EP0224601A1 - Device for bridging expansion joints in roadways, bridges or the like - Google Patents

Device for bridging expansion joints in roadways, bridges or the like Download PDF

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Publication number
EP0224601A1
EP0224601A1 EP85115172A EP85115172A EP0224601A1 EP 0224601 A1 EP0224601 A1 EP 0224601A1 EP 85115172 A EP85115172 A EP 85115172A EP 85115172 A EP85115172 A EP 85115172A EP 0224601 A1 EP0224601 A1 EP 0224601A1
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EP
European Patent Office
Prior art keywords
joint
slats
support
springs
attached
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP85115172A
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German (de)
French (fr)
Inventor
Reinhold Huber
Waldmar Köster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kober AG Glarus
Koerber AG
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Kober AG Glarus
Koerber AG
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Publication date
Application filed by Kober AG Glarus, Koerber AG filed Critical Kober AG Glarus
Priority to DE19858533644 priority Critical patent/DE8533644U1/de
Priority to EP85115172A priority patent/EP0224601A1/en
Priority to JP27890686A priority patent/JPS62137304A/en
Publication of EP0224601A1 publication Critical patent/EP0224601A1/en
Withdrawn legal-status Critical Current

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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
    • E01D19/062—Joints having intermediate beams

Definitions

  • the invention relates to a device for bridging expansion joints in carriageways, bridges or the like, with slats running parallel to the joint edges, which are displaceably supported on the cross-bridges bridging the joint and whose distances can be adjusted in a controlled manner by means of elastomeric shear springs which change the joint width Connect the lamellas with one another and with both joint edges in the manner of a closed timing chain.
  • Such a known device (DE 33 33 880) describes a direct attachment of the thrust springs to the undersides of the slats.
  • the thrust springs provide satisfactory control here the lamellae, so that the lamella distances between the opposite joint edges are approximately the same size; the fact that in the longitudinal direction of the slats there are a plurality of timing chains formed from thrust springs, there is moreover a torsion-free support of the slats with respect to a vertical axis; however, the thrust springs make no contribution to preventing the slats from tipping, ie to prevent rotation about their longitudinal axes. To prevent the slats from tilting, special measures are therefore required in the known device.
  • the lamellae are supported against one another and against the joint edges by two rows of rubber buffers arranged one above the other.
  • the lever arm for the return moment against tipping corresponds to the vertical distance between the upper and lower rows of rubber buffers.
  • the present invention has for its object to improve the elastic support of the slats against each other and against the joint edges in a device of the type mentioned, with the aim that the slats are held against tipping, regardless of the structural design of the supporting components the device.
  • timing chains are provided in horizontal planes spaced one above the other and that the thrust springs of at least one timing chain are attached directly or indirectly to rigid supports which are directed downwards from the slats protrude.
  • the arrangement of the supports makes it possible to arrange the two timing chains one above the other at a freely selectable vertical distance, preferably under the slats. Regardless of this, the lamella cross-section, and of course also the cross-member cross-section, can be designed according to the loads on the joint transition. A mutual one There is no influence between the dimensions of any structural components of the device and the arrangement of the timing chains on the supports.
  • the proposal of the invention creates the possibility that both the control force on the one hand and the restoring torque on the other hand can be selected independently of one another for the tilt protection.
  • the control force is determined by the course of the spring characteristic of the thrust springs; regardless of this, the restoring torque is determined by the lever arm, ie the vertical distance between the two timing chains. Both variables, spring stiffness and restoring torque, can therefore be varied independently of one another. It is essential that the shock-absorbing properties of the overall construction are unrestricted by the shear springs used according to the invention. Since, as already mentioned, the dimensions of the lamellae and crossbeams have no influence on the control force or the restoring torque, the overall construction can be optimally designed in all parts.
  • a preferred embodiment provides that the supports are attached to the underside of the slats between the cross members, elongated profile parts. According to the slats, the supports are close together. On each support, two timing chains engage on the opposite sides in the slat direction. These timing chains can have a different structure.
  • shear springs are fastened at one end to a support or a joint edge with the other end to a rigid tab, and that each tab connects either the shear springs of the joint edge and a support or two supports.
  • the shear stress in the shear springs when the joint is closed is zero. As the joint opens, the shear stress, and accordingly the control force, increases linearly.
  • the thrust springs are each fastened at one end to a support or a joint edge and at the other end to a rigid counterpart, and that each Counterpart is attached to a column or a joint edge.
  • timing chain acts on the supports, while a second timing chain sits directly on the underside of the slats, such as in the device known from the first-mentioned document.
  • constructions with other spring elements such as compression springs, instead of thrust springs; however, such constructions are complex; they also have the disadvantage that their preload decreases relatively quickly due to aging of the elastomeric material. Such constructions can therefore be disregarded due to their lack of practical suitability.
  • the device for bridging expansion joints shown in different sections in FIGS. 1 to 4 comprises supporting elements with slats 1 that terminate on the surface of the respective traffic route or the respective carriageway and are slidably mounted on the cross members 3 bridging the joint 2. So that the slats 1 cannot lift upwards, they have U-shaped brackets 4 on their underside, through the openings of which the cross members 3 are inserted. Within the bracket 4, the cross members 3 are supported in a sliding manner up and down by elastomeric bearing pieces 5 that are prestressed in the vertical direction. Similarly, the cross members 3 are at their opposite ends on horizontally projecting shoulders 7 of the opposite joint edges 6 stored. 2, an edge bar 8 is firmly connected to the joint edge 6 opposite the shoulder 7 of a joint edge.
  • the edge beam 8 is preferably constructed identically to the slats 1, which considerably simplifies the connection of the overall construction to the joint edges.
  • a control device is connected to the edge beam 8, which comprises control chains formed from thrust springs 9, each control chain forming an elastic connection of the slats 1 with one another and with the edge beams 8.
  • the thrust springs 9 are seated at one end on vertical supports 10 fastened to the underside of the lamellae 1, at two different heights. In this way, there are two control chains arranged at a vertical distance h on the supports 10, which are shown in a side view in FIG. 3. A top view of the lower timing chain is shown in FIG. 4.
  • the thrust springs 9 of adjacent slats 1 or a slat 1 and an edge beam 8 are connected to one another via rigid tabs 11, so that the thrust springs 9 deform, increasingly, the more the joint widens.
  • both the lamellas or edge beams and their supports 10 lie side by side, the shear springs 9 relaxing are.
  • the thrust springs 9 act as points of attack for restoring forces R1, R2, which form a restoring torque against tipping with the lever arm h.
  • Fig. 4 the lower timing chain is shown at approximately the middle joint opening, ie the shear deformation of the shear springs 9 achieved here corresponds to approximately half the value of their maximum control force.
  • the situation is somewhat different in the variant shown in FIG. 5. Only half as many thrust springs 9 are provided here.
  • the shear springs 9 are de-energized in the drawn central joint opening. Because the thrust springs 9, unlike in FIG.
  • brackets 4 can also be used as varinates of the supports 10, provided that extensions 13 projecting downwards are attached, which are shown in broken lines.
  • the thrust springs were each attached to the outer sides of the extensions 13 or a bracket 4 facing away from one another.

