中文摘要：

以某热电厂四心圆煤棚工程项目为背景,根据工程设计与试验研究的需要,对这种大跨煤棚模型进行了风洞试验研究。研究了风向角对风荷载体型系数的影响,经过对不同工况下各测点的体型系数分析,得到不同工况下结构表面的体型系数。研究结果表明：测点与来流风呈30°-40°夹角时,测点的体型系数最大;在风向角变化的情况下,模型的顶部和边缘地区体型系数相对较大,在建设煤棚时应对其加固。

英文摘要：

According to the requirements of engineering design and experimental research, the wind tunnel tests on a large-span coal shed structure for a thermal power plant were carried out. The influence of wind direction angle on wind-load-shape coefficient was studied. After analyzing the shape coefficient of each measuring point under different working conditions, the wind-load-shape coefficients on the structure surface were obtained. The results showed that： the measuring point had the largest volume coefficient when the angle between the measuring point and the incoming wind was among 30 - 40 degree; at different wind direction angles, the coefficients at the top and the edge areas of the model were relatively large, therefore, these areas should be strengthened when building a coal shed.