Fabricated replaceable beam-column connecting joint structure

The invention relates to the technical field of buildings, in particular to an assembly type replaceable beam-column connecting joint structure which comprises a beam-column joint connecting component, a replaceable beam end connecting piece, a prefabricated beam, a prefabricated upper column and a prefabricated lower column, the beam-column joint connecting component is pre-buried at the upper end of the prefabricated lower column, and the prefabricated upper column is arranged at the upper end of the prefabricated lower column; replaceable beam end connecting pieces are detachably connected to the two sides of the beam-column joint connecting component, and the tail ends of the replaceable beam end connecting pieces are detachably connected with the precast beams respectively. The structure is novel in design and convenient to construct and operate, the joint beam end connecting piece can be replaced, the stress performance and the anti-seismic performance of the beam-column connecting joint are good, and i