HU223212B1 - Device for spanning an expansion joint of a bridge - Google Patents

Abstract

Elastomer support (10) can be advantageously used for the support structures (9) that hold the lamellae in the bridge structures that bridge the expansion gaps of the roadways, which hold the lamellae, especially for bridges containing elastomer element(s), moving in the main load direction according to the arrow (16) with reinforcing inserts (17) at least partially separated elastomeric layers ( 18), whose thickness (23) is between 1% and 20% of the width measured perpendicular to the thickness (23), preferably between 2 mm and 10 mm. The support design according to the invention for the connection of at least one lamella and/or the included additional lamellas to the construction parts with flexible structural elements of elastomer material in the bridging structures containing at least one central lamella of the dilation gaps formed between two building parts, especially in the roadway of bridges, contains at least one elastomer support (10) of the structure described above. ŕ

Description

The scope of the description is 28 pages (including 13 pages)

EN 223 212 B1

FIELD OF THE INVENTION The present invention relates to an elastomeric support for the dilatation joints of road surfaces in bridging, lamellar structures for lamellar support structures, in particular bridges comprising elastomeric elements, and a support structure for at least one lamella in the bridge structures of at least one central lamella between two parts of the structure, especially in bridges. and / or attaching the additional lamellae contained therein to the structural parts with elastomeric elastic members.

The use of lamellas, including intermediate or middle lamellae, incorporated in a dilatation gap is known to compensate for the length changes caused by thermal expansion between the bridge structure and the supporting structure of the two different parts of the building, such as a bridge. The number of lamellae parallel to each other in the direction of the dilatation gap, or parallel to the support structure, is determined depending on the permissible variation of the gap widths and the loading capacity of the individual lamellae. The maximum permissible slit width is usually determined by the design information or the relevant professional standards. The lamellae used in the bridging device, on the one hand, have to transmit the load caused by the vehicles to the bridge arm and the supporting structure, on the other hand the bridging device must also ensure the even distribution of the lamellae in all operating states, i.e. in different thermal expansion states of the building parts in the dilatation gap.

According to patent specification CH 651 339, there are springing spacers between the individual lamellae, which are located either directly or on transverse joints between the lamellae rigidly connected to the lamellae.

Also known is that the lamellae are placed on rails, which are provided as lattice holders, irrespective of the elastic joints for applying the load on the lamellae, which transfer the load to the bracket or to the supporting structure and, if the width of the gap is changed, allow the width of the dilatation gap to extend. even distribution of lamellae.

Finally, it is known from the Applicant's published patent specification No. 397 674 B, that the support of the lamellae of the lamellas of the lamellas is formed by individual block supports distributed longitudinally along a support section which extend to the periphery of the building part and the supporting structure bounding the gap and the barrel of the lamellae. are supported on adjacent intermediate support sections. By having several such flexible block supports spaced along the length of the lamellae, the stress loads caused by the change in distance between each central or intermediate lamellae are shared over several of these block supports. Thanks to such elastic support of the lamellae, both their load-bearing function and the uniform spacing between the lamellae are ensured, since the flexible block supports are self-adjusting and at the same time have few mechanical parts. However, it has been shown that such elastomeric supports are not suitable for satisfying all the applications in practice.

It is an object of the present invention to provide an elastomeric support and support design with a small number of multipurpose structural elements to provide a satisfactory solution for each application.

The object is to be achieved by forming and applying an elastomeric support which, according to the new and determining features of the invention, comprises elastomeric layers at least partially separated from each other by reinforcing inserts in the direction of the main load, the thickness of which is 1% and 20% of the width perpendicular to the thickness. preferably between 2 mm and 10 mm.

The advantage of such elastomeric supports according to the invention is that their direction-dependent elasticity can be scaled easily for loads acting in different directions. However, the elastomeric supports of the present invention are capable of bearing a high load, which makes it possible to use only a small number of elastomeric supports at high loads to support the middle and / or intermediate lamellae of the bridge structures.

It has been found to be advantageous if the height of the reinforcing insert (s) is less than the thickness of the elastomeric layers, because the elasticity or deformation ability of the elastomeric support is less perpendicular to the longitudinal axis or the main load direction than in the main load direction and due to the low thickness of the reinforcing pads. more can be placed in the elastomer support. However, the transverse adjustability or transverse deformation capability of the elastomeric support for positioning the individual lamellae can be ensured.

In preferred embodiments, the elastomeric support is provided with a support body, which is attached to one of the reinforcing or paralleling plates and / or connecting plates, in particular of metal or plastic or compound material, which are parallel to the reinforcing pads. By this design, the force transfer takes place on a relatively large surface such that a high load can be transmitted without excessive wear or shearing of each connection area. In addition, it can be adapted to the particular bonding technology between the elastomeric support and the lamellae, or between the cross or intermediate supports.

In preferred embodiments of the support according to the invention, holes are provided for engaging and / or adjusting elements, in particular screws, in the support plate and the connecting plate, which does not require weakening of the multilayer sandwich structure comprising elastomeric layers and reinforcement inserts, and adjusting elements. can also be used to easily adjust the elastomeric supports at the time of installation according to the respective dilatation state of the bridges and the bridges, so that the elastomeric supports 2

EN 223 212 B1 may be installed or replaced in any operating condition.

The elastomeric support provides a corrosion-resistant design when the bonding plate and / or reinforcing insert are surrounded by an elastomeric material forming the elastomeric layers.

The outer arrangement of the fasteners outside the circumference of the elastomeric supports is provided when one of the connecting plates is formed as a supporting plate extending beyond the outer circumference of the reinforcing insert and the protruding portions of the supporting plate are connected to one of the elastomeric layers by means of a rounded thickening. By designing the transition ranges properly, transverse loads, i.e., perpendicular to the main load direction, can be taken up.

The elastomer supports a long life and high strength when the reinforcing pads are made from any fiber or fiber material made of textile material, particularly fabric, crocheted fabric, mesh, grid, veil or other, preferably metal, ceramic, natural or plastic, or any mixture thereof. . By proper selection of structural materials, the adhesion between reinforcing pads and elastomeric layers can also be significantly improved.

The elastomer results in an even distribution of the load on the support when the reinforcing pads are centrally or centrally located on a longitudinal axis.

The retraction force and the retraction force and the elastic deflection during the elongation are preferably and for each parameter adjustable if the stiffness of the elastomeric layers in the longitudinal direction is greater than the rigidity measured in this direction.

If the elastomeric material is made of rubber, especially natural rubber, it is especially durable and long lasting for most applications, which is also resistant to environmental impacts and has additional benefits for heavy duty, especially road bridges. in the dilatation joints on the floor.

With respect to load-bearing capacity and desirable damping characteristics, in particular for use in bridges, the elastomeric supports according to the invention have been found to have a Shore hardness of between 50 Shore A and 90 Shore A between the elastomeric layers used, in particular the reinforcing pads. , preferably between 65 Shore A and 70 Shore A.

A durable and suitably corrosion-resistant solution for attaching the elastomeric support to the articulated attachment or other supporting parts is provided by the expediency measures by which the elastomeric layer is vulcanized onto a support plate or connecting plate and / or a reinforcing insert and / or a supporting plate and / or a connecting plate and / or a reinforcing insert is vulcanized into the elastomeric layer.

The elastomer provides a favorable force distribution and support force in the support when the size of the connecting plate corresponds to the structural height between the elastomeric support plate and / or the connecting plate perpendicular to the reinforcing pads.

In preferred and preferred embodiments of the elastomeric support according to the invention, the weight of the support plate and the heat dissipation distance between the elastomeric support body and the welding region are selected such that the temperature of the bearing plate in the adhesion range of the elastomeric layers is at most 120 ° during the welding operation. C value. Thus, the support body can be connected to the other building parts in a manner commonly used in the construction industry, in particular by welding, without adversely affecting the elasticity and attenuation of the elastomeric layer to restore thermal expansion displacements.

Simple and flawless multi-point attachment can be achieved if there are more, preferably two, especially threaded holes, perpendicular to the reinforcing pads in the support plate and or the connecting plate.

If there are a plurality of holes, preferably threaded, in the region of the reinforcing pads for engaging and / or adjusting elements in the support plate and the coupling plate, the elastomeric supports can easily adjust the lamellae during assembly and the dilatation gap. to different positions of structural parts spaced apart from each other.

