Mechanical Analysis And Structural Design Research Of Continuous Concrete Bridge Asphalt Pavement

As an important component of bridge decking,bridge decking pavement distributes the traffic loads,makes traffic smooth and comfortable.The destruction of the bridge deck pavement has become a main disease to the highway,and caused a lot of losses,in order to inhibit or reduce the destruction,this paper analyzed the pavement of continuous concrete bridge decking.Starting from the functions and requirements of bridge decking pavement, combined with the status quo of domestic and international research on the bridge decking pavement,the continuous bridge decking pavement was analyzed under a static car load and mobile car load,for the domestic decking pavement diseases.Two analysis models were established by common finite element analysis software.One was single-layer asphalt concrete pavement;the other was double-layer asphalt concrete pavement.It was assumed that all the layers were continuous.Under the static load,it was analyzed the most disadvantaged load arrangement,the affects of pavement thickness,modulus and slope to the bridge decking pavement.Under the mobile load,the top of the negative bending moment department was the calculating point;the maximal tensile stress and shear stress were calculated with different vehicle speed,pavement layer thickness and combination of different structures.Through the analysis of two typical structures,the advantages and disadvantages were given,and also given the recommendation of pavement layer thickness,structure and package design,the attentions through the construction.In the end of this paper a number of recommendations were put forward to further study.