Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression

Carbon fiber jacketing is an efficient technique for increasing the strength and strain capacity of concrete circular and square section columns subjected to axial load, although confinement efficiency decreases for rectangular cross-section members. The research project BIA 2016-80310-P includes an...

Descripción completa

Detalles Bibliográficos
Autores: Gutiérrez, José Pedro, Martínez de Mingo, Sonia, Diego, Ana de, Castro, Viviana J., Echevarría, Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/259445
Acceso en línea:http://hdl.handle.net/10261/259445
Access Level:acceso abierto
Palabra clave:Concrete
Composite materials
Compressive strength
Confinement
Structural strengthening
id ES_abd0cc67303043df8b280f4ba67d0970
oai_identifier_str oai:digital.csic.es:10261/259445
network_acronym_str ES
network_name_str España
repository_id_str
spelling Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compressionGutiérrez, José PedroMartínez de Mingo, SoniaDiego, Ana deCastro, Viviana J.Echevarría, LuisConcreteComposite materialsCompressive strengthConfinementStructural strengtheningCarbon fiber jacketing is an efficient technique for increasing the strength and strain capacity of concrete circular and square section columns subjected to axial load, although confinement efficiency decreases for rectangular cross-section members. The research project BIA 2016-80310-P includes an experimental program on intermediate-size plain concrete specimens strengthened with carbon fiber jackets, mostly with square and rectangular cross-sections. The results, alongside others with similar characteristics from two databases published, are compared to predictions of four international guides. The incidence of the key parameters in the experimental results is analyzed, such as the aspect ratio of the section, the effective strain in FRP jacket attained at failure or the rounded corner radius. As a result, two efficiency strain factors are proposed, one for circular and another for rectangular specimens. The predictions contained in certain guides, based on a simple linear design-model, are improved by using the proposed efficiency strain factor for rectangular sections.This work is part of research project BIA2016-80310-P, funded by the Spanish Research Agency (AEI) and the European Regional Development Fund (ERDF). V.J. Castro acknowledges the financial support (FPI grant BES2017-080647) of the Spanish MICINN and the European Social Fund. S. Martínez acknowledges the financial support of Project PIE-202060E267 funded by the Spanish National Research Council. The experimental program has been carried out in the Mechanical Laboratory of the Eduardo Torroja Institute for Construction Science (IETcc, CSIC). The authors are grateful to the laboratory staff for their collaboration. The authors are grateful to SIKA S.A for supplying the FRP material and to the Technological Institute of Aragon (ITAINNOVA) for their collaboration in the numerical model based on the finite element method (FEM).Ministerio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/259445reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2016-80310-Phttp://dx.doi.org/10.3989/mc.2021.11521Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2594452026-05-22T06:33:51Z
dc.title.none.fl_str_mv Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
title Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
spellingShingle Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
Gutiérrez, José Pedro
Concrete
Composite materials
Compressive strength
Confinement
Structural strengthening
title_short Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
title_full Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
title_fullStr Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
title_full_unstemmed Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
title_sort Experimental analysis and design strength models adopted by international guides for FRP-confined concrete columns subjected to axial compression
dc.creator.none.fl_str_mv Gutiérrez, José Pedro
Martínez de Mingo, Sonia
Diego, Ana de
Castro, Viviana J.
Echevarría, Luis
author Gutiérrez, José Pedro
author_facet Gutiérrez, José Pedro
Martínez de Mingo, Sonia
Diego, Ana de
Castro, Viviana J.
Echevarría, Luis
author_role author
author2 Martínez de Mingo, Sonia
Diego, Ana de
Castro, Viviana J.
Echevarría, Luis
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Concrete
Composite materials
Compressive strength
Confinement
Structural strengthening
topic Concrete
Composite materials
Compressive strength
Confinement
Structural strengthening
description Carbon fiber jacketing is an efficient technique for increasing the strength and strain capacity of concrete circular and square section columns subjected to axial load, although confinement efficiency decreases for rectangular cross-section members. The research project BIA 2016-80310-P includes an experimental program on intermediate-size plain concrete specimens strengthened with carbon fiber jackets, mostly with square and rectangular cross-sections. The results, alongside others with similar characteristics from two databases published, are compared to predictions of four international guides. The incidence of the key parameters in the experimental results is analyzed, such as the aspect ratio of the section, the effective strain in FRP jacket attained at failure or the rounded corner radius. As a result, two efficiency strain factors are proposed, one for circular and another for rectangular specimens. The predictions contained in certain guides, based on a simple linear design-model, are improved by using the proposed efficiency strain factor for rectangular sections.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/259445
url http://hdl.handle.net/10261/259445
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2016-80310-P
http://dx.doi.org/10.3989/mc.2021.11521
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869416301764542464
score 15,812429

Similares en LA Referencia