Effect of trapezoid-rib-thickness parameter to pavement′s endurance on orthotropic deck

Trapezoid rib is widely used in orthotropic deck,the rigidity of rib is very important for mechanics performance of box girder and deck pavement.If rib′s section is confirmed,the thickness of rib wall is the most important parameter for rib′s rigidity.The mechanics response of pavement on the orthotropic deck with series rib-wall thickness under wheel loading is analyzed by finite element method,based on linear elastic theory and layer theory.Reasonable rib-wall thickness is advised and optimized the design project is offered here.The results can be a reference for box girder and orthotropic deck pavement design.