Investigations on macro-element modelling of bucket foundations for offshore wind turbines

Aligi Foglia, Laura Govoni, Guido Gottardi, Lars Bo Ibsen

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Abstract

In this report a macro-element model for bucket foundations is formulated and validated against small-scale experimental results. The topics investigated are the response of the foundation under general monotonic loading and the long-term accumulated displacements under cyclic loading. The macro-model for shallow foundations proposed by Nova and Montrasio (1991) is modified to comply with the response of skirted foundations for offshore wind turbines under general loading. On the base of di Prisco et al. (2003a), the constitutive relationship is modified to account for cyclic loading. The validation of the macro-model against the physical experiments shows promising results.
Original languageEnglish
Place of PublicationAalborg
PublisherDepartment of Civil Engineering, Aalborg University
Number of pages37
Publication statusPublished - 2014
SeriesDCE Technical Memorandum
Number48
ISSN1901-7278

Keywords

  • Bucket foundations
  • Offshore wind turbines
  • Macro-element modelling

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