To study the residual displacement and hysteretic characteristics of core walls,on the basis of the parameters and pseudo-test results of 23 core walls in China,the residual displacement prediction model of core walls was established by stepwise regression analysis method,whilst some measures of reducing the residual displacement of core walls were proposed.The load and displacement corresponding to the yield point,peak point and ultimate point based on the tri-linear skeleton curve model are calculated and analyzed,and then a hysteretic model of core walls is constructed.The research results show that the proposed residual displacement prediction model and hysteretic model are in good agreement with the test results,which can realistically reflect the hysteretic characteristics of core walls,make up for the deficiency of research on hysteretic model for core tubes in China,and can also provide some theoretical basis for the field of elastic-plastic analysis as well as residual displacement control for core walls.
关键词
核心筒/残余位移/三折线骨架曲线模型/恢复力模型
Key words
core walls/residual displacement/tri-linear skeleton curve model/hysteretic model
维普
万方数据