| As an important part of the whole bridge structure,the bridge deck pavement can not only be used as the load of the stress layer,but also can be used as a protective layer to avoid the premature failure of the bridge deck.A reasonable pavement structure design can improve the durability of bridge structure and service life.Asphalt concrete bridge pavement layer stress state is very complex because of its working environment and loading effect.Analysis of pavement layer mechanical characteristics must consider the material,external environment,load and so on.However,in the design of bridge deck pavement,usually the bridge deck pavement only as a bridge subsidiary structure,do not done a computational analysis.Current specification only gives some guidance for thickness of the pavement layer,has not formed the corresponding design theory and design specifications.In this paper,analysis the failure mode and the failure reason,using ANSYS finite element software,through modeling and simulation of bridge deck pavement layer stress,calculation and analysis of the mechanical behavior of the bridge deck system and stress distribution.Using multi-layer elastic layer theory for analysis the mechanical behavior of the pavement.The effects of pavement layer parameters,horizontal force and overload on the mechanical response of pavement were analyzed.Studying the influence of temperature and waterproof layer parameters on the stability of pavement structure.Waterproof layering model has a great influence on the interlayer stability.Temperature,overload have a greater influence on the interlayer stability.Analyzing the calculated results to supplement the bridge deck pavement structure design theory,and extend the service life of bridge deck pavement. |
