Fault Source Characterization of Probabilistic Seismic Hazard Analysis for the Sites of Offshore Wind Turbine in Taiwan

摘要

During seismic hazards, offshore wind turbine structures do not have direct effects on people's safety; however, the seismic design is still important to prevent heavy damage on structure. The seismic design of offshore wind turbine has been discussed in some previous studies. Based on the result of those studies, we further modified the seismic source, especially on active faults in west foot hill zone. Of all the active faults in this area, we choose five which lie nearby the sites to make the modification. A logic tree has been set to avoid overlapping and derive an accurate recurrence model of the seismic source used in PSHA. This study is just a preliminary result of PSHA in wind turbine sites, Chunan and Chanbin, there are still several adjustments need to be done.