is a transverse section along plane ii ii of fig1 which evidences the constitution of the structure the supporting post being described consists of a body 1 whose configuration presents advantageously a vertical troncoconical form its cross section increases progressively in accordance with its resisting moment the support base 2 consists of a metal plate with holes for the insertion of the longitudinal rods the head of the post has at its top a cap or cover of polygonal or circular cross section 3 protecting that top and also a plate 4 which forms part of the column and on which are welded longitudinal rods 7 which constitute the resistant reinforcement the constitution of the post as seen in fig2 comprises a core 5 of ceramic material a metallic reinforcement formed as stated before by longitudinal steel rods 7 uniformly distributed and equidistant at the circumference the rods 7 are embedded in the peripheral mass of a settable polymeric material 8 which surrounds the core 5 a material which after hardening offers great resistance to compression the outer zone which constitutes the visible casing of the post consists of a covering 9 of pvc or other rigid polymer stable to light and resistant to the agents.