EP0382681B1 - Roller cover for bridging-joints, especially for expansion joints in bridge decks - Google Patents

Roller cover for bridging-joints, especially for expansion joints in bridge decks Download PDF

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Publication number
EP0382681B1
EP0382681B1 EP90810079A EP90810079A EP0382681B1 EP 0382681 B1 EP0382681 B1 EP 0382681B1 EP 90810079 A EP90810079 A EP 90810079A EP 90810079 A EP90810079 A EP 90810079A EP 0382681 B1 EP0382681 B1 EP 0382681B1
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EP
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Prior art keywords
bridge deck
sliding
sliding plate
plate
transition member
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EP90810079A
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German (de)
French (fr)
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EP0382681A1 (en
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Robert Warthmann
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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
    • E01D19/065—Joints having sliding plates

Definitions

  • a roller shutter roadway transition for the dilatation joints of bridges is known from CH-PS 581 752. It is a steel structure. On the first part of the carriageway, the abutment, several slide blocks with cylindrical sliding surfaces are attached across the width of the carriageway. On the second part of the carriageway, the bridge, level pendulum plates are bolted together. Its free end rests on two sliding blocks with exchangeable sliding cams. The pendulum plates bridge the dilation joint. A cylindrical sliding plate is articulated at the free end of the pendulum plates. The slide plates also rest on the slide surfaces of the slide blocks by means of slide cams. A tongue plate fastened to the first lane part and also segmented in the transverse direction of the lane overlaps the sliding plates. With this construction, a fairly level transition can be achieved over the dilation joint with good alignment.
  • this transition is complex to manufacture and it takes up considerable structural height, which leads to difficulties, in particular, in relatively thin parts of the bridge which protrude transversely over the cross section of the girder.
  • a major disadvantage of this transition is the susceptibility to corrosion of the steel structure, especially with regard to the use of road salt in winter. Sealing against salt solutions is hardly possible.
  • the slide plate is made of rubber-elastic material. It has reinforcement in the longitudinal direction of the carriageway, i.e. transverse to the dilatation joint, resiliently flexible rods which are screwed to the free end of the slide plate with a guide plate and at the fastening end to a vertical steel plate arranged on the second carriageway part.
  • the slide plate lies flat on a row of steel trestles. In some variants, these steel trestles bridge the dilatation gap, are anchored on the first part of the carriageway and, with their other end, slide into a box in the second carriageway part.
  • the steel trestles end at the free end of the first part of the carriageway and have a cylindrical sliding surface starting from there.
  • These variants have only a modest carrying capacity. Due to the many exposed to corrosive salt water Steel parts, the maintenance effort is high.
  • DE-AS 1 237 159 describes a roadway transition in which the two roadway parts engage in a tongue-like manner.
  • the space between each tongue and the associated recess in the other part of the road is covered by a separate roller shutter.
  • the roller shutters consist of a series of interconnected metal strips that run transversely to the direction of the road and are guided in lateral guide rails. This construction is also complex to manufacture and maintain.
  • the present invention is based on the object of designing a roller shutter-roadway crossing in such a way that it can be produced inexpensively, is easy to maintain and is highly resilient and has improved corrosion resistance.
  • the roller shutter roadway transition according to the invention is arranged between a first roadway part and a second roadway part arranged at a varying distance therefrom. It comprises a sliding surface arranged on the first carriageway part with a cylindrical segment on which a sliding plate anchored on the second carriageway part rests, and a tongue plate anchored on the first carriageway part, which overlaps the sliding plate.
  • the sliding plate consists of reinforced, elastic material, lies flat on the sliding surface and has at its anchoring end a flat section aligned with the road surface, bridging the gap between the first and second road part, which is fastened directly to the second road part.
  • the sliding surface extends essentially continuously across the width of the road. It has a flat segment that is tangential to the cylindrical segment and runs parallel to the road surface.
  • the reinforcement of the sliding plate consists of at least one flat, flexurally rigid steel plate cast into the flat material in the flat section and a thinner, flexurally elastic sheet metal attached to it.
  • the slide plate has stepped through holes at the fastening end through which it is screwed to the second part of the roadway.
  • the longitudinal section shown in FIG. 1 is a section through the transition between an abutment 1 as the first lane part and the end of a bridge 2 as the second lane part.
  • Both roadway parts 1, 2 have a covering 3 with an aligned, flat surface 4.
  • a lowered sliding surface 5 is formed on the abutment 1 and extends across the width of the roadway.
  • the sliding surface 5 is subdivided into a convexly curved circular-cylindrical section 7, which runs out into a cavity 6, and a flat section 8, which adjoins it tangentially and runs parallel to the surface 4.
  • the section 8 is opposite the surface 4 by the thickness 9 of a sliding plate which is uniform over its surface 10 shifted down.
  • the slide plate 10 consists of reinforced rubber-elastic material, preferably of ethylene-propylene. It has a flat section 12 bridging the dilatation gap 11 between the bridge 2 and the abutment 1 and a flat section lying on the curved section 7 of the sliding surface 5 curved section 13.
  • the reinforcement comprises a flat steel sheet 14 arranged in the flat section 12 and bent at the anchoring end in an L-shaped manner, and a spring steel sheet 15 which extends over the curved section 13. At the smallest possible dilatation gap 11, the free end of the sheet 14 still lies over the flat section 8.
