邻近高耸建筑对小区风环境的影响试验研究
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TU14;TU241.2

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国家自然科学基金(51808059);湖南省自然科学基金(2018JJ1027,2019JJ50688);长沙市杰出青年创新培育计划(kq195004)


Experimental study on urban wind environment influenced by adjacent high-rise building
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    摘要:

    风环境是评价人居生活质量好坏的重要指标,随着国民经济的快速发展,越来越多的高耸楼宇应运而生,这些楼宇会较大程度地改变已有小区的风环境,给小区居民正常生活带来困扰,而当前对该问题的针对性研究还十分匮乏。以长沙通用时代国际社区为研究背景,利用大尺度风洞(10 m×3 m×21 m)对新增高耸建筑后的小区风环境进行了全方位、多工况试验研究,并基于超越概率法对有无新增高耸建筑小区风环境舒适度与危险度进行定量评估。结果表明:城市小区平均风剖面与湍流度剖面指数值要远高于规范值,表明城市小区具有较大的地表粗糙度。新增高耸建筑会显著改变其邻近区域风环境,如高耸建筑对通用时代小区100、200、300 m范围内平均风速分别造成了25%、6%和2%的加速作用,在增加高耸建筑后小区风环境舒适度与危险度超越概率最大值分别增加了2倍和6倍。

    Abstract:

    Urban wind environment is an important index to evaluate the quality of human life. In recent years, with the rapid development of the economy, more and more new high-rise buildings have been built and greatly changed the existing residential wind environment. It leads a great trouble to the normal life of the residents in the community. However, the target researches focus on this problem are still very scarce. In this paper, the Tongyong Shidai community is chosen as the case study, and all-round and multi-condition experimental study on the residential wind environment influenced by high-rise building is analyzed by large scale wind tunnel (10 m×3 m×32 m). Meanwhile, exceeding probability method is used to quantitatively evaluate comfort degree and risk degree of the residential area with or without new high-rise buildings. The results show that the profile index values for average wind profiles and turbulence profiles are much higher than the values of standard, which indicates that urban area has greater surface roughness. The added high-rise buildings will significantly change the wind environment of the adjacent areas. When the high-rise building is added, the average wind speed in current community within 100, 200, 300 m is increased by 25%, 6% and 2%, respectively. The maximum value of the wind environment comfort and risk exceeding probability is increased by two times and six times, respectively.

