EP0215980A1 - A grating bar-type bridging device for expansion joints in bridges - Google Patents

A grating bar-type bridging device for expansion joints in bridges Download PDF

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Publication number
EP0215980A1
EP0215980A1 EP85201523A EP85201523A EP0215980A1 EP 0215980 A1 EP0215980 A1 EP 0215980A1 EP 85201523 A EP85201523 A EP 85201523A EP 85201523 A EP85201523 A EP 85201523A EP 0215980 A1 EP0215980 A1 EP 0215980A1
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Prior art keywords
bearing
cross
edge
slats
lamella
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EP85201523A
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German (de)
French (fr)
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Marcel Vecchi
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Individual
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/06Arrangement, construction or bridging of expansion joints
    • E01D19/062Joints having intermediate beams

Definitions

  • the invention relates to a lamella transition for expansion joints on bridges or the like, which consists of parallel to the expansion joint, slidably supported on the joint edges and slidably supported cross members with a device for distance control, whereby at the joint edges provided with an edge lamella U -shaped bearing frame for the cross member and rectangular bearing frames are attached under the slats, the cross member comprising, in which the cross members are braced vertically against an elastomeric plain bearing.
  • lamella transition brackets are mounted on the edge rails of the expansion joint on which the elastomeric plain bearings are fastened to support the cross members.
  • the crossbeams are braced on the brackets with threaded bolts that are attached to the associated edge rail above the bracket and can be screwed downwards against the upper flange of the crossbeam.
  • support plates for slide bearings lying against the sides of the crossbeams are attached to the brackets.
  • the lamellae are supported by rectangular bearing frames attached under the lamellae, with elastomeric pot bearings provided on the bottom and the two inner sides, which are also clamped with screw elements are.
  • the arrangement of the bearing frame under the lower flange of the lamellae has the disadvantage that the lamellae are exposed to large tilting moments when exposed to the traffic loads, and this makes their distance control considerably more difficult or even impossible.
  • DE-PS 30 19 594 an embodiment is known in which the cross beams protrude through openings in the slats, so that the tilting moments are relatively low; the distance control used in this version by linking the slats with partial cross members is complex and also very susceptible to failure due to the stress on the elastomeric bearing bodies due to thrust and torsion.
  • the distance control described in DE-AS 27 46 490 provides a sliding pivot bearing of the slats on the transverse bearings arranged in alternating directions, so that the slats are moved in the manner of a scissor lattice when the joint width is changed by pivoting the transverse bearings; this version is very complicated and extremely susceptible to tipping and tilting of the slats.
  • the elastic control proposed by DE-AS 16 58 611 with the aid of elastic control springs arranged between the lamellae and inclined cross members, a different distance between the lamellae can arise as a result of braking.
  • the slats are each connected to the adjacent slats or edge slats by handlebar pairs, each handlebar pair being provided with a return spring and each handlebar rod engaging in a longitudinal slot of the adjacent slats or edge slats.
  • the traffic loads are disadvantageously transferred directly to the handlebars.
  • a trailing sheet construction in which on one side a gap bridge covering the gap and arranged on the other side is an expansion device which fills a joint formed on the connecting structure between the front end of the split bridge and the adjoining roadway.
  • the stretching device consists of wide-flange beams running along the web direction, which are arranged in a fixed position and on which slats are slidably mounted.
  • the lamellae are provided with claws which reach under the flanges of the wide-flange girders and which should result in resilient mounting.
  • the control of the slats is a scissor construction, one end of which is pivotally mounted on the connecting structure in the vicinity of the carriageway and one slat is articulated to the cross bearings.
  • This stretching device and the slats controlled by it do not allow any immediate bridging of the gap in their arrangement and storage.
  • the object of the invention is to provide a lamella transition corresponding to the generic name for expansion joints on bridges or the like with a suitable device for distance control.
  • the components associated with the lamella transition should be adapted as best as possible to the distance control.
  • the control scissors ensure simple and very wear-resistant distance control of the slats. It is acted upon by the control forces, which act directly on each slat. In contrast, the vertical traffic loads are transferred from the slats to the joint edges via the cross beams.
  • the separation of the one Devices for load transmission from the device for distance control has the advantage that both systems can be optimally designed for their function, but also easier replacement of wearing parts is possible.
  • the rectangular bearing frames assigned to the slats are expediently installed in a cutout of the slats that extends approximately below the upper profile edge. This considerably relieves the bearing on the control scissors on the slats, and the control scissors are practically not exposed to bending and shear stresses due to traffic loads.
  • a tensioning body rests elastically against the crossbeam in the bearing frame of the joint edges and the lamellas.
  • the cross member is pressed elastically downwards onto its elastomeric plain bearings, and, on the other hand, the lamellae with their elastomeric plain bearings are pressed down against the upper flange of the cross members. This not only prevents rattling noises from traffic, but also better compensates for any tilting movements of the slats and the cross members.
  • bearing journals are expediently arranged under the lamellae and edge lamellae. So that any tilting movements of the lamellae are not transmitted to the control shears, an elastic bearing ring is arranged between the bearing journal and the bearing bush of the cross bearing. This storage absorbs any vertical and horizontal force components, so that shock loads on the lamella len practically not be transferred to the control scissors.
