摘要
介绍了一类特殊的局部双层网壳形式——周围双层中部单层球面网壳的构成、特点与形式 .主要以凯威特型球壳为研究对象 ,分析了单层区域大小对网壳稳定行为特征的影响 ,单层区自身稳定特性 ,开洞双层屈曲特征 ,不同解析模型球壳屈曲载荷的变化规律 ,以及支承刚度对屈曲载荷的影响 .
The formations, structural characteristics and styles were proposed for a particular new kind of partial double layer spherical reticulated domes (PDLSRD), which is the central single layer and peripheral double layer reticulated spherical dome. This paper focuses on the buckling analysis for Kiewitt spherical lattice domes. The effects of single layer scope on buckling loads were investigated. And the stability performances of the domes with central single layer only and opens were also analyzed, respectively. Furthermore, the detailed comparison analysis were performed to seek the inherently buckling rules for both analytical model variations and support stiffness.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2002年第3期436-440,共5页
Journal of Shanghai Jiaotong University
基金
国家自然基金"九五"重大项目分项 ( 5 9895 410 5 .3.5 )
关键词
单层球面网壳
稳定性分析
局部双层球壳
凯威特型球壳
支承刚度
partial double layer reticulated spherical dome
stability analysis
Kiewitt spherical dome
support stiffness
