| 复杂体型大跨屋盖风荷载特性研究 |
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| 引用本文： | 赵若红,徐安,傅继阳,吴玖荣,张森文.复杂体型大跨屋盖风荷载特性研究[J].工业建筑,2008,38(10). |
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| 作者姓名： | 赵若红 徐安 傅继阳 吴玖荣 张森文 |
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| 作者单位： | 1. 温州大学,建工学院,温州,325000
2. 暨南大学,力学与土木工程系,广州,510632 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金，广东省科技厅科技计划 |
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| 摘 要： | 结合深圳市民中心风洞试验结果,分析了复杂体型大跨屋盖的平均风压及均方根风压分布特性,结果表明:风吹经屋盖上翘角部时由于流线分离所产生的漩涡,导致屋盖角部的平均风压和极值风压都远大于屋盖中部。同时还给出屋盖表面典型测点的三维功率谱,结果表明:屋盖测点风压的能量基本集中在迎风状态的低频部分,尾流和高频部分的风压能量较小。
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| 关 键 词： | 复杂体型大跨屋盖 平均风压 均方根风压 三维功率谱 |
CHARACTERS OF WIND LOADS ACTING ON LONG-SPAN ROOF OF IRREGULAR SHAPE |
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| Zhao Ruohong,Xu An,Fu Jiang,Wu Jiurong,Zhang Senwen.CHARACTERS OF WIND LOADS ACTING ON LONG-SPAN ROOF OF IRREGULAR SHAPE[J].Industrial Construction,2008,38(10). |
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| Authors: | Zhao Ruohong Xu An Fu Jiang Wu Jiurong Zhang Senwen |
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| Affiliation: | Zhao Ruohong(Civil Engineering Dept.Wenzhou University Wenzhou 325000)Xu An Fu Jiyang Wu Jiurong Zhang Senwen(Mechanics and Civil Engineering Dept.of Jinan University Guangzhou 510632) |
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| Abstract: | This paper presents results from a wind tunnel study of wind pressures on an extra-long-span roof structure.In this study,mean,root-mean-square and peak wind pressure coefficient distributions on the roof are presented and discussed.The result presents maximum mean and peak pressure coefficient at corner of the roof.Major intermittent wind energy distribution is presented when the 3-D power spectrum density(PSD) of some typical measuring points on the roof is discussed. |
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| Keywords: | long-span roof of irregular shape mean wind pressure root-mean-square wind pressure 3-D power spectrum density(PSD) |
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