EP1114896A1 - System for fastening a reinforcement strip to a retaining wall and apparatus for positioning the system - Google Patents

System for fastening a reinforcement strip to a retaining wall and apparatus for positioning the system Download PDF

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Publication number
EP1114896A1
EP1114896A1 EP01400010A EP01400010A EP1114896A1 EP 1114896 A1 EP1114896 A1 EP 1114896A1 EP 01400010 A EP01400010 A EP 01400010A EP 01400010 A EP01400010 A EP 01400010A EP 1114896 A1 EP1114896 A1 EP 1114896A1
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EP
European Patent Office
Prior art keywords
handles
loop
wall
strip
template
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Granted
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EP01400010A
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German (de)
French (fr)
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EP1114896B1 (en
Inventor
Pierre Orsat
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Freyssinet International STUP SA
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Freyssinet International STUP SA
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Publication of EP1114896A1 publication Critical patent/EP1114896A1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements

Definitions

  • the invention relates to a system for attaching a reinforcing strip to a wall of a reinforced retaining structure.
  • Such works by support are provided in the event of embankment, or even excavation, in the area construction of roads, wharves, highways, buildings and others achievements of the building sector and public works.
  • Support structures reinforced with backfill, or cut include a facing wall, usually concrete, and between the solid located at the rear and the facing wall, a specific embankment, made of material granular, reinforced by linear reinforcing bands, extending in a plurality of superimposed horizontal planes.
  • the reinforcing strips of reinforcement are fixed to the facing wall via a system of attachment.
  • a fastening system comprising a pin winding of the reinforcing strip, mounted in two loops, or handles, of attachment, in plasticized and galvanized steel.
  • the two handles are sealed in the facing wall and coupled by a metal connecting rod, embedded in the wall, ensuring good anchoring of the handles in the wall.
  • fasteners of this type are at risk corrosion, in particular of the coupling rod of the two handles.
  • the present invention proposes to overcome this drawback.
  • the invention relates to a system for attaching a strip. of reinforcement to a wall of a reinforced retaining structure, comprising a support for winding the reinforcing strip and two fixing handles for the winding support on the wall, characterized in that the two handles are formed from a loop of non-corrodible material.
  • the two handles extend each other continuously.
  • the loop of non-corrodible material, partially embedded in the wall, guarantees good anchoring of the handles, without any risk of corrosion.
  • the loop is made of plastic material.
  • the loop may include a polyester fiber core, which provides the mechanical strength of the strip.
  • the loop comprises a polyethylene sheath.
  • the wall of the retaining structure, in which the loop of the fastening system is partially embedded, is usually made of concrete.
  • the concrete is an alkaline medium which can damage polyester fibers.
  • the polyethylene sheath protects the core in polyester fibers.
  • the loop is formed from a strip rolled up on itself.
  • the handles comprise the two ends of the strip.
  • polyester loop at both ends of the band Thanks to this, the risks of deterioration of the fiber core are avoided. polyester loop at both ends of the band.
  • the invention also relates to a device for installing the system. of attachment, explained above, to a wall of a retaining structure reinforced, including a loop shaping and training template of the two handles.
  • means are provided for positioning the two handles along the template.
  • means are provided to ensure the parallelism between two branches of each handle.
  • the fastening system of the invention is intended to fasten a strip of reinforcement to a facing wall of a retaining structure, such as that represented in FIG. 1.
  • This structure which supports a massif 1, includes, between the facing wall 2 and the solid block 1, a specific embankment 3 reinforced by 4-6 reinforcement strips, which extend in a plurality of planes superimposed.
  • the wall 2 is constituted by the assembly of a plurality of panels.
  • Each 4-6 reinforcement strip goes back and forth, "zig-zag", between a deflection bar 7-9, located near the block 1, and the facing wall 2, to which it is attached using the fastening system which will now be described.
  • the fastening system includes a support 10 for winding an armature strip 4, or "pin", and two handles 11a, 11b for fixing the winding support 10 to the wall 2, projecting from the wall 2.
  • the handles 11a, 11b perpendicular to the wall 2 and facing one of the other, are spaced a distance less than the length of the pin 10.
  • Each handle 11a (11b) comprises two branches 13a, 14a (13b, 14b) substantially parallel and connected by a curved portion 15a (15b).
