计算力学学报Issue(2)：199-204,6.DOI:10.7511/jslx201402010
计算近场地震作用下隔震结构支座破坏易损性曲线的概率凸集混合模型
A hybrid probabilistic and convex model for caculating the vulnerability curve of the failure of isolation bearing under near-fault earthquake ground motion
摘要
Abstract
Uncertain parameters of base-isolated structure are described as convex model and uncertain earthquake ground motions are described as probabilistic model ,a new method for calculating vulnerabili-ty curve of the failure of isolation bearing under near-fault earthquake ground motions is presented .The results of the calculation provide reference for the choice of the isolator ’s mechanical parameters ;From calculation and comparison it can been seen that if the uncertainty of structural parameters aren ’t consid-ered ,the earthquake vulnerability of the failure of isolation bearing would been underestimated ;Accord-ing to the sensitivity analysis of the maximum base displacement ,the mechanical parameters of the isola-tion bearing have great influence on the maximum base displacement followed by the mass of super-structure and the influence of the stiffness of superstructure is small .In addition ,the study contents in the dissertation provide a new idea and approach to calculate the earthquake vulnerability curve of vari-ous structures ,considering the uncertainty of structural parameters and earthquake ground motions sim-ultaneously .关键词
隔震结构/近场地震/易损性曲线/支座破坏/凸集Key words
base-isolated structure/near-fault earthquake ground motion/vulnerability curve/bearing fail-ure/convex model分类
建筑与水利引用本文复制引用
樊剑,龙晓鸿,赵军..计算近场地震作用下隔震结构支座破坏易损性曲线的概率凸集混合模型[J].计算力学学报,2014,(2):199-204,6.基金项目
国家自然科学基金（51078166，51278213）；中央高校基本科研业务费专项（2012 T S006）资助项目． （）
