防灾减灾工程学报2011，Vol.31Issue(5)：542-547,6.
基础隔震结构抗震可靠度简化分析方法
A Simplified Analysis Method for Evaluating Seismic Reliability of Base Isolated Structures
摘要
Abstract
A stationary power spectral model presented by Hu Yuxian is selected as a random earthquake excitation for base-isolated structures. The story hysteretic drifts of the base-isolated structures are described by Bouc-Wen model. The equivalent linearized state equation is established after equivalent linearization of dynamic property matrixes of hysteretic system. By introducing left and right eigenvector series , the vibration differential equation is decoupled and the analytical solutions of response statistical moments of structures are found. In accordance with the deformation failure criterion, the limit states of base-isolated structures are defined. On the basis of the first passage mechanism, the hypothesis about Possion distribution,and the series connection reliability model, a simplified method for evaluating the seismic reliability of base-isolated structures on the whole is presented. Finally, a frame structure with base isolation is given for numerical illustration of the proposed method.关键词
基础隔震结构/等效线性化/随机响应/抗震可靠度Key words
base isolated structures/ equivalent linearization/ random response/ seismic reliability分类
建筑与水利引用本文复制引用
孙广俊,李爱群,李鸿晶..基础隔震结构抗震可靠度简化分析方法[J].防灾减灾工程学报,2011,31(5):542-547,6.基金项目
地震行业科研专项经费项目(200808081)、江苏省属高校自然科学研究重大研究项目(10KJA560012) （200808081）