  • the section 12 is fastened to the bridge 2 at its fastening end facing the bridge 2 with a series of screws 18.
  • the sliding plate 10 has at the anchoring end a series of through holes 19 with counterbores 20, in which the screw head 21 is seated.
  • the bores 19 extend through the sheet metal 14.
  • the countersinks 20 are sealed watertight by rubber plugs 22.
  • the screws 18 are screwed into dowels 23 in the bridge 2 and press the underside of the sliding plate 10 against a smooth line 24 made of plastic-modified casting concrete.
  • the top of the smooth line 24 is parallel to the surface 4 and has a distance from it corresponding to the thickness 9 of the slide plate 10.
  • the material of the smooth line 24 is also particularly suitable as a material for the top layer of the abutment 1 forming the slide surface 5.
  • Below the spring steel sheet 15, a series of grooves 28 are excluded in the sliding plate 10. These extend transversely to the longitudinal direction A of the road and parallel to the axis of curvature of section 7.
  • a tongue plate 32 is fastened to the abutment 1 by further screws 33.
  • the screws 33 are in turn screwed into dowels 23.
  • the screws 33 pass through bores 34 of the tongue plate 32.
  • Its head 35 is sunk into countersinks 36, which in turn are closed by plugs 22.
  • the tongue plate 32 is preferably also made of reinforced, rubber-elastic material, in particular of ethylene propylene.
  • a tongue plate 32 made of reinforced rubber-elastic material is preferred because of the high corrosion resistance.
  • main reinforcement it then has a flat steel plate 37 which is arranged adjacent to its upper side and is bent at the anchoring end in an L-shaped manner and which is supplemented, if necessary, by a further steel plate 38.
  • the sliding plate 10 can also be reinforced by additional vulcanized steel plates 41 in the flat section 12. If only a small dilatation gap 11 has to be bridged, it extends continuously across the width of the roadway. In the case of larger dilatation gaps 11, on the other hand, it is expedient if the two road parts 1, 2 overlap in a tongue-like manner in the flat section 8, as indicated by dash-dotted lines in FIG. 1 and shown in FIG. 2.
  • the width of the overlapping tongues (60, 61) is considerably smaller than the maximum width of the dilatation gap 11. With this configuration, dilatation joints 11 of virtually any width can be bridged.
  • This tongue-shaped engagement of the two carriageway parts 1, 2 is not possible in conventional roller shutter carriageway crossings because there the dilation gap can only be bridged by the pendulum plate, which must be supported on both sides.
  • a plurality of C profiles 46 are cast in the abutment 1 and distributed transversely to the direction A of the road.
  • the center planes of these C-profiles 46 extend parallel to the longitudinal direction A of the road irrespective of whether the dilatation gap 11 extends perpendicular to the direction A or is inclined to it, which occurs in many bridges. In both cases, the center planes of the C-profiles 46 extend parallel to the direction in which the dilation takes place.
  • sliding blocks 47 are guided.
  • the curved section 13 of the sliding plate 10 is connected to these sliding blocks 47 with a screw 48 each. This effectively prevents the section 13 from being lifted off the sliding surface 5 and thus prevents it from fluttering when it is passed over.
  • the underside of the sliding plate 10 in section 13 can be coated with a sliding plastic, e.g. be coated with PTFE or polyamide.
  • the roadway crossing described is extremely corrosion-resistant because, apart from the concrete, only elastomer materials are exposed to the weather and the corrosive salt solutions. If necessary, the very simply structured cavity 6 can be flushed by high pressure flushing, for example through a side inlet opening 55. The drainage and rinsing water can be drained off in a central drain 56. In contrast to conventional roller shutters, the roadway crossing according to the invention causes little noise when it is passed over. It can also be arranged obliquely to the longitudinal direction of the road without any significant additional effort, which is very expensive in the case of conventional roller shutters.
  • the slide plate 10 according to the invention can extend in one piece continuously over the width of the roadway. This makes sealing easy.
  • the roadway crossing according to the invention requires a low overall height so that it can also be used on slim bridges without additional thickening in the area of the dilatation joint. Due to the simple construction, the roadway crossing according to the invention can be produced inexpensively. It is also particularly suitable for the renovation of existing roller shutter steel structures.
  • FIG. 4 shows a prefabricated structural unit 70 for producing a roadway crossing according to FIG. 1, the same parts being provided with the same reference numerals, so that a detailed description of these parts is unnecessary.
  • the assembly 70 consists of the sliding plate 10, the tongue plate 32 and a reinforcing frame 71, 72, which is anchored in a lost formwork 24 ', for example made of polyester concrete, and is welded to the steel dowels 23.
  • a lost formwork 24 ' for example made of polyester concrete
  • Each at least two of the screws 18, 33 are replaced by longer screws 18 ', 33', with which the two reinforcement frames 71, 72 are screwed to at least two beam-shaped supports 73.
  • the carriers 73 protrude beyond the slide plate 10 and the tongue plate 32 at their fastening ends.
  • Each at least one of the through holes 74, 75 for the screws 18 ', 33' in the supports 73 is an elongated hole, so that the spacing of the reinforcement frameworks 71, 72 from one another can be adjusted according to the width of the dilatation joint 11 at the ambient temperature prevailing at the time of installation .
  • the prepared bridge parts 1, 2 each have a cutout 76, 77.
  • the structural unit 70 in the cutouts 76, 77 are inserted, the supports 73 being supported on both sides of the covering 3.
  • the space between the cutouts 76, 77 and the formwork 24 ' is poured with concrete. After the concrete has hardened, the supports 73 are removed. Due to this training, the assembly time of the carriageway crossing is very short.

