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魏鹏祥,邓挺. 典型低矮双坡房屋并列布置平均风压干扰效应的风洞试验研究[J]. 科学技术与工程, 2019, 19(31): 332-337.
魏鹏祥.Wind tunnel experiment of interference effect of wind pressure of typical low-rise gable-roofed building in side-by-side arrangement[J].Science Technology and Engineering,2019,19(31):332-337.
典型低矮双坡房屋并列布置平均风压干扰效应的风洞试验研究
Wind tunnel experiment of interference effect of wind pressure of typical low-rise gable-roofed building in side-by-side arrangement
投稿时间:2019-03-07  修订日期:2019-04-29
DOI:
中文关键词:  低矮建筑 风洞试验 并列干扰 平均风压
英文关键词:low rise buildings wind tunnel experiment side-by-side arrangement average wind pressure
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
     
作者单位
魏鹏祥 广州大学-淡江大学工程结构灾害与控制联合研究中心
邓挺 广州大学-淡江大学工程结构灾害与控制联合研究中心
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中文摘要:
      采用同步测压技术对华南沿海地区大量存在的低矮双坡房屋进行刚性模型风洞试验,考虑并列布置工况风荷载的干扰效应并用体形系数 来描述房屋表面在各个工况下的平均风压系数。结果显示:领近施扰建筑的屋面及纵墙的体形系数随干扰间距的变化明显,表现为随着间距的增大先增大后减小。在间距分别为0.5m和1m时取得最大值。而施扰建筑的有无以及干扰间距的变化对远离施扰建筑的屋面纵体以及迎背风山墙的体型系数基本无影响,其值在各个工况下基本保持稳定。
英文摘要:
      A rigid model wind tunnel experiment was carried out for a large number of low-rise gable-roofed buildings in south China coastal area by using synchronous pressure measurement technique.In order to consider the interference effect of wind load of low-rise gable-roofed building in side-by-side arrangement, the shape coefficient was employed to represent the mean wind pressure coefficient of the building surface under various operation conditions.The results show that the shape coefficient of the roof and longitudinal wall closing to disturbing building changed obviously with the disturbing spacing. With the increase of spacing, their shape coefficient first increases and then decreases and maximum values are obtained at spacing 0.5m and 1.0m, respectively. However, the existence of the disturbing building and the variation of the disturbing spacing have no influence on the shape coefficient of the roof, longitudinal wall keeping away from disturbing building and gable wall. Their value is basically stable under various working conditions.
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