Shear Strengthening of RC beams with near-surface-mounted CFRP laminates

Detalhes bibliográficos
Autor(a) principal: Dias, Salvador J. E.
Data de Publicação: 2005
Outros Autores: Barros, Joaquim A. O.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/5013
Resumo: The efficacies of the Near Surface Mounted (NSM) and Externally Bonded Reinforcing (EBR) techniques for the shear strengthening of rectangular cross section RC beams are compared. Both techniques are based on the use of carbon fiber reinforced polymer (CFRP) materials. The NSM was the most effective technique, and was also the easiest and fastest to apply, and assured the lowest fragile failure modes. The performance of the ACI and fib analytical formulations for the EBR shear strengthening was appraised. In general, the contribution of the CFRP systems predicted by the analytical formulations was larger than the values registered experimentally. The capability of the De Lorenzis formulation of predicting the contribution of the NSM technique for the shear strengthening of RC beams was appraised using bond stress and CFRP effective strain values obtained in pullout bending tests. This formulation provided values 61% lower than the values obtained experimentally.
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spelling Shear Strengthening of RC beams with near-surface-mounted CFRP laminatesCarbon fiber reinforced polymersExternally bonded reinforcingNear surface mountedShear strengtheningThe efficacies of the Near Surface Mounted (NSM) and Externally Bonded Reinforcing (EBR) techniques for the shear strengthening of rectangular cross section RC beams are compared. Both techniques are based on the use of carbon fiber reinforced polymer (CFRP) materials. The NSM was the most effective technique, and was also the easiest and fastest to apply, and assured the lowest fragile failure modes. The performance of the ACI and fib analytical formulations for the EBR shear strengthening was appraised. In general, the contribution of the CFRP systems predicted by the analytical formulations was larger than the values registered experimentally. The capability of the De Lorenzis formulation of predicting the contribution of the NSM technique for the shear strengthening of RC beams was appraised using bond stress and CFRP effective strain values obtained in pullout bending tests. This formulation provided values 61% lower than the values obtained experimentally.American Concrete InstituteUniversidade do MinhoDias, Salvador J. E.Barros, Joaquim A. O.20052005-01-01T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/5013engSHIELD, Carol K. [et al.] ed. lit. – “International Symposium on Fiber Reinforced Polymer (FRP) Reinforcement for Concrete Structures (FRP7RCS), 7, Kansas City, 2005”. Farmington Hills, Mich : American Concrete Institute, 2005. ISBN 0-870-31189-1. [vol.2]. p. 807-824.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T05:14:30Zoai:repositorium.sdum.uminho.pt:1822/5013Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T05:14:30Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
title Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
spellingShingle Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
Dias, Salvador J. E.
Carbon fiber reinforced polymers
Externally bonded reinforcing
Near surface mounted
Shear strengthening
title_short Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
title_full Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
title_fullStr Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
title_full_unstemmed Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
title_sort Shear Strengthening of RC beams with near-surface-mounted CFRP laminates
author Dias, Salvador J. E.
author_facet Dias, Salvador J. E.
Barros, Joaquim A. O.
author_role author
author2 Barros, Joaquim A. O.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Dias, Salvador J. E.
Barros, Joaquim A. O.
dc.subject.por.fl_str_mv Carbon fiber reinforced polymers
Externally bonded reinforcing
Near surface mounted
Shear strengthening
topic Carbon fiber reinforced polymers
Externally bonded reinforcing
Near surface mounted
Shear strengthening
description The efficacies of the Near Surface Mounted (NSM) and Externally Bonded Reinforcing (EBR) techniques for the shear strengthening of rectangular cross section RC beams are compared. Both techniques are based on the use of carbon fiber reinforced polymer (CFRP) materials. The NSM was the most effective technique, and was also the easiest and fastest to apply, and assured the lowest fragile failure modes. The performance of the ACI and fib analytical formulations for the EBR shear strengthening was appraised. In general, the contribution of the CFRP systems predicted by the analytical formulations was larger than the values registered experimentally. The capability of the De Lorenzis formulation of predicting the contribution of the NSM technique for the shear strengthening of RC beams was appraised using bond stress and CFRP effective strain values obtained in pullout bending tests. This formulation provided values 61% lower than the values obtained experimentally.
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/5013
url http://hdl.handle.net/1822/5013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv SHIELD, Carol K. [et al.] ed. lit. – “International Symposium on Fiber Reinforced Polymer (FRP) Reinforcement for Concrete Structures (FRP7RCS), 7, Kansas City, 2005”. Farmington Hills, Mich : American Concrete Institute, 2005. ISBN 0-870-31189-1. [vol.2]. p. 807-824.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Concrete Institute
publisher.none.fl_str_mv American Concrete Institute
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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