Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/1822/38156 |
Resumo: | The effectiveness of a repair strategy, for damaged RC beam–column joints, that combines strain hardening cementitious composite (SHCC) and laminates of carbon fiber reinforced polymers (CFRP laminates) is assessed in the present work. According to this technique, the existing concrete cover in the joint zone of the frame is replaced by a self-compacting SHCC. This thin layer of SHCC is reinforced with CFRP laminates that are bonded into the saw cut grooves. Two full-scale severely damaged interior RC beam–column joints were retrofitted using two different configurations of this technique: (i) applying the strengthening system to only the front and rear faces of the specimen; (ii) jacketing all sides of the elements of the specimen with the strengthening system. The effectiveness of these retrofitting configurations is assessed and compared by evaluating experimentally the hysteretic response, the dissipated energy, the degradation of secant stiffness, the displacement ductility and the failure modes of each repaired specimen, and also using the values of these indicators obtained in the virgin state of the specimens. This comparison revealed that the adopted retrofitting strategies can restore and even enhance the performance of this type of structural elements, mainly when the solution based on four-sided jacketing is used. |
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Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solutionStrain hardening cementitious composite (SHCC)Near surface mounted carbon fiber reinforced polymer (NSM-CFRP)Interior reinforced concrete (RC) beam–column jointRetrofittingCyclic behaviorCarbon Fibre Reinforced Polymer (CFRP)Hybrid Composite Plate (HCP)Engenharia e Tecnologia::Engenharia CivilScience & TechnologyThe effectiveness of a repair strategy, for damaged RC beam–column joints, that combines strain hardening cementitious composite (SHCC) and laminates of carbon fiber reinforced polymers (CFRP laminates) is assessed in the present work. According to this technique, the existing concrete cover in the joint zone of the frame is replaced by a self-compacting SHCC. This thin layer of SHCC is reinforced with CFRP laminates that are bonded into the saw cut grooves. Two full-scale severely damaged interior RC beam–column joints were retrofitted using two different configurations of this technique: (i) applying the strengthening system to only the front and rear faces of the specimen; (ii) jacketing all sides of the elements of the specimen with the strengthening system. The effectiveness of these retrofitting configurations is assessed and compared by evaluating experimentally the hysteretic response, the dissipated energy, the degradation of secant stiffness, the displacement ductility and the failure modes of each repaired specimen, and also using the values of these indicators obtained in the virgin state of the specimens. This comparison revealed that the adopted retrofitting strategies can restore and even enhance the performance of this type of structural elements, mainly when the solution based on four-sided jacketing is used.The study presented in this paper is a part of the research project titled "PrePam-Pre-fabricated thin panels by using advanced materials for structural rehabilitation" with reference number of PTDC/ECM/114511/2009. The first author acknowledges the grant SFRH/BD/65663/2009 provided by FCT. The authors also thank the collaboration of the following material suppliers: SIKA, Dow Chemical Co., ENDESA Compostilla Power Station, S&P, Hilti, and also Artecanter for transportation of the specimens.ElsevierUniversidade do MinhoEsmaeeli, EsmaeelBarros, Joaquim A. O.Sena-Cruz, JoséFasan, LucaLi Prizzi, Fabio RaimondoMelo, JoséVarum, Humberto2015-042015-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/1822/38156engEsmaeeli, E., Barros, J. A., Sena-Cruz, J., Fasan, L., Prizzi, F. R. L., Melo, J., & Varum, H. (2015). Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution. Composite Structures, 122, 456-4670263-822310.1016/j.compstruct.2014.12.012http://www.sciencedirect.com/science/article/pii/S0263822314006680info: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:RCAAP2023-07-21T12:16:22Zoai:repositorium.sdum.uminho.pt:1822/38156Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:08:53.796584Repositório 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 |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
title |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
spellingShingle |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution Esmaeeli, Esmaeel Strain hardening cementitious composite (SHCC) Near surface mounted carbon fiber reinforced polymer (NSM-CFRP) Interior reinforced concrete (RC) beam–column joint Retrofitting Cyclic behavior Carbon Fibre Reinforced Polymer (CFRP) Hybrid Composite Plate (HCP) Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
title_full |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
title_fullStr |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
title_full_unstemmed |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
title_sort |
Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution |
author |
Esmaeeli, Esmaeel |
author_facet |
Esmaeeli, Esmaeel Barros, Joaquim A. O. Sena-Cruz, José Fasan, Luca Li Prizzi, Fabio Raimondo Melo, José Varum, Humberto |
author_role |
author |
author2 |
Barros, Joaquim A. O. Sena-Cruz, José Fasan, Luca Li Prizzi, Fabio Raimondo Melo, José Varum, Humberto |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Esmaeeli, Esmaeel Barros, Joaquim A. O. Sena-Cruz, José Fasan, Luca Li Prizzi, Fabio Raimondo Melo, José Varum, Humberto |
dc.subject.por.fl_str_mv |
Strain hardening cementitious composite (SHCC) Near surface mounted carbon fiber reinforced polymer (NSM-CFRP) Interior reinforced concrete (RC) beam–column joint Retrofitting Cyclic behavior Carbon Fibre Reinforced Polymer (CFRP) Hybrid Composite Plate (HCP) Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Strain hardening cementitious composite (SHCC) Near surface mounted carbon fiber reinforced polymer (NSM-CFRP) Interior reinforced concrete (RC) beam–column joint Retrofitting Cyclic behavior Carbon Fibre Reinforced Polymer (CFRP) Hybrid Composite Plate (HCP) Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
The effectiveness of a repair strategy, for damaged RC beam–column joints, that combines strain hardening cementitious composite (SHCC) and laminates of carbon fiber reinforced polymers (CFRP laminates) is assessed in the present work. According to this technique, the existing concrete cover in the joint zone of the frame is replaced by a self-compacting SHCC. This thin layer of SHCC is reinforced with CFRP laminates that are bonded into the saw cut grooves. Two full-scale severely damaged interior RC beam–column joints were retrofitted using two different configurations of this technique: (i) applying the strengthening system to only the front and rear faces of the specimen; (ii) jacketing all sides of the elements of the specimen with the strengthening system. The effectiveness of these retrofitting configurations is assessed and compared by evaluating experimentally the hysteretic response, the dissipated energy, the degradation of secant stiffness, the displacement ductility and the failure modes of each repaired specimen, and also using the values of these indicators obtained in the virgin state of the specimens. This comparison revealed that the adopted retrofitting strategies can restore and even enhance the performance of this type of structural elements, mainly when the solution based on four-sided jacketing is used. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-04 2015-04-01T00:00:00Z |
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/1822/38156 |
url |
http://hdl.handle.net/1822/38156 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Esmaeeli, E., Barros, J. A., Sena-Cruz, J., Fasan, L., Prizzi, F. R. L., Melo, J., & Varum, H. (2015). Retrofitting of interior RC beam–column joints using CFRP strengthened SHCC: Cast-in-place solution. Composite Structures, 122, 456-467 0263-8223 10.1016/j.compstruct.2014.12.012 http://www.sciencedirect.com/science/article/pii/S0263822314006680 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf 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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132512893534208 |