Cable bridge for large span

The utility model discloses a cable bridge for a large span, and relates to the technical field of cable bridges. Comprising a bridge body, a cover plate, a connecting plate set and reinforcing ribs, the bridge body comprises a bottom plate and side plates fixed to the two sides of the bottom plate, the side plates are arranged in the length direction of the bottom plate, the bottom plate is of a double-layer structure internally provided with a cavity, and a plurality of V-shaped steel channels are arranged in the cavity of the bottom plate side by side in parallel; the V-shaped steel channels are arranged in the length direction of the bottom plate. The cover plate is in sliding connection with the bridge body, and the cover plate and the bottom plate are oppositely arranged; the multiple connecting plate sets are arranged in the bridge body side by side at intervals in the length direction of the bridge body, and the two ends of each connecting plate set are fixedly connected with the side plates respectiv