鄂尔多斯体育中心综合体育馆钢屋盖设计
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(中国建筑设计院有限公司，北京 100044)［摘要］鄂尔多斯体育中心综合体育馆平面呈椭圆形，长轴为156.8m，短轴为126.6m，周边环绕36根向外倾斜的巨型柱支撑屋顶钢桁架。钢桁架与倾斜巨型柱刚接，钢桁架为整体结构的一部分，与倾斜巨型柱相互支撑、约束，共同承担竖向荷载，抵抗水平荷载。介绍了钢屋盖的结构特点和设计参数，并从主要杆件的应力比、桁架节点及支座节点承载力等多方面说明钢结构屋盖的安全、可靠。［关键词］钢屋盖; 大跨度; 抗震性能设计; 空间桁架中图分类号：TU242, TU392 文献标识码：A 文章编号：1002-848X(2015)01-0058-06Structural design on comprehensive gymnasium steel roof of Ordos Sports CenterLiu Yongbo, You Tianzhi, Zhang Yadong, Bao Weili, Gao Wenjun, Yan Zhongwei(China Architecture Design Institute Co., Ltd., Beijing 100044, China)Abstract: The plane of comprehensive gymnasium of Ordos Sports Center is ellipse with maximum length of 156.8m and minimum length of 126.6m. The steel roof is supported by 36 mega-columns around that incline outwards. The connection between steel truss and mega-column is rigid, so steel truss is part of the overall structure. The steel truss and mega-column support and restrain each other to bear vertical and horizontal loadings. The structure characteristics and design parameters of the steel roof were mainly introduced. The safety and reliability of the steel structure roof was illustrated from aspects of stress ratios of main components, truss joints and bearing capacity of bearing joints.Keywords: steel roof; large span; performance-based seismic design; spatial truss作者简介：刘永波，硕士，一级注册结构工程师，Email：liuyb@cadg.cn。参考文献［1］ 同济大学土木工程防灾国家重点实验室.鄂尔多斯市体育中心项目风洞试验研究与风振分析：体育馆模型测压风洞试验与风振分析［R］.2011.［2］GB 50017—2003 钢结构设计规范［S］.北京:中国计划出版社，2003.［3］JGJ 3—2010 高层建筑混凝土结构技术规程［S］.北京:中国建筑工业出版社，2011.
