（北京首钢国际工程技术有限公司， 北京 100043）

［摘要］管桁架结构作为大跨度空间结构的一种类型，由于其形式优美，造型活泼，在火车站、航站楼、体育馆和展览馆等公共建筑中得到了广泛的应用。在工业建筑领域，国家倡导节能减排，降低污染能耗，钢铁厂需要建设储煤棚结构用来降低煤场粉尘污染，并需要足够大的空间保证堆取料机在储煤棚内流畅工作。针对某厂区空间管桁架储煤棚结构采用MIDAS/Gen有限元软件进行分析，按主桁架节点和辅助桁架节点的形式不同分为全部刚接、全部铰接、主桁架节点刚接和辅助桁架节点铰接三种模型进行模拟，对比分析结果，选择最为经济合理的方案供工程应用。

［关键词］空间管桁架结构； 节点形式； 强度分析； 屈曲分析； 非线性分析； 几何初始缺陷；经济性指标

中图分类号： TU323.4    文献标识码： A    文章编号： 1002-848X(2015)S2-0446-05

Analysis and research on rod nodes of space tubular truss structure

Zheng Yu, Zhang Xiaolun, Zhou Fuqing, Bi Lubo

(Beijing Shougang International Engineering Technology Co., Ltd., Beijing 100043, China)

Abstract: Tubular truss structure is a type of large span space structure, because of its beautiful form, lively model, it has been widely used in the train station, the terminal building, stadium and exhibition hall and other public buildings. In the field of industrial architecture, the national advocate energy-saving and emission reduction, reduce pollution and energy consumption. Iron and steel plant need to build coal storage to reduce the coal yard dust pollution, and need plenty of space to ensure the stacker and reclaimer to work fluently in coal storage shed. MIDAS/Gen software was used to finite analysis a factory space tubular truss structure for coal storage shed according to different forms of the main truss nodes and auxiliary truss nodes, divided into three models, all rigid, all articulated and all the main truss nodes rigid and auxiliary truss nodes articulated, and then compare and analysis the results to gain the most economical and reasonable scheme for the engineering application for selection.

Keywords: space tubular truss structure; nodes form; strength analysis; buckling analysis; nonlinear analysis; initial geometric imperfections; economic index

 作者简介：郑宇，硕士，工程师，Email:11062034@163.com。