Fabric reinforced beams and beam connections

Details Fabric reinforced beams and beam connections Fabric reinforced beams and beam connections

E - Fixed Constructions

04

C

E04C 5/07 (2006.01) E01D 22/00 (2006.01) E02D 27/34 (2006.01) E02D 37/00 (2006.01) E04C 3/29 (2006.01) E04G 23/02 (2006.01)

Patent

CA 2225853

A technique for applying high strength fiber fabric to strengthen beams (12) and the connection between beams (12) and either supported platforms (10) or supporting vertical columns (14) is disclosed. Fabric made of high strength fibers such as glass, boron, or carbon, is laid over the connection between a beam (12) and a platform (10), or between a beam (12) and a supporting column (14), and impregnated with an epoxy resin or other polymer matrix. The fabric may be additionally fastened to the structural member using adhesives, fabric fasteners, or bolts. The invention is particularly well suited for retrofitting bridges, freeway overpasses, parking structures, and the like to prevent failure during an earthquake.

L'invention porte sur un procédé d'application de tissu en fibres à grande résistance destiné à consolider des poutres ainsi que les raccords entre poutres (12) et, soit des plates-formes soutenues (10), soit des colonnes verticales de soutien (14). On pose un tissu fait de fibres de grande résistance, telles que des fibres de verre, de bore ou de carbone, sur le raccord entre une poutre (12) et une plate-forme (10) ou entre une poutre (12) et une colonne de soutien (14) puis l'on imprègne ce tissu d'une résine époxy ou d'une autre matrice de polymère. Il est, en outre, possible d'assujettir le tissu à l'élément de structure au moyen d'adhésifs, d'attaches pour tissu ou de boulons. Cette invention est particulièrement indiquée pour la réhabilitation de ponts, de passages supérieurs d'autoroutes et de structures de parcage, etc., afin d'empêcher la survenue d'une défaillance lors d'un tremblement de terre.

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