EP0338124B1 - Dispositif de pontage de joint de tablier - Google Patents

Dispositif de pontage de joint de tablier Download PDF

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Publication number
EP0338124B1
EP0338124B1 EP88120052A EP88120052A EP0338124B1 EP 0338124 B1 EP0338124 B1 EP 0338124B1 EP 88120052 A EP88120052 A EP 88120052A EP 88120052 A EP88120052 A EP 88120052A EP 0338124 B1 EP0338124 B1 EP 0338124B1
Authority
EP
European Patent Office
Prior art keywords
bearing
cushion
bridge deck
girder
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88120052A
Other languages
German (de)
English (en)
Other versions
EP0338124A3 (en
EP0338124A2 (fr
Inventor
Hermann Wegener
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.)
Mageba GmbH
Original Assignee
Glacier GmbH Sollinger Huette GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Glacier GmbH Sollinger Huette GmbH filed Critical Glacier GmbH Sollinger Huette GmbH
Priority to AT88120052T priority Critical patent/ATE75272T1/de
Publication of EP0338124A2 publication Critical patent/EP0338124A2/fr
Publication of EP0338124A3 publication Critical patent/EP0338124A3/de
Application granted granted Critical
Publication of EP0338124B1 publication Critical patent/EP0338124B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • E01D19/062—Joints having intermediate beams