Abstract

In a device for bridging expansion joints in roads, bridges or the like, with bars (1) which extend parallel to the joint edges and are supported displaceably on crossmembers (3) bridging the joint (2) and the spacings of which can be adjusted, when there are changes in the joint width, under the control of elastomeric push springs (9) which connect the bars to one another and to the two joint edges (6, 8) in the manner of a closed control chain, for the tilt-proof mounting of the bars there are two closed control chains connecting these to one another and to the two joint edges and consisting of the elastomeric push springs. These control chains lie at a distance one above the other in two horizontal planes. The push springs are fastened directly or indirectly to bend-resistant stays (10) projecting downwards from the bars. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Überbrücken von Dehnungsfugen in Fahrbahnen, Brücken oder dgl., mit parallel zu den Fugenrändern verlaufenden Lamel­len, welche auf die Fuge überbrückenden Querträgern verschieblich abgestützt sind und deren Abstände bei Änderungen der Fugenbreite mittels elastomerer Schub­federn gesteuert verstellbar sind, welche die Lamellen miteinder und mit beiden Fugenrändern in Art einer geschlossenen Steuerkette verbinden.The invention relates to a device for bridging expansion joints in carriageways, bridges or the like, with slats running parallel to the joint edges, which are displaceably supported on the cross-bridges bridging the joint and whose distances can be adjusted in a controlled manner by means of elastomeric shear springs which change the joint width Connect the lamellas with one another and with both joint edges in the manner of a closed timing chain.

