EP0394401B1 - Device for connecting two road section separated by an expansion joint - Google Patents

Device for connecting two road section separated by an expansion joint Download PDF

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Publication number
EP0394401B1
EP0394401B1 EP89911253A EP89911253A EP0394401B1 EP 0394401 B1 EP0394401 B1 EP 0394401B1 EP 89911253 A EP89911253 A EP 89911253A EP 89911253 A EP89911253 A EP 89911253A EP 0394401 B1 EP0394401 B1 EP 0394401B1
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EP
European Patent Office
Prior art keywords
joint
deformable
bellows
elements
connection device
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EP89911253A
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German (de)
French (fr)
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EP0394401A1 (en
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François Conversy
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion 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
    • E01C11/12—Packing of metal and plastic or elastic materials
    • E01C11/126—Joints with only metal and prefabricated packing or filling

Definitions

  • the present invention relates to a connection device between two parts of the roadway separated by an expansion joint, such as exists in bridges or other engineering structures.
  • This device is intended to seal the seal while providing vehicles with satisfactory rolling conditions.
  • the devices of this kind comprise a plurality of joint covers arranged end to end above the joint, each of said joint covers being in the form of a molded elastomer part in which are included metal parts.
  • the known joint covers constituted by a plurality of identical joint covers arranged end to end and each of which is a part molded of elastomer, have an upper face which is presented in the form of a substantially flat surface in which are formed rectilinear grooves parallel to the seals (see, for example, document US-A-4 131 382).
  • the invention aims to remedy these drawbacks by producing a device consisting of joint covers which do not have rectilinear grooves parallel to the joint and which have a lower manufacturing price than known devices.
  • connection device between two parts of the floor separated by an expansion joint consists of a plurality of joint covers arranged end to end.
  • Each joint cover comprises at least one deformable zone extending parallel to the joint, comprised between two fastening elements linked respectively to the two parts of roadways.
  • this connection device between two parts of the roadway is characterized in that this deformable zone is constituted by an alternation of load-bearing elements and bellows, deformable in all horizontal directions, the length of the bellows measured in the direction perpendicular to the joint being less than that of the deformable support elements, and in that, on each side of each bellows, are located two non-deformable support elements, these non-deformable support elements extending in a direction transverse to the joint in the space between two deformable load-bearing elements.
  • Each of the deformable bearing elements comprises a horizontal metal plate situated at the upper part of the joint cover, carried by two elastomer blocks, deformable by horizontal shear, arranged symmetrically with respect to a vertical plane parallel to the joint.
  • Each of the bellows consists of an elastomer wall, continuous, relatively thin, non-planar. So a deformable zone comprises alternating bellows comprised between deformable load-bearing elements (which support the load of the vehicles). Because the bellows are shorter, in the direction perpendicular to the joint, than the deformable support elements, the connection between a deformable zone and the elements which are adjacent to it does not have a rectilinear groove parallel to the expansion joint.
  • connection between a deformable zone, constituted by the alternation of bellows and deformable load-bearing elements, and each of the elements which is adjacent to it is constituted by a groove of crenellated shape.
  • This crenellated groove allows the deformation of the bellows and deformable load-bearing elements, without creating a noticeable impact on the passage of the wheels or of danger for the cyclist and the motorcyclist.
  • connection device according to the invention shown in FIG. 1 ensures the rolling continuity between the two parts of roadway 1a and 1b separated by the expansion joint 3. It is constituted by a plurality of joint covers 2 placed end to end .
  • Each joint cover 2 (see FIGS. 2 to 5) has a vertical plane of symmetry, parallel to the joint 3. It comprises a deformable zone 4 situated between two fastening elements 5a and 5b linked respectively to the parts of roadway 1a and 1b by the screw 12.
  • the deformable zone 4 is constituted by deformable support elements 6 between which are located elastomer bellows 7.
  • the support elements 6 and the bellows 7 are deformable horizontally in any horizontal direction and, in particular, in the direction perpendicular to the joint 3
  • the length of the bellows 7 measured in this direction is less than that of the carrying elements 6.
  • a joint cover 2 is limited by two vertical planes perpendicular to the joint 3, located so that at the ends of the deformable zone 4 are half-bellows 7a and 7b, the assembly consisting of two adjacent half-bellows 7a and 7b having the same shape as a bellows 7.
  • Each of the deformable bearing elements 6 (see in particular FIG. 5) comprises a horizontal metal plate 8 located at the upper part of the joint cover, carried by two symmetrical blocks of elastomer 9a and 9b, deformable by horizontal shear.
  • the upper face of the metal plate 8 is covered by a small thickness of elastomer 17 which, in particular, provides protection against corrosion of said metal plate 8, but the presence of which is not essential.
  • the connection between the fastening elements 5a and 5b and the deformable zone 4, formed by the alternation of bellows 7 and deformable bearing elements 6, is constituted by a groove 50a, 51a; 50b, 51b of crenellated form.
  • each of the elastomer bellows 7 comprises on either side of the vertical plane of symmetry two oblique walls 15a and 15b placed between two oblique walls 13a and 13b.
  • the walls 13a and 15a are connected at their upper part by a horizontal wall 14a.
  • the walls 13b and 15b are connected at their upper part by a horizontal wall 14b.
  • the walls 15a and 15b are connected at their lower part by a symmetrical wall 16, the level of which varies from the middle of the bellows, where its level is minimal, at the connection of the wall 16 with the deformable bearing elements 6 which frame the bellows 7, where its level is maximum.
  • a fastening element 5a or 5b comprises non-deformable support elements 18 in which are housed housings 19 intended to receive the heads of the screws 12 and two non-deformable support elements of the ends 18a and 18b.
  • To the base of the fixing element 5a or 5b is a horizontal metal plate 10 bordered on the side opposite the joint 3 by a vertical metal plate 11.
  • the metal plates 10 belonging respectively to the fastening elements 5a and 5b limit downwards and constitute respectively the support of the elastomer blocks 9a and 9b which form part of the deformable bearing elements 6.
  • a fastening element 5a or 5b is secured to the road parts 1a or 1b by screws 12 which pass through the metal plates 10 and the metal reinforcements 20 by holes 21; said screws 12 are isolated from concrete by plastic tubes 22 and are screwed into anchors 23 embedded in the concrete of the road parts 1a or 1b.
  • Figure 6 shows all of the metal parts 10, 11, 20 and 20a included in a fixing element 5a or 5b. Preferably these parts are welded to each other. They can be replaced by a single molded metal part.
  • a continuous tongue 24 projects outwards from the end 26b of each joint cover 2. It connects the underside of the fixing element 5a to the underside of the fixing element 5b and it follows the shape of the half-bellows 7b.
  • a continuous groove 25 is formed at the end 26a of each joint cover 2. It connects the underside of the fixing element 5a to the underside of the fixing element 5b and it follows the form of half-bellows 7a.
  • joint cover 2 limited by two vertical planes perpendicular to the joint 3, located so that the joint cover 2 ends in half-bellows 7a and 7b and half-elements non-deformable carriers 18a and 18b.
  • connection device according to the invention shown in FIG. 7 ensures rolling continuity between the two parts of roadway 1a and 1b separated by the expansion joint 3. It is constituted by a plurality of joint covers 27 placed end to end .
  • a joint cover 27 (see FIGS. 7 to 11) has a vertical plane of symmetry, parallel to the joint. It comprises two deformable zones 4a and 4b each located between a fixing element 28a or 28b and the intermediate element 29 which spans the expansion joint 3.
  • the deformable zones 4a and 4b are identical to the deformable zone 4 of the joint cover 2.
  • planar upper face 30 of the intermediate element 29 is limited on either side of the joint 3 by a crenellated line, the projecting parts of which are formed by the top of the non-deformable support elements 31, 31a and 31b situated between the deformable support elements 6.
  • the deformable zone 4a is bounded horizontally on the side of the fixing element 28a by the crenellated groove 50a, 51a, and on the side of the intermediate element 29 by the crenellated groove 50c, 51c.
  • the deformable zone 4b is horizontally limited on the side of the fixing element 28b by the crenellated groove 50b, 51b, and on the side of the intermediate element 29 by the crenellated groove 50d, 51d.
  • the intermediate element 29 comprises, on the side of the end 32a of the joint cover 27 of the teeth 33a and, on the side of the end 32b of the joint cover 27 of the teeth 33b designed so that, when the joint covers 27 are in service, the teeth 33a and 33b of two successive joint covers 27 engage so as to make the ends of the intermediate elements 29 integral in their movements perpendicular to the expansion joint 3, movements which occur in particular under the effect vehicle braking.
  • the metal assembly 48 incorporated in the intermediate element 29 is shown in FIG. 12, it comprises two lower metal plates 34a and 34b and an upper metal plate 35 connected by metal bars 36.
  • the elastomer blocks 9b of the deformable zone 4a and the elastomer blocks 9a of the deformable zone 4b are supported respectively.
  • elastomer soles 38 and 38b which bear respectively on the parts 1a and 1b of the roadway.
  • the elastomer soles 38a and 38b transmit to parts 1a and 1b of the roadway, the loads supported by the intermediate element 29. They are relatively thick because they must distribute said loads even when parts 1a and 1b of the roadway are slightly offset vertically.
  • the upper metal plate 35 (see FIG. 12) has teeth 37a at one of its ends and teeth 37a and 37b at the other end of teeth 37a and 37b are incorporated respectively into teeth 33a and 33b of intermediate element 29.
  • the upper face of the upper metal plate 35 (see in particular FIGS. 10 and 11) is covered by a small thickness of elastomer 39 which, in particular, provides protection against corrosion of said upper metal plate 35, but whose presence is not essential.
  • the ends 36a of the metal bars are incorporated into the non-deformable support elements 31, 31a, 31b which they reinforce.
  • the fixing elements 28a and 28b of the joint cover 27 are identical to the fixing elements 5a and 5b of the joint cover 2 except that below the horizontal metal plates 10 (see in particular FIGS. 10 and 11) we have placed a fur 40 such that the upper faces of the horizontal metal plates 10 and the horizontal metal plates 34a and 34b are at the same level so as to maintain the symmetry of the pairs of elastomer blocks 9a and 9b deformable by shearing.
  • This symmetry is the condition so that, when the expansion joint 3 opens or closes, the intermediate element 29 does not tend to lift.
  • a continuous tongue 41 projects outwards from the end 32b of each joint cover 27. It connects the lower face of the fixing element 28a to the lower face of the fixing element 28b by following the shape of the half-bellows 7b and passing below the teeth 37b.
  • a continuous groove 42 (see FIG. 8) is provided at the end 32a of each joint cover 27. It recesses in hollow the shape of the tongue 41.
  • joint cover 27 limited by two vertical planes perpendicular to the joint 3, situated so that the joint cover 27 ends in half-bellows 7a and 7b and non-deformable load-bearing half-elements 18a, 18b, 31a and 31b.
  • each of the fastening elements 5a or 5b could consist of a single piece of a metal that is not very sensitive to corrosion, such as an aluminum-based alloy, the only elastomer parts being then those which constitute the deformable zone 4, that is to say the deformable carrying elements 6 and the bellows 7, 7a and 7b.
  • the fastening elements 28a or 28b as well as the intermediate element 29, with the exclusion of the elastomer soles 38a and 38b could be constituted by parts of a metal not very sensitive to corrosion, the only elastomer parts then being the elastomer soles 38a and 38b, the deformable bearing elements 6 and the bellows 7, 7a and 7b.
  • the joint cover 47 shown in Figure 13 has a single deformable area 4. It differs from the joint cover 2 shown in Figures 1 to 6 by the design of the fastening elements 43a and 43b.
  • the housings 45 and the holes 46 intended to receive the heads and the rods of the screws 12 respectively, formed in the current non-deformable load-bearing elements 44 are oblong, that is to say that they are elongated in the direction parallel to the expansion joint, this in order to make easier a precise fitting of the joint covers 47,
  • housings 45a and grooves 46a are formed such that, when the joint covers 47 are mounted, the assembly consisting of two non-deformable support elements 44a and 44b joined together, belonging to two neighboring joint covers 47 has the same shape as a current non-deformable support element 44, which makes it possible to install screws 12 bearing on two neighboring joint covers 47.

