高层建筑室外风速简化计算方法研究

摘要

由于地表摩擦的结果,使接近地表的风速随着离地面高度的减小而降低,而大部分建筑物都在这个范围内.因此,室外风速对高层建筑热负荷的计算有重要意义.但是室外风速随高度变化呈对数曲线状,因此,不适合直接应用于高层建筑板壁传热量计算.通过根据不同层高进行分段直线拟合来代替曲线和计算出风速均值,从而达到简化的目的.%As the result of surface friction,the wind speed closing the surface with a height of the decrease from the ground and lower,and most buildings are in this area. Therefore the outdoor wind speed for calculating high-rise heat load is important. However, with height changes,the outdoor wind speed assume logarithm curve-shaped. Thus it's not suitable for directly calculating the number of the high-rise building's wall heat transfer. According to subsection beeline fitting with different floor height to replace curves and calculate the average wind speed, and achieve the purpose of simplification.