| 摘要 |
A bridge bearing is provided to correspond to horizontal force with self-stiffness by transferring the horizontal force added on an upper plate to a base plate through a stopper and to restrict the perpendicular movement of an upper plate by hanging a portion of an upper plate between a stopper and an upper plate and to be separated from a base plate together with an upper plate by coupling with a stopper to be separable. A bridge bearing installed to a pier for supporting a bridge slab comprises a lower plate(52) fixed to the top of a pier horizontally by an anchor bolt, a base plate(54) fixed to the lower plate by bolting and provided with a hemi-spherical bearing seat(54a), a hemi-spherical bearing(BR) inserted to the hemi-spherical bearing seat of the base plate, an upper plate(70) placed on the hemi-spherical bearing to support the upper part of the hemi-spherical bearing and coupled with a fixed plate(72) fixed to a bridge slab integrally, a stopper(ST) coupled to two sides of the base plate integrally to support two ends of the upper plate and to prevent the longitudinal movement of the bridge slab, and a movement restriction device suspended with a portion of the upper plate and placed between the stopper and the upper plate to restrict the perpendicular direction of the upper plate, and coupled with the stopper to be separated from the base plate together with the upper plate. |
