WO1998038385A2

WO1998038385A2 - Device for spanning an expansion joint of a bridge

Info

Publication number: WO1998038385A2
Application number: PCT/AT1998/000041
Authority: WO
Inventors: Georg Wolff
Original assignee: Reisner & Wolff Engineering Gesellschaft Mbh & Co. Kg
Priority date: 1997-02-27
Filing date: 1998-02-26
Publication date: 1998-09-03
Also published as: CA2282660A1; BR9807637A; ATA32997A; EP0964959B1; CN1251150A; HU223212B1; HUP0003432A2; WO1998038385A3; SK113899A3; PL335818A1; EP0964959A2; HUP0003432A3; AT412291B; AU6080598A; DE59804577D1

Abstract

The invention relates to an elastomer support (10) for a support device (9) for cantilevered segments of an expansion joint in a roadway, especially of bridges with an elastomer element, whereby several elastomer layers (18), at least partially separated by reinforcing elements (17) are positioned in the direction of the main load of the elastomer support (10) and have a thickness (23) of only between 1 % and 20 % of the width dimension perpendicular thereto, preferably between 2mm and 10mm.

Description

Device for bridging an expansion joint of a bridge

The invention relates to an elastomer bearing and a bearing arrangement for lamellae for bridging an expansion joint between two components, in particular the carriageway on bridges, as described in the preamble of claims 1 and 18.

In order to be able to compensate for strains between two different structural parts, for example the abutment and the supporting structure of a bridge, these expansion joints are bridged by inserted slats, in particular intermediate or middle slats. The number of slats running parallel to each other in the direction of the expansion joint or running parallel to the supporting structure is determined depending on the permissible range of changes in the gap width and the load capacity of the individual slats. The maximum permissible gap width is usually defined using the information in the tender or corresponding technical standards. These lamellae not only remove the load on the abutment or the supporting structure caused by driving, but also ensure that the lamellae are evenly distributed over the expansion joint to bridge the gap. For this purpose, uniform distances between the individual slats must be maintained in the different expansion states of the building parts.

According to CH 651 339 A, resilient intermediate pieces are provided between the individual slats, which are arranged either directly between the individual slats or on cross members rigidly connected to the individual slats.

Furthermore, it is also known, regardless of these missing spacers for load transfer of the loads acting on the lamellae, to arrange them on truss-like rails, which take over the load transfer to the abutment or the supporting structure and, when adjusting due to the change in the joint width, the uniform distribution allow the slats across the width of the expansion joint.

Finally, it is also known from AT 397 674 B by the same applicant that the elastomeric supports of the lamellae consist of individual block bearings distributed over the length of the intermediate profile, which are supported on the joint edge or on the adjacent intermediate profile. Due to the fact that several such block bearings are distributed over the length of the lamellae, the loads caused by the stress and the tensile loads are shared Changes in the distance between the individual middle or intermediate lamellae evenly on a plurality of such block bearings. Due to the elastic support of these slats, both the load transfer function and the maintenance of an equal distance between the individual slats can now be achieved by elastic block bearings, which are self-adapting and require few mechanical parts. However, the elastomer bearings or bearing arrangements designed in this way could not satisfactorily solve all of the applications that occur in practice.

The present invention has for its object to provide an elastomeric bearing and a bearing arrangement in which sufficient can be found with a few universal components.

This object is achieved in the case of an elastomer bearing by the features in claim 1. It is advantageous in this bearing that the elasticity can be easily adapted to the loads occurring in different spatial directions by the design of the elastomer bearing and still a high load transfer can be ensured via these elastomer bearings, so that even with higher loads with a small number of elastomer bearings for the support of the middle and / or intermediate lamellae can be found.

A further advantageous embodiment is described in claim 2, whereby the elasticity or the deformation property of the elastomer bearing in the direction transverse to the longitudinal axis or the main loading direction is lower than in the main loading direction, although a larger number of the reinforcing inserts can be arranged and nevertheless one due to the smaller thickness of the reinforcement inserts sufficient transverse adjustability or transverse deformability of the elastomer bearing can be achieved for the positioning of the individual slats.

In the embodiment variant according to claim 3 it is advantageously achieved that the force transmission takes place over a relatively large surface, so that even high loads can be transmitted in the individual connection areas without overstressing or shearing. In addition, an adaptation to the respective connection technology between the elastomer bearing and the lamellae or the crossbeams or intermediate beams can be achieved.

Due to the development according to claim 4, the multi-layer sandwich component requires Consisting of the elastomer layers and the reinforcement inserts can not be weakened by receptacles for fasteners and by providing adjusting means, simple deformation of the elastomer bearings can also take place during assembly to adapt to the respective state of expansion of the structure or the supports for bridges, so that the assembly of the Elastomer bearings and their replacement is possible in any operating condition.

A corrosion-protected design of the elastomer bearing is achieved by the configuration according to claim 5.

The external arrangement of fasteners outside the circumference of the elastomer bearing is made possible by the advantageous embodiment variant according to claim 6, wherein the corresponding design of the transition areas also allows high transverse loads, ie loads occurring perpendicular to the main direction of load, to be absorbed.

A long service life and high strength of the elastomer bearing is made possible by the further configuration according to claim 7, the adhesion between the reinforcement inserts and the elastomer layers being able to be considerably improved by the choice of the appropriate materials.

A uniform distribution of loads acting on the elastomer bearing is achieved by an embodiment variant according to claim 8.

The suspension or damping behavior and the restoring force built up during a deflection can be set universally by the configuration according to claim 9.

The advantageous further development according to claim 10 creates a permanent and, for the present application, advantageous damping properties with a long service life, which also withstand environmental influences and bring additional advantages in the harsh conditions, especially in the area of expansion joints in bridges of highways.

Both in terms of the load-bearing capacity and the desired damping properties, an embodiment variant according to claim 1 1 is suitable for use with an elastomer bearing in the area of bridge structures. The embodiments according to claims 12 and / or 13 are suitable for a long-lasting and preferably also corrosion-resistant solution for the articulation of the elastomer bearing or connection with other supporting parts.

A favorable force distribution and force introduction into the elastomer element is achieved by the further embodiment according to claim 14.

The configuration according to claim 15 opens up the possibility of such an elastomer bearing using connection methods customary in construction, namely that

Welding to connect with other parts of the structure, without adversely affecting the elasticity of the elastomer layer required for damping and resetting deflection movements.

Multi-point fastening is made possible in a simpler and more reliable manner by the configuration according to claim 16.

Via the additional bores in the connecting or stop plates, as described in claim 17, the elastomer bearings can be adjusted during assembly to different positions of the slats or to the structural parts spaced apart from one another via the expansion joint.

The invention also includes a bearing arrangement as described in the preamble of claim 18.

The present object of the invention can in particular also be solved independently by the features according to claim 18. Through the use of these bearing arrangements, both the load transfer function and the automatic centering of the lamella, which moves with the expansion joint, can be achieved.

As a result, it is possible to find sufficiency with a smaller number of components and, by using a larger number of the same components, the storage is favored or the constructional effort for the manufacture of such bearing arrangements is less. Above all, it is also possible with such a configuration of the bearing arrangement to adapt existing expansion joints by inserting further bearing arrangements in a simple manner to higher loads or to changed load cases. A favorable load distribution and a favorable automatic readjustment of the slats on changing expansion joints is achieved by the features of claim 19.

A uniform load transfer of the loads acting on the lamellas or on the elastomer bearings is achieved by a design according to claims 20 and 21.

An advantageous introduction of force is achieved in the further configuration of the elastomer bearing according to claim 22.

A uniform loading and even load transfer even when the position of the connecting plates is shifted to different spatial positions relative to one another is achieved by the further embodiment according to claim 23.

With an embodiment according to claim 24, in addition to a fixed or firm fit of the wall support profile in the respective structural part, a releasable attachment of the wall support profile to the structural part can also be achieved.

A uniform reduction or expansion of the gap width or the individual lamella spacings is achieved by the embodiment according to claim 25.

According to the design variants according to claims 26 to 29, an optimal storage of the slats and an optimal load transfer is achieved. It is advantageous in such an arrangement of the elastomer bearings that the fatigue strength can be increased significantly.

A secure support of the support element on the wall support profile and thus an optimal absorption of the elastomer bearings is achieved by the embodiment variant according to claim 30.

An embodiment according to claim 31 ensures a tight fit of the wall support profile in the building part.

