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深圳機(jī)場T3航站樓風(fēng)壓特性研究

周晅毅1，顧 明1，臧健2，全 涌1，晏克勤1(1 同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室, 上海 200092; 2 深圳市機(jī)場(集團(tuán))有限公司, 深圳 518128)

［摘要］為了給結(jié)構(gòu)(含圍護(hù)結(jié)構(gòu))設(shè)計(jì)提供設(shè)計(jì)依據(jù)，介紹了超大跨度屋蓋結(jié)構(gòu)——深圳機(jī)場T3航站樓的模型風(fēng)洞試驗(yàn)和數(shù)值模擬的主要結(jié)果。給出了屋面在典型工況下的分塊體型系數(shù)(對(duì)應(yīng)法向風(fēng)壓)和切向風(fēng)荷載體型系數(shù)等值線，清楚地顯示了屋面的風(fēng)壓分布特征，結(jié)果表明切向風(fēng)荷載相對(duì)法向風(fēng)荷載較小。同時(shí)考慮到作用在圍護(hù)結(jié)構(gòu)上脈動(dòng)風(fēng)壓的相關(guān)性對(duì)極值風(fēng)壓的折減，分析了圍護(hù)結(jié)構(gòu)設(shè)計(jì)風(fēng)荷載的折減因子。

［關(guān)鍵詞］   風(fēng)洞試驗(yàn)；大跨度屋蓋；風(fēng)壓分布；數(shù)值模擬；折減因子

中圖分類號(hào)：TU312.1, TU391文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)01-0122-04

Research on wind pressure of Terminal 3 in Shenzhen International Airport

Zhou Xuanyi1, Gu Ming1, Zang Jian2, Quan Yong1, Yan Keqin1

(1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;

2 Shenzhen Airport Group Ltd., Shenzhen 518128, China)

Abstract:Testing conditions and main results of wind tunnel test and numerical simulation on Terminal 3 in Shenzhen International Airport were introduced. The block shape coefficients for wind forces acting normal to the building surface and the contours of shape coefficients for wind forces acting tangent to the building surface (friction forces) were given for the typical condition, which showed clearly the characteristics of the wind pressure distribution on the large-span roof surface. It is found that the wind forces acting tangent to the building surface are smaller than that of acting normal to the building surface. Meanwhile, considering the wind loading effects at different locations on the same cladding structure will offset each other, the reduction factors taking into the effects of relevant properties for individual measuring points were  analyzed.

Keywords:wind tunnel test; large-span roof; wind pressure distribution; numerical simulation; reduction factor

*科技部國家重點(diǎn)實(shí)驗(yàn)室基金（SLDRCE10-B-04），國家自然科學(xué)基金創(chuàng)新研究群體科學(xué)基金(50621062)。

作者簡介：周晅毅，博士，副研究員，Email:zhouxytj@#edu.cn。

參考文獻(xiàn)

［1］SIMIU E, SCANLAN R H. 風(fēng)工程導(dǎo)論——風(fēng)對(duì)結(jié)構(gòu)作用［M］. 劉尚培, 項(xiàng)海帆, 謝霽明，譯. 上海：同濟(jì)大學(xué)出版社, 1992.

［2］黃鵬, 全涌, 顧明. TJ-2風(fēng)洞大氣邊界層被動(dòng)模擬方法的研究［J］. 同濟(jì)大學(xué)學(xué)報(bào)：自然科學(xué)版, 1999, 27(2)：136-140.

［3］張相庭. 工程結(jié)構(gòu)風(fēng)荷載理論和抗風(fēng)計(jì)算手冊(cè)［M］. 上海：同濟(jì)大學(xué)出版社, 1990.

［4］GB50009—2001建筑結(jié)構(gòu)荷載規(guī)范［S］. 北京：中國建筑工業(yè)出版社, 2006.

［5］顧明, 黃鵬, 周晅毅. 北京首都機(jī)場3號(hào)航站樓風(fēng)荷載和響應(yīng)研究［J］. 土木工程學(xué)報(bào), 2005, 38(1)：40-44.

［6］周晅毅, 黃鵬, 顧明. 上海鐵路南站屋蓋表面風(fēng)壓特性試驗(yàn)研究［J］. 建筑結(jié)構(gòu), 2007, 37(2)：118-120.

［7］COOK N J. The designers guide to wind loading of building structures part 2: static structures［M］. Publications Sales Office Building Research Establishment, 1985.

［8］LAWSON T V. Wind effects on buildings, volume 1: design applications ［M］. London：Applied Science Publishers, 1980.

［9］HOHN D HOLMES. Wind loading of structures ［M］. London：Spon Press, 2001.