防灾减灾工程学报2017，Vol.37Issue(3)：341-347,7.DOI:10.13409/j.cnki.jdpme.2017.03.002
山地掉层框架结构地震易损性分析
Seismic Vulnerability Analysis of Moment Frames Supported by Stepped Foundation
摘要
Abstract
The typical failure of moment frames with dropped stories is caused by the failure of upper ground story columns.Four model frames were designed and numerically analyzed to evaluate their seismic performance and improvement effect.Research results indicate that the seismic collapse-resistant capacity of frame with dropped stories is weaker than that of general structure.The ductility of upper ground story columns is high for moment frames with dropped stories,which would be destroyed under rare earthquake;the addition of tensile beam has certain influence on the failure mode of moment frames with dropped stories,but not significant.The seismic collapse-resistant capacity of frame with dropped stories can not be improved by the addition of tensile beam.The effect of the failure mode and the seismic collapse-resistant capacity of moment frames with dropped stories and the improved measure are remarkable.This is closer to the common structure.关键词
山地建筑/框架结构/动力增量分析/易损性Key words
building in mountainous city/frame structure/IDA/fragility分类
建筑与水利引用本文复制引用
徐刚,李爱群,陈素芳..山地掉层框架结构地震易损性分析[J].防灾减灾工程学报,2017,37(3):341-347,7.基金项目
国家自然科学基金重点项目(51438002)资助 （51438002）