Eine derartige bekannte Vorrichtung (DE 33 33 880) beschreibt eine direkte Befestigung der Schubfedern an den Unterseiten der Lamellen . Zwar bewirken die Schubfedern hier eine zufriedenstellende Steuerung der Lamellen, so daß die Lamellenabstände zwischen den gegenüberliegenden Fugenrändern etwa gleich groß sind; dadurch, daß in Lamellenlängsrichtung mehrere aus Schubfedern gebildete Steuerketten vorhanden sind ergibt sich darüber hinaus eine, bezogen auf eine ver­tikale Achse, verdrehungsfreie Abstützung der Lamellen; die Schubfedern leisten jedoch keinen Beitrag zur Kipp­sicherung der Lamellen, d.h. zur Verhinderung einer Verdrehung um ihre Längsachsen. Zur Kippsicherung der Lamellen sind daher bei den der bekannten Vorrichtung besondere Maßnahmen erforderlich.Such a known device (DE 33 33 880) describes a direct attachment of the thrust springs to the undersides of the slats. The thrust springs provide satisfactory control here the lamellae, so that the lamella distances between the opposite joint edges are approximately the same size; the fact that in the longitudinal direction of the slats there are a plurality of timing chains formed from thrust springs, there is moreover a torsion-free support of the slats with respect to a vertical axis; however, the thrust springs make no contribution to preventing the slats from tipping, ie to prevent rotation about their longitudinal axes. To prevent the slats from tilting, special measures are therefore required in the known device.

Bei einer anderen bekannten Vorrichtung (GB 841 568) sind die Lamellen durch zwei Reihen übereinander ange­ordneter Gummipuffer gegenseitig und gegenüber den Fugenrändern abgestützt . Der Hebelarm für das Rück­stellmoment gegen Kippen entspricht hierbei dem verti­kalen Abstand zwischen der oberen und der unteren Rei­he von Gummipuffern. Eine Vergrößerung des Hebelarms im Interesse eines größeren Rückstellmoments bedingt eine größere Bauhöhe der Lamellen und damit der Gesamt­konstruktion.In another known device (GB 841 568), the lamellae are supported against one another and against the joint edges by two rows of rubber buffers arranged one above the other. The lever arm for the return moment against tipping corresponds to the vertical distance between the upper and lower rows of rubber buffers. An increase in the lever arm in the interest of a larger restoring torque requires a greater overall height of the slats and thus the overall construction.

Demgegenüber liegt der vorliegenden Erfindung die Auf­gabe zugrunde, bei einer Vorrichtung der eingangs ge­nannten Art die elastische Abstützung der Lamellen gegeneinander und gegenüber den Fugenrändern zu verbes­sern, mit dem Ziel, daß die Lamellen kippsicher gehal­ten sind, und zwar unabhängig von der konstruktiven Auslegung der tragenden Bauteile der Vorrichtung.In contrast, the present invention has for its object to improve the elastic support of the slats against each other and against the joint edges in a device of the type mentioned, with the aim that the slats are held against tipping, regardless of the structural design of the supporting components the device.

Diese Aufgabe wird erfindungsgemäß an einer Vorrichtung der eingangs genannten Art dadurch gelöst, daß minde­stens zwei derartige Steuerketten in mit Abstand über­einander liegenden horizontalen Ebenen vorgesehen sind und daß die Schubfedern wenigstens einer Steuerkette direkt oder indirekt an biegesteifen Stützen befestigt sind, welche von den Lamellen nach unten ragen.This object is achieved in a device of the type mentioned in that at least two such timing chains are provided in horizontal planes spaced one above the other and that the thrust springs of at least one timing chain are attached directly or indirectly to rigid supports which are directed downwards from the slats protrude.

Durch die Anordnung der Stützen ergibt sich die Mög­lichkeit, die beiden Steuerketten in einem frei wähl­baren vertikalen Abstand übereinander, bevorzugt unter den Lamellen anzuordnen. Davon unabhängig kann der Lamellenquerschnitt, wie selbstverständlich auch der Querträgerquerschnitt entsprechend den Belastungen des Fugenübergangs ausgelegt werden. Eine gegenseitige Beeinflußung zwischen den Abmessungen irgendwelcher tragender Bauteile der Vorrichtung und der Anordnung der Steuerketten an den Stützen besteht nicht.The arrangement of the supports makes it possible to arrange the two timing chains one above the other at a freely selectable vertical distance, preferably under the slats. Regardless of this, the lamella cross-section, and of course also the cross-member cross-section, can be designed according to the loads on the joint transition. A mutual one There is no influence between the dimensions of any structural components of the device and the arrangement of the timing chains on the supports.

