| 摘要 |
The present invention relates to a reinforcement apparatus for a girder sectional force of a bridge and a manufacturing method therefor. The present invention comprises: girders installed between abutments; cross beams horizontally connecting the girders; a slab connecting the upper sides of the girders; a first and a second fixing device installed in the cross beams positioned both sides with respect to a reference line in the basis of the center in the longitudinal direction of the girder; a strand of which one side is fixated to the first fixing device and another side is fixated to the second fixing device and a center portion is positioned inside the lower side of the girder and providing tension. According to the present invention, the present invention reinforces that the sectional force of the girder is reduced due to self-weight of the cross beam and the slab. after the girders are installed between the abutments (lower structures of a bridge), and the cross beams and the slab is formed on the girders. |