  • the clamping bodies can consist of an elastic rubber or plastic, which can be compressed to a certain extent. These clamping bodies not only generate the preload force, but also significantly simplify the assembly of the lamella transition and the replacement of wear-bearing bearings and the clamping body itself. Thus, by simply lifting the crossbeams, the upper elastic clamping bodies are pressed into the U-shaped bearing frame and the lower elastomeric plain bearings are exposed for replacement. Once these elastomeric plain bearings have been removed, the cross members can also be placed on the bare U-shaped frame and the upper clamping bodies can be replaced. The upper elastomeric plain bearings and the lower clamping bodies can be exchanged in a corresponding manner in the rectangular bearing frame associated with the lamellae.
  • the lamella transition shown in FIG. 1 serves to bridge an expansion joint which is formed between the joint edges 1 of a bridge and connecting structure or the like.
  • An edge rail 2 is attached to each of the two joint edges 1, on which several cross members 3 bridging the expansion joint are slidably and tiltably mounted.
  • On the cross members 3 slats 4 are slidably mounted along the expansion joint.
  • On the edge rails 2, an edge plate 5 corresponding to the plates 4 is fastened.
  • the two edge rails 2 and edge lamellae 5 are connected by control shears 6, on the cross bearings 32 of which the lamellae 4 are articulated.
  • These control scissors 6, which are designed in the manner of a Nuremberg pair of scissors, are arranged between the cross members 3.
  • a sealing profile 28 is inserted, which drains rainwater laterally to the edge of the road and protects the functional parts of the slat transition from dirt.
  • openings 7 are provided in the edge rails 2, through which the ends of the cross members 3 protrude into boxes 15.
  • Fig. 5 illustrates, welded to the edge rails 2 under the edge lamella 5 U-shaped bearing frame 8 through which the cross members 3 provided on their four sides with sliding layers 17 protrude and which absorb their forces.
  • elastomeric plain bearings 9 are provided, each of which projects into a bore 11 with a pin 10.
  • elastic clamping bodies 12 are attached to the two sides and above, which are also inserted with a pin 13 into a bore 14 of the bearing frame 8.
  • This clamping body 12 consist of an elastic rubber or plastic and are compressible to the extent that when lifting the cross member by means of a crane or the like.
  • the lower elastomeric plain bearings 9 are exposed for replacement.
  • the storage of the cross member 3 in the bearing frame 8 enables a perfect expansion compensation, the cross member 3 sliding into the bearing frame 8.
  • the storage also allows tilting of the cross member 3 when the bearing frame 8 on both sides of the joint at different heights, for. B. due to different vertical dimensions of the buildings concerned.
  • Rectangular bearing frames 18, which include the cross members 3, serve to support the slats 4 on the cross members 3.
  • the bearing frame 18, as shown in FIG. 6, is installed in cutouts 21 which extend into the web 20 to just below the upper profile edge 19 which serves to accommodate the sealing profiles 28.
  • the bearing frames 18 are each provided with an upper elastomeric sliding bearing 22, which engages with a pin 23 in a bore 24, and with a lower elastic clamping body 25, the pin 26 of which lies in a bore 27.
  • the lamellae 4 are tensioned downwards by the clamping bodies 25. Due to the high and relatively wide bearing surface, the slats 4 are very stable.
  • the wearing bearing parts namely the elastomeric sliding bearings 22 and the clamping bodies 25, can easily be replaced after the lamellae 4 have been raised. Since the plain bearings 9 and 22 and the clamping bodies 12 and 25 of the bearing frames 8 and 18 are of the same design, only two components are required for exchange purposes.
  • the control shears 6 provided for distance control are shown in FIGS. 3 and 4.
  • the two ends of the control scissors 6 are articulated on the two joint edges 1 below the associated edge blades 5.
  • a bearing block 30 is provided under the edge plates 5, in which a journal 31 z. B. is fastened by means of a grub screw or the like.
  • Corresponding bearing journals 31 are fastened in bearing blocks 33 under the lower chords 29 of the slats 4, onto which the cross bearings 32 of the control scissors 6 are attached.
  • a bearing bush 36 is fastened in each of the bores 35 of the cross bearing 32, and the bearing journals 31 are tapered downward and braced in the bearing bush 36 with an elastic bearing ring 37.
  • the elastic bearing rings 37 consist of elastomers or similar materials. All cross bearings 32 and end bearings 34 have play in the vertical direction, so that vertical force components are not, but the horizontal control forces are transmitted.
  • the side bearings 38 associated with the control scissors 6 are shown in FIGS. 1 and 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The device is equipped with bars (4) which extend parallel to the expansion joint and which are supported displaceably on cross-members (3) mounted displaceably and tiltably at the joint edges (1). U-shaped bearing frames for the cross-members (3) are mounted at the joint edges, and attached in cutouts of the bars are rectangular bearing frames which surround the cross-members and which are equipped with an elastomeric plain bearing and clamping bodies bearing elastically against the cross-member. For an improved control of the spacing between the bars, the two edge bars (5) are connected by means of control scissors (6), on the cross bearings (32) of which the bars are articulated. For this, bearing journals (31) are arranged under the bars and edge bars and rest in a bearing bush (36) with an elastic bearing ring (37) interposed. <IMAGE>

Description

Die Erfindung betrifft einen Lamellenübergang für Dehnfugen an Brücken o. dgl., welche aus parallel zur Dehnfuge verlaufenden, auf an den Fugenrändern verschieb- und kippbar gelagerten Querträgern ver­schiebbar abgestützten Lamellen mit einer Einrich­tung zur Abstandssteuerung besteht, wobei an den mit einer Randlamelle versehenen Fugenrändern U-förmige Lagerrahmen für die Querträger und unter den Lamellen rechteckige, die Querträger umfassende Lagerrahmen angebracht sind, in denen die Querträger vertikal ge­gen ein elastomeres Gleitlager verspannt sind.The invention relates to a lamella transition for expansion joints on bridges or the like, which consists of parallel to the expansion joint, slidably supported on the joint edges and slidably supported cross members with a device for distance control, whereby at the joint edges provided with an edge lamella U -shaped bearing frame for the cross member and rectangular bearing frames are attached under the slats, the cross member comprising, in which the cross members are braced vertically against an elastomeric plain bearing.