By using the above-described support structures according to the invention, both the load-bearing function and the self-aligning uniform clearance of the lamellae moving together with the dilatation gap can be ensured. Thanks to the present invention, fewer structured elements are sufficient, of which a larger number of pieces may be used. As a result, inventory management becomes more favorable and the structural engineering input required to manufacture support structures is smaller. The load capacities of the existing dilatation joints with the support designs of the present invention can also be easily increased, since only an additional installation of additional support designs according to the invention is sufficient for this.

The advantageous load distribution and the favorable automatic adjustment of the lamellae of the variable size dilatation joints can be achieved by attaching the central lamella and / or additional intermediate lamellae to the support bracket and / or directly to the building part or to an intermediate lamina through the elastomeric support. .

Uniform uptake of the loads acting on the lamellae or on the elastomeric supports can be achieved by attaching each lamella to the adjacent lamellae or to the wall support section by means of an elastomeric support number corresponding to at least two or two multiple pluralities and / or two or two arbitrary multiple elastomers for each lamella. a support is assigned and each of the two elastomeric supports constituting the pair is in such a way

Coupled to the central lamella and / or the intermediate lamellae, or to the wall support sections, that the elastomeric supports are alternately subjected to compression loads in opposite directions of displacement in the longitudinal direction of the lamellae.

Advantageous force delivery can be achieved by providing the elastomeric supports in such a manner that the connecting plate and the bearing plate are concentric with each other in a neutral rest position of the lamellae.

Even loading and even loading can also be achieved when the connecting plates are positioned in different spatial positions relative to each other, if the surfaces of the elastomeric support connecting plate and / or the supporting plate are parallel to the road portions of the lamellas forming part of the roadway.

It has been found advantageous if the surface of the elastomeric support joining plate and / or the supporting plate surface is perpendicular to the longitudinal axis of the lamellae, since it is also possible to fix it to the building part in addition to the solid fixation of the wall support section in the building part.

An even reduction or increase in the slit width or the individual slit distances is particularly advantageous if the wall support section and / or the support member are fastened to the reinforcing pads anchored in or embedded in the building part with fasteners, such as a weld seam or screws.

Particularly preferred embodiments of the elastomeric support according to the invention are those in which the longitudinal axis of the elastomeric support in the main loading direction is parallel and overlaps with the longitudinal axis of the central and / or intermediate lamella, and the support is provided via a support plate to a central and / or intermediate body. with a lamella and through a connecting plate with an additional lamella or with a support for the wall support section. It is also advantageous if the center lamella and / or the intermediate lamella supporting elastomeric supports are in the longitudinal support of the middle lamella and / or intermediate lamellas less than one period of oscillation frequency caused by the central lamella and / or the intermediate lamellae.

Preferably, the center lamella and / or the intermediate lamella supporting elastomeric supports in the longitudinal direction of the central lamella and / or intermediate lamellae are less than twice the period of the oscillating frequency of the central lamella and / or intermediate lamellae, and are preferably a damping device, preferably formed of an elastomeric support, preferably formed of an elastomeric support, is preferably provided between the two elastomeric supports.

It has been found to be advantageous if the support between two elastomeric supports and an elastomeric support and a damping device is less than 2 meters, preferably less than 1.2 meters, preferably 1.3 meters to 0.7 meters.

With the above-mentioned embodiments, the lamellae can be optimally supported and the load-bearing capacity is optimal. In such embodiments of elastomeric supports, the durability can be substantially increased.

It is easy to provide a solid fixation of the wall support section to the building section, if the support member of the wall support section has a bearing on a side surface of the building part.

Uniform loading of the middle lamellae or intermediate lamellae can be achieved by retaining the wall support section with an integral piece, preferably in the construction part, or embedded in the piece.

The elastomeric support containing the support design has proved to be an ideal structural solution if the support member is at least one structural section with a cross section U, which is connected to the elastic support and the lateral surfaces of the stems at the end ends of the stems.

An optimum bond can be achieved between the elastomeric support and the middle lamella, or between the intermediate lamellas, and the elastomeric support can be attached to the lower part of the lamella without stress concentration if at least one of the elastomeric support binder and / or adjusting member in the central ridge of the intermediate lamellae a receiving aperture is formed and / or the receiving apertures for the engaging and / or adjusting members are formed in the middle lamina of the central lamella and / or intermediate lamellar in the middle ridge of the elastomeric support, at least in part overlapping cross-sectional area, and / or the elastomeric support with the two engagement and / or adjusting elements passing through the support plate in the central spine region or the lower side in the overlapping region of the central ridge to the middle lamella and / or intermediate lamella c. satlakoztatva.

In the elastomeric supports, the safe loading of the vertical load can be ensured despite the horizontal deformations of the elastomeric support, if the width of the elastomeric support body and / or reinforcement in the direction perpendicular to the longitudinal axis of the longitudinal axis is greater than the maximum displacement of the bearing plate and / or the coupling plate, as the width of the elastomeric support body from the supporting surface for the maximum support load and / or the overlapping surface between the elastomeric support body faces of the supporting plates and / or the connecting plates, or the support surface for the supporting plates and / or the connecting plates with the longitudinal axis of the elastomeric support body. when moving in a plane parallel to the longitudinal axis, the elastomeric support k is designed for the maximum allowable load. size.

A preferred arrangement of elastomeric supports can be provided both in the vertical and in the horizontal, i.e. substantially horizontal directions, with embodiments in which the central lamella is supported by elastomeric supports supporting the central axis of the lamellae and / or a central lamella, supporting two intermediate lamellas directly adjacent to it. inserting a cross member on the elastomeric supports

Or via an elastomeric support attached to intermediate lamellae arranged parallel to the central lamella, on both sides, and / or the elastomeric supports are located below the central lamella and on the intermediate lamella on a rigidly attached support body, the bearing plate, and / or are coupled through the connecting plate, while the other bearing plate of the elastomeric support is connected to a support arm and / or a flange support arm by adjoining the adjacent intermediate lamella or middle lamella or wall support section.

The preferred connection of the middle lamella with adjacent intermediate lamellas is preferably made possible by a suitable construction in which the elastomeric supports between the central lamella and an intermediate lamellar or between the various intermediate lamellas or between the intermediate lamellar and the wall support section are spaced apart and spaced. arranged alternately in the direction of the central axis of the lamellae.

The good attachment of each elastomeric support along the entire width of the bridging device, and thus the advantageous load-bearing along the entire width of the dilatation gap, is achieved by preferred embodiments in which the central lamella is attached to the cross-member by force and / or shape locking and intermediate additional elastomeric supports located in the slabs attached to the lamellae are connected to adjacent intermediate lamellas adjacent to each other, and / or the elastomeric supports are attached to the wall support section through the intermediate lamellae between the center and the wall support section, and the other elastomeric supports are through the intermediate lamellas disposed between these and the additional wall support section connected to the additional wall support section.

The invention will now be described in more detail by way of example only with reference to the accompanying drawings, with reference to the accompanying drawings. It is in the drawing

Fig. 1 is a simplified top plan view of a half-face bridge device for bridging a dilatation gap obliquely oblique to the longitudinal direction of the roadway;

Fig. 2 is a longitudinal sectional view of a first exemplary elastomeric support according to the invention and a support plate connected to it by a material closure;

Figure 3 is a bottom view of the elastomeric support according to the invention from the arrow III of Figure 2, a

Fig. 4 is a cross-sectional sectional view of an exemplary structure to bridge the dilatation gap between a bridge support structure and a bridge beam;

Fig. 5 shows a

Figure 4 is a top plan view of the arrow V, a

Fig. 6 is a cross-sectional view of the support structure of the elastomeric support according to the invention attached to the central and / or intermediate lamella of the bridge structure along the plane VI-VI shown in Fig. 5;

Figure 7 is a simplified top plan view of another embodiment of the dilatation gap bridging device;

Figure 8 is a cross-sectional view of the bridge structure of Figure 7 taken along the plane VIII-VIII of Figure 7;

Fig. 9 is a cross-sectional view of the bridging device of Fig. 7 of the reduced slot width shown in Fig. 8;

Fig. 10 is a cross-sectional view of the bridge structure of Fig. 7 taken along the X-X plane of Fig. 7;

Fig. 11 is a cross-sectional view of Fig. 10 of the cross-section of Fig. 7 with a reduced gap width;

Figure 12 is a partial cross-sectional view of the bridge device shown in Figure 7 taken along the plane XII-XII of Figure 7;

Figure 13 is a partially sectioned, simplified top plan view of a bridging device according to the present invention with horizontal elastomeric supports;

Fig. 14 is a bridge structure shown in Fig. 13

FIG. 13 is a sectional view taken along the XIV-XIV plane of FIG. 13;

Figure 15 is a simplified sectional view showing a further embodiment of the bridging device of Figure 8;

As an example of the following detailed description, it is to be understood that the various embodiments shown in the drawing and their description are identical or functionally identical with the same reference numerals. Thus, the same reference number in the full description and claims refers to the same structural element or unit, as appropriate. It is also important to note that some of the features and measures that can be learned from the embodiments shown are, in themselves, individually, solutions of the invention.

