JP4236923B2 - Toothed plate arrangement for devices that bridge expansion joints - Google Patents

Description

[0001]
The present invention relates to a toothed plate arrangement for a device for bridging an expansion joint to a bridge or similar structure having a gap between the bridge and the foundation. Furthermore, the present invention relates to a method for fixing a toothed plate arrangement as described above on a bridging device and a bridging device containing the toothed plate arrangement according to the invention.
[0002]
Bridge structures are partially exposed to extreme expansion and contraction due to large temperature changes that appear in nature. The telescopic path appearing in that case is not dangerous on the one hand and on the other hand is cross-linked by a telescopic joint cross-linking structure in order to allow a comfortable passage of the telescopic joint. In the expansion joint bridge structure that is frequently built in the past 30 years with an expansion path of 60 to 80 mm or more on a road bridge, all the bridge expansion paths are divided into independent gaps with a maximum width of 80 mm. Road vehicles must pass through this gap. A gap width of 80 mm is regarded as not excessive, which corresponds to the comfort of the vehicle and the noise generated during rolling.
[0003]
Increased road traffic, buildings built to the vicinity of the bridge, large bridges newly established in residential and recreational areas, and increased public sensitivity have created a need for low noise telescopic joint structures.
[0004]
It has been found that when a car tire collides with the corners of a steel beam (medium beam or lamella) that divides the total expansion gap obliquely in the direction of travel into several small gaps, mainly impact noise is generated. The loudest noise is the impact noise when the angle between the expansion joint and the traveling direction is 90 °. The greater the 90 ° angular displacement, the smaller the noise.
[0005]
In known devices, for example the structure disclosed in German Offenlegungsschrift 4 433 909, the independent gap gap and the steel intermediate girders are covered with bolted steel plates. This steel plate can be formed with a comb-like or finger-like longitudinal side. The steel plate is bolted to a central lamella and placed on the adjacent central lamella or edge lamella.
[0006]
In the known device, a protective plate is detachably connected to the spar with bolts so that the underlying elastic packing band can be replaced after being attached or damaged. This bolt connection is affected by rocking, striking and vibration by the vehicle passing over it. As a result, there is a risk that the bolted part will loosen or come off. The mounting of the protective plate on the adjacent girder may cause rattling noise or impact noise due to the action of rocking, structure movement and tire force.
[0007]
As is apparent from German Offenlegungsschrift 4 433 909, the upper plate covers the adjacent gap edge steel or lamella so that the packing band cannot reach from above. The same applies to the case where the lamella moves away. Therefore, when the packing band is attached or replaced, the plate bolts must first be removed, the packing band inserted, and then the plate must be bolted again. For this bolt connection, the conventional bridging structure requires that the lamella has a hole for fixing the plate, which may cause a reduction in durability of the lamella subjected to the cross-sectional weakness and the bending alternating load. Therefore, it cannot be re-equipped with the above structure. Alternative fixation of the plate, for example by welding or joining, makes it difficult to reach the packing band. For removal and attachment of the packing band, the weld seam or joint must be separated so that the plate can be removed. A new weld or joint must then be made.
[0008]
In particular, in the case of the special structure of German Patent Publication No. 4433909, the transverse beam to which the lamella is fixed is supported under the edge beam on two bearings, but at the same time is fixed to the upper side of the lamella. Since the plate structure is placed on the edge steel, there is a problem that the girders of the known structure are technically difficult. Inevitable tolerances and structure shaping can result in the lower or upper girders becoming inoperable. When the plate is not placed on the gap edge steel in such a case, the plate falls or bends when passing by the vehicle with the plate width, and the plate is hit and noise is generated. In particular, the bolting may come off.
[0009]
In other cases, when the cross beam deviates from that beam, the normal force that the transition structure must absorb will only be absorbed through the top of the plate.
