大跨度单层网壳结构风洞试验研究  

STUDY ON WIND TUNNEL TEST OF LARGE-SPAN SINGLE-LAYER RETICULATED SHELL STRUCTURE

作　　者：林拥军[1] 宋长江[2] 罗楠[1] 李明水[1] 高修建[2] 

机构地区：[1]西南交通大学土木工程学院,成都610031 [2]铁道第三勘察设计院集团有限公司,天津300251

出　　处：《工业建筑》2013年第7期130-134,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(51178400);中央高校基本科研业务费专项资金项目

摘　　要：某站房为单层网壳结构,对其风洞试验结果表明:风在屋盖表面发生局部扰流和紊流并形成回旋涡流,屋盖以受升力为主,最不利位置在陡端底部。结构整体对称而局部构造不对称的大跨度屋盖结构,即使在对称风力作用下,风对屋盖整体影响也是不对称的,这主要是由于表面构造不均匀所致。A station house is a single-layer reticulated shell structure, wind tunnel test results show that the wind in the roof surface localized disturbance and turbulent flow and the formation of convolution vortex, so the roof is subjected mainly to lift the most disadvantageous position is in the steep end bottom. For a large-span roof structure of symmetric overall structure and asymmetric partial structure, even under the action of symmetric wind, the effect of wind on the integral roof is unbalanced, which is produced mainly by the nonuniform surface structure.

关 键 词：大跨度 单层网壳 屋盖 风洞试验 

分 类 号：TU399[建筑科学—结构工程] TU317