| 摘要 |
<p>According to an embodiment of the present invention, provided is a bridge bearing for transferring a load of an upper structure to a lower structure by being installed between the upper structure and the lower structure of a bridge. According to the embodiment of the present invention, the present invention is to provide a manufacturing method of the elastic bridge bearing to stiffen urethane in the solid states by injecting the urethane into an interval between a rubber main body and the lead and to prevent the damage to the lead when the rubber main body is horizontally displaced by an external force, thereby improving the stiffness. In addition, the other embodiment of the present invention is to provide a friction-typed bridge bearing to maintain a rotation function by increasing the rigidity of the urethane when the load is stacked on the upper structure of the bridge and to prevent perpendicular sagging and local buckling generated in the urethane.</p> |
