扬州跳水游泳馆钢屋盖双向索桁架设计  

Design of Bidirectional Cable Truss on the Steel Roof of Yangzhou Swimming Center

作　　者：刘亦朋[1] 李建伟 张进军 

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092 [2]中建国际(深圳)设计顾问有限公司,广东深圳518048

出　　处：《建筑钢结构进展》2011年第3期42-48,63,共8页Progress in Steel Building Structures

摘　　要：扬州跳水游泳馆下部为3层钢筋混凝土框架结构,上部为钢结构屋面,钢结构屋面东西向长135.5m,南北向长71.7m,为大跨度承重杂交空间结构体系,主要包含正交平面桁架,单层网壳,正交双向索桁架3种空间结构形式。本文重点介绍了该工程中正交双向索桁架的结构布置方案及受力特点,详细给出了双向索桁架的找形分析,各种组合工况下非线性荷载态分析的过程及计算结果,并对两种软件的计算结果进行了分析。文章最后介绍了本工程中采用的大型索结构施工模拟分析方法,详细给出了桁架及网壳安装完成并拆撑、双向索桁架从高空引线就位到膜材安装完成每个施工步骤中结构的内力和位移状态,得到一些有价值的结论,供类似的工程设计参考。Yangzhou Swimming Center is composed of a 3-floor reinforced concrete main structure and a steel roof. The steel roof of Yangzhou Swimming Center is a long-span space hybrid-structure. Its east-west length is 135.5m and south-north length is 71.7m. Tbe steel roof of Yangzhou Swimming Center includes three structural forms, they are bidirectional planar trusses, monolayer lattice shell and bidirectional cabIe trusses. This article primarily introduces the configuration and character of the structure, explicates the shopc-finding analysis, nonlinear loading analysis of the bidirectional cable trusses under diversified loading combinations. At last, the article introduces the staged construction simulation of large cable structure, lists the internal forces and deformations of the bidirectional cable trusses in each construction stage which includes the installation of the trusses and lattice shell and the construction of the membrane. The results and conclusions presented in this paper can be used for references in design of similar projects.

关 键 词：大跨杂交空间结构 索桁架 非线性分析 施工模拟 

分 类 号：TU393.3[建筑科学—结构工程] TU318.04