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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)
  • Pens And Brushes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

The joint-bridging arrangement has on the first roadway part (1) a sliding surface (5) having a cylindrical segment (7) and an adjoining, level segment (8) running parallel to the traffic surface (4). A sliding plate (10) of uniform thickness and consisting of rubber- elastic material lies flat on said sliding surface. The sliding plate (10) is screwed on the second roadway part (2) and bridges with a level section (12) a gap (11) between the first and second roadway part (1, 2). In the level section (12), the sliding plate (10) is reinforced by means of a rigid steel plate (14). In the section lying on the cylindrical segment (7), the reinforcement of the sliding plate (10) consists of a thin, resilient sheet-metal plate (15). Fastened on the first roadway part (1) is a tongue plate (32) which overlaps the sliding plate. <IMAGE>

Description

Ein Rollverschluss-Fahrbahnübergang für die Dilatationsfugen von Brücken ist aus der CH-PS 581 752 bekannt. Es handelt sich dabei um eine Stahlkonstruktion. Am ersten Fahrbahnteil, dem Widerlager, sind über die Fahrbahnbreite verteilt mehrere Gleitböcke mit zylindrischen Gleitflächen befestigt. Am zweiten Fahrbahnteil, der Brücke, sind nebeneinandergereiht ebene Pendelplatten festgeschraubt. Ihr freies Ende liegt mittels auswechselbaren Gleitnocken auf je zwei Gleitböcken auf. Die Pendelplatten überbrücken die Dilatationsfuge. Am freien Ende der Pendelplatten ist je eine zylindrische Gleitplatte angelenkt. Die Gleitplatten liegen ebenfalls mittels Gleitnocken auf den Gleitflächen der Gleitböcke auf. Eine am ersten Fahrbahnteil befestigte, ebenfalls in Querrichtung der Fahrbahn segmentierte Zungenplatte überlappt die Gleitplatten. Mit dieser Konstruktion kann bei guter Ausrichtung ein einigermassen ebener Uebergang über die Dilatationsfuge erreicht werden.A roller shutter roadway transition for the dilatation joints of bridges is known from CH-PS 581 752. It is a steel structure. On the first part of the carriageway, the abutment, several slide blocks with cylindrical sliding surfaces are attached across the width of the carriageway. On the second part of the carriageway, the bridge, level pendulum plates are bolted together. Its free end rests on two sliding blocks with exchangeable sliding cams. The pendulum plates bridge the dilation joint. A cylindrical sliding plate is articulated at the free end of the pendulum plates. The slide plates also rest on the slide surfaces of the slide blocks by means of slide cams. A tongue plate fastened to the first lane part and also segmented in the transverse direction of the lane overlaps the sliding plates. With this construction, a fairly level transition can be achieved over the dilation joint with good alignment.

Allerdings ist dieser Uebergang aufwendig in der Herstellung, und er beansprucht erhebliche Bauhöhe, was insbesondere in über den Trägerquerschnitt quer ausladenden, relativ dünnen Teilen der Brücke zu Schwierigkeiten führt. Ein wesentlicher Nachteil dieses Uebergangs ist die Korrosionsanfälligkeit der Stahlkonstruktion, insbesondere im Hinblick auf die Streusalzanwendung im Winter. Eine Abdichtung gegen Salzlösungen ist kaum möglich. Diese bekannten Uebergänge müssen daher im Abstand von etwa 8 Jahren gewartet und aufwendig repariert werden.However, this transition is complex to manufacture and it takes up considerable structural height, which leads to difficulties, in particular, in relatively thin parts of the bridge which protrude transversely over the cross section of the girder. A major disadvantage of this transition is the susceptibility to corrosion of the steel structure, especially with regard to the use of road salt in winter. Sealing against salt solutions is hardly possible. These known transitions therefore have to be serviced and repaired at intervals of about 8 years.

In der DE-OS 1 784 429 sind weitere Rollverschluss-Fahrbahnübergänge dargestellt. Bei diesen Ausführungsformen besteht die Gleitplatte aus gummielastischem Material. Sie hat als Armierung in Fahrbahnlängsrichtung, also quer zur Dilatationsfuge verlaufende, biegeelastische Stäbe, die am freien Ende der Gleitplatte mit einem Führungsblech und am Befestigungsende mit einer am zweiten Fahrbahnteil angeordneten, senkrechten Stahlplatte verschraubt sind. Die Gleitplatte liegt flächig auf einer Reihe von Stahlböcken auf. Bei einigen Varianten überbrücken diese Stahlböcke den Dilatationsspalt, sind am ersten Fahrbahnteil verankert und ragen mit ihrem anderen Ende gleitend in einen Kasten im zweiten Fahrbahnteil. Bei anderen Varianten enden die Stahlböcke am freien Ende des ersten Fahrbahnteils und haben von dort ausgehend eine zylindrische Gleitfläche. Diese Varianten haben nur eine bescheidene Tragfähigkeit. Durch die vielen dem korrosiven Salzwasser ausgesetzten Stahlteile ist der Wartungsaufwand hoch.DE-OS 1 784 429 shows further roller shutter roadway crossings. In these embodiments, the slide plate is made of rubber-elastic material. It has reinforcement in the longitudinal direction of the carriageway, i.e. transverse to the dilatation joint, resiliently flexible rods which are screwed to the free end of the slide plate with a guide plate and at the fastening end to a vertical steel plate arranged on the second carriageway part. The slide plate lies flat on a row of steel trestles. In some variants, these steel trestles bridge the dilatation gap, are anchored on the first part of the carriageway and, with their other end, slide into a box in the second carriageway part. In other variants, the steel trestles end at the free end of the first part of the carriageway and have a cylindrical sliding surface starting from there. These variants have only a modest carrying capacity. Due to the many exposed to corrosive salt water Steel parts, the maintenance effort is high.

