典型超高层建筑风荷载的风洞试验研究
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摘要
通过测力风洞试验对典型超高层建筑风荷载的作用机理进行了系统的研究。评估了各风力脉动分量的相关特性,研究了结构顺风向、横风向和扭转基底谱的分布特征,分析了结构三维等效静力风荷载及顺风向风振系数,并与规范结果进行了对比研究。研究成果可为超高层建筑的抗风设计及相关研究提供有用的资料及依据。
The mechanics of wind load on a typical super-high rise building were evaluated by a wind tunnel test in boundary layers.The cross-correlations among various wind loading components were presented and discussed in detail.In addition,further studies were conducted to investigate the spectral characteristics of along-wind,across-wind and torsional components.The equivalent static wind loads and the wind-induced amplifier factors of the building were caculated based on the wind tunnel results and compared with those estimated from the building design codes of China.The outcomes of this study are expected to be valuable for the design of super tall buildings.
The mechanics of wind load on a typical super-high rise building were evaluated by a wind tunnel test in boundary layers.The cross-correlations among various wind loading components were presented and discussed in detail.In addition,further studies were conducted to investigate the spectral characteristics of along-wind,across-wind and torsional components.The equivalent static wind loads and the wind-induced amplifier factors of the building were caculated based on the wind tunnel results and compared with those estimated from the building design codes of China.The outcomes of this study are expected to be valuable for the design of super tall buildings.
引文
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[5]Xie Z N,Gu M.A Correlation-based Analysis on Wind-induced Interference Effects Between Two Tall Buildings[J].Wind andStructures,2005,8(3):163-178.
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[10]梁枢果,刘胜春,张亮亮,等.矩形高层建筑扭转动力风荷载解析模型[J].地震工程与工程振动,2003,23(3):74-80.
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[12]唐意,顾明,全涌.高层建筑的扭转风荷载功率谱密度[J].同济大学学报:自然科学版,2007,35(4):435-439.
[13]徐安,谢壮宁,葛建斌,等.CAARC高层建筑标准模型层风荷载谱数学模型研究[J].建筑结构学报,2004(4):118-123.
[14]全涌,顾明.超高层建筑横风向气动力谱[J].同济大学学报,2002,30(5):627-632.
[15]Davenport A G.Gust Loading Factors[J].Journal Structral Division,ASCE,1967,93(3):11-34.
[16]张相庭.结构风工程——理论.规范.实践[M].北京:中国建筑工程出版社,2006.
[17]Zhou Y,Kijewski T,Kareem A.Aerodynamic Loads on Tall Buildings:Interactive Database[J].Journal Structrual Engi-neering,ASCE,2003,129(3):394-404.
[18]顾明,周印,张锋,等.用高频动态天平方法研究金茂大厦的动力风荷载和风振响应[J].建筑结构学报,2000,21(4):55-61.
[19]石碧青,谢壮宁,倪振华.用高频底座力天平研究广州西塔的风效应[J].土木工程学报,2008,41(2):42-48.
[2]Bailey P A,Kwok K C S.Interference Excitation of Twin Tall Buildings[J].Journal of Wind Engineering and IndustrialAerodynamics,1985,21(3):323-338.
[3]Taniike Y,Inaoka H.Aeroelastic Behaviour of a Tall Building in Wakes[J].Journal of Wind Engineering and IndustrialAerodynamic,1988,28(123):317-327.
[4]Xie Z N,Gu M.Mean Interference Effects Among Tall Buildings[J].Engineering Structures,2004,26(9):1173-1183.
[5]Xie Z N,Gu M.A Correlation-based Analysis on Wind-induced Interference Effects Between Two Tall Buildings[J].Wind andStructures,2005,8(3):163-178.
[6]Liang Shuguo,Li Q S,Liu Shengchun,et al.Torsional Dynamic Wind Loads on Rectangular Tall Buildings[J].Engineer-ing Structures,2004,26:129-137.
[7]Thoroddsen S T,Peterka J A,Cermak J E.Correlation of the Components of Wind-loading on Tall Buildings[J].Journalof Wind Engineering and Industrial Aerodynamics,1988,28(123):351-360.
[8]Giovanni Solari.Mathematical Model to Predict 3-D Wind Loading on Buildings[J].Journal of Engineering Mechanics,1985,111(2):254-275.
[9]梁枢果,刘胜春,张亮亮,等.矩形高层建筑横风向动力风荷载解析模型[J].空气动力学学报,2002,20(1):32-39.
[10]梁枢果,刘胜春,张亮亮,等.矩形高层建筑扭转动力风荷载解析模型[J].地震工程与工程振动,2003,23(3):74-80.
[11]肖天盔,粱波,田村幸雄.高层建筑扭转风向动力风荷载数学模型[J].华中科技大学学报:城市科学版,2003,20(3):67-70.
[12]唐意,顾明,全涌.高层建筑的扭转风荷载功率谱密度[J].同济大学学报:自然科学版,2007,35(4):435-439.
[13]徐安,谢壮宁,葛建斌,等.CAARC高层建筑标准模型层风荷载谱数学模型研究[J].建筑结构学报,2004(4):118-123.
[14]全涌,顾明.超高层建筑横风向气动力谱[J].同济大学学报,2002,30(5):627-632.
[15]Davenport A G.Gust Loading Factors[J].Journal Structral Division,ASCE,1967,93(3):11-34.
[16]张相庭.结构风工程——理论.规范.实践[M].北京:中国建筑工程出版社,2006.
[17]Zhou Y,Kijewski T,Kareem A.Aerodynamic Loads on Tall Buildings:Interactive Database[J].Journal Structrual Engi-neering,ASCE,2003,129(3):394-404.
[18]顾明,周印,张锋,等.用高频动态天平方法研究金茂大厦的动力风荷载和风振响应[J].建筑结构学报,2000,21(4):55-61.
[19]石碧青,谢壮宁,倪振华.用高频底座力天平研究广州西塔的风效应[J].土木工程学报,2008,41(2):42-48.
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