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馮永偉¹，吳小平¹，楊學(xué)林¹，許衛(wèi)峰²，鄒良浩³

（1 浙江省建筑設(shè)計(jì)研究院，杭州 310006； 2 浙江恒興置業(yè)有限公司，杭州 310053；3 武漢大學(xué)土木建筑工程學(xué)院，武漢 430072）

 

［摘要］當(dāng)超高層建筑的高度和間距都比較接近的時(shí)候，相互的干擾效應(yīng)對結(jié)構(gòu)的表面風(fēng)荷載與結(jié)構(gòu)的風(fēng)致響應(yīng)都會(huì)產(chǎn)生較大影響?；趧傂阅Ｐ捅砻鏈y壓風(fēng)洞試驗(yàn)，得到了雙塔樓超高層建筑表面各測點(diǎn)的風(fēng)壓時(shí)程。在此基礎(chǔ)上，通過數(shù)據(jù)處理，得到結(jié)構(gòu)的三維動(dòng)力風(fēng)荷載模型，進(jìn)而分別采用頻域法進(jìn)行結(jié)構(gòu)動(dòng)力響應(yīng)分析。最后，通過分析結(jié)構(gòu)表面風(fēng)荷載與風(fēng)致響應(yīng)，研究了塔樓之間的干擾對結(jié)構(gòu)風(fēng)荷載的影響以及對結(jié)構(gòu)風(fēng)致響應(yīng)的影響，結(jié)果表明：當(dāng)雙塔連線與來流方向平行時(shí)，三維風(fēng)荷載和風(fēng)致響應(yīng)都會(huì)明顯增大，干擾效應(yīng)影響十分明顯。

［關(guān)鍵詞］風(fēng)洞試驗(yàn);干擾效應(yīng);雙塔樓結(jié)構(gòu);風(fēng)荷載

中圖分類號：TU 973-213文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2012)08-0065-04

 

Feng Yongwei¹, Wu Xiaoping¹, Yang Xuelin¹, Xu Weifeng², Zou Lianghao³

（1 Zhejiang Province Institute of Architecrural Design and Research, Hangzhou 310006, China; 2 Zhejiang Hengxing Trading Company Limited, Hangzhou 310053, China; 3 School of CML Engineering, Wuhan University, Wuhan 430072, China）

 

Abstract: The interference effects make a great influence on the wind pressure on the surface and the wind-induced responses of super-high buildings, when the distance between them is short and the heights of them are almost the same. Based on the wind tunnel test of rigid model, the time series of wind pressure on the test points on the surface of the-twin-tower super-high building were obtained, and then, the 3-D dynamic wind load model of the building was established by data process procedure. The wind-induced dynamic responses are evaluated based on frequency domain method. The interference effects on the wind loads and wind-induced responses are analyzed. The result shows that when twin-tower is parallel to the flow, wind loads and wind induced responses will increase, and the interference effects are very obvious.

Keywords: wind tunnel test; interference effects; twintower building; wind load

作者簡介：馮永偉，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: fyw315@yahoo.com.cn。

 

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［6］黃鵬，顧明. 高層建筑風(fēng)致動(dòng)力干擾效應(yīng)機(jī)理的試驗(yàn)研究［J］. 振動(dòng)工程學(xué)報(bào)，2003，16(1)：99-104.

［7］梁樞果，鄒良浩，郭必武.基于剛性模型測壓風(fēng)洞試驗(yàn)的武漢國際證券大廈三維風(fēng)致響應(yīng)分析［J］. 工程力學(xué), 2009, 26(3)：118-127.

［8］周向陽，梁樞果，郭必武,等.武漢國際證券大廈三維風(fēng)荷載的風(fēng)向效應(yīng)［J］. 華中科技大學(xué)學(xué)報(bào):城市科學(xué)版,2006, 23（1）：76-81.