    参考文献
    [1] PENWARDEN A D, WISE A F E. Wind environment around buildings [M]. HMSO, 1975.
    [2] BLOCKEN B, JANSSEN W D, VAN HOOFF T. CFD simulation for pedestrian wind comfort and wind safety in urban areas: General decision framework and case study for the Eindhoven University campus [J]. Environmental Modelling & Software, 2012, 30: 15-34.
    [3] 李朝, 肖仪清, 滕军, 等. 基于超越阈值概率的行人风环境数值评估[J]. 工程力学, 2012, 29(12): 15-21. LI C, XIAO Y Q, TENG J, et al. Numerical evaluation of pedestrian wind environment using threshold exceedance probability approach [J]. Engineering Mechanics, 2012, 29(12): 15-21.(in Chinese)
    [4] 高炜文, 傅继阳, 徐安, 等. 群体高层建筑风效应的数值模拟[J]. 广州大学学报(自然科学版), 2013, 12(6): 42-48. GAO W W, FU J Y, XU A, et al. Numerical simulation of wind effects on groups of high-rise buildings [J]. Journal of Guangzhou University (Natural Science Edition), 2013, 12(6): 42-48.(in Chinese)
    [5] 李峥嵘, 赵晋鹏, 赵群, 等. 不同风向作用下的建筑群风环境研究[J]. 暖通空调, 2018, 48(8): 81-85. LI Z R, ZHAO J P, ZHAO Q, et al. Wind environment around building complex under different wind directions[J]. Heating Ventilating & Air Conditioning, 2018, 48(8): 81-85. (in Chinese)
    [6] 关吉平, 陈伟, 朱乐东. 建筑群风环境干扰效应研究[J]. 结构工程师, 2010, 26(3): 82-88. GUAN J P, CHEN W, ZHU L D. Study of interference effects on wind environment around buildings [J]. Structural Engineers, 2010, 26(3): 82-88.(in Chinese)
    [7] RICCI A, BURLANDO M, FREDA A, et al. Wind tunnel measurements of the urban boundary layer development over a historical district in Italy [J]. Building and Environment, 2017, 111: 192-206.
    [8] 金海, 杨立国, 陈凯. 北京某商业中心行人风环境的风洞试验研究[J]. 北京大学学报(自然科学版), 2015, 51(4): 613-619. JIN H, YANG L G, CHEN K. Wind tunnel investigation on the pedestrian wind environment around high-rise buildings [J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2015, 51(4): 613-619.(in Chinese)
    [9] 王成刚, 罗峰, 王咏薇, 等. 高密度建筑群及超高建筑物对风环境影响的风洞试验[J]. 大气科学学报, 2016, 39(1): 133-139. WANG C G,LUO F,WANG Y W,et al. Experimental study of the impact of high-density building clusters and high-rise building on the wind environment [J]. Transactions of Atmospheric Sciences, 2016, 39(1): 133-139. (in Chinese)
    [10] 刘立创. 某居住区行人高度风环境的风洞试验研究[D]. 广州: 华南理工大学, 2014. LIU L C. Wind tunnel test research of a residential area of the pedestrian level wind environment [D] Guangzhou: South China University of Technology, 2014. (in Chinese)
    [11] DAVENPORT A G. An approach to human comfort criteria for environmental wind conditions [C]//Colloquium on Building Climatology, Stockholm, 1972.
    [12] 陈勇, 王旭, 楼文娟, 等. 超越概率阈值风环境评价标准分析[J]. 华中科技大学学报(自然科学版), 2011, 39(10): 103-107. CHEN Y, WANG X, LOU W J, et al. Analysis of criteria for wind-environment assessment using threshold of probability of exceedance [J]. Journal of Huazhong University of Science and Technology (Nature Science), 2011, 39(10): 103-107. (in Chinese)
    [13] 陈伏彬, 李秋胜, 吴立. 基于超越阈值概率的城市综合体行人高度风环境试验研究[J]. 工程力学, 2015, 32(10): 169-176. CHEN F B, LI Q S, WU L. Study on pedestrian level wind environment of HOPSCA using threshold of probability of exceedance [J]. Engineering Mechanics, 2015, 32(10): 169-176.(in Chinese)
    [14] BOTTEMA M. A method for optimisation of wind discomfort criteria [J]. Building and Environment, 2000, 35(1): 1-18.
    [15] BU Z, KATO S, ISHIDA Y, et al. New criteria for assessing local wind environment at pedestrian level based on exceedance probability analysis [J]. Building and Environment, 2009, 44(7): 1501-1508.
    [16] 全涌, 陈泂翔, 杨淳, 等. 大型中心城市平均风速剖面特性的风洞试验[J]. 同济大学学报(自然科学版), 2020, 48(2): 185-190. QUAN Y, CHEN J X, YANG C, et al. Wind tunnel experiments of the mean wind profile characteristics over a large central city[J]. Journal of Tongji University (Natural Science), 2020, 48(2): 185-190. (in Chinese)
    [17] 建筑工程风洞试验方法标准: JGJ/T 338—2014[S]. 北京: 中国建筑工业出版社, 2015. Standard for wind tunnel test of buildings and structures: JGJ/T 338-2014[S]. Beijing: China Architecture & Building Press, 2015. (in Chinese)
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沈炼,唐春朝,韩艳,汪阔,李春光,蔡春声.邻近高耸建筑对小区风环境的影响试验研究[J].土木与环境工程学报(中英文),2021,43(6):103-112. SHEN Lian, TANG Chunchao, HAN Yan, WANG Kuo, LI Chunguang, CAI Chunsheng. Experimental study on urban wind environment influenced by adjacent high-rise building[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2021,43(6):103-112.10.11835/j. issn.2096-6717.2020.127

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  • 收稿日期:2020-05-27
  • 在线发布日期: 2021-08-19
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