Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 34th International Ocean and Polar Engineering Conference, 2024 |
| Publisher | International Society of Offshore and Polar Engineers |
| Pages | 1183-1190 |
| Number of pages | 8 |
| ISBN (print) | 9781880653784 |
| Publication status | Published - 2024 |
| Event | 34th International Ocean and Polar Engineering Conference, ISOPE 2024 - Rhodes, Greece Duration: 16 Jun 2024 → 21 Jun 2024 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| Volume | 1 |
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
The driven steel piles used as foundations for the offshore structures are often subjected not only to monotonic but also to cyclic axial loading. The pile capacity under cyclic loading decreases with number of loading cycles due to the reduction of pile skin friction. From the limited number of tests available, 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 pile capacity. However, such diagrams cannot account for different soil conditions or pile geometry. In this paper, the method “Capacity Degradation Method (CDM)” developed by the authors was extended using the Hypoplastic material law, which considers the effect of loading and unloading path, stress level and the soil void ratio. Based on different pile geometries, new interaction diagrams have been developed. The pullout capacity of piles with different pile diameter and embedded lengths under different loading cycles are also presented.
Keywords
- Capacity Degradation Method (CDM), cyclic axial loading, Hypoplasticity model with intergranular strain, Interaction diagrams, Piles
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 34th International Ocean and Polar Engineering Conference, 2024. International Society of Offshore and Polar Engineers, 2024. p. 1183-1190 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Behaviour of Offshore Steel Piles under Cyclic Axial Loading using CDM with Hypoplasticity
AU - Abdel-Rahman, Khalid
AU - Cao, Shuhan
AU - Achmus, Martin
N1 - Publisher Copyright: © 2024 by the International Society of Offshore and Polar Engineers (ISOPE).
PY - 2024
Y1 - 2024
N2 - The driven steel piles used as foundations for the offshore structures are often subjected not only to monotonic but also to cyclic axial loading. The pile capacity under cyclic loading decreases with number of loading cycles due to the reduction of pile skin friction. From the limited number of tests available, 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 pile capacity. However, such diagrams cannot account for different soil conditions or pile geometry. In this paper, the method “Capacity Degradation Method (CDM)” developed by the authors was extended using the Hypoplastic material law, which considers the effect of loading and unloading path, stress level and the soil void ratio. Based on different pile geometries, new interaction diagrams have been developed. The pullout capacity of piles with different pile diameter and embedded lengths under different loading cycles are also presented.
AB - The driven steel piles used as foundations for the offshore structures are often subjected not only to monotonic but also to cyclic axial loading. The pile capacity under cyclic loading decreases with number of loading cycles due to the reduction of pile skin friction. From the limited number of tests available, 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 pile capacity. However, such diagrams cannot account for different soil conditions or pile geometry. In this paper, the method “Capacity Degradation Method (CDM)” developed by the authors was extended using the Hypoplastic material law, which considers the effect of loading and unloading path, stress level and the soil void ratio. Based on different pile geometries, new interaction diagrams have been developed. The pullout capacity of piles with different pile diameter and embedded lengths under different loading cycles are also presented.
KW - Capacity Degradation Method (CDM)
KW - cyclic axial loading
KW - Hypoplasticity model with intergranular strain
KW - Interaction diagrams
KW - Piles
UR - http://www.scopus.com/inward/record.url?scp=85200756036&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85200756036
SN - 9781880653784
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 1183
EP - 1190
BT - Proceedings of the 34th International Ocean and Polar Engineering Conference, 2024
PB - International Society of Offshore and Polar Engineers
T2 - 34th International Ocean and Polar Engineering Conference, ISOPE 2024
Y2 - 16 June 2024 through 21 June 2024
ER -