Rational use of HPFRC in slab

Detalhes bibliográficos
Autor(a) principal: Ramos, António
Data de Publicação: 2022
Outros Autores: Isufi, Brisid, Marreiros, Rui, Bolešová, Mária, Gajdošová, Katarina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/145842
Resumo: This work received support from Fundação para a Ciência e Tecnologia – Ministério da Ciência, Tecnologia e Ensino Superior through project PTDC/ECI-EST/ 30511/2017. Rafael Sanabria Díaz, Peyman Ghaderi and Bruno Moniz are greatly acknowledged for their help in the laboratory. Publisher Copyright: © 2022 The Authors
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spelling Rational use of HPFRC in slabcolumn connections under reversed horizontal cyclic loadingFiber reinforced concreteFibre reinforced concreteFlat plateFlat slabFRCHigh-performance concretePunching shearReversed cyclic loadingSeismicUHPFRCCivil and Structural EngineeringThis work received support from Fundação para a Ciência e Tecnologia – Ministério da Ciência, Tecnologia e Ensino Superior through project PTDC/ECI-EST/ 30511/2017. Rafael Sanabria Díaz, Peyman Ghaderi and Bruno Moniz are greatly acknowledged for their help in the laboratory. Publisher Copyright: © 2022 The AuthorsSlab – column connections that are subjected to combined gravity and horizontal loading during an earthquake are prone to premature failure due to punching shear. Traditional solutions to avoid punching failure and to increase the displacement capacity of this type of connection include using stirrups and double-headed studs as shear reinforcement. The use of High-Performance Fiber Reinforced Concrete (HPFRC) in a small region of the slab around the column as a substitute for traditional solutions is investigated in this paper, because this material has the potential to reduce labor and material costs. To fulfill this objective, four slab specimens with a thickness of 150 mm were tested under combined gravity and reversed horizontal drifts. The results are discussed in detail. The experimental variables considered were the top flexural reinforcement ratio, the size of the HPFRC zone and the intensity of the gravity load. Previously published tests that serve as reference specimens are used to compare the results. The behavior of the specimens with HPFRC was substantially improved compared to the reference specimens in terms of drift capacity: from only 1.0% drift to above 5.5%, even though a very small quantity of HPFRC was used, extended up to only 1.5 times the effective depth of the slab from the face of the column. Specimens with HPFRC also behaved better when compared to specimens with High-Strength Concrete (HSC). Side effects of using HPFRC in the slab in the vicinity of the column include an increase of the unbalanced moment transfer capacity and lateral stiffness, as well as a reduction of the deflections of the slab.CERIS - Polo NOVADEC - Departamento de Engenharia CivilRUNRamos, AntónioIsufi, BrisidMarreiros, RuiBolešová, MáriaGajdošová, Katarina2022-11-28T22:13:33Z2022-11-012022-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article16application/pdfhttp://hdl.handle.net/10362/145842eng0141-0296PURE: 46516523https://doi.org/10.1016/j.engstruct.2022.114903info: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:RCAAP2024-03-11T05:26:30Zoai:run.unl.pt:10362/145842Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:52:17.397306Repositório 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 Rational use of HPFRC in slab
column connections under reversed horizontal cyclic loading
title Rational use of HPFRC in slab
spellingShingle Rational use of HPFRC in slab
Ramos, António
Fiber reinforced concrete
Fibre reinforced concrete
Flat plate
Flat slab
FRC
High-performance concrete
Punching shear
Reversed cyclic loading
Seismic
UHPFRC
Civil and Structural Engineering
title_short Rational use of HPFRC in slab
title_full Rational use of HPFRC in slab
title_fullStr Rational use of HPFRC in slab
title_full_unstemmed Rational use of HPFRC in slab
title_sort Rational use of HPFRC in slab
author Ramos, António
author_facet Ramos, António
Isufi, Brisid
Marreiros, Rui
Bolešová, Mária
Gajdošová, Katarina
author_role author
author2 Isufi, Brisid
Marreiros, Rui
Bolešová, Mária
Gajdošová, Katarina
author2_role author
author
author
author
dc.contributor.none.fl_str_mv CERIS - Polo NOVA
DEC - Departamento de Engenharia Civil
RUN
dc.contributor.author.fl_str_mv Ramos, António
Isufi, Brisid
Marreiros, Rui
Bolešová, Mária
Gajdošová, Katarina
dc.subject.por.fl_str_mv Fiber reinforced concrete
Fibre reinforced concrete
Flat plate
Flat slab
FRC
High-performance concrete
Punching shear
Reversed cyclic loading
Seismic
UHPFRC
Civil and Structural Engineering
topic Fiber reinforced concrete
Fibre reinforced concrete
Flat plate
Flat slab
FRC
High-performance concrete
Punching shear
Reversed cyclic loading
Seismic
UHPFRC
Civil and Structural Engineering
description This work received support from Fundação para a Ciência e Tecnologia – Ministério da Ciência, Tecnologia e Ensino Superior through project PTDC/ECI-EST/ 30511/2017. Rafael Sanabria Díaz, Peyman Ghaderi and Bruno Moniz are greatly acknowledged for their help in the laboratory. Publisher Copyright: © 2022 The Authors
publishDate 2022
dc.date.none.fl_str_mv 2022-11-28T22:13:33Z
2022-11-01
2022-11-01T00:00:00Z
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/10362/145842
url http://hdl.handle.net/10362/145842
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0141-0296
PURE: 46516523
https://doi.org/10.1016/j.engstruct.2022.114903
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eu_rights_str_mv openAccess
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