深圳北站站臺雨棚新型弦支屋蓋張拉模擬及試驗研究*
孫璨1，傅學(xué)怡2，吳兵2，馮葉文2，孟美莉2，袁行飛3
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（1 東莞理工學(xué)院建筑工程系， 東莞 523808； 2 深圳大學(xué)建筑設(shè)計研究院， 深圳 518060；3 浙江大學(xué)空間結(jié)構(gòu)研究中心，杭州 310058）［摘要］針對深圳北站站臺雨棚屋蓋采用的由四邊形環(huán)索、豎向撐桿、斜桿及上部柱面網(wǎng)殼構(gòu)成的弦支結(jié)構(gòu)體系，結(jié)合其結(jié)構(gòu)形式及工作特性，提出了適于該結(jié)構(gòu)體系的基本張拉方法、模擬算法及施工方案，并通過縮尺模型試驗開展了3×3跨弦支單元體系的施工張拉模擬驗證，進而確定了該站臺雨棚屋蓋整體結(jié)構(gòu)施工張拉的控制原則和總體方案。全過程施工張拉模擬分析對比表明，提出的張拉方法、步驟及預(yù)應(yīng)力控制方案等能確保施工張拉全過程及張拉完成后該新型弦支結(jié)構(gòu)體系的強度、剛度及穩(wěn)定性始終符合設(shè)計要求，并保持安全穩(wěn)定。［關(guān)鍵詞］深圳北站; 雨棚; 四邊形環(huán)索; 施工張拉; 試驗中圖分類號：TU248.1，TU394 文獻標識碼：A 文章編號：1002-848X(2015)01-0053-05Pre-stressing simulation and experimental study of new type suspended roof in platform canopy of Shenzhen North Railway StationSun Can1, Fu Xueyi2, Wu Bing2, Feng Yewen2, Meng Meili2, Yuan Xingfei3（1 Department of Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; 2 The Institute of Architecture Design & Research, Shenzhen University, Shenzhen 518060, China; 3 Spatial Structure Research Center, Zhejiang University, Hangzhou 310058, China）Abstract: The platform canopy of Shenzhen North Railway Station adopts a new-type suspended structural system composed of quadrilateral hoop cable elements, vertical brace struts, inclined struts and top cylindrical lattice shell. Combined with the structure form and working characteristics, the basic pre-stressing method, simulation algorithm and construction scheme were proposed suitable for this structural system, and the construction pre-stressing simulation verification was carried out by scale model test of 3×3 span suspended element system. And then the control principle and general scheme of construction pre-stressing of the whole structure of platform canopy roof was confirmed. The comparison analyses of whole process simulation of construction pre-stressing indicate that the proposed method, step and pre-stressed control schemes can ensure the design requirements of strength, stiffness and stability of the new-type suspended structural system in whole construction pre-stressing process and completion.Keywords: Shenzhen North Railway Station; canopy; quadrilateral hoop cable; construction prestressing; experiment*國家自然科學(xué)基金項目（90715012，51308117）。通訊作者：傅學(xué)怡，研究員，Email:fu_xue_yi@aliyun.com。參考文獻［1］陳志華.弦支結(jié)構(gòu)體系研究進展［J］.建筑結(jié)構(gòu)，2011，41（12）：24-31.［2］郭佳民，袁行飛，董石麟，等.弦支穹頂施工張拉全過程分析［J］. 工程力學(xué)，2009，26（1）：198-203.KANG W J, CHEN Z, LAM H F. Analysis and design of the general and outmost-ring stiffened suspend-dome［J］. Engineering Structure, 2003, 25(2): 1685-1695.［4］KITIPORNCHAI, KANG W J, LAM H F, et al. Factors affecting the design and construction of lamella suspen-dome systems［J］. Journal of Construction Steel Research, 2005, 61(6): 26-30.［5］李志強，張志宏，袁行飛,等.濟南奧體中心弦支穹頂結(jié)構(gòu)施工張拉分析［J］. 空間結(jié)構(gòu)，2008，14（4）：14-20.［6］張國軍，葛家琪，秦杰,等. 2008奧運會羽毛球館弦支穹頂預(yù)應(yīng)力張拉模擬施工過程分析研究［J］.建筑結(jié)構(gòu)學(xué)報，2007，28（6）：31-38.［7］龐礴.弦支柱面網(wǎng)殼的理論分析與試驗研究［D］.杭州：浙江大學(xué)，2010.［8］浙江大學(xué)空間結(jié)構(gòu)研究中心.深圳北站站臺雨棚結(jié)構(gòu)縮尺模型試驗報告［R］. 2009.
