天津商業(yè)大學(xué)新建體育館屋蓋環(huán)桁架拱支單層網(wǎng)殼結(jié)構(gòu)分析與設(shè)計(jì)*
尹越1,2,3，張文博1，閆翔宇3,4，于敬海3,4，李敬明4
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（1 天津大學(xué)建筑工程學(xué)院，天津 300072； 2 天津大學(xué)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 300072； 3 天津市房屋建筑鋼結(jié)構(gòu)技術(shù)工程中心，天津 300072； 4 天津大學(xué)建筑設(shè)計(jì)研究院，天津 300073)
［摘要］天津商業(yè)大學(xué)新建體育館屋蓋采用環(huán)桁架拱支單層網(wǎng)殼結(jié)構(gòu)體系。結(jié)合體育館屋蓋建筑造型，進(jìn)行了環(huán)桁架、拱桁架及單層網(wǎng)殼等的結(jié)構(gòu)布置；依據(jù)相關(guān)規(guī)范考慮各種荷載效應(yīng)及荷載組合，進(jìn)行了環(huán)桁架拱支單層網(wǎng)殼靜、動(dòng)力性能的分析和設(shè)計(jì)；對(duì)環(huán)桁架拱支單層網(wǎng)殼進(jìn)行了非線性穩(wěn)定性分析，通過跟蹤缺陷結(jié)構(gòu)非線性平衡路徑，確定了結(jié)構(gòu)的穩(wěn)定承載力；最后詳細(xì)分析了支座水平剛度對(duì)環(huán)桁架拱支單層網(wǎng)殼結(jié)構(gòu)性能的影響，并建立結(jié)構(gòu)整體模型，分析了下部結(jié)構(gòu)對(duì)屋蓋鋼結(jié)構(gòu)受力性能的影響。分析結(jié)果表明，環(huán)桁架拱支單層網(wǎng)殼具有很好的承載能力和變形性能，能安全、可靠地完成使用功能。［關(guān)鍵詞］體育館屋蓋結(jié)構(gòu); 拱支單層網(wǎng)殼; 非線性穩(wěn)定性; 支座約束剛度; 下部混凝土結(jié)構(gòu)中圖分類號(hào)：TU393.3，TU318.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)16-0011-06
Analysis and design of arch-supported single-layer lattice shell for the roof structure of the new gymnasium of Tianjin University of CommerceYin Yue1, 2, 3, Zhang Wenbo1, Yan Xiangyu3, 4, Yu Jinghai3, 4, Li Jingming4(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coastal Structures in Civil Engineering and Safety, Ministry of Education, Tianjin University, Tianjin 300072, China; 3 Tianjin Steel Building Structure Engineering Center, Tianjin 300072, China; 4 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China)Abstract: Arch-supported single-layer lattice shell was adopted as the roof structure of the new gymnasium of Tianjin University of Commerce. Loop trusses, arch trusses and single-layer lattice shell were set up in accordance with the architect design. Static analysis and dynamic analysis and design of the arch-supported single-layer lattice shell were conducted considering different loads and load combinations specified by related codes. Overall stability of the arch-supported single-layer lattice shell was studied by nonlinear finite element analysis. The stability of the structure was determined by tracking the nonlinear equilibrium path of the defect structure. The influence of the lateral stiffness of the bearing on the behaviour of the arch-supported single-layer lattice shell was also analyzed in detail. The influence of substructure on the mechanical properties of the roof structure was analyzed by the whole structure model. It is shown that the arch-supported single-layer lattice shell has excellent bearing capacity and deformation behaviour and is safe and reliable to be used.Keywords: roof structure of gymnasium; arch-supported single-layer lattice shell; nonlinear stability; restrain stiffness of support; reinforced concrete substructure
*國(guó)家自然科學(xué)基金資助項(xiàng)目（51408414），天津市建設(shè)系統(tǒng)科學(xué)技術(shù)發(fā)展計(jì)劃（2014-03）。通訊作者：閆翔宇，博士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:xy_yan2005@163.com。
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