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中文摘要：
在已有的研究基础上通过考虑多阶振型质量积的水平力分布形式下的推覆分析，将结构推至每阶振型下的目标位移，采用SRSS组合的方式得到结构的响应。对应每阶振型下推覆分析的目标位移采用弹塑性反应谱来计算。对一高层钢框架-混凝土核心筒混合结构在7度罕遇地震下抗震性能进行了评估，结果显示，多模态静力推覆分析所得的结构响应同非线性动力时程分析所得结果很接近，尤其是在层间位移角及层间剪力这两个重要抗震指标上更为接近。
英文摘要：
A multi-mode pushover analysis procedure is summarized and evaluated herein, which envelopes multi-mode shapes and uses SRSS combination to get the structural response. The target displacement of each mode in pushover analysis can be obtained with inelastic spectrums. A hybrid structure is used to evaluate numerically the accuracy of the proposed analysis procedure by comparing the push-over structural responses with the results of the nonlinear history analysis （NHA）. It is demonstrated that the structural responses of the proposed pushover analysis are generally similar to the results from the NHA, especially in story drift and shear, which are the most critical index in earthquake resistant evaluation.
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