JP4786665B2 - Plane crossing railroad crossing - Google Patents

Description

  The present invention is a crossing railroad railroad crossing that extends on one or more railroad tracks having lateral sleepers to which rails of respective railroads are attached, and a traveling surface on which a vehicle can pass and is formed by a covering member. The covering members facing the rails at the edges are supported only by the respective rails, and the covering members arranged between the two rails of the respective tracks provide a space existing between these rails. The cover member is provided so as to be freely held from rail to rail, and the covering member is provided so as to be adjacent to the outside of the rail of each track, and is supported by each rail at an edge on the rail side and faces away from the rail. It relates to a crossing railroad crossing that is supported on the base on the side.

  Due to the special configuration of the covering member support, in the railway crossings of the type described above, the covering plate does not directly affect the rail holding structure, and the adverse effect of the covering member on the elastic behavior of the track is largely eliminated. Thus, in particular, the adverse effect on the gravel roadbed that serves as the foundation for the elastic railroad is eliminated, and in this way, the dominant elasticity and the dominant elasticity at the part of the railroad crossing that is located outside the railroad crossing in this area. Having different elasticity is also eliminated.

  During braking and acceleration operations and during steering operations, road vehicles exert a large force on the cover member over which the vehicle travels in the area of railroad crossings, and this force is combined with the load applied by the road vehicle and covers it. Combined with the dead weight of the member, it is transmitted to the rail of the track. This causes the rail to experience significant bending stress both in the vertical and horizontal directions. The forces acting in the horizontal and lateral directions with respect to the direction of the rails try to shift the track horizontally, but on the other hand these forces are counteracted by the frictional force between the sleepers and the roadbed, On the other hand, it receives a reaction due to the bending stress of the rail.

  The object of the present invention is to have a simple configuration, can be constructed without any problems in a large number of positions, can realize a good stability of the position of the track and the bending stress of the rail as weak as possible. Is to provide the kind of plane crossing railroad crossing defined.

  A plane crossing railroad crossing of the kind defined at the beginning constructed according to the invention has one or more covering members provided in the area of the railroad crossing supported via the edge of the covering member facing the rail The rails of the railroad tracks are attached and fixed to the supporting beams extending along the rails below the rails in the railroad crossing region, and the supporting beams connected to the two rails of each railing are Connected to each other, the support beams are placed on the roadbed, and the rails are mounted on the lateral sleepers only outside the railroad crossing area.

  With this configuration, the above-described purpose can be sufficiently satisfied. The support beam to which the rail is attached can cope with most of the bending load caused by the force transmitted to the rail by the covering member, and such a force is applied to the relatively elongated part of the track. It is transmitted to the distributed way bed. This, combined with the inherent stiffness of the support beam, provides very good stability of the track position. The combined effect is also significant, with the cover members spanning the area of the track in a free-standing manner supported by the rails, and each rail being attached and secured to a longitudinally extending support beam located on the roadbed. After removing the covering member, it is also possible to appropriately reach the roadbed on which the support beam is placed so that maintenance work on the roadbed can be easily performed. By connecting the supporting beams connected to the two rails of the track by a lateral web, the construction work performed when providing the railroad crossing constructed according to the present invention is facilitated, and the railroad in the region of the railroad crossing The stability of the gauge is easily ensured. In addition, such a transverse web can be used when the vehicle passes through a railroad crossing, even if a significant portion of the force transmission changes from one rail of the track to the other rail of the track. This also has the effect of ensuring that the majority of the force transmitted to the road is always transmitted to the roadbed by both support beams, and this equalization of the force transmission to the roadbed performed by the transverse web is Helps stabilize the position of the track in the region.

  The support beam is preferably mounted on a gravel roadbed. This configuration is preferable in order to adapt the elastic behavior of the track in the railroad crossing area to the elastic behavior of the track section assembled in the lateral sleepers. In this regard, it can be said that the elastic behavior of the track has a considerable influence on the dynamic drive characteristics of the vehicle. For example, a roadbed having another configuration can be provided by a support beam placed on the roadbed, and the roadbed can be leveled by a thin gravel layer. Furthermore, an advantageous embodiment of a railroad crossing constructed according to the invention is obtained when the support beam comprises a pressure-deformable layer on its bottom side. This places the support beam properly and securely on the road bed, leveling the tolerance of the road bed, and improving resistance to displacement of the support beam relative to the road bed. A suitable further improvement of this embodiment is characterized in that the pressure deformable layer provided on the bottom side of the support beam is a pressure elastic layer. This further improves the sitting of the support beam on the roadbed, also attenuates the impact noise caused by the vehicle passing over the railroad crossing area, and the pressure elastic layer automatically compensates for irregular settlement of the roadbed. You can also fake. One advantageous embodiment in this regard is characterized in that the pressure elastic layer is formed of an elastomer.

