单层铝合金球面网壳的几何非线性稳定分析  

Analysis of Nonlinear Stability of Single Alluminium Alloy Layer Latticed Domes

作　　者：王红[1] 袁兵[1] 李丽娟[1] 唐石丁 

机构地区：[1]广东工业大学建设学院,广东广州510643 [2]中国有色金属工业广东公司,广东广州510080

出　　处：《广东工业大学学报》2003年第3期1-4,13,共5页Journal of Guangdong University of Technology

基　　金：广东省自然科学基金(990148);广东教育厅自然科学重点项目资助(200027);广东工业大学青年基金(022035)

摘　　要：对单层球面网壳进行了几何非线性稳定分析,利用一般空间梁单元的有限元分析,采用特征值屈曲分析预测结构的理论屈曲强度,再以弧长法对结构变形进行全过程跟踪分析,求得极限临界荷载。本文详细分析了40m跨度施威德勒型铝合金网壳在不同荷载作用下的稳定性,以及不同支承条件、不同失跨比对稳定性的影响。An analysis of nonlinear stability of single layer latticed domes has heen carried out based on fi- nite element analysis space beam element. Eigenvalue Buckling method is used to predict the theory buck- ling strength of construct and to obtain the buckling mode. Through arch-length method, the complete- process analysis of construct displacement is studied and the critical load obtained. The stability of single alluminium alloy layer latticed domes under different loads and constrans is studied in details.

关 键 词：单层球面网壳 有限元 稳定分析 

分 类 号：TU395[建筑科学—结构工程]