RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation

Detalhes bibliográficos
Autor(a) principal: Breveglieri, M.
Data de Publicação: 2016
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/1822/43537
Resumo: The Embedded Through-Section (ETS) is a recent strengthening technique that has been developed to retrofit existing reinforced concrete (RC) elements with shear reinforcement deficiencies. This technique is based on the execution of holes drilled through the element cross section, in which steel or fiber reinforced polymer (FRP) bars are inserted and bonded to the surrounding concrete with an epoxy adhesive. An experimental program was carried out with RC T-cross section beams strengthened in shear using steel ETS bars. The influence of the inclination and shear strengthening ratio of ETS on the shear strengthening efficiency was evaluated, as well as the interaction of ETS bars with existing steel stirrups. Two different analytical models are presented in this paper in order to calculate the contribution of ETS to shear resistance. The first model follows an empirical approach (experimental-based approach), while the second model takes into account the physical and mechanical principles of the technique (mechanical-based approach). The predictive performance of both models is assessed by using the experimental results.
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spelling RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulationEmbedded Through-Section techniqueDebondingAnalytical modellingMechanical testingB. DebondingC. Analytical modellingD. Mechanical testingScience & TechnologyThe Embedded Through-Section (ETS) is a recent strengthening technique that has been developed to retrofit existing reinforced concrete (RC) elements with shear reinforcement deficiencies. This technique is based on the execution of holes drilled through the element cross section, in which steel or fiber reinforced polymer (FRP) bars are inserted and bonded to the surrounding concrete with an epoxy adhesive. An experimental program was carried out with RC T-cross section beams strengthened in shear using steel ETS bars. The influence of the inclination and shear strengthening ratio of ETS on the shear strengthening efficiency was evaluated, as well as the interaction of ETS bars with existing steel stirrups. Two different analytical models are presented in this paper in order to calculate the contribution of ETS to shear resistance. The first model follows an empirical approach (experimental-based approach), while the second model takes into account the physical and mechanical principles of the technique (mechanical-based approach). The predictive performance of both models is assessed by using the experimental results.The authors wish to acknowledge the support provided by the CutInov project QREN n. 38780 supported by ADI, and by the Engineering Department of the University of Ferrara.ElsevierUniversidade do MinhoBreveglieri, M.Aprile, A.Barros, Joaquim A. O.2016-032016-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/43537eng1359-836810.1016/j.compositesb.2015.11.023info: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:RCAAP2023-07-21T11:54:20Zoai:repositorium.sdum.uminho.pt:1822/43537Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:43:48.988330Repositório 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 RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
title RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
spellingShingle RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
Breveglieri, M.
Embedded Through-Section technique
Debonding
Analytical modelling
Mechanical testing
B. Debonding
C. Analytical modelling
D. Mechanical testing
Science & Technology
title_short RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
title_full RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
title_fullStr RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
title_full_unstemmed RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
title_sort RC beams strengthened in shear using the Embedded Through-Section technique: experimental results and analytical formulation
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 Embedded Through-Section technique
Debonding
Analytical modelling
Mechanical testing
B. Debonding
C. Analytical modelling
D. Mechanical testing
Science & Technology
topic Embedded Through-Section technique
Debonding
Analytical modelling
Mechanical testing
B. Debonding
C. Analytical modelling
D. Mechanical testing
Science & Technology
description The Embedded Through-Section (ETS) is a recent strengthening technique that has been developed to retrofit existing reinforced concrete (RC) elements with shear reinforcement deficiencies. This technique is based on the execution of holes drilled through the element cross section, in which steel or fiber reinforced polymer (FRP) bars are inserted and bonded to the surrounding concrete with an epoxy adhesive. An experimental program was carried out with RC T-cross section beams strengthened in shear using steel ETS bars. The influence of the inclination and shear strengthening ratio of ETS on the shear strengthening efficiency was evaluated, as well as the interaction of ETS bars with existing steel stirrups. Two different analytical models are presented in this paper in order to calculate the contribution of ETS to shear resistance. The first model follows an empirical approach (experimental-based approach), while the second model takes into account the physical and mechanical principles of the technique (mechanical-based approach). The predictive performance of both models is assessed by using the experimental results.
publishDate 2016
dc.date.none.fl_str_mv 2016-03
2016-03-01T00:00:00Z
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/1822/43537
url http://hdl.handle.net/1822/43537
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1359-8368
10.1016/j.compositesb.2015.11.023
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
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