开合屋盖结构设计简介

开合屋盖结构在大型体育馆、多用途体育场都得到了广泛应用。开合屋盖结构由于其特有的多个状态,在很多方面不同于以往的常规屋盖结构。本文结合浙江省某网球中心比赛馆开合结构的设计实例,简要介绍了该工程的概况、背景及其结构形式,阐述了开合屋盖结构在结构方面需特别考虑的轨道系统选取的问题,叙述了该实例采用的索牵引系统的运作方式;说明了开合结构与普通结构在荷载取值和工况组合方面的区别;使用独立分析和协同分析两种结构方法计算分析结构,并且以三个方向的变形结果为依据,比较了两种方法,得出了独立分析比较可靠的结论。

Structural design of retractable roof structures

Retractable roof structures have been used widely in building engineering, especially in the field of large-sized gymnasium and multipurpose sport centers. Structures with retractable roofs have many work conditions and so they are different from conventional structures. This paper concisely introduces the general situation and structural form of a retractable roof structure for tennis stadium in Zhejiang province, discusses the rail problem in design of the structure, introduces the pulling method and its different loading cases in comparison with conventional structures. In this project,two kinds of structural analysis methods, the separate analysis method and the cooperating analysis method, have been compared based on the results of the displacements in three directions. The conclusion is that the result obtained from the sparate method is safer.