Shear in sand-lightweight and conventional high strength concrete through the push-off test

Detalhes bibliográficos
Autor(a) principal: Figueiredo,Patricia da Silva Pereira
Data de Publicação: 2021
Outros Autores: Soares,Thais Amaral, Garcia,Sergio Luis González, Pereira,Allonso Curty da Silva, Trindade,Juliana Corrêa
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=S1983-41952021000300208
Resumo: abstract: Shear design models in reinforced concrete structures depend on stress transfer through cracks. Such mechanism is influenced by the displacement and roughness of the opposite faces generated during cracking. Shear is reduced when an aggregate particle is fractured leading to a smoother crack as found in lightweight and high strength concrete. This study evaluated the ultimate shear strength of sand-lightweight and conventional high strength concrete as well as the differences in their behavior. Results from Pereira and Soares with 29 push-off test specimens were used. Transverse clamping stress ranged from 4.79 to 12.71 MPa while fcm was 30 and 50 MPa. The experimental results showed significant differences in the concrete studied. A tri-linear model was proposed to calculate the ultimate shear strength. An overall mean value of τu, exp/τu, cal was 0.96.
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spelling Shear in sand-lightweight and conventional high strength concrete through the push-off testshear-frictionlightweight concretehigh-strength concreteabstract: Shear design models in reinforced concrete structures depend on stress transfer through cracks. Such mechanism is influenced by the displacement and roughness of the opposite faces generated during cracking. Shear is reduced when an aggregate particle is fractured leading to a smoother crack as found in lightweight and high strength concrete. This study evaluated the ultimate shear strength of sand-lightweight and conventional high strength concrete as well as the differences in their behavior. Results from Pereira and Soares with 29 push-off test specimens were used. Transverse clamping stress ranged from 4.79 to 12.71 MPa while fcm was 30 and 50 MPa. The experimental results showed significant differences in the concrete studied. A tri-linear model was proposed to calculate the ultimate shear strength. An overall mean value of τu, exp/τu, cal was 0.96.IBRACON - Instituto Brasileiro do Concreto2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000300208Revista IBRACON de Estruturas e Materiais v.14 n.3 2021reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952021000300007info:eu-repo/semantics/openAccessFigueiredo,Patricia da Silva PereiraSoares,Thais AmaralGarcia,Sergio Luis GonzálezPereira,Allonso Curty da SilvaTrindade,Juliana Corrêaeng2021-05-18T00:00:00Zoai:scielo:S1983-41952021000300208Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2021-05-18T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Shear in sand-lightweight and conventional high strength concrete through the push-off test
title Shear in sand-lightweight and conventional high strength concrete through the push-off test
spellingShingle Shear in sand-lightweight and conventional high strength concrete through the push-off test
Figueiredo,Patricia da Silva Pereira
shear-friction
lightweight concrete
high-strength concrete
title_short Shear in sand-lightweight and conventional high strength concrete through the push-off test
title_full Shear in sand-lightweight and conventional high strength concrete through the push-off test
title_fullStr Shear in sand-lightweight and conventional high strength concrete through the push-off test
title_full_unstemmed Shear in sand-lightweight and conventional high strength concrete through the push-off test
title_sort Shear in sand-lightweight and conventional high strength concrete through the push-off test
author Figueiredo,Patricia da Silva Pereira
author_facet Figueiredo,Patricia da Silva Pereira
Soares,Thais Amaral
Garcia,Sergio Luis González
Pereira,Allonso Curty da Silva
Trindade,Juliana Corrêa
author_role author
author2 Soares,Thais Amaral
Garcia,Sergio Luis González
Pereira,Allonso Curty da Silva
Trindade,Juliana Corrêa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Figueiredo,Patricia da Silva Pereira
Soares,Thais Amaral
Garcia,Sergio Luis González
Pereira,Allonso Curty da Silva
Trindade,Juliana Corrêa
dc.subject.por.fl_str_mv shear-friction
lightweight concrete
high-strength concrete
topic shear-friction
lightweight concrete
high-strength concrete
description abstract: Shear design models in reinforced concrete structures depend on stress transfer through cracks. Such mechanism is influenced by the displacement and roughness of the opposite faces generated during cracking. Shear is reduced when an aggregate particle is fractured leading to a smoother crack as found in lightweight and high strength concrete. This study evaluated the ultimate shear strength of sand-lightweight and conventional high strength concrete as well as the differences in their behavior. Results from Pereira and Soares with 29 push-off test specimens were used. Transverse clamping stress ranged from 4.79 to 12.71 MPa while fcm was 30 and 50 MPa. The experimental results showed significant differences in the concrete studied. A tri-linear model was proposed to calculate the ultimate shear strength. An overall mean value of τu, exp/τu, cal was 0.96.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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=S1983-41952021000300208
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000300208
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952021000300007
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.14 n.3 2021
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
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