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On cyclic and dynamic pile-bearing behaviour
Citation Link: https://doi.org/10.15480/882.13265
Publikationstyp
Doctoral Thesis
Date Issued
2024
Sprache
English
Author(s)
Hagemann, Anne
Advisor
Referee
Title Granting Institution
Hamburg University of Technology
Place of Title Granting Institution
Hamburg
Examination Date
2024-06-25
Institute
TORE-DOI
First published in
Number in series
61
Citation
Technische Universität Hamburg (2024)
ISBN
978-3-936310-63-4
Today’s high demand for renewable energy requires effective and accurate design methods for offshore wind parks. On the one
hand, the design process demands an accurate prediction of accumulated displacements and, on the other hand, a reliable estimate
of foundation stiffness. Therefore, this thesis aims to gain a deeper understanding of the pile-bearing behaviour during cyclic
and dynamic loading. First, this thesis discusses a series of centrifuge tests that investigate the load-displacement behaviour of
piles embedded in medium dense and loose over dense sand subjected to axial cyclic loading. Second, an experimental study
on the validity of Miner’s rule in non-cohesive soils based on high cyclic multi-amplitude and irregular cyclic direct simple shear
experiments is presented. Third, a p-y model, which combines the analysis of cyclic deformation accumulation and dynamic analysis
of laterally loaded offshore monopiles, is derived.
hand, the design process demands an accurate prediction of accumulated displacements and, on the other hand, a reliable estimate
of foundation stiffness. Therefore, this thesis aims to gain a deeper understanding of the pile-bearing behaviour during cyclic
and dynamic loading. First, this thesis discusses a series of centrifuge tests that investigate the load-displacement behaviour of
piles embedded in medium dense and loose over dense sand subjected to axial cyclic loading. Second, an experimental study
on the validity of Miner’s rule in non-cohesive soils based on high cyclic multi-amplitude and irregular cyclic direct simple shear
experiments is presented. Third, a p-y model, which combines the analysis of cyclic deformation accumulation and dynamic analysis
of laterally loaded offshore monopiles, is derived.
Subjects
centrifuge experiments
numerical modelling
pile-soil interaction
cyclic loading
wave-type loading
damping
fatigue
DDC Class
333.7: Natural Resources, Energy and Environment
624.15: Geotechnical Engineering
620.1: Engineering Mechanics and Materials Science
Funding Organisations
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