| 摘要 |
A bridge bearing is provided to support a bridge floor slab by installing a variation shock absorber controlling the movement between a lower plate and an intermediate plate. A bridge bearing(100) comprises a lower plate(110); an upper plate separated from the lower plate, formed with a gradually deepened concave surface at the lower surface; an intermediate movement plate(130) movably installed on the lower surface, formed with a spherical groove or convex surface on an upper surface; a variation shock absorber installed between the lower and intermediate plates to allow the relative movement between the lower and intermediate plates about the usual horizontal load applied to between the lower and intermediate plates and to limit the relative movement about the horizontal shock; and a spherical member(150) installed between the intermediate movement and upper plates, formed with a spherical groove or the convex spherical surface combined to the spherical groove or the convex surface of the intermediate movement plate in the side of the intermediate movement plate and formed like a convex surface corresponded to the concave surface in the side of the upper plate. |
