单层球面网壳的几何非线性稳定分析  

Nonlinear Stability Analysis of Single Layer Latticed Domes

作　　者：王红[1] 李丽娟[1] 朱艳峰[1] 

机构地区：[1]广东工业大学建设学院,广东广州510643

出　　处：《华南理工大学学报（自然科学版）》2003年第z1期107-109,共3页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省自然科学基金资助项目(990148);广东省教育厅自然科学重点资助项目(200027);广东工业大学青年基金资助项目

摘　　要：对单层球面网壳进行了几何非线性稳定分析,利用一般空间粱单元的有限元分析,采用特征值屈曲分析预测结构的理论屈曲强度,并得到屈曲模态,再以弧长法对结构变形进行全过程跟踪分析,求得极限临界载荷。文中还详细分析了50 m跨度K-8型铝合金和钢两种网壳在不同载荷作用下的稳定性。An analysis on nonlinear stability of single layer latticed domes has been carried out based on finite element method of space beam element. Eigenvalue buckling method is used to predict the theoretical buckling strength of structure and obtain the buckling mode. Through arch-length method, the complete-process analysis on structure displacement is studied and the critical load is obtained. The stability of K-8 single layer latticed domes and steel domes under different loads is studied in details.

关 键 词：单层球面网壳 有限元法 稳定分析 

分 类 号：TU311.3[建筑科学—结构工程]