某典型高层建筑表面风压分布特性及干扰效应试验研究

Experimental investigation of wind pressure distributions and wind interference effects on a typical tall building

结合某典型高层建筑刚体模型测压试验,详细分析了有、无周边建筑物干扰两种情况下其表面风压的分布特性,并绘制了建筑表面的平均风压系数、脉动风压系数等值线分布图。试验研究表明:群体高层建筑间的风干扰问题主要表现为遮挡效应和峡管效应;当上游建筑的尾流边界受到干扰时,上游建筑的侧风面和背风面的风压系数会发生显著改变。

Based on the wind tunnel tests of rigid model of a typical tall building, the wind pressure distributions on the isolated building and the building with surrounding buildings around were presented and discussed respectively. The contours of the mean and fluctuate wind pressure coefficients were also presented. The test results show that shielding effect and channeling effect are significant on the building due to the surrounding buildings. Wind pressure coefficients on side wall and leeward wall due to the interference effect from a upstream building may be dramatically changed.