EP2216442B1 - Device for fitting an expansion joint, in particular an expansion joint between concrete slabs - Google Patents

Device for fitting an expansion joint, in particular an expansion joint between concrete slabs Download PDF

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Publication number
EP2216442B1
EP2216442B1 EP09152321.7A EP09152321A EP2216442B1 EP 2216442 B1 EP2216442 B1 EP 2216442B1 EP 09152321 A EP09152321 A EP 09152321A EP 2216442 B1 EP2216442 B1 EP 2216442B1
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EP
European Patent Office
Prior art keywords
slabs
anchoring elements
profile
anchoring
height
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EP09152321.7A
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German (de)
French (fr)
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EP2216442A1 (en
Inventor
Pierre Michels
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Plakabeton SA
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Plakabeton SA
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Priority to EP09152321.7A priority Critical patent/EP2216442B1/en
Priority to AU2010200404A priority patent/AU2010200404A1/en
Publication of EP2216442A1 publication Critical patent/EP2216442A1/en
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Publication of EP2216442B1 publication Critical patent/EP2216442B1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/08—Packing of metal

Definitions

  • the present invention relates to the construction sector, in particular that of slabs for industrial floors, and more particularly to a device which is in the form of a metal profile which serves to equip expansion joints between adjacent slabs.
  • the word 'joint' only serves to designate the zone or space which is between two adjacent slabs, whereas in the field of construction, this term is generally used to denominate in itself the device which equips such zoned.
  • the profiles that equip the expansion joints are metal profiles that are also called expansion profiles that are positioned in the gap between two slabs or parts of adjacent slabs.
  • Devices for equipping expansion joints are known in the field of concrete constructions.
  • the desired effect of this type of device is to form a connection between adjacent slabs, while allowing limited movement of one slab relative to the other in the plane of the slabs, said movement being essentially due initially to the shrinkage of concrete when taken and then to thermal expansions and retractions.
  • the devices must perform the load transfer between adjacent slabs and maintain the flatness of all the slabs, while avoiding breaks and damage to the edges of the slabs.
  • the device must be designed to allow quick and easy installation when pouring concrete slabs. It must also ensure sufficient mechanical strength of the edges of the slabs to the driving stresses and others.
  • the expansion joints are equipped with metal profiles flush with the upper level of the slab. These profiles are not naturally stable and are kept up to standard by all sorts of various impractical means like wedges and can alter the quality of the work if these means remain embedded in the concrete, precisely at a particularly sensitive place and already more brittle.
  • An expansion joint device can typically comprise a single profile but preferably two profiles arranged face to face and anchored in the concrete by anchoring doguets as well as load transfer elements, such as protrusions or studs that pass through. perpendicularly the seal, so as to allow expansion between two adjacent slabs and a load transfer between said slabs.
  • the projections are flat plates, the studs may be circular in shape or consist of bars of round, square, rectangular, etc. section. Examples of devices for expansion joints equipped with flat projections are given in the document EP 1,905,898 .
  • the document WO2006 / 016133 discloses a device according to the preamble of claim 1 for equipping an expansion joint between concrete slabs, the device comprising two metal profiles installed face-to-face, and provided with anchoring elements in the form of vertical portions of the profiles, which have been cut and folded.
  • the anchoring elements therefore have the form of vertical sheets.
  • These vertical plates are provided with reservations at their ends, so as to connect the anchor plates to adjusting rods for adjusting the device height.
  • the present invention aims to provide a device for equipping a expansion joint between two slabs, which offers a solution to the existing problems in devices of the state of the art.
  • the present invention aims to provide a laying device that keeps the profile at the right height, that is to say, so that the upper level of the profile is flush with the upper level of the slab and that it is placed perfectly vertically throughout the implementation.
  • the present invention therefore aims to provide a device that is adjustable in height and that allows to maintain said profile in a vertical position from the moment of installation while ensuring maximum stability.
  • the present invention aims to provide a device that allows a height adjustment without having to change the vertical position of said device.
  • the anchoring elements are also arranged and spaced evenly over the entire length of the device.
  • the first height is preferably close to half height.
  • the second height is greater than the first height.
  • the anchoring elements are positioned in the upper part of the device when it is put in place.
  • several rows of doguets can be envisaged, a row disposed above the transfer elements and a row disposed below the transfer elements.
  • the two rows of doguets have according to the invention a reservation or means for fixing a positioning and holding device.
  • the anchoring elements may have orifices in the proximal portion, the diameter or the maximum dimension of these orifices being preferably less than that of the opening or reservation present in the distal portion.
  • All the anchoring elements and more particularly the distal parts are preferably interconnected by a connecting bar arranged substantially parallel to the device.
  • edges of the sheet for making the anchoring elements may have a corrugated profile on its proximal part and a rectilinear profile on its distal part. This is to facilitate anchoring when taking concrete.
  • the figures 1 and 2 represent a perspective view of a device serving as an expansion profile according to two different embodiments and intended to equip an expansion joint between two concrete slabs according to the state of the art.
  • the figure 3 represents a sectional view, perpendicular to the longitudinal axis, of a dilator device according to the state of the art.
  • the figure 4 is a side sectional view in detail of an anchor element such as a doguet used in a dilator device according to the state of the art.
  • the figure 5 is a detail side sectional view of an anchor element such as a doguet used in an expansion device according to the present invention.
  • the figure 6 represents a top view of such an anchor element used in the expansion device according to the present invention.