Figure 1 shows a bridging device 1 of an embodiment of the present invention for bridging the 2 expansion joints 2 between the bridges 4 and brackets 5 of a bridge 6 in a road 3.

The bridging device 1, as shown in FIG. The intermediate lamellar 8 is illustrated in FIG. 1 schematically with dashed lines 9 and elastomeric supports 10 associated with the transmission of the outer lamellas 7 with the bridges 4 of the carriageway 3 and the support structure 5 of the bridge 6. The design and preferred exemplary embodiments of the support structures 9 and the elastomeric supports 10 are described below with reference to the individual figures.

In some cases, as shown in Figure 1, the dilation gap 2 crosses the roadway 3 at a right angle, i.e. at a 90 ° angle. If the lamellas 7, 8 are inclined at an angle to the longitudinal direction of the road 3, ak5

EN 223 212 ΒΙ when a vehicle passes from the two expansion joints not only vertically but also horizontally and rain in the middle lamella 8 in the longitudinal direction of the force exerted is supporting nine designs. In this case, the support 9 must also be capable of exerting a load in the longitudinal direction of the intermediate lamina 8 in addition to the vertical thrust. For example, as shown in Figure 1, the dilatation gap 2 and the placement of the intermediate lamellar 3 underneath the slope of the roadway 3 may be provided in the case of the outlet or curved track 3 of the hill 11 and the tunnel 12, where the arrangement of the dilatation gap 2 is arranged. to fit the natural environment.

Figures 2 and 3 show a first exemplary elastomeric support 10 and support 9 according to the invention. The elastomeric support 10 comprises a bearing plate 13, an elastomeric support 14, and a connecting plate 15. The elastomeric support body 14 comprises elastomeric layers 18 at least partially separated from each other by reinforcing inserts 16 in the direction of the main load 16 of the elastomeric support 10, the thickness of which is only 1% and 20% of the perpendicular width 20, preferably 2 mm and 10 mm. between. The width of the reinforcing inserts 17 is smaller than the width of the elastomeric support body 14, so that the reinforcing inserts 17 are completely surrounded by the elastomeric support 14 and embedded from all sides. The reinforcing pads 17 divide the elastomeric support 14 onto a plurality of elastomeric layers 18 such that the height of the reinforcing pads 17 is less than the thickness of the elastomeric layers 18 of the elastomeric support body 14. The elastomeric layers 18 between the reinforcing inserts 17 are very flat relative to their thickness 23 to have a high stiffness in the vertical direction and small in the horizontal direction. Thus, the elastomeric support 10 can only absorb significant vertical forces acting on it, with little deformation.

The elastomeric support body 14 may preferably comprise elastomers, natural rubbers, elastomeric polychloroprene or ethylene-propylene thermopolymers. These thermopolymers are chemical resistant and resistant to weather and ozone as well as aging. Suitable elastomers include natural caoutchoucs, as the natural rubber retains its elasticity even at normal temperatures. Thus a very good load-bearing capacity can be achieved at horizontal loads. It has been found to be advantageous if the elastomeric layers 18 between the elastomer, in particular the reinforcing pads 17, have a Shore hardness between 50 Shore A and 90 Shore A, preferably between 65 Shore A and 70 Shore A values. Such a design can take up more vertical force than the spring elements used so far.

Due to the structural material of the elastomeric support body 14 of the elastomeric support 10 of the present invention, the support plate 13 can be spun on the elastomeric support 14, and the connecting plate 15 can be vulcanized into the elastomeric support 14. Thereby, the increased strength of the structure and the supporting plate 13 and / or the connecting plate 15 can be achieved, since there is no need for additional aids for fixing them on the elastomer support 14. Furthermore, by selecting the structural material of the elastomeric support 14 and the width and thickness of the elastomeric layers 18, the elastomeric layers 18 may have a greater stiffness in the direction of the longitudinal axis 24 than in the direction perpendicular thereto.

It has been briefly mentioned above that the elastomeric support 14 is embedded with reinforcement 17, whereby the elastomeric support 10 has increased stiffness against the loads acting in the longitudinal axis 24. The reinforcing pads 17 may be made of fabrics, such as, for example, textile fabrics, crocheted fabrics, meshes, grids, veils, but may also be metal fibers, ceramic fibers, plastic fibers or fibers, or mixtures thereof. The width of the reinforcing inserts 17 is twice the width of the spacer 25 at the width of the elastomeric support 21, whereby the reinforcing inserts 17 are fully embedded in the material of the elastomeric support body 14. If the reinforcing inserts 17 are made of metallic structural materials, the embedding of the reinforcing inserts 17 has a particular advantage as the reinforcing inserts 17 cannot come into contact with the liquids in the environment to avoid corrosion damaging the reinforcing inserts. The reinforcing inserts 17 are preferably located concentricly or centrally with respect to the longitudinal axis 24 of the elastomeric support body.

Due to the design of the elastomeric support 10 and its elastomeric support body 14 according to the invention, there is a surprising advantage that even in the case of a large vertical load on the longitudinal axis 24 of the elastomeric support 10, there is a slight deformation, i.e. a small volume reduction, thus having a low structural height. a good load bearing capacity can also be achieved. At the same time, however, the elasticity perpendicular to the longitudinal axis 24 is satisfactory. The cross-section of the elastomeric support body 14 is dimensioned so that the intermediate lamellae 8 is also supported against the vertical loads exerted by the transverse load on the longitudinal axis 24 and the lateral extension of the elastomeric support 14.

The elastomeric support 10 or the elastomeric support 14 may be shaped in any direction in the load direction, for example rectangular, square or circular. The circular cross-sectional design is advantageous because the deflection resistance is the same in the case of horizontal deformation regardless of the direction of movement.

The elastomeric support 14 on the front surfaces parallel to the reinforcing pads 17 is connected to an embedded or otherwise affixed support plate 13 and / or a connecting plate made of metal, plastic or other suitable compound material. The support plate 13 is preferably attached to one of the front faces 26 of the elastomeric support 14 by a vulcanized bond. The bearing plate 13 has a length 27 and a width 28, and the length of the support plate 13 is at least as large as the elastomeric support body 14 between the bearing plate 13 and the connecting plate 15.

EN 223 212 B1 is the height perpendicular to the reinforcement inserts. Since the supporting plate 13 is designed to extend beyond the cross-sectional profile of the elastomeric support body 14, the transition region between the elastomeric support body 14 and the supporting plate 13 may be provided with a rounded thickening 29 of the cross sectional section of the elastomeric support body 14 in this region, which reduces the cross-sectional profile of the elastomeric support body. the stress-induced stresses in the transition region, and thus the risk of separation of the elastomeric support 14 by the action of the vibrations that occur.

At the end of the elastomeric body 14 opposite the support plate 13, the connecting plate 15 is connected, preferably vulcanized into the elastomeric support 14, so that the connecting plate 15 is completely embedded in the material of the elastomeric support body 14. It is essential that the lower side 30 of the connecting plate 15 is flush with the front face 31 of the elastomeric support 14.

The support plate 13 on the front surfaces 26,31 of the elastomeric support 14 parallel to the reinforcing pads 17 includes orifices 37, 33, 34, 35 and 36 for engaging and / or adjusting members, in particular screws 38, which are preferably formed as through bores and preferably with 39 threads. Preferably, at least two holes in the supporting plate 13 and in the connecting plate 15 are arranged in parallel with the longitudinal symmetry axis 24, as this can prevent both the twisting of the elastomeric support 10 and the loosening of the screws during the vibration stress during operation.

The screw connection of the bearing plate 13 and the connecting plate 15 is preferably accomplished by means of conical recessed head screws, since the horizontal vibration stress caused by the passage of the vehicles due to the passage and braking of the vehicles is between the screw head and the holes 32,33,34, 35 and 36. Due to the small displacements at the contact surface, the friction factor is inevitably reduced. The use of tapered recessed head screws increases the contact area and improves bonding safety. In the case of other screws in which the contact surface between the screw head and the holes 32, 33, 34, 35 and 36 in the engaging plate 15 and the bearing plate 13 is located in the horizontal plane, said movements cause the screw connections to be loosely loosened due to the reduction of the friction coefficient. It would result.