  • the distance between the two branches 13a, 14a (13b, 14b) of a handle 11a (11b) is substantially equal to the diameter of the pin 10.
  • the two handles 11a, 11b are formed from a basic loop 16. This loop 16, laid flat, has a generally oval shape and includes two parallel portions connected between them by two U-shaped connecting portions.
  • the two connection portions are raised, the loop 16 thus generally and naturally in the form of a gondola.
  • the loop 16 is partially embedded in the wall 2, from which it projects by the two handles 11a, 11b. These are thus extend each other by two loop portions, embedded in the wall 2. Thanks to the fact that the two handles are part of the same piece and are not so not isolated from each other, the loop portions, joining the two handles and embedded in the concrete, secure the fastening system to an interesting portion of the wall of the retaining structure. So the loop portions embedded in the concrete ensure excellent anchoring of handles 11a, 11b in the wall 2.
  • the loop 16 is formed from a partially wound strip on itself and whose two ends 17, 18 are welded to the strip.
  • the strip is made of non-corrodible plastic material. She understands a soul in polyester fibers, with high mechanical strength, in particular tensile strength, surrounded by a polyethylene protective sheath. The sheath is intended for protect the polyester fiber core from the alkalinity of the concrete in wall 2 and from the aggressiveness of the embankment used.
  • the two handles 11a, 11b respectively comprise the two ends 17, 18 of the strip, which are thus outside the wall 2. Thanks to this, the web of the strip does not risk being damaged at the level of the ends 17, 18 due to the alkalinity of the concrete.
  • the winding support 10 also called a pin, is a rod cylindrical. It is fixed to the wall 2 by passing through the two handles 11a, 11b. A reinforcing strip 4 is intended to be wrapped around the pin 10, on a half-turn, as shown in FIG. 2.
  • This device 20 comprises a cylindrical bar 21, substantially of same shape as pin 10, forming template for loop configuration 16 and forming the two handles 11a, 11b.
  • Two pairs of flanges, or annular flanges, 22a, 23a, 22b, 23b, intended to position the handles 11a, 11b along the template 21, are mounted on the template 21 and integral with it.
  • Each handle 11a (11b) is intended for be blocked laterally, along the template 21, between the two flanges 22a, 23a (22b, 23b) of a pair of flanges, the spacing between the two pairs of flanges 22a, 23a, 22b, 23b thus defining the spacing between the two handles 11a, 11b.
  • the laying device 20 also includes two spacers 24a, 24b, integral with the template 21, and two clips 25a, intended to press the handles 11a, 11b against the spacers 24a, 24b in order to ensure the parallelism between the branches 13a, 14a, 13b, 14b, handles 11a, 11b, at least a distance equal to the diameter of the pin 10.
  • the spacers 24a, 24b are integral with the template 21. Each spacer 24a (24b) extends between the two flanges 22a, 23a (22b, 23b) of a pair of flanges, below the template 21, as shown in Figure 5.
  • the two spacers 24a, 24b being identical, only one will now be described.
  • the spacer 24a has the overall shape of a rectangular parallelepiped comprising two lateral bearing surfaces 27a, 28a, parallel to the axis longitudinal of the template 21, and an upper surface providing a cavity 28a for receiving the template 21.
  • the distance separating the two bearing surfaces 27a, 28a is substantially equal to the distance between the two branches 13a, 14a handle 11a.
  • Each clip 25a comprises two support arms 29a, 30a, elastically deformable, extending from each other and provided with two free ends support curved outwards.
  • the two support arms 29a, 30a are intended to press the two arms by their curved free ends 13a, 14a of the handle 11a against the two bearing surfaces 27a, 28a of the spacer 24a, in order to ensure parallelism between the two branches 13a, 14a of the handle 11a and to maintain the loop 16 conformed during the installation of the system of attachment.
  • the concrete panels constituting the wall 2 are manufactured by flat molding.
  • the device When manufacturing a panel, the device is positioned laying 20 above the mold, the spacers 24a, 24b extending below of the template 21, and it blocks the template 21 in rotation. We then take the loop 16, not yet shaped.
  • the loop 16 is conformed by applying it against the upper part of the template 21, between the two flanges 22a, 23a a pair of flanges, and against the bearing surfaces 26a, 27a of the spacer 24a.
  • the clip 25a is then placed by straddling it on the template 21, by a vertical downward movement between the two flanges 22a, 23a.
  • Both arm 29a, 30a of clip 25a press and hold, by their ends free curved, the two branches 13a, 14a of the handle 11a against the two bearing surfaces 26a, 27a of the spacer 24a, thereby ensuring parallelism between the two branches 13a, 14a.
  • the clips 25a block handles 11a, 11b and thus prevent any movement of handles 11a, 11b that either up or down.
  • the base band, from which the handles 11a, 11b are formed, was implicitly flexible in the description which has just been made. We could imagine a fastening system using a loop of rigid material or semi-rigid.

