A flexible formwork assembly

E - Fixed Constructions – 04 – G

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Details

E04G 9/00 (2006.01) E02D 15/04 (2006.01) E04G 9/08 (2006.01)

Patent

CA 2174935

A flexible formwork assembly (11) into which concrete is delivered to form a concrete structure (10). The formwork assembly (11) includes flexible sheets (12, 13) suspended from a support assembly (18). The sheets (12, 13) surround a reinforcing cage (15). Fixed to the exterior of the sheets (12, 13) are stress distribution members (16), which stress distribution members (16) are arranged in pairs with the ties (17) extending therebetween. If so required, the reinforcing cage (15) can be used as the main frame or skeleton to hold and support the sheets (12, 13). Spacers (145) can be used to aid in maintaining the sheets (12, 13) in a desired position prior to pouring of the concrete. The formwork assembly (10) cam be supported on the reinforcing cage (15) so that the formwork (10) follows the general configuration defined by the reinforcing cage (15). In situ concreting of walls of most shapes and configurations under water is possible.

L'invention concerne un ensemble coffrage flexible (11) dans lequel le béton est versé pour former une structure en béton (10). Cet ensemble coffrage (11) comprend des feuilles flexibles (12, 13) suspendues à un ensemble support (18). Ces feuilles (12, 13) entourent une cage d'armature (15). Des organes (16) de répartition des contraintes sont fixés à l'extérieur des feuilles (12, 13), et sont placés par paires avec les attaches (17) qui s'étendent entre eux. Si nécessaire, la cage d'armature (15) peut être utilisée comme charpente ou ossature principale pour maintenir et supporter les feuilles (12, 13). On peut utiliser des entretoises (145) pour faciliter le maintien des feuilles (12, 13) dans une position requise avant de couler le béton. L'ensemble coffrage (10) peut être supporté par ladite cage (15) de sorte qu'il adopte la configuration générale définie par la cage d'armature (15). On peut effectuer sous l'eau un bétonnage in-situ de parois présentant diverses formes et configurations .

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