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Monotonic behavior of C and L shaped angle shear connectors within steel-concrete composite beams: an experimental investigation

Authors: 

Mahdi Shariati, Farzad Tahmasbi, Peyman Mehrabi, Alireza Bahadori, Ali Toghroli

Source title: 
Steel and Composite Structures, 35(2): 237-247, 2020 (ISI)
Academic year of acceptance: 
2020-2021
Abstract: 

Shear connectors are essential elements in the design of steel-concrete composite systems. These connectors are utilized to prevent the occurrence of potential slips at the interface of steel and concrete. The two types of shear connectors which have been recently employed in construction projects are C- and L-shaped connectors. In the current study, the behavior of C and L-shaped angle shear connectors is investigated experimentally. For this purpose, eight push-out tests were composed and subjected to monotonic loading. The load-slip curves and failure modes have been determined. Also, the shear strength of the connectors has been compared with previously developed relationships. Two failure modes of shear connectors were observed: 1) concrete crushing–splitting and 2) shear connector fracture. It was found that the L-shaped connectors have less shear strength compared to C-shaped connectors, and decreasing the angle leg size increases the shear strength of the C-shaped connectors, but decreases the relative ductility and strength of L-shaped connectors.