Hanging basket construction method for concrete main beam and steel cross beam combined structural beam

The invention discloses a hanging basket construction method for a concrete main beam and steel cross beam combined structural beam. The construction method includes the following steps that S1, a hanging basket platform is assembled in a site, and a hanging basket is lifted to the bottom of a beam and fixed on a poured beam section in an anchored mode; S2, the hanging basket is moved forwards to a next to-be-poured section through an anchor system; S3, the hanging basket platform is lifted to the bottom of the beam and the elevation is adjusted; S4, a thrust stop block on the hanging basket platform is subjected to be tightly attached to a welded counterforce seat top to top so as to jointly bear the backward horizontal thrust of the hanging basket; S5, a bottom formwork and a side formwork in a suspended poured section are assembled, a steel cross beam is hoisted in position, a stayed-cable is hung and a first cable force tension is conducted; S6, a second tension is conducted on the stayed-cable in the concrete pouring process of the section; after the concrete pouring of the section is completed, the pre-stressing force of a beam body is tensioned, and mud jacking is conducted; and S7, a bridge floor precast slab is hoisted, and a third tension of the stayed-cable is completed, and the hanging basket is moved forward to a next construction section. According to the construction method, construction can be conducted on a wide flange bilateral concrete main beam and steel cross beam combined structural beam by using a fore-fulcrum led cable hanging basket.