  An advantageous embodiment of the railroad crossing according to the invention, in which the support beam comprises a pressure-deformable layer on its bottom side, is characterized in that the pressure-deformable layer is foamable. In this way, a pressure-deformable layer can be formed on the bottom side of the support beam with relatively low material costs, this layer fits snugly on the road bed and has good equalization properties with respect to the road bed tolerance, It has good damping characteristics against impact sound.

  Furthermore, it is further advantageous if the support beam extends to a position beyond the edge of the running surface extending laterally in the rail longitudinal direction when viewed from the rail longitudinal direction. Thus, smooth connection with the track section arranged outside the railroad crossing can be easily performed with respect to the track characteristics, particularly with respect to the dynamic characteristics of the track.

  It is further appropriate if the supporting beams arranged below the individual rails of the respective tracks can be formed by several supporting beam parts arranged continuously in the longitudinal direction of the rail and interconnected. This has the advantage of transporting the supporting beams at the railroad crossing, and the advantage of handling these support beams when constructing the railroad crossing, and also the support arranged continuously and interconnected. By connecting the beam portions, it is advantageous in that the rails are protected from the stress caused by the movement of the support beam portions at the portions of the respective support beam portions that transition to the subsequent support beam portions.

  In the following, the invention will be described in detail with reference to exemplary embodiments schematically shown in the drawings.

  The railroad crossing shown in FIGS. 1 and 2 has a running surface 4 that is formed by covering members 6 and 7 across the track 2. On both sides of the track, a road surface 5 is arranged following the running surface 4. The covering member 6 is disposed between the rails 10 and 11 of the track 2, and the covering member 7 is disposed so as to be adjacent to the outside of the rails 10 and 11 of the track. The covering members 6, 7 are inserted at the edges 8, 9 facing the rails 10, 11 between the rails 10, 11 and the covering members 6, 7. It is supported only by the rails 10 and 11. The covering member 6 disposed between the rails 10 and 11 of the track 2 straddles the space 12 existing between the rails 10 and 11 in a free holding manner from the rail to the rail, and is adjacent to the outside of the rails 10 and 11. 7 is supported on the rails 10 and 11 by the rail-side edge 9 via the inserted elastomer part 9a, and is supported on the base 14 by the side 13 facing away from the respective race. .

  In the railroad crossing 1 region, the rails 10 and 11 of the track 2 are mounted on support beams 15 and 16 disposed below the rails 10 and 11 so as to extend along the rails 10 and 11. The rails 10 and 11 are connected to support beams 15 and 16 by a rail fixing member 17. The support beams 15, 16 connected to the two rails 10, 11 of the track are connected to each other by a transverse web 18, and the support beams 15, 16 are in this exemplary embodiment a gravel road bed 19. It is placed on the roadbed. Outside the railway railroad crossing 1, the rails 10 and 11 of the track 2 are mounted on a horizontal sleeper 20 laid on a gravel road floor 21.

  The support beams 15, 16 may end at the lateral edges 22 of the running surface 4. However, the load distribution can be improved, and on the one hand, the dynamic characteristics of the track in the area of the railroad crossing 1 and on the other hand the dynamic characteristics of the track in the area of the track section following the railroad crossing can be made uniform. Furthermore, when viewed from the rail longitudinal direction 23, the support beams 15, 16 cross the lateral edge 22 of the running surface 4 extending transversely to the rail longitudinal direction as shown in FIG. It is appropriate to extend to a different position.

  In the embodiment shown in FIG. 3, the support beams 15, 16 extending below the rails 10, 11 are mounted on a roadbed 24 that is stabilized on its upper side by a gravel layer 25.

  In the embodiment shown in FIG. 4, the support beams 15, 16 arranged below the rails 10, 11 carry a pressure-deformable layer 27 laid on the road bed realized in the form of a gravel road bed 19. The bottom side 26 is provided. Since the layer 27 is deformable, this layer fits snugly on the irregular upper side of the gravel road bed 19, and in this way a particularly good adhesion of the support beams 15, 16 to the gravel road bed 19 is achieved. This prevents unwanted lateral displacement of the support beams 15, 16 and, in addition, equalization of the shape tolerances on the upper side of the gravel road bed 19 is achieved. The pressure-deformable layer 27 may have a thickness of 1 cm or more, for example. In most cases, it is advantageous for the pressure-deformable layer 27 to be a pressure-elastic layer, and it is appropriate to form such a pressure-elastic layer by means of an elastomer. To substantially eliminate material costs and construction work, it is appropriate that the pressure-deformable layer 27 is a foamable layer, and such embodiments provide support beams 15 and 16 for the roadbed or gravel roadbed, respectively. It is also suitable for properly adhering to 19 and attenuating the impact sound formed when traveling on railroad crossings.

