Fabricated gate groove second-stage concrete construction method

The invention discloses a fabricated gate slot second-stage concrete construction method, and relates to the technical field of construction, the method comprises the following steps: in first-stage concrete, pre-burying a connecting rib assembly I, and welding the connecting rib assembly I with a main rib in the first-stage concrete; the assembly type second-stage concrete prefabricated part is prefabricated, and an embedded assembly is arranged in the second-stage concrete prefabricated part and at least comprises I-shaped steel and a second connecting rib assembly; the first-stage concrete and the fabricated second-stage concrete prefabricated component are connected through the first pre-buried connecting rib assembly and the second pre-buried connecting rib assembly; and the first set of sealing formworks and the second set of sealing formworks are installed, self-compacting concrete is poured, and after the strength of the concrete meets the specified requirement, the first set of sealing formworks and