The dimensions, in particular the thickness, of the bearing plate 13 are chosen such that, when the bearing plate 13 is welded to a further structural part, proper heat dissipation is obtained through the bearing plate 13 without overheating the material of the elastomer support body 14 during welding.

Refer to 4-6. 2 to 3 illustrate a preferred exemplary jumper 1 for bridging a dilation gap 2. As can be seen, the outer blades 7 are formed as wall support sections 41 and are held in the building parts 43 and the support structure 5 of the bridge 6 and the anchoring elements 42 embedded in the bridge block 4. Between the wall support sections 41, the intermediate lamellar 8 is located centrally, which is one of the shims 4-6. 6 and 6, the elastic support 10 is supported on a support structure 44, which is formed as a support member 45. The support member 45 is formed as a cross-sectional section 46 of a cross-section of the elastomeric support 15 for receiving the connecting plate 15.

The structural member 46 is welded to the wall support sections 41 along the surface facing the side surfaces 47 and is thus securely secured to the wall support section 41. Thus, the intermediate lamella 8 rests securely on the elastomer support 10. With such a solution, a preferred support 48 is provided for the intermediate lamellas 8 to bridge the dilation gap 2 between the bracket 5 of the bridge 6 and the bracket 4 with at least one intermediate lamellas 8 supported on elastomeric supports 10 and support elements 45. This resilience is made possible by the intermediate lamina 8 being securely connected through the elastomeric support 10 and the support element 45 welded to the wall support section 41, since the retaining plate 13 is attached to the intermediate lamina 8 and the engaging plate 15 is bonded to the bonding member 37. and / or via adjusting elements or screws 38 to support member 45.

Fig. 4 shows that the support plate 13 and the connecting plate 15 are concentric with each other in the neutral rest position of the intermediate lamina 8 and the longitudinal axis 49 of the intermediate lamina 8 coincides with the longitudinal axis 24 of the elastomeric support. It will also be appreciated that the surface 50 of the supporting plate 13 and the surface of the connecting plate 15 are parallel to the surface portion 52 of the intermediate blade 8, and the surfaces 50, 51 of the bearing plate 13 and the connecting plate 13 of the elastomeric support 10 are perpendicular to the longitudinal axis 49 of the intermediate blade 8.

As briefly discussed above, the wall support sections 41, to which the support elements 45 are preferably welded, hold the reinforcing inserts 53 embedded in the wall support sections 41 in the building portion 43. The fixing of the wall support sections 41 to the building parts 43 is, of course, provided by any other mounting means, such as welding, screwing, etc. possible. The outer surface 54 of the wall support section 41 rests on the outer surface 55 of the building parts 43 and is molded into the building parts 43, thereby supporting the support elements 45 which are welded to the side of the wall support sections 41, which are optimally supported.

The support 9 may also be such that the longitudinal axis 24 of the elastomeric support 10 in the direction of the main load 16 of the arrow 16 is parallel and overlapping with the longitudinal axis 49 of the intermediate blade 8, and the elastomeric support 10 via a retaining plate 13 to a further intermediate blade 8, and a further intermediate lamella 7 with the connecting plate 15

HU 223 212 Bl ra or a support member 45 rests on the wall support section 41.

The structure of the parts connecting the support structure 44 and the elastomeric support to the building parts 43 is such that it is sufficient to accommodate the space available under the intermediate lamellas 8 of the bridge structure 1 in the pathway and, unlike the known and widespread systems, the wall support 41 is not required. sections. A special advantage of this solution is that it allows the entire road transition to be built only after the final construction of the building parts 43 and after the bridge 6 and the 3 carriageways have been constructed. Thus, the road portions 52 of the intermediate blades 8 can be well aligned with the inclination and height of the road 3.

Fig. 5 is a top plan view of an exemplary jumper 1 for bridging the dilation gap 2 in the roadway 3 according to the invention. It can be seen that the support members 44, which consist of a support element 45 welded to a wall support section 41 and an elastomeric support 10, are arranged alternately in a mirror-like arrangement on the longitudinal center axis 57 of the expansion joint 2 on a wall support section 41 and an additional wall support section 41 spaced therefrom. In order to ensure a smooth transfer of the load between the intermediate lamellas 8 and the elastomeric support 10, at least two or two of the support structures 44 must be disposed between the building parts 43, thereby ensuring an even expansion and narrowing of the dilation gap 2. The distance 56 between the support structures 44 in the longitudinal direction of the intermediate lamina 8 corresponds to a support 58, and this support 58 between the two elastomeric supports 10 supporting the intermediate lamella 8 must be smaller than the periodic interval of the intervening lamellas 8, and less than the intermediate distance. 8 time intervals of the operating frequency on the lamellae.

Such a design of the elastomeric supports A10, and due to the coupling of each pair of elastomeric supports 10, to the intermediate lamellas 8 and to the wall support sections 41, result in alternating compression loads in the direction of movement opposite the longitudinal direction of the lamellae 8. The elastomeric supports 10 are located below the intermediate lamellae 8 and are attached to the support plate 13, while the elastomeric support 15's connecting plate 15 is supported by a support member 45 on the wall support section 41.

If the distance 56 is too large or the support member 58 is too large, a self-oscillation may occur, which is superimposed on the jitter frequency, and fatigue fracture may occur when the support structure 44 and the elastomeric support 10 are used for a longer period of time. Therefore, the support member 58 between the two elastomeric supports 10 is preferably selected to be less than 2 meters, preferably 0.7 to 1.3 m.

A further advantage of the support 48 is that it can be retrofitted into any existing bridging device. This prevents fatigue breakage of existing 1 bridges. If the support means 58 is too large between the elastomeric supports 10, then after the stress loads, the after-vibrations reducing the life of the intermediate lamellas 8 can occur, and if no vibration damping measures are incorporated, the excitation frequencies can dangerously approach the frequencies. The retrofitting of the elastomeric supports 10 can be carried out independently of the structure construction of the existing bridging device 1, so that it can be carried out at any time without disturbing the building parts 43 and substantially restricting the traffic.

Fig. 6 shows further details of the support structure 44 and support element 45 of an elastomeric support 10. The support member 45 is made of a metal part having a cross section U, which is preferably attached to the respective wall support section 41 by welding. The elastomeric support 10 is in the region of a forehead end 59 attached to a base strap 60 of the U-shaped cross-member 45. The connection itself may be carried out with any possible fastening means suitable for this application, preferably by means of fastening and / or adjusting members 37 such as screws. The fastening is achieved by attaching to the bore 34, 36 of the connecting plate 15, which is superimposed on the elastomeric support 14, and / or by means of screws 37, which are screwed into the holes 61 of the support element 45 which are aligned with the holes 15 of the connecting plate 15. . Thus, the fastening linkage is provided by two binder / adjusting members 37 spaced apart from each other in the longitudinal direction of the lamella, and by using two such elements it is prevented from being loosened or rotated as a result of the vibration stress in the normal operation of the elastomeric support.

The support plate 13, which is vulcanized onto the elastomeric support 14, is secured in a similar manner. The fastening and / or adjusting members 37 are inserted into the holes 32, 33 of the support plate 13 and screwed into the receiving holes 62 of the central ridge 63 of the intermediate blade 8. These receiving openings 62 are preferably formed as sack holes 64. Due to the arrangement of the receiving apertures 62 on the intermediate lamellar 62 in the region of the central ridge 63, the lower concentration of the intermediate lamella 8, in particular its spinal plate, reduces the stress concentration.

The fastening of the elastomeric support 10 on the intermediate lamellar 8 is accomplished by the receiving apertures 62 for the binding and / or adjusting members 37 in a cross-sectional area partially overlapping the lower side of the intermediate blade 8 facing the elastomeric support 10 through the central ridge 63. are arranged. It follows that the two bonding and / or adjusting elements passing through the supporting plate 13 on the elastomeric support 10 are connected to the intermediate lamellar 8 in the region of the central ridge 63 or the lower side of the central ridge 63.

The 7-12. 2, the dilatation gap 2 located in the roadway 3 is a preferred exemplary jumper 1;

The structure of FIG. 223 212 B1 is illustrated by two intermediate lamellas 65 and a central lamella 66 disposed between two wall support sections 41. The figures also show the support structures 9 for the intermediate lamellas 65 and the central blade 66. The two supports 9 are also spaced apart from the support means 58 according to the invention, which is less than 2 meters, preferably 0.7 m to 1.3 m. One of the support 9 is to support and load the two intermediate lamellas 65, while the other support 9 is used to support and load the central blade 66. The support 9 of the intermediate lamellas 65 is formed as a support 9 in FIG. 6, and is therefore omitted from the detailed description thereof in the light of the foregoing detailed description.