[0010]
In order to solve the above-mentioned problems, from German Offenlegungsschrift 197070531, for a telescopic joint, a plate is provided on the upper side of a lamella that protrudes into a gap and is welded or joined to a lamella in a cantilever manner. It is known to construct a crosslinking device. Furthermore, the length of the toothed plate shown in the publication extends in the horizontal direction in the displacement of the central lamella and is freely reachable from above, with a vertically penetrating gap provided on the adjacent lamella Are dimensioned so that the packing band can be attached or removed between the lamellas. In the device, lamella and plate bolting is used, thereby avoiding rattling noise, but the lamellar upper and plate welding or joining shown in the publication has drawbacks. In the welding shown in the publication, the lower corner of the plate is welded to the upper side of the lamella. Part of the weld seam is in a hard-to-reach area between the lamella corner and the tooth plate on it, which makes it difficult to later weld the tooth plate to the lamella of the existing bridging device Become. Adhesive connections can be considered instead of welded connections, but the attachment action of adhesive connections is inherently lower than that of welding, which can cause plate disengagement over time.
[0011]
The object of the present invention is to provide a tooth plate arrangement for the bridging device, a method for fixing the tooth plate arrangement to the bridging device, and a secure and fixed connection between the bridging device and the tooth plate. And constructing a bridging device including a tooth plate arrangement as described above, wherein the connection can be easily and cost-effectively manufactured and has a higher long-term durability.
[0012]
This problem is achieved by the tooth plate arrangement according to claim 1, the fixing method of the tooth plate arrangement to the bridging device according to claim 23, and the bridging device according to claim 27. Is solved by having an opening for attachment of the weld extending from the upper side of the at least one toothed plate to the lower side thereof. By providing the opening, an area that can be easily reached for attachment of the weld is constructed, and the attachment of the weld seam is not affected by the edge shape of each tooth plate. Since the weld seam is reached from the top and attached completely, the existing bridging device can be re-equipped with a toothed plate in a simple form, and a good inspection of the weld seam can be performed.
[0013]
In addition, the hole welds described above provide improved durability in combination with individual tooth plates.
[0014]
In the formation of the toothed plate array, the opening is formed in a cylindrical shape. In another embodiment, the opening is formed in a funnel shape with a diameter expanding from the upper side of the tooth plate to the lower side of the tooth plate. After the lamella and tooth plate are welded, the opening is normally filled with a sealing compound, such as bitumen, so that the funnel-shaped opening provides good retention of the sealing compound within the opening. Close.
[0015]
In another configuration, the corners of the opening are chamfered on the upper side of the toothed plate, thereby avoiding sharp corners.
[0016]
The toothed plate according to the present invention preferably comprises a leg portion provided on the upper side of the lamella for fixing and a flange portion connected to the leg portion. In an advantageous embodiment, the legs are then essentially elliptical at their edges, so that they have a small distance from the lamella corner after fixing on the upper side of the lamella. With this elliptical shape, it is achieved that no protruding portion of the leg is generated on the corner of the lamella, particularly when the tooth-like plate is disposed obliquely on the lamella. Since the edge of the leg is elliptical and always reaches the vicinity of the corner on the upper side of the lamella, a large mounting area of the tooth plate is provided on the upper side of the lamella through the leg.
[0017]
In another particularly advantageous embodiment of the tooth plate according to the invention, a filling that seals between the upper side of the lamella and the lower side of the tooth plate after fixing the tooth plate on the lamella on the lower side of the tooth plate. Has material. With this filler, moisture that causes corrosion of the weld seam provided in the opening of the toothed plate cannot enter the intermediate space between the upper side of the toothed plate and the upper side of the lamella. Improved durability is achieved.
[0018]
In a particularly advantageous embodiment, a groove surrounding the opening provided for accommodating at least one sealing compound is mounted on the upper side of the toothed plate. Furthermore, in another configuration, a perforated region extending radially outward following the groove is provided. When fixing the toothed plate on the upper side of the lamella, preferably the sealing compound is filled into the groove and / or the perforated area, and the radius from the groove or perforated area when the compound presses the toothed plate on the upper side of the lamella. Is pushed outward in the direction, thereby effectively sealing between the upper side of the lamella and the lower side of the toothed plate. In this case, the groove advantageously extends in such a way that the groove has a small distance from the corners of the lamella after the tooth plate is fixed on the upper side of the lamella. This can be achieved in particular by the fact that the grooves are not formed circularly around the opening but have an elliptical extension. This makes it possible to easily attach an anticorrosive material (for example, a corrosion resistant paint) between the upper side of the lamella and the lower side of the toothed plate.
