Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015 |
| Publisher | International Society of Offshore and Polar Engineers |
| Pages | 755-760 |
| Number of pages | 6 |
| ISBN (electronic) | 9781880653890 |
| Publication status | Published - 2015 |
| Event | 25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States Duration: 21 Jun 2015 → 26 Jun 2015 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| Volume | 2015-January |
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
Piles used as foundation elements for support structures of offshore wind energy converters (OWECs) are subject to highly cyclic tension or compressive loading. It is known from a number of field and model tests that piles under cyclic axial loading can exhibit a significant reduction of capacity compared to the static loading case. Interaction diagrams have been developed, which give the number of load cycles leading to failure dependent on the mean load and the amplitude of the cyclic load portion, both related to the static capacity. However, such diagrams cannot account for soil conditions or pile geometry. A generally valid calculation approach is not yet available. In this paper a numerical simulation scheme applicable to sandy soil is presented, which allows developing interaction diagrams for arbitrary pile dimensions. The calculation results for two piles with different dimensions in sand under one-way cyclic loading in tension are presented and compared to existing interaction diagrams.
Keywords
- Capacity degradation, Cyclic loading, Interaction diagram, Piles, Wind energy converter
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 25th International Ocean and Polar Engineering Conference, ISOPE 2015. International Society of Offshore and Polar Engineers, 2015. p. 755-760 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2015-January).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Numerical approach for the derivation of interaction diagrams for piles under cyclic axial loading
AU - Achmus, Martin
AU - Lemke, Katrin
AU - Abdel-Rahman, Khalid
AU - Kuo, Yu Shu
PY - 2015
Y1 - 2015
N2 - Piles used as foundation elements for support structures of offshore wind energy converters (OWECs) are subject to highly cyclic tension or compressive loading. It is known from a number of field and model tests that piles under cyclic axial loading can exhibit a significant reduction of capacity compared to the static loading case. Interaction diagrams have been developed, which give the number of load cycles leading to failure dependent on the mean load and the amplitude of the cyclic load portion, both related to the static capacity. However, such diagrams cannot account for soil conditions or pile geometry. A generally valid calculation approach is not yet available. In this paper a numerical simulation scheme applicable to sandy soil is presented, which allows developing interaction diagrams for arbitrary pile dimensions. The calculation results for two piles with different dimensions in sand under one-way cyclic loading in tension are presented and compared to existing interaction diagrams.
AB - Piles used as foundation elements for support structures of offshore wind energy converters (OWECs) are subject to highly cyclic tension or compressive loading. It is known from a number of field and model tests that piles under cyclic axial loading can exhibit a significant reduction of capacity compared to the static loading case. Interaction diagrams have been developed, which give the number of load cycles leading to failure dependent on the mean load and the amplitude of the cyclic load portion, both related to the static capacity. However, such diagrams cannot account for soil conditions or pile geometry. A generally valid calculation approach is not yet available. In this paper a numerical simulation scheme applicable to sandy soil is presented, which allows developing interaction diagrams for arbitrary pile dimensions. The calculation results for two piles with different dimensions in sand under one-way cyclic loading in tension are presented and compared to existing interaction diagrams.
KW - Capacity degradation
KW - Cyclic loading
KW - Interaction diagram
KW - Piles
KW - Wind energy converter
UR - http://www.scopus.com/inward/record.url?scp=84944685501&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84944685501
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 755
EP - 760
BT - Proceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015
PB - International Society of Offshore and Polar Engineers
T2 - 25th International Ocean and Polar Engineering Conference, ISOPE 2015
Y2 - 21 June 2015 through 26 June 2015
ER -