Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups

Detalhes bibliográficos
Autor(a) principal: Breveglieri, M.
Data de Publicação: 2015
Outros Autores: Aprile, A., Barros, Joaquim A. O.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/38363
Resumo: The Embedded Through-Section (ETS) technique is a promising technique for the shear strengthening of existing (RC) elements. According to this technique, holes are drilled through the beam section, and bars of steel or FRP material are introduced into these holes and bonded to the concrete with adhesive materials. An experimental program was carried out with RC T-cross section beams strengthened in shear using the ETS steel bars and ETS CFRP rods. The research is focused on the evaluation of the ETS efficiency on beams with different percentage of existing internal transverse reinforcement (ρsw=0.0%, ρsw=0.1% and ρsw=0.17%). The effectiveness of different ETS strengthening configurations was also investigated. The good bond between the strengthening ETS bars and the surrounding concrete allowed the yield initiation of the ETS steel bars and the attainment of high tensile strains in the ETS CFPR rods, leading to significant increase of shear capacity, whose level was strongly influenced by the inclination of the ETS bars and the percentage of internal transverse reinforcement.
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spelling Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrupsReinforced Concrete BeamsShear strengtheningETS techniqueEmbedded Through-Section TechniqueETS steel barsETS CFRP barsExisting stirrupsEngenharia e Tecnologia::Engenharia CivilScience & TechnologyThe Embedded Through-Section (ETS) technique is a promising technique for the shear strengthening of existing (RC) elements. According to this technique, holes are drilled through the beam section, and bars of steel or FRP material are introduced into these holes and bonded to the concrete with adhesive materials. An experimental program was carried out with RC T-cross section beams strengthened in shear using the ETS steel bars and ETS CFRP rods. The research is focused on the evaluation of the ETS efficiency on beams with different percentage of existing internal transverse reinforcement (ρsw=0.0%, ρsw=0.1% and ρsw=0.17%). The effectiveness of different ETS strengthening configurations was also investigated. The good bond between the strengthening ETS bars and the surrounding concrete allowed the yield initiation of the ETS steel bars and the attainment of high tensile strains in the ETS CFPR rods, leading to significant increase of shear capacity, whose level was strongly influenced by the inclination of the ETS bars and the percentage of internal transverse reinforcement.The authors wish to acknowledge Elletipi S.r.l. (Ferrara, Italy) for supporting the experimental program, Interbau S.r.l. (Milano, Italy) for applying the ETS strengthening system, BASF company Italy for providing the CFRP rods and the ENDIF Geomatic Group (University of Ferrara, Italy) for monitoring the experimental program, as well as the support provided by FCT (PTDC/ECM/114511/2009). The authors wish also acknowledge the Engineering Department of the University of Ferrara for its financial support.ElsevierUniversidade do MinhoBreveglieri, M.Aprile, A.Barros, Joaquim A. O.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/38363engBreveglieri, M., Aprile, A., & Barros, J. A. O. (2015). Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups. Composite Structures, 126, 101-113. doi: 10.1016/j.compstruct.2015.02.0250263-822310.1016/j.compstruct.2015.02.025info: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:RCAAP2023-07-21T12:38:51Zoai:repositorium.sdum.uminho.pt:1822/38363Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:35:22.937784Repositório 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 Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
title Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
spellingShingle Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
Breveglieri, M.
Reinforced Concrete Beams
Shear strengthening
ETS technique
Embedded Through-Section Technique
ETS steel bars
ETS CFRP bars
Existing stirrups
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
title_short Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
title_full Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
title_fullStr Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
title_full_unstemmed Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
title_sort Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups
author Breveglieri, M.
author_facet Breveglieri, M.
Aprile, A.
Barros, Joaquim A. O.
author_role author
author2 Aprile, A.
Barros, Joaquim A. O.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Breveglieri, M.
Aprile, A.
Barros, Joaquim A. O.
dc.subject.por.fl_str_mv Reinforced Concrete Beams
Shear strengthening
ETS technique
Embedded Through-Section Technique
ETS steel bars
ETS CFRP bars
Existing stirrups
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
topic Reinforced Concrete Beams
Shear strengthening
ETS technique
Embedded Through-Section Technique
ETS steel bars
ETS CFRP bars
Existing stirrups
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
description The Embedded Through-Section (ETS) technique is a promising technique for the shear strengthening of existing (RC) elements. According to this technique, holes are drilled through the beam section, and bars of steel or FRP material are introduced into these holes and bonded to the concrete with adhesive materials. An experimental program was carried out with RC T-cross section beams strengthened in shear using the ETS steel bars and ETS CFRP rods. The research is focused on the evaluation of the ETS efficiency on beams with different percentage of existing internal transverse reinforcement (ρsw=0.0%, ρsw=0.1% and ρsw=0.17%). The effectiveness of different ETS strengthening configurations was also investigated. The good bond between the strengthening ETS bars and the surrounding concrete allowed the yield initiation of the ETS steel bars and the attainment of high tensile strains in the ETS CFPR rods, leading to significant increase of shear capacity, whose level was strongly influenced by the inclination of the ETS bars and the percentage of internal transverse reinforcement.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/38363
url http://hdl.handle.net/1822/38363
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Breveglieri, M., Aprile, A., & Barros, J. A. O. (2015). Embedded Through-Section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrups. Composite Structures, 126, 101-113. doi: 10.1016/j.compstruct.2015.02.025
0263-8223
10.1016/j.compstruct.2015.02.025
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 Elsevier
publisher.none.fl_str_mv Elsevier
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
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