[1]王浩,邹仲钦,陶天友,等.苏通大桥实测典型台风特性对比分析[J].东南大学学报(自然科学版),2018,48(2):342-349.[doi:10.3969/j.issn.1001-0505.2018.02.024]
　Wang Hao,Zou Zhongqin,Tao Tianyou,et al.Comparative analysis on measured wind characteristics of typical typhoons at Sutong bridge[J].Journal of Southeast University (Natural Science Edition),2018,48(2):342-349.[doi:10.3969/j.issn.1001-0505.2018.02.024]
点击复制

苏通大桥实测典型台风特性对比分析()
分享到：

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第2期
页码:
342-349
栏目:
交通运输工程
出版日期:
2018-03-20

文章信息/Info

Title:
Comparative analysis on measured wind characteristics of typical typhoons at Sutong bridge
作者:
王浩; 邹仲钦; 陶天友; 茅建校; 徐梓栋
东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Wang Hao;  Zou Zhongqin;  Tao Tianyou;  Mao Jianxiao;  Xu Zidong
Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
台风;  风特性;  风眼;  苏通大桥;  现场实测
Keywords:
typhoon;  wind characteristics;  typhoon eyes;  Sutong bridge;  field measurement
分类号:
U448.27;V321
DOI:
10.3969/j.issn.1001-0505.2018.02.024
摘要:
为研究台风不同区域风特性的特征及差异,基于苏通桥址区实测“海鸥”与“海葵”台风各72 h的风速样本,开展了风眼经过/未经过桥址区2类台风实测风特性的对比分析.首先,基于矢量分解法对2类台风的平均风速与平均风向进行了对比分析.然后,计算了2类台风的紊流强度、阵风因子和紊流积分尺度,并采用最小二乘法对阵风因子与紊流强度的非线性关系以及紊流积分尺度的概率密度进行了拟合.最后,计算了2类台风的紊流功率谱密度,并与规范推荐的风谱模型进行了对比.研究结果表明,与台风中心更接近的区域紊流强度与阵风因子值更大,紊流积分尺度值更小,且阵风因子与紊流强度之间存在较强的相关性.桥址区紊流功率谱密度不仅与风速大小相关,还与紊流强度大小有关.2类台风的实测风特性参数与规范建议值均存在一定偏差.
Abstract:
In order to investigate the features and differences of wind characteristics of typhoon in different regions, a comparative study on the wind characteristics of typhoon whether the typhoon eyes passing by the bridge site or not is carried out based on 72 h measured wind samples of Kalmaegi and Haikui at Sutong bridge. First, the mean wind speeds and the mean wind directions of these two kinds of typhoon are compared by the vector decomposition method. Then, the turbulence intensities, the gust factors and the turbulence integral scales of these two kinds of typhoon are calculated, and the nonlinear relationship between the gust factors and the turbulence intensities as well as the probability density of the turbulence integral scales are fitted by using the least square method. Finally, the turbulence power spectral densities of these two kinds of typhoon are calculated, and compared with the spectral model recommended by the specification. The analytical results indicate that when the measurement field is closer to the typhoon center, the turbulence intensity and the gust factor are larger while the turbulence integral scale is smaller. There is a strong correlation between the gust factor and the turbulence intensity. The power spectral density is related to the mean wind speed and the turbulence intensity. There is a certain deviation between the measured wind characteristics of these two kinds of typhoon and the recommended values by the specification.

