| 英文摘要 |
Taiwan is located on the Pacific seismic belt and the soil conditions of its offshore wind farms are softer than those in Europe. To ensure safety and stability of offshore wind turbine supporting structures, it is important to properly assess the seismic forces at the locations of these offshore wind farms. In this paper, the relevant seismic and geological data are obtained for the Chang-Bin offshore wind farm located in the Taiwan Strait. Seismic hazard analysis is carried out using the probabilistic seismic hazard analysis probability method, and the first uniform hazard response spectrum for the Chang-Bin offshore wind farm is obtained. Compared with existing design response spectra in local regulations, this site-specific seismic hazard analysis provides us with an estimate of the seismic force, which in turn is taken into account in the design of supporting structures. This has an effect on the overall cost of the supporting structures. The results show that a site-specific seismic hazard analysis is required for areas with high seismic activity. Follow-up recommendations and research directions are given for Taiwan’s offshore wind turbine supporting structures under seismic force considerations. |
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