Prestressed concrete curved box girder continuous dragging device and manufacture method of box girder thereof

The present invention relates to a prestressed continuous concrete box girder curved pulling device, and a header in the box girder casing are provided on both sides of the web tail and a limiting means correcting means, said limiting means and said correcting means in the They are arranged corresponding to both sides of the web. The present invention further provides a method of manufacturing a box girder. The present invention can only be used on the original plane of the linear or circular curve drag method straight beam line for the transition curve for the drag beams or linear, circular, and linear combinations of the transition curve on the plane.