Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional Manancial UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/7868 |
Resumo: | The deployment of a modern road system, with all necessary infrastructure needed for users to travel in safety and comfort, requires high levels of financial investments. The expenses with substantial maintenance and early reconstruction of our tracks are unacceptable, as we have field and laboratory equipment that allows us for a better understanding of materials and design methods. Thus, this research had as general objectives structuring a database with materials and typical elastic parameters of flexible pavements of Rio Grande do Sul roads, through the process of modulus backcalculation, and determine the best structural options regarding the cost-benefit relationship, making flexible pavement project engineers job easier. There were got the resilient modules of five federal highways located in our state (BR 158, BR 285, BR 287, BR 290 e BR 392), through backcalculated deflectometric basins collected with FWD equipment, provided by DNIT. After the application of a statistical filter based on the coefficient of variation percentage, in order to eliminate the spurious data, a typical module database of the resilient materials evaluated was generated. Based on the data and on the literature, there were defined structural groups based on different structural assemblies through different combinations between resilient modules and thicknesses of layers commonly used in flexible pavements. Using mechanistic analysis concepts, it was evaluated by the AEMC software, specific tensile strains in lower fiber coating (t), and subgrade top compression (c), which, later subsidize the implementation of performance models for fatigue and permanent deformation consolidated in the literature, enabling obtaining the N number of standard axles for each structural assembly set. At the same time, using DNIT road cost system (SICRO II), pavement services were budget, determining the cost per km for the structures previously defined. Comparing the cost/km and critical N data (evaluated from the comparison of results obtained by the models of performance) there was obtained the cost/benefit ratio for all data sets. Evaluating the 100 most economic positions, it is observed that 100% of structural assemblies have the highest arbitrated asphalt concrete thicknesses (12.5 cm). It is also evident, the influence that the asphalt concrete has, as 88% of occurrences among the top 100 positions have the highest resilient arbitrated module. Thus, it is concluded that the variables that produce the best cost/benefit relationship are the modulus and the thickness of the asphalt concrete layer. |
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2015-05-052015-05-052014-08-25RIBAS, Jeancarlo. Typical elastic parameters of flexible pavement materials in Rio Grande do Sul and its aplication in an cost/benefit analysis. 2014. 190 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014.http://repositorio.ufsm.br/handle/1/7868The deployment of a modern road system, with all necessary infrastructure needed for users to travel in safety and comfort, requires high levels of financial investments. The expenses with substantial maintenance and early reconstruction of our tracks are unacceptable, as we have field and laboratory equipment that allows us for a better understanding of materials and design methods. Thus, this research had as general objectives structuring a database with materials and typical elastic parameters of flexible pavements of Rio Grande do Sul roads, through the process of modulus backcalculation, and determine the best structural options regarding the cost-benefit relationship, making flexible pavement project engineers job easier. There were got the resilient modules of five federal highways located in our state (BR 158, BR 285, BR 287, BR 290 e BR 392), through backcalculated deflectometric basins collected with FWD equipment, provided by DNIT. After the application of a statistical filter based on the coefficient of variation percentage, in order to eliminate the spurious data, a typical module database of the resilient materials evaluated was generated. Based on the data and on the literature, there were defined structural groups based on different structural assemblies through different combinations between resilient modules and thicknesses of layers commonly used in flexible pavements. Using mechanistic analysis concepts, it was evaluated by the AEMC software, specific tensile strains in lower fiber coating (t), and subgrade top compression (c), which, later subsidize the implementation of performance models for fatigue and permanent deformation consolidated in the literature, enabling obtaining the N number of standard axles for each structural assembly set. At the same time, using DNIT road cost system (SICRO II), pavement services were budget, determining the cost per km for the structures previously defined. Comparing the cost/km and critical N data (evaluated from the comparison of results obtained by the models of performance) there was obtained the cost/benefit ratio for all data sets. Evaluating the 100 most economic positions, it is observed that 100% of structural assemblies have the highest arbitrated