Simplified method for performance-based seismic design of offshore wind turbines
A large number of offshore wind turbines (OWTs) are (or will be) installed in high-seismicity areas. Practice urgently calls for efficient performance-based design techniques. Read more...
A large number of offshore wind turbines (OWTs) are (or will be) installed in high-seismicity areas. Practice urgently calls for efficient performance-based design techniques. With the aid of finite element modelling, Antoniou et al. (2022) propose a simplified method for performance-based seismic design of OWTs founded on Suction Bucket Jackets (SBJ) in clay, subjected to combined environmental and seismic loading. A Winkler-type model is developed, capturing residual deformations and hysteresis. The deficiency of decoupled methods to capture residual caisson co-seismic settlements is explained. Insights are given on the key mechanisms that affect the accumulation of settlements, while an engineering-based methodology is developed for their prediction.
The relevant journal publication is available here (open access):
👉 external pagehttps://doi.org/10.1016/j.soildyn.2022.107169