参考文献/References:

[1] Simiu E, Scanlan R H. Wind effects on structures[M]. New York: John Wiley & Sons, 1996:59-64.
[2] 李爱群,王浩,谢以顺.基于SHMS的润扬悬索桥桥址区强风特性[J].东南大学学报(自然科学版),2007,37(3):508-511. DOI:10.3969/j.issn.1001-0505.2007.03.031.
Li Aiqun,Wang Hao, Xie Yishun. Experimental study on strong wind characteristics of Runyang suspension bridge based on SHMS[J]. Journal of Southeast University(Natural Science Edition), 2007, 37(3):508-511. DOI:10.3969/j.issn.1001-0505.2007.03.031. (in Chinese)
[3] Brownjohn J M W, Bocciolone M, Curami A, et al. Humber bridge full-scale measurement campaigns 1990—1991[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1994, 52: 185-218. DOI:10.1016/0167-6105(94)90047-7.
[4] Miyata T, Yamada H, Katsuchi H, et al. Full-scale measurement of Akashi-Kaikyo bridge during typhoon[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2002, 90(12): 1517-1527. DOI:10.1016/s0167-6105(02)00267-2.
[5] Xu Y L, Zhu L D, Wong K Y, et al. Field measurement results of Tsing Ma suspension bridge during typhoon Victor[J]. Structural Engineering and Mechanics, 2000, 10(6): 545-559. DOI:10.12989/sem.2000.10.6.545.
[6] 中华人民共和国交通运输部. JTG/T D60-01—2004,公路桥梁抗风设计规范[S].北京: 人民交通出版社,2004.
[7] Wang H, Tao T, Li A, et al. Structural health monitoring system for Sutong cable-stayed bridge[J]. Smart Structures and Systems, 2016, 18(2): 317-334. DOI:10.12989/sss.2016.18.2.317.
[8] 项海帆. 现代桥梁抗风理论与实践[M].北京: 人民交通出版社,2005: 22-26.
[9] Tao T, Wang H, Wu T. Comparative study of the wind characteristics of a strong wind event based on stationary and nonstationary models[J]. Journal of Structural Engineering, 2017, 143(5): 04016230. DOI:10.1061/(asce)st.1943-541x.0001725.
[10] von Kármán T. Progress in the statistical theory of turbulence[J]. Proc Natl Acad Sci USA,1948, 34(11): 530-539. DOI:10.1073/pnas.34.11.530.
[11] Ishizaki H. Wind profiles, turbulence intensities and gust factors for design in typhoon-prone regions[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1983, 13(1): 55-66. DOI:10.1016/0167-6105(83)90128-9.
[12] Choi E C C. Gradient height and velocity profile during typhoons[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1983,13(1): 31-41. DOI:10.1016/0167-6105(83)90126-5.
[13] Cao S, Tamura Y, Kikuchi N,et al. Wind characteristics of a strong typhoon[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2009, 97(1): 11-21. DOI:10.1016/j.jweia.2008.10.002.
[14] Cook B J. The designer’s guide to wind loading of building structures. Part Ⅰ: Background, damage survey, wind data, and structural classification[M]. Watford: Building Research Establishment, 1985: 81-82.

相似文献/References:

[1]茅建校,王浩,程怀宇,等.基于小波变换的台风激励下千米级斜拉桥模态参数识别[J].东南大学学报(自然科学版),2015,45(1):159.[doi:10.3969/j.issn.1001-0505.2015.01.028]
　Mao Jianxiao,Wang Hao,Cheng Huaiyu,et al.Modal parameter identification of kilometer cable-stayed bridge under typhoon excitation based on wavelet transform[J].Journal of Southeast University (Natural Science Edition),2015,45(2):159.[doi:10.3969/j.issn.1001-0505.2015.01.028]

备注/Memo

备注/Memo:
收稿日期: 2017-10-13.
作者简介: 王浩(1980—),男,博士,研究员,博士生导师,wanghao1980@seu.edu.cn.
基金项目: 国家自然科学基金优秀青年科学基金资助项目(51722804)、国家重点基础研究发展计划(973计划)青年科学家专题资助项目(2015CB060000).
引用本文: 王浩,邹仲钦,陶天友,等.苏通大桥实测典型台风特性对比分析[J].东南大学学报(自然科学版),2018,48(2):342-349. DOI:10.3969/j.issn.1001-0505.2018.02.024.
更新日期/Last Update: 2018-03-20