- 摘 要
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（中建中原建筑設計院有限公司， 鄭州 450004）
［摘要］安陽市進口汽車平行銷售7S項目的大跨屋蓋采用主次桁架正交的鋼結構體系，主桁架采用空間三角形桁架，沿短向布置，主桁架平面外采用平面次桁架以保證主桁架的穩(wěn)定性。屋蓋支承于箱形截面鋼柱，采用MIDAS/Gen對結構進行整體分析?？紤]局部復雜節(jié)點受力較大，采用MIDAS/FEA有限元軟件對復雜節(jié)點進行專項分析，并基于分析結果，對薄弱部位采取加強措施。通過合理的結構設計，保障了屋蓋安全。
［關鍵詞］鋼結構； 空間桁架； 桁架受力性能； 節(jié)點分析
中圖分類號：TU391文獻標識碼：A文章編號：1002-848X(2018)17-0018-04
Structural design and analysis of the affiliated roof of a 7S exhibition hall of automobiles
Zhang Haidong, Zhou Heng, Shi Lijuan
(CSCEC Zhongyuan Architectural Design Institute Co., Ltd., Zhengzhou 450004, China)
Abstract:The large-span roof of Anyang 7S sales center of imported automobiles mainly adopts steel structural system of the orthogonal main truss and secondary truss. The main truss is space triangular truss arranged along the short direction and the plane secondary truss is used outside the plane of the main truss to ensure the stability of the main truss. The roof is supported by a box-section steel column. The whole structure was analyzed by MIDAS/Gen software. Considering the large stress of some complex joints, MIDAS/FEA software was used to analyze the mechanical behaviors of the complex joints. Based on the results, strengthen measures were used in the weak parts. The safety of the roof is guaranteed by reasonable structural design.
Keywords:steel structure; space truss; mechanic performances of truss; joint analysis
作者簡介：張海東，碩士，教授級高級工程師，一級注冊結構工程師，Email:zhdong\|2008@163.com。
