论文部分内容阅读
洪山体育馆屋盖系统(84×66m的长八边形)采用空间立体桁架承重结构,桁架最大跨度为66m,屋面柃条及平顶龙骨均为型钢,屋面荷载188kg/M~2,(见图1)。本文着重介绍该馆屋盖承重结构的选型、桁架的外形、腹杆形式和高度的合理选择、桁架的内力分析、桁架节点构造。
The Hongshan Stadium roof system (84-66m long octagon) adopts a three-dimensional space truss load-bearing structure. The maximum span of the truss is 66m. The roof purlins and flat top keels are steel and the roof load is 188kg/M~2. 1). This article focuses on the selection of the load-bearing structure of the roof of the museum, the appearance of the trusses, the rational selection of the form and height of the webs, the analysis of the internal forces of the trusses, and the structure of the truss joints.