（中国中元国际工程有限公司， 北京 100089）

［摘要］援塞内加尔竞技摔跤场钢罩棚为210m大跨空间拱结构，由主拱、后拱及次桁架组成，介绍了结构方案选型、结构静力、稳定及拱脚节点分析。结果表明，主拱采用菱形截面，后拱及次桁架采用倒三角空间立体桁架，以及纵向次桁架、联系桁架、支撑布置是合理的，杆件截面受力均匀，节点构造简单，结构空间整体性强；采用万向球铰支座的主拱拱脚节点设计合理，能够满足设计要求。

［关键词］援塞内加尔竞技摔跤场； 大跨空间钢结构； 拱桁架； 静力分析； 稳定分析； 节点分析

中图分类号：TU3933文献标识码：A文章编号：1002-848X(2017)02-0028-05

Steel structural design of shed for wrestling stadium aid for Senegal

Meng Yongjie， Wang Jitao， Liu Manhuai， Zhang Su， Zhang Yong， Zhou Tingyuan

(China IPPR International Engineering Co., Ltd., Beijing 100089, China)

Abstract:The steel shed of wrestling stadium aid for Senegal is a 210m large-span spatial steel arch structure that composed of the main arch, rear arch and the sub truss. Structural system selection, structural static analysis, stability and arch foot joint analysis were introduced. The analysis result shows that it′s rational to adopt diamond section in the arch structure, to adopt inverted triangular spatial truss in rear truss and sub truss and to adopt vertical sub truss, linking truss and support arrangement. The cross section of the rod has uniform mechanism, and joint structure is simple and spatial integrity of structure is strong. It′s rational to adopt the universal ball hinged support in the design of the main arch foot joint, and it can meet the design requirements.

Keywords:wrestling stadium aid for Senegal; large-span spatial steel structure； arch truss； static analysis； stability analysis； joint analysis

作者简介：孟永杰，硕士，工程师，一级注册结构工程师，Email：mengyongjie@126.com。