六边形断面超高层建筑风荷载研究  

Wind load analytical model of super high-rise building with hexagonal section

作　　者：王磊[1,2] 尹伊 陈凯 唐意 郝玮 WANG Lei;YIN Yi;CHEN Kai;TANG Yi;HAO Wei(School of Civil Engineering,Henan Polytechnic University,454000 Jiaozuo,China;State Key Laboratory of Building Safety and Built Environment,100013 Beijing,China;National Engineering Research Center of Building Technology,100013 Beijing,China)

机构地区：[1]河南理工大学土木工程学院,焦作454000 [2]建筑安全与环境国家重点实验室,北京100013 [3]国家建筑工程技术研究中心,北京100013

出　　处：《应用力学学报》2025年第1期164-173,共10页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.51708186);河南省自然科学基金资助项目(No.232300420079);建筑安全与环境国家重点实验室开放课题基金资助项目(No.BSBE2020-5)。

摘　　要：为了研究六边形断面超高层建筑的静力和动力风荷载,开展了一系列刚性测压模型和多自由度气弹模型风洞试验,测量了刚性模型表面风压和气弹模型风致位移。对于静力风荷载,分析了体型系数和静风力系数的变化规律,建立了顺风向平均基底弯矩系数和平均阻力系数的经验公式。对于动力风荷载,分析了横风向荷载功率谱和均方根基底弯矩,建立了横风向广义风荷载功率谱和归一化均方根基底弯矩系数的经验公式。最后,基于多自由度气弹模型的风致振动试验结果,验证了经验公式的精确性。To study the static wind load and dynamic wind load of super tall buildings with hexagon section,wind tunnel tests of rigid pressure model and multi-degree-freedom aeroelastic model were carried out.The wind pressure of rigid model and the wind induced response of aeroelastic model were measured.For the along-wind load,the shape coefficient and the coefficient of static wind force are studied,and their analytical models are established.For the dynamic wind load,the power spectrum and the RMS base moment coefficient of the cross-wind load are analyzed,and the analytical models of power spectrum and the RMS base moment coefficient are established.Finally,based on the wind tunnel test results of the multi-degree-freedom aeroelastic model,the accuracy of the proposed analytical models are verified.

关 键 词：超高层建筑 六边形断面 风荷载 风洞试验 

分 类 号：TU973.2[建筑科学—结构工程] V211.7[航空宇航科学与技术—航空宇航推进理论与工程]