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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)

Abstract

The device for connecting two road sections (1a, 1b), separated by an expansion joint (3) is comprised of a plurality of joint covers (2) arranged butt-to-butt and wherein each joint cover (2) has at least one deformable area (4) which extends parallel to the joint (3), delimited by two fixing elements (5a and 5b) connected respectively to the two road sections (1a, 1b). The deformable area (4) is formed by alternate deformable carrier elements (6) and by bellows (7). On either side of each bellows (7) two indeformable carrier elements (18) are provided which belong respectively to the fixing elements (5a, 5b). Each of the deformable carrier elements (6) has a horizontal metal plate situated at the upper part of the joint cover (2) and supported by two elastomer blocks which are deformable by horizontal shearing and which are arranged symmetrically with respect to a vertical plane parallel to the joint (3). Each of the bellows (6) is provided with a continuous, relatively thin, non planar elastomer wall. Utilization for improving the running of vehicles on road joints.

Description

La présente invention concerne un dispositif de raccordement entre deux parties de chaussée séparées par un joint de dilatation, tel qu'il en existe dans les ponts ou autres ouvrages d'art.The present invention relates to a connection device between two parts of the roadway separated by an expansion joint, such as exists in bridges or other engineering structures.

Ce dispositif est destiné à assurer l'étanchéité du joint tout en offrant aux véhicules des conditions de roulement satisfaisantes.This device is intended to seal the seal while providing vehicles with satisfactory rolling conditions.

Dans une forme connue de réalisation, les dispositifs de ce genre comportent une pluralité de couvre-joints disposés bout à bout au dessus du joint, chacun desdits couvre-joints se présentant sous la forme d'une pièce moulée en élastomère dans laquelle sont incluses des pièces métalliques.In a known embodiment, the devices of this kind comprise a plurality of joint covers arranged end to end above the joint, each of said joint covers being in the form of a molded elastomer part in which are included metal parts.

