Classifications

• • 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 road separated by an expansion joint, such as exists in bridges or other works of 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 in 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 joint.
• the invention aims to remedy these drawbacks by providing 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 bearing elements, and in that, on each side of each bellows, are located two non-deformable bearing elements, these non-deformable bearing 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 located 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 is constituted by an elastomer wall, continuous, relatively thin, non-planar. So a deformable zone includes an alternation of 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 load-bearing elements, the connection between a deformable zone and the elements which are adjacent to it does not have a straight groove parallel to the expansion joint.
• connection between a deformable zone, constituted by the alternation of bellows and deformable bearing elements, e each of the elements which is adjacent to it consists of 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.
• 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,
• FIG. 1 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 Figure 1
• - Figure 5 is a cross-sectional view, in the middle of a deformable carrier element, of the Figure 1 connection
• FIG. 6 is a perspective view of all the metal parts included in one of the fixing elements of the joint cover of FIG. 2,
• FIG. 7 is an overall view, in perspective and partial section, of an embodiment of the connection device according to the invention, the joint covers of which comprise two deformable zones situated on either side of a intermediate element,
• FIG. 8 is a perspective view of one of the joint covers of FIG. 7,
• FIG. 9 is a partial sectional and perspective view of the joint cover of FIG. 8
• FIG. 10 is a cross section of the anointed cover of FIG. 8 located in the middle of a bellows
• FIG 11 is a cross section of the joint cover of Figure 8 located in the middle of a deformable carrier element
• - Figure 12 is a perspective view of the metal part included in the intermediate element of the joint cover of Figure 8
• FIG. 13 is a perspective view of another embodiment of joint cover according to the invention comprising a single deformable zone.
• connection device according to the invention shown in FIG. 1 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 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 road parts la and lb 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 all the horizontal directions 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 bearing 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 shearing.
• 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, constituted 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 1 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 la or lb 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 la or lb.
• 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 (see FIG. 2 is formed at the end 26a of each joint cover 2. It connects the underside of the fastening element 5a to the underside of the fastening element 5b and follows the shape 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) admits a plate of vertical 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.
• the deformable zone 4a is horizontally limited 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 area 4b is horizontally limited on the side of the fixing member 28b by the 'crenellated groove 50b, 51b, and the side of the intermediate element 29 by the groove crenellated 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 38a and 38b which bear respectively on the parts la and lb of the roadway.
• the elastomer soles 38a and 38b transmit to parts la and lb of the roadway, the loads supported by the intermediate element 29. They are relatively thick ca they must distribute said loads even when the parts la and lb of the roadway are slightly offset vertically.
• the upper metal plate 35 (see Figure 12) has at one of its ends teeth 37a and at the other end of teeth 37b, teeth 37a and 37b are incorporated respectively in teeth 33a and 33b of the 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 of which 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 2 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 underside of the fixing element 28a to the underside of the fixing element 28b by following the shape of the half-bellows 7b and passing below the teeth 37b.
• a continuous groove 42 is formed 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 such 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 FIG. 13 has a single deformable zone 4. It differs from the joint cover 2 shown in FIGS. 1 to 6 by the design of the fixing elements 43a and 43b.
• the housings 45 and the holes 46 intended to receive respectively the heads and the rods of the screws 12, 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
• the non-deformable bearing elements of the end 44a and 44b are housed housings 45a and grooves 46a of shapes such that, when the joint covers 47 are mounted, the assembly consisting of two non-deformable load-bearing 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)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9370576

Family Applications (1)

Country Status (5)

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• 1988
  • 1988-09-30 FR FR8812818A patent/FR2637299B1/fr not_active Expired - Lifetime
• 1989
  • 1989-09-27 WO PCT/FR1989/000493 patent/WO1990003469A1/fr active IP Right Grant
  • 1989-09-27 EP EP89911253A patent/EP0394401B1/de not_active Expired - Lifetime
  • 1989-09-27 US US07/460,127 patent/US5028168A/en not_active Expired - Fee Related
  • 1989-09-27 JP JP1510498A patent/JPH0759803B2/ja not_active Expired - Lifetime

Non-Patent Citations (1)

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