Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams

An experimental program of T-beams strengthened in shear by CFRP sheets has been developed with two longitudinal reinforcement ratios and different externally bonded CFRP shear strengthening amounts in a discontinuous or continuous U-shaped configuration with and without mechanical anchorages. The e...

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Detalhes bibliográficos
Autores: Oller Ibars, Eva|||0000-0002-0845-3587, Pujol Sánchez, Mireia|||0000-0002-8674-9033, Marí Bernat, Antonio Ricardo|||0000-0002-0994-0715
Tipo de documento: artigo
Data de publicação:2019
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositório:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglês
OAI Identifier:oai:upcommons.upc.edu:2117/126319
Acesso em linha:https://hdl.handle.net/2117/126319
https://dx.doi.org/10.1016/j.compositesb.2018.11.065
Access Level:Acceso aberto
Palavra-chave:Concrete beams
Strengthening
Shear
Externally bonded FRP
Sheets
Shear strength
Shear components
Bigues de formigó
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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oai_identifier_str oai:upcommons.upc.edu:2117/126319
network_acronym_str ES
network_name_str España
repository_id_str
spelling Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beamsOller Ibars, Eva|||0000-0002-0845-3587Pujol Sánchez, Mireia|||0000-0002-8674-9033Marí Bernat, Antonio Ricardo|||0000-0002-0994-0715Concrete beamsStrengtheningShearExternally bonded FRPSheetsShear strengthShear componentsBigues de formigóÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóAn experimental program of T-beams strengthened in shear by CFRP sheets has been developed with two longitudinal reinforcement ratios and different externally bonded CFRP shear strengthening amounts in a discontinuous or continuous U-shaped configuration with and without mechanical anchorages. The effectiveness of the external reinforcement without anchorages was low regardless the CFRP reinforcement ratio. There is an evidence of the interaction of the different shear strength components, concrete Vc, transverse steel Vs, CFRP sheets Vf that have been obtained from the registered data of the instrumentation. This interaction might explain that the ultimate shear force of some CFRP-strengthened beams was lower than the one of the control beam. There is a significant difference between the sum of the Vc, Vs, and Vf components and the total shear force. This difference is assumed to be carried out by the flange (including its internal transverse reinforcement), which represents a significant percentage of the total shear strength (with a mean value of 38%). Finally, the contribution of the CFRP has been obtained by different existing guidelines and has been compared to the experimental values.Peer ReviewedElsevier20192019-05-0120192019-01-08journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/126319https://dx.doi.org/10.1016/j.compositesb.2018.11.065reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengMinisterio de Economía y Competitividad http://doi.org/10.13039/501100003329 BIA2015-64672-C4-1-R EVALUACION DE LA CAPACIDAD RESISTENTE FRENTE A ESFUERZOS TANGENTES DE ESTRUCTURAS DE HORMIGON MEDIANTE MODELOS MECANICOS PARA LA EXTENSION DE SU VIDA UTILopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1263192026-05-27T15:37:01Z
dc.title.none.fl_str_mv Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
title Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
spellingShingle Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
Oller Ibars, Eva|||0000-0002-0845-3587
Concrete beams
Strengthening
Shear
Externally bonded FRP
Sheets
Shear strength
Shear components
Bigues de formigó
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
title_full Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
title_fullStr Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
title_full_unstemmed Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
title_sort Contribution of externally bonded FRP shear reinforcement to the shear strength of RC beams
dc.creator.none.fl_str_mv Oller Ibars, Eva|||0000-0002-0845-3587
Pujol Sánchez, Mireia|||0000-0002-8674-9033
Marí Bernat, Antonio Ricardo|||0000-0002-0994-0715
author Oller Ibars, Eva|||0000-0002-0845-3587
author_facet Oller Ibars, Eva|||0000-0002-0845-3587
Pujol Sánchez, Mireia|||0000-0002-8674-9033
Marí Bernat, Antonio Ricardo|||0000-0002-0994-0715
author_role author
author2 Pujol Sánchez, Mireia|||0000-0002-8674-9033
Marí Bernat, Antonio Ricardo|||0000-0002-0994-0715
author2_role author
author
dc.subject.none.fl_str_mv Concrete beams
Strengthening
Shear
Externally bonded FRP
Sheets
Shear strength
Shear components
Bigues de formigó
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Concrete beams
Strengthening
Shear
Externally bonded FRP
Sheets
Shear strength
Shear components
Bigues de formigó
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description An experimental program of T-beams strengthened in shear by CFRP sheets has been developed with two longitudinal reinforcement ratios and different externally bonded CFRP shear strengthening amounts in a discontinuous or continuous U-shaped configuration with and without mechanical anchorages. The effectiveness of the external reinforcement without anchorages was low regardless the CFRP reinforcement ratio. There is an evidence of the interaction of the different shear strength components, concrete Vc, transverse steel Vs, CFRP sheets Vf that have been obtained from the registered data of the instrumentation. This interaction might explain that the ultimate shear force of some CFRP-strengthened beams was lower than the one of the control beam. There is a significant difference between the sum of the Vc, Vs, and Vf components and the total shear force. This difference is assumed to be carried out by the flange (including its internal transverse reinforcement), which represents a significant percentage of the total shear strength (with a mean value of 38%). Finally, the contribution of the CFRP has been obtained by different existing guidelines and has been compared to the experimental values.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-05-01
2019
2019-01-08
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/126319
https://dx.doi.org/10.1016/j.compositesb.2018.11.065
url https://hdl.handle.net/2117/126319
https://dx.doi.org/10.1016/j.compositesb.2018.11.065
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://doi.org/10.13039/501100003329 BIA2015-64672-C4-1-R EVALUACION DE LA CAPACIDAD RESISTENTE FRENTE A ESFUERZOS TANGENTES DE ESTRUCTURAS DE HORMIGON MEDIANTE MODELOS MECANICOS PARA LA EXTENSION DE SU VIDA UTIL
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.228081

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