2025 Volume 4 Issue 1 Pages 240-248
Road bridge bearing play a role as boundary conditions in verifying the load-bearing capacity of the superstructure and substructure. If the bearings to be movable fails, the design premise will collapse and unexpected stresses may occur in the superstructure and substructure. Therefore, when inspecting the bearings, it is necessary to ensure that they follow the horizontal and rotational displacements of the superstructure due to active loads, temperature changes, etc. However, it is generally difficult to inspect the function of a movable bearing only visually. In this study, the functional state of movable bearings is understood by focusing on the response displacement difference of the bearings that make up one bearing line. The results showed that there is a correlation between response displacement and bearing spacing when the bearing is sound, and that this relationship changes as the function of the bearing deteriorates.