asphalt concrete thicknesses (12.5 cm). It is also evident, the influence that the asphalt concrete has, as 88% of occurrences among the top 100 positions have the highest resilient arbitrated module. Thus, it is concluded that the variables that produce the best cost/benefit relationship are the modulus and the thickness of the asphalt concrete layer.A implantação de sistemas viários modernos, com toda infraestrutura necessária para que o usuário trafegue com segurança e conforto, requer elevados níveis de investimentos financeiros. Os gastos substanciais com manutenção e reconstrução precoce de nossos pavimentos são inaceitáveis, uma vez que dispomos de equipamentos de campo e laboratório que permitam melhor entendimento acerca dos materiais e métodos de projeto. Desta forma, esta pesquisa teve como objetivos gerais estruturar-se um banco de dados com materiais e parâmetros elásticos típicos de pavimentos flexíveis do Rio Grande do Sul, através do processo de retroanálise, determinando-se as melhores opções estruturais com vistas à relação custo-benefício, facilitando o trabalho de engenheiros em projetos de pavimentos flexíveis. Foram obtidos os módulos resilientes de cinco rodovias federais localizadas no estado (BR 158, BR 285, BR 287, BR 290 e BR 392), através de retroanálise das bacias deflectométricas coletadas com o equipamento FWD, disponibilizadas pelo DNIT. Após a aplicação de um filtro estatístico baseado no coeficiente de variação percentual, no intuito de eliminarem-se os dados espúrios, gerou-se um banco de dados de módulos resilientes típicos dos materiais avaliados. A partir do banco de dados e de consulta bibliográfica, definiram-se conjuntos estruturais por meio de diferentes combinações entre módulos resilientes e espessuras de camadas comumente utilizadas em pavimentos flexíveis. Utilizando-se os conceitos de análise mecanicista, avaliou-se através do software AEMC, as deformações específicas de tração na fibra inferior do revestimento (t), e de compressão no topo do subleito (c), as quais, posteriormente, subsidiaram a aplicação de modelos de desempenho para fadiga e deformação permanente consolidados na literatura, permitindo a obtenção do número N de eixos padrões para cada conjunto estrutural definido. Em paralelo, empregando-se o sistema de custos rodoviários (SICRO II) do DNIT, orçaram-se os serviços de pavimentação, determinando-se o custo/km para as estruturas previamente definidas. Cruzando-se os dados de custo/km e N crítico (avaliado a partir da comparação dos resultados obtidos pelos modelos de desempenho), obteve-se a relação custo/benefício para todos os conjuntos de dados. Avaliando-se as 100 posições mais econômicas, observa-se que 100% dos conjuntos estruturais possuem as maiores espessuras de concreto asfáltico arbitradas (12,5 cm). Percebese também, a influência do módulo do concreto asfáltico, onde, 88 % das ocorrências entre as 100 primeiras posições possuem o maior módulo resiliente arbitrado. Desta forma, conclui-se que as variáveis que produzem as melhores relações custo/benefício são o módulo e a espessura da camada de concreto asfáltico.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Engenharia CivilUFSMBREngenharia CivilPavimento flexívelRetroanáliseAnálise mecanicistaCusto/benefícioFlexible pavementBackcalculationMechanistic analysisCost/benefitCNPQ::ENGENHARIAS::ENGENHARIA CIVILParâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefícioTypical elastic parameters of flexible pavement materials in Rio Grande do Sul and its aplication in an cost/benefit analysisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisSpecht, Luciano Pivotohttp://lattes.cnpq.br/8038412953408618Pereira, Deividi da Silvahttp://lattes.cnpq.br/9639329922610388Balbo, José Tadeuhttp://lattes.cnpq.br/5869205330172001http://lattes.cnpq.br/8784583075175237Ribas, Jeancarlo3001000000034003003003003008ec440eb-7c63-4e2e-8cd0-a61f73b7ab5dc10f5d4a-d5ed-4118-a0af-1079746e0776f66db7bf-e472-49a5-9b3b-96857fc64c124c547778-f3c6-47f8-82fe-96f599211795info:eu-repo/semantics/openAccessreponame:Repositório Institucional Manancial UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALRIBAS, JEANCARLO.pdfapplication/pdf9780171http://repositorio.ufsm.br/bitstream/1/7868/1/RIBAS%2c%20JEANCARLO.pdfc86e650af8efa161cda26885ebc7d8bcMD51TEXTRIBAS, JEANCARLO.pdf.txtRIBAS, JEANCARLO.pdf.txtExtracted texttext/plain533425http://repositorio.ufsm.br/bitstream/1/7868/2/RIBAS%2c%20JEANCARLO.pdf.txt0b5dc306e4d2a53b58f8c6d7b64fe969MD52THUMBNAILRIBAS, JEANCARLO.pdf.jpgRIBAS, JEANCARLO.pdf.jpgIM Thumbnailimage/jpeg5236http://repositorio.ufsm.br/bitstream/1/7868/3/RIBAS%2c%20JEANCARLO.pdf.jpg02230add5547cb2e4259b9b2026c1f66MD531/78682022-09-08 15:01:13.022oai:repositorio.ufsm.br:1/7868Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestouvidoria@ufsm.bropendoar:39132022-09-08T18:01:13Repositório Institucional Manancial UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
dc.title.alternative.eng.fl_str_mv |
Typical elastic parameters of flexible pavement materials in Rio Grande do Sul and its aplication in an cost/benefit analysis |
title |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
spellingShingle |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício Ribas, Jeancarlo Pavimento flexível Retroanálise Análise mecanicista Custo/benefício Flexible pavement Backcalculation Mechanistic analysis Cost/benefit CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