  • the figure 7 represents a sectional view of the complete device provided with its positioning device.
  • the figures 1 and 2 represent two different embodiments of devices intended to equip an expansion joint and as used according to the state of the art. These devices will be poured into concrete slabs that are not represented in these two figures 1 and 2 . These are pre-assembled devices that are put in place before the concrete slabs are poured.
  • Such a conventional expansion device comprises two metal profiles 1 and 2, arranged face to face, often on both sides of a partition plate 3, or themselves forming a separation between the adjacent slabs.
  • the device must be arranged perpendicular to the plane of the slabs 100 and more precisely vertically relative thereto or with respect to the ground.
  • charge transfer elements 4 which pass through the device, and which take the form of projections or load transfer studs.
  • projections are preferably flat or flat and may have any shape.
  • the shape of these projections may be trapezoidal, rectangular or even triangular or rounded.
  • the load transfer elements may also consist of studs which are bars with round, square, rectangular, etc. section.
  • the projections or studs are arranged parallel to the plane of the slabs and therefore perpendicular to the profiles 1 and 2 or to the partition plate 3, preferably at mid-height.
  • the space provided between two consecutive projections is less than the length of said protrusion.
  • the width and thickness of these projections or studs will be defined so as to absorb a charge transfer during the thermal expansion / retraction that the concrete slabs may undergo.
  • These protrusions can usually occur ( Fig. 2 and 3 ) in the form of plates obtained by folding the metal profiles 1 and 2 in two parts arranged at right angles, the first part being vertical and therefore parallel to the profile (s), the second part forming the projection 4.
  • the metal profiles are further provided with anchoring elements 5 present in the upper part of the seal and arranged in a spaced and regular manner along the length of the profile.
  • the distance between two anchoring elements can be chosen so as to ensure adequate anchoring.
  • the presence of the anchoring elements can be observed on either side of the metal profiles and they can be arranged alternately or vis-à-vis.
  • the anchoring elements are cylindrical rods 5 having a length greater than the width of the projections or studs.
  • rods having a diameter of 10 mm can be used for a length of a few centimeters (five) to a few tens of centimeters (twenty).
  • these anchoring elements may be flat sheets 5 'having a length also greater than the width of the projections or studs, with an adequate thickness and width.
  • the flat sheets will have a width of at least 20 mm and preferably of the order of 30 mm for a thickness of less than 10 mm and preferably of the order of 5 mm.
  • the doguets do not exceed the transfer elements which are round studs.
  • anchoring elements are provided with a tip which may be in the form of a solid tip, for example in the form of a bolt 6 or a protrusion as shown in FIG. figure 4 .
  • a tip which may be in the form of a solid tip, for example in the form of a bolt 6 or a protrusion as shown in FIG. figure 4 .
  • the end 7 of the sheet is separated in two to better ensure anchoring.
  • the anchoring devices are slightly inclined relative to the plane of the slabs 100.
  • the angle of inclination is greater than 10 ° and less than 30 °, and preferably of the order of 20 °.
  • the figure 5 represents an example of such an anchoring element according to the present invention.
  • Another alternative is to propose to weld horizontally the anchoring elements and slightly bend them.
  • this flat sheet metal is a sheet which will be slightly folded and which will have a profile inclined relative to the proximal part 10 while it will have a profile plane parallel to the plane of the slabs 100 in its distal portion 11.
  • a complementary fold 12 advantageously allows the installation of a rod or spar 14 whose length substantially corresponds to the length of the metal profiles 1 or 2 or the separating plate 3 and allows to maintain and secure between them the various elements of anchoring or doguets.
  • the distal portion of at least one element and preferably all of the anchoring elements has an orifice or a reservation which allows the passage of a device 20 for positioning and maintaining the profile. dilation (shown schematically in the figure 7 ).
  • all the anchoring elements or doguets will present such a reservation 15.
  • the fact that the doguets arranged on either side of the separating plate present this reservation or opening will allow to have a number and preferably at least three positioning and holding devices. Ideally, at least two devices will be placed on one side while a third device will be placed on the other side of the profiles 1 or 2 or the partition plate 3.
  • the fact of being able to place such devices for holding 20 both sides of the expansion device allows a perfectly adequate fit and also allows to maintain the perfect verticality of the expansion profiles relative to the concrete slab.
  • the slope of the proximal portion 10 is between 20 ° and 40 °, and preferably is close to 30 °.
  • the slope of the distal portion 11 could be even reversed and be close to 10 °.
  • the proximal part 10 of the anchoring elements also has orifices 16 called ventilation orifices.
  • the purpose and the presence of these orifices is to allow the passage of air that could have been trapped under the proximal portion 10 of these anchoring elements.
  • the diameter or the maximum size of these ventilation openings 16 is much smaller than the reservation or opening 15 provided in the distal portion 11.
  • the diameter of the orifices present in the distal portion is order of 8 mm, while the diameter of the opening or reservation present in the distal portion is of the order of 16 mm.
  • the side walls or edges 17 of said anchoring elements have at least in their proximal part a non-rectilinear profile (corrugated in the case of the figure 6 ) while preferably, the profile of the distal portion is rectilinear.
  • This design facilitates anchoring when setting concrete.
  • the installation of such a dilation device will be carried out judicious in proposing to have on each side at least one or two positioning and holding devices 20, to perfectly adapt the arrangement of said devices allowing adjustment in height while ensuring perfect verticality. This makes it possible to obtain better stability during concreting.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Objet de l'inventionObject of the invention

La présente invention se rapporte au secteur de la construction, en particulier celui des dalles pour sols industriels, et concerne plus particulièrement un dispositif qui se présente sous forme de profil métallique qui sert à équiper des joints de dilatation entre des dalles adjacentes.The present invention relates to the construction sector, in particular that of slabs for industrial floors, and more particularly to a device which is in the form of a metal profile which serves to equip expansion joints between adjacent slabs.

