Seismic Performance Test on Inner Sleeve Splicing Joints Between Modules of Modular Steel Frame
Three full-size modular steel frame specimens with inner sleeve connection between modules were designed.The pseudo-static low-cycle reversed loading tests were carried out for the seismic performance of the specimens.The seismic performance indexes of the specimens,such as hysteretic curve,skeleton curve,ductility,energy dissipation,stiffness degradation,inter-story drift and rotational stiffness,were studied,and the parameters affecting the seismic performance of the specimens were analyzed.The results show that the hysteresis area of the specimen is full and fusiform,which indicates that the specimen has strong energy dissipation capacity.All three specimens show significant stiffness degradation and gentle descending slope.The inter-story drift of the three specimens are 0.085 rad,0.082 rad and 0.096 rad,respectively,indicating that the specimens have good rotational ability and ductility,and meet the seismic design requirements of the joint.The failure characteristics of the specimens show that the seismic performance of the joints can be significantly improved by installing an internal partition at the corresponding position of the upper and lower flange of the inner beam of the module column.
国家科技期刊平台
NSTL
万方数据
