中文摘要：

Pushover分析方法是逐渐得到广泛应用的一种评估结构抗震性能的简化方法。由于型钢混凝土（SRC）构件塑性铰属性确定方面的原因，SRC构件难以直接应用于pushover分析方法，而常采用按“等刚度”原则转化为钢筋混凝土构件（RC）进行计算。本文从理论上给出了SRC压弯构件N-M相关曲线、Mx-My相关曲线的形成方法，提出了SRC构件M-φ曲线的确定及转化为塑性铰曲线的原则，并研究了SRC构件塑性铰区等效长度的计算方法，可为SRC结构进行pushover分析提供参考数据。按照本文方法，采用pushover方法对两跨三层SRC框架进行分析，结果与该结构模型振动台实验吻合较好。在此基础上，对10层SRC框架和采用刚度等效的3层、10层的钢筋混凝土（RC）框架进行了对比分析，结果表明，随着层数的增加，SRC结构相对于RC结构表现出更优越的抗震耗能能力。

英文摘要：

Pushover analysis is a simplified method for structure seismic evaluation, which is extensively used gradually. For some problems of the determination of plastic hinge property, it is difficult to carry out pushover analysis directly for steel reinforced concrete （ SRC ） structure, which is often substituted by reinforced concrete （ RC ） member with equal rigidity when pushover analysis is needed. This paper presents some computing methods of N- M, Mx-My interrelated curves of SRC members theoretically, gives the determination means of M-φ curve of SRC member, puts forward the principle to form M-φ curve of PMM hinge transformed from that of SRC member, and provides the calculation formula of plastic hinge length, all of which may be referenced for SRC structure pushover analysis. According to the proposed method in this paper, pushover analysis is performed for a SRC frame with two bays and threestories, of which the results are in a good agreement with that of test. In the end, a comparative study is carried out between SRC frame and RC frame with equal rigidity based on the results of pushover analysis, which demonstrates that the SRC structure has predominant seismic behavior over RC structure with the number of structure stories increasing.