Definitions

  • the invention relates to a carriageway transition for expansion joints in bridges or similar structures, with support beams which extend over the entire joint width and on which slats extending transversely to the longitudinal axis of the traffic path are slidably supported, each slidably supported slat having a bearing foot clasping the associated support beam, which is a bears against the underside of the support bracket resilient tensioning cushion for the vertical preloading of the bearing foot relative to the support bracket and a bearing supporting the bearing foot on the top of the support bracket.
  • the number of support beams used can be significantly reduced if several slats can be supported on a support beam, but this means that the slats must then be displaceable and secured against tipping over.
  • the support of the slat base via a sliding element, ie a (rigid) slide bearing on the slat base could in principle enable a displaceable mounting with large permissible surface pressures.
  • the slat base must be sufficiently pre-tensioned against the support beam.
  • the slat is supported on the support beam by means of a bearing foot encompassing it, which has a (rigid) sliding element in the form of a slide plate for support on the upper side of the support beam and an elastic tensioning cushion lying against the underside of the support beam for vertical prestressing of the camp.
  • the capacity for tilting forces (also because of the relatively large ratio between the height of the slats and the support width in the slat base) is very low, which is why any tilting forces that occur must be absorbed by the vertically arranged scissors control mechanism for the slats directly next to the support beam area.
  • a defined derivation of the static forces due to the elastic clamping cushion used is also not possible here.
  • US Pat. No. 4,132,491 describes a roadway transition in which the bearing base of the lamella is supported on the support beam both above and below by means of an elastic plate.
  • the forces from traffic loads are transmitted via the central lamella, an upper frame plate and another plate to the support beam and from there via support bearings in the edge beam.
  • edge pressure on the elastic plates again occurs as a result of pressure superimpositions. Again, due to the elastic behavior of the plates, it is no longer possible to provide a precise static design for the entire bearing.
  • the object of the invention is to propose a roadway crossing in which, despite the use of an elastic tensioning cushion in the displaceable mounting of the lamella on the support beam, a clearly assignable derivation of occurring static forces, in particular also when tilting moments occur, can be achieved and at the same time the recording significantly greater canting forces than is possible with previously customary elastic bearings.
  • the upper bearing is designed as a rigid slide bearing and on both sides of the elastic tensioning cushion - as seen in the longitudinal direction of the support beam - a likewise rigid sliding element, i.e. a non-elastic slide bearing is accommodated in the bearing base, the support surface of which only comes into contact with the facing support surface of the support beam when the lamella is loaded horizontally or is pressed there.
  • a separation of the functions of "resilient support” on the one hand and “tilt-proof storage” on the other hand is achieved in a surprisingly simple manner within the mounting of the slat base, in that both functions are performed by separate elements.
  • the clamping cushion enables the necessary preloading of the bearing to be applied without the clamping cushion being stressed by it when tilting moments occur. Because the rigid slide rails (sliding elements) attached on both sides of the clamping cushion form the tilt-proof support of the slat foot against the underside of the support beam, without in turn having to contribute to achieving the desired bearing preload.
  • non-elastic sliding elements which are attached to the side of the tensioning cushion and are preferably designed in the form of "sliding rails", also allow a precisely defined derivation of the static loads, which is particularly true when tilting moments occur.
  • the static verification of the tilt-proof bearing can therefore be carried out unambiguously, which was not possible in the case of previously used bearings preloaded by elastic clamping cushions.
  • the sliding elements are preferably each arranged with the formation of a gap to form an elastic clamping cushion.
  • the gap between the pretensioning cushion and the sliding elements arranged laterally from it allows compression of the elastic tensioning cushion, which is completely unaffected by the sliding elements, to build up the desired pretensioning force and prevents it from undesirably interacting with the prestressed elastic material on the inner edge of each sliding element facing the tensioning cushion Leader cushion can come.
  • the lateral spacing of the sliding elements from the tensioning pad is preferably 2.5 to 10 mm, a sufficient gap width being achieved at the loads and installation dimensions that usually occur, in order to allow deformation of the tensioning pad unaffected by the side sliding elements, but nevertheless with the bearing length to be able to meet the usually given narrow limits for the warehouse expansion.
  • the sliding elements attached to the side of the tensioning cushion which in turn consist of a non-elastic material and are designed in the form of sliding runners or sliding rails, can be made of any suitable material, but especially the one that occurs withstands high pressures under load.
  • Highly pressure-resistant plastic preferably a polyamide, in particular the polyamide PA 6.6 (cf. DIN 7728) is advantageously used for this.
  • suitable reinforced elastomer bearings such as those e.g. are known in the field of road crossings and bridge bearings, are used, advantageously being coated on their upper side facing the support beam with a suitable sliding pad, preferably made of polytetrafluoroethylene or a suitable polyamide, in order to keep the frictional forces as low as possible when a sliding movement occurs .
  • the tensioning cushion and the lateral sliding elements are very particularly preferably received in a lower, suitably shaped end plate screwed onto the bearing foot, the side sliding elements in turn being screwed onto this end plate.
  • a preloading device is also attached to the end plate, which allows the strength of the preload of the tensioning cushion to be readjusted or changed from the outside.
  • the gaps formed on both sides of the elastic clamping cushion are particularly preferably selected to be of the same size to the adjacent sliding element, i.e. the clamping cushion is placed exactly in the middle between the sliding elements in order to achieve a correspondingly symmetrical load absorption in the lower half of the bearing when tipping moments of the same magnitude but acting in different directions occur.
  • the roadway transition 1 shown in the figures extends between two joint edges of a joint between two structural parts, e.g. in the case of a bridge construction, the top of the superstructure being provided on both sides of the joint with a suitable seal (not shown in FIG. 1), above which a road surface 2, e.g. Concrete is provided, which forms a surface 3.
  • a road surface 2 e.g. Concrete is provided, which forms a surface 3.
  • the structure of the carriageway transition 1 has lamellae 4 running inside the expansion joint in the longitudinal direction of the joint and parallel to the joint edges, which are connected to one another via suitable elastic sealing bodies 5, each sealing body 5 bridging the gap between the lamellae 4 in a watertight manner.
  • the edge lamellae are also positively connected to steel profiles 12 attached to the joint edges via such elastic sealing bodies 5.
  • Each slat consists, as shown in FIGS. 1 and 4, of a slat head 4 ', which has suitable profile receptacles for holding the sealing profiles 5 on its two edge sides.
  • the lamellar heads 4 ' go into a lamellar body 6 (Fig. 1 or 4), which is rectangular in cross section in the illustration according to FIG. 4 and square in cross section in the illustration according to FIG. 1.
  • a slat base 7 is formed for each slat 4, within which the slidable mounting of the slat on the support body 9 is accommodated, which will be discussed in more detail below in connection with the description of FIGS. 2, 4 and 5 .
  • the slats 4 are supported over their entire length at several bearing points of the carriageway crossing 1, as can be seen from the plan view shown in FIG. 3 of the carriageway crossing from FIG. 1 in the region of a bearing point thereof.
  • the individual lamellae 4 are cut in the region of this bearing point, which is shown in FIG. 3, namely along the plane CC from FIG. 1.
  • the section plane BB shown in FIG. 3 in turn shows the sectional position of the section from FIG It should also be pointed out that in the illustration according to FIG. 3 not only the road surface 2, but also the elastic sealing bodies 5 between the slats 4 are omitted in the interest of better clarity.
  • the feet 7 of adjacent slats 4.1, 4.2, 4.3, 4.4 and 4.5 are alternately supported on another support bracket 9 and 9 '.
  • Fig. 2 shows a section through a slat foot 7 along line AA in Fig. 1, which also represents an equal section through the lamella from Fig. 4, which differs from the individual lamella from Fig. 1 essentially only by the non-square cross-section of the slat body 6.
  • the lamella foot 7 of the lamella 4 from FIG. 1 or from FIG. 4 completely encompasses or “clasps” the support beam 9, which in turn has a rectangular cross section.
  • a rigid (non-elastic) sliding element 8 is arranged inside the slat foot 7 above the support beam 9, which consists of a suitable pressure-resistant material, preferably a PTFE or a polyamide plate, and over which the slat body 6 or Slat base 7 slidably supports on the top of the support beam 9.
  • the lower part of the slat foot 7 consists of a screwed (screw 20) end plate 19, which is provided in its central region with a transverse to the longitudinal direction of the support beam 9, in which a elastic clamping cushion 16 is attached in the form of a suitable reinforced elastomeric bearing.
  • This elastic tensioning pad 16 is coated on its upper side with a sliding layer 15, preferably in the form of a thin PTFE plate, which bears against the underside of the support beam 9.
  • a non-elastic sliding element 17 or 18 is attached in the form of a slide rail on each side of the support cushion 16, the slide rails 17, 18 being fastened to the end cover 19 of the slat foot 7 by means of suitable countersunk screws (the position 2, 4 and 5, for the sake of clarity, these screws are only indicated by dash-dotted lines).
  • the sliding elements 17, 18 consist of a suitable high-pressure-resistant material, for which a high-strength polyamide plastic is particularly suitable of the type PA 6.6 (see DIN 7728) or the material known as POM.
  • a gap 21 of the same gap width is formed between each sliding element 17, 18 and the tensioning pad 16, the gap width being at least 2.5 mm and at most 10 mm, and by means of which it is ensured that the lateral curvature of the tensioning pad 16 caused by the prestressing can take place unhindered by the lateral sliding elements 17, 18.
  • Each slat foot is mounted in such a way that in the unloaded state of the slat between the surfaces of the sliding elements 17, 18, which face the support beam 9, and the corresponding counter surface on the underside of the support beam 9, a (very small) installation gap is kept free, so that when the lamella is not loaded, the sliding elements 17, 18 with their support surfaces just do not yet bear against the underside of the support beam 9. Only when a horizontal load occurs, which leads to a tilting moment on the slat in question, is the supporting or supporting surface of the corresponding sliding element 17 or 18 brought into abutment against the underside of the supporting beam 9, while eliminating this installation gap, and can the corresponding vertical forces then occur initiate in the support beam 9.
  • the rigid sliding element 8, by means of which the lamellar foot 7 is supported on the upper side of the support beam 9, extends essentially over the entire extent of the lamellar foot 7, the rigid sliding element 8, which is designed in the form of a sliding plate, also upward on the lamellar foot via suitable countersunk screws 7 is fixed (the position of these screw connections is again indicated in FIG. 4 only by dash-dotted lines).
  • a device (not shown in the figures) can also be attached to the end cover 19, with which it is possible to readjust or change the pretensioning of the tensioning pad 16 from the outside, for example in the form of a thin one lying on the underside of the elastic tensioning pad 16 Pressure plate facing away from the tension pad 16 the lower side can be adjusted in its height by suitable means for adjusting the pretension of the clamping cushion 16.
  • the roadway crossing 1 shown in the figures has a control for the slats, which e.g. can be formed by a correspondingly rigid design of the sealing body 5 arranged between the individual lamellae 4.
  • An independent mechanical slat control could also be used (not shown in the figures), which would then have to be arranged and designed in the usual and known form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (9)

