斗拱型网壳的自振特性分析  

ANALYSIS OF NATURAL VIBRATION CHARACTERISTICS OF BRACKET SET RETICULATED SHELL

作　　者：李志宏[1] 张鸿雁[1,2] 刘坚[2] 彭登峰[2] 

机构地区：[1]广东省建筑设计研究院,广州510010 [2]广州大学,广州510405

出　　处：《钢结构》2012年第12期7-10,共4页Steel Construction

摘　　要：斗拱型网壳结构是一种新型的结构形式,尤其适用于大跨度的空间建筑。对一个跨度为80 m的斗拱型网壳的自振特性进行分析发现,其自振特性与单层球面网壳的自振特性十分相似,自振频率分布密集,甚至有一些自振频率几近相同。对支座铰接和固接两种情况下斗拱型网壳结构的自振特性进行比较可知,层间的连接方式对其自振特性几乎无影响。The bracket set reticulated shell is a new kind of space structure. Which is very suitable for space structure with needs large span. The natural vibration characteristics of 80 m-span bracket set reticulated shell Were analyzed in this paper. It was found that it is similar to vibration characteristics of single layer and double layer reticulated shell. Distribution o{ natural frequency is intensive and even some are same. Vibration characteristics of 80 m-span bracket set reticulated shell with hinged and fully restrained bearing are studied and contrasted. At last, some useful conclusions to structural design are provided by this article.

关 键 词：斗拱型网壳 自振特性 铰接 固接 

分 类 号：TU399[建筑科学—结构工程] TU311.3