Steel-plastic composite cable bridge

The utility model discloses a steel-plastic composite cable bridge which comprises a first bridge and a second bridge, the first bridge and the second bridge are respectively provided with a PVC outer layer, a steel plate middle layer and a PVC inner layer from outside to inside, and the PVC outer layer and the PVC inner layer respectively cover the inner surface and the outer surface of the steel plate middle layer in a composite mode. The PVC outer layer and the PVC inner layer are both made of macromolecule polyvinyl chloride resin materials, and a connecting piece is arranged between the first bridge and the second bridge, the universality of the novel macromolecule alloy bridge in application occasions is further improved, short plates are supplemented, the novel macromolecule alloy bridge can be popularized in weak-current and large-span application occasions, a steel bridge is really replaced, and the novel macromolecule alloy bridge can be widely used. And maintenance is avoided, resources and cost ar