Preset assembly type bracket for bridge 0 # block pouring and construction method

The invention discloses a preset assembly type bracket for bridge 0 # block pouring and a construction method, and is suitable for the technical field of bridge 0 # block construction. Bracket steel boxes are symmetrically embedded in the two side walls of a pier body of a bridge pier in the upward direction of the bridge, opposite-pull-rod hole channels are reserved, triangular brackets arranged on the two side walls of the pier body are oppositely pulled through pull rods penetrating through the opposite-pull-rod hole channels, the upper end and the lower end of each triangular bracket are connected through a hanging base, and each hanging base comprises a hanging base body; a bracket shear key is arranged on the outer side of the hanging seat body, the bracket shear key is inserted into the bracket steel box in a matched mode, a bracket assembly is arranged over the hanging seat body, a through hole corresponding to the opposite-pull-rod hole channel is transversely formed in the bracket assembly, and a pu