Bei einem solchen, in der DE-AS 23 16 407 beschriebe­nen Lamellenübergang sind zur Lagerung der Querträger an den Randschienen der Dehnfuge Konsolen angebracht, auf denen die elastomeren Gleitlager befestigt sind. Die Verspannung der Querträger an den Konsolen ge­schieht mit Gewindebolzen, die über der Konsole an der zugehörigen Randschiene befestigt sind und nach unten gegen den Obergurt der Querträger verschraubbar sind. Zur seitlichen Verspannung der Querträger sind an den Konsolen Stützplatten für gegen die Seiten der Querträger anliegende Gleitlager angebracht. Die Lage­rung der Lamellen geschieht durch unter den Lamellen befestigte rechteckförmige Lagerrahmen, wobei am Boden und den beiden Innenseiten elastomere Topflager vorge­sehen sind, die ebenfalls mit Schrauborganen verspannt sind. Die Anordnung der Lagerrahmen unter dem Unter­gurt der Lamellen hat den Nachteil, daß die Lamellen bei Einwirkung der Verkehrslasten großen Kippmomenten ausgesetzt sind und hierdurch deren Abstandssteuerung erheblich erschwert oder gar versitelt wird. Aus der DE-PS 30 19 594 ist zwar eine Ausführung bekannt, bei der die Querträger durch Öffnungen in den Lamellen ragen, so daß die Kippmomente relativ niedrig sind; die bei dieser Ausführung verwendete Abstandssteuerung durch Verkettung der Lamellen mit Teiltraversen ist jedoch aufwendig und wegen der Beanspruchung der elasto­meren Lagerkörper auf Schub und Torsion auch sehr stör­anfällig. Die in der DE-AS 27 46 490 beschriebene Ab­standssteuerung sieht eine Gleitschwenklagerung der Lamellen an den in wechselnden Richtungen angeordne­ten Querlagern vor, so daß die Lamellen bei einer Änderung der Fugenbreite durch Verschwenken der Quer­lager in der Art eines Scherengitters bewegt werden; diese Ausführung ist sehr kompliziert und gegen ein Verkippen und Verkanten der Lamellen äußerst störan­fällig. Bei der mit der DE-AS 16 58 611 vorgeschlagenen elastischen Steuerung mit Hilfe zwischen den Lamellen und schräggestellten Querträgern angeordneter elasti­scher Steuerfedern kann durch Bremseinwirkung ein unter­schiedlicher Abstand zwischen den Lamellen entstehen. Nach der DE-PS 27 50 333 sind die Lamellen jeweils durch Lenkerpaare mit den benachbarten Lamellen bzw. Randlamellen verbunden, wobei jedes Lenkerpaar mit einer Rückstellfeder versehen ist und jede Lenker­stange in einen Längsschlitz der benachbarten Lamel­len bzw. Randlamellen eingreift. Bei dieser Ausführung werden die Verkehrslasten in nachteiliger Weise unmit­telbar auf die Lenkerorgane übertragen. Schließlich ist in dem Buch "Fahrbahnübergänge in Brücken und Beton­bahnen" von W. Köster, Bauverlag Wiesbaden, 1965, Sei­ten 146 bis 147 eine Schleppblechkonstruktion erläutert, bei der auf der einen Seite eine den Spalt abdeckende Spaltbrücke und auf der anderen Seite eine Dehnvorrichtung angedordnet ist, welche eine auf dem Anschlußbauwerk zwischen dem Stirnende der Spaltbrücke und der anschließenden Fahr­bahn gebildete Fuge füllt. Die Dehnvorrichtung besteht aus längs der Bahnrichtung verlaufenden Breitflansch­trägern, die ortsfest angeordnet und auf denen Lamel­len gleitbar gelagert sind. Hierfür sind die Lamellen mit unter die Flansche der Breitflanschträger greifen­den Krallen versehen, die eine federnde Lagerung er­geben sollen. Der Steuerung der Lamellen dient eine Scherenkonstruktion, deren eines Ende am Anschlußbau­werk in der Nähe der Fahrbahn schwenkbar gelagert ist und an deren Kreuzlagern jeweils eine Lamelle an­gelenkt ist. Diese Dehnvorrichtung und die von ihr ge­steuerten Lamellen lassen in ihrer Anordnung und Lage­rung keine unmittelbare Überbrückung des Spaltes zu.In such a, described in DE-AS 23 16 407 lamella transition brackets are mounted on the edge rails of the expansion joint on which the elastomeric plain bearings are fastened to support the cross members. The crossbeams are braced on the brackets with threaded bolts that are attached to the associated edge rail above the bracket and can be screwed downwards against the upper flange of the crossbeam. For lateral bracing of the crossbeams, support plates for slide bearings lying against the sides of the crossbeams are attached to the brackets. The lamellae are supported by rectangular bearing frames attached under the lamellae, with elastomeric pot bearings provided on the bottom and the two inner sides, which are also clamped with screw elements are. The arrangement of the bearing frame under the lower flange of the lamellae has the disadvantage that the lamellae are exposed to large tilting moments when exposed to the traffic loads, and this makes their distance control considerably more difficult or even impossible. From DE-PS 30 19 594 an embodiment is known in which the cross beams protrude through openings in the slats, so that the tilting moments are relatively low; the distance control used in this version by linking the slats with partial cross members is complex and also very susceptible to failure due to the stress on the elastomeric bearing bodies due to thrust and torsion. The distance control described in DE-AS 27 46 490 provides a sliding pivot bearing of the slats on the transverse bearings arranged in alternating directions, so that the slats are moved in the manner of a scissor lattice when the joint width is changed by pivoting the transverse bearings; this version is very complicated and extremely susceptible to tipping and tilting of the slats. In the case of the elastic control proposed by DE-AS 16 58 611 with the aid of elastic control springs arranged between the lamellae and inclined cross members, a different distance between the lamellae can arise as a result of braking. According to DE-PS 27 50 333, the slats are each connected to the adjacent slats or edge slats by handlebar pairs, each handlebar pair being provided with a return spring and each handlebar rod engaging in a longitudinal slot of the adjacent slats or edge slats. In this embodiment, the traffic loads are disadvantageously transferred directly to the handlebars. Finally, in the book "Roadway Crossings in Bridges and Concrete Railways" by W. Köster, Bauverlag Wiesbaden, 1965, pages 146 to 147, a trailing sheet construction is explained in which on one side a gap bridge covering the gap and arranged on the other side is an expansion device which fills a joint formed on the connecting structure between the front end of the split bridge and the adjoining roadway. The stretching device consists of wide-flange beams running along the web direction, which are arranged in a fixed position and on which slats are slidably mounted. For this purpose, the lamellae are provided with claws which reach under the flanges of the wide-flange girders and which should result in resilient mounting. The control of the slats is a scissor construction, one end of which is pivotally mounted on the connecting structure in the vicinity of the carriageway and one slat is articulated to the cross bearings. This stretching device and the slats controlled by it do not allow any immediate bridging of the gap in their arrangement and storage.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, einen der Gattungsbezeichnung entsprechenden Lamellen­übergang für Dehnfugen an Brücken o. dgl. mit einer geeigneten Einrichtung zur Abstandssteuerung zu verse­hen. Ergänzend sollen die dem Lamellenübergang zuge­hörigen Bauteile bestmöglich an die Abstandssteuerung angepaßt werden.In contrast, the object of the invention is to provide a lamella transition corresponding to the generic name for expansion joints on bridges or the like with a suitable device for distance control. In addition, the components associated with the lamella transition should be adapted as best as possible to the distance control.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die beiden Randlamellen durch wenigstens eine Steuer­schere verbunden sind, an deren Kreuzlagern die Lamel­len angelenkt sind.This object is achieved in that the two edge plates are connected by at least one control shear, at the cross bearings of the plates are articulated.

