| 摘要 |
<p>The present invention pertains to a bridge bearing, which is formed in the same shape as the upper end surface of a bridge (referred to as'lower structure') so as to be short in the longitudinal direction and long in the traversal direction, wherein the vertical load of a bridge floor (referred to as 'upper structure') which is applied to bridges, may be efficiently distributed while the rotation function of the bridge floor (hereinafter, 'rotation') may be smooth in the longitudinal direction but restrained in the traversal direction, such that the bridge floor has a stabilized supporting structure and further incorporates a seismic isolation function. The bridge bearing includes: a lower plate section (110); a port (120) secured to the lower plate section (110); an elastic rubber (130) which is formed in the shape of a panel having a relatively longer traversal length that is perpendicular to the longitudinal direction compared to the longitudinal length, and secured to the port (120); a piston (140) secured to the elastic rubber (130) and pressurizes the same; and a top plate section (150) secured to the piston (140), wherein the bridge bearing is disposed between a bridge (10) and a bridge floor (20) for support.</p> |