Dans la présente description, le mot 'joint' sert seulement à désigner la zone ou espace qui se trouve entre deux dalles adjacentes, alors que dans le domaine de la construction, ce terme est généralement utilisé pour dénommer en soi le dispositif qui équipe une telle zone.In the present description, the word 'joint' only serves to designate the zone or space which is between two adjacent slabs, whereas in the field of construction, this term is generally used to denominate in itself the device which equips such zoned.

Les profils qui équipent les joints de dilatation sont des profils métalliques que l'on appelle également profils de dilatation qui sont donc positionnés dans l'interstice présent entre deux dalles ou parties de dalles adjacentes.The profiles that equip the expansion joints are metal profiles that are also called expansion profiles that are positioned in the gap between two slabs or parts of adjacent slabs.

Etat de la techniqueState of the art

Les dispositifs pour équiper des joints de dilatation sont connus dans le domaine des constructions en béton. L'effet souhaité par ce genre de dispositifs est de former une connexion entre dalles adjacentes, tout en permettant un mouvement limité d'une dalle par rapport à l'autre dans le plan des dalles, ledit mouvement étant essentiellement dû initialement au retrait de béton lors de la prise et ensuite aux dilatations et rétractions thermiques. Les dispositifs doivent effectuer le transfert de charge entre dalles adjacentes et maintenir la planéité de l'ensemble des dalles, tout en évitant des ruptures et les détériorations au niveau des arêtes des dalles.Devices for equipping expansion joints are known in the field of concrete constructions. The desired effect of this type of device is to form a connection between adjacent slabs, while allowing limited movement of one slab relative to the other in the plane of the slabs, said movement being essentially due initially to the shrinkage of concrete when taken and then to thermal expansions and retractions. The devices must perform the load transfer between adjacent slabs and maintain the flatness of all the slabs, while avoiding breaks and damage to the edges of the slabs.

Le dispositif doit être conçu pour permettre une mise en place rapide et facile lors de la coulée des dalles de béton. Il doit également assurer une résistance mécanique suffisante des arêtes des dalles aux sollicitations de roulage et autres.The device must be designed to allow quick and easy installation when pouring concrete slabs. It must also ensure sufficient mechanical strength of the edges of the slabs to the driving stresses and others.

Généralement, les joints de dilatation sont équipés de profils métalliques affleurant le niveau supérieur de la dalle. Ces profils ne sont pas naturellement stables et sont maintenus à niveau par toutes sortes de moyens divers peu pratiques comme des cales et pouvant altérer la qualité de l'ouvrage si ces moyens restent noyés dans le béton, précisément à un endroit particulièrement sensible et déjà plus fragile.Generally, the expansion joints are equipped with metal profiles flush with the upper level of the slab. These profiles are not naturally stable and are kept up to standard by all sorts of various impractical means like wedges and can alter the quality of the work if these means remain embedded in the concrete, precisely at a particularly sensitive place and already more brittle.

Un dispositif pour joint de dilatation peut comprendre typiquement un seul profil mais de préférence deux profils disposés face à face et ancrés dans le béton par des doguets d'ancrage ainsi que des éléments de transfert de charge, tels que des saillies ou des goujons qui traversent perpendiculairement le joint, de façon à permettre une dilatation entre deux dalles adjacentes ainsi qu'un transfert de charge entre lesdites dalles. Les saillies sont des plaques planes, les goujons peuvent être de forme circulaire ou être constitués par des barreaux de section ronde, carrée, rectangulaire, etc. Des exemples de dispositifs pour joints de dilatation équipés de saillies plates sont donnés dans le document EP 1 905 898 .An expansion joint device can typically comprise a single profile but preferably two profiles arranged face to face and anchored in the concrete by anchoring doguets as well as load transfer elements, such as protrusions or studs that pass through. perpendicularly the seal, so as to allow expansion between two adjacent slabs and a load transfer between said slabs. The projections are flat plates, the studs may be circular in shape or consist of bars of round, square, rectangular, etc. section. Examples of devices for expansion joints equipped with flat projections are given in the document EP 1,905,898 .

Une solution améliorée pour le placement de ces joints a été décrite dans le document EP 1 389 648 par l'utilisation d'un dispositif réglable en hauteur qui traverse un goujon plat de transfert de charge. Ce dispositif ne stabilise pas le profil équipant le joint au moment de la pose et nécessite de serrer un écrou pour le stabiliser dans la bonne position. Le réglage en hauteur nécessite de déstabiliser le profil, d'effectuer le réglage et de restabiliser.An improved solution for the placement of these seals has been described in the document EP 1 389 648 through the use of a height-adjustable device that runs through a flat load transfer stud. This device does not stabilize the profile equipping the seal at the time of installation and requires tightening a nut to stabilize it in the right position. Height adjustment requires destabilizing the profile, adjusting and restabilizing.

