低矮建筑群风荷载作用下干扰效应的数值模拟

Numerical Simulation of Interference Effect of Wind Pressures on Low-rise Buildings

从建筑群风效应的角度出发,运用数值模拟方法,结合风洞模型试验对群体低层四坡屋面房屋周围的风场及表面风压进行了计算和分析,并与双坡屋面建筑群做比较,在单体数值模拟计算结果和风洞试验结果有较好吻合的前提下,获得了有相邻建筑干扰的情况下,低层四坡屋面房屋的表面风压的变化规律,为群体建筑的合理建筑形式及结构抗风设计提供理论依据。

Contrasted to wind tunnel test,wind-induced pressure on six low rise and hip roofed buildings was simulated and analyzed by using the numerical simulation technique.Good agreement was reached between the computed results and wind-tunnel test results of the single house,the variation trend of wind pressures on the surface of low-rise building under interference of the other house was discussed,which can be referenced for engineering design instantly.