Fibrous reinforcement for the manufacture of a composite part intended to be articulated with other parts

A method for manufacturing a fibrous reinforcement of a composite material part, comprising:

• positioning a woven fibrous belt texture on a fibrous preform of a core portion of a fibrous reinforcement for a composite material part, the preform having an elongated shape along a longitudinal direction, the preform comprising two longitudinal ends intended for articulation with other parts and a median area located between the longitudinal ends, each longitudinal end having a thickness greater than a thickness of the median area, the median area comprising a stiffening segment comprising first yarns that are non-woven on the stiffening segment and extending along the longitudinal direction, each longitudinal end comprising a three-dimensional weave of said first yarns that are non-woven on the stiffening segment with second yarns that are transverse to the first yarns, the woven fibrous belt texture defining a loop around the preform of the core portion so as to define, at the longitudinal ends, free spaces intended for articulation with other parts.