of Civil Engineering University in Belgrade. The main goal has been to investigate possible reductions of shear stiffness and strength of five group arrangements consisting always of four headed shear studs, the shank diameter 16 mm and 100 mm height. A shape of group arrangement and its orientation to the applied load, and distance between the studs were variables considered. Intention was to have as small as possible holes in precast concrete slabs so the distance between studs was lower than minimum required in Eurocode 4. Comparison is made with results obtained on specimen with uniformly distributed shear studs, according to requirements of the standard arrangement. Material characteristics were obtained and push-out tests were preformed in procedures that fully comply with Eurocode 4. Experimental results were evaluated according to the design models in Eurocode 4 and available literature. Recommendations for use of the group arrangements were proposed.
T2  - Advanced Steel Construction
T1  - Push-out experiments of headed shear studs in group arrangements
EP  - 160
IS  - 2
SP  - 139
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_grafar_517
ER  - 

@article{
author = "Spremić, Milan and Marković, Zlatko and Veljković, Milan and Buđevac, Dragan",
year = "2013",
abstract = "Precast concrete slabs connected to the steel beams by headed shear studs arranged in groups may be used in high-rise office buildings to speed up construction process and improve quality by increasing the grade of industrialization. The paper presents experimental research performed on push-out tests at the Faculty of Civil Engineering University in Belgrade. The main goal has been to investigate possible reductions of shear stiffness and strength of five group arrangements consisting always of four headed shear studs, the shank diameter 16 mm and 100 mm height. A shape of group arrangement and its orientation to the applied load, and distance between the studs were variables considered. Intention was to have as small as possible holes in precast concrete slabs so the distance between studs was lower than minimum required in Eurocode 4. Comparison is made with results obtained on specimen with uniformly distributed shear studs, according to requirements of the standard arrangement. Material characteristics were obtained and push-out tests were preformed in procedures that fully comply with Eurocode 4. Experimental results were evaluated according to the design models in Eurocode 4 and available literature. Recommendations for use of the group arrangements were proposed.",
journal = "Advanced Steel Construction",
title = "Push-out experiments of headed shear studs in group arrangements",
pages = "160-139",
number = "2",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_grafar_517"
}

Spremić, M., Marković, Z., Veljković, M.,& Buđevac, D.. (2013). Push-out experiments of headed shear studs in group arrangements. in Advanced Steel Construction, 9(2), 139-160.
https://hdl.handle.net/21.15107/rcub_grafar_517

Spremić M, Marković Z, Veljković M, Buđevac D. Push-out experiments of headed shear studs in group arrangements. in Advanced Steel Construction. 2013;9(2):139-160.
https://hdl.handle.net/21.15107/rcub_grafar_517 .

Spremić, Milan, Marković, Zlatko, Veljković, Milan, Buđevac, Dragan, "Push-out experiments of headed shear studs in group arrangements" in Advanced Steel Construction, 9, no. 2 (2013):139-160,
https://hdl.handle.net/21.15107/rcub_grafar_517 .