GIS outgoing line framework with two loops and one span

The utility model discloses a GIS outgoing line framework with two loops and one span, which comprises first framework columns, second framework columns and cross rods, the tops of the second framework columns are connected with the rod bodies of the first framework columns through the cross rods, the tops of the plurality of first framework columns are connected with an upper layer framework beam, and the tops of the plurality of second framework columns are connected with a middle layer framework beam; the rod bodies of the upper-layer framework beam and the middle-layer framework beam are respectively connected with a plurality of cantilever frame beams; the fixed ends of the plurality of cantilever frame beams are vertically and fixedly connected with the rod body of the upper-layer framework beam, and the extending ends extend freely; the upper-layer framework beam comprises a plurality of sub-framework beams and connecting mechanisms, the sub-framework beams are connected throughthe connecting mechanism