EP0385871B1 - Road joints - Google Patents
Road joints Download PDFInfo
- Publication number
- EP0385871B1 EP0385871B1 EP90400576A EP90400576A EP0385871B1 EP 0385871 B1 EP0385871 B1 EP 0385871B1 EP 90400576 A EP90400576 A EP 90400576A EP 90400576 A EP90400576 A EP 90400576A EP 0385871 B1 EP0385871 B1 EP 0385871B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- horizontal
- road
- joint
- flexible strip
- faces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000000806 elastomer Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 208000031968 Cadaver Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 1
- 241000545067 Venus Species 0.000 description 1
- 244000245420 ail Species 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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 invention relates to pavement joints, that is to say joints joining two slabs or portions of road surface likely to undergo relative displacements, said joints being each arranged so as to close off the slot which extends between the end sections facing two such slabs, in order to ensure the continuity of the bearing in line with said slot, each consisting of two rigid frames connected together by a flexible strip of elastomeric or similar material adhered to them, these two frames resting respectively on two shouldered benches hollowed out in the two slabs on either side of the slot.
- the width of the slot is relatively large, namely on average of the order of 50 to 500 mm, and can vary widely.
- the flexible strip is constituted by an elastomer body having in cross section the shape of an inverted V or U with thick wings and armed by a rigid plate embedded in this body and covering the slot and where on the other hand each frame ends on the side of the slot by a horizontal lower heel on which rests the corresponding wing of the elastomer body.
- the level of said central zone of the joint must not exceed by more than 2 mm the average level of the upper faces of the two slabs 5 so that the rapid rolling of a vehicle over the joint does not translate by unpleasant shaking of said vehicle.
- the invention aims to remedy this drawback.
- the pavement joints according to the invention are characterized in that the underside of the rigid plate enclosing their flexible strip is concave and delimited laterally by two planes slightly inclined on the horizontal and in that the heels of their reinforcements have upper surfaces parallel to these planes.
- each heel 3 can gradually increase until its end edge, disposed in the vicinity of the slot 6.
- the two sides 7 are preferably joined together by a flat central portion 9 with parallel faces horizontal which extends over a width substantially equal to half the total width of the plate 1 formed by these panels and by this central portion.
- the common angle of inclination to the horizontal of the panels 7 and 8 of the faces is between 5 and 10 °, being preferably about 8 °.
- the elastomer body constituting the flexible strip 2 is composed of two identical prismatic rolls having in cross section the general shape of a parallelogram: the free faces of these rolls, that is to say those which are not adhered to the sides 7 or faces 8, are inclined to the horizontal angle of between 30 and 75 °.
- Each of the panels 7 above is preferably thinner than the central portion 9 which it extends, which makes it possible to increase the vertical thickness of each loaf 2 without reducing the mechanical resistance of the joint, since the latter is called to work mainly in its central portion.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Description
L'invention est relative aux joints de chaussée, c'est-à-dire aux joints raccordant deux dalles ou portions de revêtement routier susceptibles de subir des déplacements relatifs, lesdits joints étant agencés chacun de façon a obturer supérieurement la fente qui s'étend entre les tranches terminales en regard de deux telles dalles, en vue d'assurer la continuité du roulement au droit de ladite fente, étant constitués chacun par deux armatures rigides raccordées entre elles par une bande flexible en matériau élastomère ou analogue adhérée sur elles, ces deux armatures reposant respectivement sur deux banquettes épaulées évidées dans les deux dalles de part et d'autre de la fente.The invention relates to pavement joints, that is to say joints joining two slabs or portions of road surface likely to undergo relative displacements, said joints being each arranged so as to close off the slot which extends between the end sections facing two such slabs, in order to ensure the continuity of the bearing in line with said slot, each consisting of two rigid frames connected together by a flexible strip of elastomeric or similar material adhered to them, these two frames resting respectively on two shouldered benches hollowed out in the two slabs on either side of the slot.
