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以海南石梅湾游艇会所为工程背景,进行了刚性模型同步测压风洞试验,研究了单体建筑与两栋建筑有相互干扰影响时的鱼形屋盖屋面平均与脉动风压系数、屋盖局部体型系数以及屋盖整体升力系数分布特性,并进行了详细的对比分析研究.研究结果表明:屋盖表面主要呈现负风压(风吸力),在迎风屋檐气流分离较大,风压变化明显,出现较大的负风压系数;当来流顺沿尾部贯通的连廊吹来时,增强的气流对屋盖下表面产生向下的吸力,且这股吸力要大于上表面向上的吸力,屋盖上下表面风压叠加后使该处屋面呈现一定的正风压;干扰建筑的存在对屋面全风向局部体型系数和屋盖整体升力系数有一定的遮挡效应.所得结论对复杂体型屋盖结构的抗风设计具有参考价值.
Taking the Shimei Bay Yacht Club in Hainan as the engineering background, a rigid-model synchronous pressure-measuring wind tunnel test was conducted and the average and fluctuating wind pressure coefficient of the roof of the fish-shaped roof when the single building and the two buildings had mutual interference were studied. The local body coefficient and the distribution coefficient of lift coefficient of the whole roof are analyzed and compared in detail.The results show that the surface of the roof mainly shows the negative wind pressure (wind suction force) Obviously, there is a larger negative pressure coefficient; when the flow along the tail through the corridor blowing, the enhanced airflow on the roof under the surface of the downward suction, and this suction is greater than the suction on the surface of the upward And the wind pressure on the upper and lower surfaces of the roof overlaps to make certain positive wind pressure on the roof of the roof.It is found that the interference with the building has a certain obstructing effect on the local body shape coefficient of the roof and the lift coefficient of the roof.Conclusions: Wind-resistant structure design has reference value.