【摘要】 基于静力弹塑性分析方法和随机振动理论,对框架结构进行了分析研究。通过性能评估的能力谱方法,得出罕遇地震作用下结构的层间位移与损伤状态,再利用改进均值反应谱方法计算结构弹塑性层间最大位移的均方响应和不同损伤状态的概率。利用上述方法对规则框架结构算例进行可靠性分析,结果表明,改进均值反应谱方法可以对评估结构进行进一步的概率分析,对结构抗震性能评估具有一定的意义。更多还原

【Abstract】 Based on the nonlinear static(Pushover) analysis method and random vibration theory,the frame structure is analyzed in this paper.The displacement and damnification in each floor under the rare earthquake are abtained by the capacity spectrum method of performance evaluation,and the mean square response of maximal floor displacement and the probability of each damage state are computed by the improved mean response spectrum analysis method.Using these methods,the reliability analysis for a regular frame structure is carried out.The results show that the improved mean response spectrum analysis method can conduct the further probability analysis for evaluated structure.It possesses a certain of significance in the seismic performance evaluation.更多还原