Study on Gust Parameters and Wind Spectrum of South China Sea

Wind loads are one of the main loads on offshore structures during typhoons in the South China Sea (SCS). The accuracy of wind turbulence characteristic parameters were very important for the calculation of wind load of these large structures and floating platforms. The parameters of the gust factor and wind spectra are studied in this paper. Characteristics of the gust factor and the turbulence during typhoon and monsoon period were analyzed by using the observational data of long-term wind on a platform in South China Sea. The relationships among the gust factor, mean wind speed and turbulence intensity were described. The most suitable wind spectrum for SCS had been compared for the different wind speed conditions. The results can provide reference and technical guarantee for the offshore constructions of SCS.