EP0904461A1

EP0904461A1 - Covering level with rails for railway tracks

Info

Publication number: EP0904461A1
Application number: EP97925766A
Authority: EP
Inventors: Bernhard Neumann
Original assignee: Gmundner Fertigteile GmbH and Co KG
Current assignee: Gmundner Fertigteile GmbH and Co KG
Priority date: 1996-06-11
Filing date: 1997-06-11
Publication date: 1999-03-31
Anticipated expiration: 2017-06-11
Also published as: ATA101596A; HUP0002071A3; AU715906B2; PL184279B1; NO985767D0; SK284517B6; DK0904461T3; CA2255943A1; TW340149B; CN1111227C; PL330321A1; JP3819938B2; ATE209732T1; SK170898A3; PT904461E; NO985767L; AT405426B; WO1997047816A1; NO313889B1; DE59705560D1

Abstract

Covering level with rails for tracks (1), in which the space (4) between the two rails of a track is bridged by slabs (5, 6) arranged in pairs, which are only supported at the rails (2, 3), and span the gap (13) between the rails unsupported, the two slabs of the pairs of slabs being connected by an articulated joint. The slabs (5, 6) of each pair of slabs have on their facing edges (15, 16) interlocking alternating bearing sections (17) and support sections (18), with the bearing sections being formed by recesses (20) that start at the upper face of the slab (19 and extend to the edge facing the other slab, and upward-facing recesses (22) formed under the support sections (18) and starting at the lower face of the slab (21) whose shape is complementary to the recesses in the bearing sections. The support sections of the one slab lie on the bearing sections of the other slab, and the support sections of the other slab lie on the bearing sections of the first slab. The slabs for covering level with rails are preferably made of concrete, and reinforced.

Description

Rail-like covering for tracks

The invention relates to a rail-like covering for tracks, in which the space lying between the two rails of a track is filled or bridged with plates arranged in pairs, which engage with at least one edge strip in the link chambers of the rails and only on the rails are supported and bridge the distance between the rails cantilevered, the two plates of the plate pairs being joined together in an articulated manner.

Rail-like coverings for tracks are provided in order to allow road vehicles to drive on track areas. A particularly important area of application are the railroad level crossings, i.e. intersections of roadways and railroad tracks. The storage of the components forming the roadway in the track area is of great importance, since the vehicles passing the transition, in particular the rail vehicles, exert considerable static and dynamic loads on the traffic routes. The elastic properties of the track, which are largely determined by the track bedding, should not or only slightly deviate in the area of a rail-like transition from the relevant properties that are placed on the track sections following such a transition. This then appears feasible if the properties of the track bedding are not changed by components of the roadway lying directly on the bedding elements. One has therefore come to track coverings with the same rails, in which the space lying between the two rails of a track is bridged with plates which engage in the link chambers of the rails and are supported only on the rails and the distance between the rails cantilever bridge. There are designs in which a single plate is supported with its opposite edges on the two rails of a track, elastic profiles being arranged between the edges of such a plate and the link chambers of the rails. The insertion of such plates involves certain difficulties and requires experienced workers, and it is difficult As a rule, it is necessary to use two angular elastic profiles on at least one edge side of these plates to support them in the link chamber of the rail, one of these angular profiles being placed on the rail foot and the other under the rail head. One way to be able to insert plates between the rails in a rail-like covering for tracks, which are intended to bridge the space between the two rails of a track and are only to be supported on the rails, is to insert pairs of plates to be used, the two plates of which are joined together in an articulated manner, the articulated axis running in the longitudinal axis of the track. In a known rail-like covering of this type (DE-23 50 759-A2), the insertion of this pair of plates between the two rails of a track can be carried out relatively easily by unfolding the pair of plates, but they are provided by those provided Formation of the joint-like connection in the form of a joint rod inserted between the two plates of the pair of plates, against which the plates simply rest, exerting strong lateral forces on the pair of plates, which attempt to push the rails apart, upon the occurrence of greater loads on the plates which is undoubtedly disadvantageous; there is also the danger that the stability limit will be overcome and the plates will fold down until the joint zone comes to rest on the sleepers of the track.