Elle concerne plus particulièrement le cas où la largeur de la fente est relativement importante, savoir en moyenne de l'ordre de 50 à 500 mm, et peut varier fortement.It relates more particularly to the case where the width of the slot is relatively large, namely on average of the order of 50 to 500 mm, and can vary widely.
Elle concerne plus particulièrement encore le cas où d'une part la bande flexible est constituée par un corps en élastomère présentant en section droite la forme d'un V ou U renversé a ailes épaisses et armé par une plaque rigide noyée dans ce corps et coiffant la fente et où d'autre part chaque armature se termine du côté de la fente par un talon inférieur horizontal sur lequel repose l'aile correspondante du corps en élastomère.It also relates more particularly to the case where on the one hand the flexible strip is constituted by an elastomer body having in cross section the shape of an inverted V or U with thick wings and armed by a rigid plate embedded in this body and covering the slot and where on the other hand each frame ends on the side of the slot by a horizontal lower heel on which rests the corresponding wing of the elastomer body.
Dans les modes de réalisation connus des joints ci-dessus voir p.ex. FR-A-2 327 364 correspondant au préambule de la revendication 1 et, tels que celui schématisé en coupe transversale sur la figure 1 du dessin ci-annexé, la plaque 1 qui arme la bande flexible 2 est plate et horizontale et il en est de même des talons 3 des armatures 4.In the known embodiments of the above seals see for example FR-A-2 327 364 corresponding to the preamble of claim 1 and, such as that shown diagrammatically in cross section in FIG. 1 of the attached drawing, the plate 1 which arms the
Dans ce cas, les rapprochements mutuels des armatures 4 symbolisés par les flèches F et dus aux dilatations des dalles 5 sur lesquelles ces armatures reposent, rapprochements tendant a fermer la fente 6 séparant lesdites dalles, se traduisent par des élévations de la plaque 1 selon la flèche X et inversement.In this case, the mutual approximations of the armatures 4 symbolized by the arrows F and due to the expansions of the
Ces débattements verticaux de la zone médiane du joint ne sont tolérables que si leur amplitude est faible.These vertical deflections of the central region of the joint are tolerable only if their amplitude is small.
Dans la pratique, on considère que le niveau de ladite zone médiane du joint ne doit pas dépasser de plus de 2 mm le niveau moyen des faces supérieures des deux dalles 5 pour que le roulement rapide d'un véhicule sur le joint ne se traduise pas par des secousses désagréables dudit véhicule.In practice, it is considered that the level of said central zone of the joint must not exceed by more than 2 mm the average level of the upper faces of the two
Or, dans la pratique, lorsqu il fait très chaud et que la largeur de la fente 6 est minime, il arrive que la dénivelée considérée atteigne, ou même dépasse, 5mm.However, in practice, when it is very hot and the width of the
L'invention a pour but de remédier à cet inconvénient.The invention aims to remedy this drawback.
A cet effet, les joints de chaussée selon l'invention sont caractérisés en ce que la face inférieure de la plaque rigide armant leur bande flexible est concave et délimitée latéralement par deux plans légèrement inclinés sur l'horizontale et en ce que les talons de leurs armatures présentent des surfaces supérieures parallèles à ces plans.To this end, the pavement joints according to the invention are characterized in that the underside of the rigid plate enclosing their flexible strip is concave and delimited laterally by two planes slightly inclined on the horizontal and in that the heels of their reinforcements have upper surfaces parallel to these planes.
Dans des modes de réalisation préférés, on a recours en outre à l'une et/ou à l'autre des dispositions suivantes :
- l'angle d'inclinaison de chaque plan incliné sur l'horizontale est compris entre 5 et 10°, étant de préférence de l'ordre de 8° ;
- la plaque rigide comprend une portion centrale plate horizontale et est raccordée à deux pans latéraux inclinés ;
- dans un joint selon l'alinéa précédent, les deux pans latéraux sont plus minces que la portion centrale ;
- la plaque est recouverte par un revêtement en élastomère légèrement bombé ;
- pour l'état libre du joint, les faces latérales de chaque aile du corps en élastomère constituant la bande flexible sont inclinées sur l'horizontale d'angles compris entre 30 et 75°.
