偏心支撑对轻钢结构住宅抗震性能的影响  

Influence of eccentric brace on seismic performance of lightweight steel structure residence

作　　者：史三元[1] 刘克昭[1] 郑王铭龙[1] 王倩倩[1] 

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038

出　　处：《世界地震工程》2012年第3期19-23,共5页World Earthquake Engineering

基　　金：自然科学基金项目(E2010001012)

摘　　要：偏心支撑钢框架是一种新型的偏心支撑结构,具有良好的刚度、延性及耗能能力。采用非线性有限元分析软件Sap2000建立了一个6层的轻钢结构框架模型,对框架结构分别布置中心支撑、偏心支撑,分别计算了3种结构模型在水平地震作用下的抗震性能,通过对比3种结构模型在荷载作用下的自振周期、加速度及其地震响应,分析了偏心支撑对轻钢住宅抗震性能的影响。Eccentric braced steel frame is a new type of eccentric supporting structure with good stiffness, ductility and energy dissipation capacity. By using nonlinear finite element analysis software Sap2000 , this paper establishes a 6-storey model of lightweight steel.frame,arranges center support and eccentric support in the framework structure respectively and calculates seismic performance of three structures model under horizontal earthquake. By compa- ring the lateral stiffness, natural period and its seismic response of the three structural models under load, it analy- ses the influence of eccentric brace on seismic performance of lightweight steel structure residence

关 键 词：偏心支撑 轻钢结构 抗震性能 地震响应 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]