Pour permettre les mouvements du joint de dilatation tout en assurant l'étanchéité, les couvre-joints connus constitués par une pluralité de couvre-joints identiques disposés bout à bout et dont chacun est une pièce moulée en élastomère, ont une face supérieure qui se présente sous la forme d'une surface sensiblement plane dans laquelle sont ménagées des rainures rectilignes parallèles au joints (voir, par exemple, le document US-A-4 131 382).To allow the movements of the expansion joint while ensuring sealing, the known joint covers constituted by a plurality of identical joint covers arranged end to end and each of which is a part molded of elastomer, have an upper face which is presented in the form of a substantially flat surface in which are formed rectilinear grooves parallel to the seals (see, for example, document US-A-4 131 382).

Cette disposition présente les inconvénients suivants:

  • Lorsque le joint est placé perpendiculairement à la trajectoire des véhicules, le passage des roues sur ces rainures est ressenti comme un choc par les passagers des véhicules ce qui nuit à leur confort, particulièrement lorsque ces rainures présentent une largeur maximale, c'est à dire lorsque le joint est à son ouverture maximale.
  • Lorsque le joint est placé parallèlement à la trajectoire des véhicules, ces rainures constituent un réel danger pour les bicyclettes et les motocyclettes car elles peuvent entraîner leur chute.
This arrangement has the following disadvantages:
  • When the joint is placed perpendicular to the trajectory of the vehicles, the passage of the wheels on these grooves is felt as a shock by the passengers of the vehicles which affects their comfort, particularly when these grooves have a maximum width, that is to say when the joint is at its maximum opening.
  • When the joint is placed parallel to the path of vehicles, these grooves constitute a real danger for bicycles and motorcycles because they may cause them to fall.

L'invention vise à remédier à ces inconvénients en réalisant un dispositif constitué de couvre-joints ne comportant pas de rainures rectilignes parallèles au joint et d'un prix de fabrication inférieur à celui des dispositifs connus.The invention aims to remedy these drawbacks by producing a device consisting of joint covers which do not have rectilinear grooves parallel to the joint and which have a lower manufacturing price than known devices.

Le dispositif de raccordement entre deux parties de chaussée séparées par un joint de dilatation, visé par l'invention, est constitué par une pluralité de couvre-joints disposés bout à bout. Chaque couvre-joint comprend au moins une zone déformable s'étendant parallèlement au joint, comprise entre deux éléments de fixation liés respectivement aux deux parties de chaussées.The connection device between two parts of the floor separated by an expansion joint, aimed at by the invention, consists of a plurality of joint covers arranged end to end. Each joint cover comprises at least one deformable zone extending parallel to the joint, comprised between two fastening elements linked respectively to the two parts of roadways.

Suivant l'invention, ce dispositif de raccordement entre deux parties de chaussée est caractérisé en ce que cette zone déformable est constituée par une alternance d'éléments porteurs et de soufflets, déformables dans toutes les directions horizontales, la longueur des soufflets mesurée dans la direction perpendiculaire au joint étant inférieure à celle des éléments porteurs déformables, et en ce que, de part et d'autre de chaque soufflet, sont situés deux éléments porteurs indéformables, ces éléments porteurs indéformables s'étendant dans une direction transversale au joint dans l'espace compris entre deux éléments porteurs déformables. Chacun des éléments porteurs déformables comporte une plaque métallique horizontale située à la partie supérieure du couvre-joint, portée par deux blocs d'élastomère, déformables par cisaillement horizontal, disposés symétriquement par rapport à un plan vertical parallèle au joint. Chacun des soufflets est constitué par une paroi en élastomère, continue, relativement mince, non plane. Ainsi une zone déformable comprend une alternance de soufflets compris entre des éléments porteurs déformables (qui supportent la charge des véhicules). Du fait que les soufflets soient moins longs, dans la direction perpendiculaire au joint, que les éléments porteurs déformables, le raccordement entre une zone déformable et les éléments qui lui sont adjacents ne comporte pas de rainure rectiligne parallèle au joint de dilatation.According to the invention, this connection device between two parts of the roadway is characterized in that this deformable zone is constituted by an alternation of load-bearing elements and bellows, deformable in all horizontal directions, the length of the bellows measured in the direction perpendicular to the joint being less than that of the deformable support elements, and in that, on each side of each bellows, are located two non-deformable support elements, these non-deformable support elements extending in a direction transverse to the joint in the space between two deformable load-bearing elements. Each of the deformable bearing elements comprises a horizontal metal plate situated at the upper part of the joint cover, carried by two elastomer blocks, deformable by horizontal shear, arranged symmetrically with respect to a vertical plane parallel to the joint. Each of the bellows consists of an elastomer wall, continuous, relatively thin, non-planar. So a deformable zone comprises alternating bellows comprised between deformable load-bearing elements (which support the load of the vehicles). Because the bellows are shorter, in the direction perpendicular to the joint, than the deformable support elements, the connection between a deformable zone and the elements which are adjacent to it does not have a rectilinear groove parallel to the expansion joint.

Ainsi, on limite le choc engendré lors du passage des roues des véhicules ou le danger de chute pour les cyclistes et les motocyclistes.This limits the shock generated during the passage of vehicle wheels or the risk of falling for cyclists and motorcyclists.

Selon une version préférée de l'invention, le raccordement entre une zone déformable, constituée par l'alternance de soufflets et d'éléments porteurs déformables, et chacun des éléments qui lui est adjacent est constituée par une rainure de forme crénelée. Cette rainure crénelée permet la déformation des soufflets et des éléments porteurs déformables, sans créer de choc notable au passage des roues ou de danger pour le cycliste et le motocycliste.According to a preferred version of the invention, the connection between a deformable zone, constituted by the alternation of bellows and deformable load-bearing elements, and each of the elements which is adjacent to it is constituted by a groove of crenellated shape. This crenellated groove allows the deformation of the bellows and deformable load-bearing elements, without creating a noticeable impact on the passage of the wheels or of danger for the cyclist and the motorcyclist.

