Experiment on seismic performance of prefabricated beam-column joints with kinded rebar
In order to transfer the plastic hinge of prefabricated frame beam-column joints and avoid the"strong beam and weak column"failure mode caused by shear failure in the core area of the joints,a new type of prefabricated specimens and contrast pieces with kinded rebar were designed;The quasi-static loading test is carried out to compare and analyze the differences in hysteretic characteristics,stiffness,bearing capacity,energy dissipation and deformation capacity,and explore the seismic performance under low cycle reciprocating load.The results show that the overall deformation of the new joint is mainly caused by the deformation of the kinded rebar segment,and the core area is not damaged.The transfer of the plastic hinge is successfully realized,and the new joint has better energy dissipation and deformation capacity than the comparison specimen.
万方数据
维普
