| 摘要 |
The present invention relates to a bridge supporting device allowing rotation in a longitudinal direction. The bridge supporting device allowing rotation in a longitudinal direction comprises: an upper frame (110) couple on a lower side of a upper plate of a bridge; a middle frame (130) which is arranged in a lower area of the upper frame (110) and has a concave seating groove (131) on an upper surface, a protruding part (132) on a lower surface, and a first screw part (133) on an inner wall of the lower end; a sliding plate (140) which is arranged between the upper frame (110) and the middle frame (130) and is seated on the seating groove (131) of the middle frame (130) to facilitate sliding; a lower frame (120) which is arranged in the lower area of the middle frame (130), is fixed on an upper surface of the bridge by multiple anchor bolts (160), and has a holding part (122) on an upper surface; multiple elasticity increasing members arranged on both sides of the holding part (122) of the lower frame (120); and an elastic module (150) which is arranged between the lower frame (120) and the middle frame (130) to absorb internal stress and which has a first groove (151) having on the upper surface and having the protrusion part (132) of the middle frame (130) inserted thereinto and a second groove (152) having on a lower surface and having the holding part (122) of the lower frame (120) inserted thereinto to allow rotation in a longitudinal direction. |
