Support structure for vertical cross construction of steel box girders

The utility model discloses a steel box girder vertical crossing construction support structure which comprises a first support module, a bearing beam and a second support module, the first support module comprises a plurality of first stand columns, a plurality of first parallel connection steel channels and a plurality of first inclined struts, and the first parallel connection steel channels are welded between every two adjacent first stand columns correspondingly; a plurality of first inclined struts are welded to the welding positions between the first parallel connection channel steel and the first stand columns correspondingly, supporting I-shaped steel is installed on the upper portion of the bearing beam, a U-shaped bottom layer steel box beam section is erected on the upper portion of the supporting I-shaped steel, and a distribution beam is erected on the upper portion of the U-shaped bottom layer steel box beam section; the second support module comprises a plurality of second stand columns, a plu