(1 中旭建筑设计事务所，北京 100044；2 中国建筑设计研究院，北京 100044)

［摘要］介绍了某超大跨度伸臂立体管桁架结构的风洞试验、方案论证、结构计算分析、节点承载力验算、支座节点承载力验算和试验等。该结构建成后一段时期的正常使用表明，工程的主体桁架和下部承力结构具备较强的承载变形能力和可靠的安全度，满足设计规范和实际使用要求。

［关键词］超大跨度伸臂矩形立体管桁架；风洞试验；节点;预应力; 型钢混凝土；斜柱

Structure design and analysis on a super-span stretched stereoscopic steel pipe trussing

Yu Yuanpeng¹, Zhao Licheng¹, Lü Xiaojing², Kong Yasha²(1 Zhongxu Building Design Business Office；2 China Building Design and Research Institute, Beijing 100044, China)

Abstract:The wind tunnel experiment，project argument，structure calculation analysis, calculation of the joint bearing capacity, calculation and experiment of the support-joint load carrying capacity of a super-span stretched stereoscopic steel pipe trussing are introduced- A normal usage period of the project after it had been built indicates that the major trussing and the supporting structure below have enough bearing capacity and deformability, and meet the demands of design code and actual usage.

Keywords:super-span stretched stereoscopic steel pipe trussing; wind tunnel experiment; joint; prestressed; composite steel and concrete; diagonal column

作者简介：喻远鹏，高工，一级注册结构工程师。

参考文献

［1］株洲市体育中心雨篷屋面平均风压系数风洞试验研究［R］. 同济大学土木工程防灾国家重点风洞试验室，2004.

［2］株洲市体育中心体育场屋面桁架支座球节点足尺模型承载力试验报告［R］.同济大学土木工程防灾国家重点风洞试验室, 2005.