D'autres particularités et avantages de la présente invention apparaitront encore dans la description ci-après.Other features and advantages of the present invention will become apparent in the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs:

  • la figure 1 est une vue d'ensemble, en perspective et coupe partielle, d'une forme de réalisation de dispositif de raccordement selon l'invention dont les couvre-joints comportent une seule zone déformable,
  • la figure 2 est une vue en perspective d'un des couvre-joints de la figure 1,
  • la figure 3 est une vue partielle en coupe et en perspective du dispositif de raccordement de la figure 1,
  • la figure 4 est une vue en coupe transversale, au milieu d'un soufflet, du dispositif de raccordement de la figure 1,
  • la figure 5 est une vue en coupe transversale, au milieu d'un élément porteur déformable, du dispositif de raccordement de la figure 1,
  • la figure 6 est une vue en perspective de l'ensemble des pièces métalliques incluses dans un des éléments de fixation du couvre-joint de la figure 2,
  • la figure 7 est une vue d'ensemble, en perspective et coupe partielle, d'une forme de réalisation de dispositif de raccordement selon l'invention dont les couvre-joints comportent deux zones déformables situées de part et d'autre d'un élément intermédiaire,
  • la figure 8 est une vue en perspective d'un des couvre-joints de la figure 7,
  • la figure 9 est une vue partielle en coupe et en perspective du couvre-joint de la figure 8,
  • la figure 10 est une coupe transversale du couvre-joint de la figure 8 située au milieu d'un soufflet,
  • la figure 11 est une coupe transversale du couvre-joint de la figure 8 située au milieu d'un élément porteur déformable,
  • la figure 12 est une vue en perspective de la pièce métallique incluse dans l'élément intermédiaire du couvre-joint de la figure 8,
  • la figure 13 est une vue en perspective d'une autre forme de réalisation de couvre-joint selon l'invention comportant une seule zone déformable.
In the appended drawings, given by way of nonlimiting examples:
  • FIG. 1 is an overall view, in perspective and partial section, of an embodiment of a connection device according to the invention, the joint covers of which comprise a single deformable zone,
  • FIG. 2 is a perspective view of one of the joint covers of FIG. 1,
  • Figure 3 is a partial sectional view and perspective of the connection device of FIG. 1,
  • FIG. 4 is a cross-sectional view, in the middle of a bellows, of the connection device of FIG. 1,
  • FIG. 5 is a cross-sectional view, in the middle of a deformable support element, of the connection device of FIG. 1,
  • FIG. 6 is a perspective view of all the metal parts included in one of the fastening elements of the joint cover of FIG. 2,
  • FIG. 7 is an overall view, in perspective and partial section, of an embodiment of a connection device according to the invention, the joint covers of which comprise two deformable zones situated on either side of an element intermediate,
  • FIG. 8 is a perspective view of one of the joint covers of FIG. 7,
  • FIG. 9 is a partial view in section and in perspective of the joint cover of FIG. 8,
  • FIG. 10 is a cross section of the joint cover of FIG. 8 located in the middle of a bellows,
  • FIG. 11 is a cross section of the joint cover of FIG. 8 located in the middle of a deformable support element,
  • FIG. 12 is a perspective view of the metal part included in the intermediate element of the joint cover of FIG. 8,
  • Figure 13 is a perspective view of another embodiment of joint cover according to the invention comprising a single deformable zone.

Le dispositif de raccordement selon l'invention montré par la figure 1 assure la continuité de roulement entre les deux parties de chaussée la et 1b séparées par le joint de dilatation 3. Il est constitué par une pluralité de couvre-joints 2 placés bout à bout.The connection device according to the invention shown in FIG. 1 ensures the rolling continuity between the two parts of roadway 1a and 1b separated by the expansion joint 3. It is constituted by a plurality of joint covers 2 placed end to end .

Chaque couvre-joint 2 (voir figures 2 à 5) comporte un plan de symétrie vertical, parallèle au joint 3. Il comprend une zone déformable 4 située entre deux éléments de fixation 5a et 5b liés respectivement aux parties de chaussée 1a et 1b par les vis 12.Each joint cover 2 (see FIGS. 2 to 5) has a vertical plane of symmetry, parallel to the joint 3. It comprises a deformable zone 4 situated between two fastening elements 5a and 5b linked respectively to the parts of roadway 1a and 1b by the screw 12.

La zone déformable 4 est constituée par des éléments porteurs déformables 6 entre lesquels sont situés des soufflets en élastomère 7. Les éléments porteurs 6 et les soufflets 7 sont déformables horizontalement dans toute les directions horizontales et, en particulier, dans la direction perpendiculaire au joint 3. La longueur des soufflets 7 mesurée dans cette direction est inférieure à celle des éléments porteurs 6.The deformable zone 4 is constituted by deformable support elements 6 between which are located elastomer bellows 7. The support elements 6 and the bellows 7 are deformable horizontally in any horizontal direction and, in particular, in the direction perpendicular to the joint 3 The length of the bellows 7 measured in this direction is less than that of the carrying elements 6.

Dans l'exemple choisi un couvre-joint 2 est limité par deux plans verticaux perpendiculaires au joint 3, situés de telle sorte qu'aux extrémités de la zone déformable 4 se trouvent des demi-soufflets 7a et 7b, l'ensemble constitué par deux demi-soufflets 7a et 7b adjacents ayant même forme qu'un soufflet 7.In the example chosen a joint cover 2 is limited by two vertical planes perpendicular to the joint 3, located so that at the ends of the deformable zone 4 are half-bellows 7a and 7b, the assembly consisting of two adjacent half-bellows 7a and 7b having the same shape as a bellows 7.

Chacun des éléments porteurs déformables 6 (voir en particulier la figure 5) comporte une plaque métallique 8 horizontale située à la partie supérieure du couvre-joint, portée par deux blocs d'élastomère 9a et 9b symétriques, déformables par cisaillement horizontal. La face supérieure de la plaque métallique 8 est recouverte par une faible épaisseur d'élastomère 17 qui, en particulier, assure la protection contre la corrosion de ladite plaque métallique 8, mais dont la présence n'est pas indispensable. On voit notamment sur les figures 1 à 4, que le raccordement entre les éléments de fixation 5a et 5b et la zone déformable 4, constituée par l'alternance de soufflets 7 et d'éléments porteurs déformables 6, est constituée par une rainure 50a, 51a; 50b, 51b de forme crénelée.Each of the deformable bearing elements 6 (see in particular FIG. 5) comprises a horizontal metal plate 8 located at the upper part of the joint cover, carried by two symmetrical blocks of elastomer 9a and 9b, deformable by horizontal shear. The upper face of the metal plate 8 is covered by a small thickness of elastomer 17 which, in particular, provides protection against corrosion of said metal plate 8, but the presence of which is not essential. It can be seen in particular in FIGS. 1 to 4, that the connection between the fastening elements 5a and 5b and the deformable zone 4, formed by the alternation of bellows 7 and deformable bearing elements 6, is constituted by a groove 50a, 51a; 50b, 51b of crenellated form.

Dans une forme préférée de réalisation, chacun des soufflets en élastomère 7 (voir en particulier la figure 4) comporte de part et d'autre du plan de symétrie vertical deux parois obliques 15a et 15b placées entre deux parois obliques 13a et 13b. Les parois 13a et 15a sont reliées à leur partie supérieure par une paroi horizontale 14a. Les parois 13b et 15b sont reliées à leur partie supérieure par une paroi horizontale 14b. Les parois 15a et 15b sont reliées à leur partie inférieure par une paroi symétrique 16 dont le niveau varie du milieu du soufflet, où son niveau est minimal, à la liaison de la paroi 16 avec les éléments porteurs déformables 6 qui encadrent le soufflet 7, où son niveau est maximal.In a preferred embodiment, each of the elastomer bellows 7 (see in particular FIG. 4) comprises on either side of the vertical plane of symmetry two oblique walls 15a and 15b placed between two oblique walls 13a and 13b. The walls 13a and 15a are connected at their upper part by a horizontal wall 14a. The walls 13b and 15b are connected at their upper part by a horizontal wall 14b. The walls 15a and 15b are connected at their lower part by a symmetrical wall 16, the level of which varies from the middle of the bellows, where its level is minimal, at the connection of the wall 16 with the deformable bearing elements 6 which frame the bellows 7, where its level is maximum.