In der DE-AS 1 237 159 ist ein Fahrbahnübergang beschrieben, bei welchem die beiden Fahrbahnteile zungenförmig ineinandergreifen. Der Zwischenraum zwischen jeder Zunge und der zugehörigen Ausnehmung im jeweils anderen Fahrbahnteil ist durch je einen separaten Rollverschluss abgedeckt. Die Rollverschlüsse bestehen aus einer Serie von quer zur Fahrbahnrichtung verlaufenden, zusammengehängten Metallleisten, die in seitlichen Führungsschienen geführt sind. Auch diese Konstruktion ist aufwendig in der Herstellung und im Unterhalt.DE-AS 1 237 159 describes a roadway transition in which the two roadway parts engage in a tongue-like manner. The space between each tongue and the associated recess in the other part of the road is covered by a separate roller shutter. The roller shutters consist of a series of interconnected metal strips that run transversely to the direction of the road and are guided in lateral guide rails. This construction is also complex to manufacture and maintain.

Aus der DE-AS 2 804 408 ist schliesslich ein Fahrbahnübergang bekannt, bei welchem die Dilatationsfuge durch eine Gummiplatte abgedeckt ist. Die Gummiplatte ist an beiden Fahrbahnteilen festgeschraubt und hat auf ihrer Ober- und Unterseite je zwei parallel zur Dilatationsfuge verlaufende Nuten. Im Plattenmaterial sind biegesteife Armierungsplatten eingegossen. Dieser Uebergang eignet sich nur zur Ueberbrückung von relativ kleinen Dilatationen und erzeugt sehr hohe Rückstellkräfte.From DE-AS 2 804 408 a roadway transition is finally known, in which the dilatation joint is covered by a rubber plate. The rubber sheet is screwed to both parts of the road and has two grooves on its top and bottom that run parallel to the dilation joint. Rigid reinforcement plates are cast into the plate material. This transition is only suitable for bridging relatively small dilations and generates very high restoring forces.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Rollverschluss-Fahrbahnübergang derart auszubilden, dass er preiswert herstellbar, einfach zu warten und hoch belastbar ist und eine verbesserte Korrosionsresistenz aufweist.The present invention is based on the object of designing a roller shutter-roadway crossing in such a way that it can be produced inexpensively, is easy to maintain and is highly resilient and has improved corrosion resistance.

Der erfindungsgemässe Rollverschluss-Fahrbahnübergang ist zwischen einem ersten Fahrbahnteil und einem in variierendem Abstand davon angeordneten zweiten Fahrbahnteil angeordnet. Er umfasst eine am ersten Fahrbahnteil angeordnete Gleitfläche mit einem zylindrischen Segment, auf welchem eine am zweiten Fahrbahnteil verankerte Gleitplatte verschiebbar aufliegt, sowie eine am ersten Fahrbahnteil verankerte Zungenplatte, welche die Gleitplatte überlappt. Die Gleitplatte besteht aus armiertem, elastischem Material, liegt flächig auf der Gleitfläche auf und hat an ihrem Verankerungsende einen mit der Fahrbahnfläche fluchtenden, den Spalt zwischen dem ersten und zweiten Fahrbahnteil überbrückenden ebenen Abschnitt, der direkt am zweiten Fahrbahnteil befestigt ist. Die Gleitfläche erstreckt sich im wesentlichen durchgehend über die Fahrbahnbreite. Sie hat ein an das zylindrische Segment tangential anschliessendes ebenes, parallel zur Fahrbahnfläche verlaufendes Segment. Die Armierung der Gleitplatte besteht aus mindestens einer im ebenen Abschnitt im Plattenmaterial eingegossenen, ebenen, biegesteifen Stahlplatte und einem daran anschliessenden, dünneren, biegeelastischen Blech. Die Gleitplatte hat am Befestigungsende abgestufte Durchgangsbohrungen, durch welche sie am zweiten Fahrbahnteil angeschraubt ist.The roller shutter roadway transition according to the invention is arranged between a first roadway part and a second roadway part arranged at a varying distance therefrom. It comprises a sliding surface arranged on the first carriageway part with a cylindrical segment on which a sliding plate anchored on the second carriageway part rests, and a tongue plate anchored on the first carriageway part, which overlaps the sliding plate. The sliding plate consists of reinforced, elastic material, lies flat on the sliding surface and has at its anchoring end a flat section aligned with the road surface, bridging the gap between the first and second road part, which is fastened directly to the second road part. The sliding surface extends essentially continuously across the width of the road. It has a flat segment that is tangential to the cylindrical segment and runs parallel to the road surface. The reinforcement of the sliding plate consists of at least one flat, flexurally rigid steel plate cast into the flat material in the flat section and a thinner, flexurally elastic sheet metal attached to it. The slide plate has stepped through holes at the fastening end through which it is screwed to the second part of the roadway.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung erläutert. Darin zeigt:

  • Fig. 1 einen Längsschnitt durch eine erste Ausführungsform,
  • Fig. 2 eine Draufsicht auf einen Teil des Uebergangs nach Fig. 1 bei entfernter Gleitplatte,
  • Fig. 3 einen Querschnitt durch den Uebergang nach Fig. 1, und
  • Fig. 4 eine vorfabrizierte Baueinheit zur Herstellung eines Uebergangs nach Fig. 1.
Exemplary embodiments of the invention are explained below with reference to the drawing. It shows:
  • 1 shows a longitudinal section through a first embodiment,
  • 2 is a plan view of part of the transition according to FIG. 1 with the slide plate removed,
  • 3 shows a cross section through the transition according to FIG. 1, and
  • 4 shows a prefabricated structural unit for producing a transition according to FIG. 1.

