| Peer-Reviewed

Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement

Received: 29 December 2020     Published: 28 January 2021
Views:       Downloads:
Abstract

In recent years, the process of urbanization in my country has accelerated, the density of buildings in large cities has been increasing, and the height of buildings has also increased, resulting in an increasingly complex wind environment in the city center. An accurate and reasonable description of the characteristics of the wind field within the height of the atmospheric boundary layer in the city center is very important for determining the wind load of the high-rise building structure. This paper uses Windcube 100S Doppler laser wind measurement radar, taking Shanghai as an example, to carry out long-term actual measurement of good wind in the height range of 50m~1200m above Tongji University Wind Engineering Hall and obtain specific and detailed observation data. The time history of wind speed and direction in July and December 2019 is analyzed, and the average wind speed profile and average wind direction profile classified by incoming direction are studied, and the variation law of ground roughness index is obtained. The results show that there is no significant difference in the ground roughness index between different wind directions and seasons. The fitting values of ground roughness index in different directions for heights below 250m are greater than corresponding values for heights above 250m in the same direction, and are greater than the load specification values under class D landforms.

Published in Science Discovery (Volume 9, Issue 1)
DOI 10.11648/j.sd.20210901.12
Page(s) 7-12
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Field Measurement, Laser Radar, Long Period, Wind Speed Profile, Ground Roughness Index

References
[1] Durst C S. Wind speeds over short periods of time [J]. The Meteorological Magazine, 1960, 89(1956):181-186.
[2] 傅抱璞,于静明.南京164米铁塔观测风速廓线的研究[J].南京大学学报(自然科学版),1981(4):552-561。
[3] Cook N J. The Deaves and Harris. ABL model applied to heterogeneous terrain[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1997,66: 197-214.
[4] 王澈泉,李正农,胡佳星,张学文,周利芬,曹守坤.城市地貌高空台风特性及湍流积分尺度的研究[J].空气动力学学报,2017,35(06):801-806+822。
[5] 申建红.强风作用下高层建筑风场实测及模态参数识别研究[D].上海大学,2010。
[6] 何浩博.超高层建筑施工期的风场特性与风振响应特性实测研究[D].天津:天津大学,2016:50-63。
[7] 顾明,匡军,全涌,等.上海环球金融中心大楼顶部风速实测数据分析[J].振动与冲击, 2009,28(012):114-118。
[8] Li Q S, Fu J Y, Xiao Y Q, et al. Wind tunnel and full-scale study of wind effects on China's tallest building [J]. Engineering structures, 2006, 28(12):1745-1758.
[9] Rothermel J, Olivier L, Banta R, et al. Remote sensing of multi-level wind fields with highenergy airborne scanning coherent Doppler lidar. [J]. Optics Express, 1998, 2(2):40-50.
[10] 王乔乔,张秀芝.Windcube激光雷达与测风塔测风结果对比[J].气象科技.2013.01.004:1671-6345。
[11] 陈雯超,宋丽莉.不同天气条件下脉冲激光风廓线仪测风性能[J].应用气象学报,2017,28(3):1001-7313。
[12] Tamura Y, Suda K, Sasaki A, et al. Simultaneous measurements of wind speed profiles at two sites using Doppler sodars [J]. Journal of wind engineering and industrial aerodynamics, 2001, 89 (3): 325-335.
[13] NJ Cook. The Designer’s Guide to Wind Loading of Building Structures, [J]. Journal of Constructional Steel Research, 1985, 17 (3): 259-260.
[14] 中华人民共和国国家标准,建筑结构荷载规范[M], GB50009-2012,中华人民共和国住房和城乡建设部,中华人民共和国国家质量监督检验检疫总局,中国建筑工业出版社,2012:30-62。
[15] Flay R G J, Stevenson D C. Integral length scales in strong winds below 20 m[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1984, 28: 21-30.
Cite This Article
  • APA Style

    Li Yuandong, Quan Yong. (2021). Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement. Science Discovery, 9(1), 7-12. https://doi.org/10.11648/j.sd.20210901.12

    Copy | Download

    ACS Style

    Li Yuandong; Quan Yong. Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement. Sci. Discov. 2021, 9(1), 7-12. doi: 10.11648/j.sd.20210901.12

    Copy | Download

    AMA Style

    Li Yuandong, Quan Yong. Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement. Sci Discov. 2021;9(1):7-12. doi: 10.11648/j.sd.20210901.12

    Copy | Download

  • @article{10.11648/j.sd.20210901.12,
      author = {Li Yuandong and Quan Yong},
      title = {Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement},
      journal = {Science Discovery},
      volume = {9},
      number = {1},
      pages = {7-12},
      doi = {10.11648/j.sd.20210901.12},
      url = {https://doi.org/10.11648/j.sd.20210901.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210901.12},
      abstract = {In recent years, the process of urbanization in my country has accelerated, the density of buildings in large cities has been increasing, and the height of buildings has also increased, resulting in an increasingly complex wind environment in the city center. An accurate and reasonable description of the characteristics of the wind field within the height of the atmospheric boundary layer in the city center is very important for determining the wind load of the high-rise building structure. This paper uses Windcube 100S Doppler laser wind measurement radar, taking Shanghai as an example, to carry out long-term actual measurement of good wind in the height range of 50m~1200m above Tongji University Wind Engineering Hall and obtain specific and detailed observation data. The time history of wind speed and direction in July and December 2019 is analyzed, and the average wind speed profile and average wind direction profile classified by incoming direction are studied, and the variation law of ground roughness index is obtained. The results show that there is no significant difference in the ground roughness index between different wind directions and seasons. The fitting values of ground roughness index in different directions for heights below 250m are greater than corresponding values for heights above 250m in the same direction, and are greater than the load specification values under class D landforms.},
     year = {2021}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement
    AU  - Li Yuandong
    AU  - Quan Yong
    Y1  - 2021/01/28
    PY  - 2021
    N1  - https://doi.org/10.11648/j.sd.20210901.12
    DO  - 10.11648/j.sd.20210901.12
    T2  - Science Discovery
    JF  - Science Discovery
    JO  - Science Discovery
    SP  - 7
    EP  - 12
    PB  - Science Publishing Group
    SN  - 2331-0650
    UR  - https://doi.org/10.11648/j.sd.20210901.12
    AB  - In recent years, the process of urbanization in my country has accelerated, the density of buildings in large cities has been increasing, and the height of buildings has also increased, resulting in an increasingly complex wind environment in the city center. An accurate and reasonable description of the characteristics of the wind field within the height of the atmospheric boundary layer in the city center is very important for determining the wind load of the high-rise building structure. This paper uses Windcube 100S Doppler laser wind measurement radar, taking Shanghai as an example, to carry out long-term actual measurement of good wind in the height range of 50m~1200m above Tongji University Wind Engineering Hall and obtain specific and detailed observation data. The time history of wind speed and direction in July and December 2019 is analyzed, and the average wind speed profile and average wind direction profile classified by incoming direction are studied, and the variation law of ground roughness index is obtained. The results show that there is no significant difference in the ground roughness index between different wind directions and seasons. The fitting values of ground roughness index in different directions for heights below 250m are greater than corresponding values for heights above 250m in the same direction, and are greater than the load specification values under class D landforms.
    VL  - 9
    IS  - 1
    ER  - 

    Copy | Download

Author Information
  • State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China

  • State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China

  • Sections