Wedge-shaped Pushing Device for Bridge and Construction Method Thereof

A wedge-shaped pushing device for bridge, comprising:

• a base, a lifter and a pushing mechanism, wherein the base has a platform disposed at a top side thereof, and the platform has a wedge-shaped block disposed on a side of the platform, and the top side forms an upper slope, and the bottom side is substantially in in horizontal shape and attached closely with the platform;
• the lifter has a pad disposed at the top end thereof;
• the pushing mechanism is installed on the other side of the platform and has an upper wedge-shaped seat, a plurality of hydraulic cylinders and a support seat, and the top side of the upper wedge-shaped seat has a cushion, and the bottom side of the upper wedge-shaped seat forms a lower slope, and the angle of the lower slope is matched with the angle of the upper slope;
• the hydraulic cylinder has a piston rod with an end coupled to the upper wedge-shaped seat;
• and an upper end of the support seat is fixed and combined with the hydraulic cylinder by a pivot, and the bottom of the support seat is attached closely with the platform.