抗震性能设计方法在某框支剪力墙结构中的应用研究

Application and research of performance -based seismic design method in a frame-supported shear wall structure

以某带高位转换的框支剪力墙结构为例,描述了基于性能的设计方法在结构设计中的具体应用。通过结构在不同地震作用下的整体抗震计算,得到三水准地震作用下的结构响应。对案例结构进行了静力弹塑性(Pushover)分析,给出了侧推过程中结构基底剪力-顶点位移曲线和层间位移角。通过性能点以及出铰情况,对其抗震能力进行了分析,综合评价了其抗震性能,找出了结构的薄弱部位,提出了值得关注的问题及解决措施,实现了性能设计的目标。

In This paper describes the performance-based aseismic design methodology about a frame-supported shear wall structure with high-level transfer storey.Through the overall seismic calculation of the structure under different earthquakes, the structural response under three-level earthquakes is given.A pushover analysis of the structure is then conducted.The base shear force-top displacement curve and the inter-storey drift angle during the pushing procedure are presented.Judging from the performance point and the appearing condition of plastic hinges, the seismic capacity of the structure is studied.A general assessment of the seismic performance of the structure is given.Weak portions of the structure are indicated, the results show that the structure meets performance requirements of design.