MG(南汽)展示厅异型单层网壳设计与稳定性分析  

STABILITY ANALYSIS AND DESIGN OF SINGLE LAYER SPECIAL LATTICED SHELL FOR EXHIBITION HALL OF MG

作　　者：姚东生[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《工业建筑》2008年第z1期589-591,580,共4页Industrial Construction

摘　　要：利用几何非线性有限元方法研究空间网壳结构的稳定性。在介绍几何非线性有限元法的一般列式(T.L)的基础上,推导了三维空间梁单元的切线刚度矩阵,在求解非线性方程时分别采用了弧长法,得到了空间网壳结构全过程P-Δ曲线。The stability analysis of special spatial structures is studied by the use of nonlinear geometric finite element method. On the basis of introduced geometric nonlinear finite element in T.L Formulation,the Tangential stiffness matrix of three dimensional beam element is deduced,and the arc-length method is utilized to solve the nonlinear equation systems,a total P-Δ curve of spatial structure is obtained.

关 键 词：几何非线性 网壳结构 稳定性 

分 类 号：TU399[建筑科学—结构工程]