[0019]
In another embodiment, an essentially wedge-shaped recess for receiving a filler, preferably a rubber ring, is provided below the tooth plate instead of the groove.
[0020]
In another configuration, a holed portion extending radially outward from the corner of the opening is provided on the lower side of the toothed plate, and this portion is followed by a mounting area on the lower side of the toothed plate. Thereby, it becomes possible to designate a certain placement area of the tooth-like plate as a lamella. This perforated part is preferably produced by forging.
[0021]
In another embodiment, the tooth-like plate array is formed in a three-part type. The edges of the toothed plate are then waved, but a staggered shape of the edges of the toothed plate is also possible.
[0022]
In a particularly advantageous embodiment, the tooth plate provided for disposition in the central lamella of the bridging device is formed by an independent rhomboid body, the teeth of the tooth plate preferably being about 60 °. Which allows a sufficiently large gap between the two plates to join the packing band on the one hand after fixing the toothed plate to the lamella, and on the other hand produces an effective noise reduction. Sufficient teeth can be provided for the tire width to be tightened. Instead of independent bodies, rhomboid bodies connected to each other via a web may be used.
[0023]
In another embodiment, an independent rectangular body is used as the toothed plate. In another embodiment, the bodies are also connected to each other via a web.
[0024]
In order to further improve the noise reduction, in another embodiment, the toothed plate is provided with a layer of an elastic wear-resistant material, which layer is preferably attached on its upper side.
[0025]
The method according to the invention for fixing the toothed plate arrangement according to the invention on the lamellar of the crosslinking device is carried out as follows. In the first step, the tooth plate is placed on the upper side of the lamella. Following that, the tooth plate is then pushed upward on the lamella, resulting in a complete placement of the lower side of the tooth plate on the top of the lamella. Finally, the lamella and the toothed plate are welded to the corners of the opening below the toothed plate, and in the final step, the opening is filled with a sealing compound such as bitumen. By filling the opening with bitumen, the weld corner is sealed from the upper side of the toothed plate, so that corrosion of the weld seam is avoided. In addition, a flat surface is created on the upper side of the tooth plate, which further reduces noise.
[0026]
In an embodiment of the method in which the toothed plate is used with a groove arranged around the opening, a sealing compound follows the groove provided in the groove and / or optionally before pressing the toothed plate. Filled in the drilling area. This causes the sealing compound to be pushed radially outwards from the groove and / or piercing area when the tooth plate is pressed. Thereby, an improved seal is achieved between the tooth plate and the upper lamella.
[0027]
In another configuration of the method, the teeth of the tooth plate are placed diagonally on the lamella. This is particularly done when the climbing direction on the expansion joint is not perpendicular to the lamella extension direction. In this case, the angle between the extending direction of the lamella and the central axis of the toothed plate is about 60 °.
[0028]
The bridging apparatus according to the present invention is used for bridging expansion joints, particularly in a bridge structure, and is characterized in that it contains the above-described toothed plate arrangement according to the present invention.
[0029]
In an advantageous configuration of the bridging device, the teeth of the toothed plate arrangement protrude from the gap and are cantilevered and their length is connected to the lamella and extends horizontally in the displacement of the central plate, free from above Is dimensioned so that a vertically penetrating gap that can be reached between two adjacent center plates and two adjacent lamellae or between the center plate and the edge plate and the edge beam, The packing band can be inserted or removed between the lamellas or between the lamella and the edge beam.
[0030]
Furthermore, the bridging device in another embodiment provides a gap between the outer surface of the tooth and the adjacent lamella or edge beam so that the tooth protrusions of the toothed plate arrangement can change horizontally at the rest position of the bridging device. Is formed.
