中南大学学报（自然科学版）2017，Vol.48Issue(6)：1645-1650,6.DOI:10.11817/j.issn.1672-7207.2017.06.031
基于性能的平面不规则结构地震易损性分析
Performance-based seismic fragility analysis of plane irregular structure
摘要
Abstract
A performance-based method to calculate fragility functions of plane irregular RC frame-shear-wall structures was proposed.Using the method of performance-based static elastoplastic pushover analysis,according to definition of the ultimate damage states of the structure,four performance level limits of threshold values of inter-story drift angles and inter-story torsion angle were proposed.Structural seismic response was obtained through nonlinear dynamic time history analysis.Concerning conception of the probability of exceedance,the analytical solutions were proposed with performance level limits.Combined with the peak ground acceleration and the probability of exceedance,the performance-based seismic fragility analysis was carried out using this method,and fragility curves were derived to assess and compare the seismic performances of the structure.The results show that torsion response should be considered for analyzing irregular RC frame-shear-wall structures.关键词
平面不规则框剪结构/层间位移角/层间扭转角/性能水平/地震需求分析/易损性曲线Key words
plane irregular frame-shear-wall/inter-story drift angle/inter-story torsion angle/performance level/seismic demand analysis/fragility curve分类
建筑与水利引用本文复制引用
黄小宁,杜永峰,李慧..基于性能的平面不规则结构地震易损性分析[J].中南大学学报（自然科学版）,2017,48(6):1645-1650,6.基金项目
国家自然科学基金资助项目(51578274,51178211) Projects(51578274,51178211) supported by the National Natural Science Foundation of China) （51578274,51178211）