The other support 9 for the central blade 66 is configured as follows. On the underside of the intermediate lamellas 65, there are retaining portions 67 which are rigidly attached to the lower portion of the intermediate lamellae 65 by a welded joint, and one longitudinal axis of the retaining section 67 is aligned with or aligned with the central axis 68 extending in the longitudinal direction of the intermediate lamella 65 . A cross member 69 is supported in the support section 67 through a elastomeric support 10, which is supported on the support section 67 and is perpendicular to the longitudinal center axis 57. The second intermediate blade 65 also rests on an elastomeric support 10 on the support section 67. The support 58 according to the invention between two elastomeric supports 10 is also less than 2 meters, preferably 0.7 m to 1.3 m.

In the region of the central blade 66, the cross member 69 is rigidly secured through a contact surface 70, preferably welded to the central blade 66, allowing the central blade 66 to take up a vertical load through the elastomeric supports 10 inserted into the retaining sections 67.

In order to achieve even load-bearing loading perpendicular to the longitudinal center axis 57, it is advantageous to use two or two or two times the length of the intermediate blades 65 and the middle blade 66 of the various support members 9. Due to this arrangement of the support 9, the parallelity of the gap width 71 of the dilatation gap 2 is maintained between the intermediate lamellas 65 and the central blade 66.

Figures 8 and 9 illustrate the connection of the intermediate lamellae 65 to the wall support section 41 via a support member 45. It is important to emphasize that the bridge bar 4 is always formed as a stationary building part 43, and the support structure 5 of the bridge 6 is a load-bearing construction part 43 which, as a result of the temperature fluctuations, performs the displacements of the double arrow 72. The intermediate lamellas 65, the central blade 66 and the elastomeric supports 10 are arranged so that the longitudinal axes 24 of the elastomeric supports 10 and the intermediate blades 65 and the longitudinal axes 49 of the central blade 66 are parallel or overlapping with one another.

In the case of the bridging device 1, at this position of the intermediate lamellas 65 and the central lamella 66, the maximum load on the elastomeric supports 10 with reinforcing inserts 17 is in the main load direction indicated by the arrow 16. FIG. This is due to the fact that in this position of the elastomeric supports 10, the width of the elastomeric support 14 is equal to the width 73 of the support surface 74 perpendicular to the longitudinal axis 24 of the elastomeric support. In this position, the cross-section of the support surface 74 corresponds to the cross-section of the elastomeric support body 14, and thus is able to absorb the maximum stress in the main load direction indicated by the arrow 16. In this case, the dilatation gap 2 has a slot width 71, and due to the uniform load-bearing of the support structures 9, the central lamellas 66 and the intermediate lamellas 65 are each spaced with the same size 75 lamella spacing.

In order to illustrate the deformation of the elastomeric support 10, the deformation of the individual lamellae under load, or their displacement under load, is described below with reference to Fig. 8.

The intermediate lamellae 66 and the central lamellas 65 are positioned at a temperature corresponding to the design temperature with a predetermined lamellar space 75. The lamellar space 75 is dimensioned so that the maximum deformation of the elastomeric supports 10 in the longitudinal direction, i.e. in the radial direction, is large enough to compensate for the difference in thermal expansion between the maximum temperature and the minimum temperature of the support structure 5 opposite the bridge piece. This means that the sum of the lamellar spaces 75 must be dimensioned so that, at maximum elongation of the support structure 5, assuming that the same support structures 9 are present at both ends of the support structure 5, the lamellar spaces must be at least equal to or greater than half the maximum total length change of the support structure 5 .

This also applies to the reduction of the overall length of the support structure 5 at extremely low temperatures, where the dimensioning is usually taken into account to keep the position shown in Figure 8 at the average annual temperature. In contrast, Fig. 9 shows the position of each lamella at a temperature higher than the average temperature, i.e. the elongation of the support 5. If the support structure 5 of the bridge 6 is shortened due to a lower temperature than the average temperature, then the elastomeric supports 10 are in a mirror-like position relative to the longitudinal axis 49 of the central blade 66, as shown in Figure 9.

For example, if a wheel 102 of a motor vehicle passes through a support 9, the support 9 and its elastomer support 10 must, in addition to any deflections due to the change in the slot 75, take up the load in the same direction of direction as the direction of the lower arrow, and at the same time attenuate it. to minimize the impact of the bracket 4 and the strut or swinging action on the bracket 5.

EN 223 212 B1

For the sake of clarity, only one wheel 102 is illustrated in the figure and its diameter is chosen so that the wheel can only sit up between the middle and intermediate blades 66, 65. As a result of the vertical load transmitted by the wheel 102, the elastomer 10 receives a support load and squeezes slightly in the direction of the longitudinal axis 49 relative to the adjacent central blade 66 and the wall support section 41. The load is wavy as the wheel 102 slowly rests on the intermediate blade 65, while a continuously increasing portion of the vertical load is taken up by the central blade 66, thereby reducing the load on the wall support section 41 to the same extent. If the full vertical load in the direction of the arrow 16 is already taken up by the intermediate blade 65 and the wheel 102 continues to rotate in the direction of the central blade 66, the wheel 102 will then partially prop up to the central blade 66 such that this central blade 66 is supported elastomeric supports are increasingly compressed as a result of the continuously increasing load until the middle blade 66 and the intermediate blade 65 receive roughly the same load at the same level of lowering. If the vertical main load corresponding to the direction of the arrow 16 continues to increase on the central blade 66, this will be further lowered as it fully rises to its resting position drawn by a continuous line on the previously loaded intermediate blade 65. The passage of the load, i.e., the roll of the wheel 102, results in the same change in load in the direction of the bridge bar 4 between the central blade 66 and the further intermediate blade 65.

At the same time, due to the radial deformation of the elastomeric supports 10, there is a damping effect between the support structure 5 and the bracket 4, which prevents the vibration of the bracket 5 from passing over the bridle 4. Such vibrations are caused by traffic loads, passing vehicles, etc. and these loads are reduced by the radial deformation of the elastomeric supports 10.

Here it should be taken into account that the vertical forces are derivatized only in a narrow range, along the length of the middle 66 and intermediate blades 8,65. This means that the instantaneous vertical load in a narrow portion of the length of these lamellae extends as longitudinal vibration in the longitudinal direction of the lamellae through the further elastomeric supports. Since the main loads are known, such as, for example, the bandwidth and axle spacing of trucks, high-speed passenger cars or trailer assemblies, care must be taken to ensure that the distances between each elastomeric support 10 are between the middle blades 66 and the intermediate blades 8,65. dimensioned in the longitudinal direction so that, in the case of the usual vibration characteristics, these intermediate intermediate lamellas 66 and 8, 65 cannot enter the resonance state.

The formation of resonance is prevented, on the one hand, by the construction of the reinforcing insert 17 of the elastomeric supports 10 on the one hand and by the proper selection of the distance between the support means, i.e. the same lamellae on the same lamellae or on the wall support section 41, on the other. as described above, the distance in question, namely the support 58, is scaled down at the frequency of the vibrations.

Figure 9 shows the position of the elastomeric supports 10 and the lamellas 65, 66 due to the temperature variation in the reduced gap width 71. If the bridge 6 extends in the longitudinal direction due to the rise in temperature, the gap 71 is reduced, since the wall support section 41 attached to the support 5 approaches the wall support section 41 of the bridle 4. Due to this compression of the bridging device 1, the intermediate lamellas 65 and the central lamella 66 are brought closer together, thereby re-aligning 75 lamella spaces of equal size. The same size reduction of the lamellar spaces 75 is made possible by the design and arrangement of the elastomeric supports 10 and the support 9 according to the invention. The central blade 66 is resiliently connected to the intermediate blades 65 by transmitting a cross member 69 as shown in FIG. 10 and an elastomeric support 10 and support section 67. Due to the reduction of the gap width 71, the elastomeric supports 10 are deformed horizontally so that in this state, the longitudinal axis 24 is inclined from an oblique angle to the wall support section 41 and the longitudinal axis 49 of the intermediate lamellas 65. The smaller the gap width 71 of the dilation gap 2 due to the thermal expansion of the support 5, the greater the angle 76 between the longitudinal axis 24 of the elastomeric support 10 and the longitudinal axis 49 of the intermediate blades 65. Such a behavior of the elastomeric support 10 is made possible by its construction according to the invention, since the elastomeric support 10 with reinforcing inserts 17 is capable of carrying a high load in the main load direction of the arrow 16, while having a high degree of flexibility in the horizontal direction to prevent such lateral deformations without breaking or shearing. pick.