It is an object of the present invention to provide a rail-like covering of the type mentioned at the outset, in which the disadvantages of known designs are avoided and adverse influences of a static and dynamic nature on the track and its bedding are largely eliminated, and also the installation and removal of the between plates to be provided on the two rails of a track can be accomplished in a simple manner.

The roof covering of the type mentioned at the outset, according to the invention, is characterized in that the plates of each pair of plates are supported on one another at their mutually facing edges, and in this case, for each plate along the edge facing the other plate, alternating support sections and support sections are provided in a meandering manner where the support sections are formed by depressions extending from the top of the panel and extending to the edge facing the other panel, and underneath the support sections from the underside of the panel are formed upward depressions which are complementary to the depressions of the support sections, and the support sections of one plate rest on the support sections of the other plate and the support sections of the other plate rest on the support sections of the one plate. With this training, the above-mentioned objective can be easily met in a structurally simple manner. The zones of the plates of each pair of plates which join together in an articulated manner can simply be stuck together when the plates are unfolded, after which the plates can be inserted between the rails without any problem by leveling the pair of plates, and the plates become even when exposed to large loads, such as when rolling over them heavy trucks occur, not pushed apart.

A preferred embodiment, which is characterized in that projections and recesses shaped complementarily to the projections, into which the projections engage, are provided on those surfaces on which the plates of a pair of plates abut one another, for mutual locking of the plates, offering the advantage that the cohesion of the plates of a pair of plates is ensured even over very long periods of time even when unfavorable vibrations act on the plates.

It is in the sense of the simplest possible and with little effort insertion process of the plates between the rails and in the sense of a simple removal of the plates of advantage if it is provided that the wings provided in the support sections face that of the other plate of the plate pair Edge starting from the underside of the slab is first steeply rising and then flattened. It is furthermore advantageous and also advantageous for securing a stable hold of the plates in their installed state over long periods of time if it is provided that the wings provided in the support sections have a convex shape, which in the leveled position of the Plates of the respective pair of plates one mutual movement of these plates in the direction of the plate level inhibits. Such a crowning can be formed on a plate by a surface section which extends from the edge facing the other plate of the plate pair and which extends away from the underside of the plate, and a subsequent surface section which approaches the underside of the plate. If one also wants to provide a latching in such a design of the plates, it is advantageous if they are designed in such a way that projections pointing downward are provided on the end edges of the support sections and recesses complementary to these projections are provided on the wings of the support sections.

Particularly advantageous for the course of the leveling process when installing the plates and for achieving the most stable possible position of the two plates of a pair of plates in relation to one another in the installed state is an embodiment which is characterized in that the cambered wings are shaped according to a toothing which up to the leveled position of the plates of the respective plate pair, a sliding movement or rolling movement of the facing wings and support surfaces on one another enables and in the leveled position of these plates prevents movement of these plates to one another.

There is also a geometry which is favorable for the joining of the plates of a pair of plates and for the subsequent relative movement of these two plates during the installation process of the plates, provided that the plates are rounded at the mutually facing edges starting from the underside of the plate and rounded upwards, the radius of curvature being equal to or less than the distance between these edges and the rail-side edges of the plates. Furthermore, for the simplest possible joining of the plates of a plate pair, it is advantageous to provide that the two plates of a plate pair lie apart on the underside of the plate approximately along a straight line. If, on the other hand, one wants to achieve the highest possible load-bearing capacity of the pair of plates, it is advantageous to provide that the two plates of a pair of plates lie against one another in a meandering manner on the underside of the plate. In particular, concrete, such as cement concrete or polymer concrete, or similar composite materials consisting of a lumpy aggregate and a binding agent are provided as the material for the slab-like covering slabs. It is usually favorable to arrange reinforcement in the slabs. A preferred embodiment is characterized in that the plates are made of concrete or a concrete-like composite material made of particulate aggregate and binding agent and have a reinforcement which extends over the plate surface and engages in the support sections and in the support sections and in the at least one edge strip.