[0031]
In the formation of another device, the device is arranged obliquely with respect to the road extending direction, the tooth central axis of the tooth-like plate arrangement, and a transverse beam provided under the lamella arranged in the same oblique manner Extends in the direction of road extension.
[0032]
In another embodiment, a wavy or staggered gap is provided between two adjacent plates, the gap being approximately half the width of the gap below it between two adjacent lamellae. Have This results in particularly good noise reduction.
[0033]
To prevent the toothed plates from colliding with each other when nesting the lamellas on the adjacent lamellae, the teeth of the toothed plate are essentially on the adjacent lamellas in another embodiment in the direction of lamella extension. Are arranged so as to be shifted from each other.
[0034]
In another device formation, the tooth plate arrangement is arranged on the lamella, with the apex disposed on the adjacent lamella and essentially overlapping each other in the direction of climbing from the opposite tooth plate to the bridging device. It is installed. Thereby, further improvements in noise reduction are achieved.
[0035]
Other features and details of the present invention will become apparent from the following description of the preferred embodiment with reference to the accompanying drawings.
[0036]
FIG. 1 shows a cross-sectional view of an apparatus 1 for bridging an expansion joint to a bridge. A gap 4 is formed between the upper structure 2, that is, the bridge side, and the abutment 3, that is, the base, for absorbing bridge extension during temperature fluctuations. One box-like body 5 on which the cross beam 6 is supported is disposed on the edge beam 24 on the side surface of the gap 4. The gap 4 is covered with a multi-divided tooth plate array 8 placed in the plane of the road surface 7. In this case, the tooth plate 20 of the tooth plate arrangement is fixed to the upper side of the lamella 21 disposed between the expansion joints, and is adjacent to the edge beams 24 between the lamellas and both of the expansion joints. A packing band 23 is provided between the lamellae.
[0037]
The toothed plate arrangement shown in FIG. 2 is a wavy embodiment. The corrugated valley is above the lamella 21 and the corrugated comb 26 protrudes from the upper corner of the lamella. The lower side of the protruding corner or curved portion of the tooth plate 20 is higher than the upper lamella surface. Thereby, as implied by the arrow 17 in FIG. 1, the toothed plate cannot contact the lamella, thereby avoiding the striking or rattling noise that can occur between the lamella 21 and the plate 20. Furthermore, the tooth plate 20 has through openings arranged at regular intervals, the through openings are always on the upper side of the lamella, and the tooth plate is welded to the lower corner of the through opening on the upper side of the lamella. Has been. Such a fixing avoids weld seams where corrosion of the lamella occurs. The weld seam is thereby provided in the region inside the tooth plate and the corrosion resistance of the weld seam is further improved by the filler (not visible from FIG. 2) between the lower side of the tooth plate and the upper side of the lamella.
[0038]
As can be seen from FIG. 3 in connection with FIG. 2, the horizontal movement of the lamella 21 is possible as indicated by the arrow 27, resulting in a wavy free space 25 that allows the packing band 23 to be attached and removed. In other words, an interval that can be changed horizontally is possible between the outer surface of the teeth of the tooth plate array 8 and the adjacent lamella 21 or edge beam 24. Thereby, the displaced central plate 20 provides sufficient free space for attaching the packing band.
[0039]
Both the toothed plate arrangement embodiment shown in FIGS. 2 and 3 and the embodiment described in FIGS. 4-7 are approximately at the apex of the isosceles triangles 26, 36, 46, 56 assuming a finger-like top angle. It includes a finger-like top at 60 ° so that the side-to-plate spacing from plate to plate can be increased when pulling adjacent plates apart. Thereby, the packing band 23 can be inserted by bending it in a meandering manner from above. A limit angle of 60 ° has proven to be preferable when the angle increases, ie when the triangle becomes obtuse, because the spacing between the individual fingers becomes too large, thereby placing too few fingers or teeth side by side. ing. This will hinder noise mitigation, as the more cars that pass through the fingers or teeth, the more noise will be generated when passing through the bridge structure. On the other hand, the angle of the triangle must not be too acute, in which case the side spacing of the plates cannot be made sufficiently large when pulling the plates apart, thereby preventing the packing bands from being joined. Therefore, the angle formation of the tooth triangle, and the shape and arrangement of the plate accompanying it, can be attributed to the guide gap below. However, there must be a minimum spacing between the plate teeth of two opposing plates due to the movement of the lamella and the central plate connected to it. A ratio of 1: 2 has been demonstrated as the optimal spacing ratio of the serpentine or wavy gaps 25, 35 between the plate teeth of the two central plates and the underlying lamellar spacing. In this case, optimum noise reduction is possible due to the central plate connected to it at the same time as possible lamella movement.