- the angle of inclination of each plane inclined to the horizontal is between 5 and 10 °, preferably being of the order of 8 °;
- the rigid plate comprises a horizontal flat central portion and is connected to two inclined side panels;
- in a joint according to the preceding paragraph, the two lateral sides are thinner than the central portion;
- the plate is covered by a slightly domed elastomer coating;
- for the free state of the joint, the lateral faces of each wing of the elastomer body constituting the flexible strip are inclined on the horizontal with angles of between 30 and 75 °.
Dans ce qui suit, l'on va décrire un mode de réalisation préféré de l'invention en se référant au dessin annexé d'une manière bien entendu non limitative.In what follows, a preferred embodiment of the invention will be described with reference to the accompanying drawing, of course, in a non-limiting manner.
Comme exposé précédemment,
- la Figure 1 montre, selon une coupe transversale schématique, un joint de chaussée connu.
- La Figure 2 montre, en coupe transversale verticale, un joint de chaussée établi selon l'invention.
- La Figure 3 est un schéma explicatif.
- Figure 1 shows, in a schematic cross section, a known road joint.
- Figure 2 shows, in vertical cross section, a pavement joint established according to the invention.
- Figure 3 is an explanatory diagram.
On retrouve dans le joint de chaussée montré sur la figure 2 les éléments 1 à 4 et 6 ci-dessus mentionnés à propos de la figure 1 ainsi que les flèches F symbolisant le raprochement mutuel des deux armatures 4.We find in the pavement joint shown in FIG. 2 the elements 1 to 4 and 6 above mentioned in connection with FIG. 1 as well as the arrows F symbolizing the mutual approximation of the two reinforcements 4.
Ce joint diffère essentiellement du précédent par les deux points suivants :
- la plaque 1 qui arme la bande flexible 2 et est noyée dans cette bande comprend ici deux pans latéraux 7 qui sont légèrement inclinés sur l'horizontale de façon à former une sorte de toit ;
- les faces supérieures 8 des
talons 3 des armatures 4 sur lesquelles sont adhérées les bases des deux ailes de la bande sont relevées vers lafente 6 de façon à être sensiblement parallèles aux faces en regard des pans 7.
- the plate 1 which arms the
flexible strip 2 and is embedded in this strip here comprises two side panels 7 which are slightly inclined on the horizontal so as to form a kind of roof; - the
upper faces 8 of theheels 3 of the frames 4 on which the bases of the two wings of the strip are adhered are raised towards theslot 6 so as to be substantially parallel to the opposite faces of the panels 7.
Pour parvenir à ce dernier résultat, l'épaisseur de chaque talon 3 peut croître progressivement jusqu'à sa tranche terminale, disposée au voisinage de la fente 6.To achieve this last result, the thickness of each
Les deux pans 7 sont de préférence réunis entre eux par une portion centrale plate 9 à faces parallèles horizontales qui s'étend sur une largeur sensiblement égale à la moitié de la largeur totale de la plaque 1 formée par ces pans et par cette portion centrale.The two sides 7 are preferably joined together by a flat
L'angle commun a d'inclinaison sur l'horizontale des pans 7 et des faces 8 est compris entre 5 et 10°, étant de préférence de l'ordre de 8°.The common angle of inclination to the horizontal of the
Le corps en élastomère constituant la bande flexible 2 est composé de deux pains prismatiques identiques présentant en section transversale la forme générale d'un parallèlogramme : les faces libres de ces pains, c'est-a-dire celles qui ne sont pas adhérées sur les pans 7 ou les faces 8, sont inclinées sur l'horizontale d'angle compris entre 30 et 75°.The elastomer body constituting the
Chacun des pans 7 ci-dessus est de préférence plus mince que la portion centrale 9 qu'il prolonge, ce qui permet d'augmenter l'épaisseur verticale de chaque pain 2 sans réduire la résistance mécanique du joint, vu que ce dernier est appelé à travailler essentiellement dans sa portion centrale.Each of the panels 7 above is preferably thinner than the
On voit sur la figue 2 :
- des
plots 10 venus de moulage avec la plaque 1 et faisant saillie sur les faces supérieures des pans 7, plots permettant de centrer ladite plaque dans son moule lors de la fabrication du joint par moulage du corps en élastomère, lequel enrobe totalement ladite plaque, - et deux parois verticales 11 qui prolongent chacune vers le haut l'extrémité d'un
talon 3, la plus éloignée de lafente 6 de façon à constituer avec ce talon une armature 4.