La Demanderesse a également déjà proposé une solution pour résoudre ce problème de pose, en particulier dans la demande EP 08169233.7 , où il est suggéré d'utiliser un dispositif indépendant de pose dont la conception même réside dans le fait qu'il puisse se fixer au(x) profil(s) métallique(s) et les maintenir en position parfaitement verticale dès la pose sur le sol.The Applicant has also already proposed a solution to solve this laying problem, particularly in the application. EP 08169233.7 , where it is suggested to use an independent laying device whose very design lies in the fact that it can be fixed to the metal profile (s) and maintain them in a perfectly vertical position from the laying on floor.

Il s'agit d'un dispositif de maintien d'un profil pour joint de dilatation entre dalles ou parties de dalles en béton qui comprend, par exemple :

  • des moyens de fixation audit profil, les moyens agissant de manière à assurer une solidarisation parfaite pendant le placement dudit profil et permettant une désolidarisation lorsque les dalles sont réalisées, et
  • des moyens de réglage en hauteur dudit profil de manière à assurer un positionnement adéquat.
It is a device for maintaining a profile for an expansion joint between slabs or parts of concrete slabs which comprises, for example:
  • fastening means to said profile, the means acting so as to ensure perfect connection during the placement of said profile and allowing a separation when the slabs are made, and
  • means for adjusting the height of said profile so as to ensure proper positioning.

Le document WO2006/016133 divulgue un dispositif selon le préambule de la revendication 1 pour équiper un joint de dilatation entre dalles de béton, le dispositif comprenant deux profiles métalliques installés face-à-face, et pourvu d'éléments d'ancrage en forme de parties verticales des profiles, qui ont été découpées et repliées. Les éléments d'ancrage ont donc la forme de tôles verticales. Ces tôles verticales sont pourvues de réservations à leurs extrémités, de façon à connecter les tôles d'ancrage à des tiges de réglage permettant un réglage du dispositif en hauteur.The document WO2006 / 016133 discloses a device according to the preamble of claim 1 for equipping an expansion joint between concrete slabs, the device comprising two metal profiles installed face-to-face, and provided with anchoring elements in the form of vertical portions of the profiles, which have been cut and folded. The anchoring elements therefore have the form of vertical sheets. These vertical plates are provided with reservations at their ends, so as to connect the anchor plates to adjusting rods for adjusting the device height.

Buts de l'inventionGoals of the invention

La présente invention vise à fournir un dispositif permettant d'équiper un joint de dilatation entre deux dalles, qui offre une solution aux problèmes existants dans les dispositifs de l'état de la technique.The present invention aims to provide a device for equipping a expansion joint between two slabs, which offers a solution to the existing problems in devices of the state of the art.

En particulier, la présente invention vise à proposer un dispositif de pose qui permette de garder le profil à la bonne hauteur, c'est-à-dire de manière à ce que le niveau supérieur du profil affleure le niveau supérieur de la dalle et qu'il soit posé de manière parfaitement verticale pendant toute la mise en oeuvre.In particular, the present invention aims to provide a laying device that keeps the profile at the right height, that is to say, so that the upper level of the profile is flush with the upper level of the slab and that it is placed perfectly vertically throughout the implementation.

La présente invention vise donc à proposer un dispositif qui soit réglable en hauteur et qui permette de maintenir ledit profil en position verticale dès le moment de la pose tout en assurant une stabilité maximale.The present invention therefore aims to provide a device that is adjustable in height and that allows to maintain said profile in a vertical position from the moment of installation while ensuring maximum stability.

De manière avantageuse, la présente invention vise à proposer un dispositif qui permette un réglage en hauteur sans devoir modifier la position verticale dudit dispositif.Advantageously, the present invention aims to provide a device that allows a height adjustment without having to change the vertical position of said device.

Principaux éléments caractéristiques de l'inventionMain characteristic elements of the invention

Les éléments essentiels et caractéristiques de l'invention sont décrits dans les revendications annexées.The essential elements and characteristics of the invention are described in the appended claims.

Il s'agit d'un dispositif destiné à établir une connexion entre deux dalles adjacentes, de préférence des dalles en béton, en équipant le joint de dilatation se trouvant entre les deux dalles, ledit dispositif se présentant sous la forme d'un profil métallique ou de deux profils métalliques disposés face à face et le dispositif étant pourvu d'éléments de transfert de charge tels que des saillies ou goujons disposés à une première hauteur définie ainsi que d'éléments d'ancrage disposés à une seconde hauteur définie, ces éléments d'ancrage étant disposés de part et d'autre du ou des profils, soit de manière alternée, soit en vis-à-vis, dans lequel les éléments d'ancrage se présentent sous la forme d'une tôle plane ayant une partie distale et une partie proximale et qui présente dans la partie distale une ouverture ou réservation permettant le passage d'un dispositif de positionnement et de maintien ou de moyens de fixation d'un dispositif de positionnement et de maintien, caractérisé en ce que lesdites tôles planes sont

  • disposées essentiellement de manière parallèle au plan des dalles, ou
  • légèrement pliées de manière à ce que la partie distale de l'élément d'ancrage soit essentiellement perpendiculaire aux profils et donc parallèle au plan des dalles,
et en ce que la seconde hauteur est supérieure à la première hauteur, de telle sorte qu'en utilisation, les éléments d'ancrage sont positionnés dans la partie supérieure du dispositif.It is a device intended to establish a connection between two adjacent slabs, preferably concrete slabs, by equipping the expansion joint located between the two slabs, said device being in the form of a metal profile or two metal profiles arranged face to face and the device being provided with load transfer elements such as projections or studs arranged at a first defined height as well as anchoring elements arranged at a second defined height, these elements anchoring being disposed on either side of the profile or profiles, either alternately or vis-à-vis, wherein the anchoring elements are in the form of a flat sheet having a distal portion and a proximal portion and which has in the distal portion an opening or reservation allowing the passage of a positioning device and holding or fixing means of a positioning device and maintenance, characterized in that said flat sheets are
  • arranged essentially parallel to the plane of the slabs, or
  • slightly bent so that the distal portion of the anchoring element is substantially perpendicular to the profiles and therefore parallel to the plane of the slabs,
and in that the second height is greater than the first height, so that in use, the anchoring elements are positioned in the upper part of the device.

