Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions

Detalhes bibliográficos
Autor(a) principal: Nogueira, Caio Gorla [UNESP]
Data de Publicação: 2023
Outros Autores: Yoshio, Lucas [UNESP], Zacchei, Enrico
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.cscm.2023.e01913
http://hdl.handle.net/11449/246811
Resumo: In this paper the negative effects of the chloride ions attack in reinforced concrete (RC) elements have been studied. For this the vertical and horizontal chloride diffusivity has been treated by several models to identify the more relevant factor affecting the chloride concentration. The pitting corrosion has been treated to define the resistance losses of the shear forces and bending moments. An alternative deterministic/probabilistic procedure, by a direct and systematic new model, has been proposed to estimate the total time of service life for RC elements at the design phase. Several detailing configurations of steel bars in a RC beam, water/cement ratio and level of aggressiveness have been analysed to compare the model predictions. In this sense, this paper should provide useful results for analysts in terms of probability of failure for resistance losses and time of corrosion initiation. The goal is not only to provide practical results but also to evaluate the issue in a more modern risk analysis throughout the proposed prediction model.
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spelling Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictionsChloride diffusionPitting corrosionReliability analysisResistance lossesRisk analysisTotal time of service lifeIn this paper the negative effects of the chloride ions attack in reinforced concrete (RC) elements have been studied. For this the vertical and horizontal chloride diffusivity has been treated by several models to identify the more relevant factor affecting the chloride concentration. The pitting corrosion has been treated to define the resistance losses of the shear forces and bending moments. An alternative deterministic/probabilistic procedure, by a direct and systematic new model, has been proposed to estimate the total time of service life for RC elements at the design phase. Several detailing configurations of steel bars in a RC beam, water/cement ratio and level of aggressiveness have been analysed to compare the model predictions. In this sense, this paper should provide useful results for analysts in terms of probability of failure for resistance losses and time of corrosion initiation. The goal is not only to provide practical results but also to evaluate the issue in a more modern risk analysis throughout the proposed prediction model.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Civil Engineering São Paulo State University (UNESP) 14-01 Eng. Luís Edmundo Carrijo Coube AvenueIteconsUniversity of Coimbra CERISSchool of Civil Engineering São Paulo State University (UNESP) 14-01 Eng. Luís Edmundo Carrijo Coube AvenueUniversidade Estadual Paulista (UNESP)IteconsCERISNogueira, Caio Gorla [UNESP]Yoshio, Lucas [UNESP]Zacchei, Enrico2023-07-29T12:51:08Z2023-07-29T12:51:08Z2023-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cscm.2023.e01913Case Studies in Construction Materials, v. 18.2214-5095http://hdl.handle.net/11449/24681110.1016/j.cscm.2023.e019132-s2.0-85147850779Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCase Studies in Construction Materialsinfo:eu-repo/semantics/openAccess2023-07-29T12:51:08Zoai:repositorio.unesp.br:11449/246811Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:39:53.781655Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
title Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
spellingShingle Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
Nogueira, Caio Gorla [UNESP]
Chloride diffusion
Pitting corrosion
Reliability analysis
Resistance losses
Risk analysis
Total time of service life
title_short Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
title_full Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
title_fullStr Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
title_full_unstemmed Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
title_sort Deterministic and probabilistic approaches for corrosion in RC structures: A direct proposed model to total service life predictions
author Nogueira, Caio Gorla [UNESP]
author_facet Nogueira, Caio Gorla [UNESP]
Yoshio, Lucas [UNESP]
Zacchei, Enrico
author_role author
author2 Yoshio, Lucas [UNESP]
Zacchei, Enrico
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Itecons
CERIS
dc.contributor.author.fl_str_mv Nogueira, Caio Gorla [UNESP]
Yoshio, Lucas [UNESP]
Zacchei, Enrico
dc.subject.por.fl_str_mv Chloride diffusion
Pitting corrosion
Reliability analysis
Resistance losses
Risk analysis
Total time of service life
topic Chloride diffusion
Pitting corrosion
Reliability analysis
Resistance losses
Risk analysis
Total time of service life
description In this paper the negative effects of the chloride ions attack in reinforced concrete (RC) elements have been studied. For this the vertical and horizontal chloride diffusivity has been treated by several models to identify the more relevant factor affecting the chloride concentration. The pitting corrosion has been treated to define the resistance losses of the shear forces and bending moments. An alternative deterministic/probabilistic procedure, by a direct and systematic new model, has been proposed to estimate the total time of service life for RC elements at the design phase. Several detailing configurations of steel bars in a RC beam, water/cement ratio and level of aggressiveness have been analysed to compare the model predictions. In this sense, this paper should provide useful results for analysts in terms of probability of failure for resistance losses and time of corrosion initiation. The goal is not only to provide practical results but also to evaluate the issue in a more modern risk analysis throughout the proposed prediction model.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-29T12:51:08Z
2023-07-29T12:51:08Z
2023-07-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.cscm.2023.e01913
Case Studies in Construction Materials, v. 18.
2214-5095
http://hdl.handle.net/11449/246811
10.1016/j.cscm.2023.e01913
2-s2.0-85147850779
url http://dx.doi.org/10.1016/j.cscm.2023.e01913
http://hdl.handle.net/11449/246811
identifier_str_mv Case Studies in Construction Materials, v. 18.
2214-5095
10.1016/j.cscm.2023.e01913
2-s2.0-85147850779
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Case Studies in Construction Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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