Abstract

The reinforcing strip holder consists of a rod (10) fastened to the back of the retaining wall (2) by a strip (16) of a plastic material with looped ends (11A, 11B) for the rod. The strip can be fitted to the retaining wall using a template with flanges for the loops and a spacer to ensure the loop ends are parallel.

Description

L'invention concerne un système d'attache d'une bande d'armature à une paroi d'un ouvrage de soutènement renforcé. De tels ouvrages de soutènement sont prévus en cas de remblais, voire de déblais, dans le domaine de la construction de routes, de quais, d'autoroutes, de bâtiments et autres réalisations du secteur de bâtiment et des travaux publics.The invention relates to a system for attaching a reinforcing strip to a wall of a reinforced retaining structure. Such works by support are provided in the event of embankment, or even excavation, in the area construction of roads, wharves, highways, buildings and others achievements of the building sector and public works.

Les ouvrages de soutènement renforcé de remblai, ou de déblai, comprennent un mur de parement, généralement en béton, et, entre le massif situé à l'arrière et le mur de parement, un remblai spécifique, en matériau granulaire, renforcé par des bandes d'armature linéaires, s'étendant dans une pluralité de plans horizontaux superposés. Les bandes d'armature de renforcement sont fixées au mur de parement par l'intermédiaire d'un système d'attache.Support structures reinforced with backfill, or cut, include a facing wall, usually concrete, and between the solid located at the rear and the facing wall, a specific embankment, made of material granular, reinforced by linear reinforcing bands, extending in a plurality of superimposed horizontal planes. The reinforcing strips of reinforcement are fixed to the facing wall via a system of attachment.

On connaít un système d'attache comportant une goupille d'enroulement de la bande d'armature, montée dans deux boucles, ou anses, d'attache, en acier plastifié et galvanisé. Les deux anses sont scellées dans le mur de parement et couplées par une tige métallique de liaison, noyée dans le mur, assurant un bon ancrage des anses dans le mur.We know a fastening system comprising a pin winding of the reinforcing strip, mounted in two loops, or handles, of attachment, in plasticized and galvanized steel. The two handles are sealed in the facing wall and coupled by a metal connecting rod, embedded in the wall, ensuring good anchoring of the handles in the wall.

Toutefois, les systèmes d'attache de ce type sont exposés à un risque de corrosion, notamment de la tige de couplage des deux anses.However, fasteners of this type are at risk corrosion, in particular of the coupling rod of the two handles.

La présente invention propose de pallier cet inconvénient.The present invention proposes to overcome this drawback.

A cet effet, l'invention concerne un système d'attache d'une bande d'armature à une paroi d'un ouvrage de soutènement renforcé, comportant un support d'enroulement de la bande d'armature et deux anses de fixation du support d'enroulement à la paroi, caractérisé par le fait que les deux anses sont formées à partir d'une boucle en matériau non corrodable.To this end, the invention relates to a system for attaching a strip. of reinforcement to a wall of a reinforced retaining structure, comprising a support for winding the reinforcing strip and two fixing handles for the winding support on the wall, characterized in that the two handles are formed from a loop of non-corrodible material.

Ainsi, les deux anses se prolongent l'une l'autre de façon continue. La boucle en matériau non corrodable, partiellement noyée dans la paroi, garantit un bon ancrage des anses, sans aucun risque de corrosion.Thus, the two handles extend each other continuously. The loop of non-corrodible material, partially embedded in the wall, guarantees good anchoring of the handles, without any risk of corrosion.

Avantageusement, la boucle est en matériau plastique.Advantageously, the loop is made of plastic material.

La boucle peut comprendre une âme en fibres de polyester, qui assure la résistance mécanique de la bande.The loop may include a polyester fiber core, which provides the mechanical strength of the strip.

De préférence, la boucle comprend une gaine en polyéthylène. Preferably, the loop comprises a polyethylene sheath.

La paroi de l'ouvrage de soutènement, dans laquelle la boucle du système d'attache est partiellement noyée, est généralement en béton. Or, le béton est un milieu alcalin qui risque de détériorer les fibres en polyester. La gaine en polyéthylène permet de protéger l'âme en fibres de polyester.The wall of the retaining structure, in which the loop of the fastening system is partially embedded, is usually made of concrete. However, the concrete is an alkaline medium which can damage polyester fibers. The polyethylene sheath protects the core in polyester fibers.

