APPARATUS OF BRIDGE BEARING

摘要

PURPOSE: A bridge bearing is provided to prevent the generation of pores when placing concrete, thereby easily applying designed load values and preventing the generation of cracks on construction portions. CONSTITUTION: A bridge bearing includes upper and lower plates(10,20), a load bearing device(C), and a joint(30). The load bearing device is placed in the upper and the lower plates, and is made of a rubber or metal material. The joint is formed on the lower side surface of the lower plate. The cross section area of the joint become small because the width of the joint become narrow downwardly left and right, and back and forth. At least one of air groove(31) and an air discharge strap coupled to the air groove are formed on the surface of the joint.