Il va de soi que les différentes parois 13a, 13b, 14a, 14b, 15a, 15b et 16 peuvent être raccordées par des portions de paroi courbes sans sortir du cadre de la présente invention.It goes without saying that the different walls 13a, 13b, 14a, 14b, 15a, 15b and 16 can be connected by curved wall portions without departing from the scope of the present invention.

Un élément de fixation 5a ou 5b comporte des éléments porteurs indéformables 18 dans lesquels sont ménagés des logements 19 destinés à recevoir les têtes des vis 12 et deux éléments porteurs indéformables d'extrémités 18a et 18b. A la base de l'élément de fixation 5a ou 5b se trouve une plaque métallique 10 horizontale bordée du côté opposé au joint 3 par une plaque métallique verticale 11. Au dessus de la plaque métallique 10 on trouve des renforts métalliques 20 qui s'incorporent aux éléments porteurs indéformables 18 et deux renforts métalliques 20a qui s'incorporent aux éléments porteurs indéformables d'extrémité 18a et 18b. Les plaques métalliques 10 appartenant respectivement aux éléments de fixation 5a et 5b limitent vers le bas et constituent respectivement l'appui des blocs d'élastomère 9a et 9b qui font partie des éléments porteurs déformables 6.A fastening element 5a or 5b comprises non-deformable support elements 18 in which are housed housings 19 intended to receive the heads of the screws 12 and two non-deformable support elements of the ends 18a and 18b. To the base of the fixing element 5a or 5b is a horizontal metal plate 10 bordered on the side opposite the joint 3 by a vertical metal plate 11. Above the metal plate 10 there are metal reinforcements 20 which are incorporated into the elements non-deformable carriers 18 and two metal reinforcements 20a which are incorporated into the non-deformable end-bearing elements 18a and 18b. The metal plates 10 belonging respectively to the fastening elements 5a and 5b limit downwards and constitute respectively the support of the elastomer blocks 9a and 9b which form part of the deformable bearing elements 6.

Un élément de fixation 5a ou 5b est solidarisé aux parties de chaussée 1a ou 1b par des vis 12 qui traversent les plaques métalliques 10 et les renforts métalliques 20 par des perçages 21; lesdites vis 12 sont isolées du béton par les tubes en plastique 22 et sont vissées dans les ancrages 23 noyés dans le béton des parties de chaussée 1a ou 1b.A fastening element 5a or 5b is secured to the road parts 1a or 1b by screws 12 which pass through the metal plates 10 and the metal reinforcements 20 by holes 21; said screws 12 are isolated from concrete by plastic tubes 22 and are screwed into anchors 23 embedded in the concrete of the road parts 1a or 1b.

La figure 6 montre l'ensemble des pièces métalliques 10, 11, 20 et 20a incluses dans un élément de fixation 5a ou 5b. De préférence ces pièces sont soudées les unes aux autres. Elles peuvent être remplacées par une pièce métallique unique moulée.Figure 6 shows all of the metal parts 10, 11, 20 and 20a included in a fixing element 5a or 5b. Preferably these parts are welded to each other. They can be replaced by a single molded metal part.

Une languette 24 continue (voir figure 1) fait saillie vers l'extérieur de l'extrémité 26b de chaque couvre-joint 2. Elle relie la face inférieure de l'élément de fixation 5a à la face inférieure de l'élément de fixation 5b et elle suit la forme du demi-soufflet 7b. Une gorge 25 continue (voir figure 2) est ménagée à l'extrémité 26a de chaque couvre-joint 2. Elle relie la face inférieure de l'élément de fixation 5a à la face inférieure de l'élément de fixation 5b et elle suit la forme du demi-soufflet 7a. Lorsque les couvre-joints 2 sont en service, la languette 24 et la gorge 25 de deux couvre-joints 2 successifs s'enclenchent de manière à assurer l'étanchéité de la jonction entre lesdits couvre-joints 2 successifs.A continuous tongue 24 (see FIG. 1) projects outwards from the end 26b of each joint cover 2. It connects the underside of the fixing element 5a to the underside of the fixing element 5b and it follows the shape of the half-bellows 7b. A continuous groove 25 (see FIG. 2) is formed at the end 26a of each joint cover 2. It connects the underside of the fixing element 5a to the underside of the fixing element 5b and it follows the form of half-bellows 7a. When the joint covers 2 are in service, the tongue 24 and the groove 25 of two successive joint covers 2 engage so as to seal the junction between said successive joint covers 2.

A noter qu'on a choisi de décrire complètement le couvre-joint 2 limité par deux plans verticaux perpendiculaires au joint 3, situés de telle sorte que le couvre-joint 2 se termine par des demi-soufflets 7a et 7b et des demi-éléments porteurs indéformables 18a et 18b. On pourrait aussi limiter chaque couvre-joint 2 par deux plans verticaux situés de telle sorte qu'ils coupent par leur milieu des éléments porteurs déformables 6.Note that we have chosen to completely describe the joint cover 2 limited by two vertical planes perpendicular to the joint 3, located so that the joint cover 2 ends in half-bellows 7a and 7b and half-elements non-deformable carriers 18a and 18b. We could also limit each joint cover 2 by two vertical planes located so that they cut through their middle deformable load-bearing elements 6.

Le dispositif de raccordement selon l'invention montré par la figure 7 assure la continuité de roulement entre les deux parties de chaussée 1a et 1b séparées par le joint de dilatation 3. Il est constitué par une pluralité de couvre-joints 27 placés bout à bout.The connection device according to the invention shown in FIG. 7 ensures rolling continuity between the two parts of roadway 1a and 1b separated by the expansion joint 3. It is constituted by a plurality of joint covers 27 placed end to end .

Un couvre-joint 27 (voir figures 7 à 11) admet un plan de symétrie vertical, parallèle au joint. Il comprend deux zones déformables 4a et 4b chacune située entre un élément de fixation 28a ou 28b et l'élément intermédiaire 29 qui enjambe le joint de dilatation 3.A joint cover 27 (see FIGS. 7 to 11) has a vertical plane of symmetry, parallel to the joint. It comprises two deformable zones 4a and 4b each located between a fixing element 28a or 28b and the intermediate element 29 which spans the expansion joint 3.

Les zones déformables 4a et 4b sont identiques à la zone déformable 4 du couvre-joint 2.The deformable zones 4a and 4b are identical to the deformable zone 4 of the joint cover 2.

La face supérieure 30 plane de l'élément intermédiaire 29 est limitée de part et d'autre du joint 3 par une ligne crénelée dont les parties saillantes sont constituées par le haut des éléments porteurs indéformables 31, 31a et 31b situés entre les éléments porteurs déformables 6.The planar upper face 30 of the intermediate element 29 is limited on either side of the joint 3 by a crenellated line, the projecting parts of which are formed by the top of the non-deformable support elements 31, 31a and 31b situated between the deformable support elements 6.