De préférence, les éléments d'ancrage sont également disposés et espacés de manière régulière sur toute la longueur du dispositif.Preferably, the anchoring elements are also arranged and spaced evenly over the entire length of the device.

La première hauteur est de préférence proche de la mi-hauteur. Lorsque le dispositif de dilatation est positionné dans le joint, la seconde hauteur est supérieure à la première hauteur. Ceci signifie que les éléments d'ancrage sont positionnés dans la partie supérieure du dispositif lorsque celui-ci est mis en place. Toutefois, dans certaines formes d'exécution, on peut envisager plusieurs rangées de doguets, une rangée disposée au-dessus des éléments de transfert et une rangée disposée en-dessous des éléments de transfert. Dans ce cas, les deux rangées de doguets présentent selon l'invention une réservation ou des moyens de fixation d'un dispositif de positionnement et de maintien.The first height is preferably close to half height. When the expansion device is positioned in the joint, the second height is greater than the first height. This means that the anchoring elements are positioned in the upper part of the device when it is put in place. However, in certain embodiments, several rows of doguets can be envisaged, a row disposed above the transfer elements and a row disposed below the transfer elements. In this case, the two rows of doguets have according to the invention a reservation or means for fixing a positioning and holding device.

Les éléments d'ancrage peuvent présenter des orifices dans la partie proximale, le diamètre ou la dimension maximale de ces orifices étant de préférence inférieure à celle de l'ouverture ou réservation présente dans la partie distale.The anchoring elements may have orifices in the proximal portion, the diameter or the maximum dimension of these orifices being preferably less than that of the opening or reservation present in the distal portion.

L'ensemble des éléments d'ancrage et plus particulièrement des parties distales sont de préférence reliées entre elles par une barre de jonction disposée de manière essentiellement parallèle au dispositif.All the anchoring elements and more particularly the distal parts are preferably interconnected by a connecting bar arranged substantially parallel to the device.

Les bords de la tôle permettant de réaliser les éléments d'ancrage peuvent présenter un profil ondulé sur sa partie proximale et un profil rectiligne sur sa partie distale. Ceci a pour objet de faciliter l'ancrage lors de la prise du béton.The edges of the sheet for making the anchoring elements may have a corrugated profile on its proximal part and a rectilinear profile on its distal part. This is to facilitate anchoring when taking concrete.

Brève description des figuresBrief description of the figures

Les figures 1 et 2 représentent une vue en perspective d'un dispositif servant de profil de dilatation selon deux formes d'exécution différentes et destiné à équiper un joint de dilatation entre deux dalles de béton selon l'état de la technique.The figures 1 and 2 represent a perspective view of a device serving as an expansion profile according to two different embodiments and intended to equip an expansion joint between two concrete slabs according to the state of the art.

La figure 3 représente une vue en coupe, perpendiculaire à l'axe longitudinal, d'un dispositif de dilatation selon l'état de la technique.The figure 3 represents a sectional view, perpendicular to the longitudinal axis, of a dilator device according to the state of the art.

La figure 4 représente une vue en coupe latérale en détail d'un élément d'ancrage tel un doguet utilisé dans un dispositif de dilatation selon l'état de la technique.The figure 4 is a side sectional view in detail of an anchor element such as a doguet used in a dilator device according to the state of the art.

La figure 5 représente une vue en coupe latérale en détail d'un élément d'ancrage tel un doguet utilisé dans un dispositif de dilatation selon la présente invention.The figure 5 is a detail side sectional view of an anchor element such as a doguet used in an expansion device according to the present invention.

La figure 6 représente une vue par le haut d'un tel élément d'ancrage utilisé dans le dispositif de dilatation selon la présente invention.The figure 6 represents a top view of such an anchor element used in the expansion device according to the present invention.

La figure 7 représente une vue en coupe du dispositif complet muni de son dispositif de positionnement.The figure 7 represents a sectional view of the complete device provided with its positioning device.

Description détaillée de plusieurs formes d'exécution de l'inventionDetailed description of several embodiments of the invention

Les figures 1 et 2 représentent deux formes d'exécution différentes de dispositifs destinés à équiper un joint de dilatation et telles qu'utilisées selon l'état de la technique. Ces dispositifs seront coulés dans des dalles de béton qui ne sont pas représentées dans ces deux figures 1 et 2. Il s'agit de dispositifs pré-assemblés qui sont mis en place avant que les dalles de béton ne soient coulées.The figures 1 and 2 represent two different embodiments of devices intended to equip an expansion joint and as used according to the state of the art. These devices will be poured into concrete slabs that are not represented in these two figures 1 and 2 . These are pre-assembled devices that are put in place before the concrete slabs are poured.

