Experimental study of solid RC slabs strengthened on the upper surface

Detalhes bibliográficos
Autor(a) principal: CAMPOS,C. O.
Data de Publicação: 2018
Outros Autores: TRAUTWEIN,L. M., GOMES,R. B., MELO,G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200255
Resumo: Abstract The 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 concretes.
id IBRACON-1_b281c9994f7ca2cb4b5a6a0f77cec7e3
oai_identifier_str oai:scielo:S1983-41952018000200255
network_acronym_str IBRACON-1
network_name_str Revista IBRACON de Estruturas e Materiais
repository_id_str
spelling Experimental study of solid RC slabs strengthened on the upper surfaceslabreinforced concretestrengtheningadherenceAbstract The 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 concretes.IBRACON - Instituto Brasileiro do Concreto2018-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200255Revista IBRACON de Estruturas e Materiais v.11 n.2 2018reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952018000200003info:eu-repo/semantics/openAccessCAMPOS,C. O.TRAUTWEIN,L. M.GOMES,R. B.MELO,G.eng2018-05-24T00:00:00Zoai:scielo:S1983-41952018000200255Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2018-05-24T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Experimental study of solid RC slabs strengthened on the upper surface
title Experimental study of solid RC slabs strengthened on the upper surface
spellingShingle Experimental study of solid RC slabs strengthened on the upper surface
CAMPOS,C. O.
slab
reinforced concrete
strengthening
adherence
title_short Experimental study of solid RC slabs strengthened on the upper surface
title_full Experimental study of solid RC slabs strengthened on the upper surface
title_fullStr Experimental study of solid RC slabs strengthened on the upper surface
title_full_unstemmed Experimental study of solid RC slabs strengthened on the upper surface
title_sort Experimental study of solid RC slabs strengthened on the upper surface
author CAMPOS,C. O.
author_facet CAMPOS,C. O.
TRAUTWEIN,L. M.
GOMES,R. B.
MELO,G.
author_role author
author2 TRAUTWEIN,L. M.
GOMES,R. B.
MELO,G.
author2_role author
author
author
dc.contributor.author.fl_str_mv CAMPOS,C. O.
TRAUTWEIN,L. M.
GOMES,R. B.
MELO,G.
dc.subject.por.fl_str_mv slab
reinforced concrete
strengthening
adherence
topic slab
reinforced concrete
strengthening
adherence
description Abstract The 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 concretes.
publishDate 2018
dc.date.none.fl_str_mv 2018-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200255
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200255
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952018000200003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.11 n.2 2018
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
_version_ 1754193605273059328

Registros relacionados