Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 91-98 |
| Seitenumfang | 8 |
| Fachzeitschrift | International Journal of Offshore and Polar Engineering |
| Jahrgang | 35 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - März 2025 |
Abstract
Steel piles driven into the seabed for offshore structures regularly experience monotonic and cyclic axial loading. The bearing capacity of these piles under cyclic loading degrades with the number of cycles due to the reduction in skin friction. Limited experimental data has led to the development of interaction diagrams, which predict the number of loading cycles until failure based on the mean load and the amplitude of the cyclic load, both often normalized through the static pile bearing capacity. However, these diagrams do not account for varying soil conditions or pile geometries. In this paper, the authors extend the previously developed Capacity Degradation Method (CDM) by incorporating the hypoplastic material law, which accounts for loading and unloading paths, stress levels, and the change of soil void ratios. New interaction diagrams have been developed for different pile geometries. Additionally, the pullout capacities of piles with varying diameters and embedded lengths under different loading cycles are investigated.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
- Ingenieurwesen (insg.)
- Meerestechnik
- Ingenieurwesen (insg.)
- Maschinenbau
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in: International Journal of Offshore and Polar Engineering, Jahrgang 35, Nr. 1, 03.2025, S. 91-98.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Effect of Material Law on the Behavior of Offshore Steel Piles under Cyclic Axial Loading
AU - Abdel-Rahman, Khalid
AU - Cao, Shuhan
AU - Achmus, Martin
N1 - Publisher Copyright: © 2025, International Society of Offshore and Polar Engineers. All rights reserved.
PY - 2025/3
Y1 - 2025/3
N2 - Steel piles driven into the seabed for offshore structures regularly experience monotonic and cyclic axial loading. The bearing capacity of these piles under cyclic loading degrades with the number of cycles due to the reduction in skin friction. Limited experimental data has led to the development of interaction diagrams, which predict the number of loading cycles until failure based on the mean load and the amplitude of the cyclic load, both often normalized through the static pile bearing capacity. However, these diagrams do not account for varying soil conditions or pile geometries. In this paper, the authors extend the previously developed Capacity Degradation Method (CDM) by incorporating the hypoplastic material law, which accounts for loading and unloading paths, stress levels, and the change of soil void ratios. New interaction diagrams have been developed for different pile geometries. Additionally, the pullout capacities of piles with varying diameters and embedded lengths under different loading cycles are investigated.
AB - Steel piles driven into the seabed for offshore structures regularly experience monotonic and cyclic axial loading. The bearing capacity of these piles under cyclic loading degrades with the number of cycles due to the reduction in skin friction. Limited experimental data has led to the development of interaction diagrams, which predict the number of loading cycles until failure based on the mean load and the amplitude of the cyclic load, both often normalized through the static pile bearing capacity. However, these diagrams do not account for varying soil conditions or pile geometries. In this paper, the authors extend the previously developed Capacity Degradation Method (CDM) by incorporating the hypoplastic material law, which accounts for loading and unloading paths, stress levels, and the change of soil void ratios. New interaction diagrams have been developed for different pile geometries. Additionally, the pullout capacities of piles with varying diameters and embedded lengths under different loading cycles are investigated.
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=105000026845&partnerID=8YFLogxK
U2 - 10.17736/ijope.2025.ar03
DO - 10.17736/ijope.2025.ar03
M3 - Article
AN - SCOPUS:105000026845
VL - 35
SP - 91
EP - 98
JO - International Journal of Offshore and Polar Engineering
JF - International Journal of Offshore and Polar Engineering
SN - 1053-5381
IS - 1
ER -