基于能量设计的K型偏心支撑钢框架抗震倒塌富余度  

The seismic anti-collapse margin ration of K-shape EBSFs designed based on energy

作　　者：刘美子 顾强[1] LIU Meizi;GU Qiang(School of Civil Engineering,SUTS,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《苏州科技大学学报（工程技术版）》2018年第1期1-7,14,共8页Journal of Suzhou University of Science and Technology（Engineering and Technology Edition）

基　　金：国家自然科学基金项目(51278320)

摘　　要：采用增量动力时程分析法,依据美国FEMAP695的结构抗地震倒塌性能评估体系,对按文献[1]基于能量性态设计方法设计的K型偏心支撑钢框架进行了抗地震倒塌富余度及易损性分析,以评估此设计方法的可行性。结果表明:文献[1]基于能量性态设计方法设计的两个K型偏心支撑钢框架的抗震倒塌富余度CMR值及易损性指标均满足要求,表明文献[1]提出的基于能量性态设计方法是可信的。The seismic anti-collapse capacity and the collapse probability of the performance-based seismic design method of the K-shape EBSFs are studied according to the seismic collapse assessment system of FEMAP695 and incremental dynamic analysis method,which is used to estimate the feasibility of the method from the literature1.The results showed that the seismic anti-collapse margin ration of K-shape EBSFs is more than the minimum acceptable requirements.The reliability and accuracy of this new design method from the literature1 were proved.

关 键 词：K型偏心支撑钢框架 地震倒塌 增量动力时程分析 倒塌富余度 

分 类 号：TU391[建筑科学—结构工程]