E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 23/02 (2006.01) E04C 5/07 (2006.01) E04C 5/12 (2006.01)
Patent
CA 2490947
A device comprising a carbon-fibre sheet (4) for reinforcing support structures (1) is disclosed, said carbon-fibre sheet (4) terminating in an end fitting (3, 3'), whereby the ends of the carbon-fibre sheet (4) are provided with means for coupling (7) or with a bonding layer. The carbon-fibre sheet (4) lies pressed in the end fitting (3, 3') by means of at least one wedge (6, 6'). Coupling means (7) can take the form of glue, friction material with a particle size of 0.1 1.0 mm, a film provided with friction material, a powder coating or a plasma coating. Methods for reinforcement of support structures with said device, with or without pre-stressing are disclosed. The device is characterised in having a high flexibility on arrangement of the support structure for reinforcement and the methods is characterized by a rapid and very economical assembly.
L'invention concerne un dispositif comportant une lamelle CFK (4) destinée à renforcer des structures porteuses (1) et aboutissant dans un élément terminal (3, 3'), les extrémités de la lamelle CFK (4) étant pourvues d'éléments adhésifs (7) ou d'un pont adhésif. La lamelle CFK (4) est comprimée par une cale respective (6, 6') dans les éléments terminaux (3, 3'). Les éléments adhésifs (7)se présentent sous la forme de colles, d'un élément de friction présentant un grain de 0,1 à 1,0 mm, d'une pellicule pourvue d'un élément de friction, d'un revêtement pulvérulent ou d'un revêtement plasma. L'invention concerne également des procédés de renforcement de structures porteuses faisant intervenir le dispositif selon l'invention, avec ou sans précontrainte. Le dispositif selon l'invention se caractérise par une grande flexibilité de montage sur les structures porteuses devant être renforcées, et le procédé selon l'invention se caractérise par son coût réduit et la vitesse de montage.
Gowling Lafleur Henderson Llp
Schwegler Gregor
Sika Technology Ag
LandOfFree
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