La zone déformable 4a est limitée horizontalement du côté de l'élément de fixation 28a par la rainure crénelée 50a, 51a, et du côté de l'élément intermédiaire 29 par la rainure crénelée 50c, 51c. La zone déformable 4b est limitée horizontalement du côté de l'élément de fixation 28b par la rainure crénelée 50b, 51b, et du côté de l'élément intermédiaire 29 par la rainure crénelée 50d, 51d.The deformable zone 4a is bounded horizontally on the side of the fixing element 28a by the crenellated groove 50a, 51a, and on the side of the intermediate element 29 by the crenellated groove 50c, 51c. The deformable zone 4b is horizontally limited on the side of the fixing element 28b by the crenellated groove 50b, 51b, and on the side of the intermediate element 29 by the crenellated groove 50d, 51d.

L'élément intermédiaire 29 comporte, du côté de l'extrémité 32a du couvre-joint 27 des dents 33a et, du côté de l'extrémité 32b du couvre-joint 27 des dents 33b conçues de telle sorte que, lorsque les couvre-joints 27 sont en service, les dents 33a et 33b de deux couvre-joints 27 successifs s'enclenchent de manière à rendre solidaires les extrémités des éléments intermédiaires 29 dans leur mouvements perpendiculaires au joint de dilatation 3, mouvements qui se produisent notamment sous l'effet du freinage des véhicules.The intermediate element 29 comprises, on the side of the end 32a of the joint cover 27 of the teeth 33a and, on the side of the end 32b of the joint cover 27 of the teeth 33b designed so that, when the joint covers 27 are in service, the teeth 33a and 33b of two successive joint covers 27 engage so as to make the ends of the intermediate elements 29 integral in their movements perpendicular to the expansion joint 3, movements which occur in particular under the effect vehicle braking.

L'ensemble métallique 48 incorporé à l'élément intermédiaire 29 est montré par la figure 12, il comprend deux plaques métalliques inférieures 34a et 34b et une plaque métallique supérieure 35 reliées par des barreaux métallliques 36.The metal assembly 48 incorporated in the intermediate element 29 is shown in FIG. 12, it comprises two lower metal plates 34a and 34b and an upper metal plate 35 connected by metal bars 36.

Sur les plaques métalliques inférieures 34a et 34b (voir en particulier la figure 11) s'appuient respectivement les blocs d'élastomère 9b de la zone déformable 4a et les blocs d'élastomère 9a de la zone déformable 4b. Au dessous des faces inférieures des plaques métalliques inférieures 34a et 34b se trouvent respectivement des semelles d'élastomère 38 et 38b qui prennent respectivement appui sur les parties 1a et 1b de la chaussée. Les semelles d'élastomère 38a et 38b transmettent aux parties 1a et 1b de la chaussée, les charges supportées par l'élément intermédiaire 29. Elles sont relativement épaisses car elles doivent répartir lesdites charges même lorsque les parties 1a et 1b de la chaussée sont légèrement décalées verticalement.On the lower metal plates 34a and 34b (see in particular FIG. 11), the elastomer blocks 9b of the deformable zone 4a and the elastomer blocks 9a of the deformable zone 4b are supported respectively. Below the lower faces of the lower metal plates 34a and 34b are respectively elastomer soles 38 and 38b which bear respectively on the parts 1a and 1b of the roadway. The elastomer soles 38a and 38b transmit to parts 1a and 1b of the roadway, the loads supported by the intermediate element 29. They are relatively thick because they must distribute said loads even when parts 1a and 1b of the roadway are slightly offset vertically.

La plaque métallique supérieure 35 (voir figure 12) comporte à une de ses extrémités des dents 37a et à l'autre extrémité des dents 37b, les dents 37a et 37b s'incorporent respectivement aux dents 33a et 33b de l'élément intermédiaire 29. La face supérieure de la plaque métallique supérieure 35 (voir en particulier les figures 10 et 11) est recouverte par une faible épaisseur d'élastomère 39 qui, en particulier, assure la protection contre la corrosion de ladite plaque métallique supérieure 35, mais dont la présence n'est pas indispensable.The upper metal plate 35 (see FIG. 12) has teeth 37a at one of its ends and teeth 37a and 37b at the other end of teeth 37a and 37b are incorporated respectively into teeth 33a and 33b of intermediate element 29. The upper face of the upper metal plate 35 (see in particular FIGS. 10 and 11) is covered by a small thickness of elastomer 39 which, in particular, provides protection against corrosion of said upper metal plate 35, but whose presence is not essential.

Les extrémités 36a des barreaux métalliques s'incorporent aux éléments porteurs indéformables 31, 31a, 31b qu'elles renforcent.The ends 36a of the metal bars are incorporated into the non-deformable support elements 31, 31a, 31b which they reinforce.

Les éléments de fixation 28a et 28b du couvre-joint 27 sont identiques aux éléments de fixation 5a et 5b du couvre-joint 2 à ceci près qu'au dessous des plaques métalliques horizontales 10 (voir en particulier les figures 10 et 11) on a placé une fourrure 40 telle que les faces supérieures des plaques métalliques horizontales 10 et des plaques métalliques horizontales 34a et 34b soient au même niveau de manière à conserver la symétrie des paires de blocs d'élastomère 9a et 9b déformables par cisaillement. Cette symétrie est la condition pour que, lorsque le joint de dilatation 3 s'ouvre ou se ferme, l'élément intermédiaire 29 n'ait pas tendance à se soulever.The fixing elements 28a and 28b of the joint cover 27 are identical to the fixing elements 5a and 5b of the joint cover 2 except that below the horizontal metal plates 10 (see in particular FIGS. 10 and 11) we have placed a fur 40 such that the upper faces of the horizontal metal plates 10 and the horizontal metal plates 34a and 34b are at the same level so as to maintain the symmetry of the pairs of elastomer blocks 9a and 9b deformable by shearing. This symmetry is the condition so that, when the expansion joint 3 opens or closes, the intermediate element 29 does not tend to lift.

Une languette 41 continue (voir figure 7) fait saillie vers l'extérieur de l'extrémité 32b de chaque couvre-joint 27. Elle relie la face inférieure de l'élément de fixation 28a à la face inférieure de l'élément de fixation 28b en suivant la forme des demi-soufflets 7b et en passant au-dessous des dents 37b. Une gorge 42 continue (voir figure 8) est ménagée à l'extrémité 32a de chaque couvre-joint 27. Elle reproduit en creux la forme de la languette 41. Lorsque les couvre-joints 27 sont en service, la languette 41 et la gorge 42 de deux couvre-joints 27 successifs s'enclenchent de manière à assurer l'étanchéité de la jonction entre lesdits couvre-joints 27 successifs.A continuous tongue 41 (see FIG. 7) projects outwards from the end 32b of each joint cover 27. It connects the lower face of the fixing element 28a to the lower face of the fixing element 28b by following the shape of the half-bellows 7b and passing below the teeth 37b. A continuous groove 42 (see FIG. 8) is provided at the end 32a of each joint cover 27. It recesses in hollow the shape of the tongue 41. When the joint covers 27 are in service, the tongue 41 and the groove 42 of two successive joint covers 27 interlock so as to seal the junction between said successive joint covers 27.

