Dimensionamento Comparativo de Pavimentos Flexíveis Pelos Métodos do DNIT e do SISPAV, Com Verificação Pelo Programa ELSYM5

Abstract

The goal of this study is to compare the design of flexible pavements under different levels of traffic and CBR in the subgrade of flexible pavements under different levels of traffic and CBR in the subgrade, for the empirical and mechanistic-empirical methods currently used in the market was used to this comparison. This project has step by step of the design of both methods and the summarized results of thicknesses obtained in Elsym5 software was used to measure the stresses on the final structures and to indicate the advantages and disadvantages of each method The official empirical method of DNIT (known as DNER before) considered the official method of Brazilian paving and the SisPav software, an empirical-mechanistic method, is considered the DNIT's successor method to design pavements. From the various traffic conditions and support were obtained several resulting structures, who’s the main efforts were useful to evaluate the eventual sub or oversizing. Therefore, after this study, is possible to confirm the need for a new method of design which considers the mechanistic theory and national experience