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Hybrid use of HPFRC in slab

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dc.contributor.authorRamos, António Pinho
dc.contributor.authorIsufi, Brisid
dc.contributor.authorMarreiros, Rui
dc.contributor.authorMarchão, Carla
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.institutionCERIS - Polo NOVA
dc.date.accessioned2023-02-03T22:25:15Z
dc.date.available2023-02-03T22:25:15Z
dc.date.issued2022
dc.descriptionFor their help in the laboratory, the authors also acknowledge Rafael Sanabria Díaz, Peyman Ghaderi and Bruno Moniz. Publisher Copyright: © Fédération Internationale du Béton – International Federation for Structural Concrete.
dc.description.abstractPunching shear reinforcement has already proved to be a reliable solution to improve the deformation capacity of flat slab – column connections subjected to seismic actions. Alternative approaches are becoming attractive with the development of materials such as High-Performance Fibre Reinforced Concrete (HPFRC) with better performance in tension and compression compared to conventional concrete. Motivated by the promising results obtained during an experimental campaign on hybrid HPFRC flat slabs under monotonic centred vertical loading, this paper investigates the possibility of using HPFRC to improve the behaviour of flat slabs under lateral loading (such as during earthquakes). Four reversed horizontal cyclic loading tests, under constant gravity loads, are presented. The flexural reinforcement ratio, the extent of HPFRC zone from the face of the column and the gravity load were the experimental variables considered. Results show that HPFRC can be a promising alternative to conventional punching shear reinforcement in slab column connections subjected to seismic actions, leading to increased deformation capacity. Furthermore, the results show that even a small extent of the HPFRC zone (up to 1.5 times from the face of the column) can lead to significant benefits in terms of seismic behaviour of slab – column connections, opening the possibility for an optimization of use of HPFRC.en
dc.description.versionauthorsversion
dc.description.versionpublished
dc.format.extent10
dc.format.extent1502960
dc.identifier.isbn978-294064315-8
dc.identifier.issn2617-4820
dc.identifier.otherPURE: 49571499
dc.identifier.otherPURE UUID: 619ec645-fc64-43d2-b7f6-e4cea8b238b9
dc.identifier.otherScopus: 85143892602
dc.identifier.otherORCID: /0000-0001-9496-4991/work/125981116
dc.identifier.urihttp://hdl.handle.net/10362/148652
dc.identifier.urlhttps://www.scopus.com/pages/publications/85143892602
dc.identifier.urlhttps://www.tekna.no/en/past-events/fib-international-congress-2022-oslo-39796/
dc.language.isoeng
dc.peerreviewedyes
dc.publisherfib. The International Federation for Structural Concrete
dc.relationFunding Information: info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FECI-EST%2F30511%2F2017/PT
dc.subjectcyclic loading
dc.subjectflat plate
dc.subjectflat slab
dc.subjecthigh performance fibre reinforced concrete
dc.subjectHPFRC
dc.subjectpunching
dc.subjectseismic loading
dc.subjectshear
dc.subjectslab – column connection
dc.subjectCivil and Structural Engineering
dc.subjectBuilding and Construction
dc.subjectMaterials Science (miscellaneous)
dc.titleHybrid use of HPFRC in slaben
dc.title.subtitlecolumn connections under cyclic lateral loadingen
dc.typeconference object
degois.publication.firstPage1880
degois.publication.lastPage1889
degois.publication.titleProceedings for the 6th fib International Congress, 2022
degois.publication.title6th fib International Congress on Concrete Innovation for Sustainability, 2022
dspace.entity.typePublication
rcaap.rightsopenAccess

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