摘要
分析不同跨度和矢跨比的单层球面网壳，当材料本构关系为弹性和弹塑性，考虑阻尼影响与忽略阻尼，分别计算结构的动力稳定临界力，得到动静比的分布规律。分析材料非线性、阻尼、初始几何缺陷、初始静荷载等因素对结构动力稳定性的影响。提出估算结构动力稳定临界力的简化计算公式。
The reticulated dome with different spans and rise- span ratios are calculated respectively whether the material constitutive relation is elastic or elastoplastic, either including damping or excluding damping in order to get their dynamic stability critical load and its regularity of distribution. The effects of material nonlinearity, damping, initial geometric imperfection and initial static load on structure dynamic stability have been analyzed. The simplified calculating method for estimating structural dynamic critical load has also been suggested.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2001年第1期62-68,共7页
Journal of Building Structures
关键词
单层球面网壳
动力稳定
阶跃荷载
风荷载
single layer reticulated dome, dynamic stability, dynamic stability critical load, step load
