Abstract
To accommodate the foreseen expansion of the offshore wind sector, monopile-supported Offshore Wind Turbines (OWTs) are currently being designed for harvesting offshore wind energy in seismically active regions. Three-dimensional (3D) Finite Element (FE) analyses have proven a reliable, though computationally expensive, tool for modelling laterally loaded monopiles. A more efficient modelling approach is the one-dimensional (1D) Beam-on-Winkler-Foundation (BWF) method, where the monopile is modelled via a series of beam elements, laterally supported by uncoupled, lateral soil springs. Under the simplifying assumption of linear elastic soil behaviour, this study explores the suitability of the BWF method for the simulation of the seismic soil-structure interaction by comparing the response obtained through 1D modelling to the outcome of 3D FE calculations. To this end, different monopile geometries are examined, for which the contributions of multiple soil resisting mechanisms (determined by normal and tangential stresses along the pile shaft and base) to the global monopile response are also assessed.
| Original language | English |
|---|---|
| Title of host publication | Offshore Site Investigation Geotechnics 9th International Conference Proceeding |
| Publisher | Society for Underwater Technology |
| Pages | 1160-1167 |
| Number of pages | 8 |
| ISBN (Print) | 9780906940594 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 9th International SUT Offshore Site Investigation and Geotechnics Conference 2023: Innovative Geotechnologies for Energy Transition - Imperial College London, Sherfield Building, London, United Kingdom Duration: 12 Sept 2023 → 14 Sept 2023 https://sut.org/event/osig2023/ |
Publication series
| Name | Offshore Site Investigation and Geotechnics |
|---|---|
| ISSN (Print) | 2754-6322 |
Conference
| Conference | 9th International SUT Offshore Site Investigation and Geotechnics Conference 2023 |
|---|---|
| Abbreviated title | SUT OSIG 2023 |
| Country/Territory | United Kingdom |
| City | London |
| Period | 12/09/23 → 14/09/23 |
| Other | OSIG is the longest standing international conference series of this type. It brings together the offshore Geotechnical, Geophysical & Geoscientific industry & academic communities to share the latest research, knowledge and experience. Building on the success of previous events, the programme will encompass a wide range of technical themes, aiming to attract hundreds of international delegates. Social and networking events are also being programmed, culminating in a dinner and evening event at the Natural History Museum, London, with an exciting guest speaker. |
| Internet address |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.