A uniform load transfer or load absorption of the central lamellae or intermediate lamellae is achieved by the embodiment variant according to claim 32, which also enables an evenly distributed load application of the lamellae. light becomes.

An ideal embodiment of the support element receiving the elastomer bearing is described in claim 33.

The design variants according to claims 34 to 36 enable an optimal connection of the elastomer bearing with the central lamella or the intermediate lamellae and also achieve a notch-free fastening of the elastomer bearing on the lower area of the lamella.

Through the developments according to claims 37 and 38, a secure load transfer of the vertical loads in the elastomeric bearings is achieved despite a horizontal deformation thereof.

Due to the design variants according to claims 39 to 41, the advantageous arrangement of the elastomeric bearings is possible both in the vertical direction and in the lying or horizontal direction.

The advantageous and inventive support of the central lamella on the intermediate lamellae arranged next to it is achieved by the configuration according to claim 42.

A good connection of the individual elastomer bearings over the entire width of the bridging device and thus an advantageous, uniform load transfer over the entire gap width enables the embodiment variant according to claims 43 and 44.

The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawings.

Show it:

Figure 1 shows the inventive device for bridging an expansion joint, which is arranged in a position angular to the longitudinal direction of the road, in a schematic, simplified representation.

Fig. 2 shows an elastomer bearing according to the invention with an abutment plate formed thereon or connecting plate, in side view, cut;

3 shows the elastomer bearing according to the invention in a bottom view, according to arrow III in FIG. 2;

Figure 4 shows the device according to the invention for bridging an expansion joint between the structure and the abutment of a bridge, in side view, cut.

5 shows the bridging device according to the invention according to FIG. 4, in a top view, according to arrow V in FIG. 4;

6 shows a holding structure according to the invention for an elastomer bearing fastened to a central and / or intermediate plate, cut, according to lines VI-VI in FIG. 5;

7 shows a further embodiment variant of the device for bridging an expansion joint, in a top view and a simplified, schematic illustration;

8 shows the device for bridging an expansion joint according to FIG. 7, sectioned, according to lines VIII-VIII in FIG. 7;

9 shows the device for bridging an expansion joint according to FIG. 8 with a reduced gap width;

10 shows the bridging device according to FIG. 7, cut along the lines X-X in FIG. 7;

11 shows the device for bridging an expansion joint according to FIG. 10 with a reduced gap width;

FIG. 12 shows a partial area of the bridging device according to FIG. 7, sectioned, according to lines XII-XII in FIG. 7;

13 shows a further embodiment of the device for bridging an expansion joint with elastomer bearings lying in the horizontal direction, in plan view, in section and in a schematic, simplified illustration; FIG. 14 shows the device for bridging an expansion joint, sectioned, along lines XIV-XIV in FIG. 13;

15 shows a further embodiment of the device for bridging an expansion joint according to FIG. 8, in a side view, in section, in a schematically simplified illustration.

To begin with, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. Furthermore, individual features from the different exemplary embodiments shown can represent independent solutions according to the invention.

1 shows a bridging device 1 for bridging an expansion joint 2 in a carriageway 3 between an abutment 4 and a supporting structure 5 of a bridge 6.

According to FIG. 1, this bridging device 1 consists of edge slats 7 arranged on the supporting structure 5 of the bridge 6 or on the abutment 4 of the carriageway 3 and a central and / or intermediate slat 8 arranged between these edge slats 7. This central and / or intermediate slat 8 is supported via bearing arrangements 9 or elastomer bearings 10, as indicated schematically by dashed lines in FIG. 1, which are connected via the edge lamellae 7 to the abutment 4 of the carriageway 3 or the supporting structure 5 of the bridge 6. The exact design of the bearing arrangements 9 and the elastomer bearing 10 is discussed in more detail in the description of the following figures.

In some cases - as shown in FIG. 1 - it is not possible to arrange the expansion joint 2 normally, ie at 90 ° to the roadway 3. If the lamellae run obliquely to the longitudinal direction of the road, when a vehicle crosses the expansion joint 2, not only a force in the vertical direction but also a force in the horizontal direction or in the longitudinal direction of the central and / or intermediate lamella 8 is applied to the bearing arrangements 9 exercised. In this case, the bearing arrangement 9 has, in addition to a receptacle for the vertical, also running in the longitudinal direction of the lamella To absorb loads. Such an angular arrangement of the expansion joint 2 or of the central and / or intermediate lamella 8 is possible, for example — as shown in FIG. 1 — in the case of a roadway 3 leading out of a mountain 11 or out of a tunnel 12 or running in a curved manner, as a result of which the arrangement of the expansion joint 2 must be adapted to the natural environment.

2 and 3, the formation of an elastomer bearing 10 and a bearing arrangement 9 is described.

The elastomer bearing 10 consists of a contact plate 13, an elastomer bearing body 14 and a connecting plate 15. In the elastomer bearing body 14, several elastomer layers 18, at least partially separated from one another by reinforcement elements 17, are arranged in the main loading direction - arrow 16 - of the elastomer bearing 10, the thickness 19 of which is only between 1 % and 20%, preferably between 2 mm and 10 mm of a width 20 running perpendicular thereto. The width 20 of the reinforcement elements 17 is less than a width 21 of the elastomer bearing body 14 in order to completely enclose the reinforcement elements 17 by the elastomer bearing body 14 or to embed them on all sides. The reinforcement elements 17 divide the elastomer bearing body 14 into a plurality of elastomer layers 18, a height 22 of the reinforcement elements 17 being less than a thickness 23 of the elastomer layers 18 of the elastomer bearing body 14. The elastomer layers 18 between the reinforcement elements 17 are very flat compared to their thickness 23 designed to achieve high vertical and low horizontal stiffness. In this way, high vertical forces acting on the elastomer bearing 10 can be absorbed with little deformation.

Elastomers, natural rubbers, elastomeric polychloroprene or ethylene-propylene terpolymers are preferably used as the material for an elastomer bearing body 14. Such terpolymers have good chemical resistance and furthermore have good weather, ozone and aging resistance. Of the elastomers, natural rubber is preferably used, since this natural rubber maintains its good elastic properties even at low temperatures, as can occur in normal load situations at road crossings. As a result, very good load transfer in the case of horizontal loads is also advantageously achieved. It is also advantageous that the Shore hardness of the elastomer, in particular the elastomer layers 18 between the reinforcement elements 17, is between 50 Shore A and 90 Shore A, but preferably between 65 Shore A and 70 Shore A is. With this design, higher vertical forces can be absorbed compared to the spring elements previously used.

The material of the elastomer bearing body 14 according to the invention makes it possible to vulcanize the contact plate 13 onto the elastomer bearing body 14 or the connecting plate 15 into the elastomer bearing body, thereby advantageously securing the system or connecting plate 13, 15, since no further aids for fastening the same on the elastomer bearing body 14 are necessary. Furthermore, by the choice of the material for the elastomer bearing body 14 or by a width 21 and a thickness 23 of the elastomer layers 18, it is achieved that the elastomer layers 18 have a higher stiffness in the direction of a longitudinal central axis 24 than in the direction running perpendicular thereto.

As already briefly described above, reinforcement elements 17 are embedded in or encased by the elastomer bearing body 14, as a result of which a higher one

Stiffness of the elastomer bearing 10 can be achieved under load in the direction of the longitudinal central axis 24. These reinforcement elements 17 can be made of textiles such as e.g. Wovens, knitted fabrics, nets, grids, nonwovens or any other fibrous or filamentary materials made of metal, ceramic, natural or plastics or in any mixture of these materials. These reinforcement elements 17 have a width 20 that is smaller by a double amount 25 than a width 21 of the elastomer bearing body 14, as a result of which the reinforcement elements 17 are completely enclosed by the material of the elastomer bearing body 14. If metallic materials are used for the reinforcement elements 17, enclosing the reinforcement elements 17 is of particular advantage, since this prevents the reinforcement elements 17 from coming into contact with ambient fluids and thus prevents corrosion of the reinforcement elements 17. Furthermore, the reinforcement elements 17 are arranged concentrically or centered with respect to the longitudinal central axis 24 of the elastomer bearing body 14.

The inventive design of the elastomer bearing 10 or the elastomer bearing body 14 results in the surprising advantage that only moderate deformation paths or only a slight spatial compression occur at high vertical loads occurring along the longitudinal central axis 24 of the elastomer bearing 10, so that with low construction heights, sufficiency can be found. Furthermore, however, a sufficiently high elasticity is maintained transversely to the longitudinal central axis 24, as a result of which there is also sufficient load transfer in which the slats are received. level is guaranteed. The cross-sectional dimension of the elastomer bearing body 14 is such that in the event of a load occurring transversely to the longitudinal central axis 24 or in the event of a lateral deflection of the elastomer bearing body 14, the means and / or intermediate plate 8 are adequately supported with respect to the occurring vertical loads.