On a choisi de décrire complètement le couvre-joint 27 limité par deux plans verticaux perpendiculaires au joint 3, situés de telle sorte que le couvre-joint 27 se termine par des demi-soufflets 7a et 7b et des demi-éléments porteurs indéformables 18a, 18b, 31a et 31b. On pourrait aussi limiter chaque couvre-joint 27 par deux plans verticaux situés de telle sorte ce soit des éléments porteurs déformables 6 qui soient coupés par leur milieu.We have chosen to completely describe the joint cover 27 limited by two vertical planes perpendicular to the joint 3, situated so that the joint cover 27 ends in half-bellows 7a and 7b and non-deformable load-bearing half-elements 18a, 18b, 31a and 31b. We could also limit each joint cover 27 by two vertical planes located so that it is deformable bearing elements 6 which are cut by their middle.

On a choisi de montrer les couvre-joints 2 et 27 complètement enrobés d'élastomère ce qui assure une protection optimale des pièces métalliques contre la corrosion. Dans le cas du couvre-joint 2, chacun des éléments de fixation 5a ou 5b pourrait être constitué par une seule pièce d'un métal peu sensible à la corrosion tel qu'un alliage à base d'aluminium, les seules parties en élastomère étant alors celles qui constituent la zone déformable 4, c'est à dire les éléments porteurs déformables 6 et les soufflets 7,7a et 7b. De même, dans le cas du couvre-joint 27, les éléments de fixation 28a ou 28b ainsi que l'élément intermédiaire 29, à l'exclusion des semelles d'élastomère 38a et 38b, pourraient être constitués par des pièces d'un métal peu sensible à la corrosion, les seules parties en élastomère étant alors les semelles d'élastomère 38a et 38b, les éléments porteurs déformables 6 et les soufflets 7,7a et 7b.We chose to show joint covers 2 and 27 completely coated with elastomer, which ensures optimal protection of metal parts against corrosion. In the case of joint cover 2, each of the fastening elements 5a or 5b could consist of a single piece of a metal that is not very sensitive to corrosion, such as an aluminum-based alloy, the only elastomer parts being then those which constitute the deformable zone 4, that is to say the deformable carrying elements 6 and the bellows 7, 7a and 7b. Similarly, in the case of the joint cover 27, the fastening elements 28a or 28b as well as the intermediate element 29, with the exclusion of the elastomer soles 38a and 38b, could be constituted by parts of a metal not very sensitive to corrosion, the only elastomer parts then being the elastomer soles 38a and 38b, the deformable bearing elements 6 and the bellows 7, 7a and 7b.

Le couvre-joint 47 montré sur la figure 13 comporte une seule zone déformable 4. Il diffère du couvre-joint 2 montré sur les figures 1 à 6 par la conception des éléments de fixation 43a et 43b.The joint cover 47 shown in Figure 13 has a single deformable area 4. It differs from the joint cover 2 shown in Figures 1 to 6 by the design of the fastening elements 43a and 43b.

En effet, les logements 45 et les perçages 46 destinés à recevoir respectivement les têtes et les tiges des vis 12, ménagés dans les éléments porteurs indéformables courants 44, sont oblongs, c'est à dire qu'ils sont allongés dans la direction parallèle au joint de dilatation, ceci dans le but de rendre plus aisée une mise en place précise des couvre-joints 47,In fact, the housings 45 and the holes 46 intended to receive the heads and the rods of the screws 12 respectively, formed in the current non-deformable load-bearing elements 44, are oblong, that is to say that they are elongated in the direction parallel to the expansion joint, this in order to make easier a precise fitting of the joint covers 47,

D'autre part, dans les éléments porteurs indéformables d'extrémité 44a et 44b, sont ménagés des logements 45a et des gorges 46a de formes telles que, lorsque les couvre-joints 47 sont montés, l'ensemble constitué par deux éléments porteurs indéformables 44a et 44b accolés, appartenant à deux couvre-joints 47 voisins a même forme qu'un élément porteur indéformable courant 44, ce qui permet de mettre en place des vis 12 prenant appui sur deux couvre-joints 47 voisins.On the other hand, in the non-deformable load-bearing end elements 44a and 44b, housings 45a and grooves 46a are formed such that, when the joint covers 47 are mounted, the assembly consisting of two non-deformable support elements 44a and 44b joined together, belonging to two neighboring joint covers 47 has the same shape as a current non-deformable support element 44, which makes it possible to install screws 12 bearing on two neighboring joint covers 47.

Bien entendu, l'invention n'est pas limitée aux exemples de réalisation que l'on vient de décrire et on peut apporter à ceux-ci de nombreuses modifications sans sortir du cadre de l'invention défini par les revendications annexées.Of course, the invention is not limited to the exemplary embodiments which have just been described and numerous modifications can be made to them without departing from the scope of the invention defined by the appended claims.

Claims (11)