Die Steuerschere sichert eine einfache und sehr ver­schleißfeste Abstandssteuerung der Lamellen. Sie wird von den Steuerkräften beaufschlagt, die unmittelbar an jeder Lamelle angreifen. Hingegen werden die vertikalen Verkehrslasten von den Lamellen über die Querträger auf die Fugenränder übertragen. Die Trennung der Ein­ richtungen zur Lastübertragung von der Einrichtung zur Abstandssteuerung hat den Vorteil, daß beide Systeme für ihre Funktion optimal ausgebildet werden können, aber auch ein einfacheres Austauschen von Verschleißteilen möglich ist.The control scissors ensure simple and very wear-resistant distance control of the slats. It is acted upon by the control forces, which act directly on each slat. In contrast, the vertical traffic loads are transferred from the slats to the joint edges via the cross beams. The separation of the one Devices for load transmission from the device for distance control has the advantage that both systems can be optimally designed for their function, but also easier replacement of wearing parts is possible.

Um die Kippmomente an den Lamellen auf ein Mindestmaß zu reduzieren, sind die den Lamellen zugeordneten rechteckigen Lagerrahmen zweckmäßig in je einen bis etwa unter den oberen Profilrand reichenden Ausschnitt der Lamellen eingebaut. Die Lagerung der Steuerschere an den Lamellen wird hierdurch ganz erheblich ent­lastet, und die Steuerschere ist praktisch keinen Biege- und Scherbeanspruchungen durch Verkehrslasten ausgesetzt.In order to reduce the tilting moments on the slats to a minimum, the rectangular bearing frames assigned to the slats are expediently installed in a cutout of the slats that extends approximately below the upper profile edge. This considerably relieves the bearing on the control scissors on the slats, and the control scissors are practically not exposed to bending and shear stresses due to traffic loads.

Für eine stoßfreie Übertragung der Verkehrslasten auf die Querträger ist in den Lagerrahmen der Fugenränder und der Lamellen jeweils ein elastisch gegen den Quer­träger anliegender Spannkörper angeordnet. Hierdurch wird einerseits der Querträger elastisch nach unten auf seine elastomeren Gleitlager gedrückt, und ander­seits werden die Lamellen mit ihren elastomeren Gleit­lagern nach unten gegen den Obergurt der Querträger gepreßt. Das verhindert nicht nur Klappergeräusche durch den Verkehr, sondern gleicht auch etwaige Kipp­bewegungen der Lamellen und der Querträger besser aus.For a bumpless transfer of traffic loads to the crossbeams, a tensioning body rests elastically against the crossbeam in the bearing frame of the joint edges and the lamellas. In this way, on the one hand, the cross member is pressed elastically downwards onto its elastomeric plain bearings, and, on the other hand, the lamellae with their elastomeric plain bearings are pressed down against the upper flange of the cross members. This not only prevents rattling noises from traffic, but also better compensates for any tilting movements of the slats and the cross members.

