【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μs来描述房屋表面各区域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. 5 m和1 m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墙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。更多还原

【Abstract】 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. 5 m and 1. 0 m,respectively. However,there is no influence on shape coefficient of gable wall,roof and longitudinal wall away from disturbing building. Their value is basically stable under various working conditions.更多还原