【摘要】 采用时程分析方法,分析高层隔震结构在罕遇地震作用下的响应.主要包括结构的塑性变形和塑性发展情况,结构的层间位移及楼层加速度响应.结果表明,在罕遇地震作用下,隔震结构进入塑性的程度较轻,震后稍加修复即可继续使用.塑性铰最先出现在结构底部,逐渐向上层开展.塑性铰均产生在梁端,柱端始终未出铰.楼层位移主要集中在隔震曾层,但上部结构的层间位移很小.罕遇地震作用下结构的楼层加速度显著减小.更多还原

【Abstract】 Seismic response analysis of high-rise isolated structure was under rare earthquake carried out using time-history method.Plastic deformation,story displacement and story acceleration were all included.The results show that plastic deformation has not highly developed and the structure can be used after simple repairation.Plastic hinges appear all at the end of frame beams,and no one is found at the end of frame columns.Story displacement is centralized at isolation layer,and story drift is small on superstructure.Story acceleration is reduced significantly.更多还原