门式钢框架结构在地震波谱下的响应分析  

Response of steel portal frame construction under earthquake spectrum

作　　者：宇文晅晅[1] 陈玲[1] 金常忠[1] 

机构地区：[1]天津理工大学机械工程学院,天津300384

出　　处：《天津理工大学学报》2010年第5期20-24,共5页Journal of Tianjin University of Technology

基　　金：天津市第二批建设系统科技发展基金资助项目(2006-44)

摘　　要：以当前关注的房屋结构抗震性能的研究为背景,对钢结构构成的门式框架,采用有限元方法研究其在地震波谱下的响应,使其在地震发生时具有更好的稳定性.根据钢框架结构图,在ANSYS软件中直接进行建模,设置材料参数,划分网格,定义结构的边界条件,然后在该结构上以地震谱形式施加载荷,得出了地震波作用下整体钢框架结构的响应规律以及模态分析的振型和激振频率,为提高结构抗震性能,优化设计,降低生产成本提供可靠的依据.The structure of the housing with aseismatic performance is much concerned currently and it is the background of the study.Corresponding analysis for the characteristics of the steel portal frame structure is carried out under earthquake spectral,making it more steady in the circumstances of earthquake.With finite element method,the modeling,material parameters,mesh division,constraint imposing,load-imposing of earthquake spectral are conducted,the response characteristics of whole steel portal frame structure and natural frequency under earthquake spectral are obtained.It can helpful to improve aseismatic capability and optimization of the design achieved,then,reduce manufacture cost.

关 键 词：门式结构 钢框架 地震波谱 有限元分析 

分 类 号：TH213.5[机械工程—机械制造及自动化]