The invention also relates to a rectangular plate for a rail-like covering designed for rails as set out above. This plate is characterized in that the plate on the opposite edge of said edge has supporting sections and supporting sections in a meandering succession, the supporting sections being formed by depressions extending from the upper side of the plate and reaching to the edge and under the support ¬ sections are formed from the underside of the plate, which are complementary to the depressions of the supporting sections. It is preferably provided that the plate is made of concrete or a concrete-like composite material made of particulate aggregate and binder. It is further advantageous if a reinforcement is provided in the slab, which extends over the entire slab surface, into the support sections and into the support sections and into the at least one edge strip.

The invention will now be further explained with reference to examples, which are shown schematically in the drawing. The drawing shows:

1 shows an embodiment of a rail-like covering formed according to the invention in a top view,

2 this embodiment in a section along the line II-II in Fig.l,

3 shows this embodiment in a section along the line III-III in Fig.l,

4 an oblique view of a plate provided with such a covering, 5, likewise in an oblique view, a pair of such plates, in the unfolded state in the course of the insertion process,

6 shows a variant with regard to the design of the support sections and the support sections in a sectional representation corresponding to FIG. 3,

7 shows another embodiment of a covering according to the invention in a top view,

8 this embodiment in section along the line VIII-VIII in FIG. 7,

9 shows this embodiment in section along the line IX-IX in FIG. 7,

10 shows a plate provided in a covering according to FIG. 7 in an oblique view, _N

11 shows a pair of such plates in the unfolded state in the course of the insertion process, likewise in an oblique view, and

12 shows a variant with regard to the design of the support sections and the support sections of the plates in a sectional representation corresponding to FIG.

In the embodiment shown in FIGS. 1 to 3 of a rail-like covering for rails designed according to the invention, the space 4 lying between the two rails 2, 3 of a rail 1 is filled or bridged with plates 5, 6 arranged in pairs. These plates 5, 6 have edge strips 7 which engage in the tab chambers 8 of the rails 2, 3, and elastic profiles 9 with an approximately C-shaped cross section are inserted between the edge strips 7 and the rails 2, 3. In this way, the plates 5, 6 are supported with their edge strips 7 on the rail foot 10 and laterally against the rail web 11 and held upwards by engagement under the rail head 12. The plates 5, 6 bridge the distance 13 between the rails 2, 3 cantilever. A plurality of edge strips 7 are provided on each of the plates 5, 6, which are arranged at a distance from one another in order to make the fastening elements 14 provided for the rails 2, 3 accessible. However, with a different choice of plate dimensions and plate installation arrangement, it is also possible to provide only a single edge strip 7 on each plate.

At their mutually facing edges 15, 16, the plates 5, 6 of each pair of plates are supported on one another, so that each pair of plates forms an assembled body which bridges the distance 13 between the rails 2, 3 in a self-supporting manner. For this purpose, each plate 5 or 6 along the edge facing the other plate 6 or 5 alternately meandering alternating support sections 17 and support sections 18 are provided, the support sections 17 being formed by depressions 20 extending from the top side 19 of the plate, which up to that of the edge facing another plate; underneath the support sections 18, from the plate underside 21, upward, depressions 22 are formed, and the support sections of the plate 5 rest on the support sections of the plate 6 and the support sections of the plate 6 rest on the support sections of the plate 5; the depressions 20 are complementary to the depressions 22, so that the support surfaces 24 formed on the support sections 18 by the depressions 22 rest substantially snugly on the wings 23 formed by the depressions 20 on the support sections 17. For the aforementioned formation of the plates, reference may also be made to the illustration of such a plate in FIG. 4.

In order to insert the plates 5, 6 in pairs between the rails 2, 3 of a track, they can first be arranged in the unfolded position, as shown in FIG. 5, and inserted into one another with their meandering edges 15, 16, whereby one also arranges the elastic profiles 9, which have a C-shaped cross section, between the edge strips 7 of the plates 5, 6 and the rails 2, 3. Then the plates 5, 6 are pivoted or folded down, as indicated by the arrow 25, until they assume the leveled position shown in FIGS. 1 to 3, in which the plates 5, 6 of each pair of plates space 4 between bridge the rails 2, 3 cantilevered.