-
studs 10 coming from molding with the plate 1 and projecting from the upper faces of the sides 7, studs making it possible to center said plate in its mold during the manufacture of the seal by molding the elastomer body, which completely coats said plate, - and two vertical walls 11 which each extend upwards the end of a
heel 3, the most distant from theslot 6 so as to constitute with this heel an armature 4.
L'expérience montre qu avec un joint du genre décrit ci-dessus, les débattements verticaux, de la portion centrale, correspondant aux déformations horizontales maximum du joint, demeurent compris dans les tolérances acceptables, l'amplitude de ces débattements demeurant inférieure à 2 mm de part et d'autre d'une position moyenne.Experience shows that with a joint of the kind described above, the vertical deflections of the central portion, corresponding to the maximum horizontal deformations of the joint, remain within acceptable tolerances, the amplitude of these deflections remaining less than 2 mm. on either side of a middle position.
Une explication de ce résultat surprenant peut être tirée de l'observation du schéma de la figure 3 sur lequel on trouve un joint comprenant :
- une pièce rigide centrale 1 présentant la forme d'un toit avec deux pans inclinés 7,
- et deux armatures latérales 4 dont les
talons 3 présentent, au-dessous desdits pans 7, des faces supérieures 8 relevées vers le haut, vers le centre du joint.
- a rigid central part 1 having the shape of a roof with two inclined faces 7,
- and two lateral frames 4 whose
heels 3 have, below said sides 7,upper faces 8 raised upwards, towards the center of the joint.
Dans ce schéma, il n'y a plus de pain en élastomère 2, les pans 7 reposant sur les faces 8 de façon à pouvoir glisser le long de celles-ci.In this diagram, there is no longer any
Il est clair que, dans un tel joint, le rapprochement horizontal mutuel des armatures 4 selon les flèches F a pour effet d'abaisser la pièce centrale 1 selon la flèche Y au lieu de l'élever comme précédemment.It is clear that, in such a joint, the mutual horizontal approximation of the reinforcements 4 according to the arrows F has the effect of lowering the central part 1 according to the arrow Y instead of raising it as previously.
Cet effet, qui est dû aux inclinaisons des faces mutuellement juxtaposées, est donc l'inverse du précédent.This effect, which is due to the inclinations of the mutually juxtaposed faces, is therefore the reverse of the previous one.
On ne le retrouve pas intégralement dans le joint décrit ci-dessus, lequel comporte des pains en élastomère interposés entre les faces obliques en regard et adhérés contre celles-ci.It is not fully found in the joint described above, which comprises elastomer bars interposed between the oblique facing faces and adhered against them.
Mais en rendant obliques ces faces, on obtient une application partielle de l'effet signalé, c'est-à-dire une "compensation" se traduisant par une réduction significative des déformations verticales à combattre.But by making these faces oblique, a partial application of the signaled effect is obtained, that is to say a "compensation" resulting in a significant reduction in the vertical deformations to be combated.