Darüber hinaus schafft der Erfindungsvorschlag die Möglichkeit, daß sowohl die Steuerkraft einerseits als auch das Rückstellmoment andererseits für die Kipp­sicherung voneinander unabhängig wählbar sind. Die Steuerkraft wird dabei bestimmt vom Verlauf der Feder­kennlinie der Schubfedern; davon unabhängig wird das Rückstellmoment bestimmt vom Hebelarm, d.h. vom verti­kalen Abstand der beiden Steuerketten. Beide Größen, Federsteifigkeit und Rückstellmoment, können also unab­hängig voneinander variiert werden. Wesentlich ist, daß durch die erfindungsgemäß verwendeten Schubfedern die stoßdämpfenden Eigenschaften der Gesamtkonstruk­tion uneingeschränkt vorhanden sind. Da, wie bereits gesagt, die Abmessungen von Lamellen und Querträgern weder einen Einfluß auf die Steuerkraft noch auf das Rückstellmoment haben, kann die Gesamtkonstruktion in allen Teilen optimal ausgelegt werden.In addition, the proposal of the invention creates the possibility that both the control force on the one hand and the restoring torque on the other hand can be selected independently of one another for the tilt protection. The control force is determined by the course of the spring characteristic of the thrust springs; regardless of this, the restoring torque is determined by the lever arm, ie the vertical distance between the two timing chains. Both variables, spring stiffness and restoring torque, can therefore be varied independently of one another. It is essential that the shock-absorbing properties of the overall construction are unrestricted by the shear springs used according to the invention. Since, as already mentioned, the dimensions of the lamellae and crossbeams have no influence on the control force or the restoring torque, the overall construction can be optimally designed in all parts.

Eine bevorzugte Ausführungsform sieht vor, daß die Stützen an der Unterseite der Lamellen zwischen den Querträgern befestigte, langestreckte Profilteile sind. Entsprechend den Lamellen stehen die Stützen dicht nebeneinander. An jeder Stütze greifen zwei Steuerket­ten an den in Lamellenrichtung gegenüberliegenden Sei­ten an. Diese Steuerketten können einen unterschied­lichen Aufbau besitzen.A preferred embodiment provides that the supports are attached to the underside of the slats between the cross members, elongated profile parts. According to the slats, the supports are close together. On each support, two timing chains engage on the opposite sides in the slat direction. These timing chains can have a different structure.

Eine Ausführungsform sieht vor, daß die Schubfedern jeweils mit einem Ende an einer Stütze oder einem Fu­genrand mit dem anderen Ende an einer biegesteifen Lasche befestigt sind, und daß jede Lasche entweder die Schubfedern des Fugenrands und einer Stütze oder zweier Stützen miteinander verbindet. Bei dieser Aus­führungsform ist die Schubspannung in den Schubfedern bei geschlossener Fuge gleich null. Mit sich zunehmend öffnender Fuge steigt die Schubspannung, und entspre­chend die Steuerkraft, linear an.One embodiment provides that the shear springs are fastened at one end to a support or a joint edge with the other end to a rigid tab, and that each tab connects either the shear springs of the joint edge and a support or two supports. In this embodiment, the shear stress in the shear springs when the joint is closed is zero. As the joint opens, the shear stress, and accordingly the control force, increases linearly.

Bei einer zweiten Ausführungsform ist vorgesehen, daß die Schubfedern jeweils mit einem Ende an einer Stütze oder einem Fugenrand und mit dem anderen Ende an einem biegesteifen Gegenstück befestigt sind, und daß jedes Gegenstück an einer Stütze oder einem Fugenrand be­festigt ist. Bei dieser Ausführungsform sind nur halb so viele Schubfedern vorhanden. Die Steuerkraft baut sich auf aus einer neutralen Stellung bei halb geöffne­ter Fuge, wobei die Federkennlinie verglichen mit vor­stehender Ausführungsform entsprechend steiler ver­läuft.In a second embodiment it is provided that the thrust springs are each fastened at one end to a support or a joint edge and at the other end to a rigid counterpart, and that each Counterpart is attached to a column or a joint edge. In this embodiment, there are only half as many thrust springs. The control force builds up from a neutral position with the joint half open, the spring characteristic curve correspondingly steeper compared to the above embodiment.

