张弦网壳结构的弹塑性极限承载力及参数分析  

Elastoplastic ultimate load-carrying capacity and parametric analysis of cable-strut-supported shell structure

作　　者：孔丹丹[1] 赵欣[1] 王玲[1] 王喜燕[1] 

机构地区：[1]河北工业大学土木工程学院,天津300401

出　　处：《四川建筑科学研究》2009年第6期42-45,共4页Sichuan Building Science

摘　　要：张弦结构是近年来大跨度空间结构发展的主要结构形式之一。应用非线性有限元方法,对构件主次分布、以弯曲变形为主的张弦网壳结构进行弹塑性极限承载力分析,并分析荷载非对称分布、撑杆高度、预应力大小对结构极限承载力的影响规律,对结构设计提出建议,所得结论对同类结构的分析和设计具有指导意义。Cable-strut-supported rigid structure is one of the most popular structural systems. Nonlinear FEM is used to analyze the ultimate load-carrying capacity of a new type of cable-strut-supported shell structure in which the importance of members are different and the bending deformation is dominating. It＇s parametric analysis concerning unsymmetrical load, height of struts and prestress are also made. Suggestions to designing are presented according to analysis. Conclusions drawn in this paper is valuable to the project alike.

关 键 词：张弦网壳结构 弹塑性 极限承载力 参数分析 

分 类 号：TU394[建筑科学—结构工程]