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在模拟的大气边界层中,通过双塔结构刚性测压模型风洞试验,研究了两高耸建筑间的风荷载分布特征,通过分析结构的体型系数,研究了两建筑间的风荷载干扰效应。结果表明:该双塔结构风干扰效应主要表现为遮挡效应和狭管效应,由于位于上流的施扰建筑的影响,受扰建筑的负压绝对值明显减小;当施扰建筑平行与受扰建筑时,狭管效应导致位于两个建筑之间的负风压值大幅高,且随着建筑高度的增大,该狭管效应逐渐减弱。
In the simulation of the atmospheric boundary layer, the wind load distribution characteristics of two tall towers are studied by the wind tunnel test of double-tower rigid pressure-measuring model. The effect of wind load disturbance between the two buildings is studied by analyzing the size factor of the structure. The results show that the wind disturbance effect of the twin tower structure is mainly occluded effect and narrow-pipe effect. The absolute value of negative pressure of the disturbed building obviously decreases due to the influence of the disturbing building located in the upper stream. When the disturbing building is parallel and disturbed When building, the slender tube effect causes the value of the negative wind pressure between the two buildings to be significantly higher, and as the height of the building increases, the effect of the slender tube gradually diminishes.