作　　者： ; ; ; ;

机构地区： 广东工业大学土木与交通工程学院土木工程系

出　　处： 《空间结构》 2006年第2期44-48,共5页

摘　　要： 本文分别采用单拱单元和多拱单元子系统,对有支撑和无支撑的两种立体桁架体系进行了稳定性研究,对桁架结构的线弹性稳定性、几何非线性弹性稳定性、弹塑性稳定性和有初始缺陷的桁架结构几何非线性稳定性进行了系统分析,研究结果可以为桁架拱结构的设计提供理论指导和设计参考. Stability analysis for a three-dimensional single truss arch, a sub-structure composed of a series of three-dimensional truss arches and the whole truss arch structure are carried out in the paper. Two different structural systems with and without braces in the sub-structure and the whole structure are considered. The linear stability, the nonlinear and the elasto-plastic stability analysis of both the perfect and the imperfect truss arch structures are investigated. The numerical results can be referenced for the design of truss arch structures in engineering.

关 键 词： 立体桁架拱结构 稳定 初始缺陷

领　　域： [建筑科学]