Of course, it is possible to mount the elastomer bearing 10 or the elastomer bearing body 14 in any cross-section, e.g. to be rectangular, square or round, but a round configuration is advantageous, as a result of which the same deformation resistance occurs regardless of the direction of movement in the case of horizontal deformation.

The elastomer bearing body 14 is connected at the end faces running parallel to the reinforcement elements 17 each with a contact plate 13 or connecting plate 15 which is formed in or on them and which is made of metal or plastic or composite material. The contact plate 13 is now fastened, preferably vulcanized, to an end face 26 of the elastomer bearing body 14. This contact plate 13 has a length 27 and a width 28, the length 27 of the contact plate 13 corresponding to at least one structural height of the elastomer bearing body 14 running perpendicular to the reinforcement elements 17 between the contact or connecting plate 13, 15. Since the contact plate 13 is designed to project over the cross section of the elastomer bearing body 14, the transition area between the elastomer bearing body 14 and the contact plate 13 can be provided with a rounding 29 which increases the cross section of the elastomer bearing body 14 and which reduces the stresses occurring in the transition area under stress, and thus the risk of detachment of the elastomer bearing body 14 is reduced by the vibration stresses occurring during operation.

On the end area of the elastomer bearing body 14 facing away from the contact plate 13, the connecting plate 15 is now introduced or vulcanized into the elastomer bearing body 14 such that the connecting plate 15 is completely embedded in the material of the elastomer bearing body 14, that is to say that an underside 30 of the connecting plate 15 has a End surface 31 of the elastomer bearing body 14 closes flat.

This contact plate 13 or connecting plate 15, which is molded or molded onto one of the two end faces 26, 31 of the elastomer bearing body 14, which runs parallel to the reinforcement elements 17, is made of metal or plastic or a composite bundle material. Furthermore, bores 32 to 36 for receiving fastening and / or adjusting means 37, in particular screws 38, are formed in the contact plate 13 or in the connecting plate 15, wherein these bores 32 to 36 can be designed as through bores and of course also have a thread 39 can.

The number of bores in the contact plate 13 or the connecting plate 15, which are aligned parallel to the longitudinal central axis 24, is preferably two, since this ensures that the elastomer bearing 10 is secured against rotation, and thus an automatic, unwanted loosening of the vibration stress occurring during operation Screws 38 is prevented.

A screwing of the contact plate 13 or connecting plate 15 is preferably carried out with countersunk screws with a conical head, since in the case of the horizontal vibration stresses occurring during operation as a result of rolling over and braking effects by vehicles, the smallest movements in the contact area between the screw head and the bores 32 to 36 a reduction in the coefficient of friction is inevitable, and so an increase or improvement of the contact takes place. With other screw forms, in which the contact surface between the screw head and the bores 32 to 36 in the connecting plate 15 or contact plate 13 is in a horizontal plane, such movements can lead to an unintentional loosening of the screw connection due to the inevitable reduction in the coefficient of friction.

Furthermore, the dimensions of the contact plate 13 or a thickness 40 of the contact plate 13 are designed such that if the contact plate 13 is welded to a further component, sufficient heat dissipation via the contact plate 13 is made possible without the material of the elastomer bearing body 14 being overheated is damaged.

4 to 6, the bridging device 1 for an expansion joint 2 is shown in detail.

As shown here, edge slats 7 are designed as wall support profiles 41, which are held by anchoring elements 42, which are cast into structural parts 43 or into the supporting structure 5 of the bridge 6 and into the abutment 4. The middle and / or intermediate lamella 8 is now centered between these wall support profiles 41. ordered, which is supported via an elastomer bearing 10, which was described in more detail in the previous figures, on a holding structure 44, which is designed as a support element 45. Such a support element 45 is designed as a component 46 with a U-shaped cross section that receives the connecting plate 15 of the elastomer bearing 10.

The component 46 is welded to its side faces 47 facing the wall support profiles 41 on the wall support profiles 41, so as to ensure secure mounting of the component 46 on the wall support profile 41 and secure support of the central and / or intermediate lamella 8 via the elastomer bearing 10. With this combination, a bearing arrangement 48 for central and / or intermediate lamellae 8 for bridging an expansion joint 2 between the supporting structure 5 and the abutment 4 of a bridge 6 with at least one intermediate and / or central lamella 8, which is achieved via elastomeric bearings 10, is now advantageously achieved or support elements 45 are supported. This support is made possible by the fact that the central and / or intermediate plate 8 is connected in a fixed position via the elastomer bearing 10, which is connected to the central and / or intermediate plate 8 or to the support element 45, which is welded to the wall support profile 41. This is achieved in that the contact plate 13 with the central and / or intermediate plate 8 or the connecting plate 15 with the support element 45 is fastened by means of fastening and / or adjusting means 37 or screws 38.

4, the contact plate 13 and the connecting plate 15 are arranged concentrically to one another in the neutral rest position of the middle and / or intermediate plate 8 and one further falls

The longitudinal center axis 49 of the center and / or intermediate plate 8 together with the longitudinal center axis 24 of the elastomer bearing 10. Furthermore, it can be seen that a surface 50 of the contact plate 13 or a surface 51 of the connecting plate 15 are aligned parallel to partial road surfaces 52 of the central and / or intermediate plate 8 or are the surfaces 50, 51 of the contact plate 13 or the connecting plate 15 of the Elastomer bearing 10 aligned perpendicular to a longitudinal central axis 49 of the central and / or intermediate plate 8.

As mentioned briefly above, the wall support profiles 41, on which the support elements 45 are preferably welded, are held in the structural part 43 via cast-in reinforcement elements 53 molded onto these wall support profiles 41. It goes without saying that the wall support profiles 41 are also attached to the structural share 43 about all other fastening methods, such as welding, screws, etc., possible. Furthermore, an outer surface 54 of the wall support profiles 41 bears against an outer surface 55 of the structural parts 43 or is cast into these structural parts 43, as a result of which optimal support is achieved for the support elements 45 welded onto the side of the wall support profiles 41 assigned to the center and / or intermediate lamella 8 .

Furthermore, this bearing arrangement 9 can be designed such that the longitudinal central axis 24 of the elastomer bearing 10, which runs in the main loading direction - according to arrow 16 - is aligned parallel and in plan view congruently with the longitudinal central axis 49 of the central and / or intermediate plate 8 and via a contact plate 13 on a further center and / or intermediate plate 8 or with the connecting plate 15 is supported on a further center and / or intermediate plate 8 or a support element 45 on the wall support profile 41.

The arrangement of the holding structure 44 or the elastomer bearing 10 and the parts connecting them to the adjacent structural parts 43 is carried out in such a way that the space available under the central and / or intermediate lamellae 8 of the carriageway crossing is sufficient and not, as in the case of on Market systems, niches in the concrete under the wall support profiles 41 are required. A particular advantage of this arrangement is that it creates a possibility of installing the entire carriageway transition only after the final completion of the structural parts 43 and the carriageway 3 applied to the bridge 6 and to the abutment 4. This makes it possible to adapt the road surface areas 52 of the center and / or intermediate slats 8 to the roadway 3 with regard to the inclination and the altitude.

5 shows the bridging device 1 according to the invention for an expansion joint 2 in a carriageway 3 in a top view.

As shown here, the holding structures 44, which are formed from the support element 45 welded onto a wall support profile 41 and an elastomer bearing 10, are alternately on one wall support profile 41 and at a distance 56 on the other wall support profile 41 as a mirror image of a central longitudinal axis 57 of the expansion joint. gap 2 arranged. In order to enable uniform load transfer via the central and / or intermediate plate 8 or the elastomer bearings 10, it is necessary that at least two or a multiple of two holding structures 44 are arranged between the structural parts 43, which also ensures a uniform expansion or contraction of the expansion joint 2. The distance 56 between the holding constructions 44 measured in the longitudinal direction of the central and / or intermediate plate 8 also corresponds to a support distance 58, this support distance 58 between two elastomer bearings 10 supporting the central and / or intermediate plate 8 being less than a period of one The excitation frequency acting on the middle and / or intermediate plate 8 is less than twice the period of an excitation frequency acting on the middle and / or intermediate plate 8.