En suite de quoi, et quel que soit le mode de réalisation adopté, on dispose finalement d'un joint de chaussée dont la constitution, le fonctionnement et les avantages, - notamment l'absence de déformation verticale perceptible de la zone centrale même pour les états de déformation extrêmes du joint -, résultent suffisamment de ce qui précède.Following this, and whatever the embodiment adopted, there is finally a pavement joint whose constitution, operation and advantages, - in particular the absence of perceptible vertical deformation of the central area even for states of extreme deformation of the joint -, result sufficiently from the above.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8902807 | 1989-03-03 | ||
FR8902807A FR2643923B1 (en) | 1989-03-03 | 1989-03-03 | IMPROVEMENTS ON GROUND JOINTS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0385871A1 EP0385871A1 (en) | 1990-09-05 |
EP0385871B1 true EP0385871B1 (en) | 1992-08-12 |
Family
ID=9379345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90400576A Expired - Lifetime EP0385871B1 (en) | 1989-03-03 | 1990-03-01 | Road joints |
Country Status (3)
Country | Link |
---|---|
US (1) | US5125763A (en) |
EP (1) | EP0385871B1 (en) |
FR (1) | FR2643923B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5282693A (en) * | 1991-12-16 | 1994-02-01 | Daily Jr Ralph D | Elastomeric sealing apparatus for highway joints |
AT404851B (en) * | 1992-03-09 | 1999-03-25 | Josef Fladnitzer Kunstschmiede | Sound-damping device for expansion joints on bridges |
IT1272281B (en) * | 1994-06-17 | 1997-06-16 | Autostrade Concess Const | ANHYDROUS VISCOELASTIC BUFFER JOINT. |
FR2933112B1 (en) * | 2008-06-26 | 2016-07-08 | Freyssinet | SEAL BLOCK AND ASSOCIATED METHODS. |
DE102013224460A1 (en) * | 2013-11-28 | 2015-05-28 | Maurer Söhne Engineering GmbH & Co. KG | bridging device |
ITUB20152883A1 (en) * | 2015-08-05 | 2017-02-05 | Edil Noli Srl | MODULAR PREFABRICATED JOINT, PARTICULARLY FOR INDUSTRIAL FLOORS AND METHOD FOR ITS PRODUCTION |
CN108867337B (en) * | 2018-09-10 | 2024-01-12 | 天津森聚柯密封涂层材料有限公司 | Waterproof structure of bridge joint and construction method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB923969A (en) * | 1960-03-22 | 1963-04-18 | Metalastik Ltd | Improvements in or relating to expansion joints |
CH437397A (en) * | 1964-06-30 | 1967-06-15 | Precontrainte S A | Expansion joint for civil engineering works |
US3375763A (en) * | 1965-02-15 | 1968-04-02 | Gen Tire & Rubber Co | Elastomeric expansion joint |
CH432572A (en) * | 1965-05-31 | 1967-03-31 | Mecana S A Schmerikon | Covering device for expansion joints in roadways on bridges or the like |
US3758220A (en) * | 1972-01-27 | 1973-09-11 | Gen Tire & Rubber Co | Elastomeric expansion joint |
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 |
US3862810A (en) * | 1973-10-11 | 1975-01-28 | Gen Tire & Rubber Co | Multidirectional elastomeric expansion joint |
US4131382A (en) * | 1977-12-14 | 1978-12-26 | Hymo Lawrence A | Expansion joints |
US4572702A (en) * | 1984-02-27 | 1986-02-25 | Bone John M | Expansion joint |
DE3811082C1 (en) * | 1988-03-31 | 1989-12-28 | Migua Hammerschmidt Gmbh, 5603 Wuelfrath, De |
-
1989
- 1989-03-03 FR FR8902807A patent/FR2643923B1/en not_active Expired - Lifetime
-
1990
- 1990-03-01 EP EP90400576A patent/EP0385871B1/en not_active Expired - Lifetime
- 1990-03-05 US US07/487,939 patent/US5125763A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5125763A (en) | 1992-06-30 |
FR2643923A1 (en) | 1990-09-07 |
FR2643923B1 (en) | 1991-06-21 |
EP0385871A1 (en) | 1990-09-05 |
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