胡伟成, 杨庆山, 张建. 多国规范山地风速地形修正系数对比研究[J]. 工程力学, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897
引用本文: 胡伟成, 杨庆山, 张建. 多国规范山地风速地形修正系数对比研究[J]. 工程力学, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897
HU Wei-cheng, YANG Qing-shan, ZHANG Jian. COMPARATIVE STUDY ON WIND TOPOGRAPHIC FACTOR OF HILLY TERRAIN BY DIFFERENT CODES AND STANDARDS[J]. Engineering Mechanics, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897
Citation: HU Wei-cheng, YANG Qing-shan, ZHANG Jian. COMPARATIVE STUDY ON WIND TOPOGRAPHIC FACTOR OF HILLY TERRAIN BY DIFFERENT CODES AND STANDARDS[J]. Engineering Mechanics, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897

多国规范山地风速地形修正系数对比研究

COMPARATIVE STUDY ON WIND TOPOGRAPHIC FACTOR OF HILLY TERRAIN BY DIFFERENT CODES AND STANDARDS

  • 摘要: 在山区建筑物抗风设计中,必须考虑地形对风场的影响。对比分析了中国GB 5009-2012、日本AIJ-2004、美国ASCE/SEI 7-10、加拿大NBC-2005、国际ISO标准ISO 4354-2009(E)、澳大利亚/新西兰AS/NZS 1170.2-2011、欧洲BS EN 1991-1-4-2005、德国DIN 1055-4、英国BS 6399-2-1997等荷载规范中关于山地风速地形修正系数的有关规定。为便于比较,将地形修正系数计算公式统一形式。结合单体山峰风洞试验,探讨了不同坡度、不同维度山峰的迎风区、山顶和背风区的地形修正系数分布,对地形修正系数的规定提出建议。

     

    Abstract: Wind topographic effect should be considered for the wind-resistant design of buildings in hilly terrain. A detailed comparison on wind topographic factor of hilly terrain is made considering different Codes and standards, such as China (GB 50009-2012), Japan (AIJ-2004), America (ASCE/SEI 7-10), Canada (NBC-2005), ISO (ISO 4354-2009(E)), Australia/New Zealand (AS/NZS 1170.2-2011), Europe (BS EN 1991-1-4-2005), Britain (BS 6399-2-1997), etc. The expressions for calculating wind topographic factor are modified to a simplified unified form for the clarity of concepts. To investigate the distribution of the topographic factor along the hillside, wind tunnels test results of a single hill model with different slopes are introduced. Some suggestions for topographic factor are put forward.

     

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