上海中心大廈懸掛式幕墻支撐結(jié)構(gòu)設(shè)計(jì)若干關(guān)鍵問題*
丁潔民，何志軍，李久鵬，胡殷
- 摘 要
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（同濟(jì)大學(xué)建筑設(shè)計(jì)研究院（集團(tuán)）有限公司, 上海 200092）［摘要］上海中心大廈外幕墻系統(tǒng)采用了分區(qū)懸掛在超高層建筑上的柔性懸掛式幕墻支撐體系，由于該體系幕墻遠(yuǎn)離主體結(jié)構(gòu)、分區(qū)懸掛重量大、懸掛高度高、豎向支承剛度柔等原因?qū)е缕浜奢d效應(yīng)、與主體結(jié)構(gòu)的相對變形及協(xié)同工作性能復(fù)雜，幕墻支撐系統(tǒng)的設(shè)計(jì)需能保證幕墻玻璃板塊及支撐結(jié)構(gòu)自身的安全，這給幕墻支撐結(jié)構(gòu)的分析設(shè)計(jì)提出了非常大的挑戰(zhàn)。針對幕墻支撐結(jié)構(gòu)分析設(shè)計(jì)中的幕墻支撐結(jié)構(gòu)抗扭轉(zhuǎn)設(shè)計(jì)、溫度敏感性分析、設(shè)備層變剛度調(diào)平、加強(qiáng)設(shè)計(jì)、底環(huán)梁豎向伸縮節(jié)點(diǎn)優(yōu)化、吊桿防松弛設(shè)計(jì)、徑向支撐豎向位移敏感性分析等若干關(guān)鍵問題進(jìn)行了系統(tǒng)的分析和研究。相關(guān)分析和設(shè)計(jì)方法可為類似工程提供有益的借鑒。［關(guān)鍵詞］上海中心大廈; 幕墻; 懸掛式幕墻; 支撐結(jié)構(gòu); 結(jié)構(gòu)分析設(shè)計(jì)中圖分類號：TU318，TU973 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2013)24-0006-06Several key issues of analysis and design of suspend curtain wall support structure of Shanghai TowerDing Jiemin, He Zhijun, Li Jiupeng, Hu Yin（Architectural Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China）Abstract: A flexible suspend curtain wall support structure (CWSS) was developed to suit exterior curtain wall system of Shanghai Tower. Its characteristics of away from main structure, heavy weight, high suspension height, weak support stiffness lead to complicated interaction with main structure and load effect. The design of CWSS should ensure safety of glass and CWSS, which is a very big challenge for the analysis and design of CWSS. Some key issues about design of CWSS such as anti-twist design of CWSS, temperature sensitivity analysis, adjustment stiffness & reinforcement of MEP floor, optimization of vertical expansion connection of bottom ring beam, anti-relaxation design of rods and vertical displacement sensitivity analysis of radial strut, were analyzed and researched. Analysis and design method used in this project could be useful reference for similar project.Keywords: Shanghai Tower; curtain wall; suspend curtain wall; support structure; structural analysis and design*上海市科技攻關(guān)計(jì)劃項(xiàng)目(09dz1207704）。作者簡介：丁潔民，教授，博士生導(dǎo)師，Email:Djm@tjadri.com。參考文獻(xiàn)［1］丁潔民，何志軍. 上海中心大廈柔性懸掛式幕墻支撐結(jié)構(gòu)分析與設(shè)計(jì)［J］. 建筑結(jié)構(gòu)， 2013，43(9): 5-9.［2］DING J M, LI J P, HE Z J, et al. Design of flexible hanging curtain wall support structure［C］// Proceedings of the CTBUH 9th World Congress. Shanghai, 2012.［3］丁潔民，何志軍，李久鵬. 上海中心大廈新型柔性懸掛式幕墻系統(tǒng)設(shè)計(jì) ［J］. 建筑結(jié)構(gòu)， 2013, 43 (24): 1-5.［4］何志軍，丁潔民，李久鵬. 上海中心大廈幕墻支撐結(jié)構(gòu)關(guān)鍵節(jié)點(diǎn)分析設(shè)計(jì)［J］. 建筑結(jié)構(gòu)， 2013，43(24): 12-17.
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