Grouting-free steel bar connecting structure and mounting method

The invention discloses a grouting-free steel bar connecting structure and a mounting method, and belongs to the technical field of fabricated constructions.The grouting-free steel bar connecting structure comprises a sleeve, two driving plates are slidably arranged in the sleeve, a plurality of clamping plates are slidably connected to the outer sides of the driving plates, the clamping plates are slidably connected with the sleeve, and the multiple clamping plates are matched to clamp and fix steel bars; and one side of the clamping plate is connected with an abutting assembly, and the clamping plate moves to drive the multiple abutting assemblies to move in a matched mode to abut against and limit the steel bars. When a reinforcing steel bar penetrates into a sleeve, the reinforcing steel bar abuts against a driving plate, the driving plate drives a plurality of clamping plates to move, the clamping plates move towards the reinforcing steel bar and enable a concave groove to make contact with the reinforci