title_full |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
title_fullStr |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
title_full_unstemmed |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
title_sort |
Parâmetros elásticos típicos de materiais de pavimentos flexíveis do Rio Grande do Sul e sua aplicação em uma análise de custo/benefício |
author |
Ribas, Jeancarlo |
author_facet |
Ribas, Jeancarlo |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Specht, Luciano Pivoto |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8038412953408618 |
dc.contributor.referee1.fl_str_mv |
Pereira, Deividi da Silva |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9639329922610388 |
dc.contributor.referee2.fl_str_mv |
Balbo, José Tadeu |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/5869205330172001 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8784583075175237 |
dc.contributor.author.fl_str_mv |
Ribas, Jeancarlo |
contributor_str_mv |
Specht, Luciano Pivoto Pereira, Deividi da Silva Balbo, José Tadeu |
dc.subject.por.fl_str_mv |
Pavimento flexível Retroanálise Análise mecanicista Custo/benefício |
topic |
Pavimento flexível Retroanálise Análise mecanicista Custo/benefício Flexible pavement Backcalculation Mechanistic analysis Cost/benefit CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.eng.fl_str_mv |
Flexible pavement Backcalculation Mechanistic analysis Cost/benefit |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
The deployment of a modern road system, with all necessary infrastructure needed for users to travel in safety and comfort, requires high levels of financial investments. The expenses with substantial maintenance and early reconstruction of our tracks are unacceptable, as we have field and laboratory equipment that allows us for a better understanding of materials and design methods. Thus, this research had as general objectives structuring a database with materials and typical elastic parameters of flexible pavements of Rio Grande do Sul roads, through the process of modulus backcalculation, and determine the best structural options regarding the cost-benefit relationship, making flexible pavement project engineers job easier. There were got the resilient modules of five federal highways located in our state (BR 158, BR 285, BR 287, BR 290 e BR 392), through backcalculated deflectometric basins collected with FWD equipment, provided by DNIT. After the application of a statistical filter based on the coefficient of variation percentage, in order to eliminate the spurious data, a typical module database of the resilient materials evaluated was generated. Based on the data and on the literature, there were defined structural groups based on different structural assemblies through different combinations between resilient modules and thicknesses of layers commonly used in flexible pavements. Using mechanistic analysis concepts, it was evaluated by the AEMC software, specific tensile strains in lower fiber coating (t), and subgrade top compression (c), which, later subsidize the implementation of performance models for fatigue and permanent deformation consolidated in the literature, enabling obtaining the N number of standard axles for each structural assembly set. At the same time, using DNIT road cost system (SICRO II), pavement services were budget, determining the cost per km for the structures previously defined. Comparing the cost/km and critical N data (evaluated from the comparison of results obtained by the models of performance) there was obtained the cost/benefit ratio for all data sets. Evaluating the 100 most economic positions, it is observed that 100% of structural assemblies have the highest arbitrated asphalt concrete thicknesses (12.5 cm). It is also evident, the influence that the asphalt concrete has, as 88% of occurrences among the top 100 positions have the highest resilient arbitrated module. Thus, it is concluded that the variables that produce the best cost/benefit relationship are the modulus and the thickness of the asphalt concrete layer. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-08-25 |
dc.date.accessioned.fl_str_mv |
2015-05-05 |
dc.date.available.fl_str_mv |
2015-05-05 |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
RIBAS, Jeancarlo. Typical elastic parameters of flexible pavement materials in Rio Grande do Sul and its aplication in an cost/benefit analysis. 2014. 190 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/7868 |
identifier_str_mv |
RIBAS, Jeancarlo. Typical elastic parameters of flexible pavement materials in Rio Grande do Sul and its aplication in an cost/benefit analysis. 2014. 190 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014. |
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http://repositorio.ufsm.br/handle/1/7868 |
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Universidade Federal de Santa Maria |
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UFSM |
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Engenharia Civil |
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Universidade Federal de Santa Maria |
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