月牙形屋面风荷载分布规律数值模拟研究  

RESEARCH ON THE WIND-LOAD SHAPE COEFFICIENT OF THE CRESCENT-SHAPED ROOF

作　　者：于敬海[1,2] 赵彧洋 蒋智宇 韩凤清 李路川[2] YU Jinghai;ZHAO Yuyang;JIANG Zhiyu;HAN Fengqing;LI Luchuan(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Architectural Design and Research Institute of Tianjin University,Tianjin 300073,China;Shandong Lixia Holding Group Limited,Jinan 250014,China)

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学建筑设计研究院,天津300073 [3]山东历下控股集团有限公司,济南250014

出　　处：《工业建筑》2020年第5期52-57,共6页Industrial Construction

基　　金：天津市科技支撑计划资助项目(13ZCZDSF014000)。

摘　　要：基于ANSYS Fluent软件平台采用SST k-ω湍流模型对月牙形悬挑屋面风荷载分布规律进行了数值模拟分析。为验证数值模拟的可靠性,将模拟结果与类似风洞试验结果进行对比分析,结果表明数值模拟可靠性较高。通过建立多个模型,研究通风率、屋面倾角、最大悬挑长度、风向角等因素对屋面体型系数的影响,得出月牙形悬挑屋面的风荷载分布规律。提出了月牙形屋面的风荷载体型系数的取值建议。Based on ANSYS Fluent software platform,the SST k-w turbulence model was used to calculate and analyze the wind-load shape coefficient of the crescent-shaped cantilevered roof.In order to verify the reliability of numerical simulation,the simulation results were compared with the results of similar wind tunnel tests.The results showed that the numerical simulation had high reliability.Many models were established to research the influences of the ventilation rate,the roof inclination,the maximum cantilever length and the wind angle on the wind-load shape coefficient of the roof.The regularities of wind load distribution on the crescent-shaped cantilevered roof were obtained.The wind load shape coefficient of the crescent-shaped cantilevered roof was proposed.

关 键 词：月牙形屋面 体型系数 风荷载分布 数值模拟 

分 类 号：TU312.1[建筑科学—结构工程]