Im Rahmen der Erfindung ist denkbar, daß eine Steuer­kette an den Stützen angreift, während eine zweite Steuerkette direkt an der Untersteite der Lamellen sitzt, wie beispielsweise bei der aus der erstgenannten Druckschrift bekannten Vorrichtung. Ferner ist es zwar grundsätzlich denkbar, anstelle von Schubfedern Kon­struktionen mit anderem Federelementen wie z.B. Druck­federn vorzusehen; solche Konstruktionen sind jedoch aufwendig; sie haben darüber hinaus noch den Nachteil, daß deren Vorspannkraft infolge Alterung des elastome­ren Werkstoffs verhältnismäßig rasch abnimmt. Derartige Konstruktionen können daher wegen fehlender praktischer Eignung unberücksichtigt bleiben.In the context of the invention it is conceivable that a timing chain acts on the supports, while a second timing chain sits directly on the underside of the slats, such as in the device known from the first-mentioned document. Furthermore, it is fundamentally conceivable to provide constructions with other spring elements, such as compression springs, instead of thrust springs; however, such constructions are complex; they also have the disadvantage that their preload decreases relatively quickly due to aging of the elastomeric material. Such constructions can therefore be disregarded due to their lack of practical suitability.

Im folgenden wird die Erfindung anhand der Zeichnung erläutert. Es zeigt

  • Fig. 1 einen vertikalen Längsschnitt durch eine erfindungsgemäße Vorrichtung
  • Fig. 2 einen vertikalen Querschnitt gem. II-II der Fig. 1
  • Fig. 3 einen vertikalen Querschnitt gem. III-III der Fig. 1
  • Fig. 4 einen horizontalen Querschnitt durch die Stützen gem. IV-IV der Fig. 3 und
  • Fig. 5 eine Variante zu Fig. 3.
The invention is explained below with reference to the drawing. It shows
  • Fig. 1 shows a vertical longitudinal section through a device according to the invention
  • Fig. 2 shows a vertical cross section. II-II of FIG. 1
  • Fig. 3 shows a vertical cross section. III-III of Fig. 1st
  • Fig. 4 shows a horizontal cross section through the supports. IV-IV of Fig. 3 and
  • 5 shows a variant of FIG. 3.