Zur Anlenkung der Steuerschere sind zweckmäßig unter den Lamellen und Randlamellen Lagerzapfen angeordnet. Damit etwaige Kippbewegungen der Lamellen nicht auf die Steuerschere übertragen werden, ist zwischen den Lagerzapfen und den Lagerbuchsen der Kreuzlager je­weils ein elastischer Lagerring angeordnet. Diese Lage­rung fängt etwaige vertikale und horizontale Kraft­komponenten auf, so daß auch Stoßbelastungen der Lamel­ len praktisch nicht auf die Steuerschere übertragen werden.For the articulation of the control scissors bearing journals are expediently arranged under the lamellae and edge lamellae. So that any tilting movements of the lamellae are not transmitted to the control shears, an elastic bearing ring is arranged between the bearing journal and the bearing bush of the cross bearing. This storage absorbs any vertical and horizontal force components, so that shock loads on the lamella len practically not be transferred to the control scissors.

Die Spannkörper können aus einem elastischen Gummi oder Kunststoff bestehen, welcher um ein gewisses Maß zusammendrückbar ist. Diese Spannkörper erzeugen nicht nur die Vorspannkraft, sondern vereinfachen auch die Montage des Lamellenüberganges und den Austausch verschleißender Gleitlager und der Spannkörper selbst in deutlicher Weise. So werden durch einfaches Anhe­ben der Querträger die oberen elastischen Spannkörper in den U-förmigen Lagerrahmen zusammengepreßt und die unteren elastomeren Gleitlager für einen Austausch freigelegt. Sind diese elastomeren Gleitlager heraus­genommen, können die Querträger auch auf die nackten U-förmigen Rahmen gelegt und die oberen Spannkörper ausgetauscht werden. In entsprechender Weise lassen sich die oberen elastomeren Gleitlager und die unte­ren Spannkörper in den den Lamellen zugehörigen recht­eckförmigen Lagerrahmen austauschen.The clamping bodies can consist of an elastic rubber or plastic, which can be compressed to a certain extent. These clamping bodies not only generate the preload force, but also significantly simplify the assembly of the lamella transition and the replacement of wear-bearing bearings and the clamping body itself. Thus, by simply lifting the crossbeams, the upper elastic clamping bodies are pressed into the U-shaped bearing frame and the lower elastomeric plain bearings are exposed for replacement. Once these elastomeric plain bearings have been removed, the cross members can also be placed on the bare U-shaped frame and the upper clamping bodies can be replaced. The upper elastomeric plain bearings and the lower clamping bodies can be exchanged in a corresponding manner in the rectangular bearing frame associated with the lamellae.

Die Erfindung ist in der Zeichnung in einem Ausfüh­rungsbeispiel dargestellt; es zeigt:

  • Fig. 1 einen Abschnitt eines Lamellenüberganges in einer Draufsicht und teilweise geschnit­ten,
  • Fig. 2 den Gegenstand der Fig. 1 in einem Schnitt nach Linie I - I,
  • Fig. 3 den Gegenstand der Fig. 1 in einem Schnitt nach Linie II - II,
  • Fig. 4 den linken Teil des Gegenstandes der Fig. 3 in einem größeren Maßstab und geschnittener Steuerschere nach Linie V - V der Fig. 1,
  • Fig. 5 den Gegenstand der Fig. 2 in einem Schnitt nach Linie III - III und
  • Fig. 6 den Gegenstand der Fig. 2 in einem Schnitt nach Linie IV - IV.
The invention is shown in the drawing in one embodiment; it shows:
  • 1 shows a section of a lamella transition in a top view and partially in section,
  • 2 in a section along line I - I,
  • 3 shows the object of FIG. 1 in a section along line II - II,
  • 4 shows the left part of the object of FIG. 3 on a larger scale and cut control scissors along line V - V of FIG. 1,
  • Fig. 5 shows the subject of Fig. 2 in a section along line III - III and
  • Fig. 6 shows the subject of Fig. 2 in a section along line IV - IV.

Der in Fig. 1 gezeigte Lamellenübergang dient der Überbrückung einer Dehnfuge, die zwischen den Fugen­rändern 1 eines Brücken- und Anschlußbauwerkes o. dgl. gebildet wird. An den beiden Fugenrändern 1 ist jeweils eine Randschiene 2 angebracht, an der mehrere die Dehn­fuge überbrückende Querträger 3 gleit- und kippbar ge­lagert sind. Auf den Querträgern 3 sind längs der Dehn­fuge verlaufende Lamellen 4 gleitbar gelagert. An den Randschienen 2 ist je eine den Lamellen 4 entsprechende Randlamelle 5 befestigt. Beim Überfahren der Dehnfuge wird die Verkehrslast von den Lamellen 4 aufgenommen und über die Querträger 3 auf die Randschienen 2 des Brücken- und Anschlußbauwerkes übertragen. Damit der Abstand zwischen den Lamellen 4 untereinander und gegenüber den Randlamellen 5 bei einer Veränderung der Fugenbreite stets gleich ist, sind die beiden Randschienen 2 bzw. Randlamellen 5 durch Steuersche­ren 6 verbunden, an deren Kreuzlagern 32 die Lamel­len 4 angelenkt sind. Diese in der Art einer Nürnber­ger Schere ausgebildeten Steuerscheren 6 sind zwischen den Querträgern 3 angeordnet. Zwischen den Lamellen 4 untereinander und gegenüber den Randlamellen 5 ist je­weils ein Dichtungsprofil 28 eingesetzt, welches Regen­wasser seitlich zum Fahrbahnrand ableitet und die Funk­tionsteile des Lamellenübergangs vor Verschmutzung schützt.The lamella transition shown in FIG. 1 serves to bridge an expansion joint which is formed between the joint edges 1 of a bridge and connecting structure or the like. An edge rail 2 is attached to each of the two joint edges 1, on which several cross members 3 bridging the expansion joint are slidably and tiltably mounted. On the cross members 3 slats 4 are slidably mounted along the expansion joint. On the edge rails 2, an edge plate 5 corresponding to the plates 4 is fastened. When the expansion joint is passed over, the traffic load is absorbed by the slats 4 and transmitted via the cross members 3 to the edge rails 2 of the bridge and connecting structure. So that the distance between the lamellae 4 with respect to one another and with respect to the edge lamellae 5 is always the same when the joint width changes, the two edge rails 2 and edge lamellae 5 are connected by control shears 6, on the cross bearings 32 of which the lamellae 4 are articulated. These control scissors 6, which are designed in the manner of a Nuremberg pair of scissors, are arranged between the cross members 3. Between the slats 4 with each other and with respect to the edge slats 5, a sealing profile 28 is inserted, which drains rainwater laterally to the edge of the road and protects the functional parts of the slat transition from dirt.

