(清华大学建筑设计研究院有限公司,北京 100084)

摘要: 简要介绍了厦门翔安体育交流中心的结构设计及游泳馆顶大跨度楼盖设计,重点介绍了跨度为 63m×72m的篮球馆重载屋面设计,该种植屋面恒荷载约为普通轻质钢屋面荷载的 10 倍,采用 6 种结构方案进行选型对比,提出了一种新型预应力拱形钢桁架结构,该桁架的几何构造完全基于结构的内力分布特征,具有安全、经济、美观的特点.针对大跨重载屋面在恒载作用下产生较大水平支座反力的问题,采用了施工阶段和使用阶段不同类型的支座约束条件,释放了大部分水平力,优化了下部结构的设计.此外,还研究了重要节点如支座节点和预应力拉索张拉端节点的构造,进行了有限元分析;对该项目进行了上下部结构整体协同分析,并有针对性的采取了加强措施.

关键词: 厦门翔安体育交流中心;大跨重载屋盖;拱形预应力钢桁架;水平支座反力;支座约束条件

中图分类号:TU318 文献标志码:A 文章编号:1002-848X(2022)18-0033-08

DOI:10.19701 / j.jzjg.ZJ220043

Roof design of super-span heavy-duty of Xiamen Xiang’an Sports Exchange Center

YANG Xiao,ZHU Duoe,CUI Juan,MIAO Lei,ZHAO Tianwen,YANG Zhenrong

(Architectural Design and Research Institute of Tsinghua University Co. ,Ltd. ,Beijing 100084,China)

Abstract:The structural design of Xiamen Xiang’ an Sports Exchange Center and the design of large-span roof of theswimming pool were briefly introduced,focusing on the design of heavy-duty roof of basketball hall with the span of 63m×72m,the constant load of this planted roof is about 10 times of the load of ordinary light weight steel roof,six structuralsolutions were used for selection and comparison,and a new type of prestressed arch steel truss structure was proposed. Thegeometric structure of the truss is completely based on the internal force distribution characteristics of the structure,whichis safe,economical and beautiful. For the problem of large-span heavy-duty roofs generating large horizontal bearingreactions under constant load,different types of bearing constraints in the construction and use phases were used to releasemost of the horizontal forces and optimize the design of the substructure. In addition,the construction of important nodessuch as bearing nodes and prestressing cable tension end nodes were studied and finite element analysis was carried out;theoverall synergistic analysis of the upper and lower structure was carried out for the project and targeted strengtheningmeasures were taken.

Keywords:Xiamen Xiang’ an Sports Exchange Center;large-span heavy-duty roof cover;arch prestressed steel truss;horizontal bearing reaction force;bearing constraint condition

第一作者:杨霄,硕士,高级工程师,主要从事结构设计工作,Email:1652180060@ qq. com.

[引用本文] 杨霄,朱朵娥,崔娟,等. 厦门翔安体育交流中心大跨重型楼屋面设计[ J]. 建筑结构,2022,52(18):33-40,107. YANG Xiao,ZHU Duoe,CUI Juan,et al. Roof design of super-span heavy-duty of Xiamen Xiang’ an SportsExchange Center[J]. Building Structure,2022,52(18):33-40,107.