大跨度单榀拱桁架的非线性稳定分析

采用数值分析方法，研究了大跨度单榀拱桁架的稳定性。在分析中考虑了结构的几何大变形、材料的弹塑性、载荷作用方式和几何缺陷等因素对拱桁架稳定性的影响，通过研究得到了该结构失稳的特点和规律以及各因素的影响关系。

Nonlinear Stability Analysis of Large-span Single Arch Truss

By using the numerical analysis, this paper studies the stability of a large-span single arch truss, When analysis, and in the analysis, considers the influences of the factors are of the large geometrical deformation of the structure, the elasticity and plasticity of the materials, the action mode of the loads, and geometrical defects of the structure, etc. on the stability of the arch truss, and through the research, finds the features and regularities of the instability of the structure and the relationship among all factors.