（苏州设计研究院股份有限公司， 苏州 215021）

［摘要］苏州国际教育园体育中心为平面及竖向特别不规则的结构，其中篮球馆为大跨度屋面，采用型钢混凝土柱+管桁架为主要受力构件的轻钢屋面体系。采用一端固定支座、一端带滑动支座的管型材三角空腹钢桁架，充分发挥空间桁架优势，不仅满足建筑立面效果和净高要求，而且释放温度应力；对建筑要求的大外挑立面，也提出相应的结构对策；对主体结构的总装模型，通过多软件的比较分析、弹性时程分析、静力弹塑性分析、对关键构件进行抗震性能化设计及采取相应抗震措施后的结果表明，结构具有充分的抗震能力。

［关键词］特别不规则; 大外挑; 大跨度; 管桁架; 滑动支座

中图分类号：TU392.1，TU393.3文献标识码：A文章编号：1002-848X(2014)01-0016-04

Structural design of Suzhou International Education Park Sports Center

Miao Pingzhou, Zhang Min

（Suzhou Institute of Architectural Design Co., Ltd., Suzhou 215021, China）

Abstract: Suzhou International Education Park Sports Center is a structure with especially irregular plane and elevation. For large span roof of basketball arena, light steel roof system was adopted with steel reinforced concrete columns and tube trusses as the main components. Because adopting fixed bearing and sliding bearing on the two ends, triangle hollow steel truss with tube sections takes the advantage of spatial truss in fulfilling facade effects, clear height requirements and releasing the thermal stress. Corresponding structural design method was provided for large cantilevered facade. Through comparing analysis of different programs, elastic time-history analysis, static elastic-plastic analysis, seismic performance-based design of critical components and corresponding strengthened measures of the whole model, the seismic performance of the structure was ensured.

Keywords: particularly irregular; large cantilevered structure; large span; tube truss; sliding bearing

作者简介：苗平洲，高级工程师，一级注册结构工程师，Email:miaopingzhou@qq.com。

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