In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels

Detalhes bibliográficos
Autor(a) principal: Sousa, Christoph Fernandes
Data de Publicação: 2022
Outros Autores: Barros, Joaquim A. O., Correia, João R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/81891
Resumo: This paper presents an experimental study about the development of a sustainable and multifunctional composite sandwich panel for the rehabilitation of reinforced concrete (RC) buildings from the 1960s to the mid-1980s. For this purpose, the cyclic behaviour of representative RC frames was assessed by performing in-plane quasi-static cyclic tests on three different specimens: (i) a bare RC frame (individual behaviour of the frame); (ii) an RC frame with masonry infill wall (representative of target buildings); and (iii) an RC frame strengthened with an innovative sandwich panel formed by outer wythes in recycled steel fibre reinforced micro-concrete and polystyrene core layer. The results show that, in comparison with the traditional masonry infill wall solution, the proposed rehabilitation solution significantly improved the cyclic performance of the RC frame, reaching higher levels of load carrying capacity (395% vs. 349% increase) and energy dissipation (700% vs. 524% increase). Moreover, the sandwich panel has maintained its structural integrity with low level of damage in its internal load-bearing layer for high values of lateral drift (up to 2.1%).
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spelling In-plane cyclic behaviour of RC frames strengthened with composite sandwich panelsRehabilitationRC framesBuilding facadesSandwich panelPrecast concreteRecycled steel fibresCyclic testsEngenharia e Tecnologia::Engenharia CivilScience & TechnologyThis paper presents an experimental study about the development of a sustainable and multifunctional composite sandwich panel for the rehabilitation of reinforced concrete (RC) buildings from the 1960s to the mid-1980s. For this purpose, the cyclic behaviour of representative RC frames was assessed by performing in-plane quasi-static cyclic tests on three different specimens: (i) a bare RC frame (individual behaviour of the frame); (ii) an RC frame with masonry infill wall (representative of target buildings); and (iii) an RC frame strengthened with an innovative sandwich panel formed by outer wythes in recycled steel fibre reinforced micro-concrete and polystyrene core layer. The results show that, in comparison with the traditional masonry infill wall solution, the proposed rehabilitation solution significantly improved the cyclic performance of the RC frame, reaching higher levels of load carrying capacity (395% vs. 349% increase) and energy dissipation (700% vs. 524% increase). Moreover, the sandwich panel has maintained its structural integrity with low level of damage in its internal load-bearing layer for high values of lateral drift (up to 2.1%).The first author wishes to acknowledge the financial support provided by the Portuguese Foundation for Science and Technology (FCT) and the Eco-Construction and Rehabilitation (EcoCoRe) Doctoral Program through the research grant PD/BD/52657/2014. The authors would like to thank the collaboration and support of the following companies for supplying/producing different components: (i) Twincon (RSF); (ii) Tecnipor (RC-frames); (iii) CiviTest (sandwich panel prototype); (iv) BVT–Rausch and PreConTech (functional GFRP connectors); (v) Sch¨ock Bauteile GmbH (structural GFRP connectors); (vi) Hilti (mechanical and adhesive anchoring systems); and (vii) Danosa/Eurofoam (extruded polystyrene plates). The authors also wish to thank the Structural Laboratory from University of Minho.ElsevierUniversidade do MinhoSousa, Christoph FernandesBarros, Joaquim A. O.Correia, João R.20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/81891eng0141-029610.1016/j.engstruct.2021.113529https://www.sciencedirect.com/science/article/pii/S0141029621016254?via%3Dihubinfo: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:RCAAP2023-07-21T12:23:06Zoai:repositorium.sdum.uminho.pt:1822/81891Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:16:44.474910Repositório 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 In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
title In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
spellingShingle In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
Sousa, Christoph Fernandes
Rehabilitation
RC frames
Building facades
Sandwich panel
Precast concrete
Recycled steel fibres
Cyclic tests
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
title_short In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
title_full In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
title_fullStr In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
title_full_unstemmed In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
title_sort In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels
author Sousa, Christoph Fernandes
author_facet Sousa, Christoph Fernandes
Barros, Joaquim A. O.
Correia, João R.
author_role author
author2 Barros, Joaquim A. O.
Correia, João R.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Sousa, Christoph Fernandes
Barros, Joaquim A. O.
Correia, João R.
dc.subject.por.fl_str_mv Rehabilitation
RC frames
Building facades
Sandwich panel
Precast concrete
Recycled steel fibres
Cyclic tests
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
topic Rehabilitation
RC frames
Building facades
Sandwich panel
Precast concrete
Recycled steel fibres
Cyclic tests
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
description This paper presents an experimental study about the development of a sustainable and multifunctional composite sandwich panel for the rehabilitation of reinforced concrete (RC) buildings from the 1960s to the mid-1980s. For this purpose, the cyclic behaviour of representative RC frames was assessed by performing in-plane quasi-static cyclic tests on three different specimens: (i) a bare RC frame (individual behaviour of the frame); (ii) an RC frame with masonry infill wall (representative of target buildings); and (iii) an RC frame strengthened with an innovative sandwich panel formed by outer wythes in recycled steel fibre reinforced micro-concrete and polystyrene core layer. The results show that, in comparison with the traditional masonry infill wall solution, the proposed rehabilitation solution significantly improved the cyclic performance of the RC frame, reaching higher levels of load carrying capacity (395% vs. 349% increase) and energy dissipation (700% vs. 524% increase). Moreover, the sandwich panel has maintained its structural integrity with low level of damage in its internal load-bearing layer for high values of lateral drift (up to 2.1%).
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-01-01T00:00:00Z
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 https://hdl.handle.net/1822/81891
url https://hdl.handle.net/1822/81891
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0141-0296
10.1016/j.engstruct.2021.113529
https://www.sciencedirect.com/science/article/pii/S0141029621016254?via%3Dihub
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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