Shear behavior of leveling layer and asphalt pavement of bridge deck pavement

The concept of interlayer shearing limited boundary was proposed based on the stress characteristics of the interlayer structure calculated by ANSYS in order to improve the problem of interlayer structure diseases of bridge deck pavement. The sensitivity analysis of important influencing factors was conducted, and the relationship between shear strength and interlayer shearing limited boundary was established. Results show that the transverse force coefficient is the key factor of interlayer shearing limited boundary. Increasing the upper asphalt layer or the lower layer thickness can both reduce the occurrence probability of shear failure. The effect of concrete leveling layer thickness on the shear state of bridge deck pavement is very small. The milling interlayer treatment measure can ensure the shear state safety of bridge deck pavement under the typical pavement structure. The interlayer shearing limited boundary can establish a relationship between the mechanical analysis and laboratory test, which can provide reference for the design of interlayer structure of bridge deck pavement. © 2017, Zhejiang University Press. All right reserved.