Un tel dispositif de dilatation classique comprend deux profils métalliques 1 et 2, disposés face à face, souvent des deux côtés d'une plaque de séparation 3, ou formant eux-mêmes une séparation entre les dalles adjacentes. Le dispositif devra être disposé de manière perpendiculaire par rapport au plan des dalles 100 et plus précisément de manière verticale par rapport à celle-ci ou par rapport au sol.Such a conventional expansion device comprises two metal profiles 1 and 2, arranged face to face, often on both sides of a partition plate 3, or themselves forming a separation between the adjacent slabs. The device must be arranged perpendicular to the plane of the slabs 100 and more precisely vertically relative thereto or with respect to the ground.

Sur au moins une des deux faces du dispositif, mais de préférence de part et d'autre du joint, sont disposés des éléments 4 de transfert de charge qui traversent le dispositif, et qui prennent la forme de saillies ou goujons de transfert de charge. Ces saillies sont de préférence plates ou planes et peuvent présenter une forme quelconque. La forme de ces saillies peut être trapézoïdale, rectangulaire ou même triangulaire ou encore arrondie. Les éléments de transfert de charge peuvent être également constitués par des goujons qui sont des barreaux à section ronde, carrée, rectangulaire, etc.On at least one of the two faces of the device, but preferably on either side of the seal, there are arranged charge transfer elements 4 which pass through the device, and which take the form of projections or load transfer studs. These projections are preferably flat or flat and may have any shape. The shape of these projections may be trapezoidal, rectangular or even triangular or rounded. The load transfer elements may also consist of studs which are bars with round, square, rectangular, etc. section.

Les saillies ou goujons sont disposés parallèlement au plan des dalles et donc perpendiculairement aux profils 1 et 2 ou à la plaque de séparation 3, de préférence à mi-hauteur.The projections or studs are arranged parallel to the plane of the slabs and therefore perpendicular to the profiles 1 and 2 or to the partition plate 3, preferably at mid-height.

De préférence, l'espace prévu entre deux saillies consécutives est inférieur à la longueur de la dite saillie. La largeur et l'épaisseur de ces saillies ou goujons seront définies de manière à absorber un transfert de charge lors des dilatations/rétractations thermiques que peuvent subir les dalles de béton. Ces saillies peuvent se présenter habituellement (fig. 2 et 3) sous forme de plaques obtenues par pliage des profils métalliques 1 et 2 en deux parties disposées en angle droit, la première partie étant verticale et donc parallèle au(x) profil(s), la seconde partie formant la saillie 4.Preferably, the space provided between two consecutive projections is less than the length of said protrusion. The width and thickness of these projections or studs will be defined so as to absorb a charge transfer during the thermal expansion / retraction that the concrete slabs may undergo. These protrusions can usually occur ( Fig. 2 and 3 ) in the form of plates obtained by folding the metal profiles 1 and 2 in two parts arranged at right angles, the first part being vertical and therefore parallel to the profile (s), the second part forming the projection 4.

Les profils métalliques sont en outre munis d'éléments d'ancrage 5 présents dans la partie supérieure du joint et disposés de manière espacée et régulière sur la longueur du profil. La distance entre deux éléments d'ancrage peut être choisie de manière à assurer un ancrage adéquat. La présence des éléments d'ancrage peut s'observer de part et d'autre des profils métalliques et ceux-ci peuvent être disposés soit en alternance, soit en vis-à-vis.The metal profiles are further provided with anchoring elements 5 present in the upper part of the seal and arranged in a spaced and regular manner along the length of the profile. The distance between two anchoring elements can be chosen so as to ensure adequate anchoring. The presence of the anchoring elements can be observed on either side of the metal profiles and they can be arranged alternately or vis-à-vis.

Habituellement, selon l'état de la technique et ainsi que représenté à la figure 4, les éléments d'ancrage sont des tiges cylindriques 5 présentant une longueur supérieure à la largeur des saillies ou goujons. A titre d'exemple, on peut utiliser des tiges présentant un diamètre de 10 mm pour une longueur de quelques centimètres (cinq) à quelques dizaines de centimètres (vingt).Usually, according to the state of the art and as represented in figure 4 , the anchoring elements are cylindrical rods 5 having a length greater than the width of the projections or studs. By way of example, rods having a diameter of 10 mm can be used for a length of a few centimeters (five) to a few tens of centimeters (twenty).

Ainsi que représenté à la figure 2, ces éléments d'ancrage peuvent être des tôles planes 5' présentant une longueur également supérieure à la largeur des saillies ou goujons, avec une épaisseur et une largeur adéquates. Avantageusement, les tôles planes présenteront une largeur de minimum 20 mm et de préférence de l'ordre de 30 mm pour une épaisseur inférieure à 10 mm et de préférence de l'ordre de 5 mm.As represented in figure 2 these anchoring elements may be flat sheets 5 'having a length also greater than the width of the projections or studs, with an adequate thickness and width. Advantageously, the flat sheets will have a width of at least 20 mm and preferably of the order of 30 mm for a thickness of less than 10 mm and preferably of the order of 5 mm.

Dans certains cas, les doguets ne dépassent pas les éléments de transfert qui sont des goujons ronds.In some cases, the doguets do not exceed the transfer elements which are round studs.

Ces éléments d'ancrage sont munis d'un embout qui peut se présenter sous la forme d'un embout plein, par exemple sous la forme d'un boulon 6 ou d'une excroissance comme représenté à la figure 4. Selon la forme d'exécution à la figure 2, simplement l'extrémité 7 de la tôle est séparée en deux afin de mieux assurer l'ancrage.These anchoring elements are provided with a tip which may be in the form of a solid tip, for example in the form of a bolt 6 or a protrusion as shown in FIG. figure 4 . According to the form of execution at figure 2 simply the end 7 of the sheet is separated in two to better ensure anchoring.

