數(shù)值風(fēng)洞在蘇州中心“未來之翼”屋面設(shè)計(jì)中的應(yīng)用
楊律磊，龔敏鋒，路江龍，張謹(jǐn)
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（蘇州工業(yè)園區(qū)設(shè)計(jì)研究院股份有限公司， 蘇州 215021）
［摘要］以蘇州中心展開長度近630m的異形曲面鋼屋面為背景，對數(shù)值風(fēng)洞在結(jié)構(gòu)風(fēng)荷載設(shè)計(jì)和風(fēng)環(huán)境分析中的運(yùn)用進(jìn)行了探討。采用數(shù)值風(fēng)洞對屋面結(jié)構(gòu)在不同風(fēng)向角下的風(fēng)荷載特性進(jìn)行了數(shù)值模擬分析，計(jì)算得到上部結(jié)構(gòu)表面的風(fēng)壓系數(shù)與物理風(fēng)洞試驗(yàn)結(jié)果吻合較好；基于分析結(jié)果采用時(shí)域法對屋面進(jìn)行了風(fēng)致振動(dòng)響應(yīng)分析，并對屋面結(jié)構(gòu)周圍行人高度處風(fēng)環(huán)境進(jìn)行了模擬評估。最后，分析了數(shù)值風(fēng)洞和物理風(fēng)洞兩者之間的差異，提出了數(shù)值風(fēng)洞模擬的改進(jìn)方法和思路。［關(guān)鍵詞］蘇州中心; 大跨屋面; 計(jì)算流體動(dòng)力學(xué); 風(fēng)振響應(yīng); 風(fēng)環(huán)境中圖分類號：TU312+.1，TU318.2 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)14-0065-07
Application of numerical wind tunnel in design of Wing of Future roof of Suzhou CenterYang Lülei, Gong Minfeng, Lu Jianglong，Zhang Jin(Suzhou Industrial Park Design & Research Institute Co., Ltd., Suzhou 215021, China)Abstract: The applications of the numerical wind tunnel in the structural wind load design and wind environment analysis were discussed based on the background of the 630m long special-shaped curved surface steel roof of Suzhou Center. The numerical wind tunnel was used to carry out the numerical simulation analysis on wind load characteristics for the roof structure under different wind angles. The calculated wind pressure coefficient of the surface of the upper part structure and physical wind tunnel test result are in good agreement. Based on the analysis results, time domain method was used to carry out the wind-induced vibration response analysis on the roof structure, and the wind environment at the height of pedestrians around the roof structure was simulated and evaluated. At last, the differences between the numerical wind tunnel and the physical wind tunnel were analyzed, and the improving methods and ideas of the numerical wind tunnel simulation were presented.Keywords: Suzhou Center; large-span roof; computational fluid dynamics; wind vibration; wind environment
作者簡介：楊律磊，工程師，Email: yanglvlei@sipdri.com。
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