Fiber architecture for a composite pole

E - Fixed Constructions – 04 – C

Patent

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Details

E04C 3/30 (2006.01) E04C 3/36 (2006.01) E04H 12/02 (2006.01)

Patent

CA 2481553

A fiber architecture in the form of an elongate beam having a hollow polygonal cross section with a plurality of substantially flat exterior sides (38) and a corner (40) between each pair of adjacent exterior sides. The cross section is substantially thicker adjacent each corner (40). The fiber architecture includes a first fabric layer (152) extending around the beam, a layer of circumferential longitudinal rovings (54) extending around the beam adjacent the outside of the first fabric layer (152), corner longitudinal rovings (162) coterminous and integral with the outside of the circumferential rovings adjacent each corner, and a second fabric layer (50) extending around the beam adjacent the outside of the circumferential rovings (54) not covered by corner rovings (162). The fabric architecture may be impregnated with resin to form a composite pole that may be used as a utility pole (22).

L'invention concerne une architecture de fibres sous la forme de poutre allongée ayant une section polygonale creuse à plusieurs côtés extérieurs sensiblement plats (38) et un coin (40) entre chaque paire de côtés extérieurs contigus. La section transversale est sensiblement plus épaisse à proximité de chaque coin (40). L'architecture de fibres comporte une première couche de tissu (152) s'étendant autour de la poutre, une couche de stratifils longitudinaux circonférentiels (54) s'étendant autour de la poutre à proximité de l'extérieur de la première couche de tissu (152) , des stratifils longitudinaux d'angle (162) contigus à l'extérieur des stratifils circonférentiels et solidaires de ceux-ci à proximité de chaque coin, et une seconde couche de tissu (50) s'étendant autour de la poutre jouxtant l'extérieur des stratifils d'angle et l'extérieur des stratifils circonférentiels (54) non recouverts de stratifils d'angle (162) . L'architecture de tissu peut être imprégnée de résine pour former une perche composite pouvant servir de poteaux (22) de ligne.

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