Habituellement, les dispositifs d'ancrage sont légèrement inclinés par rapport au plan des dalles 100. Adéquatement, l'angle d'inclinaison est supérieur à 10° et inférieur à 30°, et de préférence de l'ordre de 20°. La figure 5 représente un exemple d'un tel élément d'ancrage selon la présente invention. On peut également envisager le placement d'éléments d'ancrage horizontalement, donc parallèle au plan des dalles. Une autre alternative est de proposer de souder horizontalement les éléments d'ancrage et de légèrement les plier.Usually, the anchoring devices are slightly inclined relative to the plane of the slabs 100. Adequately, the angle of inclination is greater than 10 ° and less than 30 °, and preferably of the order of 20 °. The figure 5 represents an example of such an anchoring element according to the present invention. One can also consider the placement of anchoring elements horizontally, so parallel to the plane of the slabs. Another alternative is to propose to weld horizontally the anchoring elements and slightly bend them.

Selon une forme d'exécution préférée de l'invention ainsi que représenté en détail à la figure 5, on a choisi une tôle plane 8 servant d'élément d'ancrage. Selon cette forme d'exécution, cette tôle plane est une tôle qui sera légèrement pliée et qui présentera un profil incliné par rapport à la partie proximale 10 tandis qu'elle présentera un profil plan parallèle au plan des dalles 100 dans sa partie distale 11.According to a preferred embodiment of the invention as shown in detail in FIG. figure 5 , we chose a flat sheet 8 serving as an anchoring element. According to this embodiment, this flat sheet metal is a sheet which will be slightly folded and which will have a profile inclined relative to the proximal part 10 while it will have a profile plane parallel to the plane of the slabs 100 in its distal portion 11.

Enfin, de manière avantageuse, on a prévu à son extrémité distale 13 un pli 12 complémentaire. La présence de ce pli permettra avantageusement la pose d'une tige ou longeron 14 dont la longueur correspond essentiellement à la longueur des profils métalliques 1 ou 2 ou de la plaque de séparation 3 et permet de maintenir et de solidariser entre eux les différents éléments d'ancrage ou doguets.Finally, advantageously, there is provided at its distal end 13 a complementary fold 12. The presence of this fold advantageously allows the installation of a rod or spar 14 whose length substantially corresponds to the length of the metal profiles 1 or 2 or the separating plate 3 and allows to maintain and secure between them the various elements of anchoring or doguets.

Selon la présente invention, la partie distale d'au moins un élément et de préférence de l'ensemble des éléments d'ancrage présente un orifice 15 ou une réservation qui permet le passage d'un dispositif 20 de positionnement et de maintien du profil de dilatation (représenté schématiquement à la figure 7).According to the present invention, the distal portion of at least one element and preferably all of the anchoring elements has an orifice or a reservation which allows the passage of a device 20 for positioning and maintaining the profile. dilation (shown schematically in the figure 7 ).

De manière avantageuse, la totalité des éléments d'ancrage ou doguets présenteront une telle réservation 15. Le fait que les doguets disposés de part et d'autre de la plaque de séparation présentent cette réservation ou ouverture permettra de disposer un certain nombre et de préférence au minimum trois dispositifs de positionnement et de maintien. Idéalement, au moins deux dispositifs seront placés d'un côté tandis qu'un troisième dispositif sera placé de l'autre côté des profils 1 ou 2 ou de la plaque de séparation 3. Le fait de pouvoir placer de tels dispositifs de maintien 20 de part et d'autre du dispositif de dilatation permet un ajustement parfaitement adéquat et permet également de conserver la verticalité parfaite des profils de dilatation par rapport à la dalle de béton.Advantageously, all the anchoring elements or doguets will present such a reservation 15. The fact that the doguets arranged on either side of the separating plate present this reservation or opening will allow to have a number and preferably at least three positioning and holding devices. Ideally, at least two devices will be placed on one side while a third device will be placed on the other side of the profiles 1 or 2 or the partition plate 3. The fact of being able to place such devices for holding 20 both sides of the expansion device allows a perfectly adequate fit and also allows to maintain the perfect verticality of the expansion profiles relative to the concrete slab.

Selon une forme d'exécution préférée, la pente de la partie proximale 10 est comprise entre 20° et 40°, et de préférence est proche de 30°. La pente de la partie distale 11 pourrait être même inversée et être proche de 10°.According to a preferred embodiment, the slope of the proximal portion 10 is between 20 ° and 40 °, and preferably is close to 30 °. The slope of the distal portion 11 could be even reversed and be close to 10 °.

Selon une forme d'exécution particulièrement préférée telle que représentée à la figure 6, la partie proximale 10 des éléments d'ancrage présente également des orifices 16 appelés orifices d'aération. Le but et la présence de ces orifices est de permettre le passage de l'air qui aurait pu être emprisonné sous la partie proximale 10 de ces éléments d'ancrage. De manière avantageuse, le diamètre ou la grandeur maximale de ces orifices 16 d'aération est nettement inférieur à la réservation ou ouverture 15 prévue dans la partie distale 11. De manière avantageuse, le diamètre des orifices présents dans la partie distale est de l'ordre de 8 mm, tandis que le diamètre de l'ouverture ou réservation présente dans la partie distale est de l'ordre de 16 mm.According to a particularly preferred embodiment as shown in FIG. figure 6 , the proximal part 10 of the anchoring elements also has orifices 16 called ventilation orifices. The purpose and the presence of these orifices is to allow the passage of air that could have been trapped under the proximal portion 10 of these anchoring elements. Advantageously, the diameter or the maximum size of these ventilation openings 16 is much smaller than the reservation or opening 15 provided in the distal portion 11. Advantageously, the diameter of the orifices present in the distal portion is order of 8 mm, while the diameter of the opening or reservation present in the distal portion is of the order of 16 mm.

