Upper jacking structure for dismantling bent cap

The utility model relates to an upper jacking structure for removing a cover beam. The upper jacking structure comprises the cover beam, two pier columns supported at the two ends of the cover beam and a bridge deck supported on the cover beam. The foundation is built on the ground, the lower ends of the two supporting frames are supported on the foundation, the two supporting frames are distributed on the two sides of the bent cap in the longitudinal bridge direction, each supporting frame comprises two steel pipe rows distributed in the longitudinal bridge direction, and steel pipes in the same steel pipe row are distributed in the transverse bridge direction; the upper ends of all the steel pipes in the steel pipe row are supported below the same distribution beam extending in the transverse bridge direction, a plurality of jacking jacks are arranged above the distribution beam, and the jacking jacks are used for jacking the bridge floor. The bridge deck jacking device is reliable in supporting and can be