Wie aus Fig. 2 erkenntlich, sind in den Randschienen 2 Öffnungen 7 vorgesehen, durch welche die Enden der Quer­träger 3 in Kästen 15 ragen. Zur Lagerung der Querträ­ ger 3 sind, wie auch Fig. 5 verdeutlicht, an den Rand­schienen 2 unter der Randlamelle 5 U-förmige Lager­rahmen 8 angeschweißt, durch welche die an ihren vier Seiten mit Gleitschichten 17 versehenen Quer­träger 3 hindurchragen und welche deren Kräfte auf­nehmen. Zur Lagerung der Querträger 3 in den Lager­rahmen 8 sind elastomere Gleitlager 9 vorgesehen, die jeweils mit einem Zapfen 10 in eine Bohrung 11 ragen. Weiterhin sind an den beiden Seiten und oben elastische Spannkörper 12 angebracht, die ebenfalls mit einem Zapfen 13 in eine Bohrung 14 des Lagerrah­mens 8 eingesetzt sind. Diese Spannkörper 12 bestehen aus einem elastischen Gummi oder Kunststoff und sind soweit zusammendrückbar, daß beim Anheben der Quer­träger mittels eines Kranes o. dgl. die unteren elasto­meren Gleitlager 9 für einen Austausch freiliegen. Die Lagerung der Querträger 3 in den Lagerrahmen 8 ermög­licht einen einwandfreien Dehnungsausgleich, wobei die Querträger 3 in den Lagerrahmen 8 gleiten. Die Lagerung läßt auch Kippbewegung der Querträger 3 zu, wenn die Lagerrahmen 8 auf beiden Fugenseiten unter­schiedliche Höhenlagen, z. B. aufgrund abweichender vertikaler Ausdehnungen der betreffenden Bauwerke, einnehmen. Zur Sicherung der Querträger 3 gegen ein Herausrutschen sind sie an ihren Enden mit einem An­schlag 16 versehen.As can be seen from FIG. 2, openings 7 are provided in the edge rails 2, through which the ends of the cross members 3 protrude into boxes 15. For storing the cross beam ger 3 are, as also Fig. 5 illustrates, welded to the edge rails 2 under the edge lamella 5 U-shaped bearing frame 8 through which the cross members 3 provided on their four sides with sliding layers 17 protrude and which absorb their forces. To mount the cross member 3 in the bearing frame 8, elastomeric plain bearings 9 are provided, each of which projects into a bore 11 with a pin 10. Furthermore, elastic clamping bodies 12 are attached to the two sides and above, which are also inserted with a pin 13 into a bore 14 of the bearing frame 8. This clamping body 12 consist of an elastic rubber or plastic and are compressible to the extent that when lifting the cross member by means of a crane or the like. The lower elastomeric plain bearings 9 are exposed for replacement. The storage of the cross member 3 in the bearing frame 8 enables a perfect expansion compensation, the cross member 3 sliding into the bearing frame 8. The storage also allows tilting of the cross member 3 when the bearing frame 8 on both sides of the joint at different heights, for. B. due to different vertical dimensions of the buildings concerned. To secure the cross members 3 against slipping out, they are provided with a stop 16 at their ends.

Der Lagerung der Lamellen 4 auf den Querträgern 3 dienen rechteckige Lagerrahmen 18, welche die Quer­träger 3 umfassen. Die Lagerrahmen 18 sind, wie Fig. 6 zeigt, in Ausschnitte 21 eingebaut, die in den Steg 20 bis kurz unter den oberen, der Aufnahme der Dich­tungsprofile 28 dienenden Profilrand 19 reichen. Hier­durch ist der Abstand zwischen den Lagerstellen auf den Querträgern 3 und den von den Verkehrslasten be­aufschlagten Oberflächen der Lamellen 4 sehr gering.Rectangular bearing frames 18, which include the cross members 3, serve to support the slats 4 on the cross members 3. The bearing frame 18, as shown in FIG. 6, is installed in cutouts 21 which extend into the web 20 to just below the upper profile edge 19 which serves to accommodate the sealing profiles 28. As a result, the distance between the bearing points on the cross members 3 and the surfaces of the lamella 4 which are acted upon by the traffic loads is very small.

