摘要
本文采用几何非线性有限元理论 ,对带肋局部双层球面网壳的几何非线性稳定性进行了深入系统的研究 ,包括网壳结构参数 (矢跨比、厚度 )、解析模型、边界条件等对屈曲承载力大小与稳定行为特征的影响。
This paper uses the geometrically nonlinear finite element theory to investigate comprehensively the stability behavior for the partial double layer ribbed lattice spherical domes, including the critical load and buckling behavior variations with respect to the structural parameter changes (rise span ratio, truss height), various analytical models and different boundary conditions. Many important practical conclusions have been obtained from a series of numerical results.
出处
《空间结构》
CSCD
2001年第3期33-40,共8页
Spatial Structures
基金
国家自然科学基金资助项目 (5 9895 4 10 )
关键词
局部双层网壳
稳定分析
几何非线性
partial double layer lattice shell
stability analysis
geometrically nonlinear
