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（浙江大學(xué)建筑工程學(xué)院， 杭州 310058）

［摘要］以實(shí)際工程為背景，提出了通過(guò)改變兩建筑物排布角度的方法，以探索較有利的風(fēng)荷載作用狀況。針對(duì)中心間距為90m、高度為280m的兩幢圓角方形高層建筑，設(shè)計(jì)了四種不同相對(duì)角度的排布方式，對(duì)這四種方式以及單體建筑分別進(jìn)行了風(fēng)洞模型試驗(yàn)和風(fēng)振響應(yīng)分析。結(jié)果表明，角對(duì)角排布和錯(cuò)位30°排布形式能夠降低建筑風(fēng)荷載局部體型系數(shù)和結(jié)構(gòu)所受的扭矩，而邊對(duì)邊排布能夠使得整體體型系數(shù)和基底合力達(dá)到最??；邊對(duì)邊排布條件下結(jié)構(gòu)頂層峰值位移和峰值加速度最小。

［關(guān)鍵詞］高層建筑； 雙塔建筑； 建筑布局； 風(fēng)荷載； 風(fēng)振響應(yīng)

中圖分類號(hào)：TU973-213文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)14-0126-05

Study on wind-load characteristics of twin-tower high-rise buildings in equal distance layout

Chen Qiang, Chen Shuifu, Shi Zhuoran

（College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China)

Abstract:Based on the actual project, the method of changing the layout angle of the two buildings was proposed to explore the favorable wind load condition. Four different relative angle arrangement methods were designed for two round square high-rise buildings with center spacing of 90m and height of 280m. Wind tunnel model test and wind vibration response analysis were carried out for these four methods and individual buildings respectively. The results show that the angular diagonal arrangement and the misaligned 30° arrangement can reduce the local body shape coefficient and the torque of the structure, while the edge-to-edge arrangement can minimize the overall body shape coefficient and the base force; top displacement and peak acceleration of the top layer of the structure are the smallest under the edge-to-edge arrangement condition.

Keywords:high-rise building; twin-tower building; building layout; wind load; wind dynamic response