Due to horizontal displacement, the width of the supporting surface 74 decreases in the vertical direction due to the displacement of the elastomeric support 10 or its oblique position. It follows that the width of the elastomeric layers 18 and / or the reinforcing inserts 17, measured perpendicular to the longitudinal axis of the elastomeric support 24, must be greater than the maximum allowable displacement between the supporting plates 13 and / or the connecting plates 15 as the elastomeric support 14. the width 21 of the support surface 74 required to accommodate the maximum support load. In addition, there must also be an overlapping surface between the front surfaces of the elastomeric support 14 facing the bearing plates 13 and / or the connecting plates 15. The supporting plates 13 and / or the connecting plates 13 displaced in the plane containing the longitudinal axis 24 overlap each other in the direction parallel to the longitudinal axis 24 and the supporting surface 74, which overlaps with the front surface 14.

EN 223 212 is a cross-sectional view of the maximum load that can be applied to the main load direction of the arrow 16 in the direction of the main load.

The structural height of the elastomeric supports 10 should preferably be kept as low as possible, to avoid the deflection of the elastomeric supports 10 and the deflection of the elastomeric support body 14 with reinforcing inserts. In this geometric state, the structure of the elastomeric support 10 ensures that the remaining support surface 74 will absorb the maximum stress in the main load direction of the arrow 16.

10. and

Figure 11 shows a support 9 for a central blade 66. The cross member 69, which supports the central blade 66, is triangular in side view and has a backbone 77 formed on both sides at the bottom. Thus, in the front view, the cross-sectional profile of the cross-member 69 corresponds to a letter T on a head. The cross member 69 has a contact surface 70 in the support portion of the central blade 66, along which the cross member 69 is preferably attached to the lower side 78 of the central blade 66 by a welded joint. Thus, the central blade 66 is secured by a material closure on the cross member 69, and with the addition of additional elastomeric supports 10 located in the region adjacent the adjacent two lamellas 65 adjacent to one of the support sections 67.

In the ridges 77, the cross member 69 has holes 79 at both ends of the longitudinal axis 49 of the central blade which are aligned with the holes 32, 33 in the bearing plate 13 of the elastomeric supports 10, so that the elastomeric supports 10 can be rigidly attached to the crossbars 80 13 on the supporting plates. This fastening is preferably provided by a screw connection, because it is rigid, but at the same time it is a soluble bond.

The connecting plates 15 of the elastomeric supports 10 are attached to the support sections 67 by means of the fastening and / or adjusting members 37. For a more detailed description of the attachment of elastomeric supports 10 to support section 67, FIG.

It follows from the foregoing that the elastomeric support 10 on the supporting plate 13 in the region of the ridge 77 of the cross member 69 is attached through a support section to the intermediate lamella 65. The elastomeric supports 10 for supporting the central blade 66 are located under the two intermediate lamellas 65 directly adjacent to the central blade 66, perpendicular to the longitudinal axis 49 of the blades.

If, due to the thermal expansion of the bridge structure, the gap width 71 of the dilatation gap is reduced, the elastomeric supports 10 and the elastomeric support bodies 14 will be bent by the horizontal stress acting on the support 9, and in this embodiment the lamella spaces 75 will be reduced equally. Since the different dilatation states of the building portions 43 are provided with the same lamella spaces 75 between each of the central lamellas 66 and the intermediate lamellae, due to the arrangement of the support 9 according to the invention, not only is the vertical load imposed by the passage 1 caused by the passage of the vehicles ensured, but the even distribution of the middle lamella and the intermediate lamellae 65 in the dilatation gap 2 is also present.

It should be noted that the dimensioning elasticity of the elastomeric support 10 can easily be matched to the loads in the various spatial directions, while at the same time the high load on the elastomeric supports 10 can be supported by a small number of elastomeric supports at the central blade 66, even at low loads. intermediate lamellae 65. The deformation characteristic of the elastomeric support 10 in the direction of the longitudinal axis 24 and the main load direction of the arrow 16 is smaller than that perpendicular to the main load direction of the arrow 16, and although the reinforcing inserts of the reinforcing inserts 17 may be used to provide a plurality of reinforcement 17, the elastomer support 10 may be used. despite its precise transverse formability for precise positioning of each lamella.

Fig. 12 shows a support structure 81 in which the cross member 69, which supports the central blade 66, interacts with the intermediate blades 65 by means of a support section 67 with the aid of a reinforcing elastomer support 10.

Preferably, the metal-shaped support section 67 has U-shaped end portions 82 of the legs 82, preferably welded to the lower side 76 of an intermediate blade 65. The two arms 82 are connected by a ridge 84 extending transversely thereto. The corner portions 85 between the ridge 84 and the shank 84 of the retaining section 67 are rounded off by radii 86 that reduce the stress concentration in these ranges. In the backbone 84 there are holes 87, 88 corresponding to the holes 34, 36 of the connecting plate 15 of the elastomeric support 10, through which the connecting plate of the elastomeric support 10 and the elastomeric support 10 is attached to the support section 67 by means of the coupling / adjusting elements 37 being inserted. 84 spine. The elastomeric support 10 in the direction of the forehead surfaces in the elastomeric body 14 and the schematically illustrated reinforcement 17 extends up to the bearing plate 13, which is fully covered by a ridge of the crossbeam 77. The spine 77 is fixed to the retaining plate 13 by means of coupling members 80 through the holes 89,90 and the corresponding holes 32, 33 of the bearing plate 13. As fasteners 80, screws are preferably used, because they can provide a rigid bond, which can, however, be broken down if necessary. The cross member 69 has a spine 91 which is disposed in the direction of the central blade 66 and is secured along a contact surface, preferably welded to the middle blade 66.

The surprising advantage of such a structural arrangement of the support section 67 of the support structure 9 according to the invention is that the retaining section 67 is also designed to provide protection against the breakage of the elastomeric support 10. If the 14 elastomeric support body material is11

Due to a fault in the 222 212 Bl, or due to adverse external effects, the elastomeric support 10 breaks, and the retaining section 67 serves as a nest for the lower side 92 of the cross member 69 and the spine 77 to rest on the upper side 93 of the backbone 84 of the retaining section 67. Thanks to the solution of the support 9 according to the present invention, the breakage of the bridging device 1 is also possible in case of breakage of the elastomeric support 10 until the due maintenance or repair.

13 and 14, another embodiment of the bridging device 1 is shown in a partially sectioned top view or side view. Here, the elastomeric supports 10 are horizontal, i.e. their longitudinal axes 24 are parallel to the central axes 68 of the central blade 66 and the intermediate blade 65. The elastomeric supports 10 are located under the central blade 66 and the intermediate blade 65, and are secured to a support body 94 by means of fastening and / or adjusting members 37, in particular screws 38. The support body 94 is positioned transversely to the longitudinal axis 24 and is welded to the lower side 78 of the central blade 66 or the intermediate blades 65, or formed in one piece with the blades. Preferably, a support plate 13 of a elastomeric support 10 is secured to one of the side surfaces 95 of the support body 94 by screws 38. A support arm 97 is provided on the side surface 96 of the support body 94 facing the side surface 95. The link between the two elastomeric supports 10 extending crosswise to the central axes 68 is provided through this support arm 97. The support arm 97 is preferably made of high strength material, preferably metal. A flange support arm 98 is also coupled to the elastomeric support 10 by means of fastening and / or adjusting elements 37, along with the connecting plate 15 of the elastomeric support 10. The flange support arm 98 extends from the connecting plate 15 of the elastomeric support 10 to the wall support section 41 and is rigidly attached to it by a welded connection. The rigid connection between the flange support arm 98 and the wall support section 41 ensures that the support 9 is secured in the same direction as the longitudinal direction of the road.

At the opposite end of the support body 94, the support arm 97 is also secured to the engaging plate 15 of the elastomeric support 10 next to the central lamellar 66 by means of engaging and / or adjusting members. The arrangement of the support 9 on the next wall support section 41 is based on mirroring the first support 9 on the central axis 68 of the central blade 66 and on a cross axis 99 in the longitudinal direction of the road surface.

