Cover beam sinking type support and construction method thereof

The invention discloses a bent cap sinking type support and a construction method thereof.The bent cap sinking type support comprises a bent cap and a bent cap support, the bent cap support comprises a steel hoop arranged on a pier column and a steel pipe pile stand column arranged on the road surface, and unloading sand boxes are arranged at the top of the steel pipe pile stand column and the top of the steel hoop 5; two Bailey girders are arranged at the top of the sand unloading box; a profile steel distribution beam is arranged at the top of the bailey main beam, a corresponding reverse hoisting system triangular truss is arranged below a chamfer of the cover beam, the reverse hoisting system triangular truss comprises a triangular truss structure and a reverse hoisting system, and the reverse hoisting system comprises lower bearing double-spliced 45 I-shaped steel, finish rolling deformed steel bars and upper bearing double-spliced 25 I-shaped steel. Relates to the technical field of bridge construction,