机构地区: 广东工业大学建设学院
出 处: 《广东工业大学学报》 2003年第3期1-4,13,共5页
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.
领 域: [建筑科学]