Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load
Authorized Users Only
2020
Article (Submitted Version)
,
Techno Press
Metadata
Show full item recordAbstract
Contemporary design and construction of steel-concrete composite structures employs the use of prefabricated concrete elements and demountable shear connectors in order to reduce the construction time and costs and enable dismantling of elements for their potential reuse at the end of life of buildings. Bolted shear connector with mechanical coupler is presented in this paper. The connector is assembled from mechanical coupler and rebar anchor, embedded in concrete, and steel bolt, used for connecting steel to concrete members. The behaviour and ultimate resistance of bolted connector with mechanical coupler in wide and narrow members were analysed based on push-out tests and FE analyses conducted in Abaqus software, with focus on concrete edge breakout and bolt shear failure modes. The effect of concrete strength, concrete edge distance and diameter and strength of bolts on failure modes and shear resistance was analysed. It was demonstrated that premature failure by breakout of concr...ete edge occurs when connectors are located 100 mm or closer from the edge in low-strength and normal-strength reinforced concrete. Furthermore, the paper presents a relatively simple model for hand calculation of concrete edge breakout resistance when bolted connectors with mechanical coupler are used. The model is based on the modification of prediction model used for cast-in and post-installed anchors loaded parallel to the edge, by implementing equivalent influence length of connector with variable diameter. Good agreement with test and FE results was obtained, thus confirming the validity of the proposed method.
Keywords:
steel-concrete composite structures / shear connectors / mechanical couplers / shear resistance / concrete edge breakout resistance / finite element analysisSource:
Steel and Composite Structures, 2020, 36, 3, 321-337Publisher:
- Techno Press
Funding / projects:
- Research on condition assessment and improvement methods of civil engineering structures in view of their serviceability, load-bearing capacity, cost effectiveness and maintenance (RS-MESTD-Technological Development (TD or TR)-36048)
DOI: 10.12989/scs.2020.36.3.321
ISSN: 1598-6233
WoS: 000555602000006
Scopus: 2-s2.0-85091944529
Collections
Institution/Community
GraFarTY - JOUR AU - Milićević, Ivan AU - Milosavljević, Branko AU - Pavlovic, Marko AU - Spremic, Milan PY - 2020 UR - https://grafar.grf.bg.ac.rs/handle/123456789/2076 AB - Contemporary design and construction of steel-concrete composite structures employs the use of prefabricated concrete elements and demountable shear connectors in order to reduce the construction time and costs and enable dismantling of elements for their potential reuse at the end of life of buildings. Bolted shear connector with mechanical coupler is presented in this paper. The connector is assembled from mechanical coupler and rebar anchor, embedded in concrete, and steel bolt, used for connecting steel to concrete members. The behaviour and ultimate resistance of bolted connector with mechanical coupler in wide and narrow members were analysed based on push-out tests and FE analyses conducted in Abaqus software, with focus on concrete edge breakout and bolt shear failure modes. The effect of concrete strength, concrete edge distance and diameter and strength of bolts on failure modes and shear resistance was analysed. It was demonstrated that premature failure by breakout of concrete edge occurs when connectors are located 100 mm or closer from the edge in low-strength and normal-strength reinforced concrete. Furthermore, the paper presents a relatively simple model for hand calculation of concrete edge breakout resistance when bolted connectors with mechanical coupler are used. The model is based on the modification of prediction model used for cast-in and post-installed anchors loaded parallel to the edge, by implementing equivalent influence length of connector with variable diameter. Good agreement with test and FE results was obtained, thus confirming the validity of the proposed method. PB - Techno Press T2 - Steel and Composite Structures T1 - Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load EP - 337 IS - 3 SP - 321 VL - 36 DO - 10.12989/scs.2020.36.3.321 ER -
@article{ author = "Milićević, Ivan and Milosavljević, Branko and Pavlovic, Marko and Spremic, Milan", year = "2020", abstract = "Contemporary design and construction of steel-concrete composite structures employs the use of prefabricated concrete elements and demountable shear connectors in order to reduce the construction time and costs and enable dismantling of elements for their potential reuse at the end of life of buildings. Bolted shear connector with mechanical coupler is presented in this paper. The connector is assembled from mechanical coupler and rebar anchor, embedded in concrete, and steel bolt, used for connecting steel to concrete members. The behaviour and ultimate resistance of bolted connector with mechanical coupler in wide and narrow members were analysed based on push-out tests and FE analyses conducted in Abaqus software, with focus on concrete edge breakout and bolt shear failure modes. The effect of concrete strength, concrete edge distance and diameter and strength of bolts on failure modes and shear resistance was analysed. It was demonstrated that premature failure by breakout of concrete edge occurs when connectors are located 100 mm or closer from the edge in low-strength and normal-strength reinforced concrete. Furthermore, the paper presents a relatively simple model for hand calculation of concrete edge breakout resistance when bolted connectors with mechanical coupler are used. The model is based on the modification of prediction model used for cast-in and post-installed anchors loaded parallel to the edge, by implementing equivalent influence length of connector with variable diameter. Good agreement with test and FE results was obtained, thus confirming the validity of the proposed method.", publisher = "Techno Press", journal = "Steel and Composite Structures", title = "Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load", pages = "337-321", number = "3", volume = "36", doi = "10.12989/scs.2020.36.3.321" }
Milićević, I., Milosavljević, B., Pavlovic, M.,& Spremic, M.. (2020). Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load. in Steel and Composite Structures Techno Press., 36(3), 321-337. https://doi.org/10.12989/scs.2020.36.3.321
Milićević I, Milosavljević B, Pavlovic M, Spremic M. Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load. in Steel and Composite Structures. 2020;36(3):321-337. doi:10.12989/scs.2020.36.3.321 .
Milićević, Ivan, Milosavljević, Branko, Pavlovic, Marko, Spremic, Milan, "Bolted connectors with mechanical coupler embedded in concrete: Shear resistance under static load" in Steel and Composite Structures, 36, no. 3 (2020):321-337, https://doi.org/10.12989/scs.2020.36.3.321 . .