河北北方學(xué)院體育館屋蓋弦支穹頂結(jié)構(gòu)分析與設(shè)計(jì)*
閆翔宇1,2，于敬海1,2，于泳1，何彩云1，張波1
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（1 天津大學(xué)建筑設(shè)計(jì)研究院，天津 300073； 2 天津市房屋建筑鋼結(jié)構(gòu)技術(shù)工程中心，天津 300072）
［摘要］河北北方學(xué)院體育館平面投影為圓角矩形，屋面造型為弧形。通過方案的定性分析與對比，提出屋蓋采用一種適用于非圓形平面建筑屋蓋的球面弦支穹頂結(jié)構(gòu)專利技術(shù)，詳細(xì)闡述了該結(jié)構(gòu)體系的構(gòu)成思路與結(jié)構(gòu)布置。采用有限元軟件MIDAS/Gen 800，建立了屋蓋弦支穹頂結(jié)構(gòu)分析模型，并通過分析計(jì)算得到了各種荷載工況及組合下結(jié)構(gòu)的靜動力性能。為探索結(jié)構(gòu)穩(wěn)定性能，選取恒載+活載工況并考慮初始缺陷和幾何非線性進(jìn)行了全過程分析，得到了結(jié)構(gòu)荷載\|位移曲線。計(jì)算結(jié)果表明各項(xiàng)指標(biāo)均滿足規(guī)范要求。［關(guān)鍵詞］弦支穹頂; 體育館; 穩(wěn)定性能; 非線性; 非圓形平面建筑中圖分類號：TU393.3，TU318 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)16-0006-05
Analysis and design of suspendome structure roof of the gymnasium of Hebei North UniversityYan Xiangyu1,2, Yu Jinghai1,2, Yu Yong1, He Caiyun1, Zhang Bo1(1 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 2 Tianjin Steel Building Structure Engineering Center, Tianjin 300072, China)Abstract: Considering the curved roof with rounded rectangle plane projection and the arc-shaped roof of the gymnasium of Hebei North University, a patent named a spherical suspendome fitting non-circle plane building was put forward and adopted through conceptual analysis and comparison of different structural schemes. Then detailed composition and layout of this structure were discussed. By finite element analysis software MIDAS/Gen800, the analytical model of the suspendome structure roof was established. Under various load cases and combinations, analyses of the suspendome structure were carried out and the static and dynamic responses of the structure were obtained. Taking initial imperfection and geometric nonlinearity into account, the whole process analysis under the action of dead and live loads was done to explore the structure stability and load-displacement curve was obtained. The calculation results show that each index can meet the requirements of specifications.Keywords: suspendome; gymnasium; stability; nonlinear; non-circle plane building
*國家自然科學(xué)基金資助項(xiàng)目（51408414），教育部高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金（20130032120024）。作者簡介：閆翔宇，博士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: xy_yan2005@163.com。
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