[0040]
FIG. 4 shows a device for bridging an expansion joint to a bridge arranged obliquely with respect to the roadway direction, so that noise reduction is achieved by the diagonal climbing of the vehicle on the central plate or the lamella below it. can get. In this case, it should be noted that the plate teeth of the plate 30 are arranged asymmetrically in the present embodiment in order to allow the plate teeth to face the traveling direction of the vehicle. Both angles α and β drawn between the assumed plate leg triangular leg and the roadway direction are of the same magnitude. α = β.
[0041]
Also in this case, it can be seen from FIG. 5 associated with FIG. 4 that a free space 35 for joining the packing band is formed between the two tooth plates 30 when the lamella 31 moves.
[0042]
FIGS. 6 and 7 show another embodiment of the tooth plate arrangement according to the invention, which tooth plate is here formed from an independent diamond-shaped body 40. The body has an underlying lamella 41 and a central opening 9 each for welding the body. As is apparent from FIG. 6, the apex of the main body is arranged perpendicular to the lamella 41, and the gap 45 is greatly enlarged so that the packing band can be joined by the movement of the central lamella in FIG. .
[0043]
Further, as is apparent from FIG. 6, the adjacent finger-like tops overlap on the adjacent lamellae in the apex direction of the rhomboid body, that is, perpendicular to the extending direction of the lamellae. This overlap is shown in FIG. Such an overlap is desirable because this further mitigates noise mitigation when passing through the expansion joint.
[0044]
From FIG. 7, a lamella array similar to the lamella array of FIG. 6 is apparent, but the rhomboid body is arranged at an oblique angle rather than perpendicular to the extending direction of the lamella. This arrangement is used when the climbing direction on the expansion joint is not perpendicular to the extending direction of the lamella. In this case, the apex of the main body is arranged so that the apex is directed in the riding direction implied by an arrow in FIG. As is clear from FIG. 7, in that case, the overlap does not become perpendicular to the extending direction of the lamella, and adjacent vertices of the rhomboid body of the adjacent lamella are separated from each other (interval a ′ in FIG. 7). . However, in the climbing direction as well, as indicated by the interval b, overlapping of adjacent vertices of rhombus-shaped bodies on adjacent lamellae occurs. As a result, noise reduction is again achieved.
[0045]
FIGS. 8, 9 and 10 show another possible formation of the tooth plate of the tooth plate arrangement according to the invention, the diamond-shaped body substantially corresponding to the body of FIG. 6 in FIG. A penetrating toothed plate consisting of 50 is used, but the bodies are connected to one another via a central web 52. FIG. 9 shows an embodiment in which the toothed plate array disposed obliquely on the lamella 60 is composed of an independent rhombus-shaped main body 61. Instead of an independent diamond-shaped body, as shown in FIG. 10, a penetrating tooth-like plate 70 composed of diamond-shaped portions connected to each other via a narrow web 72 may be used.