This arrangement of the elastomer bearings 10 and the fact that the two elastomer bearings 10, each forming a pair, are connected to the central and / or intermediate plates 8 or the wall support profiles 41, these are alternately pressurized in the longitudinal direction of the plate opposite to the direction of movement. The elastomer bearings 10 are arranged below the central and / or intermediate plate 8 and connected to the central and / or intermediate plate 8 via the contact plate 13, and the connecting plate 15 of the elastomer bearing is supported on the wall support profile 41 via a support element 45.

A distance 56 that is too large or a bearing distance 58 that is too high can cause natural vibration frequencies which overlap with the excitation frequencies, so that fatigue fracture can occur if the holding structure 44 or the elastomer bearing 10 is subjected to prolonged stress. As a result, the distance 58 between two elastomer bearings 10 is less than 2 m, but preferably between 0.7 m and 1.3 m.

A further advantage of the bearing arrangement 48 is the possibility of subsequent arrangement in a bridging device 1. In the case of existing bridging devices 1, fatigue fracture of the holding structure 44 can be reliably avoided. If the elastomer bearings 10 have an excessively high bearing distance 58, after a load is applied, the life of the center and / or intermediate lamellae 8 can be reduced, which can lead to a dangerous approximation of the natural vibration frequencies to the excitation frequencies if no vibration-damping effect is achieved becomes. This subsequent arrangement of the elastomer bearings 10 can be carried out independently of the type of the existing bridging device 1, as a result of which they can be carried out at any time without destroying the adjacent structural parts 43 and without traffic. restriction can occur.

The illustration in FIG. 6 better shows the support structure 44 or the support element 45 for an elastomer bearing 10. Here, the support element 45 is formed from a metal part with a U-shaped cross section, which is fastened to the respective wall support profile 41, preferably welded to it. The elastomer bearing 10 is connected to a base 60 of the same in the region of a front end 59 of the support element 45 designed with a U-shaped cross section. This connection can be made via all possible fastening methods suitable for this application, preferably as fastening and / or adjusting means 37 e.g. Screws used.

The fastening is achieved in that fastening and / or adjusting means 37 are passed through bores 34, 36 of the connecting plate 15 vulcanized onto the elastomer bearing body 14, which fastening means 37 pass through bores 61 of the support element 45 which are aligned with the bores 34, 36 of the connecting plate 15, be screwed in. This screwing takes place in the longitudinal direction of the slats via two spaced-apart fastening and / or adjusting means 37, in order to prevent the elastomer bearing 10 from being loosened or twisted unintentionally in the event of the vibration stresses occurring during normal operation.

The mounting plate 13 vulcanized onto the elastomer bearing body 14 is carried out in a similar manner, the fastening and / or adjusting means 37 being guided through the bores 32, 33 of the mounting plate 13 and in receiving openings 62 of a central web 63 of the central and / or Intervene between the intermediate plates 8. These receiving openings 62 are preferably formed by blind holes 64. By arranging the receiving openings 62 on the central and / or intermediate lamella 8 in the region of the central web 63, the notch effect in the lower region of the central and / or intermediate lamella 8 is reduced, particularly in the web thereof.

The elastomer bearing 10 is fastened on the central and / or intermediate plate 8 in such a way that the receiving openings 62 for the fastening and / or adjusting means 37 in an at least overlapping cross-sectional area of the underside of the means facing the elastomer bearing 10 and overlapping with the central web 63 - And / or intermediate plate 8 are arranged. This results in the fact that the elastomer bearing 10 via the two fastening and / or adjusting means 37 passing through the contact plate 13 in the region of the central web 63 or in one of the central web 63 overlapping region of the underside are connected to the central and / or intermediate lamella 8.

7 to 12, a bridging device 1 is shown in an expansion joint 2 in a carriageway 3 with two intermediate slats 65 and a central slat 66, which are arranged between the two wall support profiles 41. Furthermore, the bearing arrangements 9 assigned to the intermediate plates 65 and center plates 66 are shown.

The two bearing arrangements 9 are in turn spaced apart from one another by the bearing distance 58 according to the invention, which is less than 2 m, preferably between 0.7 m and 1.3 m, one bearing arrangement 9 for supporting or for load transfer of the two intermediate plates 65 and one another bearing arrangement 9 is designed to support or load transfer the central lamella 66. The bearing arrangement 9 for the intermediate plates 65 is designed like the bearing arrangement 9 shown in FIG. 6 and reference is made to these parts of the description with regard to the formation thereof.

The further bearing arrangement 9 for the intermediate plate 66 is designed as follows. On the undersides of the intermediate plates 65 there are holding profiles 67 which are connected to the undersides of the intermediate plates 65, preferably welded, with a longitudinal axis of the holding profile 67 being aligned or congruent with a central axis 68 which runs in the longitudinal direction of the intermediate plate 65. A cross member 69, which is supported on the holding profile 67 via an elastomer bearing 10 and is perpendicular to the central longitudinal axis 57 and is also supported on the other intermediate plate 65 via an elastomer bearing 10 on the holding profile 67, is now inserted into this holding profile 67. Here too, the bearing distance 58 according to the invention between two elastomer bearings 10 is less than 2 m, but preferably between 0.7 m and 1.3 m.

In the area of the central lamella 66, the cross member 69 is connected to the central lamella 66 in a manner fixed against movement via a contact surface 70, in particular welded, which enables the vertical load transfer of the central lamella 66 via the elastomer bearings 10 inserted into the holding profiles 67.

In order to achieve a uniform load transfer perpendicular to the central longitudinal axis 57, it is advantageous to have two of the different bearing arrangements 9 or a multiple of two along the longitudinal extent of the intermediate plates 65 or to arrange the central lamella 66. Such an arrangement of the bearing arrangements 9 enables parallelism of the intermediate lamella 65 or the central lamella 66 to one another even when a gap width 71 of the expansion joint 2 changes.

In the jointly described FIGS. 8 and 9, the support of the intermediate slats 65 via the support element 45 on the wall support profile 41 is shown.

For this purpose, it should be noted that the abutment 4 is designed as the stationary structural part 43 and the supporting structure 5 of the bridge 6 as the supporting structural part 43 or which can be adjusted in accordance with a double arrow 72 due to temperature fluctuations. The intermediate plates 65 or the middle plates 66 and the elastomer bearings 10 are arranged such that the longitudinal center axes 24 of the elastomer bearings 10 and the longitudinal center axes 49 of the intermediate plates 65 and the center plates 66 run parallel to one another or are congruent.

In this position of the bridging device 1 or the intermediate lamella 65 or middle lamella 66, the load transfer of the elastomer bearings 10 reinforced with the reinforcement inserts 17 is highest in the main direction of loading - according to arrow 16. This results from the fact that in this position of the elastomer bearing 10, the width 21 of the elastomer bearing body 14 is the same as a width 73 of a bearing surface 74 running perpendicular to the longitudinal central axis 24 of the elastomer bearing 10.

This is achieved in that the cross-section of the bearing surface 74 in this position corresponds to the cross-section of the elastomer bearing body 14 and so the highest possible stress in the main direction of loading - according to arrow 16 - can be absorbed. In the position described, the expansion joint 2 has a gap width 71 and, due to the uniform load transfer of the bearing arrangements 9, the central lamella 66 and the intermediate lamella 65 have a lamella spacing 75 that is consistently the same.

To the course of the deformation of the elastomer bearing 10 according to the invention and the adjustment of the middle or intermediate plates 8, 66; To show 65 under the action of the load, the deformation and adjustment of the individual slats under load will now be explained schematically in FIG.

The intermediate lamella 66 and the middle lamella 65 are at a temperature which corresponds to the basic calculation temperature, in a pre-calculated fin spacing 75.

This lamella spacing 75 is dimensioned such that the maximum deformability of the elastomer bearings 10 transversely to their longitudinal direction, i.e. in the radial direction is sufficient to compensate for the difference in the expansions of the supporting structure 5 with respect to the abutment 4 between the maximum maximum temperature and the maximum minimum temperature. This means that the sum of the lamella spacings 75 must be dimensioned so large that at a maximum elongation of the supporting structure 5, provided that similar bearing arrangements 9 are arranged on both ends of the supporting structure 5, they must be at least equal to or greater than half that maximum total length change of the structure 5.

