The present invention, abutments and piers; A girder installed on the upper side of the abutment and the pier in the longitudinal direction, which is the axle direction; A crossbeam connecting the girder in the transverse direction; A pylon installed on the upper side of the pier; A floor slab installed on the upper side of the girder; And an inclined cable for fixing the floor plate slab to the pylon; wherein the pylon has a lower end integrally coupled to the crossbeam and the floor plate slab, and at the same time being separated from the pier at the lower side thereof, the same movable structure as the girder It relates to an extrados bridge structure, characterized in that, by separating the pylon from the pier and manufacturing each of the precast segments, the excellence of workability and quality can be increased, and the pylon and the girder are integrated and the pylon and the girder are integrated. By forming the movable structure, it is possible to reduce the height of the pylon and at the same time achieve a long span.
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