Cast-in-place concrete structure template mounting support frame for flange plate of reinforced concrete composite beam

The utility model relates to the technical field of reinforced concrete composite beam construction, in particular to a cast-in-place concrete structure formwork installation supporting frame for a flange plate of a reinforced concrete composite beam. The supporting frame comprises a supporting frame body, the supporting frame body is of a right triangle structure formed by welding a horizontal connecting rod, a vertical connecting rod and an inclined rod, the upper end of the vertical connecting rod is connected with a top plate of the steel structure box girder, an adjusting rod sleeve is arranged at the lower end of the vertical connecting rod, an adjusting rod is arranged in the adjusting rod sleeve, and the vertical connecting rod is connected with a web of the steel structure box girder through the adjusting rod. A template joist is arranged above the horizontal connecting rod, and a template is arranged above the template joist. According to the cast-in-place reinforced concreteflange plate formwork, s