| 体育馆屋盖的风洞试验研究和数值计算 |
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| 引用本文： | 杨有根,刘光栋.体育馆屋盖的风洞试验研究和数值计算[J].湖南大学学报(自然科学版),2007,34(1):9-13. |
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| 作者姓名： | 杨有根 刘光栋 |
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| 作者单位： | 湖南大学,土木工程学院,湖南,长沙,410082 |
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| 基金项目： | 国家“985”工程项目基金 |
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| 摘 要： | 对一系列不同倾角的体育馆悬挑屋盖进行了风洞试验;模型比例为1:50,在屋盖上下表面安装128对测压管,在同步测压的基础上,我们获得每个测点的风压时程,通过对试验数据的处理,分析平均风压和脉动风压的产生机理.试验表面明,风压分布是受屋盖表面的气流流动分离所影响的.同时,对这种形式屋盖进行计算分析.
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| 关 键 词： | 体育馆屋盖 风洞试验 风压 流动分离 |
| 文章编号： | 1000-2472（2007）01-0009-05 |
| 修稿时间： | 2006-07-10 |
Wind Tunnel Tests of the Stadium Cantilevered Roofs and Mathematical Calculation |
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| YANG You-gen,LIU Guang-dong.Wind Tunnel Tests of the Stadium Cantilevered Roofs and Mathematical Calculation[J].Journal of Hunan University(Naturnal Science),2007,34(1):9-13. |
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| Authors: | YANG You-gen LIU Guang-dong |
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| Institution: | College of Civil Engineering, Hunan Univ, Changsha, Hunan 410082, China |
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| Abstract: | Wind tunnel tests were performed on a rigid model of a cantilevered roof with different angles.With an aspect ratio of 1:50,the model was equipped with 128 pairs of pressure taps covering both roof surfaces.With an electronic pressure scanning system,wind pressures were measured in a near simultaneous manner.Time histories of the wind pressure were obtained from the simultaneous pressure signals.The objective was to investigate the generation mechanism of wind pressure and standard deviation of wind pressure.The results suggested that the distribution of roof pressures was largely governed by the flow separation patterns on the roof surfaces.Besides,the system of the beams supporting the roofs was calculated. |
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| Keywords: | long span cantilevered roofs wind tunnel tests wind pressure flow separation |
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