Results of Initial Large-scale Model Tests to Validate Monitoring Systems for Grouted Connections of Offshore Monopiles

authored by: Martin Kohlmeier, Dariya Heinrich, Severin Spill, Mareike Collmann, Dennis Dreger, Tobias Schossig
Abstract: Validated offshore applicable approaches in structural health monitoring can reduce the maintenance costs of offshore wind farms. To evaluate such monitoring systems for grouted connections, large-scale model tests were carried out at the Test Center Support Structures in Hannover. The results were used to identify the process of damage at an early stage. For this purpose, a support structure model with a grouted connection was designed containing fiber Bragg grating sensors placed at certain positions of the grout layer. In this contribution, the test strategy and its setup are presented. Finally, the suitability of the sensors is shown by means of first experimental results.
Organisation(s): Testzentrum Tragstrukturen
Institute of Building Materials Science
External Organisation(s): Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM)
Miopas GmbH
Type: Article
Journal: International Journal of Offshore and Polar Engineering
Volume: 34
Pages: 322-331
No. of pages: 10
ISSN: 1053-5381
Publication date: 09.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Civil and Structural Engineering, Ocean Engineering, Mechanical Engineering
Electronic version(s): https://doi.org/10.17736/ijope.2024.cl26 (Access: Closed)

BibTeX

@article{1554e8619a1e46c1af61281e530c2670,
title = "Results of Initial Large-scale Model Tests to Validate Monitoring Systems for Grouted Connections of Offshore Monopiles",
abstract = "Validated offshore applicable approaches in structural health monitoring can reduce the maintenance costs of offshore wind farms. To evaluate such monitoring systems for grouted connections, large-scale model tests were carried out at the Test Center Support Structures in Hannover. The results were used to identify the process of damage at an early stage. For this purpose, a support structure model with a grouted connection was designed containing fiber Bragg grating sensors placed at certain positions of the grout layer. In this contribution, the test strategy and its setup are presented. Finally, the suitability of the sensors is shown by means of first experimental results.",
keywords = "damage detection, fiber Bragg grating, grout degradation mechanism, Grouted connection, large-scale testing, monopile foundation, structural health monitoring",
author = "Martin Kohlmeier and Dariya Heinrich and Severin Spill and Mareike Collmann and Dennis Dreger and Tobias Schossig",
note = "Publisher Copyright: {\textcopyright} by The International Society of Offshore and Polar Engineers.",
year = "2024",
month = sep,
doi = "10.17736/ijope.2024.cl26",
language = "English",
volume = "34",
pages = "322--331",
journal = "International Journal of Offshore and Polar Engineering",
issn = "1053-5381",
publisher = "International Society of Offshore and Polar Engineers",
number = "3",
}