（同济大学建筑工程系，上海 200092）
［摘要］通过分析基于概率抗震性能评估方法的技术框架，确定该方法的基本假定。基于典型钢框架动力弹塑性计算结果的统计分析，证明基于我国规范设计的钢框架结构符合该方法的基本假定。因此，基于概率抗震性能评估方法适用于基于我国规范设计的钢框架结构的抗震性能评估，并采用该方法建立钢框架结构层间位移角风险曲线，对钢框架结构达到“大震不倒”抗震目标的能力给予概率意义上的量化。
［关键词］钢框架；基于概率抗震性能评估；层间位移角风险曲线
中图分类号：TU352-1文献标识码：A文章编号：1002-848X(2012)03-0057-04
Probabilistic performance-based seismic evaluation of steel frame
Chen Meng，Shen Zuyan(Department of Building Engineering, Tongji University, Shanghai 200092, China)
Abstract:By analyzing the technical framework of probabilistic performance-based seismic evaluation method, the basic assumptions were determined. Based on the statistical analysis of dynamic elastic-plastic analysis result of typical steel frame, it is proved that China code-designed steel frame agrees with the basic assumptions. Therefore, probabilistic performance-based seismic evaluation method is adequate for seismic performance evaluation of China code-designed steel frame. According to the method, drift hazard curve of steel frame was established. The probability of ability steel frame reaching anti-collapse performance level under rare earthquake was quantified.
Keywords:steel frame; probabilistic performance-based seismic evaluation; drift hazard curve
作者简介：陈猛，博士研究生，工程师，Email:chmdoittt@gmail.com。
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