通过刚性模型风洞测压试验，对锥形涡及其诱导下的菱形马鞍屋盖表面风荷载进行了系统研究：⒈分析了锥形涡诱导下的屋盖表面平均、脉动风压分布特点；通过脉动风压谱，着重分析了马鞍迎风前缘（易损区域）的平均、脉动风压分布机理。⒉通过风压信息确定了锥形涡的特征参数（涡核位置、作用范围），给出了定量结果；分析了锥形涡涡轴的左右摇摆运动，分别从定性和定量方面建立了锥形涡涡轴的运动与屋面吸力脉动之间的关系。⒊用测点风压时程的三、四阶矩对风压的非高斯特性进行描述，给出划分高斯、非高斯区的标准，并在此基础上对马鞍屋盖表面进行了分区；分析了锥形涡作用下屋盖表面风压非高斯特性的产生机理。

Conical vortex and the induced wind load on saddle roof are investigated by wind tunnel test. The mean and fluctuating pressure distribution associated with conical vortex on saddle roof are presented and discussed, with emphasis on the mechanism of wind pressure characteristics along the leading edge. Some character parameter of conical vortex, such as the axis of the conical vortex and the coverage area, are identified through contour maps of roof surface wind pressure coefficient. The sway of the axis of conical vortex is analyzed, on the basis of which the qualitative and quantitative relations between conical vortex movement and suction fluctuation on roof surface are established respectively. Based on the third and fourth order statistical moment of wind pressure, non-Gaussian region on roof surface is located. The mechanism of non-Gaussian feature related with conical vortex is also clarified.