[0046]
FIG. 11 shows a cross-sectional view along the line BB of the rhomboid body shown in FIG. As is apparent from this figure, the main body 40 is composed of leg portions placed on the upper side of the lamella, followed by a flange portion projecting from the lamella. The rhombus-shaped main body 40 has a cylindrical opening 9 with a corner portion chamfered at the top. This opening is welded to the lamella 41 at its lower corner. The weld seam is denoted by reference numeral 11 in FIG. Furthermore, it can be seen that a perforated portion 12 produced by forging follows the weld seam. This portion is further followed by a mounting area 13 of the main body on the lamella outward in the radial direction. This placement area is partitioned by a surrounding groove 14. This groove is followed by a perforated region 15 that reaches the upper corner of the lamella, respectively in the direction of the left and right corners of the lamella. The groove and perforated area 15 are then filled with a sealing compound, which allows the lower side of the body to be sealed against the upper side of the lamella, thereby preventing corrosion of the weld seam. Furthermore, the opening 9 of the body is filled with a sealing material 10, preferably bitumen, so that a flat upper side of the body 40 is achieved and a further sealing of the weld seam is achieved which prevents corrosion. The upper side of the main body 40 further has a flat portion 16 in its peripheral region, where further noise reduction is achieved when the main body passes.
[0047]
FIG. 12 shows an embodiment of a diamond-shaped body 40 ′ similar to that shown in FIG. 11, but the opening is not formed in a cylindrical shape. Instead, a funnel-shaped opening is provided, the diameter of which increases from the upper side of the body to the lower side of the body. This opening is similarly filled with a sealing compound 10. The funnel-shaped formation of the opening prevents the sealing compound from flowing out of the opening. Further, in this embodiment, a wedge-shaped accommodation portion 18 is provided on the lower side of the main body instead of the groove 14 and the recess portion 15 filled with the sealing compound, and the seal ring 17 is accommodated therein. Distinguish from form. This ring allows the underside of the body to be sealed against the lamella 41.
[0048]
FIG. 13 is a plan view of the rhomboid body shown in FIG. The mounting area 13 of the main body on the lamella is represented here by hatching. It can be seen from FIG. 13 that the leg of the main body is substantially elliptical at its edge. Thereby, protrusion of the leg part to the upper side of the lamella is prevented when the main body is placed obliquely on the lamella. Furthermore, since the groove 14 and the perforated area 15 do not extend circularly around the opening 9, but also extend elliptically, the opening reaches as close as possible to the upper corners of the lamella. Thereby, it is achieved that the mounting surface of the main body itself always extends to the vicinity of the corner of the lamella when the main body is disposed obliquely on the lamella, thereby guaranteeing stable placement of the main body on the lamella. . Furthermore, it is possible to easily provide anticorrosion between the upper side of the lamella and the lower side of the toothed plate.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view along line AA of FIG. 2 of an apparatus for bridging an expansion joint for a bridge, the apparatus having a toothed plate arrangement according to the present invention.
FIG. 2 is a plan view of the apparatus of FIG.
FIG. 3 is a plan view of the apparatus of FIG. 1 with a moved central plate.
FIG. 4 is an apparatus for bridging an expansion joint for a bridge disposed obliquely with respect to a roadway extending direction according to another embodiment of the present invention.
FIG. 5 is the embodiment of FIG. 4 with a moved lamella.
FIG. 6 is another embodiment of the present invention comprising a diamond-shaped tooth plate in which the teeth of the tooth plate are disposed perpendicular to the direction of the lamella.
FIG. 7 is an embodiment of the present invention provided with a diamond-shaped tooth plate in which the teeth of the tooth plate are arranged obliquely with respect to the lamella direction.
FIG. 8 is another embodiment of a toothed plate according to the present invention.
FIG. 9 is another embodiment of a tooth plate according to the present invention.
FIG. 10 is another embodiment of a toothed plate according to the present invention.
FIG. 11 is a cross-sectional view of the rhomboid body of FIG. 6 along line BB.
FIG. 12 is a cross-sectional view of a rhombus-shaped body similar to the body described in FIG.
13 is a cross-sectional view taken along line CC in FIG. 11. FIG.

