Dynamic Response Analysis Of Asphalt Pavement Structure

In this paper,dynamic loading caused by the surface evenness was obtained by Quarter-truck vehicle model.Finite element software ANSYS was employed to investigate the mechanical response of asphalt pavement structure under the axisymmetrical dynamic loading,and different loading period,loading amplitude and loading form were discussed in detail.Asphalt materior exhibited flow behavior in high temperature,which was research difficulties at present.This paper used burgers model and calculated deflection response of asphalt pavement under dynamic loading,and discussed different loading time.In fact,asphalt pavement structure was subjected to moving loading.So finite element software ANSYS was employed to develop 3-D model.And investigating dynamic response of asphalt pavement structure under moving loading,analyzing the stress characteristics of pavement under moving loading,discussing pavement fatigue mechanism under braking,and illustrating the mechanics of fatigue cracks on pavement,will be a great instruct to the pavement structure design,consruction and maintain.