| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for providing a rubber bearing device excellent in earthquake resistant performance and durability.SOLUTION: A rubber bearing device on one side surface of the present invention is the rubber bearing device arranged between an upper structure and a lower structure of a bridge, and comprises a first metal plate, a second metal plate arranged under the vertical direction of the first metal plate, a sliding structure part arranged between the first metal plate and the second metal plate, that is, the sliding structure part for forming a sliding surface for making the first metal plate relatively movable to the second metal plate in the horizontal direction, one or a plurality of rubber plates arranged in at least one of the upper side of the first metal plate and the lower side of the second metal plate and a knock-off member arranged so as to limit a relative movable range in the horizontal direction of the first metal plate and the second metal plate, that is, the knock-off member having a rupture part formed of a recess provided in response to a height of the sliding surface so as to rupture when a load of a predetermined value or more acts in the horizontal direction.SELECTED DRAWING: Figure 1 |
