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Experimental testing of grouted connections for offshore substructures: a critical review

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posted on 04.06.2015 by Paul Dallyn, Ashraf El-Hamalawi, Alessandro Palmeri, R. Knight
Grouted connections have been extensively used in the oil and gas industry for decades, and more recently their application has been extended to the offshore wind industry. Unfortunately plain-pipe grouted connections for large-diameter monopile foundations have recently exhibited clear signs of insufficient axial capacity, resulting in slippage between the transition piece and monopile. Motivated by the emergence of such problems, this paper presents a critical review of the technical literature related to the experimental testing for grouted connections for offshore substructures, covering all the key material and design parameters that influence their capacity, including the confinement provided by pile and sleeve, surface finish, simultaneous bending action, connection length, dynamic loading, early-age cycling during grout curing, grout shrinkage, radial pre-stress and temperature. The review also focuses on the relevance of such parameters for offshore wind applications and addresses what needs to be considered to ensure that their design achieves the desired capacity, behaviour and efficiency.

Funding

This study has been developed as part of the first author’s EngD (Engineering Doctorate) project, co-sponsored by the ESPRC (the UK Engineering and Physical Sciences Research Council) and E.ON.

History

School

  • Architecture, Building and Civil Engineering

Published in

Structures

Citation

DALLYN, P. ... et al, 2015. Experimental testing of grouted connections for offshore substructures: a critical review. Structures, 3, pp.90-108.

Publisher

© The authors, published by Elsevier Ltd on behalf of The Institution of Structural Engineers

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2015

Notes

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

eISSN

2352-0124

Language

en

Licence

Exports