Prefabricated reinforced concrete support body for fabricated building

The utility model provides a prefabricated reinforced concrete support body for an assembly type building, which belongs to the technical field of assembly type building systems and comprises a rhombic support body and a triangular support body. Main beam steel bar frameworks in the support body are bound to form square column holes, and the longitudinal main beams and the transverse main beams are connected with the square column holes to form a cross-shaped or T-shaped structure. Reinforced concrete is arranged between the longitudinal girders and the transverse girders, steel angle braces are arranged at the bottoms of the ends connected with the square column holes, first steel plates are arranged at the other ends of the ends connected with the square column holes, and the first steelplates are connected with I-shaped steel plates. The support body sleeves the upper end of the composite column through the square column hole, the main beam is connected with the I-shaped steel plate through the second stee