PROGRAMA PARA ANÁLISE TRIDIMENSIONAL DE PAVIMENTOS ASFÁLTICOS / PROGRAMA PARA EL ANÁLISIS TRIDIMENSIONAL DE PAVIMENTOS / A COMPUTER CODE FOR THREE-DIMENSIONAL ANALYSIS OF ASPHALT PAVEMENTS

AUTOR(ES)
DATA DE PUBLICAÇÃO

1997

RESUMO

This work presents the implementation of a non-linear three- dimensional finite element program for the analysis of flexible pavement (highway and runway pavements) through a mechanistic design method. Geotechnical materials of each pavement layer are modeled considering the variable resilient formulation dependent on the actual stress state. The influence of multiple wheel loadings on the displacement and stress fields are also considered and fully investigated. Three-dimensional results of both linear and non-linear analysis are compared with those obtained through several computer programs considering the usual hypotheses of traditional pavement design such as axissymetric loadings (one wheel), linearity of elastic media, etc. An illustrative example is also presented, considering the preliminary design of the Peruvian road between Iquitos-Nauta through the mechanistic method herein introduced. Some of the soil properties related to this application have been determined through specific tests carried out at the COPPE/UFRJ Pavement Laboratory.

ASSUNTO(S)

three-dimensional stress analysis metodo de los elementos finitos asphalt pavements analise tridimensional de tensoes pavimentos asfalticos metodo dos elementos finitos finite element method

ACESSO AO ARTIGO

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