Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/346893
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampTrautwein, Leandro Mouta-
dc.typeArtigopt_BR
dc.titleExperimental study of solid RC slabs strengthened on the upper surfacept_BR
dc.title.alternativeAnálise experimental de lajes de CA reforçadas pela face superiorpt_BR
dc.contributor.authorCampos, C. O.-
dc.contributor.authorTrautwein, L. M.-
dc.contributor.authorGomes, R. B.-
dc.contributor.authorMelo, G.-
dc.subjectLajespt_BR
dc.subjectConcreto armadopt_BR
dc.subject.otherlanguageReinforced concretept_BR
dc.subject.otherlanguageSlabspt_BR
dc.description.abstractThe current study presents the results of tests conducted in 5 reinforced concrete slabs (415 cm x 415 cm x 7 cm) in order to experimentally check the possibility of reinforcing their upper surface, as well as to assess the adhesion between the old and the reinforcing concrete layers in the slab. The main variables were the concrete and reinforcement strength deficiencies. Reference slab “L1” was tested until reaching the failure load, whereas the others were tested until reaching certain load limit, reinforced and retested until reaching the failure load. All slabs failed under bending. The strengthening increased the failure load by 30% in slabs reinforced at minimum reinforcement rate when they were compared to similar non-reinforced slabs, regardless of the original concrete strength. None of the tests conducted in the reinforced slabs showed detachments or evidence of adhesion loss between the old and reinforcing concretespt_BR
dc.relation.ispartofRevista IBRACON de Estruturas e Materiaispt_BR
dc.publisher.citySão Paulo, SPpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisherInstituto Brasileiro do Concretopt_BR
dc.date.issued2018-
dc.date.monthofcirculationMar.pt_BR
dc.language.isoengpt_BR
dc.description.volume11pt_BR
dc.description.issuenumber2pt_BR
dc.description.firstpage255pt_BR
dc.description.lastpage278pt_BR
dc.rightsAbertopt_BR
dc.sourceSciELOpt_BR
dc.identifier.eissn1983-4195pt_BR
dc.identifier.doi10.1590/s1983-41952018000200003pt_BR
dc.identifier.urlhttps://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200255pt_BR
dc.date.available2020-08-06T19:35:12Z-
dc.date.accessioned2020-08-06T19:35:12Z-
dc.description.provenanceSubmitted by Cintia Oliveira de Moura (cintiaom@unicamp.br) on 2020-08-06T19:35:12Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-11T14:37:53Z : No. of bitstreams: 1 S1983-41952018000200255.pdf: 2879838 bytes, checksum: deec07a235c864740e326309aabee785 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-08-06T19:35:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2018en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/346893-
dc.contributor.departmentDepartamento de Estruturaspt_BR
dc.contributor.unidadeFaculdade de Engenharia Civil, Arquitetura e Urbanismopt_BR
dc.description.abstractalternativeEste trabalho apresenta os resultados dos ensaios de 5 lajes de concreto armado (415 cm x 415 cm x 7 cm) com o objetivo de se verificar experimentalmente a possibilidade de reforço pela face superior de lajes de concreto armado e também de se avaliar a aderência entre o concreto antigo da laje e a camada do concreto do reforço. As principais variáveis foram as deficiências da resistência do concreto e de armadura. A laje L1, de referência, foi ensaiada até a ruptura e as demais até um limite de carregamento quando foram reforçadas e reensaiadas até a ruptura. Todas as lajes romperam por flexão e nas lajes armadas com uma taxa mínima de armadura, o reforço elevou em até 30% a carga de ruptura em relação a uma laje similar sem reforço, independentemente da resistência original do concreto. Em todos os ensaios das lajes reforçadas não se detectou descolamentos ou evidências de perda de aderência entre o concreto antigo e o concreto do reforçopt_BR
dc.subject.keywordStrengtheningpt_BR
dc.subject.keywordAdherencept_BR
dc.identifier.sourceS1983-41952018000200255pt_BR
dc.creator.orcid0000-0002-4631-9290pt_BR
dc.type.formArtigopt_BR
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