Selon une forme d'exécution encore préférée, illustrée à la figure 6, on peut envisager que les parois latérales ou bords 17 desdits éléments d'ancrage présentent au moins dans leur partie proximale un profil non rectiligne (ondulé dans le cas de la figure 6) alors que de préférence, le profil de la partie distale est rectiligne. Ce design permet de faciliter l'ancrage lors de la prise du béton.According to a still preferred embodiment, illustrated in FIG. figure 6 it can be envisaged that the side walls or edges 17 of said anchoring elements have at least in their proximal part a non-rectilinear profile (corrugated in the case of the figure 6 ) while preferably, the profile of the distal portion is rectilinear. This design facilitates anchoring when setting concrete.

Avantageusement, comme illustré à la figure 7, la pose d'un tel dispositif de dilatation s'effectuera de manière judicieuse en proposant de disposer de part et d'autre au moins un sinon deux dispositifs de positionnement et de maintien 20, d'adapter parfaitement la disposition desdits dispositifs permettant un réglage en hauteur tout en assurant une verticalité parfaite. Ceci permet d'obtenir une meilleure stabilité lors du bétonnage.Advantageously, as illustrated in figure 7 , the installation of such a dilation device will be carried out judicious in proposing to have on each side at least one or two positioning and holding devices 20, to perfectly adapt the arrangement of said devices allowing adjustment in height while ensuring perfect verticality. This makes it possible to obtain better stability during concreting.

Claims (5)

  1. A device designed to establish a connection between two adjacent slabs, preferably concrete slabs, by equipping the expansion joint located between the two slabs, said device assuming the form of a metal profile or two metal profiles (1, 2) positioned face-to-face and the device being provided with load transfer elements (4), such as projections or studs, positioned at a first defined height as well as anchoring elements (5) positioned at a second defined height, said anchoring elements being positioned on either side of the profile(s), either in an alternating manner or facing each other, wherein the anchoring elements assume the form of a flat metal sheet having a distal part (11) and a proximal part (10) and which has, in the distal part, an opening or recess (15) allowing the passage of a positioning and maintaining device (20) or means for fastening a positioning and maintaining device (20), characterized in that said flat metal sheets are
    • positioned essentially parallel to the plane (100) of the slabs, or
    • slightly bent such that the distal part (11) of the anchoring element (5) is essentially perpendicular to the profiles (1, 2) and therefore parallel to the plane (100) of the slabs,
    and in that the second height is greater than the first height, such that during use, the anchoring elements are positioned in the upper part of the device.
  2. The device according to claim 1, characterized in that the anchoring elements (5) have orifices (16) in the proximal part (10).
  3. The device according to claim 2, characterized in that the diameter or maximum dimension of the orifices (16) present in the proximal part (10) is smaller than that of the opening or recess (15) present in the distal part (11) of the anchoring elements (5).
  4. The device according to any one of the preceding claims, characterized in that the set of anchoring elements (5), and more particularly the distal parts (11), are connected to one another by a junction bar (14) positioned essentially parallel to the profiles (1, 2).
  5. The device according to any one of the preceding claims, characterized in that the edges (17) of the metal sheet making it possible to produce the anchoring elements (5) have a corrugated profile on its proximal part (10) and preferably a rectilinear profile (11) on its distal part.
EP09152321.7A 2009-02-06 2009-02-06 Device for fitting an expansion joint, in particular an expansion joint between concrete slabs Not-in-force EP2216442B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09152321.7A EP2216442B1 (en) 2009-02-06 2009-02-06 Device for fitting an expansion joint, in particular an expansion joint between concrete slabs
AU2010200404A AU2010200404A1 (en) 2009-02-06 2010-02-04 Device for Fitting an Expansion Joint, in Particular an Expansion Joint Between Concrete Slabs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09152321.7A EP2216442B1 (en) 2009-02-06 2009-02-06 Device for fitting an expansion joint, in particular an expansion joint between concrete slabs

Publications (2)

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EP2216442A1 EP2216442A1 (en) 2010-08-11
EP2216442B1 true EP2216442B1 (en) 2015-10-14

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AU (1) AU2010200404A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882804A (en) * 1954-02-18 1959-04-21 Texas Foundries Inc Load transfer device
BE1012984A3 (en) * 1998-04-29 2001-07-03 Eurosteel Sa STRUCTURE FOR PAVING SEAL MATERIAL moldable.
ATE352672T1 (en) 2002-08-16 2007-02-15 Permaban Ltd CONCRETE FLOOR SLAB
GB0409216D0 (en) * 2004-04-24 2004-05-26 Metaform Ltd Multi purpose screed rail, formwork and joint protection mechanism
GB0417760D0 (en) * 2004-08-10 2004-09-08 Devlin Seamus M Slab joint
ATE471405T1 (en) 2006-09-22 2010-07-15 Plakabeton Sa DEVICE FOR FORMING AN EXPANSION JOINT BETWEEN CONCRETE PANELS

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AU2010200404A1 (en) 2010-08-26

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