A tie rod for formwork

Details A tie rod for formwork A tie rod for formwork

E - Fixed Constructions

04

G

E04G 17/06 (2006.01) E04G 17/07 (2006.01)

Patent

CA 2665789

A tie rod (1) for joining opposite side sections (23a, 23b) of a casting formwork (21) , the tie rod (1) being provided with a mid portion (3) and two rod end portions (5a, 5b) and there being formed, in the transitions between the mid portion (3) and either rod end portion (5a, 5b) at least one abutment surface (7) which is arranged to rest supportingly on an internal side surface (23c) of the side sections (23a, 23b) , and the rod end portions (5a, 5b) including rests (9) for wedge devices (11) for securing the side sections (23a, 23b) of the casting formwork (21) , and the tie rod (1) including a stem (2) of great tensile strength and a surrounding mantle (2a), the mid portion (3) and the mantle (2a) of the stem (2) being formed as a continuous structure, the stem (2), the mantle (2a) and mid portion (3) being formed of non- corrosive materials.

La présente invention concerne une tige d~entretoise (1) servant à joindre des sections latérales opposées (23a, 23b) d~un coffrage de béton (21), la tige d~entretoise (1) étant dotée d~une partie médiane (3) et de deux parties d~extrémité de tige (5a, 5b). Dans les transitions entre la partie médiane (3) et l~une ou l~autre partie d~extrémité de tige (5a, 5b) au moins une surface de butée (7) est formée, ladite surface étant agencée pour reposer, de façon à réaliser un appui, sur une surface latérale interne (23c) des sections latérales (23a, 23b), les parties d~extrémité de tige (5a, 5b) comprenant des appuis (9) pour des dispositifs de cales (11) servant à fixer les sections latérales (23a, 23b) du coffrage de béton (21). La tige d~entretoise (1) ci-décrite comprend une barre (2) à forte résistance à la traction et une gaine (2a) l~enveloppant. La partie médiane (3) et la gaine (2a) de la barre (2) réalisent une structure continue et sont, tout comme la barre, réalisées en matériaux non corrosifs.

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