- 摘 要
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（1 天津大學(xué)建筑設(shè)計研究院， 天津 300073； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072；3 天津市房屋建筑鋼結(jié)構(gòu)技術(shù)工程中心， 天津 300072）
［摘要］簡述了沁陽體育館工程的概況，結(jié)合主館平面投影為橢圓形的弧形屋面造型及下部主體結(jié)構(gòu)布置，通過三種結(jié)構(gòu)方案的分析對比，提出屋蓋采用橢圓拋物面弦支穹頂結(jié)構(gòu)，并闡述了弦支穹頂結(jié)構(gòu)的詳細(xì)布置。采用有限元分析軟件MIDAS/Gen800建立了主館屋蓋弦支穹頂結(jié)構(gòu)分析模型，在各種荷載工況及組合下對結(jié)構(gòu)進(jìn)行了分析計算，得到結(jié)構(gòu)的靜動力響應(yīng)。選取恒載+活載工況并考慮初始缺陷和幾何非線性對結(jié)構(gòu)進(jìn)行了全過程分析，得到了結(jié)構(gòu)穩(wěn)定性能。計算結(jié)果表明各個指標(biāo)均滿足規(guī)范要求。最后對關(guān)鍵支座和拉索節(jié)點構(gòu)造進(jìn)行了設(shè)計。
［關(guān)鍵詞］弦支穹頂； 體育館； 穩(wěn)定性能； 非線性； 節(jié)點構(gòu)造
中圖分類號：TU393.3,TU394 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)03-0077-06
Analysis and design of suspendome structure roof of Qinyang Gymnasium
Yan Xiangyu1,3, Yu Jinghai1,3, Ma Shufei2, Yu Yong1, He Caiyun1, Chen Zhihua2,3
(1 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China;2 School of Civil Engineering,
Abstract:The overview of Qinyang Gymnasium was briefly introduced. Considering the arc shaped roof with elliptic plane projection of main gymnasium and structural arrangement of lower main body, the elliptic parabolic suspendome structure for roof was put forward and adopted through analysis and comparison of three schemes, and the detailed layouts were discussed. By finite element analysis software MIDAS/Gen800, the analytical model of the suspendome structure 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 obtain the structure stability. The calculation results showed that each index can meet the requirements of specifications. Finally, the details of key bearings and cable joints were designed.
Keywords:suspendome; gymnasium; stability; nonlinearity; joint detail
*國家自然科學(xué)基金資助項目（51408414），教育部高等學(xué)校博士學(xué)科點專項科研基金（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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