Avantageusement encore, la boucle est formée à partir d'une bande enroulée sur elle-même.Advantageously also, the loop is formed from a strip rolled up on itself.

De préférence, les anses comprennent les deux extrémités de la bande.Preferably, the handles comprise the two ends of the strip.

Grâce à cela, on évite les risques de détérioration de l'âme en fibres de polyester de la boucle au niveau des deux extrémités de la bande.Thanks to this, the risks of deterioration of the fiber core are avoided. polyester loop at both ends of the band.

L'invention concerne encore un dispositif de pose du système d'attache, explicité ci-dessus, à une paroi d'un ouvrage de soutènement renforcé, comprenant un gabarit de conformation de la boucle et de formation des deux anses.The invention also relates to a device for installing the system. of attachment, explained above, to a wall of a retaining structure reinforced, including a loop shaping and training template of the two handles.

Avantageusement, il est prévu des moyens de positionnement des deux anses le long du gabarit.Advantageously, means are provided for positioning the two handles along the template.

Avantageusement encore, il est prévu des moyens pour assurer le parallélisme entre deux branches de chaque anse.Advantageously also, means are provided to ensure the parallelism between two branches of each handle.

A titre de produit intermédiaire, l'invention concerne également un ensemble de deux anses de fixation pour le système d'attache, explicité plus haut, caractérisé par le fait que les deux anses sont formées à partir d'une boucle en matériau non corrodable.

  • L'invention sera mieux comprise à l'aide de la description suivante d'une forme de réalisation particulière du système d'attache et de son dispositif de pose de l'invention, en référence au dessin annexé sur lequel:
  • la figure 1 représente une vue en perspective d'un ouvrage de soutènement;
  • la figure 2 représente une vue en perspective du système d'attache de l'invention fixé sur une paroi;
  • la figure 3 représente une vue en perspective du système d'attache de la figure 2, sans la paroi;
  • la figure 4 représente une vue de côté du système d'attache de la figure 2;
  • la figure 5 représente une vue en perspective du dispositif de pose du système d'attache de la figure 2 et
  • la figure 6 représente une vue en coupe transversale du dispositif de pose de la figure 5, le long de la ligne VI-VI.
As an intermediate product, the invention also relates to a set of two fixing handles for the fastening system, explained above, characterized in that the two handles are formed from a loop of non-corrodible material.
  • The invention will be better understood using the following description of a particular embodiment of the fastening system and its fitting device of the invention, with reference to the appended drawing in which:
  • Figure 1 shows a perspective view of a retaining structure;
  • Figure 2 shows a perspective view of the fastening system of the invention fixed to a wall;
  • Figure 3 shows a perspective view of the fastening system of Figure 2, without the wall;
  • Figure 4 shows a side view of the fastening system of Figure 2;
  • FIG. 5 represents a perspective view of the device for fitting the fastening system of FIG. 2 and
  • 6 shows a cross-sectional view of the laying device of Figure 5, along the line VI-VI.

Le système d'attache de l'invention est destiné à attacher une bande d'armature à une paroi de parement d'un ouvrage de soutènement, tel que celui représenté sur la figure 1. Cet ouvrage, qui soutient un massif 1, comprend, entre la paroi de parement 2 et le massif 1, un remblai spécifique 3 renforcé par des bandes d'armatures 4-6, qui s'étendent dans une pluralité de plans superposés. La paroi 2 est constitué par l'assemblage d'une pluralité de panneaux. Chaque bande d'armature 4-6 fait des aller-retour, en "zig-zag", entre une barre de renvoi 7-9, située près du massif 1, et la paroi de parement 2, à laquelle elle est attachée à l'aide du système d'attache qui va maintenant être décrit.The fastening system of the invention is intended to fasten a strip of reinforcement to a facing wall of a retaining structure, such as that represented in FIG. 1. This structure, which supports a massif 1, includes, between the facing wall 2 and the solid block 1, a specific embankment 3 reinforced by 4-6 reinforcement strips, which extend in a plurality of planes superimposed. The wall 2 is constituted by the assembly of a plurality of panels. Each 4-6 reinforcement strip goes back and forth, "zig-zag", between a deflection bar 7-9, located near the block 1, and the facing wall 2, to which it is attached using the fastening system which will now be described.

En référence à la figure 2, le système d'attache comprend un support 10 d'enroulement d'une bande d'armature 4, ou "goupille", et deux anses 11a, 11b de fixation du support d'enroulement 10 à la paroi 2, en saillie hors de la paroi 2.Referring to Figure 2, the fastening system includes a support 10 for winding an armature strip 4, or "pin", and two handles 11a, 11b for fixing the winding support 10 to the wall 2, projecting from the wall 2.

