摘要 |
PURPOSE: A method for bending a reinforcing rod for a PSC(Prestressed Concrete Girder) having a curved surface and a prestressed concrete girder using the same are provided to reduce stress concentration on the concrete section of a PSC girder by employing a curved surface and prevent the plastic deformation of a reinforcing rod due to bending. CONSTITUTION: A method for bending a reinforcing rod for a PSC comprises steps of: supplying a reinforcing rod(2) to the upper side of an upper plate(10), holding the supplied reinforcing rod with a reinforcing rod fixing unit(20), drawing an up/down jig(40) out of the upper side of the upper plate, transferring the reinforcing rod upward so that the reinforcing rod is bent upward around a stationary roller(15), supporting the transferred reinforcing rod with the up/down jig and the stationary roller so that the reinforcing rod is bent downward with a movable roller(30), bending the reinforcing rod upward again with the movable roller, and returning the movable roller to the original position and releasing the holding of the reinforcing rod.
|