高层建筑承受纵向地震波时的安全核算构想  

The Speculation on Safety Check of High Layer Building under Action of Lengthways Earthquake Wave

作　　者：舒晓勇[1] 韦念龙[1] 周晔[1] 

机构地区：[1]中国地质大学机电工程系,武汉430074

出　　处：《安全与环境工程》2003年第1期75-78,共4页Safety and Environmental Engineering

摘　　要：高层建筑可预期的灾变非至一端 ,这里仅探讨高层建筑的抗震性能问题。地震过程中楼体受到的是地震波和自身固有频率的共同作用 ,此时楼体是一个多维动态系统 ,其应力状态比传统方法所描述的力学模型要复杂得多。本文应用 ANSYS三维仿真有限元软件 ,采用单点响应谱的方法 ,对楼体在纵向地震波作用下的应力状态和变形情况进行了分析。对楼体构件单元型式的选择、网格密度的确定、有限元模型的建立等也提出了自己的见解。在后处理中 。This paper discusses the problem of anti earthquake function of high layer buildings.In the process of earthquake,the building bears the joint action of earthquake wave and proper frequency of its own.So the building has become a dynamic system of many dimensions,and its stress state is more complicated than the description in the traditional mechanics model. Adopting ANSYS three dimensions simulation Finite Element Analysis(FEA) software and the method of single point respond spectrum,the paper has analyzed the stress state and deformation of high layer building when it bears lengthways earthquake wave.For the establishment of finite element model,selection of element type,determination of mesh density and other methods in the analysis,the paper has indicated the author's points of view,and shown the building's displacement and stress state by tables and figures in the aftertreatment.

关 键 词：高层建筑 抗震性能 多维动态系统 三维仿真有限元软件 地震波 单点响应谱 

分 类 号：TU714[建筑科学—建筑技术科学]