Les anses 11a, 11b, perpendiculaires à la paroi 2 et en regard l'une de l'autre, sont écartées d'une distance inférieure à la longueur de la goupille 10. Chaque anse 11a (11b) comprend deux branches 13a, 14a (13b, 14b) sensiblement parallèles et reliées par une partie recourbée 15a (15b). La distance entre les deux branches 13a, 14a (13b, 14b) d'une anse 11a (11b) est sensiblement égale au diamètre de la goupille 10. Les deux anses 11a, 11b sont formées à partir d'une boucle de base 16. Cette boucle 16, mise à plat, a une forme globalement ovale et comprend deux portions parallèles reliées entre elles par deux portions de raccordement en "U". Pour former les deux anses 11a, 11b, les deux portions de raccordement sont relevées, la boucle 16 ayant ainsi globalement, et de façon naturelle, la forme d'une gondole. Comme on peut le voir sur la figure 4, la boucle 16 est partiellement noyée dans la paroi 2, dont elle fait saillie par les deux anses 11a, 11b. Celles-ci se prolongent ainsi l'une l'autre par deux portions de boucle, noyées dans la paroi 2. Grâce au fait que les deux anses font partie d'une même pièce et ne sont donc pas isolées l'une de l'autre, les portions de boucle, réunissant les deux anses et noyées dans le béton, assurent une fixation du système d'attache sur une portion intéressante de la paroi de l'ouvrage de soutènement. Ainsi, les portions de boucle noyées dans le béton assurent un excellent ancrage des anses 11a, 11b dans la paroi 2.The handles 11a, 11b, perpendicular to the wall 2 and facing one of the other, are spaced a distance less than the length of the pin 10. Each handle 11a (11b) comprises two branches 13a, 14a (13b, 14b) substantially parallel and connected by a curved portion 15a (15b). The distance between the two branches 13a, 14a (13b, 14b) of a handle 11a (11b) is substantially equal to the diameter of the pin 10. The two handles 11a, 11b are formed from a basic loop 16. This loop 16, laid flat, has a generally oval shape and includes two parallel portions connected between them by two U-shaped connecting portions. To form the two handles 11a, 11b, the two connection portions are raised, the loop 16 thus generally and naturally in the form of a gondola. As can be seen in Figure 4, the loop 16 is partially embedded in the wall 2, from which it projects by the two handles 11a, 11b. These are thus extend each other by two loop portions, embedded in the wall 2. Thanks to the fact that the two handles are part of the same piece and are not so not isolated from each other, the loop portions, joining the two handles and embedded in the concrete, secure the fastening system to an interesting portion of the wall of the retaining structure. So the loop portions embedded in the concrete ensure excellent anchoring of handles 11a, 11b in the wall 2.

La boucle 16 est formée à partir d'une bande partiellement enroulée sur elle-même et dont les deux extrémités 17, 18 sont soudées à la bande. La bande est en matériau plastique non corrodable. Elle comprend une âme en fibres de polyester, à forte résistance mécanique notamment à la traction, entourée d'une gaine de protection en polyéthylène. La gaine est destinée à protéger l'âme en fibres de polyester de l'alcalinité du béton de la paroi 2 et de l'agressivité du remblai utilisé.The loop 16 is formed from a partially wound strip on itself and whose two ends 17, 18 are welded to the strip. The strip is made of non-corrodible plastic material. She understands a soul in polyester fibers, with high mechanical strength, in particular tensile strength, surrounded by a polyethylene protective sheath. The sheath is intended for protect the polyester fiber core from the alkalinity of the concrete in wall 2 and from the aggressiveness of the embankment used.

Les deux anses 11a, 11b comprennent respectivement les deux extrémités 17, 18 de la bande, qui se trouvent ainsi en dehors de la paroi 2. Grâce à cela, l'âme de la bande ne risque pas d'être détériorée au niveau des extrémités 17, 18 du fait de l'alcalinité du béton.The two handles 11a, 11b respectively comprise the two ends 17, 18 of the strip, which are thus outside the wall 2. Thanks to this, the web of the strip does not risk being damaged at the level of the ends 17, 18 due to the alkalinity of the concrete.

