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Title: Importance of the soil–structure interaction in the optimisation of the jacket designs of offshore wind turbines
Authors: Quevedo Reina, Román 
Álamo Meneses, Guillermo Manuel 
François, Stijn
Lombaert, Geert
Aznárez González, Juan José 
UNESCO Clasification: 330531 Mecánica del suelo (construcción)
330532 Ingeniería de estructuras
330533 Resistencia de estructuras
Keywords: Jacket Structure
Offshore Wind Turbine
Pile Foundation
Soil–Structure Interaction Effects
Structural Optimisation
Issue Date: 2024
Journal: Ocean Engineering 
Abstract: Advances in the design process and understanding of the structural behaviour of jacket-type foundations for offshore wind turbines are fundamental to the expansion of these devices in medium-depth waters. The structural evaluation of jacket foundations is a complex and computationally expensive task because of the large number of structural elements and numerous load scenarios and requirements imposed by international standards. In this context, the soil–structure interaction is not usually incorporated into the optimisation process of these devices, assuming that the foundation flexibility does not significantly affect the supporting structure. This study investigated an approach for analysing the influence of the soil–structure interaction on the structural design. To perform a relevant analysis, an optimisation process was used to obtain feasible designs for a 10-MW wind turbine in a specific location. To optimise and evaluate the jackets, a structural model based on static equivalent analysis of the most representative load scenarios for environmental loads was used. The obtained designs highlight the importance of considering the soil–structure interaction for evaluating the technical requirements imposed on these structures, especially in the ultimate limit states.
ISSN: 0029-8018
DOI: 10.1016/j.oceaneng.2024.117802
Source: Ocean Engineering [ISSN 0029-8018], v. 303, (Julio 2024)
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