Claims (33)

In a tooth plate arrangement for a device for bridging the expansion joint (4) in a bridge or the like having a gap (4) between the bridge (2) and the foundation (3), the tooth plate arrangement (8) is A plurality of dental plates (20; 30, 40; 50, 60; 70) with at least one central plate, and at least one lamella (21; 31; 41; 51, 61; 71) a toothed plate arrangement connectable to
Each tooth plate (20; 30; 40; 50; 60; 70) has at least one opening (9) extending from the upper side of the tooth plate to its lower side for attachment of the weld. Characteristic tooth plate arrangement. The toothed plate arrangement according to claim 1, wherein the opening is formed in a cylindrical shape. The toothed plate arrangement according to claim 1, wherein the opening (9) is formed in a funnel shape with a diameter expanding from the upper side of the toothed plate to the lower side of the toothed plate. 4. The tooth plate arrangement according to claim 1, wherein the corners of the openings (9) are chamfered on the upper side of the tooth plate (20; 30; 40; 50; 60, 70). . The tooth-like plate (20; 30; 40; 50; 60; 70) has one leg provided for fixing on the upper side of the lamella and a flange connected to the leg. The dentate plate arrangement | sequence as described in any one of thru | or 4. The legs are substantially oval shaped at their edges and are smaller with the corners on the upper side of the lamella after fixing the toothed plate (20; 30; 40; 50; 60; 70) on the upper side of the lamella The dentate plate arrangement according to claim 4, wherein the dentate plate arrangement is formed to have an interval. Each tooth plate (20; 30; 40; 50; 60; 70) has a filler provided on its lower side, which filler is on the lamella (21; 31; 41; 51; 61; 71). 7. A seal between the upper side of the lamella and the lower side of the toothed plate after fixing of the toothed plate (20; 30; 40; 50; 60; 70) to the tongue. Toothed plate array. The tooth-like shape according to any one of claims 1 to 7, wherein at least one groove (14) surrounding the opening (9) is provided on the underside of the tooth-like plate, in particular for use in accommodating a sealing compound. Plate arrangement. 9. Tooth plate arrangement according to claim 8, wherein the groove (14) is followed by a perforated area (15) extending radially outward. The groove (14) has a substantially elliptical extension, and further, the groove is a corner on the upper side of the lamella after the tooth plate (20, 30, 40, 50, 60, 70) is fixed to the upper side of the lamella. The dentate plate arrangement according to claim 8 or 9, having a small spacing. 8. Tooth shape according to any one of claims 1 to 7, wherein a substantially wedge-shaped recess (18) for receiving a filler (17), preferably a rubber ring, is provided below the tooth-like plate. Plate arrangement. A perforated portion (12) extending radially outward from the corner of the opening (9) is provided on the lower side of the toothed plate, and a mounting for placing the lower side of the toothed plate on the upper side of the lamella. 12. A toothed plate arrangement according to any one of the preceding claims, followed by a placement area (13). The toothed plate arrangement according to claim 9, wherein the perforated portion (12) is formed by forging. The tooth-like plate array according to any one of claims 1 to 13, wherein the tooth-like plate array (8) is formed in at least a three-divided type. 15. Tooth plate arrangement according to any one of the preceding claims, wherein the tooth plate (20; 30) is formed in a substantially wavy shape at its edge. 15. A toothed plate arrangement according to any one of the preceding claims, wherein the toothed plates (20; 30) are substantially staggered at their edges. 17. A dental plate arrangement according to any one of the preceding claims, wherein the central plate is formed from an independent rhomboid body (40; 40 '). 18. Tooth plate arrangement according to any one of the preceding claims, wherein the teeth of the tooth plate (20; 30; 40; 50) have an angle of about 60 [deg.]. 19. Toothed plate arrangement according to any one of the preceding claims, wherein the central plate is formed from rhomboid bodies (50) connected to each other via a web (52). A toothed plate arrangement according to any one of the preceding claims, wherein the central plate is formed from an independent rectangular body (60). A tooth plate arrangement according to any one of the preceding claims, wherein the tooth plate is formed from rectangular bodies (70) connected to each other via a narrow web (72). 23. A tooth plate arrangement according to any one of the preceding claims, wherein the tooth plate arrangement has a layer of elastic wear-resistant material, preferably on the upper side of the tooth plate. Dental plate arrangement (20; 30; 40; 50) to lamellae (21; 31; 41; 51; 61; 71) for the bridging device (1) according to any one of claims 1 to 22; 60; 70) in the fixing method,
