Finite Element Analysis Of The Asphalt Road Stresses

This text makes the simple introduction to calculating and basic development in mechanics of asphalt road general situation, flexible layer system theories and finite element methods first, expatiating the research purpose and meanings.Then according to road finite element theories, establishes the car wheel models of load and the asphalt road models of finite element. On basis of the triangle layered-assembled element of elastic thin slabs, using the finite element program by Fortran language, analyzes under the different perpendicular loads the asphalt road variable regulations of the pavement deflections, the pavement biggest shearing stresses, he pavement octahedral shearing stresses, the basecourse underside stresses, the sub-basecourse underside stresses adopting the Winkler foundation model and the flexible half space foundation model, getting some general conclusions.Then this text uses the different asphalt road parameters : the pavement modulus, the pavement thickness, the basecourse modulus, the sub-basecourse modulus and the different asphalt road responds : the pavement deflections, the pavement biggest shearing stresses, the basecourse underside stresses, the sub-basecourse underside stresses, analyzing the asphalt road responding regulations to the influences of each pavement parameters under flexiblible analysis.Finally this text puts forward some consultations to the engineering and some suggestions to the further research.