義馬體育館雙向斜交管桁架結(jié)構(gòu)分析
田立強，王昌興，徐 珂
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（北京清城華筑建筑設(shè)計研究院， 北京 100083）[摘要] 義馬體育館罩棚設(shè)計平面近似為相互咬合的兩個平行四邊形。為滿足建筑外觀及室內(nèi)感官的要求，屋面罩棚結(jié)構(gòu)形式采用支撐于三角形格構(gòu)柱上雙向斜交管桁架結(jié)構(gòu)。結(jié)構(gòu)形式新穎美觀，通過分析結(jié)構(gòu)強度及剛度可以滿足規(guī)范的要求，結(jié)構(gòu)穩(wěn)定性較好。本文介紹該結(jié)構(gòu)體系設(shè)計的難點及解決方案，通過兩種有限元軟件進行分析對比，其計算結(jié)構(gòu)基本一致，主要參數(shù)的差值均小于5%。[關(guān)鍵詞] 雙向斜交管桁架; 鋼管混凝土柱; 特征值屈曲分析; 非線性屈曲分析中圖分類號：TU391 文獻標(biāo)識碼：A 文章編號：1002-848X（2013）S2-0457-05作者簡介：田立強，本科，結(jié)構(gòu)工程師，Email：tianliqiang80@126.com。Structure analysis of bidirectional bias pipe truss of YiMa stadiumTian Liqiang，Wang Changxing，Xu Ke（Beijing THCA Architectural Design & Consulting Institute, Beijing 100083, China）Abstract：The construction plane of Yima stadium canopy is similar with two occlusal parallelograms. To meet the construction requirements of exterior and interior senses, the bidirectional bias pipe truss supported on the triangular lattice column is applied into the roof design. The structural form is fashionable and attractive. By analyzing, the structural strength and stiffness could meet the specification requirements, and the construction has good structural stability. This article describes the difficulties in the design of structural systems and solutions, the analysis and comparison is completed with two type finite element software, the results are consistent, and the main parameters were less than 5% difference.Keywords: bidirectional bias pipe truss; concrete-filled steel tubular column; buckling analysis; nonlinear bucking analysis
