| 摘要 |
PROBLEM TO BE SOLVED: To easily set to an initial value an amount of displacement by compression load of a plurality of elastic bearing main bodies in an elastic bearing device composed of a plurality of elastic bearing bodies. SOLUTION: With regard to an elastic bearing device for a bridge, an upper metal plate 7 and a lower metal plate 2 are fixed on the upper and lower faces of an elastic bearing main body 1 composed of a rubber layer, an elastic bearing body unit 12 for bridge bearing is constituted, and the upper and lower metal plates 7, 12 of a plurality of the elastic bearing body units 12 are connected by upper and lower support plates 8, 3 respectively. An amount of swelling (e) of each elastic bearing main body 1 by compression load is adjusted by adjusting size of gap size C between the adjacent elastic bearing main bodies. |
