Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul

Bibliographic Details
Main Author: Avila, Vinicius Heidtmann
Publication Date: 2023
Other Authors: Real, Mauro Vasconcellos
Format: Article
Language: eng
Source: Revista Ciência e Natura (Online)
Download full: https://periodicos.ufsm.br/cienciaenatura/article/view/73885
Summary: This study deals with the evaluation of the reliability index of prestressed girders members of road bridges in relation to the ultimate limit state (ULS) of bending failure. In a wide bibliographic review of scientific works that deal with structural reliability, prestressed structural elements and road bridges, it is observed that few of these deals specifically with the reliability of girders considering the codes NBR 7188 of 2013 and NBR 7187 of 2021. A mechanical model was developed for the calculation of the beam resistant moment and the Monte Carlo Method was used to obtain a data set that represents the statistics of the structure in the ULS. To obtain the reliability index B, the first order reliability method (FORM) was used. The values obtained by the analytical method are validated using the Monte Carlo simulation method. For all evaluated cases, the value of the reliability index was higher than 4.0, which is higher than the minimum required value of 3.5, showing that the national normative recommendations for the design of beam members guarantee a very conservative level of safety.
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spelling Verification of structural reliability of a highway bridge in the state of Rio Grande do SulVerificação da confiabilidade estrutural de uma ponte rodoviária no estado do Rio Grande do SulReliabilityPrestressed concreteBridgesFORMMonte CarloConfiabilidadeConcreto protendidoPontesFORMMonte CarloThis study deals with the evaluation of the reliability index of prestressed girders members of road bridges in relation to the ultimate limit state (ULS) of bending failure. In a wide bibliographic review of scientific works that deal with structural reliability, prestressed structural elements and road bridges, it is observed that few of these deals specifically with the reliability of girders considering the codes NBR 7188 of 2013 and NBR 7187 of 2021. A mechanical model was developed for the calculation of the beam resistant moment and the Monte Carlo Method was used to obtain a data set that represents the statistics of the structure in the ULS. To obtain the reliability index B, the first order reliability method (FORM) was used. The values obtained by the analytical method are validated using the Monte Carlo simulation method. For all evaluated cases, the value of the reliability index was higher than 4.0, which is higher than the minimum required value of 3.5, showing that the national normative recommendations for the design of beam members guarantee a very conservative level of safety.Este estudo trata da avaliação do índice de confiabilidade de elementos protendidos de pontes rodoviárias em relação ao estado limite último (ELU) de ruptura por flexão. Em uma ampla revisão bibliográfica de trabalhos científicos que tratam de confiabilidade estrutural de elementos estruturais protendidos de pontes rodoviárias, observa-se que poucos deles tratam especificamente da confiabilidade de vigas considerando as normas NBR 7188 de 2013 e NBR 7187 de 2021. Um modelo mecânico foi desenvolvido para o cálculo do momento resistente da viga e o Método de Monte Carlo foi utilizado para obter um conjunto de dados que representam as estatísticas da estrutura no ELU. Para obter o índice de confiabilidade B, foi utilizado o método de confiabilidade de primeira ordem (FORM). Os valores obtidos pelo método analítico são validados usando o método de simulação de Monte Carlo. Para todos os casos avaliados, o valor do índice de confiabilidade foi superior a 4.0, que é superior ao valor mínimo exigido de 3.5, mostrando que as recomendações normativas nacionais para dimensionamento de elementos de vigas garantem um nível de segurança bastante conservador.Universidade Federal de Santa Maria2023-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaenatura/article/view/7388510.5902/2179460X73885Ciência e Natura; Vol. 45 No. esp. 3 (2023): ENMC/ECTM/MCSul/SEMENGO; e73885Ciência e Natura; v. 45 n. esp. 3 (2023): XXV ENMC - XIII ECTM - IX MCSul - IX SEMENGO; e738852179-460X0100-8307reponame:Revista Ciência e Natura (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttps://periodicos.ufsm.br/cienciaenatura/article/view/73885/62433Copyright (c) 2023 Ciência e Naturainfo:eu-repo/semantics/openAccessAvila, Vinicius HeidtmannReal, Mauro Vasconcellos2024-02-26T14:56:09Zoai:ojs.pkp.sfu.ca:article/73885Revistahttps://periodicos.ufsm.br/cienciaenatura/indexPUBhttps://periodicos.ufsm.br/cienciaenatura/oaicienciaenatura@ufsm.br || centraldeperiodicos@ufsm.br2179-460X0100-8307opendoar:2024-02-26T14:56:09Revista Ciência e Natura (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
Verificação da confiabilidade estrutural de uma ponte rodoviária no estado do Rio Grande do Sul
title Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
spellingShingle Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
Avila, Vinicius Heidtmann
Reliability
Prestressed concrete
Bridges
FORM
Monte Carlo
Confiabilidade
Concreto protendido
Pontes
FORM
Monte Carlo
title_short Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
title_full Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
title_fullStr Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
title_full_unstemmed Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
title_sort Verification of structural reliability of a highway bridge in the state of Rio Grande do Sul
author Avila, Vinicius Heidtmann
author_facet Avila, Vinicius Heidtmann
Real, Mauro Vasconcellos
author_role author
author2 Real, Mauro Vasconcellos
author2_role author
dc.contributor.author.fl_str_mv Avila, Vinicius Heidtmann
Real, Mauro Vasconcellos
dc.subject.por.fl_str_mv Reliability
Prestressed concrete
Bridges
FORM
Monte Carlo
Confiabilidade
Concreto protendido
Pontes
FORM
Monte Carlo
topic Reliability
Prestressed concrete
Bridges
FORM
Monte Carlo
Confiabilidade
Concreto protendido
Pontes
FORM
Monte Carlo
description This study deals with the evaluation of the reliability index of prestressed girders members of road bridges in relation to the ultimate limit state (ULS) of bending failure. In a wide bibliographic review of scientific works that deal with structural reliability, prestressed structural elements and road bridges, it is observed that few of these deals specifically with the reliability of girders considering the codes NBR 7188 of 2013 and NBR 7187 of 2021. A mechanical model was developed for the calculation of the beam resistant moment and the Monte Carlo Method was used to obtain a data set that represents the statistics of the structure in the ULS. To obtain the reliability index B, the first order reliability method (FORM) was used. The values obtained by the analytical method are validated using the Monte Carlo simulation method. For all evaluated cases, the value of the reliability index was higher than 4.0, which is higher than the minimum required value of 3.5, showing that the national normative recommendations for the design of beam members guarantee a very conservative level of safety.
publishDate 2023
dc.date.none.fl_str_mv 2023-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaenatura/article/view/73885
10.5902/2179460X73885
url https://periodicos.ufsm.br/cienciaenatura/article/view/73885
identifier_str_mv 10.5902/2179460X73885
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaenatura/article/view/73885/62433
dc.rights.driver.fl_str_mv Copyright (c) 2023 Ciência e Natura
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Ciência e Natura
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência e Natura; Vol. 45 No. esp. 3 (2023): ENMC/ECTM/MCSul/SEMENGO; e73885
Ciência e Natura; v. 45 n. esp. 3 (2023): XXV ENMC - XIII ECTM - IX MCSul - IX SEMENGO; e73885
2179-460X
0100-8307
reponame:Revista Ciência e Natura (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Revista Ciência e Natura (Online)
collection Revista Ciência e Natura (Online)
repository.name.fl_str_mv Revista Ciência e Natura (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv cienciaenatura@ufsm.br || centraldeperiodicos@ufsm.br
_version_ 1839277887948062720

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