Analysis Of Impact On Bridge Piers By Vehicles And Vessels

With the national economy growth and the rapid development of transport, the quantity of bridges and transport such as ship and vehicle is increasing. In recent years, accidental collisions of heavy vehicles with bridge and boats with bridge have occurred in the past, sometimes with catastrophic consequences. The impact on bridges from boats and vehicles deserves attention. The beginning of this thesis describes the basic theory and calculation methods for the collision of vehicles, ships and bridges. Scale model tests for vehicle-pier impact were conducted, compared with the finite element analysis of the model. Impact on piers by vehicles and vessels were simulated by finite element method. Conclusions from studies:(1) It was proved by reduced scale model test that the dynamic response of the collisions between vehicles and the bridge piers was proportional to the vehicle speed, and related to the type and size of bridge pier. The results of the finite element analysis of the model test were close to the test results, suggesting that Finite element analysis of the impact of the bridge is feasible.(2)It was proved by the finite element analysis that the dynamic response of the collisions between vehicles and the bridge piers was basically proportional to the quality and speed of the vehicle, and influenced by the impact angle.(3)It was proved by the finite element analysis that the dynamic response of the collisions between vessels and the bridge piers was basically proportional to the quality and speed of the vessel, and influenced by the impact angle.