Load Test Analysis Of Prestressed Concrete Continuous Box Girders

With the development of roads and bridges, more and more new highways and bridges were built. At the same time, many of the existing bridges also entered a maintenance phase gradually. We must carry out bridge identification to meet the growing load requirements, make full use of highway bridge and make highway bridge serve continuously and securely for highway transportation. And carrying out load test on the bridge is an important means of bridge identification. Load test of bridge is a scientific test work which carried on the direct load test to the bridge structure. It can provide advantageous and direct-viewing basis for administrators to evaluate the capacity of loading of bridge and accumulate practical datum especially for the new structure, the new design theory and development and the application of the new construction craf.This paper elaborated domestic and foreign development status of prestressed concrete continuous box girders and study status of related issues. Then the paper introduced the force characteristics and analysis method of box girders and introduced the role, purpose, classification and procedures of dead load test. Finally the paper introduced construction evaluation of dynamic.This paper introduced the basic idea and processes of finite element method. And the paper set up solid element model of EMUERHE bridge using finite element analysis software MIDAS/Civil.The dead load test efficiency of EMUERHE bridge was analyzed. And deflection, lateral distribution coefficient, relative residual deformation and strain was analyzed by using the solid element model. Finally dynamic behavior of the bridge was analyzed.