Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252020000600509 |
Resumo: | Abstract Intermediate crack (IC) debonding failure is one of the common bending failure forms of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams. In this paper, a new prediction model for IC debonding in FRP-strengthened RC beams is proposed based on fracture mechanics and cohesive zone model (CZM), which takes into account the coupling effect of many parameters and has the advantages of high precision and simple expression. The nonlinear behavior of FRP-strengthened RC beams and the influence of flexural cracks are reasonably considered in this model, whereas all existing analytical models based on the CZM neglect this effects. To verify the accuracy of this model, we established a database containing 248 test data from the existing literature. By comparing the differences between the predicted and experimental results, we analyzed the causes of the error and established a semiempirical model. To test the reliability of the model, it is evaluated using the database constructed in this paper together with four representative strength models. The results show that the semiempirical model has a high accuracy. |
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Latin American journal of solids and structures (Online) |
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Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone modelIC debondingCohesive zone modelFiber-reinforced polymerStrengtheningReinforced concrete beamAbstract Intermediate crack (IC) debonding failure is one of the common bending failure forms of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams. In this paper, a new prediction model for IC debonding in FRP-strengthened RC beams is proposed based on fracture mechanics and cohesive zone model (CZM), which takes into account the coupling effect of many parameters and has the advantages of high precision and simple expression. The nonlinear behavior of FRP-strengthened RC beams and the influence of flexural cracks are reasonably considered in this model, whereas all existing analytical models based on the CZM neglect this effects. To verify the accuracy of this model, we established a database containing 248 test data from the existing literature. By comparing the differences between the predicted and experimental results, we analyzed the causes of the error and established a semiempirical model. To test the reliability of the model, it is evaluated using the database constructed in this paper together with four representative strength models. The results show that the semiempirical model has a high accuracy.Associação Brasileira de Ciências Mecânicas2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252020000600509Latin American Journal of Solids and Structures v.17 n.6 2020reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256208info:eu-repo/semantics/openAccessZhang,JingchunGuo,RongLi,ShengyueZhao,Shaoweieng2020-09-15T00:00:00Zoai:scielo:S1679-78252020000600509Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2020-09-15T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
title |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
spellingShingle |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model Zhang,Jingchun IC debonding Cohesive zone model Fiber-reinforced polymer Strengthening Reinforced concrete beam |
title_short |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
title_full |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
title_fullStr |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
title_full_unstemmed |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
title_sort |
Prediction of the IC debonding failure of FRP-strengthened RC beams based on the cohesive zone model |
author |
Zhang,Jingchun |
author_facet |
Zhang,Jingchun Guo,Rong Li,Shengyue Zhao,Shaowei |
author_role |
author |
author2 |
Guo,Rong Li,Shengyue Zhao,Shaowei |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zhang,Jingchun Guo,Rong Li,Shengyue Zhao,Shaowei |
dc.subject.por.fl_str_mv |
IC debonding Cohesive zone model Fiber-reinforced polymer Strengthening Reinforced concrete beam |
topic |
IC debonding Cohesive zone model Fiber-reinforced polymer Strengthening Reinforced concrete beam |
description |
Abstract Intermediate crack (IC) debonding failure is one of the common bending failure forms of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams. In this paper, a new prediction model for IC debonding in FRP-strengthened RC beams is proposed based on fracture mechanics and cohesive zone model (CZM), which takes into account the coupling effect of many parameters and has the advantages of high precision and simple expression. The nonlinear behavior of FRP-strengthened RC beams and the influence of flexural cracks are reasonably considered in this model, whereas all existing analytical models based on the CZM neglect this effects. To verify the accuracy of this model, we established a database containing 248 test data from the existing literature. By comparing the differences between the predicted and experimental results, we analyzed the causes of the error and established a semiempirical model. To test the reliability of the model, it is evaluated using the database constructed in this paper together with four representative strength models. The results show that the semiempirical model has a high accuracy. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S1679-78252020000600509 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252020000600509 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78256208 |
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 |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.17 n.6 2020 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302890443276288 |