Abstract
Bolted shear connectors are an important component to ensure that steel-concrete composite structures can work together. High-strength bolt shear connectors can replace traditional stud connectors because of their disassembly, good mechanical performance and fatigue resistance. It applied to steel-concrete composite structure. In order to study the influencing factors of the bearing capacity of high-strength bolted shear connectors, this paper uses ABAQUS finite element simulation software as a research tool to establish a reasonable finite element model to study the influence of bolt strength, bolt diameter and concrete strength on bolted shear connectors. Studies have shown that increasing the diameter, strength, and concrete strength of bolted connections can effectively increase the bolt’s shear capacity.
Highlights
The steel-concrete composite structure connects concrete and steel beams through shear connectors, so that it becomes a structural member that can work together
In order to enable the steel-concrete composite structure to form a better whole, people usually set up shear connectors between the steel beam and the concrete
When the concrete strength increases from C30 to C50[8], the bolt shear capacity increases by 10.4%, 5.8%, and 7.9%
Summary
The steel-concrete composite structure connects concrete and steel beams through shear connectors, so that it becomes a structural member that can work together. The steel beam part can serve as a support template for pouring concrete, saving cost and improving efficiency [1,2,3]. In order to enable the steel-concrete composite structure to form a better whole, people usually set up shear connectors between the steel beam and the concrete. The main function is tantamount to resist the slip and longitudinal shear between the steel beam and the concrete structure. It is an important part of the steelconcrete composite structure. This paper uses the verified finite element model to photometrically analyze the shear mechanical properties of high-strength bolts, analyzes the influence of bolt strength, bolt diameter, and concrete strength on the ultimate bearing capacity of bolts, and discusses its deformation characteristics with reference to Mises stress cloud diagram
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