Die Lagerrahmen 18 sind jeweils mit einem oberen elastomeren Gleitlager 22, das mit einem Zapfen 23 in eine Bohrung 24 eingreift, und mit einem unteren elastischen Spannkörper 25 versehen, dessen Zapfen 26 in einer Bohrung 27 einliegt. Bei diesem Lager werden die Lamellen 4 von den Spannkörpern 25 nach unten ge­spannt. Durch die hohe und relativ breite Lagerfläche sind die Lamellen 4 sehr kippsicher. Auch bei diesen Lagerrahmen 18 lassen sich die verschleißenden Lager­teile, nämlich die elastomeren Gleitlager 22 und die Spannkörper 25 nach Anheben der Lamellen 4 leicht austauschen. Da die Gleitlager 9 und 22 und die Spann­körper 12 und 25 der Lagerrahmen 8 und 18 gleich aus­gebildet sind, sind für Austauschzwecke nur zwei Bau­teile erforderlich.The bearing frames 18 are each provided with an upper elastomeric sliding bearing 22, which engages with a pin 23 in a bore 24, and with a lower elastic clamping body 25, the pin 26 of which lies in a bore 27. In this bearing, the lamellae 4 are tensioned downwards by the clamping bodies 25. Due to the high and relatively wide bearing surface, the slats 4 are very stable. With these bearing frames 18 too, the wearing bearing parts, namely the elastomeric sliding bearings 22 and the clamping bodies 25, can easily be replaced after the lamellae 4 have been raised. Since the plain bearings 9 and 22 and the clamping bodies 12 and 25 of the bearing frames 8 and 18 are of the same design, only two components are required for exchange purposes.

Die zur Abstandssteuerung vorgesehene Steuerschere 6 ist in den Fig. 3 und 4 dargestellt. Die beiden Enden der Steuerschere 6 sind an den beiden Fugenrändern 1 unterhalb der zugehörigen Randlamellen 5 angelenkt. Zur Bildung dieser Endlager 34 ist unter den Randlamel­len 5 ein Lagerblock 30 vorgesehen, in den ein Lager­zapfen 31 z. B. mittels einer Madenschraube o. dgl. be­festigt ist. Entsprechende Lagerzapfen 31 sind in La­gerblöcken 33 unter den Untergurten 29 der Lamellen 4 befestigt, auf welche die Kreuzlager 32 der Steuer­schere 6 aufgesteckt sind. In den Bohrungen 35 der Kreuzlager 32 ist jeweils eine Lagerbuchse 36 befestigt, und die Lagerzapfen 31 sind nach unten verjüngt und mit einem elastischen Lagerring 37 in der Lagerbuchse 36 verspannt. Die elastischen Lagerringe 37 bestehen aus Elastomeren oder ähnlichen Werkstoffen. Alle Kreuzla­ger 32 und Endlager 34 haben in vertikaler Richtung ein Spiel, so daß vertikale Kraftkomponenten nicht, je­doch die horizontalen Steuerkräfte übertragen werden. Die der Steuerschere 6 zugehörigen Seitenlager 38 sind in den Fig. 1 und 4 dargestellt.The control shears 6 provided for distance control are shown in FIGS. 3 and 4. The two ends of the control scissors 6 are articulated on the two joint edges 1 below the associated edge blades 5. To form these end bearings 34, a bearing block 30 is provided under the edge plates 5, in which a journal 31 z. B. is fastened by means of a grub screw or the like. Corresponding bearing journals 31 are fastened in bearing blocks 33 under the lower chords 29 of the slats 4, onto which the cross bearings 32 of the control scissors 6 are attached. A bearing bush 36 is fastened in each of the bores 35 of the cross bearing 32, and the bearing journals 31 are tapered downward and braced in the bearing bush 36 with an elastic bearing ring 37. The elastic bearing rings 37 consist of elastomers or similar materials. All cross bearings 32 and end bearings 34 have play in the vertical direction, so that vertical force components are not, but the horizontal control forces are transmitted. The side bearings 38 associated with the control scissors 6 are shown in FIGS. 1 and 4.

Claims (6)

1. Lamellenübergang für Dehnfugen an Brücken o. dgl., bestehend aus parallel zur Dehnfuge verlaufenden, auf an den Fugenrändern (1) verschieb- und kipp­bar gelagerten Querträgern (3) verschiebbar abge­stützten Lamellen (4) mit einer Einrichtung zur Abstandssteuerung, wobei an den mit einer Rand­lamelle (5) versehenen Fugenrändern U-förmige Lagerrahmen (8) für die Querträger (3) und unter den Lamellen (4) rechteckige, die Querträger (3) umfassende Lagerrahmen (18) angebracht sind, in denen die Querträger (3) vertikal gegen ein elastomeres Gleitlager (9) verspannt sind, dadurch gekennzeichnet, daß die beiden Rand­lamellen (5) durch wenigstens eine Steuerschere (6) verbunden sind, an deren Kreuzlagern (32) die Lamellen (4) angelenkt sind.1. Slat transition for expansion joints on bridges or the like, consisting of parallel to the expansion joint, on the joint edges (1) slidably and tiltably supported cross members (3) slidably supported slats (4) with a device for distance control, whereby at the joint edges provided with an edge lamella (5), U-shaped bearing frames (8) for the crossbeams (3) and rectangular bearing frames (18) surrounding the crossbeams (3), in which the crossbeams (3) are attached, underneath the lamellae (4) are braced vertically against an elastomeric plain bearing (9), characterized in that the two edge plates (5) are connected by at least one control shear (6), on the cross bearings (32) of which the plates (4) are articulated. 2. Lamellenübergang nach Anspruch 1, dadurch gekenn­zeichnet, daß die rechteckigen Lagerrahmen (18) in je einen bis etwa unter den oberen Profilrand (19) reichenden Ausschnitt (21) der Lamellen (4) eingebaut sind.2. Slat transition according to claim 1, characterized in that the rectangular bearing frame (18) in one to about below the upper profile edge (19) reaching cutout (21) of the slats (4) are installed. 3. Lamellenübergang nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in den Lagerrahmen (8,18) je­weils ein elastisch gegen den Querträger (3) an­liegender Spannkörper (12,25) angeordnet ist.3. lamella transition according to claim 1 or 2, characterized in that in the bearing frame (8, 18) an elastic against the cross member (3) abutting clamping body (12, 25) is arranged. 4. Lamellenübergang nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß unter den Lamellen (4) und Randlamellen (5) Lagerzapfen (31) für die Steuerschere (6) angeordnet sind.4. lamella transition according to one of claims 1 to 3, characterized in that under the lamellae (4) and edge lamellae (5) bearing pins (31) for the control shears (6) are arranged. 5. Lamellenübergang nach Anspruch 4, dadurch gekenn­zeichnet, daß zwischen den Lagerzapfen (31) und den Lagerbuchsen (36) der Kreuzlager (32) jeweils ein elastischer Lagerring (37) angeordnet ist.5. lamella transition according to claim 4, characterized in that between the bearing pin (31) and the bearing bushes (36) of the cross bearing (32) each have an elastic bearing ring (37) is arranged. 6. Lamellenübergang nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Spannkörper (12,25) aus einem elastischen Gummi oder Kunststoff bestehen.6. lamella transition according to one of claims 1 to 5, characterized in that the clamping body (12,25) consist of an elastic rubber or plastic.
EP85201523A 1985-09-23 1985-09-23 A grating bar-type bridging device for expansion joints in bridges Withdrawn EP0215980A1 (en)

