单层网壳结构稳定性分析

介绍了网壳结构非线性全过程分析的理论和方法,利用大型通用有限元分析程序对单层球面网壳结构进行建模及求解,通过分析单层球面网壳的载荷-位移曲线,对单层球面网壳的失稳形态和稳定性能进行了研究,对影响单层球面网壳稳定性的多种因素进行了分析和总结,指出影响单层球面网壳稳定性的几个主要因素,较精确地确定单层球面网壳结构稳定性极限承载力,提出的简便计算公式。

Stability Analysis of Single Layer Lattice Shell

This paper discusses the theory and methods of the non-linear post buckling analysis on lattice shell structure. The paper models and resolves the single-layer spherical lattice shell a large-scale current finite element analytical program. The unstable state and the stability of the single-layer spherical lattice shell has been fully researched by analyzing the loaddisplacement curve of single-layer spherical lattice shell. Many stable factors having influence on the single-layer spherical lattice shell have been analyzed and concluded. Several main stable factors which have influence on single-layer spherical lattice shell have been pointed.