Le support d'enroulement 10, encore appelé goupille, est un barreau cylindrique. Il est fixé à la paroi 2 par passage à travers les deux anses 11a, 11b. Une bande d'armature 4 est destinée à être enroulée autour de la goupille 10, sur un demi-tour, comme représenté sur la figure 2.The winding support 10, also called a pin, is a rod cylindrical. It is fixed to the wall 2 by passing through the two handles 11a, 11b. A reinforcing strip 4 is intended to be wrapped around the pin 10, on a half-turn, as shown in FIG. 2.

Le dispositif 20 de pose du système d'attache va maintenant être décrit en référence aux figures 5 et 6.The device 20 for fitting the fastening system will now be described. with reference to Figures 5 and 6.

Ce dispositif 20 comprend un barreau cylindrique 21, sensiblement de même forme que la goupille 10, formant gabarit de conformation de la boucle 16 et de formation des deux anses 11a, 11b.This device 20 comprises a cylindrical bar 21, substantially of same shape as pin 10, forming template for loop configuration 16 and forming the two handles 11a, 11b.

Deux paires de collerettes, ou flasques annulaires, 22a, 23a, 22b, 23b, destinées à positionner les anses 11a, 11b le long du gabarit 21, sont montées sur le gabarit 21 et solidaires de celui-ci. Chaque anse 11a (11b) est destinée à être bloquée latéralement, le long du gabarit 21, entre les deux flasques 22a, 23a (22b, 23b) d'une paire de flasques, l'écartement entre les deux paires de flasques 22a, 23a, 22b, 23b définissant ainsi l'écartement entre les deux anses 11a, 11b.Two pairs of flanges, or annular flanges, 22a, 23a, 22b, 23b, intended to position the handles 11a, 11b along the template 21, are mounted on the template 21 and integral with it. Each handle 11a (11b) is intended for be blocked laterally, along the template 21, between the two flanges 22a, 23a (22b, 23b) of a pair of flanges, the spacing between the two pairs of flanges 22a, 23a, 22b, 23b thus defining the spacing between the two handles 11a, 11b.

Le dispositif de pose 20 comprend également deux entretoises 24a, 24b, solidaires du gabarit 21, et deux clips 25a, destinées à plaquer les anses 11a, 11b contre les entretoises 24a, 24b afin d'assurer le parallélisme entre les branches 13a, 14a, 13b, 14b, des anses 11a, 11b, sur une distance au moins égale au diamètre de la goupille 10.The laying device 20 also includes two spacers 24a, 24b, integral with the template 21, and two clips 25a, intended to press the handles 11a, 11b against the spacers 24a, 24b in order to ensure the parallelism between the branches 13a, 14a, 13b, 14b, handles 11a, 11b, at least a distance equal to the diameter of the pin 10.

Les entretoises 24a, 24b sont solidaires du gabarit 21. Chaque entretoise 24a (24b) s'étend entre les deux flasques 22a, 23a (22b, 23b) d'une paire de flasques, au-dessous du gabarit 21, comme représenté sur la figure 5. Les deux entretoises 24a, 24b étant identiques, l'une seule va maintenant être décrite. L'entretoise 24a a globalement la forme d'un parallélépipède rectangle comprenant deux surfaces latérales d'appui 27a, 28a, parallèles à l'axe longitudinal du gabarit 21, et une surface supérieure ménageant une cavité 28a de réception du gabarit 21. La distance séparant les deux surfaces d'appui 27a, 28a est sensiblement égale à la distance entre les deux branches 13a, 14a de l'anse 11a.The spacers 24a, 24b are integral with the template 21. Each spacer 24a (24b) extends between the two flanges 22a, 23a (22b, 23b) of a pair of flanges, below the template 21, as shown in Figure 5. The two spacers 24a, 24b being identical, only one will now be described. The spacer 24a has the overall shape of a rectangular parallelepiped comprising two lateral bearing surfaces 27a, 28a, parallel to the axis longitudinal of the template 21, and an upper surface providing a cavity 28a for receiving the template 21. The distance separating the two bearing surfaces 27a, 28a is substantially equal to the distance between the two branches 13a, 14a handle 11a.

Chaque clip 25a comprend deux bras d'appui 29a, 30a, élastiquement déformables, se prolongeant l'un l'autre et pourvus de deux extrémités libres d'appui recourbées vers l'extérieur. Les deux bras d'appui 29a, 30a sont destinés à plaquer, par leurs extrémités libres recourbées, les deux branches 13a, 14a de l'anse 11a contre les deux surfaces d'appui 27a, 28a de l'entretoise 24a, afin d'assurer le parallélisme entre les deux branches 13a, 14a de l'anse 11a et de maintenir la boucle 16 conformée lors de la pose du système d'attache.Each clip 25a comprises two support arms 29a, 30a, elastically deformable, extending from each other and provided with two free ends support curved outwards. The two support arms 29a, 30a are intended to press the two arms by their curved free ends 13a, 14a of the handle 11a against the two bearing surfaces 27a, 28a of the spacer 24a, in order to ensure parallelism between the two branches 13a, 14a of the handle 11a and to maintain the loop 16 conformed during the installation of the system of attachment.