The wings 23 provided in the support sections 17 have a cambered shape, and such a cambered shape is also present in the support surfaces 24 provided on the support sections 18, and a cohesive shape of the plates 5, 6 is created by this cambered shape of the surfaces mentioned , which in the leveled position of the plates 5, 6 a mutual movement of these plates in the direction of Plate level (arrows 26) inhibits. Furthermore, projections 27 are provided on the support surfaces 24 and recesses 28 on the support surfaces 23, which are complementary to the projections 27; in the leveled position of the plates, the projections 27 snap into the recesses 28, so that there is mutual locking of the plates 5, 6.

If desired, an elastic and / or shock-absorbing insert or coating can be provided between the support surfaces 23 and the support surfaces 24.

The wings 23 provided on the support sections run from the edge 15 or 16 of the plate 5 or 6 in question, starting from the underside 21 of the plate, first rising steeply and then becoming flatter, which is advantageous for joining the plates to the plate pairs. From a geometrical point of view, it is favorable if such domed wings are shaped according to a toothing which, up to the leveled position of the plates 5, 6 of the respective pair of plates, enables the facing wings and supporting surfaces to slide or roll on one another, and in the leveled position (Fig .l to 3) locks these plates against movement to each other. This surface shape corresponding geometrically to a toothing can extend up to the top side 19 of the plate.

The projections 27 can, as shown in FIGS. 1 to 4, be provided on the end edges 29 of the support sections 18, which can bring advantages when the plates are joined together, but it is also possible to place such projections 27 at other locations , e.g. slightly moved away from the edge of the support surfaces.

In the variant shown in Figure 6, the wings 23 and the support surfaces 24 are largely flat; for mutual locking of the plates 5, 6, depressions 28, in which projections 27 engage, are also provided.

Both in the embodiment shown in FIGS. 1 to 3 and in the variant shown in FIG. 6, the two plates 5, 6 of a pair of plates lie on one another in a meandering manner on the underside 21 of the plate, so that the mutually facing edges of the plates 5 , 6 run on the underside of the plate following a meandering line 34. It This results in a very intimate cohesion of the plates 5, 6 forming a plate pair with one another.

However, the design of the sections of the plates of a pair of plates which are in contact or in engagement with one another can also be selected such that the mutually facing edges 15, 16 of the plates 5, 6 abut one another along the straight line 30 on the underside 21 of the plate, as a result of which both the manufacture of the plates and the sequence of the assembly process can be simplified; such a configuration is present in the embodiments shown in FIGS. 7 to 12. Many details of these embodiments are designed analogously to the embodiments of FIGS. 1 to 6, and it is therefore possible to refer to the above discussions on FIGS. 1 to 6 in this context. A cambered shape of the wings 23 is provided in the embodiment according to FIGS. 7 to 10, while the variant according to FIG. 12 has an essentially flat design of these wings 23. In both cases, projections 27, which engage in depressions 28, are arranged on the end edges of the support sections. However, as already mentioned above, such projections 27 can also be placed elsewhere in the region of the support surfaces.

In the embodiments shown in FIGS. 7 to 12, the plates 5, 6 are shaped to be rounded upwards at the mutually facing edges 15, 16 from the underside 21 of the plate, the radius of curvature of this rounding being equal to or smaller than the distance 31 between the edges 15, 16 and the rail-side edges 32 of the plates 5, 6. This measure is also advantageous for an unrestrained process of inserting the plates.

It is usually convenient to place reinforcement in the slabs. According to a preferred embodiment, it is provided that the reinforcement 33 extends over the entire surface area of the plates 5, 6 and, as indicated by the broken line in FIG. 4, both in the support sections 17 and in the support sections 18 and in the edge strips 7 engages.

Furthermore, it is possible to provide the plates 5, 6 with frames 35, as is e.g. is indicated by dashed lines in FIG.

From Figures 7 to 9 it can also be seen that the purpose Sound attenuation in the plates 5, 6 cavity resonators 36 can be provided with sound openings 37 opening on the top of the plates.