Der in Fig. 1 dargestellte Längsschnitt ist ein Schnitt durch den Uebergang zwischen einem Widerlager 1 als erstem Fahrbahnteil und dem Ende einer Brücke 2 als zweitem Fahrbahnteil. Beide Fahrbahnteile 1, 2 haben einen Deckbelag 3 mit fluchtender, ebener Oberfläche 4. Am Widerlager 1 ist eine quer über die Fahrbahnbreite durchgehende, abgesenkte Gleitfläche 5 angeformt. Die Gleitfläche 5 gliedert sich in einen in einen Hohlraum 6 auslaufenden konvex gewölbten kreiszylindrischen Abschnitt 7 und einen tangential daran anschliessenden, parallel zur Oberfläche 4 verlaufenden ebenen Abschnitt 8. Der Abschnitt 8 ist gegenüber der Oberfläche 4 um die über ihre Fläche gleichmässige Dicke 9 einer Gleitplatte 10 nach unten versetzt. Die Gleitplatte 10 besteht aus armiertem gummielastischem Material, vorzugsweise aus Aethylen-Propylen. Sie hat einen den Dilatationsspalt 11 zwischen Brücke 2 und Widerlager 1 überbrückenden ebenen Abschnitt 12 und einen auf dem gewölbten Abschnitt 7 der Gleitfläche 5 flächig aufliegenden gewölbten Abschnitt 13. Die Armierung umfasst ein im ebenen Abschnitt 12 angeordnetes, ebenes, am Verankerungsende L-förmig abgekröpftes Stahlblech 14, sowie ein Federstahlblech 15, welches sich über den gewölbten Abschnitt 13 erstreckt. Beim kleinstmöglichen Dilatationsspalt 11 liegt das freie Ende des Bleches 14 noch über den ebenen Abschnitt 8. Der Abschnitt 12 ist an seinem der Brücke 2 zugewandtem Befestigungsende mit einer Reihe von Schrauben 18 an der Brücke 2 befestigt. Dazu hat die Gleitplatte 10 am Verankerungsende eine Reihe von Durchgangsbohrungen 19 mit Ansenkungen 20, in welchen der Schraubenkopf 21 sitzt. Die Bohrungen 19 erstrecken sich durch das Blech 14. Die Ansenkungen 20 sind durch Gummipfropfen 22 wasserdicht verschlossen. Die Schrauben 18 sind in Dübel 23 in der Brücke 2 eingeschraubt und pressen die Unterseite der Gleitplatte 10 gegen einen Glattstrich 24 aus kunststoffmodifiziertem Vergussbeton. Die Oberseite des Glattstrichs 24 ist parallel zur Oberfläche 4 und hat von dieser einen Abstand entsprechend der Dicke 9 der Gleitplatte 10. Das Material des Glattstrichs 24 eignet sich auch besonders als Material für die die Gleitfläche 5 bildende oberste Schicht des Widerlagers 1. Unterhalb des Federstahlblechs 15 sind in der Gleitplatte 10 eine Reihe von Nuten 28 ausgenommen. Diese erstrecken sich quer zur Fahrbahnlängsrichtung A und parallel zur Krümmungsachse des Abschnitts 7.The longitudinal section shown in FIG. 1 is a section through the transition between an abutment 1 as the first lane part and the end of a bridge 2 as the second lane part. Both roadway parts 1, 2 have a covering 3 with an aligned, flat surface 4. A lowered sliding surface 5 is formed on the abutment 1 and extends across the width of the roadway. The sliding surface 5 is subdivided into a convexly curved circular-cylindrical section 7, which runs out into a cavity 6, and a flat section 8, which adjoins it tangentially and runs parallel to the surface 4. The section 8 is opposite the surface 4 by the thickness 9 of a sliding plate which is uniform over its surface 10 shifted down. The slide plate 10 consists of reinforced rubber-elastic material, preferably of ethylene-propylene. It has a flat section 12 bridging the dilatation gap 11 between the bridge 2 and the abutment 1 and a flat section lying on the curved section 7 of the sliding surface 5 curved section 13. The reinforcement comprises a flat steel sheet 14 arranged in the flat section 12 and bent at the anchoring end in an L-shaped manner, and a spring steel sheet 15 which extends over the curved section 13. At the smallest possible dilatation gap 11, the free end of the sheet 14 still lies over the flat section 8. The section 12 is fastened to the bridge 2 at its fastening end facing the bridge 2 with a series of screws 18. For this purpose, the sliding plate 10 has at the anchoring end a series of through holes 19 with counterbores 20, in which the screw head 21 is seated. The bores 19 extend through the sheet metal 14. The countersinks 20 are sealed watertight by rubber plugs 22. The screws 18 are screwed into dowels 23 in the bridge 2 and press the underside of the sliding plate 10 against a smooth line 24 made of plastic-modified casting concrete. The top of the smooth line 24 is parallel to the surface 4 and has a distance from it corresponding to the thickness 9 of the slide plate 10. The material of the smooth line 24 is also particularly suitable as a material for the top layer of the abutment 1 forming the slide surface 5. Below the spring steel sheet 15, a series of grooves 28 are excluded in the sliding plate 10. These extend transversely to the longitudinal direction A of the road and parallel to the axis of curvature of section 7.