This also applies to the reduction in the total length of the structure 5 at extremely low temperatures, the design usually taking into account the fact that the position shown in the drawing in FIG. 8 is maintained at the annual average temperature, whereas the position in FIG. 9 of the individual lamellae at temperatures higher than the average temperature, that is to say with an increased length of the supporting structure 5. If the structure 5 of the bridge 6 becomes shorter due to low temperatures, which are below the average value, the elastomer bearings 10 deform into a position which is depicted in FIG. 9, with respect to the central longitudinal axis 49 of the central lamella 66.

If a bearing arrangement 9 is now run over, for example with a wheel 102 of a motor vehicle, then, in addition to possible deflections, it or its elastomer bearing 10 has to absorb and simultaneously dampen the load occurring in the main direction of loading - according to arrow 16 - by changing the lamella spacing 75 , so that the impact on the abutment 4 or the structure 5 Schlagbzw. Vibration stresses are as low as possible.

For the sake of clarity, only one wheel 102 is shown in the form shown, the diameter of which is selected such that it only rests on one of the middle or intermediate plates 66, 65. Due to the vertical load transmitted via the wheel 102, the elastomer bearing 10 is now loaded and compressed in the longitudinal direction of the longitudinal central axis 49 and therefore sinks in relation to the adjacent central lamella 66 and the wall support profile 41. The load acts like a load wave, since the wheel 102 begins to slowly support itself on the intermediate plate 65 when it approaches the wall support profile 41, so that a continuously increasing part of the vertical load is absorbed by this central plate 66 and accordingly in same extent the load on the wall support profile 41 is reduced. If the entire vertical load - according to arrow 16 - is absorbed by the intermediate plate 65 and the wheel 102 moves further in the direction of the center plate 66, it then begins to partially support itself on the center plate 66, so that the elastomer bearing 10 supporting this center plate 66 under a constantly increasing load, more and more are compressed until, with approximately the same load on the central lamella 66 and the intermediate lamella 65, the same height of the two or an equal reduction 103 is reached. If the main vertical load increases in the direction of arrow 16 on the central lamella 66, then this then drops further and, on the other hand, the previously loaded intermediate lamella 65 rises to its rest position drawn in full lines.

When the load or a further rotation of the wheel 102 progresses, the same load change then takes place between the central plate 66 and the further intermediate plate 65 in the direction of the abutment 4.

At the same time, the radial deformation of the elastomer bearing 10 can achieve a damping effect between the supporting structure 5 and the abutment 4, so that vibrations of the supporting structure 5 cannot continue into the abutment 4. Such vibrations can arise from traffic loads, vehicles driving over and the like, which are additionally dampened by the radial deformation of the elastomer bearings 10.

It must now be taken into account that the introduction of the vertical forces only in a narrow sub-area over the length of the central or intermediate lamellae 8, 66; 65 takes place. This means that the momentary vertical load introduced in a narrow part of the length of these slats continues in the longitudinal direction of the slats as a vibration via the further elastomer bearings 10. After the vibrations induced by the main loads, such as truck trains or cars at high speeds or by trains due to the track gauge and the center distance, and the vibrations resulting therefrom are known in principle, it must be ensured that the distances between the individual elastomer bearings 10 in Longitudinal direction of the middle or intermediate plates 8, 66; 65 is such that in the usual occurring vibration behavior these middle or intermediate plates 8, 66; 65 come into no resonance vibration.

The occurrence of resonance vibrations is now on the one hand due to the inventive design of the elastomer bearing 10 by means of the reinforcement elements 17 and on the other hand through the support distance 58, i.e. prevents the distance between the elastomeric bearings 10 associated with the respective same slats, supported with the respective other same slat or with the wall support profile 41, e.g. the distance is dimensioned smaller than the frequency of the vibrations, as has already been explained in more detail above.

FIG. 9 shows the position of the elastomer bearings 10 or the lamellae with a reduced gap width 71 caused by temperature fluctuations.

If the bridge 6 now spreads in its longitudinal extent as a result of a temperature increase, the gap width 71 is reduced or the wall support profile 41 attached to the supporting structure 5 approaches the wall support profile 41 arranged on the abutment 4. As a result of this compression of the bridging device 1, the intermediate lamellas 65 and the middle lamellas 66 move evenly closer to one another, which again enables lamellar spacings 75 of the same size. This uniform reduction of the lamella spacings 75 is made possible by the design or the arrangement of the elastomer bearings 10 or the bearing arrangements 9. The intermediate lamella 66 is supported on the intermediate lamellas 65 via the cross member 69 - as described in more detail in the following figures - via elastomer bearings 10 and the holding profiles 67.

As a result of this reduction in the gap width 71, the elastomer bearings 10 are also deformed in the horizontal direction, so that the longitudinal central axis 24, which then runs at an angle in the direction of the wall support profile 41 and forms an angle 76 with the longitudinal central axis 49 of the intermediate plates 65. The smaller the gap width 71 of the

Expansion joint 2 due to the thermal expansion of the supporting structure 5, the greater the angle 76 between the longitudinal central axis 24 of the elastomer bearing 10 and the longitudinal central axis 49 of the intermediate plates 65. This arrangement of the elastomer bearing 10 is possible due to its design according to the invention, since this with reinforcement elements 17 provided elastomer bearing 10 thereby a high load transfer in

Main load direction - according to arrow 16 - but has sufficient elasticity in the horizontal direction to avoid such deformations without breaking to be able to record.

As a result of the deflection or the inclined position of the elastomer bearing 10 when subjected to horizontal stress, the width of the bearing surface 74 is reduced in the vertical direction. It follows that a width 21 of the elastomer layers 18 and / or the reinforcement elements 17 measured perpendicular to the longitudinal central axis 24 of the elastomer bearing 10 by a maximum adjustment dimension between the contact and / or connecting plates 13, 15 in a plane receiving the longitudinal central axis 24 must be greater than the width 21 of the elastomer bearing body 14 calculated from the bearing surface 74 required to accommodate the maximum bearing load an overlap area between the end faces 26, 31 of the elastomer bearing body 14 facing the abutment and / or connecting plates 13, 15 when the abutment and / or connecting plates 13, 15 are displaced in the plane of the longitudinal center axis 24 thereof in a direction parallel to a longitudinal center axis 24 overlap that direction by an overlap surface or bearing surface 74 which corresponds to the cross-sectional area of the elastomer bearing body 14 for the maximum load that can be absorbed in the main loading direction - according to arrow 16.

Furthermore, construction heights of the elastomer bearings 10 should be kept as low as possible in order to prevent the elastomer bearing body 14 provided with reinforcement elements 17 from buckling when the elastomer bearings 10 are deflected and when there is a high vertical load. In this geometrical state, the structure of the elastomer bearing 10 ensures that the remaining bearing surface 74 removes the greatest possible stress in the main direction of loading - according to arrow 16.

In the jointly described FIGS. 10 and 11, the bearing arrangement 9 for a central lamella 66 is shown.

The cross member 69 for supporting the central lamella 66 has a triangular cross section in the side view, a web 77 being formed on both sides in the end areas facing away from the central lamella 66, so that the cross member 69 corresponds approximately to the cross section of an upside-down T in the end view. In the area facing the central lamella 66, the cross member 69 forms the contact surface 70, by means of which it is connected to a lower face 78 of the central lamella 66 in a manner fixed against movement, in particular welded. As a result, the central lamella 66 is fastened on the cross member 69 in a non-positive and / or positive manner and is on both sides of the latter adjacent intermediate plates 65 are supported via further elastomer bearings 10 in holding profiles 67 connected to the intermediate plates ^ 5.

In the two end regions of the cross member 69 facing away from the longitudinal central axis 49 of the central lamella 66, the webs 77 have bores 79 which overlap with the bores 32, 33 of the contact plate 13 of the elastomer bearings 10 and thus the cross member 69 with the contact plates 13 Elastomer bearing 10 can be connected in a fixed manner via fastening means 80. This attachment can preferably be formed by a screw connection, since this represents a fixed connection, but a connection that can be released if necessary.

The connecting plates 15 of the elastomer bearing 10 are now connected in a fixed manner to the holding profile 67 via fastening and / or adjusting means 37, the precise fastening of the elastomer bearing 10 on the holding profile 67 being discussed in more detail in the following FIG. 12.

The result of this is that the elastomer bearing 10 is connected to the intermediate plate 65 by means of the two fastening means 80 which penetrate the contact plate 13 in the region of the web 77 of the cross member 69 by means of a holding profile 67. Furthermore, the elastomer bearings 10 for supporting the central lamella 66 are arranged on two intermediate lamellas 65 which are directly adjacent to them on opposite sides in a plane running perpendicular to the longitudinal center axis 49 of the lamellas.