L'opération de pose du système d'attache précédemment décrit à l'aide du dispositif de pose 20 va maintenant être explicité.The installation operation of the fastening system previously described using of the laying device 20 will now be explained.

Les panneaux en béton constituant la paroi 2 sont fabriqués par moulage à plat. Lors de la fabrication d'un panneau, on positionne le dispositif de pose 20 au-dessus du moule, les entretoises 24a, 24b s'étendant au-dessous du gabarit 21, et on le bloque en rotation le gabarit 21. On prend ensuite la boucle 16, non encore conformée.The concrete panels constituting the wall 2 are manufactured by flat molding. When manufacturing a panel, the device is positioned laying 20 above the mold, the spacers 24a, 24b extending below of the template 21, and it blocks the template 21 in rotation. We then take the loop 16, not yet shaped.

Pour former l'anse 11a, on conforme la boucle 16 en l'appliquant contre la partie supérieure du gabarit 21, entre les deux flasques 22a, 23a d'une paire de flasques, et contre les surfaces d'appui 26a, 27a de l'entretoise 24a. On pose ensuite le clip 25a en l'enfourchant sur le gabarit 21, par un mouvement vertical vers le bas, entre les deux flasques 22a, 23a. Les deux bras 29a, 30a du clip 25a viennent plaquer et maintenir, par leurs-extrémités libres recourbées, les deux branches 13a, 14a de l'anse 11a contre les deux surfaces d'appui 26a, 27a de l'entretoise 24a, en assurant ainsi le parallélisme entre les deux branches 13a, 14a.To form the handle 11a, the loop 16 is conformed by applying it against the upper part of the template 21, between the two flanges 22a, 23a a pair of flanges, and against the bearing surfaces 26a, 27a of the spacer 24a. The clip 25a is then placed by straddling it on the template 21, by a vertical downward movement between the two flanges 22a, 23a. Both arm 29a, 30a of clip 25a press and hold, by their ends free curved, the two branches 13a, 14a of the handle 11a against the two bearing surfaces 26a, 27a of the spacer 24a, thereby ensuring parallelism between the two branches 13a, 14a.

On procède de la même manière pour former l'autre anse 11b.We proceed in the same way to form the other loop 11b.

Enfin, on coule le béton dans le moule, en noyant partiellement la boucle 16. Après solidification du béton, on retire le dispositif de pose.Finally, we pour the concrete into the mold, partially submerging the loop 16. After the concrete has solidified, the laying device is removed.

On soulignera ici que, lors du coulage du béton, les clips 25a bloquent les anses 11a, 11b et empêchent ainsi tout mouvement des anses 11a, 11b que ce soit vers le haut ou vers le bas. It will be emphasized here that, during the pouring of the concrete, the clips 25a block handles 11a, 11b and thus prevent any movement of handles 11a, 11b that either up or down.

La bande de base, à partir de laquelle on forme les anses 11a, 11b, était implicitement souple dans la description qui vient d'être faite. On pourrait imaginer un système d'attache utilisant une boucle en matériau rigide ou semi-rigide.The base band, from which the handles 11a, 11b are formed, was implicitly flexible in the description which has just been made. We could imagine a fastening system using a loop of rigid material or semi-rigid.

Claims (13)

