Research on Seismic Performance of Assembled Internal L-shaped Shaped Column Joints
In order to explore the seismic performance of assembled L-shaped shaped column joints,L-shaped beam-column joints with circu-lar steel tube concrete joints were used to simulate the seismic performance of repeated loads under different coaxial pressure ratios.The results show that specimens A,B and C all experienced the emergence and expansion of cracks under seismic load,which eventually led to the flexural shear failure of the beam end.Specimens A and B showed joint looseness in the early loading stage,and the degree of joint looseness gradually intensified with the increase of loading,and finally led to the overall failure.However,in the late loading stage of specimen C,joint loosening occurred,and the overall loosening degree was relatively low,but it eventually led to the failure of the specimen.Therefore,the seismic design of prefabricated internal L-shaped column joints should be comprehensively considered and optimized from the aspects of structural design,ma-terial selection and reinforcement,reinforcement measures and technical innovation,so as to improve the seismic performance of the joints and the safety of the whole structure.
Prefabricated structureBuilt-in L-shaped shaped columnSeismic performance of jointSeismic test
国家科技期刊平台
NSTL
万方数据
