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为研究底层架空建筑住区风环境,通过大气边界层风洞试验的方法,以广州地区某建筑底部架空住区为对象,研究了底部架空对于住区人行高度风环境以及建筑表面风压的影响。研究结果表明:对于各组团建筑周边开敞区域的风速测点位置,大部分风向下无架空情况的阵风等效风速比稍大于有架空情况;无架空情况下二层高度平均风压系数略高于有架空情况,而对于整体风压有无架空影响不大;在夏季主导风向下,无架空情况各组团建筑表面平均风压差均略高于有架空情况。
In order to study the wind environment of the residential buildings in the overhead area, the influence of the bottom overhead on the height wind environment and the building surface wind pressure of the pedestrian in the residential area was studied by means of the atmospheric boundary layer wind tunnel test and the overhead residential area at the bottom of a building in Guangzhou. . The results show that for most wind direction measuring points in the open area surrounding each group of buildings, the wind gust equivalent wind speed ratio is slightly greater than that of the overhead wind without overhead conditions; and the wind pressure coefficient of the second floor height is slightly higher However, there is not much effect on the overall air pressure with or without overhead. In the summer-oriented wind direction, the average wind pressure difference on the surface of buildings without any overhead situation is slightly higher than that of the overhead air.