Zur Ueberbrückung des Hohlraumes 6 ist am Widerlager 1 eine Zungenplatte 32 durch weitere Schrauben 33 befestigt. Die Schrauben 33 sind wiederum in Dübel 23 eingeschraubt. Die Schrauben 33 durchgreifen Bohrungen 34 der Zungenplatte 32. Ihr Kopf 35 ist in Ansenkungen 36 versenkt, die wiederum durch Pfropfen 22 verschlossen sind. Die Zungenplatte 32 besteht vorzugsweise ebenfalls aus armiertem, gummielastischem Material, insbesondere aus Aethylen-Propylen. Bei Sanierungen bestehender Stahlkonstruktionen kann es aber auch kostengünstiger sein, die bestehende Stahl-Zungenplatte beizubehalten und nur die Gleitfläche 5 sowie die Verankerung der Gleitplatte 10 an der Brücke 2 neu zu bauen und die erfindungsgemässe Gleitplatte 10 einzusetzen. Bei Neukonstruktionen wird wegen der hohen Korrosionsfestigkeit eine Zungenplatte 32 aus armiertem gummielastischem Material bevorzugt. Sie hat dann als Hauptarmierung eine benachbart ihrer Oberseite angeordnete, ebene, am Verankerungsende L-förmig nach unten abgekröpfte Stahlplatte 37, die allenfalls durch eine weitere Stahlplatte 38 ergänzt ist.In order to bridge the cavity 6, a tongue plate 32 is fastened to the abutment 1 by further screws 33. The screws 33 are in turn screwed into dowels 23. The screws 33 pass through bores 34 of the tongue plate 32. Its head 35 is sunk into countersinks 36, which in turn are closed by plugs 22. The tongue plate 32 is preferably also made of reinforced, rubber-elastic material, in particular of ethylene propylene. When renovating existing steel structures, however, it can also be more cost-effective to maintain the existing steel tongue plate and only to rebuild the sliding surface 5 and the anchoring of the sliding plate 10 on the bridge 2 and to use the sliding plate 10 according to the invention. In new designs, a tongue plate 32 made of reinforced rubber-elastic material is preferred because of the high corrosion resistance. As main reinforcement, it then has a flat steel plate 37 which is arranged adjacent to its upper side and is bent at the anchoring end in an L-shaped manner and which is supplemented, if necessary, by a further steel plate 38.

Auch die Gleitplatte 10 kann durch zusätzliche, einvulkanisierte Stahlplatten 41 im ebenen Abschnitt 12, verstärkt sein. Wenn nur ein kleiner Dilatationsspalt 11 zu überbrücken ist, erstreckt sich dieser durchgehend quer über die Fahrbahnbreite. Bei grösseren Dilatationsspalten 11 ist es hingegen zweckmässig, wenn sich die beiden Fahrbahnteile 1, 2 im ebenen Abschnitt 8 zungenförmig überlappen, wie dies in Fig. 1 durch strichpunktierte Linien angedeutet und in Fig. 2 dargestellt ist.The sliding plate 10 can also be reinforced by additional vulcanized steel plates 41 in the flat section 12. If only a small dilatation gap 11 has to be bridged, it extends continuously across the width of the roadway. In the case of larger dilatation gaps 11, on the other hand, it is expedient if the two road parts 1, 2 overlap in a tongue-like manner in the flat section 8, as indicated by dash-dotted lines in FIG. 1 and shown in FIG. 2.

Dabei ist die Breite der sich überlappenden Zungen (60,61) wesentlich kleiner als die maximale Breite des Dilatationsspaltes 11. Bei dieser Ausbildung können praktisch beliebig breite Dilatationsfugen 11 überbrückt werden. Dieser zungenförmige Eingriff der beiden Fahrbahnteile 1, 2 ist bei herkömmlichen Rollverschluss-Fahrbahnübergängen nicht möglich, weil dort der Dilatationsspalt nur durch die Pendelplatte überbrückt werden kann, welche beidseitig abgestützt sein muss.The width of the overlapping tongues (60, 61) is considerably smaller than the maximum width of the dilatation gap 11. With this configuration, dilatation joints 11 of virtually any width can be bridged. This tongue-shaped engagement of the two carriageway parts 1, 2 is not possible in conventional roller shutter carriageway crossings because there the dilation gap can only be bridged by the pendulum plate, which must be supported on both sides.

Um ein Flattern des Abschnittes 13 der Gleitplatte 10 auf dem Abschnitt 7 der Gleitfläche 5 mit Sicherheit zu vermeiden, sind im Widerlager 1 quer zur Fahrbahnrichtung A verteilt mehrere C-Profile 46 eingegossen. Die Mittelebenen dieser C-Profile 46 erstrecken sich parallel zur Fahrbahnlängsrichtung A unabhängig davon, ob sich der Dilatationsspalt 11 senkrecht zur Richtung A erstreckt oder dazu geneigt ist, was bei vielen Brücken vorkommt. Die Mittelebenen der C-Profile 46 erstrecken sich in beiden Fällen parallel zur Richtung, in welcher die Dilatation erfolgt. In den C-Profilen 46 sind Gleitsteine 47 verschiebbar geführt. Der gewölbte Abschnitt 13 der Gleitplatte 10 ist mit je einer Schraube 48 mit diesen Gleitsteinen 47 verbunden. Dadurch kann ein Abheben des Abschnittes 13 von der Gleitfläche 5 und damit ein Flattern beim Ueberfahren wirksam verhindert werden.In order to avoid fluttering of the section 13 of the sliding plate 10 on the section 7 of the sliding surface 5 with certainty, a plurality of C profiles 46 are cast in the abutment 1 and distributed transversely to the direction A of the road. The center planes of these C-profiles 46 extend parallel to the longitudinal direction A of the road irrespective of whether the dilatation gap 11 extends perpendicular to the direction A or is inclined to it, which occurs in many bridges. In both cases, the center planes of the C-profiles 46 extend parallel to the direction in which the dilation takes place. In the C-profiles 46 sliding blocks 47 are guided. The curved section 13 of the sliding plate 10 is connected to these sliding blocks 47 with a screw 48 each. This effectively prevents the section 13 from being lifted off the sliding surface 5 and thus prevents it from fluttering when it is passed over.

