Title: INFLUENCE OF GRANULAR BASE COURSE DEFORMATION TO FATIGUE FAILURE OF CONCRETE PAVEMENT UNDER CYCLIC LOADS
Abstract: The static and dynamic loading tests were conducted on a test concrete pavement with actual size at the Public Works Research Institute in August, 1997. In this paper, the influence of base course deterioration due to cyclic loads on fatigue damage of the concrete pavement was examined. In the mechanical analysis of the concrete pavement, the plate FEM was utilized. And two types of fatigue curves were utilized in the fatigue analysis of the concrete pavement. One is taken from the manual for design and construction of concrete pavement and the other is one which had been developed by one of the authors based on failure probability. As a result of the examination, it was found that the accumulation of the fatigue damage of the concrete pavement was accelerated along with the deterioration of the base course, and that the result of fatigue analysis by the fatigue curve of the manual is not able to explain the real condition which was observed in the test pavements.