Die in den Figuren 1 bis 4 in verschiedenen Schnitten dargestellte Vorrichtung zum Überbrücken von Dehnungs­fugen unfaßt als tragende Bauelemente mit der Oberflä­che des jeweiligen Verkehrswegs bzw. der jeweiligen Fahrbahn abschließende Lamellen 1, welche verschieblich auf die Fuge 2 überbrückenden Querträgern 3 gelagert sind. Damit die Lamellen 1 nicht nach oben abheben können besitzen sie an ihrer Unterseite U-förmige Bü­gel 4, durch deren Öffnungen die Querträger 3 hindurch­gesteckt sind. Innerhalb der Bügel 4 sind die Querträ­ger 3 nach oben und unten durch in vertikaler Richtung vorgespannte elastomere Lagerstücke 5 gleitend abge­stützt. In ähnlicherweise sind die Querträger 3 an ihren gegenüberliegenden Enden auf horizontal vorsprin­genden Schultern 7 der gegenüberliegenden Fugenränder 6 gelagert. Gegenüber der Schulter 7 eines Fugenrands ist, wie Fig. 2 zeigt, ein Randbalken 8 fest am Fugen­rand 6 angeschlossen. Der Randbalken 8 ist bevorzugt baugleich mit den Lamellen 1 ausgebildet, wodurch sich der Anschluß der Gesamtkonstruktion an die Fugenränder erheblich vereinfacht. So ist an den Randbalken 8 eine Steuervorrichtung angeschlossen, welche aus Schubfe­dern 9 gebildete Steuerketten umfaßt, wobei jede Steuerkette eine elastische Verbindung der Lamellen 1 untereinander und mit den Randbalken 8 bildet. Die Schubfedern 9 sitzen mit ihrem einen Ende an vertika­len , an der Unterseite der Lamellen 1 befestigten Stützen 10, und zwar in zwei verschiedenen Höhen. Auf diese Weise ergeben sich zwei mit vertikalem Abstand h an den Stützen 10 angeordnete Steuerketten, welche in Fig. 3 in der Seitenansicht dargestellt sind. Eine Draufsicht auf die untere Steuerkette zeigt Fig. 4. Man erkennt, daß die Schubfedern 9 benachbarter Lamel­len 1 bzw. einer Lamelle 1 und eines Randbalkens 8 über biegesteife Laschen 11 miteinander verbunden sind, so daß die Schubfedern 9 sich verformen, und zwar zu­nehmend , je mehr sich die Fuge verbreitert. In der geschlossenen Stellung der Fuge liegen sowohl die La­mellen bzw. Randbalken als auch deren Stützen 10 seit­lich aneinander, wobei die Schubfedern 9 entspannt sind. Dadurch, daß auf diese Weise zwei im Abstand h übereinander liegende von Fugenrand zu Fugenrand durchgehende elastische Steuerketten entstehen, ergibt sich neben der Steuerungsfunktion als weitere Funktion eine kippsichere Lagerung der auf den Querträgern 3 gleitenden Lamellen 1. Dabei wirken die Schubfedern 9 als Angriffspunkte für Rückstellkräfte R1, R2, welche ein Rückstellmoment gegen Kippen mit dem Hebelarm h bilden.The device for bridging expansion joints shown in different sections in FIGS. 1 to 4 comprises supporting elements with slats 1 that terminate on the surface of the respective traffic route or the respective carriageway and are slidably mounted on the cross members 3 bridging the joint 2. So that the slats 1 cannot lift upwards, they have U-shaped brackets 4 on their underside, through the openings of which the cross members 3 are inserted. Within the bracket 4, the cross members 3 are supported in a sliding manner up and down by elastomeric bearing pieces 5 that are prestressed in the vertical direction. Similarly, the cross members 3 are at their opposite ends on horizontally projecting shoulders 7 of the opposite joint edges 6 stored. 2, an edge bar 8 is firmly connected to the joint edge 6 opposite the shoulder 7 of a joint edge. The edge beam 8 is preferably constructed identically to the slats 1, which considerably simplifies the connection of the overall construction to the joint edges. Thus, a control device is connected to the edge beam 8, which comprises control chains formed from thrust springs 9, each control chain forming an elastic connection of the slats 1 with one another and with the edge beams 8. The thrust springs 9 are seated at one end on vertical supports 10 fastened to the underside of the lamellae 1, at two different heights. In this way, there are two control chains arranged at a vertical distance h on the supports 10, which are shown in a side view in FIG. 3. A top view of the lower timing chain is shown in FIG. 4. It can be seen that the thrust springs 9 of adjacent slats 1 or a slat 1 and an edge beam 8 are connected to one another via rigid tabs 11, so that the thrust springs 9 deform, increasingly, the more the joint widens. In the closed position of the joint, both the lamellas or edge beams and their supports 10 lie side by side, the shear springs 9 relaxing are. The fact that in this way two elastic control chains lying one above the other from the edge of the joint to the edge of the joint result, in addition to the control function, results in a tilt-proof mounting of the slats 1 sliding on the cross members 3. The thrust springs 9 act as points of attack for restoring forces R1, R2, which form a restoring torque against tipping with the lever arm h.

In Fig. 4 ist die untere Steuerkette bei etwa mittlerer Fugenöffnung dagestellt, d.h. die hier erreichte Schub­verformung der Schubfedern 9 entspricht etwa dem halben Wert ihrer maximalen Steuerkraft. Etwas anders sind die Verhältnisse bei der in Fig. 5 dargestellten Vari­ante. Hier sind nur halb so viele Schubfedern 9 vorge­sehen. In der gezeichneten mittleren Fugenöffnung sind die Schubfedern 9 spannungslos. Dadurch daß die Schub­federn 9, anders als bei Fig. 4 nicht über frei beweg­liche Laschen 11 sondern mittels an der jeweils benach­barten Stütze 10 befestigter Gegenstücke 12 abgestützt sind, ergibt sich eine Steuerung aus der Mitte, d.h. die mittlere Fugenstellung bildet die neutrale Aus­gangslage, wobei entsprechende Steuerkräfte sowohl gegen eine Fugenvergrößerung als auch gegen eine Fugen­verkleinerung, bezogen auf diese Ausgangslage, aufge­baut werden, deren Federkennlinie entsprechend steiler verlaüft.In Fig. 4 the lower timing chain is shown at approximately the middle joint opening, ie the shear deformation of the shear springs 9 achieved here corresponds to approximately half the value of their maximum control force. The situation is somewhat different in the variant shown in FIG. 5. Only half as many thrust springs 9 are provided here. The shear springs 9 are de-energized in the drawn central joint opening. Because the thrust springs 9, unlike in FIG. 4, are not supported by freely movable tabs 11 but by means of counterparts 12 fastened to the adjacent support 10, control results from the center, ie the middle joint position forms the neutral starting position, whereby Corresponding control forces against both a joint enlargement and against a joint reduction, based on this starting position, are built up, the spring characteristic of which is vented correspondingly steeper.

