雁栖湖国际会展中心结构设计
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（北京市建筑设计研究院有限公司， 北京 100045）［摘要］雁栖湖国际会展中心采用钢骨混凝土框架-钢筋混凝土剪力墙体系。圆形主会场屋盖跨度为84m，采用了放射状鱼腹式空间桁架体系和混凝土屋面板的大跨度重型屋盖体系，施工工艺为在地面组装和浇筑混凝土，之后整体同步提升。主会场楼面结构跨度为45m，采用钢结构楼盖体系，用TMD减振系统改善楼盖的舒适度性能。介绍了结构的主要分析结果和抗震性能化分析结果，以及屋盖结构的方案选型、受力性能、施工方案设计、关键节点设计等，对45m大跨度楼盖结构的方案选型、舒适度性能进行了研究。［关键词］空间桁架; 施工分析; 抗震性能化分析; 大跨度楼盖; 舒适度中图分类号：TU318 文献标识码：A 文章编号：1002-848X(2014)20-0079-05Structural design of Yanqi Lake International Convention CenterZhen Wei, Sheng Ping, Wang Yi, Zhang Wankai, Zhang Moxun(Beijing Institute of Architectural Design, Beijing 100045, China)Abstract: Yanqi Lake International Convention Center adopts steel reinforced concrete frame-reinforced concrete shear wall system. The roof of the circular main convention building with span of 84m adopts large-span heavy roof system of radial fish-belly shaped spatial truss system and reinforced concrete slab. The construction method of the roof is assembling on the ground and lifting integrally afterwards. The floor system of the great hall with 45m span adopts steel structural system and TMD energy-dissipated system to improve the comfort performance. The main analysis results and the performance-based seismic analysis results of the structure were introduced as well as the scheme selection, mechanical performance, construction scheme design and key joint design of the roof structure. The scheme selection and comfort performance of 45m span floor structure were studied.Keywords: spatial truss; construction analysis; performance-based seismic analysis; large-span floor; comfort作者简介：甄伟，硕士，教授级高级工程师，Email: zhenw@biad.com.cn。参考文献［1］GB 50223—2008 建筑工程抗震设防分类标准［S］. 北京：中国建筑工业出版社，2008.［2］DGTJ 082056—2009 重型结构（设备）整体提升技术规程［S］. 上海：上海市建筑建材业市场管理总站，2009.［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.［4］GB 50011—2010 建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.
