高层结构考虑竖向地震作用影响抗震性能分析

Aseismic performance analysis on the high structure plastic state under the rare earthquakes action considering the vertical earthquake effect

大悬挑或大跨度高层结构在竖向地震作用下的结构响应较为明显。针对某裙楼悬挑的B级高度高层建筑,考虑三向地震时程作用,对结构进行多向地震作用下的动力弹塑性时程分析,并对其抗震性能进行评估,结果表明,结构整体抗震性能较好,各构件性能水准均能满足性能设计要求。

It is obvious of the response for the long span high structure and cantilever structure under the vertical earthquake. Considering three directions earthquake action as for a B grade high architecture with a long cantilever podium structure,the structure aseismic performance is analyzed by the dynamic elasto-plastic history analysis method. The result is that it is good performance for the whole structure indexes,and the key structure element state can satisfy the performance design requirement.