-Placing the dental plate (20; 30; 40; 50; 60; 70) on the upper side of the lamella;
-The step of pressing the tooth plate (20; 30; 40; 50; 60; 70) on the upper side of the lamella to cause the entire connection of the lower side of the tooth plate on the upper side of the lamella;
The lamella (21; 31; 41; 51; 61; 71) and the tooth plate (20; 30, 40; 50; 60; 70) at the corner of the opening (8) below the tooth plate Welding process,
A step of filling the opening (8) with a sealing compound, in particular bitumen. 23. For fixing a toothed plate arrangement to a lamellar (21; 31; 41; 51; 61; 71) of a bridging device according to any one of claims 9 to 22 related to claim 8 or claim 8. In the method of
Before pressing the tooth plate (20; 30, 40; 50; 60; 70), the sealing compound is filled into the groove (9) and / or the perforated area (15), and when the sealing compound is pressed against the tooth plate 24. Method according to claim 23, for fixing a toothed plate arrangement which is pushed radially outwards from the groove (9) and / or the drilling area. 25. Method according to claim 23 or 24, wherein the teeth of the tooth plate (30; 40) are placed obliquely on the lamella (31; 41). 26. The tooth plate arrangement according to claim 25, wherein the angle of the central axis of the tooth plate (30; 40) is approximately 60 [deg.] With respect to the direction of extension of the lamella (31; 41). A device for bridging an expansion joint in a bridge or the like, comprising a toothed plate arrangement (8) according to any one of the preceding claims. The teeth of the toothed plate arrangement (8) project in the gap (4) and are cantilevered, and the length of the teeth is connected to the lamella (21; 31; 41; 51; 61; 71) Two adjacent central plates (25; 35; 45) that extend horizontally in the displacement of the central plate (20; 30; 40; 50; 60; 70) and are freely reachable from above (25; 35; 45) 20; 30; 40; 50; 60; 70) and between two adjacent lamellae (21; 31; 41; 51; 61; 71) or the central plate (20; 30; 40; 50; 60). 70) and the edge plate (22; 32) as well as between the lamellae (21; 31; 41; 51; 61; 71) and the edge beam (24), so the packing band (23) Lamellae (21; 31; 4 ; 51; 61; can be attached or detached between or in the lamellar and edge beam (24) during the 71), The apparatus of claim 27. At the protrusion, the teeth of the tooth plate arrangement (8) with the lamellae (21; 31; 41; 51; 61; 71) or the edge beam (24) adjacent to the outer surface of the tooth at the rest position of the bridging device (1) 29. An apparatus according to claim 27 or 28, wherein there is a spacing that can vary horizontally between them. The device is arranged obliquely with respect to the road extending direction, and is arranged below the central axis of the teeth (36) of the tooth-like plate array (8) and similarly below the lamella (31) arranged obliquely. 30. A device according to any one of claims 27 to 29, wherein the crossed cross beam (24) extends in the road extending direction. A wavy or staggered gap (25; 35; 45) is between two adjacent lamellae (21; 31; 41) approximately between two adjacent plates (20; 30; 40). 31. A device according to any one of claims 27 to 30 having a width of half the gap. The teeth of the toothed plate (20; 30; 40; 50; 60; 70) are arranged on the adjacent lamella (21; 31; 41; 51; 61; 71) substantially offset from each other in the extending direction of the lamella. 32. A device according to any one of claims 27 to 31. A toothed plate array (8) on the lamellae (21; 31; 41; 51; 61; 71) is disposed on the adjacent lamellae (21; 31; 41; 51; 61; 71) and is substantially relative 33. Device according to any one of claims 27 to 32, wherein the tops of the toothed plates (20; 30; 40; 50; 60; 70) are arranged in such a way that they overlap one another in the climbing direction of the bridging device. .

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