  1. Dispositif de pontage (1) pour les joints de dilatation de ponts ou similaires, comprenant des poutres de soutien (9) s'étendant sur toute la largeur du joint, sur lesquelles s'appuient transversalement à l'axe longitudinal de la circulation et de façon mobile en coulissement, des lamelles (4), chaque lamelle (4) en appui de façon coulissante comportant une embase (7) entourant la poutre de soutien (9) correspondante, qui supporte, contre la face inférieure de la poutre de soutien (9), un coussinet de serrage élastique (16) pour la précontrainte verticale de l'embase (7) par rapport à la poutre de soutien (9), ainsi qu'un palier d'appui (8) de l'embase (7) qui s'appuie sur la face supérieure de la poutre de soutien (9), caractérisé en ce que le palier supérieur (8) est conçu comme un coussinet de glissement rigide et - selon la direction longitudinale de la poutre de soutien - en ce qu'il est disposé dans l'embase (7), à l'avant et à l'arrière du coussinet de serrage élastique (16), un élément de glissement (17; 18) également rigide, dont la surface d'appui prend appui contre la poutre de soutien (9) uniquement lors d'une sollicitation horizontale de la lamelle (4).
  2. Dispositif de pontage selon la revendication 1, caractérisé en ce que les éléments de glissement (17; 18) sont prévus respectivement selon la configuration d'une fente (21) adjacente au coussinet de serrage élastique (16), tandis que la fente (21) présente avantageusement une largeur de 2,5 mm à 10 mm.
  3. Dispositif de pontage selon la revendication 1 ou 2, caractérisé en ce que les éléments de glissement (17; 18) sont composés de matière plastique résistant aux hautes pressions, avantageusement en polyamide résistant aux hautes pressions.
  4. Dispositif de pontage selon l'une des revendications 1 à 3, caractérisé en ce que le coussinet de serrage élastique (16) est revêtu d'une couche de glissement (15).
  5. Dispositif de pontage selon la revendication 4, caractérisé en ce que la couche de glissement se compose de polytétrafluoréthylène.
  6. Dispositif de pontage selon l'une des revendications 1 à 5, caractérisé en ce que le coussinet de serrage (16) et les éléments de glissement latéraux (17; 18) sont logés dans une plaque d'obturation (19) inférieure, vissée dans l'embase (7).
  7. Dispositif de pontage selon la revendication 6, caractérisé en ce que les éléments de glissement latéraux (17; 18) sont vissés sur la plaque d'obturation (19).
  8. Dispositif de pontage selon l'une des revendications 2 à 7, caractérisé en ce que les fentes (21) formées des deux côtés du coussinet de serrage élastique (16) présentent, pour chacun des éléments de glissement latéraux (17; 18) une largeur essentiellement de la même dimension.
  9. Dispositif de pontage de joint de tablier selon l'une des revendications 1 à 8, caractérisé en ce que le coussinet de serrage élastique (16) est un palier en élastomère armé.
EP88120052A 1988-04-18 1988-12-01 Dispositif de pontage de joint de tablier Expired - Lifetime EP0338124B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120052T ATE75272T1 (de) 1988-04-18 1988-12-01 Fahrbahnuebergang.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812878 1988-04-18
DE3812878A DE3812878A1 (de) 1988-04-18 1988-04-18 Fahrbahnuebergang

