高层框筒结构抗震性能的动力时程分析与研究

Dynamic time-history analysis of the seismic performance on an out-of-codes high-rise frame-tube structure

某超高层建筑,选用钢筋混凝土框筒结构体系。本文介绍了该工程的概况、结构特点及筛选、确定所用地震波,利用多种分析手段,对不同水准下的结构进行了抗震性能的动力时程分析及其它验证。可得结论,该高层结构具有合理的受力机制,较高的抗震性能,满足抗震规范各项性能指标要求。

The reinforced concrete frame tube system was applied in the main body of a super high - rise building . In this paper, the general situation of the project, the structural characteristics and the selection of seismic waves were introduced. The dynamic time-history analysis and other verification of the structure＇ s seismic performance on different level were carried out by using various analytical methods. The results show that the high-rise structure has reasonable stress mechanism and high seismic performance, which met the requirements of the performance index in the ＂Code for Seismic Design of building＂.