Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading

Detalhes bibliográficos
Autor(a) principal: Isufi, Brisid
Data de Publicação: 2022
Outros Autores: Relvas, João Pedro, Marchão, Carla, Ramos, António Pinho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/145833
Resumo: Publisher Copyright: © 2022 Elsevier Ltd
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spelling Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loadingFiber reinforced concreteFlat slabFRCHigh performance concreteHPFRC punching shearCivil and Structural EngineeringPublisher Copyright: © 2022 Elsevier LtdReinforced concrete flat slabs are used worldwide in multi-story buildings. In these slabs, the design is often governed by punching shear and serviceability. The mitigation of these issues during design usually leads to increased raw material consumption and costs. Previous studies have shown that using Fiber Reinforced Concrete (FRC) or High-Strength Concrete (HSC) only at the vicinity of the column, while casting the rest of the slab with Normal Strength Concrete (NSC), can lead to an improved behavior under gravity loads in terms of both serviceability and ultimate capacity. Motivated by these results and the scarcity of previous tests, the present paper experimentally investigates the applicability of High-Performance Fiber Reinforced Concrete (HPFRC) as an alternative material that can be seen as an improvement over FRC and HSC, allowing a combination of ductility and strength. In addition, the HPFRC used in this paper is self-compacting, thus reducing the labor costs associated with concrete vibration. Five 150 mm thick flat slabs were tested under monotonically increasing punching load. The experimental variables were the flexural reinforcement ratio and the extent of the HPFRC zone. One of the specimens was cast only with NSC and served as a reference slab. Results show that the solution was effective for both flexural reinforcement ratios considered. Cracking load, maximum load, as well as the displacement capacity were increased significantly, even for a small extent of HPFRC (1.5 times the effective depth from the face of the column). Regarding the ultimate load capacity, it was observed an increase of 44% to 58% for the specimens with lower reinforcement ratio (0.64%) and between 15%–21% for the specimens with higher reinforcement ratio (0.96%). The results indicate that the use of HPFRC is a promising solution regarding both serviceability and ultimate limit state design of reinforced concrete flat slabs under gravity loading, with obvious advantages in material savings and labor costs.DEC - Departamento de Engenharia CivilCERIS - Polo NOVARUNIsufi, BrisidRelvas, João PedroMarchão, CarlaRamos, António Pinho2022-11-28T22:12:13Z2022-08-012022-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://hdl.handle.net/10362/145833eng0141-0296PURE: 44853470https://doi.org/10.1016/j.engstruct.2022.114471info: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:RCAAP2024-03-11T05:26:29Zoai:run.unl.pt:10362/145833Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:52:16.950030Repositório 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 Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
title Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
spellingShingle Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
Isufi, Brisid
Fiber reinforced concrete
Flat slab
FRC
High performance concrete
HPFRC punching shear
Civil and Structural Engineering
title_short Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
title_full Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
title_fullStr Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
title_full_unstemmed Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
title_sort Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading
author Isufi, Brisid
author_facet Isufi, Brisid
Relvas, João Pedro
Marchão, Carla
Ramos, António Pinho
author_role author
author2 Relvas, João Pedro
Marchão, Carla
Ramos, António Pinho
author2_role author
author
author
dc.contributor.none.fl_str_mv DEC - Departamento de Engenharia Civil
CERIS - Polo NOVA
RUN
dc.contributor.author.fl_str_mv Isufi, Brisid
Relvas, João Pedro
Marchão, Carla
Ramos, António Pinho
dc.subject.por.fl_str_mv Fiber reinforced concrete
Flat slab
FRC
High performance concrete
HPFRC punching shear
Civil and Structural Engineering
topic Fiber reinforced concrete
Flat slab
FRC
High performance concrete
HPFRC punching shear
Civil and Structural Engineering
description Publisher Copyright: © 2022 Elsevier Ltd
publishDate 2022
dc.date.none.fl_str_mv 2022-11-28T22:12:13Z
2022-08-01
2022-08-01T00:00:00Z
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/10362/145833
url http://hdl.handle.net/10362/145833
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0141-0296
PURE: 44853470
https://doi.org/10.1016/j.engstruct.2022.114471
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14
application/pdf
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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