大跨弦支穹顶复杂体型屋面风压分布规律  

Distribution of Wind Pressure on the Complex Roof of the Long-Span Suspend Dome

作　　者：于敬海[1,2] 蒋智宇 韩凤清 李路川[1] 闫翔宇[1,2] Yu Jinghai;Jiang Zhiyu;Han Fengqing;Li Luchuan;Yan Xiangyu(Architectural Design and Research Institute,Tianjin University,Tianjin 300073,China;School of Civil Engineering,Tianjin University,Tianjin 300072,China;Jinan Lixia Holding Group Limited,Jinan 250014,China)

机构地区：[1]天津大学建筑设计规划研究总院,天津300073 [2]天津大学建筑工程学院,天津300072 [3]济南历下控股集团有限公司,济南250014

出　　处：《天津大学学报（自然科学与工程技术版）》2017年第B07期155-161,共7页Journal of Tianjin University：Science and Technology

基　　金：天津市科技支撑计划资助项目(13ZCZDSF01400)

摘　　要：对烟台福莱山"海之泉"项目表面风压进行数值模拟,并将模拟结果与风洞试验结果进行对比,验证了SST k-ω湍流模型的可靠性.进而利用CFD数值模拟技术对天津中医药大学新建体育馆屋面风压分布规律进行模拟分析,研究了不同风向角对体育馆屋面风荷载体型系数的影响,并利用流场速度矢量图分析了结果的合理性.结果表明:在各个风向角下,屋面迎风前缘体型系数都较大,最大值可达-1.6,超过了规范取值,进而给出了屋面风荷载体型系数取值建议.The reliability of the SST k-ωturbulence model was verified by the numerical simulation of the surface wind pressure on the Haizhiquan in Yantai and the results were compared with the wind tunnel test data.The CFD numerical simulation method was used to study the distribution law of roof wind pressure of the new gymnasium in Tianjin University of Traditional Chinese Medicine.The wind load coefficients of roof were obtained under different wind direction angles.The rationality of the results was analyzed by using velocity vector.It is found that the shape coefficients of windward leading edge of the roof are generally large with the maximum value of-1.6,which is higher than the standard value.The value of the roof wind load shape coefficient was suggested.

关 键 词：大跨空间结构 数值模拟 风压系数 

分 类 号：TU393.3[建筑科学—结构工程]