This special positioning of the elastomeric supports 10 allows horizontal loads to be applied in the longitudinal direction of the lamellae instead of vertical loads. Thus, a support 9 may be provided in a given bridging device 1 with either only vertical elastomeric supports 10 or only horizontal elastomeric supports 10. Depending on the respective load types, the various support structures can of course be combined with each other.

If the dilatation structure 1 of the roadway 3 is slanted or the dilatation structures are arranged obliquely in the longitudinal direction of the roadway, the direction of travel and the direction of the braking forces are not perpendicular to the lamellae. In such a case, a horizontal load component acting in the longitudinal direction of the lamellae is also produced during the passage and braking of the vehicle. In order to prevent undesirable horizontal displacement of the lamellae, it is advisable to place a spaced elastomeric support 10 somewhere in the middle of the central lamellas 66 and in the intermediate lamella 65. The direction of movement of such elastomeric supports 10 coincides with the direction of movement of the central blade 66 and the intermediate blades 65, and the elastomeric support 14 is subjected to shear deformation by vertical loads.

The bridging device 1 is configured such that the elastomeric supports 10 are positioned below the central lamella 66 and are connected to the intermediate lamellas 65 via a support body 94, a bearing plate 13, and a connecting plate 15 to move them. The elastomeric support 10 relies on a support arm 97 or a flange support arm 98 on the adjacent intermediate blade 65 or the wall support section 41. The elastomeric supports 10 of the central blade 66 are connected to the wall support section 41 via the intermediate blade 65 between the middle blade 66 and the wall support section 41, while the other elastomeric supports 10 are interconnected through an intermediate blade 65 between them and the other wall support sections. for other 41 wall support sections. The elastomeric supports 10 are always disposed in the direction of the central axis 68 of the lamellae between the central blade 66 and the intermediate blade 65 or between the various intermediate blades 65 and the wall support section 41. The distance 100 between the central axes 68 of a central blade 66 and an intermediate blade 65 is the same as the distance 101 between the longitudinal axis 24 of the elastomeric support 10 for the central blade 66 and the longitudinal axis 24 of the elastomeric support 10 for the intermediate blade 65.

Fig. 15 shows an alternative embodiment of the support structure 9 of an intermediate blade 66 and adjacent two intermediate blades 65 relative to the embodiment of Fig. 10, wherein the central blade 66 is not supported by a cross member 69 on the intermediate blades 65 and the wall support 41 is supported. supporting the intermediate lamellas 65 adjacent to the sections a

FIG. In this embodiment, an elastomeric support 10 is also attached to the lower side 78 of the central blade 66 by means of binding / adjusting elements. The elastomeric supports 10 affixed to the central blade 66 are also connected to the base strap 60 of the support member 45 by means of engaging and / or adjusting elements 15.

Preferably, the metal support member 45 is similar to or similar to that shown in FIG. 4, i.e. having a U-shaped cross-section. In order to avoid repetition, reference is made to the detailed description of FIG. 6 in relation to the attachment of the elastomeric supports to the support members 45.

EN 223 212 B1

In this embodiment, the support members 45 are rigidly attached to the lower side 78 of the intermediate blades 65 by means of a welded joint along the front edges 104 of the U-blades toward the intermediate blades 65, and the intermediate blades 65 are supported by elastomeric supports 10 fixed to the support members. The support elements 45 of the intermediate lamellae 65 are attached to the bracket 4 and the wall support sections 41 embedded in the support structure 5, as shown in FIG. 8, preferably by welding.

Due to the support 9 of the elastomeric supports 9 of the present invention, the bridging device 1 of the dilatation gap 2 comprises a plurality of elastomeric supports 10 spaced apart from each other in the longitudinal direction of the lamellae, each having a number of lamellae of at least two or two multiple times. be. As an advantage over the support structures 9 shown in FIG. 8, each of the lamellae comprises 10 elastomeric supports, thereby allowing a greater gap width 71 measured in the longitudinal direction of the roadway at the dilation gap. Due to this advantageous configuration of the bridging device 1, the distribution of the lamellae in the longitudinal direction of the roadway is evenly distributed at larger gap widths 71, thereby ensuring a constant lamellar space between each lamella.

Supporting elements 45 for supporting the central blade 66 relative to the intermediate blades 65, which are configured in the same manner as the support members 45 by which the intermediate blades 65 are supported on the wall support sections 41, reduce the number of structural elements required to assemble the bridge 1, 1 cost of producing and installing the bridging device.

It is essential that each lamella rests on at least two or two multiple plurality of elastomeric supports 10 adjacent to the adjacent lamellae or wall support 41. Furthermore, the elastomeric supports 10 and the support 9 are between the central blade 66 and the intermediate blade 65 either between the various intermediate blades 65, or between the intermediate blade 65 and the wall support section 41, at a distance from each other in the direction of the central axis 68 of the blades. they are arranged alternately. Thanks to this preferred configuration, the lamellae are uniformly distributed in the gap width 71 and the lamellae are arranged in parallel.

Finally, it should be noted that in the above-described embodiments, some structural parts are disproportionately enlarged in order to make the invention more easily understood. In addition, some of the above-described features and measures of each embodiment may, in combination with other features of other embodiments, may form separate embodiments of the invention. Thus, first and foremost, the invention is illustrated in Figures 1-15. 1 and 2, may serve as separate objects of the present invention.

Claims (44)