Zu Fig. 1 sei noch erwähnt, daß als Varinate zu den Stützen 10 auch die Bügel 4 in Frage kommen, vorausge­setzt man bringt daran nach unten ragende Verlängerun­gen 13 an, welche strichliert eingezeichnet sind. Die Schubfedern wurden bei dieser Variante jeweils an den einander abgewandten Außenseiten der Verlängerungen 13 bzw. eines Bügels 4 befestigt sein.1 it should also be mentioned that the brackets 4 can also be used as varinates of the supports 10, provided that extensions 13 projecting downwards are attached, which are shown in broken lines. In this variant, the thrust springs were each attached to the outer sides of the extensions 13 or a bracket 4 facing away from one another.

Claims (5)

1. Vorrichtung zum Überbrücken von Dehnungsfugen in Fahrbahnen, Brücken od. dgl., mit parallel zu den Fugenrändern verlaufenden Lamellen (1), welche auf die Fuge (2) überbrückenden Querträgern (3) ver­schieblich abgestützt sind und deren Abstände bei Änderungen der Fugenbreite mittels elastomerer Schubfedern (9) gesteuert verstellbar sind, welche die Lamellen (1) miteinander und mit beiden Fugen­rändern (6,8) in Art einer geschlossenen Steuerket­te verbinden,
dadurch gekennzeichnet,
daß mindestens zwei derartige Steuerketten in mit Abstand übereinander liegenden horizontalen Ebenen vorgesehen sind und
daß die Schubfedern (9) wenigstens einer Steuerket­te direkt oder indirekt an biegesteifen Stützen (10) befestigt sind, welche von den Lamellen (1) nach unten ragen.1.Device for bridging expansion joints in roadways, bridges or the like, with slats (1) running parallel to the joint edges, which are displaceably supported on the cross members (3) bridging the joint (2) and the distances between them when the joint width changes elastomeric shear springs (9) can be adjusted in a controlled manner, which connect the slats (1) to one another and to both joint edges (6, 8) in the manner of a closed timing chain,
characterized,
that at least two such control chains are provided in horizontal planes lying one above the other and
that the thrust springs (9) of at least one timing chain are attached directly or indirectly to rigid supports (10) which project downward from the slats (1). 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Stützen (10) an der Unterseite der Lamellen (1) zwischen den Querträgern (3) befestigte, langge­streckte Profilteile sind.2. Device according to claim 1,
characterized,
that the supports (10) on the underside of the slats (1) between the cross beams (3) are attached, elongated profile parts. 3. Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß an jeder Stütze (10) zwei Steuerketten an den in Lamellenrichtung gegenüberliegenden Seiten an­greifen.3. Device according to claim 1 or 2,
characterized,
that on each support (10) two timing chains engage on the opposite sides in the slat direction. 4. Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß die Schubfedern (9) jeweils mit einem Ende an einer Stütze (10) oder einem Fugenrand (6,8) und mit dem anderen Ende an einer biegesteifen Lasche (11) befestigt sind, und daß jede Lasche (11) ent­weder die Schubfedern (9) eines Fugenrands (6,8) und einer Stütze (10) oder zweier Stützen (10) mit­einander verbindet.4. The device according to claim 3,
characterized,
that the thrust springs (9) are fastened at one end to a support (10) or a joint edge (6, 8) and at the other end to a rigid tab (11), and that each tab (11) either has the thrust springs ( 9) of a joint edge (6,8) and a support (10) or two supports (10). 5. Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß die Schubfedern (9) jeweils mit einem Ende an einer Stütze (10) oder einem Fugenrand (6,8) und mit dem anderen Ende an einem biegesteifen Gegen­stück (12) befestigt sind, und daß jedes Gegenstück (12) an einer Stütze (10) oder einem Fugenrand (6,8) befestigt ist.5. The device according to claim 3,
characterized,
that the thrust springs (9) are each attached at one end to a support (10) or a joint edge (6, 8) and at the other end to a rigid counterpart (12), and that each counterpart (12) is attached to a support ( 10) or a joint edge (6,8) is attached.
EP85115172A 1985-11-29 1985-11-29 Device for bridging expansion joints in roadways, bridges or the like Withdrawn EP0224601A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19858533644 DE8533644U1 (en) 1985-11-29 1985-11-29
EP85115172A EP0224601A1 (en) 1985-11-29 1985-11-29 Device for bridging expansion joints in roadways, bridges or the like
JP27890686A JPS62137304A (en) 1985-11-29 1986-11-25 Bridge apparatus of expansion joint in car road and bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85115172A EP0224601A1 (en) 1985-11-29 1985-11-29 Device for bridging expansion joints in roadways, bridges or the like

