With the construction of long-span bridges on the waterway becoming more and more exten-sive,their piers often have a certain inclination angle near the water surface.To study the influence of the inclination direction of the pier on the protection of the self-floating anti-collision device,this pa-per uses the piers equipped with the self-floating anti-collision device with two inclination directions and 6 000DWT class bulk carrier as the research object to carry out the nonlinear finite element simu-lation of the collision,and analyzes the influence of the inclination direction of the pier on pier impact force,system energy conversion and bow structure failure under ship collision at different speeds.The results show that the cambered pier is less affected by the impact force,and its anti-collision device absorbs more energy through deformation and has better protection effect.The research results can provide reference for the design of long-span piers and the development of anti-collision devices.
ship-bridge collisionanti-collision devicenumerical simulationtilted piercable bent tower