中間設縫S形平面高層建筑的風荷載研究
任濤1, 沈國輝2, 李曉良1, 楊學林1
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任濤1, 沈國輝2, 李曉良1, 楊學林1（1 浙江省建筑設計研究院，杭州 310006; 2 浙江大學土木工程學系，杭州 310058）［摘要］采用風洞試驗方法獲得了呈平面S形布置的高層建筑的整體體型系數(shù)，探討由于伸縮縫的設置使得在設計中變成兩棟獨立建筑后，兩幢塔樓的整體體型系數(shù)，并分析了其分布規(guī)律，供設計參考。研究發(fā)現(xiàn)，整體體型系數(shù)沿高度遞減；S型高層建筑風荷載作用在短軸方向時，其整體體型系數(shù)較大,須引起設計的重視；考慮伸縮縫后，每個塔樓在兩棟塔樓鄰接面的風壓為0，即相當于只受三個面的風荷載。［關鍵詞］風洞試驗；體型系數(shù)；S形平面高層建筑；風壓合力中圖分類號：TU 312. 1文獻標識碼：B文章編號：1002-848X(2012)08-0062-03Research of wind loads on S-type high-rise building with temperature joint in the middle partRen Tao1, Shen Guohui2, Li Xiaoliang1, Yang Xuelin1(1 Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China; 2 Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China)Abstract: The total body shape coefficients of an S-type high-rise building are obtained using wind tunnel test. The setting of temperature joint in the middle part of the building results in two independent buildings. The total body type coefficients and distribution of body type coefficients of the two buildings are investigated, which could be a useful reference for the wind-resistant design of buildings with similar shape. Results from this study show that the total body type coefficients of the building decrease as the height on the building increase. The total body type coefficients on the short axis of the S-type high-rise building are significant, which should be paid much more attention in the design. When considering the effect of the temperature joint, the wind pressures on the neighboring face of the two independent buildings are zero, indicating that only three faces of the independent buildings are under wind action.Keywords: wind tunnel test; body shape coefficient; S-type high-rise building; resultant wind force作者簡介：任濤，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: icerent@163.com。參考文獻［1］李波, 楊慶山, 田玉基, 等. 錐形超高層建筑脈動風荷載特征［J］. 建筑結(jié)構(gòu)學報, 2010（10）:8-16.［2］沈國輝, 孫炳楠, 樓文娟, 等. 對稱雙塔樓建筑的風荷載分布特征［J］. 建筑結(jié)構(gòu)學報, 2003（1）:64-68.［3］邢宇帆, 倪振華, 謝壯寧. 高層建筑動態(tài)風干擾的瞬態(tài)風壓積分法研究［J］. 應用力學學報, 2006（1）:36-40.［4］AIJ Recommendations for loads on buildings［S］. Japan: Architectural Institute of Japan, 2004.［5］GB 50009—2001 建筑結(jié)構(gòu)荷載規(guī)范［S］. 2006年版.北京： 中國建筑工業(yè)出版社, 2006.［6］沈國輝, 孫炳楠, 樓文娟. 復雜體型高層建筑單體和雙塔時的風荷載［J］. 浙江大學學報：工學版, 2005（8）:1229-1233.［7］全涌, 嚴志威, 溫川陽, 等. 開洞矩形截面超高層建筑局部風壓風洞試驗研究［J］. 建筑結(jié)構(gòu), 2011，41（4）: 113-116.［8］金虎, 樓文娟, 沈國輝. X型超高層建筑的三維風荷載及風致響應［J］. 華中科技大學學報：自然科學版, 2008，36（6）:110-114.