If the gap width 71 is also reduced here, there is also a uniform reduction in the lamella spacings 75 and a deflection of the

Elastomer bearing 10 or the elastomer bearing body 14 due to the horizontal stress acting on the bearing arrangement 9. This design of the bearing arrangement 9 not only removes the vertical load on the bridging device 1 caused by driving on vehicles, but at the same time also ensures a uniform distribution of the central lamella 66 or the intermediate lamella 65 over the expansion joint 2 for bridging the joints. For this purpose, it is also possible to maintain uniform lamella spacings 75 between the individual center lamellas 66 or intermediate lamellas 65 in the different expansion states of the structural parts 43.

It should also be mentioned here that the elasticity to the loads occurring in different spatial directions is simple due to the design of the elastomer bearing 10 can be adapted and nevertheless a high load transfer via the elastomer bearing 10 is ensured, so that even under higher loads with a small number of elastomer bearings 10 for supporting the central lamella 66 or the intermediate lamella 65, it can be found. The deformation property of the elastomer bearing 10 is less in the direction of the longitudinal central axis 24 or the main load direction - according to arrow 16 - than transversely to the main load direction - according to arrow 16 - although, due to the smaller thickness 19 of the reinforcement elements 17, a higher number of them can be arranged and still Adequate transverse adjustability or deformability of the elastomer bearing 10 can be achieved for the exact positioning of the individual lamellae.

FIG. 12 shows a support device 81 in the form of the holding profile 67 for mounting the cross member 69 receiving the central lamella 66 with the interposition of a proven elastomer bearing 10.

The holding profile 67, which is preferably formed from metal, has a U-shaped configuration, legs 82 of the holding profile 67 or their end faces 83 being connected to the underside 78 of an intermediate lamella 65 so as to be fixed in motion, preferably welded. These two legs 82 are connected via a base 84 running transversely to them. Arranged between the base 84 and the legs 82

Corner regions 85 of the holding profile 67 are rounded off by radii 86, in order to be able to avoid a notch effect in these regions which could possibly lead to breakage.

The base 84 furthermore has the bores 34, 36 of the connecting plate 15 of the

Elastomer bearing 10 on corresponding bores 87, 88, via which the elastomer bearing 10 or the connecting plate 15 of the elastomer bearing 10 can be fastened on the base 84 of the holding profile 67 via fastening and / or adjusting means 37. The elastomer bearing 10 now extends in the direction of the end faces 83 with its reinforcement inserts 17, which are arranged and shown schematically in the elastomer bearing body 14, as far as the contact plate 13, which comes to bear on a web 77 of the cross member 69. This web 77 is now connected via the fastening means 80 in a manner fixed in terms of movement via bores 89, 90 of the web 77 corresponding to the bores 32, 33 of the contact plate 13. It is preferred to form the fastening or fastening means 80 by means of screws, since a secure connection is thus achieved, which can also be released again if necessary. Furthermore, the cross member 69 has a web 91, which extends in the direction of the central lamella 66 and which - as briefly described above - is connected to the central lamella 66 with a contact surface 70 so that it is fixed in motion, preferably welded.

This inventive design of the holding profile 67 results in the surprising advantage that the holding profile 67 is designed as a protection against breakage of the elastomer bearing 10. If a failure of the elastomer bearing body 14 or adverse external influences leads to a breakage of the elastomer bearing 10, the holding profile 67 is designed as a type of catch cage, which means that an underside 92 of the cross member 69 or the web 77 on an upper side 93 of the base 84 of the holding profile 67 comes to rest. This inventive design of this bearing arrangement 9 enables the bridging device 1 to be operated in a makeshift manner until the required maintenance or repair work is carried out.

13 and 14, another embodiment variant of the bridging device 1 is shown in plan view and in section in side view.

Here the elastomer bearings 10 are designed to be horizontal, i.e. the longitudinal central axes 24 of the elastomer bearings 10 run parallel to central axes 68 of the central lamella 66 or the intermediate lamella 65. The elastomer bearings 10 are arranged below the central plate 66 or the intermediate plates 65 and are connected to a support body 94 by means of fastening and / or adjusting means 37, in particular screws 38. This support body 94 is welded or integrally formed on the underside 78 of the central lamella 66 or the intermediate lamella 65 and extends transversely to the longitudinal central axis 24 in the opposite direction to the lamellae.

On a side surface 95 of the support body 94, the contact plate 13 of an elastomer bearing 10 is fastened by means of fastening means 37, preferably screws 38. A support arm 97 is further arranged on the side surface 96 of the support body 94 opposite the side surface 95. The connection of two elastomer bearings 10, which run transversely to the central axes 68, is formed via this support arm 97. This support arm 97 is preferably made of a very resistant material such as metal. Furthermore, an edge support arm 98 is arranged on the connecting plate 15 of the elastomer bearing 10 and is also connected to the latter by means of fastening and / or adjusting means 37, in particular screws 38. This edge support arm 98 now extends from the connecting plate 15 of the elastomer bearing 10 in the direction of the wall support profile 41 and is connected to the latter in a fixed manner, in particular by welds. Sufficient support of this bearing arrangement 9 in the longitudinal direction of the carriageway is possible due to this movement-fixed connection of the edge support arm 98 to the wall support profile 41.

The support arm 97 is now in turn connected in an end region facing away from the support body 94 via fastening and / or adjusting means 37 to the connecting plate 15 of the subsequent elastomer bearing 10 or arranged on the central lamella 66.

The formation of the bearing arrangement 9, which is arranged on the further wall support profile 41, results from the reflection of the first bearing arrangement 9 about the central axis 68 of the central lamella 66 and a transverse axis 99, which extends in the longitudinal direction of the carriageway.

This special arrangement of the elastomer bearings 10 in the horizontal position enables horizontal loads to be transferred in the longitudinal direction of the slats instead of vertical loads. This makes it possible to arrange bearing arrangements 9 in a bridging device 1 only with vertically oriented elastomer bearings 10 or only with horizontally oriented elastomer bearings 10. Of course, a combination of the different bearing arrangements 9 can also be used, which depends on the different types of loads.

If road crossings are driven at an angle or are aligned at an angle to the longitudinal direction of the road, i.e. if the direction of travel and thus the direction of the braking forces is not perpendicular to the sipes, an in-over occurs when rolling over and braking

Slat longitudinal direction acting horizontal load component. It is therefore expedient to arrange an elastomer bearing 10 at one location for each central lamella 66 or intermediate lamella 65 in order to prevent undesired horizontal movements of the lamellae. The elastomer bearings 10 are arranged in such a way that their direction of movement coincides with the direction of movement of the central lamella 66 or the intermediate lamellae 65 and vertical loads lead to shear deformation.

Furthermore, this bridging device 1 is designed such that the elastomer bearings 10 are arranged below the central lamella 66 and are connected to the intermediate lamellas 65 via a support body 94 which is connected to them in motion via the contact plate 13 or the connecting plate 15 and the further contact plate 13 of the elastomer bearing 10 a support arm 97 or an edge support arm 98 on which neighboring intermediate plate 65 or the wall support profile 41 is supported. Furthermore, the elastomer bearings 10 are connected to the wall support profile 41 by a centrally arranged central lamella 66 via the intermediate lamella 65 arranged between this and the wall support profile 41, and the further elastomer bearing 10 is connected to the other via the intermediate lamella 65 arranged between this and the further wall support profile 41 Wall support profile 41 connected or supported on this. The elastomer bearings 10 are also arranged adjacent to one another between the center plate 66 and an intermediate plate 65 or different intermediate plates 65 or the intermediate plate 65 and the wall support profile 41 in the direction of the center axis 68 of the plates. Furthermore, a distance 100 between two central axes 68 of a central plate 66 and an intermediate plate 65 is equal to a distance 101 between a longitudinal central axis 24 of an elastomer bearing 10 assigned to the central plate 66 and the longitudinal center axis 24 of an elastomer bearing 10 assigned to an intermediate plate 65.

15 shows a further embodiment variant of the bearing arrangements 9 for an intermediate plate 66 and two intermediate plates 65 arranged adjacent to this middle plate 66.

10, where the central lamella 66 is not supported on the intermediate lamella 65 via the cross member 69. It should also be noted here that the intermediate slats 65 adjacent to the wall support profiles 41 are supported as shown in FIG. 8.

