Details
| Original language | English |
|---|---|
| Title of host publication | Coastal Structures 2019 |
| Editors | Nils Goseberg, Torsten Schlurmann |
| Place of Publication | Karlsruhe |
| Pages | 913-922 |
| Number of pages | 11 |
| ISBN (electronic) | 978-3-939230-64-9 |
| Publication status | Published - 2019 |
| Event | Coastal Structures Conference 2019 - Hannover, Germany Duration: 30 Sept 2019 → 2 Oct 2019 http://www.coastalstructures2019.com/ |
Abstract
mentioned criteria. As current design code procedures do not take into account load characteristics and the number of load cycles, they are rather unreliable and further adjustments are required to ensure a more competitive and well suited monopile design for future projects. This paper presents a short overview of current design practice and shortcomings of the calculation methods proposed by current design codes. Then, a new small-scale test setup for the investigation of lateral pile response due to 1-dimensional (one- and two-way) cyclic loading is described. A program of experiments including monotonic and cyclic loading tests to investigate the role of load characteristics, load eccentricity and pile-soil stiffness is presented. The results are evaluated and used to identify the
parameters of a correction function for displacement accumulation rate, which accounts for the type of the applied cyclic load.
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Coastal Structures 2019. ed. / Nils Goseberg; Torsten Schlurmann. Karlsruhe, 2019. p. 913-922.
Research output: Chapter in book/report/conference proceeding › Conference abstract › Research › peer review
}
TY - CHAP
T1 - Model Tests on the Displacement Accumulation of Monopiles Subjected to General Cyclic Loading
AU - Frick, Dennis
AU - Achmus, Martin
N1 - © 2019 Bundesanstalt für Wasserbau
PY - 2019
Y1 - 2019
N2 - The design of monopiles for offshore wind turbine structures is dominated by requirements resulting from serviceability and fatigue limit state as this type of foundation is primarily subjected to long-term lateral cyclic loading during its lifetime. The cycling leads to an accumulation of permanent deflections and rotations of the structure, which has to be predicted and limited to fulfil beforementioned criteria. As current design code procedures do not take into account load characteristics and the number of load cycles, they are rather unreliable and further adjustments are required to ensure a more competitive and well suited monopile design for future projects. This paper presents a short overview of current design practice and shortcomings of the calculation methods proposed by current design codes. Then, a new small-scale test setup for the investigation of lateral pile response due to 1-dimensional (one- and two-way) cyclic loading is described. A program of experiments including monotonic and cyclic loading tests to investigate the role of load characteristics, load eccentricity and pile-soil stiffness is presented. The results are evaluated and used to identify theparameters of a correction function for displacement accumulation rate, which accounts for the type of the applied cyclic load.
AB - The design of monopiles for offshore wind turbine structures is dominated by requirements resulting from serviceability and fatigue limit state as this type of foundation is primarily subjected to long-term lateral cyclic loading during its lifetime. The cycling leads to an accumulation of permanent deflections and rotations of the structure, which has to be predicted and limited to fulfil beforementioned criteria. As current design code procedures do not take into account load characteristics and the number of load cycles, they are rather unreliable and further adjustments are required to ensure a more competitive and well suited monopile design for future projects. This paper presents a short overview of current design practice and shortcomings of the calculation methods proposed by current design codes. Then, a new small-scale test setup for the investigation of lateral pile response due to 1-dimensional (one- and two-way) cyclic loading is described. A program of experiments including monotonic and cyclic loading tests to investigate the role of load characteristics, load eccentricity and pile-soil stiffness is presented. The results are evaluated and used to identify theparameters of a correction function for displacement accumulation rate, which accounts for the type of the applied cyclic load.
U2 - 10.18451/978-3-939230-64-9_091
DO - 10.18451/978-3-939230-64-9_091
M3 - Conference abstract
SP - 913
EP - 922
BT - Coastal Structures 2019
A2 - Goseberg, Nils
A2 - Schlurmann, Torsten
CY - Karlsruhe
T2 - Coastal Structures Conference 2019
Y2 - 30 September 2019 through 2 October 2019
ER -