Clip-on connection system for stay-in-place form-work

Details Clip-on connection system for stay-in-place form-work Clip-on connection system for stay-in-place form-work

E - Fixed Constructions

04

B

E04B 2/86 (2006.01) E04G 11/06 (2006.01)

Patent

CA 2751610

A stay-in-place form-work for casting a concrete structure comprises a plurality of elongate panels in edge-to-edge relationship via complementary connector components on their longitudinal edges to define at least a portion of a perimeter of the form-work. The panels include a first panel having a first connector component incorporating a receptacle, and a second panel having a second connector component incorporating a protrusion. The first and second panels are connectable to one another in edge-to-edge relationship by: effecting a loose-fit connection by extending the protrusion of the second connector component into the receptacle of the first connector component; loosely seating a clip onto the first and second connector components; and pushing the clip against the first and second connector components to reach a locked configuration wherein restorative deformation forces associated with the clip act to retain the first and second connector components in the locked configuration.

Selon l'invention, un coffrage perdu pour coulage d'une structure en béton comporte une pluralité de panneaux allongés interconnectables bord à bord par l'intermédiaire de composants de raccordement complémentaires sur leurs bords longitudinaux, pour définir au moins une partie d'un périmètre du coffrage. Les panneaux comprennent un premier panneau comportant un premier composant de raccordement incorporant un réceptacle, et un second panneau comportant un second composant de raccordement incorporant une partie en saillie. Les premier et second panneaux peuvent être reliés l'un à l'autre bord à bord en procédant comme suit : effectuer un raccordement de présentation en introduisant la partie en saillie du second composant de raccordement dans le réceptacle du premier composant de raccordement ; présenter une pièce d'attache sur les premier et second composants de raccordement ; et pousser l'attache contre les premier et second composants de raccordement pour obtenir une configuration verrouillée dans laquelle les forces de déformation de restauration liées à l'attache agissent pour retenir les premier et second composants de raccordement dans la configuration verrouillée.

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