• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2007.tde-06072007-084827
Document
Author
Full name
José Miguel Belucio Pereira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2007
Supervisor
Committee
Fabbri, Glauco Tulio Pessa (President)
Parreira, Alexandre Benetti
Viviani, Eliane
Title in Portuguese
Um procedimento de retroanálise para pavimentos flexíveis baseado na teoria do ponto inerte e em modelagem matemática
Keywords in Portuguese
Ponto inerte de bacias deflectométricas
Retroanálise de pavimentos flexíveis
Viga Benkelman
Abstract in Portuguese
Apresenta-se um processo de retroanálise de pavimentos flexíveis baseado na teoria do ponto inerte para a retroanálise do subleito, readaptado para bacias de deflexões teóricas obtidas com o carregamento para o ensaio com a viga Benkelman. Além da retroanálise do subleito, foi desenvolvido um modelo matemático fatorial para a obtenção do módulo resiliente equivalente das camadas presentes sobre o subleito, consideradas como uma única, denominada camada equivalente. Para a readaptação da teoria do ponto inerte e elaboração do modelo fatorial foram utilizados bancos de dados de bacias deflectométricas teóricas geradas pelo programa ELSYM5. Avaliou-se o erro na retroanálise do subleito e da camada equivalente para o processo proposto mediante comparações com outras metodologias semelhantes de retroanálise. A teoria do ponto inerte proporciona o desenvolvimento de um algoritmo simples, convergente e de resposta única para retroanálise de subleito de pavimentos flexíveis, minimizando a influência da experiência do engenheiro na resposta do problema. O procedimento de retroanálise elaborado nesta pesquisa caracteriza-se por simplicidade, sendo de uso adequado, entre outros, para avaliações em nível de rede.
Title in English
A backcalculation procedure for flexible pavements based on inertial point theory and in mathematical modeling
Keywords in English
Backcalculation of flexible pavements
Benkelman beam
Inertial point of deflection bowls
Abstract in English
A backcalculation procedure for flexible pavements is introduced based on inertial point theory for subgrade backcalculation readapted to theoretical deflection basins obtained with the load to Benkelman beam test. Beside subgrade backcalculation, it was developed a factorial mathematical model to obtain equivalent resilient modulus from the layers presents upon subgrade, considered as unique and denominated equivalent layer. To the readaptation of inertial point theory and preparing of factorial model were used theoretical deflection bowls data base generated by ELSYM5 program. The subgrade and equivalent layer modulus backcalculation were evaluated to the proposed process through others similar backcalculation methodologies. The inertial point theory provides the development of simple algorithms, convergent and with unique solution for flexible pavements subgrade backcalculation minimizing the influence of engineer experience in the problem answer. The backcalculation procedure developed in this research is characterized by simplicity being of suitable use at network evaluation level among others.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Miguel.pdf (6.93 Mbytes)
Publishing Date
2007-07-20
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.