Um die Abriebfestigkeit der Gleitplatte 10 auf der Beton-Gleitfläche 5 zu verbessern, kann die Gleitplatte 10 auf ihrer Unterseite im Abschnitt 13 mit einem gleitfähigen Kunststoff, z.B. mit PTFE oder Polyamid beschichtet sein.In order to improve the abrasion resistance of the sliding plate 10 on the concrete sliding surface 5, the underside of the sliding plate 10 in section 13 can be coated with a sliding plastic, e.g. be coated with PTFE or polyamide.

Der beschriebene Fahrbahnübergang ist ausserordentlich korrosionsfest, weil ausser dem Beton nur Elastomer-Materialien der Witterung und den korrosiven Salzlösungen ausgesetzt sind. Falls erforderlich kann der sehr einfach gegliederte Hohlraum 6 durch Hochdruckspülung z.B. durch eine seitliche Eingangsöffnung 55 gespült werden. Das Drainage- und Spülwasser kann in einem zentralen Ablauf 56 abgeleitet werden. Im Gegensatz zu herkömmlichen Rollverschlüssen verursacht der erfindungsgemässe Fahrbahnübergang beim Ueberfahren wenig Lärm. Er kann auch ohne nennenswerten Mehraufwand schräg zur Fahrbahnlängsrichtung angeordnet werden, was bei herkömmlichen Rollverschlüssen sehr aufwendig ist. Die erfindungsgemässe Gleitplatte 10 kann sich einstückig durchgehend über die Fahrbahnbreite erstrecken. Dadurch ist die Abdichtung problemlos möglich. Es kann aber auch zu Wartungszwecken vorteilhaft sein, die Gleitplatte 10 in der Breite in mehrere Segmente aufzuteilen. Diese Segmente können durch formschlüssig eingreifende Dichtungsleisten gegeneinander abgedichtet sein. Ein einzelnes Segment kann dann im Bedarfsfall, z.B. nachts während einer Zeit geringer Verkehrsdichte, rasch ausgewechselt werden. Dadurch ist die Verkehrsbehinderung durch Wartung minimal. Der erfindungsgemässe Fahrbahnübergang erfordert eine geringe Bauhöhe, so dass er auch an schlanken Brücken ohne zusätzliche Verdickungen im Bereich der Dilatationsfuge angewandt werden kann. Durch die einfache Konstruktion ist der erfindungsgemässe Fahrbahnübergang preiswert herstellbar. Er eignet sich insbesondere auch zur Sanierung bestehender Rollverschluss-Stahlkonstruktionen.The roadway crossing described is extremely corrosion-resistant because, apart from the concrete, only elastomer materials are exposed to the weather and the corrosive salt solutions. If necessary, the very simply structured cavity 6 can be flushed by high pressure flushing, for example through a side inlet opening 55. The drainage and rinsing water can be drained off in a central drain 56. In contrast to conventional roller shutters, the roadway crossing according to the invention causes little noise when it is passed over. It can also be arranged obliquely to the longitudinal direction of the road without any significant additional effort, which is very expensive in the case of conventional roller shutters. The slide plate 10 according to the invention can extend in one piece continuously over the width of the roadway. This makes sealing easy. However, it can also be advantageous for maintenance purposes to divide the sliding plate 10 in width into several segments. These segments can be sealed against one another by form-fitting sealing strips. A single segment can then be replaced quickly if necessary, for example at night during a period of low traffic. As a result, traffic obstruction due to maintenance is minimal. The roadway crossing according to the invention requires a low overall height so that it can also be used on slim bridges without additional thickening in the area of the dilatation joint. Due to the simple construction, the roadway crossing according to the invention can be produced inexpensively. It is also particularly suitable for the renovation of existing roller shutter steel structures.

In Fig. 4 ist eine vorfabrizierte Baueinheit 70 zur Herstellung eines Fahrbahnüberganges nach Fig. 1 dargestellt, wobei gleiche Teile mit gleichen Bezugszeichen versehen sind, so dass sich eine detaillierte Beschreibung dieser Teile erübrigt. Die Baueinheit 70 besteht aus der Gleitplatte 10, der Zungenplatte 32 sowie aus je einem Armierungsgerippe 71, 72, das in einer verlorenen Schalung 24′ z.B. aus Polyesterbeton verankert und mit den aus Stahl bestehenden Dübeln 23 verschweisst ist. Je mindestens zwei der Schrauben 18, 33 sind ersetzt durch längere Schrauben 18′, 33′, mit welchem die beiden Armierungsgerippe 71, 72 an mindestens zwei balkenförmigen Trägern 73 festgeschraubt sind. Die Träger 73 überragen die Gleitplatte 10 und die Zungenplatte 32 an ihren Befestigungsenden. Je mindestens eines der Durchgangslöcher 74, 75 für die Schrauben 18′, 33′ in den Trägern 73 ist ein Langloch, damit der Abstand der Armierungsgerippe 71, 72 voneinander entsprechend der Breite der Dilatationsfuge 11 bei der zur Zeit des Einbaus vorherrschenden Umgebungstemperatur eingestellt werden kann. Die vorbereiteten Brückenteile 1, 2 haben je einen Ausschnitt 76, 77. Zur Herstellung des Fahrbahnüberganges wird die Baueinheit 70 in die Ausschnitte 76, 77 eingelegt, wobei sich die Träger 73 beidseitig auf dem Belag 3 abstützen. Nun wird der Zwischenraum zwischen den Ausschnitten 76, 77 und der Schalung 24′ mit Beton ausgegossen. Nach dem Aushärten des Betons werden die Träger 73 entfernt. Durch diese Ausbildung ist die Montagezeit des Fahrbahnüberganges sehr kurz.FIG. 4 shows a prefabricated structural unit 70 for producing a roadway crossing according to FIG. 1, the same parts being provided with the same reference numerals, so that a detailed description of these parts is unnecessary. The assembly 70 consists of the sliding plate 10, the tongue plate 32 and a reinforcing frame 71, 72, which is anchored in a lost formwork 24 ', for example made of polyester concrete, and is welded to the steel dowels 23. Each at least two of the screws 18, 33 are replaced by longer screws 18 ', 33', with which the two reinforcement frames 71, 72 are screwed to at least two beam-shaped supports 73. The carriers 73 protrude beyond the slide plate 10 and the tongue plate 32 at their fastening ends. Each at least one of the through holes 74, 75 for the screws 18 ', 33' in the supports 73 is an elongated hole, so that the spacing of the reinforcement frameworks 71, 72 from one another can be adjusted according to the width of the dilatation joint 11 at the ambient temperature prevailing at the time of installation . The prepared bridge parts 1, 2 each have a cutout 76, 77. To produce the roadway transition, the structural unit 70 in the cutouts 76, 77 are inserted, the supports 73 being supported on both sides of the covering 3. Now the space between the cutouts 76, 77 and the formwork 24 'is poured with concrete. After the concrete has hardened, the supports 73 are removed. Due to this training, the assembly time of the carriageway crossing is very short.

