摘要
以世界上最大的网架结构——深圳市民中心屋顶网架结构为工程背景,详细探讨了此类结构的在风荷载作用下的风效应。对于这种自振频率密集型的结构用随机振动理论分析其在脉动风荷载下的动力响应时,不仅要考虑选择主导模态振型,而且不能忽略交叉项的影响。
Wind is the main design load of the large span complicated space truss structures. In this paper, the dynamics behavior of large span complicated space truss structures under wind-excited was discussed in detail with the roof of Shenzhen people center, the biggest space truss structure in the whole world, as the engineering background. The result demonstrated that both the main mode shapes and cross terms between the mode shapes were considered when the wind-excited behavior of structure was analyzed based on random vibration theory.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2007年第2期79-82,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金主任基金项目(50148020)
关键词
大跨度
网架结构
风效应
large span
truss structure
wind-excited behavior
