武汉火车站多管相贯节点试验研究  

Experiment Study on Multi-tube Intersection Joint of Wuhan Railway Station

作　　者：刘曙 王辉 刘家华 蒋官业 

机构地区：[1]中建钢构有限公司,广东深圳518040 [2]中建三局建设工程股份有限公司总承包公司,湖北武汉430064

出　　处：《施工技术》2010年第7期7-9,12,共4页Construction Technology

基　　金：国家科技支撑计划项目--建筑结构高效施工关键技术研究(2006BAJ01B04-05)

摘　　要：武汉火车站屋面结构采用正交正放的网壳结构,节点大多采用相贯节点,相贯节点的支管数目最多达8个,而且个别节点的主管与支管,支管与支管夹角较小,这些特点使节点区的焊接焊缝重叠较多,影响了节点的强度。通过多管相贯节点的单平面加载试验和有限元分析,证明多管相贯节点具有良好的工作性能;相贯节点在特定的加载方式下是安全的,并具有一定的安全储备。Roof structure of Wuhan Railway Station adopts orthogonal spatial latticed shells structure with muhi-tube intersection joints, of which the maximum quantity of branch pipe is eight. Some joints have little angle between main pipe and branch pipe or between branch pipes. So there are many overlapping wielding in joint region which influence on joint＇ s strengthen. Plane load experiment of multi-tube intersection joint and finite element analysis prove that multi-tube intersection joint has fine workability and it is safe under special loading mode and has more safety.

关 键 词：武汉火车站 节点 相贯节点 试验 

分 类 号：TU390.4[建筑科学—结构工程]