[1]朱乐东,周成,陈伟,等.坝陵河峡谷脉动风特性实测研究[J].山东建筑大学学报,2011,(01):27-34.
 ZHU Le-dong,ZHOU Cheng,CHEN Wei,et al.Analysis of turbulent wind characteristics at the Balinghe Valley[J].Journal of Shandong jianzhu university,2011,(01):27-34.
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坝陵河峡谷脉动风特性实测研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2011年01期
页码:
27-34
栏目:
研究论文
出版日期:
2011-02-15

文章信息/Info

Title:
Analysis of turbulent wind characteristics at the Balinghe Valley
作者:
朱乐东123 周成2 陈伟123 任鹏杰2 王继全2
1.同济大学 土木工程防灾国家重点实验室,上海 200092;2.同济大学 桥梁工程系,上海 200092;3.同济大学 桥梁结构抗风技术交通行业重点实验室,上海 200092
Author(s):
ZHU Le-dong123 ZHOU Cheng2 CHEN Wei123 et al.
1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092; 2. Department of Bridge Engineering, Tongji University, Shanghai 200092; 3. Key Laboratory of Wind Resistance Technology of Bridges of Transportation Industry, Tongji University, Shanghai 200092
关键词:
山区峡谷风特性紊流强度功率谱积分尺度现场实测
Keywords:
valley wind characteristics turbulence intensity power spectrum integral scale field measurement
分类号:
P425.2
文献标志码:
A
摘要:
利用现场实测方法对坝陵河大桥桥址区峡谷地貌的自然风紊流风特性进行研究,经过对实测数据的统计分析,得到峡谷处的阵风因子、紊流强度、紊流积分尺度以及紊流功率谱函数等强风特性。分析结果表明:峡谷地貌的自然紊流风的阵风因子、紊流强度都要高于平原地貌的值;顺风向、水平横风向和竖向脉动风速沿顺风向x轴的积分尺度的平[微软用户1]均值分别为158m、94m和42m;对于顺风向脉动风速谱,Simiu经验公式在低频区高于根据实测数据拟合的结果,而在高频区则要明显小于拟合结果;对于水平横风向脉动风速谱和竖向脉动风速谱,Simiu建议的经验公式以及Panofsk经验公式在整体上要小于拟合结果。
Abstract:
Long time observation is performed of natural wind at the Balinghe Valley. The turbulent characteristics, including gust factor, turbulence intensity, integral scale and wind spectrum, are summarized based on a large number of measured data. It is shown that the gust factor, turbulence intensity at the deep valley are higher than those at the plain; the average value of integral scales of turbulence components, including alongwind component, lateral component and upward component are 158m, 94m and 42m respectively. Compared with fitted results, alongwind component of Simiu spectra is larger in the low frequency region, and smaller in the high frequency region, while lateral component of Simiu spectra and upward component of Panofsk spectra are smaller on the whole.
更新日期/Last Update: 2011-05-24