3D dynamic effective stress analyses of an Offshore Wind Turbine on suction bucket jacket foundation under earthquake loading
3D dynamic effective stress analyses of an Offshore Wind Turbine on suction bucket jacket foundation under earthquake loading
The paper presents the development and application of an advanced 3D numerical methodology simulating the seismic response of an OWT supported on a three-legged suction bucket jacket (SBJ) foundation embedded in medium dense sands and silts. The methodology incorporates:1) the full jacket geometry and superstructure inertial characteristics by means of a properly calibrated system of beams, 2) a detailed 3D simulation of suction bucket foundations with shell elements, and 3) complex effective stress soil response simulated using the Ta-Ger constitutive model. Results show that the performance is governed by the formation of a zone of limited excess pore pressure build-up around the tip of the buckets, while they further highlight the importance of employing 3D advanced numerical analyses to facilitate performance-based design.
Y. K. Chaloulos; C. Tsifis; T. Limnaiou; Panagiota Tasiopoulou; V. Drosos; Amalia Giannakou; Jacob Chacko
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
11 - Suction installed foundations and anchors
https://doi.org/10.53243/ISFOG2025-162
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