In this embodiment variant, the central lamella 66 is also fastened on its underside 78 with an elastomer bearing 10 via fastening and / or adjusting means 37. The elastomer bearings 10 fastened on the central lamella 66 are in turn connected with their connecting plate 15 to the base 60 of the support element 45 via fastening and / or adjusting means 37.

The support element 45 is here the same or similar to the illustration in FIG. 4, which is a component with a U-shaped cross section, preferably made of metal. In order to avoid unnecessary repetitions, reference is made to the detailed description in FIG. 6 for fastening the elastomer bearings 10 on the support elements 45.

The support elements 45 are in this embodiment variant with the intermediate lamellae 65 facing end edges 104 of the legs of the U-profile connected to the undersides 78 of the same or preferably welded. The intermediate plates 65 are in turn supported by elastomer bearings 10, which are fastened on support elements 45. These support elements 45 assigned to the intermediate lamellae 65 are in turn cast onto the abutment 4 or the supporting structure 5

Wall support profiles 41 attached, preferably welded, as can be seen better from FIG. 8.

Due to this inventive design of the bridging device 1 for an expansion joint 2, each central lamella 66 or intermediate lamella 65 is several in

Spaced elastomer bearings 10 are assigned to the longitudinal direction of the lamellae, the number of which on each lamella must be at least two or a multiple of two. The advantage over the bearing arrangements 9 shown in FIG. 8 results from the fact that elastomeric bearings 10 are assigned to each lamella, which enables a larger gap width 71 of the expansion joint 2 in the longitudinal direction of the carriageway compared to the previous embodiment variants. As a result of this advantageous design of the bridging device 1, even with larger gap widths 71, a uniform adjustment of the slats in the longitudinal direction of the carriageway is achieved, which also ensures constant slat distances 75 between the individual slats.

By using the support elements 45 to support the central lamella 66 with respect to the intermediate lamellae 65, which, like the support elements 45 which support the intermediate lamellae 65 on the wall support profiles 41, are formed, the number of components for mounting the bridging device 1 is reduced, thereby a cheaper version of the bridging device 1 is made possible.

Basically, it should be noted that each lamella is supported on elastomeric bearings 10 on at least two or an arbitrary multiple thereof on each neighboring lamella or the wall support profile 41. Furthermore, the elastomer bearings 10 or bearing arrangements 9 between the center plate 66 and an intermediate plate 65 or different intermediate plates 65 or the intermediate plate and the wall support profile 41 are each spaced apart from one another in the direction of the central axis 68 of the plates, alternately arranged in succession. This advantageous design ensures a uniform adjustment of the slats in the gap width 71 or a parallel arrangement thereof. In conclusion, it should be pointed out that in the exemplary embodiments described above, individual parts have been disproportionately enlarged in order to improve understanding of the solution according to the invention. Furthermore, individual parts of the previously described combinations of features of the individual exemplary embodiments in conjunction with other individual features from other exemplary embodiments can form independent solutions according to the invention.

Above all, the individual in FIGS. 1; 2, 3; 4, 5, 6; 7; 8, 9; 10, 11; 12; 13, 14; 15 shown embodiments form the subject of independent, inventive solutions. The tasks and solutions according to the invention in this regard can be found in the detailed descriptions of these figures.

B e z u g s z e i c h e n a u f s t e l l u n g

Bridging device 41 Wall support profile Expansion joint 42 Anchoring element roadway 43 Structural part abutment 44 Support structure support structure 45 Supporting element bridge 46 Component edge lamella 47 Side surface center and / or intermediate lamella 48 Bearing arrangement Bearing arrangement 49 Longitudinal central axis Elastomer bearing 50 Surface mountain 51 Surface tunnel 52 Roadway partial surface contact plate 53 Reinforcement element elastomer bearing body 54 Outer surface connecting plate 55 Outer surface Arrow 56 distance reinforcement element 57 central longitudinal axis elastomer layer 58 support distance thickness 59 frontal width 60 base width 61 bore height 62 receiving opening thickness 63 central web longitudinal central axis 64 blind hole amount 65 intermediate lamella end surface 66 central lamella length 67 retaining profile width 68 central axis rounding 69 cross member bottom 70 contact surface end surface 71 gap width bore 72 Double arrow, bore 73, wide bore 74, bearing surface, bore 75, lamella spacing, bore 7 6 angle fasteners and / or adjustment means 77 web screw 78 bottom thread 79 hole thickness 80 fasteners 81 support device

82 legs

83 end face

84 base 85 corner area

86 radius

87 hole

88 hole 89 hole

90 hole

91 footbridge

92 bottom 93 top

94 support body

95 side surface

96 side surface 97 support arm

98 edge support arm

99 transverse axis 100 distance 101 distance

102 wheel

103 lowering

104 end face

Claims

Patent claims

1. Elastomer bearing for a bearing arrangement for lamellas of an expansion joint in a carriageway, in particular bridges with an elastomer element, characterized in that several elastomer layers (18) which are at least partially separated from one another by reinforcement elements (17) are arranged in the main loading direction of the elastomer bearing (10), whose thickness (23) is only between 1% and 20%, preferably between 2 mm and 10 mm, of the width dimension running perpendicular thereto.

2. Elastomer bearing according to claim 1, characterized in that a height (22) of the reinforcement elements (17) is less than the thickness (23) of the elastomer layers (18).

3. Elastomer bearing according to claim 1 or 2, characterized in that the elastomer bearing body (14) in its two parallel to the reinforcement elements (17) extending end faces (26, 31) each with a molded or molded, in particular made of metal or plastic or Composite material, existing contact plate (13) or connecting plate (15) is connected.

4. Elastomer bearing according to one or more of the preceding claims, characterized in that the contact plate (13) and the connecting plate (15) with bores (32 to 36) for receiving fastening and / or adjusting means (37), in particular screws (38 ) is trained.

5. Elastomer bearing according to one or more of the preceding claims, characterized in that the connecting plate (15) and / or a reinforcement element (17) from which the elastomer layers (18) forming the elastomer is encased or embedded in this.

6. Elastomer bearing according to one or more of the preceding claims, characterized in that one of the connecting plates (15) is formed by a bearing plate (13) projecting beyond the outer circumference of the reinforcement elements (17) and the projecting parts of the bearing plate (13) a fillet is connected to one of the elastomer layers (18).

7. elastomer bearing according to one or more of the preceding claims, characterized in that the reinforcement elements (17) made of textiles such as fabrics, knitted fabrics, nets, grids, nonwovens or any other fibrous or thread-like materials made of metal, ceramic, natural or plastics or are formed in any mixture.

8. Elastomer bearing according to one or more of the preceding claims, characterized in that the reinforcement elements (17) are arranged concentrically or centered with respect to a central longitudinal central axis (24).

9. elastomer bearing according to one or more of the preceding claims, characterized in that the elastomer layers (18) in the longitudinal direction of the longitudinal central axis (24) have a higher rigidity than in the direction perpendicular thereto.

10. Elastomer bearing according to one or more of the preceding claims, characterized in that the elastomer is formed by rubber, in particular natural rubber.

11. Elastomer bearing according to one or more of the preceding claims, characterized in that the Shore hardness of the elastomer, in particular the elastomer layers (18) between the reinforcement elements (17) between 50 Shore A and 90 Shore A, preferably between 65 Shore A and 70 Shore A is.

12. Elastomer bearing according to one or more of the preceding claims, characterized in that the elastomer layer (18) is vulcanized onto a contact or connecting plate (13, 15) and / or a reinforcement element (17).

13. Elastomer bearing according to one or more of the preceding claims, characterized in that a contact or connecting plate (13, 15) and / or a reinforcement element (17) is vulcanized into the elastomer layer (18).

14. Elastomer bearing according to one or more of the preceding claims, characterized in that the dimension of the connecting plate (15) at least one height of the elastomer bearing body (14) running perpendicular to the reinforcement elements (17) between the contact or connecting plates (13, 15) corresponds.

15. Elastomer bearing according to one or more of the preceding claims, characterized in that a mass of the contact plate (13) and a distance between the elastomer bearing body (14) and a welding area for dissipating a quantity of heat to achieve a surface temperature of the contact plate (13) in the adhesion range of the elastomer layer (18) of less than 120 ° C.

16. Elastomer bearing according to one or more of the preceding claims, characterized in that in the contact or connecting plate (13, 15) perpendicular to the reinforcement elements (17) several, preferably two, in particular with threads (39) provided bores (32 to 36) are arranged.

