具有T单元张拉膜结构的找形分析  

FORM-FINDING ANALYSIS OF TENSION MEMBRANE STRUCTURES WITH T-ELEMENT

作　　者：王勇[1] 魏德敏[1] 

机构地区：[1]华南理工大学土木工程系,广州510640

出　　处：《工程力学》2005年第4期215-219,共5页Engineering Mechanics

基　　金：广东省自然科学基金项目(020940)

摘　　要：论述了张拉膜结构找形分析的力密度法,同时对边界索进行T单元的强化处理;建立了索边界主结点和索网内部T单元结点的静力平衡方程,据此编制了相应的计算软件;对工程实例进行了验算,结果表明,给出的计算结果与德国著名软件EASY的计算结果相吻合。In this paper, the force-density method is used to analyze the initial shapes of tension membrane structures, in which the boundary is treated with T-element. The static equilibrium equations for the main nodes on the cable boundary and the T-element node in the cable net are obtained and solved. A computer program is accomplished. Some numerical results of a practical example are given and compared with that of EASY code. It is found that the results obtained using the present method are in good agreement with that of EASY.

关 键 词：膜结构 力密度法 找形 T单元 EASY软件 

分 类 号：TU351[建筑科学—结构工程]