泰達(dá)市民廣場多折面鋼結(jié)構(gòu)及拉桿桁架支承體系和膜結(jié)構(gòu)設(shè)計(jì)與研究
郭彥林1,蘭濤2,田廣宇1,劉濤1,田晉華3
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(1 清華大學(xué),北京 100084; 2 西安建筑科技大學(xué),西安 710055; 3 珠海紅海特種玻璃幕墻有限責(zé)任公司,珠海 519060)[摘要]天津泰達(dá)市民廣場多折面大斜坡由兩折面鋼結(jié)構(gòu)桁架與三折面拉桿桁架幕墻支承結(jié)構(gòu)及置于二者之上的六塊骨架式膜結(jié)構(gòu)組成。對兩折面鋼管桁架與三折面幕墻支承結(jié)構(gòu)體系的傳力路徑、受力特點(diǎn)進(jìn)行了分析和探討,并基于建筑美觀的要求,提出了大斜坡鋼結(jié)構(gòu)沿縱向設(shè)置伸縮縫釋放溫度應(yīng)力的鉸接-滑移節(jié)點(diǎn)及連接形式;應(yīng)用多鏈桿一體化計(jì)算模型研究了膜材與骨架支承體系之間的相互作用,并通過模態(tài)分析揭示了其剛度分布;分析了結(jié)構(gòu)設(shè)計(jì)中特殊節(jié)點(diǎn)的受力機(jī)理并提出了節(jié)點(diǎn)的設(shè)計(jì)及構(gòu)造方法。[關(guān)鍵詞]多折面大斜坡鋼結(jié)構(gòu);索桿桁架;溫度應(yīng)力;伸縮縫;骨架式膜結(jié)構(gòu);節(jié)點(diǎn)構(gòu)造Design and research of multi-slope steel structure, cable truss and membrane structures of Taida Civilian PlazaGuo Yanlin1, Lan Tao2, Tian Guangyu1, Liu Tao1, Tian Jinhua3(1 Tsinghua University, Beijing 100084,China; 2 Xi’an University of Architecture and Technology, Xi’an 710055,China; 3 Zhuhai Honghai Special Curtain Wall Co., Ltd., Zhuhai 519060,China)Abstract:The multi-slope steel stucture of Tianjin Taida Civilian Plaza is formed by a combination of the double-directional steel structure trusses, one directional cable trusses supporting the glass panels, and six framework membrane structures over the steel structure trusses. Structural design scheme and mechanical performance of the multi-slope steel structure, cable trusses, and framework membrane structures are analyzed extensively. The hinge-slip joints are developed in order to release the temperature stress of the slope steel structure trusses longitudinally, and only in this way, a good architecture appearance will be reached. In addition, the interaction between the membrane and framework is investigated by using multi-link model. The value of the stiffness of the framework membrane structure is indicated by mode analysis. The constructional details of special joints are put forward based on their mechanical performance.Keywords:multi-slope steel structure; cable truss; temperature stress; expansion joint; framework membrane structure; details作者簡介:郭彥林,博士,教授,博士生導(dǎo)師,Email:gyl@tsinghua.edu.cn。參考文獻(xiàn)[1]郭彥林,劉濤,田廣宇,等. 泰達(dá)市民文化廣場金字塔鋼結(jié)構(gòu)及幕墻支承體系性能研究與設(shè)計(jì)[J].建筑結(jié)構(gòu),2010,40(3).[2]郭彥林,劉濤,等. 天津泰達(dá)市民文化廣場玻璃幕墻及鋼結(jié)構(gòu)設(shè)計(jì)與研究[C]//鋼結(jié)構(gòu)協(xié)會學(xué)術(shù)年會論文集,2004.[3]天津泰達(dá)市民文化廣場關(guān)鍵結(jié)構(gòu)與施工技術(shù)[R].清華大學(xué)綜合技術(shù)研究報(bào)告,2009.[4]劉濤,郭彥林. 純玻璃結(jié)構(gòu)的承載力研究及設(shè)計(jì)方法[J].建筑結(jié)構(gòu), 2004(S1).[5]蘭濤,郭彥林,王昆. 多折面幕墻支承體系張拉方案研究[J]. 施工技術(shù), 2009, 38(7).[6]GB50017—2003鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范[S]. 北京:中國計(jì)劃出版社,2003.[7]JGJ102—2003玻璃幕墻工程技術(shù)規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2003.[8]郝敬剛. 膜、索與支撐結(jié)構(gòu)體系的全系統(tǒng)整體計(jì)算分析[D].北京:清華大學(xué),2003.[9]陳國棟,郭彥林,梁志,等. 廣州新白云國際機(jī)場航站樓結(jié)構(gòu)分析的關(guān)鍵問題[J].建筑結(jié)構(gòu)學(xué)報(bào),2002,23(5).
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