| 低矮房屋屋面实测峰值风压分析 |
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| 引用本文： | 李秋胜,胡尚瑜,戴益民,李正农.低矮房屋屋面实测峰值风压分析[J].湖南大学学报(自然科学版),2010,37(6):11-16. |
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| 作者姓名： | 李秋胜 胡尚瑜 戴益民 李正农 |
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| 作者单位： | 1. 湖南大学,土木工程学院,湖南,长沙,410082;香港城市大学,建筑系,香港
2. 湖南大学,土木工程学院,湖南,长沙,410082 |
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| 基金项目： | 国家"985"工程资助项目，"十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 通过作者研制的一套可移动实验房及测试系统对近地登陆台风风速和房屋表面风压进行同步观测,研究登陆台风近地边界层风场和低矮房屋风效应.基于0801"浣熊"台风实测数据,分析了实验房屋面角部区域局部峰值负压分布特征和相关性,探讨了角部区域峰值压力时间和空间的平均拆减效应.结果发现,峰值负压系数大于现行规范规定值;并运用广义极值概率模型极值III型对角部测点峰值负压进行极值分析,角部测点峰值负压系数与其实测峰值负压相比要大26.4%.相对良态天气条件,在台风天气作用下低矮房屋屋面角部区域局部易形成较高吸力远大于现行规范推荐值.
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| 关 键 词： | 风压实测 低矮房屋 台风观测 峰值压力 极值分析 |
Analysis of the Field Measured Suction Peak Pressure Coefficients on the Flat Roof of a Low-rise Building |
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| LI Qiu-sheng,HU Shang-yu,DAI Yi-min and LI Zheng-nong.Analysis of the Field Measured Suction Peak Pressure Coefficients on the Flat Roof of a Low-rise Building[J].Journal of Hunan University(Naturnal Science),2010,37(6):11-16. |
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| Authors: | LI Qiu-sheng HU Shang-yu DAI Yi-min and LI Zheng-nong |
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| Institution: | LI Qiu-sheng1,2,HU Shang-yu1,DAI Yi-min1,LI Zheng-nong1(1.College of Civil Engineering,Hunan Univ,Changsha,Hunan 410082,China,2.Dept of Building and Construction,City Univ of Hongkong,Hongkong,China) |
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| Abstract: | A full-scale moveable instrumented low-rise building was constructed and implemented to measure the wind velocity and the associated building surface pressures during typhoon landfalls.The major objective of the field study was to further understand the typhoon-generated wind characteristics and the wind effects on the low-rise building under extreme wind conditions.Based on the pressure data measured on a roof corner of the experimented building during the 0801 typhoon Neoguri,it was shown that high local ... |
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| Keywords: | pressure measurement low-rise building typhoon observation peak pressure extreme value analysis |
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