Ultrahigh and overweight convex beam formwork support

The utility model relates to an ultrahigh and overweight convex beam formwork support. The utility model belongs to the technical field of formwork supports for cast-in-place ring beams on wall tops in constructional engineering. Concrete wall, a concrete convex beam in concrete pouring connection with the concrete wall is arranged at the upper end of the concrete wall; the outer wall of the concrete convex beam is provided with a beam side formwork connected with the concrete convex beam in a frame-type sleeving mode. A plurality of cantilever continuous beams penetrating through the concretewall are arranged at the lower end of the beam side formwork, and two ends of each cantilever continuous beam extend out of the concrete wall; a plurality of channel steel continuous beams are arranged between the cantilever continuous beams and the beam side formwork, a plurality of channel steel bearing beams are arranged between the channel steel continuous beams and the cantilever continuousbeams, inclined strut chan