Analysis of 50-year return period reference wind pressure and distribution pattern in Qinzhou
Using the wind speed data of 19 meteorological observation stations in Qinzhou City since the establishment of the station until 2022,the maximum wind speed with a 50-year return period was projected and then the value of the reference wind pressure was determined.The results show that the basic wind speeds at each station range from 11.7 m·s-1 to 40.4 m·s-1,and the reference wind pressures range from 0.08 kN·m-2 to 0.97 kN·m-2,both of which show a gradual decreasing distribution from the coast to the inland.The calculated value of the reference wind pressure at the Qinzhou National Meteorological Station is 0.51 kN·m-2,and the difference with the recommended value of the Load code for the design of building structures is the smallest,which is 0.04 kN·m-2,which can provide a finer reference of the reference wind pressure for the present Qinzhou area.