Tensile properties of kinked rebar connectors of double-skin steel-concrete composite structures
Proposing to use the kinked rebar as the connector of the double-skin steel-concrete composite structures,this study designs 12 composite plate unit specimens and carries out the tensile tests.The effect of the diameter and angle of the kinked rebar connector on its mechanical tensile properties is investigated.The results show that the failure modes of the connectors can be divided into two types:fracture after straightening and fracture without straightening.When the kinked rebar connector fails after straightening,the deformation ca-pacity and energy consumption capacity are greatly improved.The failure displacement,breaking force and energy consumption capacity increase with the increase of connector diam-eter and kinked angle,but the kinked angle has little effect on the breaking force.The calcu-lation method of the strength of kinked rebar connectors is proposed in the study,and the calculated results are in good agreement with the test results.Based on the test results,some reasonable suggestions are put forward for the design of kinked rebar connectors of double-skin steel-concrete composite structures.
NETL
NSTL
万方数据
维普
