天津體育中心自行車(chē)館鋼屋蓋弦支穹頂結(jié)構(gòu)設(shè)計(jì)與分析*
王哲1，王小盾1，陳志華1,2,閆翔宇3，鄧雪3，陳文淵4
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(1 天津大學(xué)建筑工程學(xué)院，天津 300072；2 濱海土木工程結(jié)構(gòu)與安全教育部重點(diǎn)實(shí)驗(yàn)室(天津大學(xué))，天津 300072；3 天津大學(xué)建筑設(shè)計(jì)研究院，天津 300073；4 天津市建筑設(shè)計(jì)院，天津 300072）［摘要］天津體育中心自行車(chē)館鋼屋蓋采用弦支穹頂結(jié)構(gòu)體系，針對(duì)正交網(wǎng)格弦支穹頂結(jié)構(gòu)的特點(diǎn)，對(duì)上部結(jié)構(gòu)網(wǎng)格進(jìn)行優(yōu)化以方便索桿體系的設(shè)置。分析了作用于結(jié)構(gòu)的恒荷載、活荷載、風(fēng)荷載、溫度作用以及地震作用等，并對(duì)各種工況進(jìn)行組合，分析結(jié)構(gòu)靜力、動(dòng)力性能，確保結(jié)構(gòu)安全可靠。分析表明：局部肋環(huán)形網(wǎng)格劃分可以有效解決正交網(wǎng)格周邊索桿體系布置困難的問(wèn)題；向心關(guān)節(jié)軸承撐桿上節(jié)點(diǎn)可以簡(jiǎn)化鉸接節(jié)點(diǎn)構(gòu)造；地震參與工況對(duì)結(jié)構(gòu)內(nèi)力不起控制作用。［關(guān)鍵詞］弦支穹頂; 預(yù)應(yīng)力優(yōu)化; 靜力分析; 動(dòng)力分析; 向心關(guān)節(jié)軸承中圖分類(lèi)號(hào)：TU394 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)05-0006-04Suspend-dome structure design and analysis for steel roof of bicycle gymnasium in Tianjin Sports CenterWang Zhe1, Wang Xiaodun1, Chen Zhihua1,2, Yan Xiangyu3, Deng Xue3, Chen Wenyuan4（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coast Civil Structure and Safety, Ministry of Education（Tianjin University）, Tianjin 300072, China; 3 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 4 Tianjin Architecture Design Institute, Tianjin 300072, China)Abstract: The steel roof of bicycle gymnasium in Tianjin Sports Center adopts suspend-dome structural system. Based on the characteristics of the suspend-dome structure with orthogonal-grids, the grid optimization for the upper structure was carried out so as to arrange the cable-strut system. The dead load, live load, wind load, temperature effect and earthquake effect were combined to analyze the static force and dynamic performance of the structure to ensure the safety and reliability of the structure. The results show that local rib circular grid is effective to solve the problem in setting cable-strut system near orthogonal grids. The top node of radial spherical plain bearing can simplify the structural details of the hinged joint. The earthquake load case is not the controlling load case.Keywords: suspend-dome; pre-stress optimization; static analysis; dynamic analysis; radial spherical plain bearing*國(guó)家自然科學(xué)基金（51478310）。通訊作者：陳志華，博士，教授，Email: zhchen@tju.edu.cn。參考文獻(xiàn)［1］魏清橋.仿生學(xué)在空間結(jié)構(gòu)中的妙用［J］.建筑，2009(9)：34-35.［2］王哲,王小盾,陳志華,等.向心關(guān)節(jié)軸承撐桿上節(jié)點(diǎn)試驗(yàn)研究及有限元分析［J］.建筑結(jié)構(gòu)學(xué)報(bào),2013, 34(11):70-75.［3］王哲,王小盾,陳志華,等.向心關(guān)節(jié)索桿體系弦支穹頂張拉模擬分析［J］.建筑結(jié)構(gòu)學(xué)報(bào), 2014, 35(11),102-107.［4］陳志華.弦支穹頂結(jié)構(gòu)［M］.北京：科學(xué)技術(shù)出版，2010.［5］陳志華，肖驍，劉紅波. 太陽(yáng)輻射作用下鋼管溫度計(jì)算簡(jiǎn)化方法［J］．天津大學(xué)學(xué)報(bào)：自然科學(xué)與工程技術(shù)版，2014，47（增刊）：1-7.
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