Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/43564 |
Resumo: | This paper aims to evaluate the effectiveness of hybrid composite plates (HCPs) technique for the shear strengthening of the reinforced concrete (RC) T cross-section beams. HCP consists of a thin plate of strain hardening cementitious composite (SHCC) reinforced with carbon fiber reinforced polymer (CFRP) laminates. Two HCPs with different CFRP laminates percentage (ρfw=0.08% and ρfw=0.14%) were adopted for the shear strengthening of the beams. The HCPs were bonded to substrate in two different ways. In the first case, the HCPs were bonded using epoxy adhesive, whereas in the second case they were bonded using epoxy adhesive and fixed by mechanical anchors. The effectiveness of this technique was limited by the tensile strength of the concrete cover of the strengthened beams. Therefore, in the second case, mechanical anchors prevented a premature debonding of the HCPs and a certain concrete confinement was applied in the zone of the beam to be strengthened, resulting in favorable effects in terms of shear strengthening. Advanced finite element method (FEM) based numerical simulation was performed by using a constitutive model, whose predictive performance was demonstrated by simulating the experimental tests carried out. After demonstration of the good predictive performance of the numerical model, a parametric study was carried out to study the influence of the shear reinforcement ratio, and the influence of thickness of the HCPs on the beam’s load carrying capacity. |
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Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP)Hybrid Composite PlateCFRP laminatesShear strengtheningMechanical anchorsNumerical simulationFinite Element MethodCarbon fiber reinforced polymer (CFRP) laminatesScience & TechnologyThis paper aims to evaluate the effectiveness of hybrid composite plates (HCPs) technique for the shear strengthening of the reinforced concrete (RC) T cross-section beams. HCP consists of a thin plate of strain hardening cementitious composite (SHCC) reinforced with carbon fiber reinforced polymer (CFRP) laminates. Two HCPs with different CFRP laminates percentage (ρfw=0.08% and ρfw=0.14%) were adopted for the shear strengthening of the beams. The HCPs were bonded to substrate in two different ways. In the first case, the HCPs were bonded using epoxy adhesive, whereas in the second case they were bonded using epoxy adhesive and fixed by mechanical anchors. The effectiveness of this technique was limited by the tensile strength of the concrete cover of the strengthened beams. Therefore, in the second case, mechanical anchors prevented a premature debonding of the HCPs and a certain concrete confinement was applied in the zone of the beam to be strengthened, resulting in favorable effects in terms of shear strengthening. Advanced finite element method (FEM) based numerical simulation was performed by using a constitutive model, whose predictive performance was demonstrated by simulating the experimental tests carried out. After demonstration of the good predictive performance of the numerical model, a parametric study was carried out to study the influence of the shear reinforcement ratio, and the influence of thickness of the HCPs on the beam’s load carrying capacity.Fundação para a Ciência e a Tecnologia (FCT) - PTDC/ECM/114511/2009American Society of Civil Engineers (ASCE)Universidade do MinhoBaghi, HadiBarros, Joaquim A. O.2016-122016-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/43564eng1090-02681943-561410.1061/(ASCE)CC.1943-5614.0000693info: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:RCAAP2023-07-21T12:44:52Zoai:repositorium.sdum.uminho.pt:1822/43564Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:42:38.599897Repositório 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 reinforced concrete T beams with Hybrid Composite Plate (HCP) |
title |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
spellingShingle |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) Baghi, Hadi Hybrid Composite Plate CFRP laminates Shear strengthening Mechanical anchors Numerical simulation Finite Element Method Carbon fiber reinforced polymer (CFRP) laminates Science & Technology |
title_short |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
title_full |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
title_fullStr |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
title_full_unstemmed |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
title_sort |
Shear strengthening of reinforced concrete T beams with Hybrid Composite Plate (HCP) |
author |
Baghi, Hadi |
author_facet |
Baghi, Hadi 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 |
Baghi, Hadi Barros, Joaquim A. O. |
dc.subject.por.fl_str_mv |
Hybrid Composite Plate CFRP laminates Shear strengthening Mechanical anchors Numerical simulation Finite Element Method Carbon fiber reinforced polymer (CFRP) laminates Science & Technology |
topic |
Hybrid Composite Plate CFRP laminates Shear strengthening Mechanical anchors Numerical simulation Finite Element Method Carbon fiber reinforced polymer (CFRP) laminates Science & Technology |
description |
This paper aims to evaluate the effectiveness of hybrid composite plates (HCPs) technique for the shear strengthening of the reinforced concrete (RC) T cross-section beams. HCP consists of a thin plate of strain hardening cementitious composite (SHCC) reinforced with carbon fiber reinforced polymer (CFRP) laminates. Two HCPs with different CFRP laminates percentage (ρfw=0.08% and ρfw=0.14%) were adopted for the shear strengthening of the beams. The HCPs were bonded to substrate in two different ways. In the first case, the HCPs were bonded using epoxy adhesive, whereas in the second case they were bonded using epoxy adhesive and fixed by mechanical anchors. The effectiveness of this technique was limited by the tensile strength of the concrete cover of the strengthened beams. Therefore, in the second case, mechanical anchors prevented a premature debonding of the HCPs and a certain concrete confinement was applied in the zone of the beam to be strengthened, resulting in favorable effects in terms of shear strengthening. Advanced finite element method (FEM) based numerical simulation was performed by using a constitutive model, whose predictive performance was demonstrated by simulating the experimental tests carried out. After demonstration of the good predictive performance of the numerical model, a parametric study was carried out to study the influence of the shear reinforcement ratio, and the influence of thickness of the HCPs on the beam’s load carrying capacity. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12 2016-12-01T00:00:00Z |
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/1822/43564 |
url |
http://hdl.handle.net/1822/43564 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1090-0268 1943-5614 10.1061/(ASCE)CC.1943-5614.0000693 |
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 Society of Civil Engineers (ASCE) |
publisher.none.fl_str_mv |
American Society of Civil Engineers (ASCE) |
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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1799132979818135552 |