Claims

Claims:

1.The same covering for tracks, in which the space between the two rails of a track is filled or bridged with plates arranged in pairs, which engage with at least one edge strip in the link chambers of the rails and are supported only on the rails and the distance between them bridge the rails in a self-supporting manner, the two plates of the plate pairs being joined together in an articulated manner, characterized in that the plates (5, 6) of each plate pair are supported on one another at their mutually facing edges (15, 16) and in this case along each of the plates along the other Plate facing edge meandering alternating successive support sections (17) and support sections (18) are provided, the support sections being formed by recesses (20) extending from the top side of the plate (19) and reaching to the edge facing the other plate and below the support sections (18) of the plate underside (21) outgoing, upward depressions (22) are formed, which are shaped complementary to the depressions of the support sections, and the support sections of one plate on the support sections of the other plate and the support sections of the other plate on the support sections of the one plate lie on.

2. Same rail covering according to claim 1, characterized gekenn¬ characterized in that on those surfaces (23, 24) on which the plates (5, 6) of a pair of plates abut each other, projections (27) and complementary to the projections formed depressions (28) , in which the projections snap into place, are provided for mutual locking of the plates (5, 6).

3. Equal rail covering according to claim 1 or 2, characterized in that the wings (23) provided in the supporting sections (17) from the edge facing the other plate of the pair of plates starting from the underside of the plate (21) first rising steeply and then becoming flatter are shaped.

4. Equal rail covering according to claim 3, characterized gekenn¬ characterized in that in the support sections (17) provided Trag¬ surfaces (23) have a convex shape, which in the planed position of the plates (5, 6) of the respective plate pair a mutual movement of these plates in the direction of the plate plane (26) inhibits.

5. Equal rail covering according to claim 2 and claim 3 or 4, characterized in that on the end edges (29) of the support sections (18) downward-facing projections (27) and on the wings (23) of the support sections (17) to these before ¬ jumps (27) complementary depressions (28) are provided.

6. Equal rail covering according to claim 4, characterized gekenn¬ characterized in that the cambered wings (23) are shaped according to a toothing, which up to the leveled position of the plates (5, 6) of the respective plate pair, a sliding movement or rolling movement of the facing wings and supporting surfaces on each other and in the leveled position of these plates locks against movement of these plates to each other.

7. Same rail covering according to one of the preceding claims, characterized in that the plates (5, 6) on the mutually facing edges (15, 16) starting from the plate underside (21) are rounded upwards, the radius of curvature being the same how or less than the distance (31) between these edges (15, 16) and the rail-side edges (32) of the plates (5, 6).

8. Same rail covering according to one of the preceding claims, characterized in that the two plates (5, 6) of a plate pair on the plate underside (21) lie approximately along a straight line (30).

9. same rail covering according to one of claims 1 to 7, characterized in that the two plates (5, 6) of a pair of plates on the plate underside (21) lie meanderingly interlocking.

10. The same rail covering according to one of the preceding claims, characterized in that the plates (5, 6) are made of concrete or a concrete-like composite material made of particulate aggregate and binder and have a reinforcement (33) which extends over the plate surface

(26) extends and engages in the support sections (17) and in the support sections (18) as well as in the at least one edge strip (7).

11. Rail-like covering according to one of the preceding claims, characterized in that an elastic and / or shock-absorbing insert or coating is provided between the support surfaces (23) provided on the support sections and the support surfaces (24) provided on the support sections.

12. Rectangular plate for a rail covering for rails according to one of claims 1 to 9, which plate is provided on one edge side with at least one edge strip for engaging in the link chambers of rails, characterized in that the plate (5, 6) on the has edge sections (7) opposite said edge strip in a meandering sequence of support sections (17) and support sections (18), the support sections being formed by recesses (20) extending from the top side of the plate (19) and reaching as far as the edge and formed under the support sections (18) from the underside of the plate (21), upward depressions (22), which are complementary to the depressions of the support sections.

13. Rectangular plate according to claim 12, characterized in that the plate (5, 6) is formed from concrete or a concrete-like composite material from a particulate aggregate and binder.

14. Rectangular plate according to claim 13, characterized in that in the plate (5, 6) extending over the entire plate surface (26), in the support sections (17) and in the support sections (18) and in the at least one edge strip (7) reaching reinforcement (33) is provided.