Numerical analysis about mechanical behavior of concrete bridge deck pavement

Abstract:

A finite element model combined with bridge deck pavement structural style is established to analyze mechanical properties and influence factors of bridge deck pavement structure. The effect of different levels braking force coefficients, top and bottom layer material modulus combination of bridge deck pavement, deck pavement thickness variation are analyzed.Results show that different horizontal loads have little effect on principal stress but much effect on shear stress inside the pavement layer. With the increase of horizontal load, the maximum shear stresses inside pavement layer and waterproof adhesive layer increase linearly.Principal stress inside the pavement layer changes little, while shear stress between layers decreases in a small amplitude with the increase of combination modulus of pavement layer.Increase of the thickness of pavement layer has little effect on principal stress and maximum shear stress between layers decreases with increase of thickness.Conclusions obtained by this paper can be used to provide theoretical reference for material selection and structure design of bridge deck pavement.