Additional sidewall armature for a heavy goods vehicle tire

A tire comprising:

• a radial carcass reinforcement surmounted radially on the outside by a crown reinforcement, the carcass reinforcement being formed of a plurality of metal reinforcing elements coated in a rubber coating material, the reinforcing elements of the carcass reinforcement making an angle greater than 75° with the circumferential direction;
• beads adapted to be in contact with a mounting rim, the carcass reinforcement being anchored in said beads;
• and
• two sidewalls, each sidewall extending between a bead and the crown, at least one of the sidewalls comprising an additional reinforcement, wherein the additional reinforcement comprises, in the circumferential direction, a plurality of first parts and of second parts that have rupture strengths, that is to say, forces that rupture per unit width of reinforcement, that are such that the rupture strength of the second parts being lower than the rupture strength of the first parts, the first parts and the second parts being arranged such that they alternate in the circumferential direction, wherein the additional reinforcement extends in at least one of the sidewalls at least between a point situated radially on the inside of the axially outermost point of the profile of the carcass reinforcement of the tire mounted on its mounting rim and inflated to its working pressure, and a point situated in the vicinity of the axial end of the crown reinforcement, and wherein the additional reinforcement is positioned axially and radially on the inside of the carcass reinforcement.