Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 29th European Safety and Reliability Conference |
| Subtitle of host publication | ESREL 2019 |
| Editors | Michael Beer, Enrico Zio |
| Pages | 3638-3645 |
| Number of pages | 8 |
| ISBN (electronic) | 9789811127243 |
| Publication status | Published - 2019 |
| Event | 29th European Safety and Reliability Conference, ESREL 2019 - Leibniz University Hannover, Hannover, Germany Duration: 22 Sept 2019 → 26 Sept 2019 |
Abstract
Offshore wind energy converters (OWEC) are often erected on monopile foundations. When designing laterally loaded piles, uncertainties due to the inherent variability of the soil properties and loads are taken into account by using partial factors of safety. These factors shall establish at least a minimum safety level of β = 3.8 for reliability class RC2 according to the reliability index concept in Eurocode-0 in conjunction with Eurocode-7. The reliability of the system depends heavily on the choice of the prespecified safety factor and the choice of the characteristic soil properties. The safety factors stated in the standards are mainly based on experience. In current engineering practice, no general accepted method of the calculation of a characteristic value exists. In this study the influence of the chosen quantile values of the deterministic system for a laterally loaded monopile foundation calculated with p-y curves will be presented. Finally, a recommendation for an appropriate quantile value for the necessary safety level according to the standards for a deterministic design is given.
Keywords
- Asymptotic sampling, Characteristic value, Lateral loading, Monopile foundation, Offshore, Probabilistic design, Quantile values
ASJC Scopus subject areas
- Engineering(all)
- Safety, Risk, Reliability and Quality
- Social Sciences(all)
- Safety Research
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Proceedings of the 29th European Safety and Reliability Conference: ESREL 2019. ed. / Michael Beer; Enrico Zio. 2019. p. 3638-3645.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Investigation on the reliability of laterally loaded monopile foundations
AU - Saathoff, Jann Eike
AU - Schmoor, Kirill Alexander
AU - Achmus, Martin
AU - Terceros, Mauricio
PY - 2019
Y1 - 2019
N2 - Offshore wind energy converters (OWEC) are often erected on monopile foundations. When designing laterally loaded piles, uncertainties due to the inherent variability of the soil properties and loads are taken into account by using partial factors of safety. These factors shall establish at least a minimum safety level of β = 3.8 for reliability class RC2 according to the reliability index concept in Eurocode-0 in conjunction with Eurocode-7. The reliability of the system depends heavily on the choice of the prespecified safety factor and the choice of the characteristic soil properties. The safety factors stated in the standards are mainly based on experience. In current engineering practice, no general accepted method of the calculation of a characteristic value exists. In this study the influence of the chosen quantile values of the deterministic system for a laterally loaded monopile foundation calculated with p-y curves will be presented. Finally, a recommendation for an appropriate quantile value for the necessary safety level according to the standards for a deterministic design is given.
AB - Offshore wind energy converters (OWEC) are often erected on monopile foundations. When designing laterally loaded piles, uncertainties due to the inherent variability of the soil properties and loads are taken into account by using partial factors of safety. These factors shall establish at least a minimum safety level of β = 3.8 for reliability class RC2 according to the reliability index concept in Eurocode-0 in conjunction with Eurocode-7. The reliability of the system depends heavily on the choice of the prespecified safety factor and the choice of the characteristic soil properties. The safety factors stated in the standards are mainly based on experience. In current engineering practice, no general accepted method of the calculation of a characteristic value exists. In this study the influence of the chosen quantile values of the deterministic system for a laterally loaded monopile foundation calculated with p-y curves will be presented. Finally, a recommendation for an appropriate quantile value for the necessary safety level according to the standards for a deterministic design is given.
KW - Asymptotic sampling
KW - Characteristic value
KW - Lateral loading
KW - Monopile foundation
KW - Offshore
KW - Probabilistic design
KW - Quantile values
UR - http://www.scopus.com/inward/record.url?scp=85089199924&partnerID=8YFLogxK
U2 - 10.3850/978-981-11-2724-3_0686-cd
DO - 10.3850/978-981-11-2724-3_0686-cd
M3 - Conference contribution
AN - SCOPUS:85089199924
SP - 3638
EP - 3645
BT - Proceedings of the 29th European Safety and Reliability Conference
A2 - Beer, Michael
A2 - Zio, Enrico
T2 - 29th European Safety and Reliability Conference, ESREL 2019
Y2 - 22 September 2019 through 26 September 2019
ER -