Underpinning group frame for steel platform transformation construction

The utility model relates to an underpinning group frame for steel platform transformation construction, which comprises a pair of base mechanisms, supporting pieces and a cross beam, the base mechanisms are arranged at intervals, one side of each base mechanism is used for being fixedly connected with the ground, a driver is arranged in the middle of each base mechanism, and the driver drives the supporting piece at the upper part to lift and move; the supporting pieces are connected with the base mechanisms respectively, stabilizing mechanisms are arranged on the supporting pieces, make contact with the ground and are used for balancing the supporting pieces, and the lower ends of the cross beams are connected with the upper portions of the supporting pieces respectively. The column moving device is simple in material use, and has the advantages of improving the space utilization rate, providing stable support, being simple to assemble and splice on a construction site, improving the construction efficiency