WO1997013037A1

WO1997013037A1 - Level crossing

Info

Publication number: WO1997013037A1
Application number: PCT/AT1996/000175
Authority: WO
Inventors: Bernhard Neumann
Original assignee: Gmundner Fertigteile Gesellschaft Mbh & Co. Kg
Priority date: 1995-10-03
Filing date: 1996-10-01
Publication date: 1997-04-10
Also published as: EP0853706A1; AT404266B; JP3280674B2; EP0853706B1; JPH11500504A; DE59605514D1; ATA163495A; ATE194181T1

Abstract

A level crossing in which the roadway surface in the vicinity of the track is formed by inner and outer roadway slabs (3, 4). The inner roadway slabs (3) form an unsupported bridge across the space between the rails (5) of the track (2) and are provided along both their edges extending along the rails with projecting supporting ridges (7) by which the inner roadway slabs are supported via intermediate elastic contoured lower supports (8) made from rubber or plastic on the rail feet, and via intermediate elastic contoured upper supports (9) laterally against the rail stems (11) and upwards against the rail heads (12). The outer roadway slabs (4) are provided on their edge facing the rail with supporting ridges (15) and mounted or supported on the rails. The lower supports (8; 8') are joined to the supporting ridges (7) of the inner slabs (3; 3'; 3'', 3''') at least in the mounting section of the supporting ridges on the lower supports. Similarly, the upper supports elements (9; 9') are joined to the supporting ridges (15) of the outer roadway slabs (4; 4', 4'', 4''') at least in the mounting section of the supporting ridges on the lower supports.

Description

Level railroad crossing

The invention relates to a railroad-level crossing, in which the carriageway in the track area is formed by one-piece inner and outer carriageway plates, the inner carriageway plates cantilevering the distance between the rails of a track and having projecting supporting ribs on their two edges running along the rails which the inner carriageway plates are supported on the rail feet with the interposition of elastic, profiled, lower support bodies made of rubber or plastic and with the interposition of elastic, profiled, upper support bodies are supported laterally against the rail webs and upwards against the rail heads, and the outer carriageway plates at least on their The edge facing the track also has supporting ribs and these supporting ribs are also mounted or supported on the rails in a manner corresponding to the inner carriageway slabs and on their outer edge f Foundation bodies are stored.

The use of elastic, profiled support bodies for the storage or support of the carriageway slabs on the rails has been known for a long time. For example, from DE 22 32 614 A a level crossing is known, in which the support bodies arranged on one side of the rail are formed in one piece, while the support bodies lying on the other side are formed in two lines and thus form upper and lower support bodies. WO 84/00 986 describes a level crossing in which upper support members are arranged on both sides of the rail head or rail web. Lower support bodies in the form of relatively thin molded pieces of rubber rest on the rail foot, which are glued to the rail foot or are connected to it in some other way. The application of these thin pads requires a considerable amount of work; such thin runs also bring about virtually no weakening of

Vehicle bumps because they are hardly compressible.

EP 16 869 A1 proposes a carriageway slab for a level crossing at the same track, in which the carriageway slab is supported on the sleepers at four locations, these locations on the carriageway slab having a plastic coating exhibit. On the side, the track slab is supported by a plastic coating on the rail web and on the rail head. However, this is not a carriageway slab that spans the distance between the rails.

Finally, from DE 23 50 759 A a two-part roadway plate is known which has an articulated rod in the middle, with rubber-elastic edge pieces being provided on the rail side, which are connected to the two-part roadway plate by bolts. The two-part design makes it easy to install the plate, but the mechanical stability and strength of a one-piece plate cannot be achieved.

When installing the carriageway slabs on the track, the support bodies are either inserted before the carriageway slabs are inserted, or are drawn into the space between the rail and the carriageway slab after the carriageway slabs are inserted. In both cases, the elastic support bodies must be compressed by compression in order to bring about the pretensioning of the support bodies required after assembly. This process requires clamping or pulling tools and is difficult to carry out in practice.

The object of the invention is to simplify and facilitate both the installation and the removal of the carriageway slabs or of their support bodies, without the support or

Impair the bearing function of the support body.

For the inner carriageway slabs, this object is achieved according to the invention in that the lower support bodies of the inner carriageway slabs are connected to the supporting ribs of the inner carriageway slabs at least in the section of the bearing of the supporting ribs on the lower supporting bodies.

For the outer carriageway slabs, this object is achieved in a corresponding manner according to the invention in that the lower support bodies of the outer carriageway slabs are connected to the supporting ribs of the outer carriageway slabs at least in the section of the bearing of the supporting ribs on the lower supporting bodies.

Through the measure according to the invention, the installation or removal of the inner and also the outer road slabs

significantly simplified and also shortened in time, since the respective lower support body need not be inserted or retracted.

