摘要
利用聊城1971～2010年地面10 min平均年最大风速资料,计算分析了历年地面最大风压的年际分布及同期内的极大风压的垂直分布,结果表明,40年间地面极端最大风压为40.0 kg/m2,出现在1978、1979年,可以作为40年一遇风压代表值,40年间地面平均风压呈下降趋势,这可能与测站环境变化有关;离地面10 m高处的极大风压为40.0 kg/m2,50 m高处风压可增大至67.0 kg/m2,100 m处风压达83.6 kg/m2,相当于36.6m/s强风的破坏力。
According to the 10 m maximum wind velocity data in Liaocheng from 1971 to 2010,the annual distribution of the maximum wind pressure and the vertical distribution of large wind pressure were analyzed.As indicated by the results,the maximum ground wind pressure during the 40 years was 40.0 kg/m2 in 1978 and 1979,which was representative.The average wind pressure was decreasing during the 40 years,which might be related to the change of measuring station environment;the maximum wind pressure was 40.0 kg/m2 10 m above the ground,67.0 kg/m2 50 m above the ground,and 83.6 kg/m2 100 m above the ground,which was equivalent to the destructive force of 36.6 m/s strong wind.
出处
《安徽农业科学》
CAS
2012年第16期9039-9040,共2页
Journal of Anhui Agricultural Sciences
关键词
风压
分布特征
聊城
Wind pressure
Distribution features
Liaocheng