17. Elastomer bearing according to one or more of the preceding claims, characterized in that in the region of the contact plate (13) and the connecting plate (15) or these receiving or penetrating a plurality of preferably threaded (39) bores (32 to 36) for fastening - And / or adjusting means (37), in particular screws (38) are arranged, which are aligned perpendicular to the reinforcement elements (17).

18. Bearing arrangement for lamellas for bridging an expansion joint between two components, in particular the carriageway on bridges, with at least one

Middle lamella, which are supported on the components via elastomer elements, characterized in that the elastomer elements are formed by an elastomer bearing (10) according to one of Claims 1 to 17.

19. Bearing arrangement according to claim 18, characterized in that a central and / or intermediate plate (8, 66; 65) via the elastomer bearing (10) on a on a wall support profile (41) and / or structural part (43) or an intermediate plate ( 65) attached support element (45) is supported.

20. Bearing arrangement according to claims 18 or 19, characterized in that each lamella on each adjacent lamella or the wall support profile (41) is supported by at least two or any multiple of two elastomeric bearings (10).

21. Bearing arrangement according to one or more of the preceding claims, characterized in that each lamella is assigned at least two or an arbitrary multiple of two to elastomer bearings (10) and the two are each one Pair of elastomeric bearings (10) are connected to the central and / or intermediate plates (8, 66; 65) or the wall support profiles (41) in such a way that they are alternately pressurized when the directions of movement are opposite in the longitudinal direction of the plates.

22. Bearing arrangement according to one or more of the preceding claims, characterized in that the connecting plate (15) and the contact plate (13) are arranged concentrically to one another in the neutral rest position of the lamellae.

23. Bearing arrangement according to one or more of the preceding claims, characterized in that surfaces of the connecting or contact plate (15, 13) of the elastomeric bearings (10) are aligned parallel to partial road surfaces (52) of the slats.

24. Bearing arrangement according to one or more of the preceding claims, characterized in that surfaces (50, 51) of the connecting or contact plate (15, 13) of the elastomer bearing (10) are aligned perpendicular to the longitudinal central axis (49) of the lamellae.

25. Bearing arrangement according to one or more of the preceding claims, characterized in that the wall support profile (41) and / or the support element (45) anchored in the structural part (43) or cast into it reinforcement elements (53) via fastening elements, e.g. a weld or screws is held.

26. Bearing arrangement according to one or more of the preceding claims, characterized in that the longitudinal central axis (24) of the elastomer bearing (10) extending in the main loading direction - according to arrow (16) - is parallel and in plan view is congruent with the longitudinal central axis (49) of the central and / or intermediate lamella (8) is aligned and via a contact plate (13) with a central and / or intermediate lamella (8) and with the connecting plate (15) with a further lamella or a support element (45) on the wall support profile (41 ) is supported.

27. Bearing arrangement according to one or more of the preceding claims, characterized in that an existing bearing distance (58) in the longitudinal direction of the central and / or intermediate lamellae (8, 66; 65) of the central and / or

Intermediate lamella (8, 66; 65) supporting elastomer bearing (10) is less than a period of one acting on the central and / or intermediate lamella (8, 66; 65) an excitation frequency generated vibration.

28. Bearing arrangement according to one or more of the preceding claims, characterized in that a bearing distance (58) existing in the longitudinal direction of the central and / or intermediate lamellae (8, 66; 65) of the central and / or intermediate lamellae (8, 66; 65) supporting elastomer bearing (10) is less than a double period of a vibration acting on the central and / or intermediate plate (8, 66; 65) generated by an excitation frequency and that between the two elastomer bearings (10), one is preferred damping device formed by an elastomer bearing (10) in the form of a further elastomer bearing (10).

29. Bearing arrangement according to one or more of the preceding claims, characterized in that the bearing distance (58) between two elastomer bearings (10) or an elastomer bearing (10) and a damping device is less than 2 m, preferably less than 1.7 m .

30. Bearing arrangement according to one or more of the preceding claims, characterized in that the bearing distance (58) between two elastomer bearings (10) or an elastomer bearing (10) and a damping device is between 1.3 m and 0.7 m.

31. Bearing arrangement according to one or more of the preceding claims, characterized in that a support element (45) of a wall support profile (41) is designed to rest on a side surface (47) of a structural part (43).

32. Bearing arrangement according to one or more of the preceding claims, characterized in that the wall support profile (41) is held by means of an anchoring element (42) which is connected to it in one piece, preferably in the structural part (43).

33. Bearing arrangement according to one or more of the preceding claims, characterized in that the support element (45) is formed by at least one component with a U-shaped cross section, which in the region of the front ends (59) of the legs with the elastomer bearing (10) and in Area of the side surface (47) is connected to the wall support profile (41).

34. Bearing arrangement according to one or more of the preceding claims, characterized in that a receiving opening (62) for the fastening and / or adjusting means (37) of the elastomer bearing (10) is arranged in a central web (62) of the central and / or intermediate plate (8).

35. Bearing arrangement according to one or more of the preceding claims, characterized in that the receiving openings (62) for the fastening and / or adjusting means (37) in an overlapping with the central web (63), at least overlapping cross-sectional area of the elastomer bearing (10) facing the bottom (78) of the middle and / or intermediate lamella (8, 66; 65) is arranged.

36. Bearing arrangement according to one or more of the preceding claims, characterized in that the elastomer bearing (10) on the two the mounting plate (13) penetrating fastening and / or adjusting means (37) in the region of the central web (63) or in one of the central web (63) overlapping region of the underside (78) are connected to the central and / or intermediate lamella (8, 66; 65).

37. Bearing arrangement according to one or more of the preceding claims, characterized in that a width (21) of the elastomer bearing body (14) and / or reinforcement elements (17) measured perpendicular to the longitudinal central axis (24) about a plane accommodating the longitudinal central axis (24) maximum adjustment dimension between the contact and / or connecting plate (13, 15) is greater than the width (21) of the elastomer bearing body (14) calculated from the bearing surface (74) required to accommodate the maximum bearing load.

38. Bearing arrangement according to one or more of the preceding claims, characterized in that an overlap area between the end faces (26, 31) of the elastomer bearing body (14) facing the abutment and / or connecting plates (13, 15) in one of its longitudinal central axes (24 ) receiving plane of displacement of the contact and / or connecting plates (13, 15) overlap in a direction seen parallel to the longitudinal central axis (24) by an overlap surface or bearing surface (74) that the cross-sectional area of the elastomer bearing body (14) for the maximum permissible load capacity corresponds.

39. Bearing arrangement according to one or more of the preceding claims, characterized in that the elastomer bearing (10) for supporting a central lamella (66) on two intermediate lamellae (65) directly adjacent thereto on opposite sides in a perpendicular to the central axis (68) of the La - mellen trending plane are arranged.

40. Bearing arrangement according to one or more of the preceding claims, characterized in that a central plate (66) on the elastomer bearing (10) or via an elastomer bearing (10) on each parallel parallel intermediate plates (65) is supported by a cross member (69) is.

41. Bearing arrangement according to one or more of the preceding claims, characterized in that the elastomeric bearings (10) are arranged below the central lamella (66) and with the intermediate lamella (65) via a support body (94) connected in a non-moving manner to this via the contact plate (13 ) or the connecting plate (15) are connected and the further contact plate (13) of the elastomer bearing (10) via a support arm (97) or an edge support arm (98) on the adjacent intermediate plate (65) or middle plate (66) or the wall support profile (41) is supported.

42. Bearing arrangement according to one or more of the preceding claims, characterized in that the elastomer bearing (10) between the central plate (66) and an intermediate plate (65) or different intermediate plates (65) or the intermediate plate (65) and the wall support profile (41) are spaced apart from one another in the direction of the central axis (68) of the lamellae and are arranged alternately in succession.

43. Bearing arrangement according to one or more of the preceding claims, characterized in that the central plate (66) is non-positively and / or positively fastened on the cross member (69) and on the intermediate plates (65) adjacent to this on both sides via further elastomer bearings (10). are supported in holding profiles (67) connected to the intermediate lamellae (65).

44. Bearing arrangement according to one or more of the preceding claims, characterized in that the elastomer bearing (10) from a centrally arranged central lamella (66) via the intermediate lamellae (65) arranged between this and the wall support profile (41) connected to the wall support profile (41) and the further elastomer bearing (10) is connected or supported on the further wall support profile (41) via the intermediate lamellae (65) arranged between this and the further wall support profile (41).