The Study Of Suspension Bridge Anchorage System And The Question Of Contact Friction

In this paper, To the background of Xinghai Bay Sea-crossing Suspension Bridge, the main work is as follows:1,Review the development process of Suspension Bridge and Anchorage.2,Describe the static theory of gravity anchorage of Suspension Bridge.3,The frictional contact problem involves changes to the contact state, and the force mechanism is complex; but the transmission of the shear stress and the normal stress between them relies on its contact surface, so the correct analysis of contact surface of the deformation mechanism of shear failure of development,the load transfer process and the right analog is very important. In this paper, we studied the slippage development of the node on the contact element with the increasing of force F.4,When the structures in the anchorage system are confirmed, the force condition is the key to the design. Based on the soft ANSYS, the three-dimension finite element model of the suspension bridge anchorage is established to analyze the overall stability of the anchorage foundation and the displacement and stress conditions, as well as the contact slippage condition and contact pressure of the contact surface. The results meet the specifications.In this paper, with the finite element method, we studied the nonlinear problems of the suspension bridge anchorage system and analyzed the results based the finite element simulation model to ensure that the stability and security of anchor foundation.