Main cable and side block anchoring structure reinforced by additional self-anchored suspension cable system of continuous beam bridge

The utility model discloses a main cable and side block anchoring structure reinforced by a continuous beam bridge additional self-anchoring suspension cable system, which comprises a main cable and a connecting piece which are respectively fixed on webs on two sides of a box beam in a transverse bridge direction; the outer anchor block is fixed to the box girder web and located on the side, close to the main cable, of the connecting piece, a protective sleeve is arranged in the outer anchor block, and the cable scattering end of the main cable penetrates through the protective sleeve to be fixedly connected with the connecting piece; and the connecting layer is poured in the cavity of the box girder, a prestressed part is arranged on the connecting layer in a penetrating mode, and the two ends of the prestressed part penetrate through the two outer anchor blocks correspondingly. Furthermore, one end of the main cable penetrates through the splay cable saddle to be divided into a plurality of splay cables, th