Claims (10)

  1. A bridge deck transition member between a first part (1) of a bridge deck and a second part (2) of a bridge deck disposed at a variable distance from the first part, more particularly for expansion joints of bridges, the transition member comprising a sliding surface (5) on the first part (1) and having a cylindrical segment (7) on which a sliding plate (10) anchored to the second part (2) moves and is slidable, and a tongue plate (32) anchored to the first part (1) and overlapping the sliding plate (10), the sliding plate (10) being made of reinforced resilient material and resting flat on the sliding surface (5) and, at its end for anchoring, having a flat portion (12) which is flush with the surface (4) of the bridge deck and bridges the gap (11) between the first and second part (1, 2), and is directly secured to the second part (2), characterised in that the sliding surface (5) extends substantially all the way across the bridge deck and has a flat segment (8) extending parallel to the bridge deck surface (4) and joining the cylindrical segment (7) at a tangent, the reinforcement of the sliding plate (10) comprises at least one flat rigid steel plate (14) cast in the plate material in the flat portion (12) and an adjacent thinner resiliently bending metal sheet (15), and the end of the sliding plate (10) for securing has graduated through bores (19, 20) for screwing it to the second part of the bridge deck.
  2. A bridge deck transition member according to claim 1, characterised in that the first and second part (1, 2) of the bridge deck interlock like a tongue underneath the flat portion (12).
  3. A bridge deck transition member according to claim 1 or 2, characterised in that the sliding plate (10) is made of an elastomer or natural rubber, more particularly ethylene-propylene.
  4. A bridge deck transition member according to any of claims 1 to 3, characterised in that the sliding plate (10) has a uniform thickness over its entire surface.
  5. A bridge deck transition member according to any of claims 1 to 4, characterised in that the underside of the sliding plate (10), in the portion (13) thereof resting on the sliding surface (5), is coated with plastics.
  6. A bridge deck transition member according to any of claims 1 to 5, characterised in that the sliding plate, on its underside underneath the resiliently flexible metal sheet (15), has grooves (28) extending parallel to the end for securing.
  7. A bridge deck transition member according to any of claims 1 to 6, characterised in that the tongue plate (32) is made of an elastomer or of natural rubber and its top half is reinforced by an additional steel plate (37).
  8. A bridge deck transition member according to any of claims 1 to 7, characterised in that a number of C rails (46) are incorporated in the sliding surface, sliding blocks (47) are movable along the C rails (46), and the portion (13) of the sliding plate (10) resting on the sliding surface (5) is secured to the sliding blocks (47).
  9. A bridge deck transition member according to any of claims 1 to 8, characterised in that the sliding surface (5) is made of concrete.
  10. A sliding plate for a roller closure-bridge deck transition member according to any of claims 1 to 9, the sliding plate being made of a resilient reinforced material having a uniform thickness over its entire surface, characterised in that at its end for anchoring, it has screw bores (19) and countersunk portions (20) for securing to the second part (2) of the bridge deck, and comprises a flat rigid steel reinforcing plate (14) enclosed in the material, and the portion (13) of the sliding plate remote from the end for anchoring contains a resiliently flexible spring steel sheet (15) extending parallel to its surface and enclosed in the material and, on its underside below the sheet (15), the sliding plate has grooves (28) extending parallel to the end for securing.
EP90810079A 1989-02-06 1990-02-05 Roller cover for bridging-joints, especially for expansion joints in bridge decks Expired - Lifetime EP0382681B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810079T ATE87685T1 (en) 1989-02-06 1990-02-05 ROLLER CLOSURE ROAD CROSSING, PARTICULARLY FOR DILATION JOINTS OF BRIDGES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH40289 1989-02-06
CH402/89 1989-02-06

Publications (2)

Publication Number Publication Date
EP0382681A1 EP0382681A1 (en) 1990-08-16
EP0382681B1 true EP0382681B1 (en) 1993-03-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810079A Expired - Lifetime EP0382681B1 (en) 1989-02-06 1990-02-05 Roller cover for bridging-joints, especially for expansion joints in bridge decks

Country Status (4)

Country Link
US (1) US5051024A (en)
EP (1) EP0382681B1 (en)
AT (1) ATE87685T1 (en)
DE (1) DE59001088D1 (en)

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Also Published As

Publication number Publication date
US5051024A (en) 1991-09-24
ATE87685T1 (en) 1993-04-15
EP0382681A1 (en) 1990-08-16
DE59001088D1 (en) 1993-05-06

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