某超高层框架-剪力墙结构抗震性能化设计

Performance-based seismic design of a super high-rise frame shear wall structure

某超限高层框架-剪力墙结构首先采用了SATWE和PMSAP两种有限元软件进行了整体计算分析,计算过程中优化了框架柱布置,并通过增加计算振型数量来提高有效质量系数,从而调整剪重比。计算结果显示,各项指标均满足现行规范要求。然后采用PKPM-SAUSAGE软件进行了动力弹塑性时程分析,结果表明层间位移角满足规范限值要求,确保达到"大震不倒"的抗震设防标准,可为同类超限结构性能化设计提供参考。

Two kinds of finite element software SATWE and PMSAP were adopted to conduct overall calculation analysis on the out of code high-rise frame-shear wall structure firstly. The frame column layout was optimized in calculation process and the effective mass coefficient was improved to adjust the shear-weight ratio by increasing calculating number of vibration modes. The results show that all the indicators meet the current code requirements. Then,the PKPM-SAUSAGE software was used to conduct the dynamic elastic-plastic time-history analysis. The results show that the displacement angle meets the requirement of the code limit requirement and ensures the criterion of seismic fortification of＂not collapsing under rare earthquake＂. It can provide reference for the performance design of the same type out-of-code structure.