Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars

[EN] Distributed fibre optical sensing (DFOS) allows for quasi-continuous strain measurement in a broad range of gauge lengths and measurement frequencies. In particular, Rayleigh backscatter-based coherent optical frequency domain reflectometry has recently registered a significant application incr...

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Autores: Galkovski, Tena, Lemcherreq, Yasmin, Kaufmann, Walter, Mata Falcon, Jaime|||0000-0001-8701-4410
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/220213
Acesso em linha:https://riunet.upv.es/handle/10251/220213
Access Level:acceso abierto
Palavra-chave:Distributed fibre optical sensing
Reinforcing steel
Concrete compression
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spelling Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing BarsGalkovski, TenaLemcherreq, YasminKaufmann, WalterMata Falcon, Jaime|||0000-0001-8701-4410Distributed fibre optical sensingReinforcing steelConcrete compression[EN] Distributed fibre optical sensing (DFOS) allows for quasi-continuous strain measurement in a broad range of gauge lengths and measurement frequencies. In particular, Rayleigh backscatter-based coherent optical frequency domain reflectometry has recently registered a significant application increase in structural concrete research and monitoring thanks to its numerous merits, such as high resolution and low invasiveness. However, it is not a plug-and-play technique. The quality of the acquired data depends highly on the choice of the fibre optical sensor and the methods of instrumentation and post-processing. Furthermore, its unprecedented resolution and sensitivity allow capturing local effects not well documented so far. This paper analyses the suitability of DFOS based on Rayleigh backscatter for reliably measuring strains and discusses the origin and structural relevance of local variations in the results. A series of experimental investigations are presented, comprising tensile tests on bare reinforcing bars and concrete compression tests. A critical analysis of the results leads to a best practice for applying DFOS to reinforcing bars and concrete, which establishes a basis for reliable, accurate measurements in structural concrete applications with bonded reinforcement.MDPI AGDepartamento de Mecánica de los Medios Continuos y Teoría de EstructurasEscuela Técnica Superior de Ingeniería de Caminos, Canales y PuertosRepositorio Institucional de la Universitat Politècnica de València Riunet20212021-11-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/220213reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2202132026-06-13T07:49:27Z
dc.title.none.fl_str_mv Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
title Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
spellingShingle Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
Galkovski, Tena
Distributed fibre optical sensing
Reinforcing steel
Concrete compression
title_short Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
title_full Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
title_fullStr Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
title_full_unstemmed Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
title_sort Fundamental Studies on the Use of Distributed Fibre Optical Sensing on Concrete and Reinforcing Bars
dc.creator.none.fl_str_mv Galkovski, Tena
Lemcherreq, Yasmin
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author Galkovski, Tena
author_facet Galkovski, Tena
Lemcherreq, Yasmin
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author_role author
author2 Lemcherreq, Yasmin
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras
Escuela Técnica Superior de Ingeniería de Caminos, Canales y Puertos
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Distributed fibre optical sensing
Reinforcing steel
Concrete compression
topic Distributed fibre optical sensing
Reinforcing steel
Concrete compression
description [EN] Distributed fibre optical sensing (DFOS) allows for quasi-continuous strain measurement in a broad range of gauge lengths and measurement frequencies. In particular, Rayleigh backscatter-based coherent optical frequency domain reflectometry has recently registered a significant application increase in structural concrete research and monitoring thanks to its numerous merits, such as high resolution and low invasiveness. However, it is not a plug-and-play technique. The quality of the acquired data depends highly on the choice of the fibre optical sensor and the methods of instrumentation and post-processing. Furthermore, its unprecedented resolution and sensitivity allow capturing local effects not well documented so far. This paper analyses the suitability of DFOS based on Rayleigh backscatter for reliably measuring strains and discusses the origin and structural relevance of local variations in the results. A series of experimental investigations are presented, comprising tensile tests on bare reinforcing bars and concrete compression tests. A critical analysis of the results leads to a best practice for applying DFOS to reinforcing bars and concrete, which establishes a basis for reliable, accurate measurements in structural concrete applications with bonded reinforcement.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/220213
url https://riunet.upv.es/handle/10251/220213
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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