摘要
北京国际花卉物流港罩棚是前端有较大仰角的马鞍形开敞式覆膜结构,由屋脊桁架、径向倒三角桁架、周边环梁和斜柱组成骨架,上表面采用PTFE张拉膜材。本文结合具体的结构设计,介绍了结构风荷载、雪荷载取值特点,给出结构静力、动力分析及屈曲分析结果,研究了支撑柱计算长度系数取值及节点受力情况,可供类似工程设计参考。
The canopy in trade center of the international flower expo in Beijing is designed as saddle opening style with a big angle of elevation.The main supporting structure is made u Pof roof truss,triangle truss,beams and columns and PTFE material is used as membrane.The wind and snow load is introduced in detail.The static and dynamic analysis,and the buckling analysis of the structure are analyzed.The effective lengths of the columns and the node design are introduced. The experience can be referred by the similar engineering.
出处
《建筑结构》
CSCD
北大核心
2009年第S1期65-69,共5页
Building Structure
关键词
罩棚
风洞试验
静力、动力分析
屈曲分析
计算长度系数
canopy
wind tunnel test
static and dynamic analysis
buckling analysis
effective length