Système d'attache d'une bande d'armature (4) à une paroi (2) d'un ouvrage de soutènement renforcé, comportant un support (10) d'enroulement de la bande d'armature et deux anses (11a, 11b) de fixation du support d'enroulement (10) à la paroi (2), caractérisé par le fait que les deux anses (11a, 11b) sont formées à partir d'une boucle (16) en matériau non corrodable et se prolongent ainsi l'une l'autre de façon continue.System for attaching a reinforcing strip (4) to a wall (2) of a reinforced retaining structure, comprising a winding support (10) of the reinforcing strip and two handles (11a, 11b) for fixing the support winding (10) to the wall (2), characterized in that the two handles (11a, 11b) are formed from a loop (16) of non-corrodible material and thus extend each other continuously. Système selon la revendication 1, dans lequel la boucle (16) est en matériau plastique.The system of claim 1, wherein the loop (16) is made of plastic. Système selon l'une des revendications 1 et 2, dans lequel la boucle (16) comprend une âme en fibres de polyester.System according to either of Claims 1 and 2, in which the loop (16) includes a polyester fiber core. Système selon la revendication 3, dans lequel la boucle (16) comprend une gaine en polyéthylène.The system of claim 3, wherein the loop (16) includes a polyethylene sheath. Système selon l'une des revendications 1 à 4, dans lequel la boucle (16) est formée à partir d'une bande enroulée sur elle-même.System according to one of Claims 1 to 4, in which the loop (16) is formed from a strip wound on itself. Système selon la revendication 5, dans lequel les anses (11a, 11b) comprennent les deux extrémités (17, 18) de la bande.The system of claim 5, wherein the handles (11a, 11b) comprise the two ends (17, 18) of the strip. Dispositif de pose du système d'attache de la revendication 1 à une paroi d'un ouvrage de soutènement renforcé, comprenant un gabarit (21) de conformation de la boucle (16) et de formation des deux anses (11a, 11b).Device for fitting the fastening system of claim 1 to a wall of a reinforced retaining structure, comprising a template (21) conformation of the loop (16) and formation of the two handles (11a, 11b). Dispositif selon la revendication 7, dans lequel il est prévu des moyens (22a, 23a, 22b, 23b) de positionnement des deux anses (11a, 11b) le long du gabarit (21).Device according to claim 7, in which there are provided means (22a, 23a, 22b, 23b) for positioning the two handles (11a, 11b) the along the template (21). Dispositif selon la revendication 8, dans lequel les moyens de positionnement comprennent deux paires de collerettes (22a, 23a, 22b, 23b), montées sur le gabarit (21), destinées à bloquer latéralement les deux anses (11a, 11b) respectivement.Device according to claim 8, in which the means for positioning include two pairs of flanges (22a, 23a, 22b, 23b), mounted on the template (21), intended to laterally block the two handles (11a, 11b) respectively. Dispositif selon l'une des revendications 7 à 9, dans lequel il est prévu des moyens pour assurer le parallélisme entre deux branches (13a, 14a, 13b, 14b) de chaque anse (11a, 11b). Device according to one of Claims 7 to 9, in which it is provided means for ensuring parallelism between two branches (13a, 14a, 13b, 14b) of each handle (11a, 11b). Dispositif selon la revendication 10, dans lequel les moyens pour assurer le parallélisme entre les deux branches (13a, 14a, 13b, 14b) de chaque anse (11a, 11b) comprennent une entretoise (24a, 24b), s'étendant entre les collerettes (13a, 14a, 13b, 14b) d'une paire.Device according to claim 10, in which the means for ensure the parallelism between the two branches (13a, 14a, 13b, 14b) of each handle (11a, 11b) comprise a spacer (24a, 24b), extending between the flanges (13a, 14a, 13b, 14b) of a pair. Dispositif selon la revendication 11, dans lequel il est prévu des moyens (25a) pour plaquer les deux branches (13a, 14a) de l'anse (11a) contre l'entretoise (24a).Device according to claim 11, in which there are provided means (25a) for pressing the two arms (13a, 14a) of the handle (11a) against the spacer (24a). Ensemble de deux anses de fixation pour le système d'attache de la revendication 1, caractérisé par le fait que les deux anses (11a, 11b) sont formées à partir d'une boucle (16) en matériau non corrodable et se prolongent l'une l'autre de façon continue.Set of two fixing handles for the attachment system claim 1, characterized in that the two handles (11a, 11b) are formed from a loop (16) of non-corrodible material and extend each other continuously.
EP01400010A 2000-01-07 2001-01-04 System for fastening a reinforcement strip to a retaining wall and apparatus for positioning the system Expired - Lifetime EP1114896B1 (en)

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FR0000178A FR2803610B1 (en) 2000-01-07 2000-01-07 SYSTEM FOR ATTACHING A REINFORCEMENT STRIP TO A WALL OF A SUPPORT STRUCTURE AND DEVICE FOR LAYING SAID SYSTEM
FR0000178 2000-01-07

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US20010014255A1 (en) 2001-08-16
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FR2803610B1 (en) 2002-09-27
AU780932B2 (en) 2005-04-28
JP2001226969A (en) 2001-08-24
TR200100153A2 (en) 2001-08-21
DE60109334D1 (en) 2005-04-21
JP4544754B2 (en) 2010-09-15
EP1114896B1 (en) 2005-03-16
TR200100153A3 (en) 2001-08-21
US6447212B2 (en) 2002-09-10

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