E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 11/36 (2006.01) B28B 7/34 (2006.01) E04B 2/86 (2006.01) E04B 5/19 (2006.01) E04C 3/02 (2006.01) E04C 3/28 (2006.01) E04G 11/40 (2006.01)
Patent
CA 2324966
A ribbed concrete structural form using a series of lightweight extruded plastic structural formwork members for use in constructing ribbed concrete floor, ceiling, and roof slabs. The members comprise an elongate tubular conduit essentially rectilinear in cross-section, and formed by a pair of substantially parallel side walls, a floor, and a top. There is substantially centrally located a longitudinal interior horizontal web substantially parallel to the top and floor thereof, and extending between the parallel walls to form upper and lower passageways through the interior of the conduit. There is a vertical web parallel to the side walls, and extending from the interior horizontal web to the floor substantially centrally thereof to form a group of longitudinal spaces. There is also a first and second sloped web extending downwardly and outwardly in opposite directions at an angle acute to the intersection of the horizontal web and the vertical web with opposite ends of the sloped webs joining at the intersection of each lateral wall and the floor. The floor extends beyond the parallel side walls on each side to form substantially flat bottomed wing-like projections. The outer longitudinal edges of each wing include longitudinal mating connecting means arranged to seat in a sealing relationship when a plurality of the members are interconnected to form a slab. The sealing relationship is sufficiently impermeable to prevent the flow of constituents of the concrete being cast above them. There are a series of seats or chairs arranged to be placed over the connecting structure of an adjacent pair of wing edges in the sealing relationship and to support the reinforcing bars above the wings substantially parallel to support the connecting means.
Une structure de béton nervuré usant de coffrages légers en plastique extrudé pour la fabrication de dalles de béton nervuré pour planchers, murs et toitures. Les coffrages, qui comprennent un conduit tubulaire allongé dont la section transversale est essentiellement rectiligne, sont formés par deux murs parallèles, un plancher et un dessus. Une âme intérieure horizontale longitudinale, centrée entre le plancher et le dessus et parallèle à ceux-ci, relie les deux murs parallèles pour former un couloir supérieur et un couloir inférieur dans le conduit. Une âme verticale parallèle aux murs relie le centre de l'âme intérieure horizontale au plancher pour former un ensemble d'espaces longitudinaux. Deux âmes diagonales descendent en formant un angle aigu à l'intersection de l'âme horizontale et de l'âme verticale, chacune allant s'arrêter à l'intersection d'un mur et du plancher, à l'opposé l'une de l'autre. Le plancher se prolonge au-delà des murs parallèles et forme des ailes au dessous plat. Les rebords longitudinaux extérieurs des ailes sont dotés de connecteurs d'accouplement scellés dans le cas où plusieurs coffrages sont interconnectés pour former une dalle de béton. L'interconnexion scellée est suffisamment imperméable pour empêcher que le flux des composants du béton ne soit projeté au-dessus d'eux. La présente demande prévoit un ensemble de sièges placés sur la structure de connexion de deux rebords d'ailes contigus interconnectés afin de soutenir les barres de renforcement situées au-dessus des ailes et parallèles à celles-ci, ainsi que pour soutenir les interconnexions.
Ray Manuel A.
Blake Cassels & Graydon Llp
Ray T. Forms Inc.
LandOfFree
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