基于响应面法的层间隔震结构地震易损性分析

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (15) : 42-48.

论文

基于响应面法的层间隔震结构地震易损性分析

张尚荣1,2，谭平3，杜永峰1,2，周福霖3，赵丽洁1,2

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Seismic fragility analysis of Inter-story isolation structures based on response surface method

Zhang Shangrong1,2, Tan Ping3, Du Yongfeng1,2, Zhou Fulin3, Zhao Lijie1,2

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文章历史 +

摘要

考虑地震动和结构物理参数不确定性，提出一种基于响应面法的层间隔震结构地震易损性分析方法。以中心复合设计方法建立地震动-层间隔震结构样本，对系统样本模型进行非线性动力时程分析，分别建立层间隔震结构各子结构的响应面模型，在此基础上采用蒙特卡洛模拟获得易损性曲线。分析结果表明，本文提出的方法计算量少、精度高，有效提高了易损性分析作为层间隔震结构性能评估的时效性，具有较大的工程应用前景。

Abstract

Considering the uncertainties of ground motions characteristics and structures parameters, this paper proposes a fragility analysis method of inter-story isolation structures based on RSM(response surface method). Using central composite design method to construct a series of samples for various ground motions and inter-story isolation structures, nonlinear dynamic time analysis of the sample model was carried out, and then substructures response surface model of inter-story isolation structure was built. Results shows the proposed method possesses less amount of calculation, high accuracy, effectively improve the efficiency of vulnerability analysis, and is of great engineering application prospects.

导出引用

张尚荣;谭平;杜永峰;周福霖;赵丽洁;. 基于响应面法的层间隔震结构地震易损性分析[J]. 振动与冲击, 2014, 33(15): 42-48

Zhang Shangrong;Tan Ping;Du Yongfeng;Zhou Fulin;Zhao Lijie;. Seismic fragility analysis of Inter-story isolation structures based on response surface method[J]. Journal of Vibration and Shock, 2014, 33(15): 42-48