Steel structure supporting frame of building engineering

The invention discloses a steel structure supporting frame of building engineering. The steel structure supporting frame comprises a main supporting frame, an auxiliary supporting frame I and an auxiliary supporting frame II. The auxiliary supporting frame I and the auxiliary supporting frame II are mounted on the left side and the right side of the main supporting frame respectively. The main supporting frame, the auxiliary supporting frame I and the auxiliary supporting frame II are arranged in a split manner. The main supporting frame comprises a bottom plate, a mounting frame is mounted inthe middle of the upper end of the bottom plate, a rotating shaft is rotatably connected to the top end of the mounting frame through a shaft sleeve, and the lower end of the rotating shaft is rotatably connected with the bottom plate through a bearing. A slave gear is arranged on the rotating shaft and located in the mounting frame, a motor is arranged on the bottom plate and located in the mounting frame, a main gear i