Publications (1)

Publication Number Publication Date
EP0224601A1 true EP0224601A1 (en) 1987-06-10

Family

ID=8193911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115172A Withdrawn EP0224601A1 (en) 1985-11-29 1985-11-29 Device for bridging expansion joints in roadways, bridges or the like

Country Status (3)

Country Link
EP (1) EP0224601A1 (en)
JP (1) JPS62137304A (en)
DE (1) DE8533644U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992002682A1 (en) * 1990-08-01 1992-02-20 Kober Ag Device for filling expansion joints in roadways, bridges or the like
DE19607593A1 (en) * 1996-02-29 1997-09-04 Hermann Wegener Railway cross over for expansion joints in bridges and other similar structures
CN109537464A (en) * 2018-12-11 2019-03-29 中交公局土木工程建筑研究院有限公司 A kind of reserved seam vertical masonry joint model template of assembled bent cap-pier stud
CN112064498A (en) * 2020-09-14 2020-12-11 蒋明敏 Comb-shaped bridge expansion joint plate structure and cleaning device thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB841568A (en) * 1956-08-10 1960-07-20 Vernon Ferdinand Bartlett Improvements in or relating to expansion joints for bridge and like roadways
US3854159A (en) * 1973-09-24 1974-12-17 Acme Highway Prod Composite expansion joint assembly
DE3333880A1 (en) * 1983-09-20 1985-04-04 Kober Ag, Glarus DEVICE FOR CONTROLLING THE BLADE SPACES ON A BRIDGE DEVICE FOR EXPANSION JOINTS IN BRIDGES OD. DGL.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB841568A (en) * 1956-08-10 1960-07-20 Vernon Ferdinand Bartlett Improvements in or relating to expansion joints for bridge and like roadways
US3854159A (en) * 1973-09-24 1974-12-17 Acme Highway Prod Composite expansion joint assembly
DE3333880A1 (en) * 1983-09-20 1985-04-04 Kober Ag, Glarus DEVICE FOR CONTROLLING THE BLADE SPACES ON A BRIDGE DEVICE FOR EXPANSION JOINTS IN BRIDGES OD. DGL.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992002682A1 (en) * 1990-08-01 1992-02-20 Kober Ag Device for filling expansion joints in roadways, bridges or the like
DE19607593A1 (en) * 1996-02-29 1997-09-04 Hermann Wegener Railway cross over for expansion joints in bridges and other similar structures
CN109537464A (en) * 2018-12-11 2019-03-29 中交公局土木工程建筑研究院有限公司 A kind of reserved seam vertical masonry joint model template of assembled bent cap-pier stud
CN109537464B (en) * 2018-12-11 2023-08-04 中交一公局土木工程建筑研究院有限公司 Assembled bent cap-pier stud reserved joint straight joint model template
CN112064498A (en) * 2020-09-14 2020-12-11 蒋明敏 Comb-shaped bridge expansion joint plate structure and cleaning device thereof
CN112064498B (en) * 2020-09-14 2021-04-13 蒋明敏 Comb-shaped bridge expansion joint plate structure and cleaning device thereof

Also Published As

Publication number Publication date
JPS62137304A (en) 1987-06-20
DE8533644U1 (en) 1987-04-02

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