Long-span bridges are strongly sensitive to wind, and it is important to accurately assess the wind field of bridge sites. Thus, to strengthen the understanding of the wind field of deep-cut gorges and study the influence effect of the wind direction on the wind characteristic parameters, the wind data from an ultrasonic anemometer installed on a catwalk and bridge tower were used to perform statistical analysis. The results show that the wind characteristic parameters (including wind speed, wind attack angle, turbulence intensity and turbulence integral scale) vary greatly between directions. In addition, the wind speed, turbulence intensity and turbulence integral scale in all directions follow the log-normal distribution, whereas the attack angle follows the normal distribution. At the same time, the effects of incoming flow direction on the distribution of wind parameters differs between spatial points. In addition, without considering the influence of wind speed, the statistical distribution of the attack angle and turbulence intensity has adverse effects on the wind resistance of the structure. Therefore, the combined effect of wind speed and incoming flow direction should be considered in the wind resistance of structures.

大跨度桥梁对风非常敏感，因此准确评估桥梁站点的风场非常重要。因此，为了加深对深切峡谷风场的了解并研究风向对风特征参数的影响，利用安装在走道和桥塔上的超声波风速计的风数据进行统计分析。 。结果表明，风向参数（包括风速，迎风角，湍流强度和湍流积分标度）在两个方向之间变化很大。另外，所有方向的风速，湍流强度和湍流积分尺度都遵循对数正态分布，而攻角遵循正态分布。同时，在空间点之间，输入流向对风参数分布的影响是不同的。另外，在不考虑风速的影响的情况下，迎角和湍流强度的统计分布对结构的抗风性具有不利影响。因此，应在结构的抗风能力中考虑风速和进风方向的综合影响。