RESUMODevido a matriz dos transportes brasileira ser constituída em grande parte por deslocamentos rodoviário, torna-se importante conhecer os principais fatores que influenciam a ruína de uma rodovia, por conta disto o presente trabalho visa estudar o comportamento de um pavimento exposto a uma variação sazonal de temperatura, assim permitindo a análise das respostas estruturais quando submetido aos carregamentos dos eixos rodoviários. Para realizar esta análise, levaram-se em conta três tipos de revestimentos de espessuras diferentes (5, 10 e 15 cm) considerando que o módulo de resiliência destas camadas varia com a temperatura. Os dados experimentais de temperatura são referentes a média de dez dias de forte insolação do mês de fevereiro das 13:00h horas às 18:20h variando de 20 em 20 minutos. Através do software AEMC/SisPav, que utiliza os módulos calculados para cada seção do revestimento e os módulos referentes as demais camadas do pavimento, serão calculadas as deformações, tensões e deslocamentos para estimar sua vida útil através de modelos de desempenho que simulam a degradação da estrutura através dos mecanismos de ruptura por fadiga e deformação permanente. Palavras-chave:Pavimento flexível, Variação da temperatura, Módulo de resiliência, Respostas Estruturais. BSTRACTDue to Brazilian transport infrastructure logistics chain to be mainly supported by road transport it is important to know the main factors that lead roads to ruin, because of this, the present work aims to study the behavior of a pavement exposed to a seasonal variation of temperature, which will allow the structural responses analysis when is subjected to the loadings of the road transport. To perform this analysis, three types of coatings of different thicknesses (5, 10 and 15 cm) were taken into account, was considered that the resilience modulus of these layers varies with the temperature. Experimental temperature data refers to the average of ten days of strong insolation in the month of February from 13:00 a.m. to 18:20 a.m. ranging from 20 in 20 minutes. Through the AEMC / SisPav software, that uses the calculated modules for each coating section, and the modules referring to the other layers of the pavement, it will be calculated the deformations, stresses, and displacements to estimate their useful life through performance models that simulate degradation of the structure through the mechanisms of fatigue rupture, and permanent deformation.
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