某工程单层球面网壳结构的稳定性研究

采用自编结构非线性分析程序 ,对某工程肋环形单层球面网壳结构就两种主要工况 (竖向静力荷载组合作用及风荷载组合作用 )进行了失稳全过程分析 ,得到结构多条失稳路径。结果表明 ,结构的几何缺陷将严重影响结构的失稳形式 ,从而影响结构的极限承载能力。

STABILITY ANALYSIS OF A SINGLE-LAYER RETICULATED SPHERICAL SHELL

In this paper, the instability paths of a single layer reticulated spherical shell are investigated by self developed nonlinear analysis program considering the vertical static load combination and wind load combination. The results show that the initial geometrical imperfection of the structure influences heavily its instability forms, which results in an effect on the ultimate load bearing capacity of the structure.