  The railroad crossing shown in FIG. 5 extends across two tracks 2 and 3 extending side by side. The traveling surface 4 of the railroad crossing 1 is formed by covering members 6 and 7. The covering member 6 is disposed between the rails 10 and 11 of the track 2 and between the rails 10 and 11 of the track 3. 10 and 11 are supported only, and the space existing between the rails 10 and 11 in each of these lines spans from rail to rail in a free-holding manner. The covering member 7 is arranged so as to be adjacent to the outside of the rails of the lines 2 and 3, and the covering member 7 is supported by these rails 10 and 11 by the edge 9 facing the rails 10 and 11 of the covering member 7. The covering member 7 is supported on the base 14 by the side 13 facing away from the rails 10, 11 of the covering member 7. The rails 10 and 11 of the tracks 2 and 3 are attached to the lateral sleepers 20 placed on the gravel road floor 21 outside the area of the railroad crossing 1. In the region of the railroad crossing 1, the support beams arranged below the individual rails 10, 11 are several support beam portions 15 a, 15 b, 16 a, 16 b continuously arranged and interconnected in the rail longitudinal direction 23. Is formed by. The connection of the support beam portions 15a, 15b on the one hand and the support beam portions 16a, 16b on the other hand is effected by a seam plate 28 which can be seen in an exploded view of the covering member. Similar to the embodiment according to FIGS. 1 and 2, the support beam thus formed extends to a position beyond the edge 22 of the running surface 4 when viewed from the longitudinal direction 23. Similar to the example according to FIGS. 1 and 2, in this case too, the support beams formed by the support beam portions 15a, 15b, 16a, 16b are placed on the gravel road floor 19 and the lateral sleepers 20 are connected to the gravel road bed 21. It is planted on the top. However, if necessary, it is also possible in this example to select different foundations, for example roadbeds, which hold on the one hand support beams and on the other hand transverse sleepers.

1 is a top view of this railroad including a portion of a railroad crossing that constitutes an exemplary embodiment of the invention across the railroad. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 showing this embodiment of a railroad crossing. It is sectional drawing corresponding to FIG. 2 which shows the correction embodiment of the railroad crossing comprised by this invention. It is sectional drawing corresponding to FIG. 2 which shows the correction embodiment of the railroad crossing comprised by this invention. 1 is a top view of one embodiment of a railroad crossing constructed in accordance with the present invention that is modified with respect to support beams and extends over two tracks. FIG.

Claims (7)

A crossing railroad railroad crossing that extends over one or more tracks (2,3) with lateral sleepers (20) to which the rails of each track (2,3) are attached, and is a covering member that can pass vehicles. (6, 7) including the running surface, the cover member facing the rail at the edge (8, 9) is supported only by the rail (10, 11), The covering member (6) arranged between the two rails straddles the space (12) existing between these rails (10, 11) in a free-holding manner from rail to rail, and the covering member (7) Each of the rails (2, 3) is provided adjacent to the outside of the rails (10, 11), and the covering member (7) is provided on each rail (10) at an edge (9) on the rail side. , 11) and at the crossing railroad crossing supported by the base (14) on the side (13) facing away from this rail,
The rail (10, 11) of the one or more tracks (2, 3), wherein the covering member provided in the railroad crossing region is supported via an edge of the covering member facing the rail. However, in the region of the railroad crossing (1), the support beam (15, 16; 15a, 15b, 16a, 16b) extends along the rail (10, 11) below the rail (10, 11). Attached and fixed,
The support beams connected to the two rails (10, 11) of the respective tracks (2, 3) are connected to each other by a lateral web (18), and the support beams are on the road bed (19). The rail is mounted on the transverse sleepers (20) only outside the area of the railroad crossing (1) ,
The crossing railroad crossing characterized in that the support beams (15, 16; 15a, 15b, 16a, 16b) are provided with a pressure-deformable layer on the bottom side thereof .   The crossing railroad crossing according to claim 1, characterized in that the support beams (15, 16; 15a, 15b, 16a, 16b) are attached to a gravel roadbed (19). Said support beam; characterized in that (15, 16 15a, 15b, 16a, 16b) of said pressure deformable layer provided on its bottom side (27) is a pressure elastic layer, according to claim 1 or 2 Level crossing railway crossing. The crossing railroad crossing according to claim 3 , wherein the pressure-deformable pressure elastic layer is formed of an elastomer. Characterized in that said pressure deformable layer is foamed, the plane intersecting railroad crossing according to any one of claims 1 to 4. The support beams (15, 16; 15a, 15b, 16a, 16b), when viewed from the rail longitudinal direction, the edge (22) of the running surface (4) extending laterally in the rail longitudinal direction. The level crossing railroad crossing according to any one of claims 1 to 5 , wherein the railroad railroad crossing extends to a position beyond the level crossing. The supporting beams arranged below the individual rails (10, 11) of the respective lines (2, 3) are arranged continuously in the rail longitudinal direction (23) and connected to each other. The crossing railroad crossing according to any one of claims 1 to 6 , wherein the railroad crossing is formed by support beam portions (15a, 15b, 16a, 16b).

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