砌体结构抗震性能评估方法对比研究
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摘要
本研究采用等代框架模型,利用Pushover法对某6层砌体结构在多遇、罕遇地震作用下的抗震性能进行评估,并与建筑抗震设计规范(GB50011—2010)中振型分解反应谱法、时程分析法的分析结果进行比较。结果表明:3种方法的评估结果差异不大,但Pushover法能够提供罕遇地震作用下结构的薄弱环节位置,可为结构抗震设计、加固提供更多参考。
Based on the simplified model of masonry structure-equivalent frame,the seismic performance of six-layer masonry structure was performed by Pushover,which was subjected to frequently and rare earthquake.The analytical results was compared with code for seismic design of buildings(GB50011—2010),which include the response-spectrum method and timehistory method.The result shows that it has a little difference to evaluate results of masonry structure by different methods,but the weak place could be provided when the masonry structure was subjected to rare earthquake by Pushover,and the result is beneficial to structure seismic design and strengthening.
引文
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