深圳大運(yùn)中心體育館風(fēng)洞試驗(yàn)結(jié)果分析與研究
趙雪崢,鄭阿妮,隋慶海
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(中國(guó)建筑東北設(shè)計(jì)研究院有限公司深圳分公司,深圳 518031)[摘要]深圳大運(yùn)中心體育館屋面為單層折面網(wǎng)格結(jié)構(gòu),平面呈圓形,但體型不規(guī)則,風(fēng)場(chǎng)特性較復(fù)雜,有必要進(jìn)行風(fēng)洞試驗(yàn)。通過對(duì)風(fēng)洞試驗(yàn)結(jié)果的分析研究,介紹了該大跨結(jié)構(gòu)的群體建筑相互干擾增大系數(shù)、屋面不同網(wǎng)格處的風(fēng)荷載體型系數(shù)和風(fēng)振系數(shù)的分析結(jié)果。結(jié)果表明,體型系數(shù)可利用規(guī)范給出的相似體型系數(shù)通過修正得到較理想的結(jié)果,為相似結(jié)構(gòu)在初步分析風(fēng)荷載作用時(shí)提供參考。[關(guān)鍵詞]風(fēng)洞試驗(yàn);相互干擾增大系數(shù);風(fēng)荷載;體型系數(shù)中圖分類號(hào):TU352.2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2011)04-0109-04Wind tunnel test on the steel roof structure of Shenzhen Dayun Center GymnasiumZhao Xuezheng, Zheng Ani, Sui Qinghai(China Northeast Architectural Design and Research Institute Shenzhen Branch, Shenzhen 518031, China)Abstract:The roof of Shenzhen Dayun Center Gymnasium is the single-layer space fold surface grid structure with the round plane. Wind tunnel test should be done because of the irregular shape and the complex of wind field characteristics. Based on the analysis of wind tunnel tests, the mutual interference enhancement coefficient of building complex of large span structure, the approximate value of shape coefficient and wind vibration coefficient were introduced. The analysis results show that shape coefficient can be given by similar shape coefficients in load code. Some useful reference was provided for the preliminary analysis of wind load on similar structures.Keywords:wind tunnel test; mutual interference enhancement coefficient; wind load; shape coefficient作者簡(jiǎn)介:趙雪崢,工程師,Email:ZXZHJ@126.com。參考文獻(xiàn)[1]GB50009—2001 建筑結(jié)構(gòu)荷載規(guī)范[S].北京:中國(guó)建筑工業(yè)出版社,2006.[2]克萊斯·迪爾比耶,斯文·奧勒·漢森. 結(jié)構(gòu)風(fēng)荷載作用[M]. 薛素鐸,李雄彥,譯. 北京:中國(guó)建筑工業(yè)出版社,2006.[3]裴永忠,石永久.大跨度機(jī)庫(kù)結(jié)構(gòu)風(fēng)荷載體型系數(shù)研究[J].建筑結(jié)構(gòu),2009,39(10):39-42.[4]深圳大運(yùn)中心體育館結(jié)構(gòu)風(fēng)振計(jì)算報(bào)告[R].廣州: 廣東省建筑科學(xué)研究院,2007.[5]張相庭. 工程抗風(fēng)設(shè)計(jì)計(jì)算手冊(cè)[M].北京:中國(guó)建筑工業(yè)出版社,1998.[6]深圳大運(yùn)中心體育館風(fēng)荷載標(biāo)準(zhǔn)值(不含風(fēng)振系數(shù))平面分布圖[R]. 廣州:廣東省建筑科學(xué)研究院,2007.
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