Fiber-reinforced 3D printing concrete beam with separated reinforcing bars

The invention provides a fiber-reinforced 3D printing concrete beam with separated reinforcing bars, which comprises a bottom protection layer, and a longitudinal bar mesh is arranged at the top end of the bottom protection layer along the length direction; the 3D printing concrete main body is arranged at the top end of the bottom protection layer, the 3D printing concrete main body is filled with hybrid fiber 3D printing concrete and wraps the longitudinal bar mesh, and a plurality of hole channels are reserved in the hybrid fiber 3D printing concrete; the multiple stirrups are correspondingly inserted into the hole channels respectively, and structural adhesives are filled between the hole channels and the stirrups for filling and fixing; the erection rib mesh is arranged at the top end of the 3D printing concrete main body in the length direction and is wrapped by the hybrid fiber 3D printing concrete; the top protection layer is arranged at the top end of the 3D printing concrete main body. The 3D printi