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EP85201523A EP0215980A1 (en) 1985-09-23 1985-09-23 A grating bar-type bridging device for expansion joints in bridges

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EP85201523A EP0215980A1 (en) 1985-09-23 1985-09-23 A grating bar-type bridging device for expansion joints in bridges

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325737A2 (en) * 1988-01-26 1989-08-02 Glacier Gmbh - Sollinger Hütte Joint bridging arrangement
EP0771906A1 (en) * 1995-11-03 1997-05-07 Waagner-Biro Aktiengesellschaft Bridging construction particularly for connecting of a rail arrangement
EP1710351A1 (en) 2005-01-12 2006-10-11 Mageba S.A. Bridging device for an expansion joint in a drivable construction
WO2011144498A1 (en) * 2010-05-17 2011-11-24 Construction Research & Technology Gmbh Expansion joint system using flexible moment connection and friction springs
CN107119558A (en) * 2017-06-20 2017-09-01 浙江秦山橡胶工程股份有限公司 A kind of bridge extension joint of strong applicability
CN110055886A (en) * 2019-05-05 2019-07-26 李荣俊 A kind of Expansion Units for Highway Bridges sealed protective structure
CN110552287A (en) * 2019-10-09 2019-12-10 株洲时代新材料科技股份有限公司 Flexible telescopic mechanism for bridge and bridge telescopic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560816A (en) * 1967-04-05 1969-03-21
DE2316407A1 (en) * 1973-04-02 1974-10-17 Rheinstahl Ag CARRIAGE CROSSING FOR EXPANSION JOINTS ON ROAD BRIDGES
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
DE2750333A1 (en) * 1977-11-10 1979-09-06 Stalko Metallbau Gmbh & Co Bridge-type joint spanning structure - has toroidal return force spring mounting for guide rods under sliding pieces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560816A (en) * 1967-04-05 1969-03-21
DE2316407A1 (en) * 1973-04-02 1974-10-17 Rheinstahl Ag CARRIAGE CROSSING FOR EXPANSION JOINTS ON ROAD BRIDGES
US4120066A (en) * 1977-06-01 1978-10-17 Yves Gerald Leroux Expansion joint for roadway sections
DE2750333A1 (en) * 1977-11-10 1979-09-06 Stalko Metallbau Gmbh & Co Bridge-type joint spanning structure - has toroidal return force spring mounting for guide rods under sliding pieces

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325737A2 (en) * 1988-01-26 1989-08-02 Glacier Gmbh - Sollinger Hütte Joint bridging arrangement
EP0325737A3 (en) * 1988-01-26 1990-04-18 Glacier Gmbh - Sollinger Hutte Joint bridging arrangement
EP0771906A1 (en) * 1995-11-03 1997-05-07 Waagner-Biro Aktiengesellschaft Bridging construction particularly for connecting of a rail arrangement
EP1710351A1 (en) 2005-01-12 2006-10-11 Mageba S.A. Bridging device for an expansion joint in a drivable construction
WO2011144498A1 (en) * 2010-05-17 2011-11-24 Construction Research & Technology Gmbh Expansion joint system using flexible moment connection and friction springs
US8919065B2 (en) 2010-05-17 2014-12-30 Construction Research & Technology Gmbh Expansion joint system using flexible moment connection and friction springs
CN107119558A (en) * 2017-06-20 2017-09-01 浙江秦山橡胶工程股份有限公司 A kind of bridge extension joint of strong applicability
CN110055886A (en) * 2019-05-05 2019-07-26 李荣俊 A kind of Expansion Units for Highway Bridges sealed protective structure
CN110055886B (en) * 2019-05-05 2020-11-24 山东天智信息科技有限公司 Public road bridge roof beam telescoping device seals protective structure
CN110552287A (en) * 2019-10-09 2019-12-10 株洲时代新材料科技股份有限公司 Flexible telescopic mechanism for bridge and bridge telescopic device
CN110552287B (en) * 2019-10-09 2021-05-14 株洲时代新材料科技股份有限公司 Flexible telescopic mechanism for bridge and bridge telescopic device

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