摘要
根据跃廊式户型,提出悬挂式巨型钢框架住宅。为研究该住宅体系的结构性能,建立三维有限元模型,考虑几何非线性,分别进行了竖向静载分析、水平风载分析、模态分析、反应谱分析和地震动时程分析,并着重考察了时程分析与反应谱分析的比较,以及不同场地类别的影响。结果表明悬挂式巨型钢框架侧移曲线总体呈剪切型;地震动作用下,悬挂结构与主体结构的地震响应存在时间差;时程分析结果的统计值与反应谱分析结果吻合较好。
A suspended mega-steel frame structure was presented for a high-rise building.The three dimensional finite element model was set up,and the static mechanical analysis under vertical and horizontal load,modal analysis,response spectrum analysis and dynamic time history analysis were performed respectively.Further more,the comparison between response spectrum analysis and dynamic time history analysis was made and the differences among different sites were studied deeply.The result indicates that the lateral displacement has the characteristic of shear mode,and a lag exists between the responses of suspended structure and the responses of main structure,and the results from time history method are close to the results from response spectrum method.
出处
《地震工程与工程振动》
CSCD
北大核心
2012年第3期57-66,共10页
Earthquake Engineering and Engineering Dynamics
基金
上海现代建筑设计集团(20061B004-结)
关键词
钢结构
巨型结构
悬挂结构
反应谱
时程分析
steel structure
mega-structure
suspended structure
response spectrum
time history analysis
