台风“布拉万”远端风场阵风特性分析

王小松1 郭增伟1 袁航1 赵 林2

振动与冲击 ›› 2018, Vol. 37 ›› Issue (8) : 34-41.

PDF(3298 KB)
PDF(3298 KB)
振动与冲击 ›› 2018, Vol. 37 ›› Issue (8) : 34-41.
论文

台风“布拉万”远端风场阵风特性分析

  • 王小松1   郭增伟1   袁航1   赵  林2
作者信息 +

Gust characteristic analysis of wind field at the periphery of typhoon ‘Bolaven’

  • WANG Xiaosong1,GUO Zengwei1,YUAN Hang1,ZHAO Lin2
Author information +
文章历史 +

摘要

基于安装于西堠门大桥上的风速仪收集到的台风“布拉万”远端风场风速资料,分析了“布拉万”过境时桥址处平均风速、风向和紊流特性的变化,重点探讨了不同计算时距条件下阵风因子的分布概型及其均值、极值的变化规律,研究结果表明:台风“布拉万”远端风场紊流强度和阵风因子随平均风速的增大而减小,高风速下顺风向紊流强度为0.2360.18,大于桥梁抗风规范建议值,且横风向和竖向风速相对脉动强度均比桥梁抗风规范值小;台风“布拉万”远端风场顺风向、横风向和竖向的阵风因子均服从广义极值分布,随着计算时距的增大其分布概型逐渐由极值III型转变为极值II型,且95%保证率条件下顺风向阵风因子与建筑结构抗风规范取值一致;台风“布拉万”远端风场阵风因子随阵风计算时距的变换规律可以用对数高斯函数加以描述。
 

Abstract

Base on longtimemeasured data of typhoon ‘Bolaven’ recorded at the Xihoumen Bridge, wind characteristics, such as wind speed, wind direction, turbulence intensity, probability distribution and its extreme and average value of gust factor under different averaging time periods were investigated. It was shown that the turbulence intensity and gust factor of Balaven were decreasing with average wind speed in three directions, and that the mean statistical result of turbulence intensity related to longitudinal fluctuation components was 0.161 at high wind speed, which was higher than the recommended value. The gust factor analysis results show that the probability distribution of gust factor is converted from extreme value type III to type II with gust averaging time, and the statistical value of gust factor at 95% confidence level is identical to the recommended value in load code for the design of building structures. It is also discovered that Logarithmic Gauss distribution function can be used to describe the relationship between gust factor and its corresponding time interval.

关键词

台风
/ 实测 / 紊流 / 阵风因子 / 概率分布

Key words

  / typhoon, field measurements, turbulence, gust factor, probability distribution

引用本文

导出引用
王小松1 郭增伟1 袁航1 赵 林2. 台风“布拉万”远端风场阵风特性分析[J]. 振动与冲击, 2018, 37(8): 34-41
WANG Xiaosong1,GUO Zengwei1,YUAN Hang1,ZHAO Lin2. Gust characteristic analysis of wind field at the periphery of typhoon ‘Bolaven’[J]. Journal of Vibration and Shock, 2018, 37(8): 34-41

参考文献

[1] Durst C S. Wind Speeds over Short Periods of Time [J]. The Meteorological Magazine, 1960, 89(1056): 181-186
[2] Krayer W R, Marshall R D. Gust Factors Applied to Hurricane Winds [J]. Buletin of the Americal Meteorological Society, 1992, 73: 613-618
[3] Sharma R N, Richards P J. A Re-Examination of the Characteristics of Tropical Cyclone Winds [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1999, 83(1-4): 21-33
[4] Choi E C C, Hidayat F A. Gust Factors for Thunder Strom and Non-Thunder Strom Wind[J]. Journal of Wind Engieering and Industrial Aerodynamics, 2002(90): 1683-1696.
[5] Vickery P J, Skerlj P F. Hurricane Gust Factors Revisited [J]. Journal of Structural Engineering, 2005, 131(5): 825-832.
[6] Yu, B, Gan Chowdhury A. Gust Factors and Turbulence Intensities for the Tropical Environment [J]. Journal of Applied Meteorology and Climatology, 2009, 48(3): 534-552.
[7] Cao S Y, Tamura Yukio, Kikuchi Naoshi, Eat Al. Wind Characteristics of A Strong Typhoon [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2009(97): 11-212
[8] Holmes J D, Ginger J D. The Gust Wind Speed Duration in AS/NZS 1170.2 [J]. Australian Journal Of Structural Engineering, 2012, 13: 207-216
[9] 庞加斌, 林志兴, 葛耀君. 浦东地区近地强风风特性观测研究[J]. 流体力学试验与测量, 2002, 16(3): 32-39
Pang PANG Jia-bin B, Lin LIN Zhi-xing X, Ge GE Yao-jun J. Field measurements of strong wind characteristics near ground in Pudong district [J]. Experiments and Measurements in Fluid Mechanics, 2002, 16(3): 32-39
[10] Li Q S,Zhi L H ,Hu F. Field monitoring of boundary layer wind characteristics in urban area[J]. Wind and Structures.2009, 12: 553-574.2002, 16(3): 32-39
[11] 李秋胜, 戴益民, 李正农, 胡尚瑜. 强台风“黑格比”登陆过程中近地风场特性[J]. 建筑结构学报, 2010, 31(4): 54-61
LI Qiu-sheng S, DAI Yi-min M, LI Zheng-nong N, et al. Surface layer wind field characteristics during a severe typhoon ‘Hagupit’  land falling [J]. Journal of Building Structures, 2010, 31(4): 54-61
[12] 陈雯超, 宋丽莉, 植石群等. 不同下垫面的热带气旋强风阵风洗漱研究[J]. 中国科学: 科学技术, 2011, 41(11): 1449-1459
Chen CHEN Wen-chao C, Song SONG Li-li L, Zhi ZHI Shi-qun Q, et al. Analysis on gust factor of tropical cyclone strong wind over different underlying surfaces. Science China Tech Science, 2011, 41(11): 1449-14592576-2586
[13] Wang B, Hu F, Cheng X. Wind Gust and Turbulence Statistics of Typhoons in South China [J]. Acta Meteorological Sinica, 2011, 25: 113-127
[14] 史文海, 李正农, 张传雄. 温州地区不同时距下近地台风特性观测研究[J]. 空气动力学报, 2011, 29(2): 211-216
Shi SHI Wen-hang H, LI Zheng-nong,Li Z N, Zhang ZHANG Chuan-xiong X. Field measurements of typhoon characteristics near ground at different time intervals in Wenzhou district [J]. Acta Aerodynamica Sinica, 2011, 29(2): 211-216
[15] 王旭, 黄鹏, 顾明. 上海地区近地台风实测分析[J]. 振动与冲击, 2012, 31(20): 84-89
Wang WANG Xu, Huang HUANG Peng, Gu GU Ming. Field measurement of typhoon characteristics near ground in Shanghai district [J]. Journal of Vibration and Shock, 2012, 31(20): 84-89
[16] 潘晶晶, 赵林, 冀春晓等. 东南沿海登陆台风近地脉动特性分析[J]. 建筑结构学报, 2016, 37(1): 85-90
Pan PAN Jing-jing J, Zhao ZHAO Lin, Ji JI Chun-xiao X. Fluctuating wind characteristics near flat ground during typhoon landfall in southeast coastal areas of China [J]. Journal of Building Structures, 2016, 37(1): 85-90

PDF(3298 KB)

Accesses

Citation

Detail

段落导航
相关文章

/