| 模型表面粗糙度对冷却塔风荷载的影响 |
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| 引用本文： | 沈国辉,余关鹏,孙炳楠,楼文娟,李庆祥,杨仕超.模型表面粗糙度对冷却塔风荷载的影响[J].工程力学,2011(3):86-93. |
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| 作者姓名： | 沈国辉 余关鹏 孙炳楠 楼文娟 李庆祥 杨仕超 |
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| 作者单位： | 浙江大学土木工程学系;中国联合工程公司;广东省建筑科学研究院; |
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| 基金项目： | 国家自然科学基金项目(50608063); 浙江省土木工程灾变控制重点创新团队资助(2009R50050) |
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| 摘 要： | 采用两种粗糙条数量和五种粗糙条厚度分析模型表面粗糙度对冷却塔风荷载的影响,应用本征正交分解法(POD)进行风压点的加密和重构,分析不同粗糙度下冷却塔的风压分布和总体受力,并将试验结果与规范、以往的实测和风洞试验结果进行比较.研究发现:冷却塔模型的表面越光滑,喉部附近B层测点最人负风压的绝对值越大;当模型表面粗糙条数量增...
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| 关 键 词： | 冷却塔 风荷载 风洞试验 表面粗糙度 本征正交分解法 |
THE INFLUENCE OF MODAL SURFACE ROUGHNESS ON WIND LOADS OF COOLING TOWERS |
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| SHEN Guo-hui,YU Guan-peng,SUN Bing-nan,LOU Wen-juan,LI Qing-xiang,YANG Shi-chao.THE INFLUENCE OF MODAL SURFACE ROUGHNESS ON WIND LOADS OF COOLING TOWERS[J].Engineering Mechanics,2011(3):86-93. |
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| Authors: | SHEN Guo-hui YU Guan-peng SUN Bing-nan LOU Wen-juan LI Qing-xiang YANG Shi-chao |
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| Affiliation: | *SHEN Guo-hui1,YU Guan-peng2,SUN Bing-nan1,LOU Wen-juan1,LI Qing-xiang3,YANG Shi-chao3(1.Department of Civil Engineering,Zhejiang University,Hangzhou 310058,China,2.China United Engineering Corporation,Hangzhou 310022,3.Guangdong Provincial Academy of Building Research,Guangzhou 510500,China) |
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| Abstract: | Two types of roughness element numbers and five thicknesses of element heights were used to investigate the influence of modal surface roughness on wind loads of cooling towers.The technique of proper orthogonal decomposition method(POD) was employed to interpolate and reconstruct the wind pressures on the towers.The distribution of wind pressures and overall wind forces on the cooling tower were analyzed with respect to surface roughness.Then the experimental results were compared with the data of the Code... |
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| Keywords: | cooling tower wind load wind tunnel test surface roughness POD |
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