Publications (3)

Publication Number Publication Date
EP0338124A2 EP0338124A2 (fr) 1989-10-25
EP0338124A3 EP0338124A3 (en) 1990-04-11
EP0338124B1 true EP0338124B1 (fr) 1992-04-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120052A Expired - Lifetime EP0338124B1 (fr) 1988-04-18 1988-12-01 Dispositif de pontage de joint de tablier

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EP (1) EP0338124B1 (fr)
AT (1) ATE75272T1 (fr)
DE (2) DE3812878A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239878A1 (de) * 1992-11-27 1994-06-01 Butzbacher Weichenbau Gmbh Unterstützung für eine Schiene
DE10222690A1 (de) * 2002-04-17 2003-11-06 Maurer Friedrich Soehne Überbrückungsvorrichtung für Fugenspalte
US7489045B1 (en) * 2005-05-11 2009-02-10 Watson Borman Acme Corporation Energy generating expansion joint
ITMI20071434A1 (it) † 2007-07-17 2009-01-18 Cvi Engineering S R L Cuscinetto a strisciamento per l'ingegneria strutturale e materiali per lo stesso
MX2012006464A (es) 2009-12-10 2012-07-03 Constr Res & Tech Gmbh Sistema de junta de expansion de control de equidistancia de zona.
US8919065B2 (en) 2010-05-17 2014-12-30 Construction Research & Technology Gmbh Expansion joint system using flexible moment connection and friction springs
DE102020201076B3 (de) * 2020-01-29 2021-05-20 Maurer Engineering Gmbh Übergangskonstruktion zur Überbrückung einer Bauwerksfuge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH567629A5 (fr) * 1972-01-17 1975-10-15 Recrido Sa
US4058867A (en) * 1977-01-21 1977-11-22 Acme Highway Products Corporation Uplift restraint for composite expansion joint assembly
US4132491A (en) * 1978-04-27 1979-01-02 Fox Industries, Inc. Restraint assembly for bridge roadway expansion joints
DE3518944C1 (de) * 1985-05-15 1986-07-10 Kober Ag, Glarus Vorrichtung zum Überbrücken von Dehnungsfugen in Verkehrswegen

Also Published As

Publication number Publication date
DE3812878C2 (fr) 1991-06-13
ATE75272T1 (de) 1992-05-15
EP0338124A3 (en) 1990-04-11
EP0338124A2 (fr) 1989-10-25
DE3870443D1 (de) 1992-05-27
DE3812878A1 (de) 1989-11-02

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