Panels for the manufacture of circular above-ground tanks,...

E - Fixed Constructions – 04 – C

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E04C 2/04 (2006.01) B65D 90/02 (2006.01) E04C 2/38 (2006.01) E04H 4/00 (2006.01) E04H 7/02 (2006.01) E04H 7/28 (2006.01)

Patent

CA 2173386

Reinforced concrete panel for the manufacture of aboveground circular tanks, of the type comprising a wall (1) fitted with a number of horizontal stiffening ribs (3) which contain holes for the passage of pre-stressing cables, wherein the said wall is flat and the said holes are arc-shaped, and a method of manufacture of said panels comprising the following stages: - insertion of a flexible tubular element (11), of the same length as an arc which presents a radius equal to the radius of the tank and a chord equal to the width of the panel, into a mould with mobile sides (8, 9), on a pair of pegs (10) fitted to the sides at the horizontal ribs of the panel; approach of the mobile sides until the mould closes, so that the said flexible tubular element takes on the arc shape required; installation of reinforcement and laying of concrete; concrete shaving; curing and removal of finished product.

Panneau en béton armé pour la fabrication de réservoirs circulaires hors sol, de type comprenant une paroi (1) munie d'un certain nombre de raidisseurs horizontaux (3) dans lesquels ont été ménagés des trous pour le passage de câbles de précontrainte, ladite paroi étant plate et lesdits trous étant en forme d'arc. Est également l'objet de l'invention une méthode de fabrication desdits panneaux comprenant les étapes ci-après : insertion d'un élément tubulaire flexible (11) de la même longueur qu'un arc de rayon égal au rayon du réservoir, et de corde égale à la largeur du panneau, dans un moule avec parois mobiles (8, 9), sur une paire de piquets (10) fixés sur les côtés des nervures horizontales du panneau; approche des parois mobiles jusqu'à ce que le moule soit fermé, de sorte que ledit élément tubulaire flexible prenne la forme arquée requise; installation de l'armature et coulage du béton, arasage du béton, cure et enlèvement du produit fini

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