1. Device for the interconnection of two roadway parts (1a, 1b) separated by an expansion joint (3) consisting of a plurality of joint strips (2, 27, 47) arranged end to end and in which each joint strip (2, 27, 47) comprises at least one deformable zone (4, 4a, 4b) extending parallel to the joint (3), between two fastening elements (5a and 5b, 28a and 28b, 43a and 43b) connected to the two roadways parts (1a, 1b) respectively, characterized in that this deformable zone (4, 4a, 4b) consists of alternating carrying elements (6) and bellows (7), which are deformable in all horizontal directions, the length of the bellows, measured in the direction perpendicular to the joint (3), being less than that on either side of each bellows (7), of the deformable carrying elements, and in that, on either side of each bellows (7), two undeformable carrying elements (18, 18a, 18b, 31, 31a, 31b, 44, 44a, 44b) are situated, these undeformable carrying elements extending in a direction transverse to the joint (3) in the space between two deformable carrying elements (6), each of the deformable carrying elements (6) having a horizontal metal plate (8) situated in the upper part of the joint strip (2, 27, 47) and carried by two elastomer blocks (9a, 9b) which are deformable by horizontal shearing and arranged symmetrically relative to a vertical plane parallel to the joint (3), each of the bellows (6) consisting of an elastomeric, continuous, relatively thin and non-plane wall.
2. Connection device according to Claim 1, characterized in that the deformable zone, (4, 4a, 4b), consisting of alternating deformable carrying elements (6) and bellows (7) is limited horizontally by two recesses (50a, 51a; 50b, 51b; 50c, 51c; 50d, 51d) with a crenellated shape.
3. Connection device according to either of Claims 1 and 2, characterized in that each of the fastening elements (5a, 5b, 28a, 28b, 43a, 43b) has, in its lower part, a substantially plane metal plate (10) on which the undeformable carrying elements (18, 18a, 18b, 31, 31a, 31b, 44, 44a, 44b) bear, as well as the elastomer blocks (9a, 9b) which are deformable by horizontal shearing and are situated above it, which metal plate is traversed by the screws (12) for making the fastening blocks (5a, 5b, 28a, 28b, 43a 43b) integral with the corresponding part of the roadway (1a 1b), the said screws (12) preferably being situated perpendicular to undeformable carrying elements (18, 31, 44, 44a, 44b).
4. Connection device according to Claim 3, characterized in that each of the fastening elements (5a, 5b, 28a, 28b, 43a, 43b) has, above the lower plane metal plate (10) incorporated into these elements, metal reinforcements (20) on which the screws (12) for making the fastening blocks (5a, 5b, 28a, 28b, 43a, 43b) integral with the corresponding part of the roadway (1a, 1b) bear.
5. Connection device according to one of Claims 1 to 4, characterized in that each of the joint strip (2, 47) has a single deformable zone (4) situated substantially at right angles to the expansion joint (3).
6. Connection device according to one of Claims 1 to 4, characterized in that each of the joint strip (27) has two deformable zones (4a, 4b) situated on either side of the expansion joint (3) and between which an intermediate element (29) is situated, spanning the expansion joint (3) and which bears on either side of the latter, and in that the plane upper face (30) of the said intermediate element (29) is extended, on either side of the joint, by undeformable carrying elements (31, 31a, 31b).
7. Connection device according to Claim 6, characterized in that the intermediate element (29) has, on either side of it, in its lower part, two plane metal plates (34a, 34b) on which the elastomer blocks (9a, 9b), deformable by horizontal shearing and situated above them, bear, as well as undeformable carrying elements (31, 31a, 31b).
8. Connection device according to Claim 7, characterized in that the intermediate element (29) is reinforced by metal bars (36) which bear against the lower metal plates (34a, 34b) and which support a metal plate (35) situated close to the upper face of the said intermediate element (29).
9. Connection device according to either of Claims 7 and 8, characterized in that the intermediate element (29) has, at its ends situated above the expansion joint (3), teeth (33a, 33b) arranged such that the teeth (33a, 33b) belonging to two successive joint strips (27) interlock.
10. Connection device according to one of Claims 1 to 9, characterized in that each joint strip (2, 27, 47) has, at one of its ends, (26b, 32b) which is situated above the expansion joint (3), a continuous tongue (24, 41) ranging from the bearing surface of one of the fastening elements (5a, 28a, 43a) to the bearing surface of the other fastening element (5b, 28b, 43b) and, at the opposite end (26b, 32b), a groove (25, 42) with the same shape, the groove (25, 42) and the tongue (24, 41) belonging to two neighbouring joint strips (2, 27, 47), respectively, interlocking in order to ensure the continuity of the tightness of the device.
11. Connection device according to one of Claims 1 to 10, characterized in that each bellows (7) is symmetrical relative to a vertical plane and has, on each side of this vertical plane of symmetry and moving closer to the said plane, a rising wall (13a, 13b) joined to a descending wall (15a, 15b) whose width decreases close to the adjacent deformable carrying elements (6).
EP89911253A 1988-09-30 1989-09-27 Device for connecting two road section separated by an expansion joint Expired - Lifetime EP0394401B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8812818A FR2637299B1 (en) 1988-09-30 1988-09-30 DEVICE FOR CONNECTING BETWEEN TWO PARTS OF PAVEMENT SEPARATED BY AN EXPANSION JOINT
FR8812818 1988-09-30

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EP0394401A1 EP0394401A1 (en) 1990-10-31
EP0394401B1 true EP0394401B1 (en) 1992-07-22

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EP89911253A Expired - Lifetime EP0394401B1 (en) 1988-09-30 1989-09-27 Device for connecting two road section separated by an expansion joint

Country Status (5)

Country Link
US (1) US5028168A (en)
EP (1) EP0394401B1 (en)
JP (1) JPH0759803B2 (en)
FR (1) FR2637299B1 (en)
WO (1) WO1990003469A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100283364B1 (en) * 1998-05-09 2001-03-02 황해웅 Expansion joint
CA2767184C (en) * 2009-07-15 2014-09-23 Construction Research & Technology Gmbh Expansion joint sealing system
JP5738024B2 (en) * 2011-03-16 2015-06-17 東海旅客鉄道株式会社 Joining structure and jointing method of telescopic member in joint portion of vehicle traveling path having telescopic function
AR090164A1 (en) 2012-02-27 2014-10-22 Hengelhoef Concrete Joints Mfg Nv EXPANSION MEETING
ES2448940B1 (en) * 2012-08-17 2015-03-09 Ruiz Del Arbol Jose Ramón Vazquez Procedures for the construction and repair of concrete pavements
US8973328B2 (en) 2013-07-12 2015-03-10 Macneil Ip Llc Floor tile expansion joint
ITRM20130448A1 (en) * 2013-07-31 2015-02-01 Roberto Marnetto DEFORMABLE ELEMENT FOR EXPANSION JOINT FOR ROAD FLOOR, PARTICULARLY FOR BRIDGES AND VIADUCTS, AND EXPANSION JOINT WHICH INCLUDES THIS DEFORMABLE ELEMENT.
ITUB20154928A1 (en) * 2015-10-28 2017-04-28 Mauro Scaramuzza Improved road expansion joint
US11459746B1 (en) * 2021-02-02 2022-10-04 Schul International Co., Llc Foam-based seal for angular expansion joint segments

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228895A2 (en) * 1971-03-05 1974-12-06 Conversy Francois Cover for expansion-gap between roadway sections - has metal bars whose free downwardly projecting ends slide on rubber
US4022538A (en) * 1972-06-20 1977-05-10 Watson-Bowman Associates, Inc. Expansion joint seal
US3829229A (en) * 1973-03-16 1974-08-13 Gen Tire & Rubber Co Bendable elastomeric expansion joint
US3854159A (en) * 1973-09-24 1974-12-17 Acme Highway Prod Composite expansion joint assembly
US4030156A (en) * 1976-08-16 1977-06-21 A. J. Harris & Sons, Inc. Bridge expansion joint
US4131382A (en) * 1977-12-14 1978-12-26 Hymo Lawrence A Expansion joints
US4132491A (en) * 1978-04-27 1979-01-02 Fox Industries, Inc. Restraint assembly for bridge roadway expansion joints
US4260279A (en) * 1979-03-09 1981-04-07 The General Tire & Rubber Company End seal for expansion joint sealing assembly
JPS58213907A (en) * 1982-06-02 1983-12-13 新田ベルト株式会社 Flexible joint apparatus in road
US4833851A (en) * 1987-06-11 1989-05-30 Toshikazu Ohmatsu Expansion joints

Also Published As

Publication number Publication date
FR2637299A1 (en) 1990-04-06
WO1990003469A1 (en) 1990-04-05
FR2637299B1 (en) 1990-12-28
JPH03501989A (en) 1991-05-09
EP0394401A1 (en) 1990-10-31
JPH0759803B2 (en) 1995-06-28
US5028168A (en) 1991-07-02

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