Shear strengthening of damaged reinforced concrete beams with hybrid composite plates
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/48232 |
Resumo: | This paper aims to evaluate experimentally the potentialities of Hybrid Composite Plates (HCPs) technique for the shear strengthening and repairing of reinforced concrete (RC) beams. HCP is a thin plate of Strain Hardening Cementitious Composite (SHCC) reinforced with Carbon Fiber Reinforced Polymer (CFRP) laminates. For this purpose, an experimental program composed of four Rectangular and five T-cross section beams was executed to assess the strengthening efficiency of HCPs technique. There were two control beams without any type of shear reinforcement, and seven beams strengthened with HCPs. The HCPs were applied to the lateral faces of the beams by using a combination of epoxy adhesive and mechanical anchors. The bolts were applied with a certain torque in order to increase the concrete confinement. To have a better understanding of the shear behavior of SHCC material, Iosipescu shear tests were carried out, and the results were used to derive their fracture mode II parameters. To further explore the potentialities of the HCPs technique for the shear strengthening, the experimental tests were simulated numerically by a FEM-based computer program considering the material properties obtained experimentally. After demonstration of the good predictive performance of the numerical model, a parametric study was executed to investigate the influence of some parameters on the load carrying capacity of the strengthened beams, namely: i) Use a mortar instead of the SHCC; ii) application of different applied torque level to the mechanical anchors; iii) different bond condition between HCPs and concrete substrate. |
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Shear strengthening of damaged reinforced concrete beams with hybrid composite platesStrain Hardening Cementitious CompositesNear Surface MountedCFRP laminatesShear StrengtheningIosipescu Shear TestFinite Element Methodlosipescu shear testEngenharia e Tecnologia::Engenharia CivilScience & TechnologyThis paper aims to evaluate experimentally the potentialities of Hybrid Composite Plates (HCPs) technique for the shear strengthening and repairing of reinforced concrete (RC) beams. HCP is a thin plate of Strain Hardening Cementitious Composite (SHCC) reinforced with Carbon Fiber Reinforced Polymer (CFRP) laminates. For this purpose, an experimental program composed of four Rectangular and five T-cross section beams was executed to assess the strengthening efficiency of HCPs technique. There were two control beams without any type of shear reinforcement, and seven beams strengthened with HCPs. The HCPs were applied to the lateral faces of the beams by using a combination of epoxy adhesive and mechanical anchors. The bolts were applied with a certain torque in order to increase the concrete confinement. To have a better understanding of the shear behavior of SHCC material, Iosipescu shear tests were carried out, and the results were used to derive their fracture mode II parameters. To further explore the potentialities of the HCPs technique for the shear strengthening, the experimental tests were simulated numerically by a FEM-based computer program considering the material properties obtained experimentally. After demonstration of the good predictive performance of the numerical model, a parametric study was executed to investigate the influence of some parameters on the load carrying capacity of the strengthened beams, namely: i) Use a mortar instead of the SHCC; ii) application of different applied torque level to the mechanical anchors; iii) different bond condition between HCPs and concrete substrate.Clever Reinforcement Iberica for providing the CFRP laminates and epoxy, Sika for the sand and adhesive, Grace for the superplasticizers, Dow Chemical Co. for viscous modifying agents, ENDESA Compostilla power station for the fly ash, and Casais for assisting in the execution of the beams. FCTinfo:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoBaghi, HadiBarros, Joaquim A. O.Rezazadeh, Mohammadali2017-102017-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/48232engBaghi, H., Barros, J. A., & Rezazadeh, M. (2017). Shear strengthening of damaged reinforced concrete beams with Hybrid Composite Plates. Composite Structures, 178, 353-3710263-822310.1016/j.compstruct.2017.07.039https://www.sciencedirect.com/science/article/pii/S0263822316315951info: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:RCAAP2023-07-21T12:13:17Zoai:repositorium.sdum.uminho.pt:1822/48232Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:05:20.768297Repositório 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 damaged reinforced concrete beams with hybrid composite plates |
title |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
spellingShingle |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates Baghi, Hadi Strain Hardening Cementitious Composites Near Surface Mounted CFRP laminates Shear Strengthening Iosipescu Shear Test Finite Element Method losipescu shear test Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
title_full |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
title_fullStr |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
title_full_unstemmed |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
title_sort |
Shear strengthening of damaged reinforced concrete beams with hybrid composite plates |
author |
Baghi, Hadi |
author_facet |
Baghi, Hadi Barros, Joaquim A. O. Rezazadeh, Mohammadali |
author_role |
author |
author2 |
Barros, Joaquim A. O. Rezazadeh, Mohammadali |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Baghi, Hadi Barros, Joaquim A. O. Rezazadeh, Mohammadali |
dc.subject.por.fl_str_mv |
Strain Hardening Cementitious Composites Near Surface Mounted CFRP laminates Shear Strengthening Iosipescu Shear Test Finite Element Method losipescu shear test Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Strain Hardening Cementitious Composites Near Surface Mounted CFRP laminates Shear Strengthening Iosipescu Shear Test Finite Element Method losipescu shear test Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
This paper aims to evaluate experimentally the potentialities of Hybrid Composite Plates (HCPs) technique for the shear strengthening and repairing of reinforced concrete (RC) beams. HCP is a thin plate of Strain Hardening Cementitious Composite (SHCC) reinforced with Carbon Fiber Reinforced Polymer (CFRP) laminates. For this purpose, an experimental program composed of four Rectangular and five T-cross section beams was executed to assess the strengthening efficiency of HCPs technique. There were two control beams without any type of shear reinforcement, and seven beams strengthened with HCPs. The HCPs were applied to the lateral faces of the beams by using a combination of epoxy adhesive and mechanical anchors. The bolts were applied with a certain torque in order to increase the concrete confinement. To have a better understanding of the shear behavior of SHCC material, Iosipescu shear tests were carried out, and the results were used to derive their fracture mode II parameters. To further explore the potentialities of the HCPs technique for the shear strengthening, the experimental tests were simulated numerically by a FEM-based computer program considering the material properties obtained experimentally. After demonstration of the good predictive performance of the numerical model, a parametric study was executed to investigate the influence of some parameters on the load carrying capacity of the strengthened beams, namely: i) Use a mortar instead of the SHCC; ii) application of different applied torque level to the mechanical anchors; iii) different bond condition between HCPs and concrete substrate. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10 2017-10-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/48232 |
url |
https://hdl.handle.net/1822/48232 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Baghi, H., Barros, J. A., & Rezazadeh, M. (2017). Shear strengthening of damaged reinforced concrete beams with Hybrid Composite Plates. Composite Structures, 178, 353-371 0263-8223 10.1016/j.compstruct.2017.07.039 https://www.sciencedirect.com/science/article/pii/S0263822316315951 |
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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1799132465267212288 |