中文摘要：

针对湖南郴州赤石大桥桥位的风特性进行了现场实测,统计了观测器内大风天数与风向情况,对大风时段沿桥轴向各测点的风速、风向、风攻角及紊流度等风特性参数进行了分析。结果表明：观测期间桥位处存在瞬时突变风现象;受地形影响,风向以南北向为主,且大风时段风向为南风,风攻角变化较小;沿桥轴向个测点的平均风速、风向、风攻角变化基本一致。

英文摘要：

Field measurement of wind characteristics in the mountainous terrain were conducted. The number of gale days and wind direction were observed during the observation period. The wind characteristics of each measuring point is analyzed, such as wind speeds, wind directions, wind attack angles and turbulence intensities. The results showed that the suddenly change in wind speed are recorded dur- ing the measurement periods. Affected by topography, the wind direction is mainly from the north or the south direction, and the wind attack angles vary within a narrow range when wind come from the south. The average wind speed, wind direction and angle of attack along the axial direction of the bridge are ba- sically the same, and the influence of the terrain is small