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（北京首鋼國際工程技術有限公司， 北京 100043）
［摘要］管桁架結構作為大跨度空間結構的一種類型，由于其形式優(yōu)美，造型活潑，在火車站、航站樓、體育館和展覽館等公共建筑中得到了廣泛的應用。在工業(yè)建筑領域，國家倡導節(jié)能減排，降低污染能耗，鋼鐵廠需要建設儲煤棚結構用來降低煤場粉塵污染，并需要足夠大的空間保證堆取料機在儲煤棚內流暢工作。針對某廠區(qū)空間管桁架儲煤棚結構采用MIDAS/Gen有限元軟件進行分析，按主桁架節(jié)點和輔助桁架節(jié)點的形式不同分為全部剛接、全部鉸接、主桁架節(jié)點剛接和輔助桁架節(jié)點鉸接三種模型進行模擬，對比分析結果，選擇最為經濟合理的方案供工程應用。
［關鍵詞］空間管桁架結構； 節(jié)點形式； 強度分析； 屈曲分析； 非線性分析； 幾何初始缺陷；經濟性指標
中圖分類號： TU323.4 文獻標識碼： A 文章編號： 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
作者簡介：鄭宇，碩士，工程師，Email:11062034@163.com。
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