Anchoring, splicing and tensioning elongated reinforcement...

E - Fixed Constructions – 01 – D

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Details

E01D 19/16 (2006.01) E01D 11/00 (2006.01) E04C 5/12 (2006.01) E04G 21/12 (2006.01)

Patent

CA 2727295

Anchoring devices and systems are disclosed for use with elongated reinforcement members such as FRP, SRP, metallic bars, or cables. Such devices and systems impart a compressive stress into a static structure having the elongated reinforcement member running there through or there along. An anchoring system can include an anchor block that includes a front end surface for contacting the static structure, an axial bore for receiving the elongated reinforcement member, and clamping members that work with fasteners to provide a clamping force. The bore may be tapered and the fasteners optionally provide different clamping levels to reduce the stress on the elongated reinforcement member near the front end surface. The disclosed systems also include pre-stressing devices that can be used with the disclosed anchor systems, and that can place a tensile force on the elongated reinforcement members to also impart a compressive force on the static structure.

Linvention concerne des dispositifs et systèmes dancrage destinés à être utilisés avec des éléments de renforcement allongés, tels que FRP, SRP, barres métalliques ou câbles. Ces dispositifs et systèmes fournissent une contrainte de compression dans une structure statique le long de laquelle ou à travers laquelle est agencé lélément de renforcement allongé. Un système dancrage peut comprendre un bloc dancrage qui comprend une surface dextrémité avant destinée à venir en contact avec la structure statique, un alésage axial destiné à recevoir lélément de renforcement allongé, et des éléments de serrage qui coopèrent avec des éléments de fixation pour fournir une force de serrage. Lalésage peut être conique et les éléments de fixation offrent éventuellement différents niveaux de serrage, afin de réduire la contrainte sur lélément de renforcement allongé à proximité de la surface dextrémité avant. Les systèmes selon linvention comprennent également des dispositifs de précontrainte pouvant être utilisés avec les systèmes dancrage mentionnés, et pouvant placer une force de traction sur les éléments de renforcement allongés, afin de conférer également une force de compression à la structure statique.

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