Basement assembly type prefabricated superposed beam

A basement assembly type prefabricated superposed beam comprises beam columns, the interior of each beam column is hollow to form a channel, a front connector is arranged at one end of each channel and used for connecting the two beam columns, a rear connector is arranged at the end, corresponding to the front connector, of each channel, the rear connectors and the front connectors can be connected together, then the two superposed beams are fixed, and the splicing function can be achieved. The lifting hook devices are arranged at the upper ends of the beam columns, so that a crane can lift the superposed beams more easily, the number of the lifting hook devices is three, the three lifting hook devices are connected to the surfaces of the upper portions of the beam columns at equal intervals, when the superposed beams are lifted, uniform stress of the beam columns can be achieved, and the reinforcing devices are arranged in the channels and can reinforce the beam column structures; deformation and fracture ar