Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019 |
| Editors | Jin S. Chung, Odd M. Akselsen, HyunWoo Jin, Hiroyasu Kawai, Yongwon Lee, Dmitri Matskevitch, Suak Ho Van, Decheng Wan, Alan M. Wang, Satoru Yamaguchi |
| Publisher | International Society of Offshore and Polar Engineers |
| ISBN (print) | 9781880653852 |
| Publication status | Published - 16 Jun 2019 |
| Event | 29th International Ocean and Polar Engineering Conference, ISOPE 2019 - Honolulu, United States Duration: 16 Jun 2019 → 21 Jun 2019 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
The foundation stiffness under operational loads is a crucial aspect for the design of monopile foundations, as key design issues, structural natural eigenfrequencies as well as the structural fatigue damage are significantly affected. According to measurement results, the current calculation methods lead to an underestimation of the actual existing foundation stiffness. Concerning this matter, this paper presents numerical simulations to derive foundation stiffnesses. Furthermore, the damping of the system is investigated from the calculated load-displacement and moment-rotation curves in order to determine the hysteretic damping ratios.
Keywords
- Damping, Foundation stiffness, Monopile, Reloading, Sand
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
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Proceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019. ed. / Jin S. Chung; Odd M. Akselsen; HyunWoo Jin; Hiroyasu Kawai; Yongwon Lee; Dmitri Matskevitch; Suak Ho Van; Decheng Wan; Alan M. Wang; Satoru Yamaguchi. International Society of Offshore and Polar Engineers, 2019. (Proceedings of the International Offshore and Polar Engineering Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Evaluation of un-and reloading stiffness and damping of monopile foundations in non-cohesive soils
AU - Saathoff, Jann Eike Sören
AU - Thieken, Klaus
AU - Achmus, Martin
PY - 2019/6/16
Y1 - 2019/6/16
N2 - The foundation stiffness under operational loads is a crucial aspect for the design of monopile foundations, as key design issues, structural natural eigenfrequencies as well as the structural fatigue damage are significantly affected. According to measurement results, the current calculation methods lead to an underestimation of the actual existing foundation stiffness. Concerning this matter, this paper presents numerical simulations to derive foundation stiffnesses. Furthermore, the damping of the system is investigated from the calculated load-displacement and moment-rotation curves in order to determine the hysteretic damping ratios.
AB - The foundation stiffness under operational loads is a crucial aspect for the design of monopile foundations, as key design issues, structural natural eigenfrequencies as well as the structural fatigue damage are significantly affected. According to measurement results, the current calculation methods lead to an underestimation of the actual existing foundation stiffness. Concerning this matter, this paper presents numerical simulations to derive foundation stiffnesses. Furthermore, the damping of the system is investigated from the calculated load-displacement and moment-rotation curves in order to determine the hysteretic damping ratios.
KW - Damping
KW - Foundation stiffness
KW - Monopile
KW - Reloading
KW - Sand
UR - http://www.scopus.com/inward/record.url?scp=85079788286&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85079788286
SN - 9781880653852
T3 - Proceedings of the International Offshore and Polar Engineering Conference
BT - Proceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019
A2 - Chung, Jin S.
A2 - Akselsen, Odd M.
A2 - Jin, HyunWoo
A2 - Kawai, Hiroyasu
A2 - Lee, Yongwon
A2 - Matskevitch, Dmitri
A2 - Ho Van, Suak
A2 - Wan, Decheng
A2 - Wang, Alan M.
A2 - Yamaguchi, Satoru
PB - International Society of Offshore and Polar Engineers
T2 - 29th International Ocean and Polar Engineering Conference, ISOPE 2019
Y2 - 16 June 2019 through 21 June 2019
ER -