Combined structure tire bead for engineering giant tire

The invention provides a combined structure tire bead for an engineering giant tire. Each core ring is a circular section and comprises a core wire and an outer winding wire, wherein the core wires are connected by butt welding; one layer or a plurality of layers of the outer winding wires are arranged and are spirally wound on the core wires along a certain direction; a plurality of the core rings are arrayed according to a certain rule to form a core part of the combined tire bead; the winding directions of the adjacent layers of the outer winding wires are opposite; the tail ends of the outer winding wires are fixed by copper rings; all layers of connectors are connected by the necking-down copper rings; the adjacent layers of the outer winding wires are wound in the same direction and the winding is realized on a ring core winding machine; and a plurality of the core rings are arrayed and a combined core part is fastened and molded. The combined structure tire bead for the engineering giant tire has the advantages that the parallel core rings which are spirally wound are stably supported and can bear complicated alternating load and impact load; the stress concentration of the tire bead and a tire body cord thread is eliminated and the damage to the tire body cord thread is reduced; and the support is stable and the tire deflection is reinforced.