The Cooperative Control of Subgrade Stiffness on Symmetrical Bridge–Subgrade Transition Section

In the field of civil engineering and architecture, concept symmetry has been widely accepted. The bridge can be treated as a typical symmetrical structure buildings. Among them, Subgrade identified an important part to bear vehicle loads. Severe pavement problems service capabilities will caused by bridge–subgrade transition section. Therefore, setting rigid–flexible is method solve this problem. section set at both ends bridge, which regarded structure. Based on nonlinear finite element numerical simulation synergistic theory, cooperative control were studied in work. change rule stiffness was discussed influence variation stress state also analyzed. Furthermore, subgrade strain A permanent prediction model established or subsidence difference coordination discussed.