Details
| Original language | English |
|---|---|
| Title of host publication | Computational Geomechanics, COMGEO III |
| Subtitle of host publication | Proceedings of the 3nd International Symposium on Computational Geomechanics |
| Editors | S. Pietruszczak, G.N. Pande |
| Pages | 586-597 |
| Number of pages | 12 |
| ISBN (electronic) | 9789609875028 |
| Publication status | Published - 2013 |
| Event | 3nd International Symposium on Computational Geomechanics, ComGeo 2013 - Krakow, Poland Duration: 21 Aug 2013 → 23 Aug 2013 |
Publication series
| Name | Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics |
|---|
Abstract
The suction bucket foundation is a relatively new concept for the foundation of offshore wind energy converters. If only one bucket is installed (monopod), the structure is loaded by large horizontal forces and overturning moments. Besides the failure load and the initial stiffness, also the accumulation of head rotations of the foundation structure under cyclic loads has to be considered in the design. The behavior of buckets in sand under monotonic and cyclic horizontal loading is investigated in the paper by means of 3D finite element simulations. An elasto-plastic material law with stress-dependent stiffness approach is used herein. To investigate the behavior of a bucket under cyclic loading, a special numerical scheme originally developed for pile foundations (stiffness degradation method) is applied to the bucket system. The results of a parametric study show that the rate of accumulation of the bucket lid rotation depends on the relative skirt length of the bucket, on the relative density of the sand and also to a certain extent on the load level, i.e. the relative magnitude of the applied load.
ASJC Scopus subject areas
- Mathematics(all)
- Computational Mathematics
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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Computational Geomechanics, COMGEO III : Proceedings of the 3nd International Symposium on Computational Geomechanics. ed. / S. Pietruszczak; G.N. Pande. 2013. p. 586-597 (Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Load bearing behavior of bucket foundations in sand
AU - Achmus, M.
AU - Thieken, K.
AU - Akdag, C. T.
AU - Schröder, C.
AU - Spohn, C.
N1 - Funding Information: This study was partly carried out in the scope of the research project "WindBucket" funded by the Federal Ministry for the Environment, Nature Conversation and Nuclear Safety, Germany (BMU). The authors sincerely acknowledge BMU support.
PY - 2013
Y1 - 2013
N2 - The suction bucket foundation is a relatively new concept for the foundation of offshore wind energy converters. If only one bucket is installed (monopod), the structure is loaded by large horizontal forces and overturning moments. Besides the failure load and the initial stiffness, also the accumulation of head rotations of the foundation structure under cyclic loads has to be considered in the design. The behavior of buckets in sand under monotonic and cyclic horizontal loading is investigated in the paper by means of 3D finite element simulations. An elasto-plastic material law with stress-dependent stiffness approach is used herein. To investigate the behavior of a bucket under cyclic loading, a special numerical scheme originally developed for pile foundations (stiffness degradation method) is applied to the bucket system. The results of a parametric study show that the rate of accumulation of the bucket lid rotation depends on the relative skirt length of the bucket, on the relative density of the sand and also to a certain extent on the load level, i.e. the relative magnitude of the applied load.
AB - The suction bucket foundation is a relatively new concept for the foundation of offshore wind energy converters. If only one bucket is installed (monopod), the structure is loaded by large horizontal forces and overturning moments. Besides the failure load and the initial stiffness, also the accumulation of head rotations of the foundation structure under cyclic loads has to be considered in the design. The behavior of buckets in sand under monotonic and cyclic horizontal loading is investigated in the paper by means of 3D finite element simulations. An elasto-plastic material law with stress-dependent stiffness approach is used herein. To investigate the behavior of a bucket under cyclic loading, a special numerical scheme originally developed for pile foundations (stiffness degradation method) is applied to the bucket system. The results of a parametric study show that the rate of accumulation of the bucket lid rotation depends on the relative skirt length of the bucket, on the relative density of the sand and also to a certain extent on the load level, i.e. the relative magnitude of the applied load.
UR - http://www.scopus.com/inward/record.url?scp=84976543929&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84976543929
T3 - Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics
SP - 586
EP - 597
BT - Computational Geomechanics, COMGEO III
A2 - Pietruszczak, S.
A2 - Pande, G.N.
T2 - 3nd International Symposium on Computational Geomechanics, ComGeo 2013
Y2 - 21 August 2013 through 23 August 2013
ER -