PATENT CLAIMS Elastomeric support for bridging structures in bridging structures, in particular bridges comprising elastomeric member (s), in bridging structures for bridging gaps in roadways, characterized in that the elastomeric support (10) extends in the main load direction at least partially separated by reinforcing inserts (17). comprising elastomeric layers (18) having a thickness (23) of from 1% to 20% of the width measured perpendicular to the thickness (23), preferably from 2mm to 10mm. Elastomeric support according to claim 1, characterized in that the height (22) of the reinforcing insert (s) (17) is smaller than the thickness (23) of the elastomeric layers (18). 3. An elastomeric support according to claim 1 or 2, characterized in that an elastomeric support body (14) is provided which is attached to the front faces (26, 31) of a particular metal or plastic or compound material on the front faces (26, 31) parallel to the reinforcing inserts (17). connected to a captive receiving plate (13) and / or connecting plate (15). 4. Elastomeric support according to any one of claims 1 to 3, characterized in that the holes (32,33,34,35) for receiving fastening and / or adjusting elements (37), in particular screws (38) in the bearing plate (13) and the connecting plate (15), 36) are designed. 5. Elastomeric support according to any one of claims 1 to 3, characterized in that the connecting plate (15) and / or a reinforcing insert (17) is surrounded by the elastomeric material constituting the elastomeric layers (18) in an embedding manner. 6. Elastomeric support according to any one of claims 1 to 3, characterized in that one of the connecting plates (15) is formed as a supporting plate (13) extending beyond the outer circumference of the part containing the reinforcing insert (17) and the protruding portions of the supporting plate (13) intervening with one of the elastomeric layers (18). 7. Elastomeric support according to any one of claims 1 to 3, characterized in that the reinforcing inserts (17) are made of any fiber or fiber made of textile material, in particular fabric, crocheted fabric, netting, lattice, veil or other, preferably metal, ceramic, natural or plastic or any mixture thereof. are produced. 8. Elastomeric support according to any one of claims 1 to 3, characterized in that the reinforcing inserts (17) are concentric or centrally located on a longitudinal axis (24). 9. Elastomeric support according to any one of claims 1 to 3, characterized in that the stiffness of the elastomeric layers (18) measured in the longitudinal axis (24) is greater than the stiffness measured in the direction perpendicular thereto. 10. Elastomeric support according to any one of claims 1 to 3, characterized in that the elastomeric material is made of rubber, in particular natural rubber. 11. Elastomeric support according to any one of claims 1 to 3, characterized in that the elastomeric material has a Shore hardness, in particular reinforcing pads The elastomeric layers (18) between B1 (B1) 211 have a Shore hardness of between 50 Shore A and 90 Shore A, preferably between 65 Shore A and 70 Shore A. 12. Elastomeric support according to any one of claims 1 to 4, characterized in that the elastomeric layer (18) is vulcanized on a supporting plate (13) or a connecting plate (15) and / or a reinforcing insert (17). 13. Elastomeric support according to any one of claims 1 to 3, characterized in that a bearing plate (13) and / or a connecting plate (15) and / or a reinforcing insert (17) are cured in the elastomeric layer (18). 14. Elastomeric support according to any one of claims 1 to 3, characterized in that the size of the connecting plate (15) corresponds to the structural height between the supporting plate (13) and / or the connecting plate (15) perpendicular to the reinforcing elements (17). 15. Elastomeric support according to any one of claims 1 to 3, characterized in that the distance between the weight of the supporting plate (13) and the elastomeric support body (14) and a welding area is selected such that during the welding operation the temperature of the supporting plate (13) of elastomeric layers (18) up to 120 ° C. 16. Elastomeric support according to any one of claims 1 to 3, characterized in that in the abutment plate (13) and / or in the connecting plate (13,15) there are a plurality of holes (32, 33, in particular two threads) perpendicular to the reinforcements (17). 34, 35, 36). 17. Elastomeric support according to any one of claims 1 to 5, characterized in that in the area of the bearing plate (13) and the connecting plate (15), a plurality of threads (39), preferably threaded (39), are provided for fastening and / or adjusting elements (37). a hole (32, 33, 34, 35, 36) extending perpendicular to the reinforcing elements (17). 18. A support structure for connecting at least one lamella and / or the additional lamellae therein with elastic material elastic structural members in bridging structures between two structural members, particularly in bridges, comprising: 1-17 as elements. At least one elastomeric support (10) according to any one of claims 1 to 4. Support structure according to Claim 18, characterized in that the central lamella (66) and / or additional intermediate lamellae (8, 65) through the elastomeric support (10) to a wall support section (41) and / or directly to the building element (41). 43) or connected to a support element (45) fixed to an intermediate lamella (65). Support structure according to Claim 18 or 19, characterized in that each lamella is connected to the adjacent lamellae or wall support section (41) via at least two or two multiple of any number of elastomeric supports (10). 21. Support structure according to any one of claims 1 to 3, characterized in that each lamella is assigned two or two arbitrary multiple elastomeric supports (10), and each of the two elastomeric supports (10) which are paired with one another is positioned on the middle lamella (66) and / or connected to the lamellae (8, 65) and to the wall support sections (41), such that the elastomeric supports (10) are subjected to alternating compressive loads in opposite directions of displacement in the longitudinal direction of the lamellae. 22. A 18-21. Support structure according to any one of claims 1 to 3, characterized in that the connecting plate (15) and the supporting plate (13) are concentric with respect to each other in the neutral resting position of the lamellae. 23. A 18-22. Support structure according to any one of claims 1 to 3, characterized in that the surfaces of the connecting plate (15) and / or the supporting plate (13) of the elastomeric support (10) are parallel to the road surface surfaces (52) of the lamellae. 24. A 18-23. Support structure according to any one of claims 1 to 3, characterized in that the surface of the connecting plate (15) and / or the bearing plate (13) of the elastomeric supports (10) is perpendicular to the longitudinal axis (49) of the lamellae. 25. A 18-24. Support structure according to any one of claims 1 to 4, characterized in that the wall support section (41) and / or the support element (45) is fastened to the reinforcements (53) anchored in the building part (43) by means of fasteners such as welding seams or screws. 26. A 18-25. Support structure according to any one of claims 1 to 4, characterized in that the longitudinal axis (24) of the elastomeric support (10) in the main load direction according to the arrow (16) is parallel and planarly overlapping the longitudinal axis (49) of the central and / or intermediate lamella (8), and is connected via an abutment plate (13) to a central and / or intermediate lamella (8) and through a connecting plate (15) to an additional lamella or to a support element (45) of a wall support section (41). 27. A 18-26. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) supporting the central lamella (66) and / or the intermediate lamella (8, 65) are longitudinally oriented in the middle lamina (66) and / or the intermediate lamellae (8, 65). The support means (58) of the present invention is less than a period of excitation frequency-induced vibration acting on the central lamella (66) and / or the intermediate lamellae (8, 65). 28. A 18-27. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) for supporting the central lamella (66) and / or the intermediate lamella (8, 65) extend in the longitudinal direction of the central lamella (66) and / or intermediate lamellae (8, 65). its support (58) is less than twice the excitation frequency of the excitation frequency applied to the central fins (66) and / or the intermediate fins (8, 65), Between the B1 and the two elastomeric supports (10), a damping device, preferably formed as an additional elastomeric support (10), preferably formed by an elastomeric support (10), is inserted. 29. A 18-28. Support structure according to any one of claims 1 to 4, characterized in that the support (58) between two elastomeric supports (10) or between an elastomeric support (10) and a damping device is less than 2 meters, preferably less than 1.2 meters. 30. A 18-29. Support structure according to any one of claims 1 to 4, characterized in that the support between two elastomeric supports (10) and one elastomeric support (10) and a damping device is between 1.3 meters and 0.7 meters. 31. A 18-30. Support structure according to any one of Claims 1 to 4, characterized in that the support element (45) of the wall support section (41) lies on a side surface (47) of the building part (43). 32. A 18-31. Support structure according to any one of claims 1 to 4, characterized in that the wall support section (41) is supported by a one-piece anchoring element (42), which extends into or is embedded in the building part (43). 33. A 18-32. Support structure according to any one of claims 1 to 5, characterized in that the support element (45) is formed by at least one U-section which is connected to the elastomeric support (10) and the sidewalls (47) to the wall support section (41). 34. A 18-33. Support structure according to any one of claims 1 to 3, characterized in that at least one receiving opening (62) is provided in one of the central ridge (63) of the intermediate lamella (8) for the fastening and / or adjusting element (37) of the elastomeric support (10). 35. A 18-34. Support according to any one of claims 1 to 4, characterized in that the receiving apertures (62) for the fastening and / or adjusting members (37) are a central lamella (66) and / or an intermediate lamella (8, 65), an elastomeric support (10). facing the middle ridge (63), but at least partially overlapping in cross-sectional area. 36. A 18-35. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric support (10) has two fastening / or adjusting elements (37) passing through the bearing plate (13) in the region of the middle ridge (63) or a middle ridge (78). 63) connected in the overlapping region to the central lamella (66) and / or to the intermediate lamella (8,65). 37. A 18-36. Support structure according to any one of claims 1 to 3, characterized in that the width (21) of the elastomeric support body (14) and / or the reinforcing insert (17) perpendicular to the longitudinal axis (24) is in the plane containing the longitudinal axis (24). or with a maximum displacement dimension between the connecting plate (15) greater than the width (21) of the support surface (74) of the elastomeric support body (14) required to absorb the maximum support load. 38. A 18-37. Support structure according to any one of claims 1 to 3, characterized in that the overlapping surface of the elastomeric support body (14) between the abutment plates (13) and / or the end faces (26, 31) facing the connection plates (15) and the abutment plate (74) (13) and / or during the displacement of the connecting plates (15) in a plane containing the longitudinal axis (24) of the elastomeric support body (14), the cross-section of the elastomeric support body (14) sized to the maximum allowable load. 39. A 18-38. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) which support one central lamella (66) directly adjacent to the two intermediate lamellae (65) are arranged in a plane perpendicular to the center axis (68) of the lamellae. 40. A 18-39. Supporting arrangement according to any one of claims 1 to 3, characterized in that a central lamella (66) is inserted through an elastomeric support (10) or an elastomeric support (10) through intermediate transverse supports (69) to intermediate lamellae arranged parallel to the central lamella (66). (65) connected. 41. A 18-40. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) are located below the middle lamella (66) and a support body (94) rigidly connected to the intermediate lamella (65), the abutment plate (13) and / or are connected via the connecting plate (15), while the other abutment plate (13) of the elastomeric support (10) is connected via a support arm (97) and / or a flange support arm (98) to the adjacent intermediate lamella (65) or center lamella (65). 66) or connected to a wall support section (41). 42. A 18-41. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) between the central lamella (66) and an intermediate lamella (65) or between the various intermediate lamellae (65) or between the intermediate lamella (65) and the wall support section (10). 41) are spaced apart and alternately in the direction of the central axis (68) of the fins. 43. A 18-42. Support structure according to any one of claims 1 to 3, characterized in that the central lamella (66) is fastened to the cross-member (69) by force and / or form-fitting connection and by additional elastomeric supports (10) in support sections (67) connected to the intermediate lamellae (65). it is connected on both sides by adjacent intermediate lamellae (65). 44. A 18-43. Support structure according to any one of claims 1 to 3, characterized in that the elastomeric supports (10) are connected to the wall support section (41) from a centrally located central lamella (66) through intermediate lamellae (65) between them and the wall support section (41). the other elastomeric supports (10) being connected to the additional wall supporting section (41) via intermediate lamellae (65) disposed between them and the further wall support section (41).