Advantageously, the connection of the support ribs to the support bodies is achieved in that the lower support bodies with the support ribs via tongue and groove connections, e.g. Dovetail connections.

Another easy connection to the

Support ribs with the support bodies consists in that the lower support bodies are connected to the support ribs by gluing.

A connection of the support ribs to the support bodies is particularly advantageous, in which the lower support bodies are connected to the support ribs by vulcanization.

In an embodiment of the invention it is provided that the lower support body extend over the entire underside of the inner or outer roadway plates and in this on the

Underside of the section of the roadway plates are connected to the roadway plates. This advantageously protects the underside of the carriageway slabs against corrosion. In addition, a weight reduction can be achieved, which is essential for the installation and removal of the road slabs

facilitated.

A further improvement in the connection between the support ribs and the support bodies can be achieved if the section of the lower support bodies which extends over the entire underside is at least partially penetrated by a reinforcement of the inner or outer carriageway slabs or is connected to it. This also provides a particularly good protection against corrosion in this section

Reinforcement achieved.

It can also be advantageously provided that the lower support bodies on the underside of the support ribs extend at most to the lower edge of the support ribs on the rail side and that the lateral support against the rail webs is only provided by the upper support bodies.

It has also proven to be advantageous if the upper support bodies protrude downward beyond the lower edge of the support ribs on the rail side.

A particularly effective edge and corrosion protection also results if the lower support body at least partially extend upwards over the lower edge of the end faces of the inner or outer roadway plates lying in the transverse direction of the rails in a recess of these roadway plates and are connected to the roadway plates.

A structurally advantageous embodiment of the level crossing according to the invention is characterized in that the inner and outer carriageway plates have recesses in the area of the fastening of the rails to the sleepers as a space for rail fastening elements, and the section of the lower support body located on the underside of the carriageway plates in the mentioned recesses over the fasteners to the rail located there and is also connected there to the inner and outer roadway plates.

Another advantageous embodiment of the level crossing according to the invention is characterized in that the lower

Support bodies on at least part of their sides facing the rails, e.g. are provided on the side facing the rail foot with a plurality of deep grooves running side by side. Through these grooves, which in practice

can preferably have a depth of approximately 2 mm and a width of approximately 2 mm, although larger dimensions and possibly also somewhat smaller dimensions are possible, the adaptation of the support bodies to surfaces on which these support bodies come to rest is facilitated, and the hold against undesired slippage of these support bodies on the surfaces on which these support bodies abut is further improved. By means of these grooves, good deformability or adaptability of the surfaces of the support bodies provided with the grooves is achieved without undesirably large deformations or crushing in the massive part of the support bodies.

This good adaptability also enables one

Support body shape to use for different rail cross-sectional shapes. Grooves are preferably provided, which in

The rails run in the longitudinal direction. However, transverse grooves can also be provided.

The invention will be further explained below using exemplary embodiments with reference to the drawing

explained. Show it:

Fig.1 shows an embodiment of a rail-like railroad crossing ganges in a cut made transversely to the longitudinal extent of the rails of the track;

2 shows a portion of this level crossing in a section taken according to Figure 1 on an enlarged scale;

3 shows a further embodiment of a level crossing in a section analogous to FIG. 1;

4 shows a section along the line IV-IV in Figure 3;

5 shows an embodiment of a level crossing similar to FIG. 1 in a section analogous to FIG. 1;

6 shows a section along the line VI-VI in Figure 5;

7 shows an embodiment of a similar to FIG

Level crossing in a section analogous to Fig.1;

8 shows a section along the line VIII-VIII in Figure 7;

9 shows a partial area of the level crossing according to FIG. 7; and

10 shows a section along the line X-X in Fig.9.

In the embodiment of a railroad-level crossing 1 shown in FIGS. 1 and 2, a roadway in the region of a track 2 is formed by inner roadway plates 3 and outer roadway plates 4. The inner carriageway slabs 3 cantilever the distance between the rails 5 of the track 2 and have 6 supporting ribs 7 on their two edges running along the rails 5. The inner road plates 3 are with these support ribs 7 with the interposition of elastic, profiled lower support bodies 8 on the

Rail feet 10 mounted and supported laterally against the rail webs 11 and upwards against the rail heads 12 with the interposition of elastic, profiled upper

Support bodies 9 from. The outer carriageway slabs 4 have support ribs 15 on their edge 14 facing the track 2 and are supported with them in a manner analogous to the inner carriageway slabs 3 with lower support bodies 16 on the rail feet 10 and laterally against the rail webs 11 and upwards against the rail heads 12 supported with upper support bodies 17. The outer roadway plates 4 are on their outer edge 18

Foundation bodies 19 stored.

As can be seen in particular from FIG. 2, the lower support bodies 8 of the inner roadway plate 3 are through, for example two, dovetail connections 20 with the support ribs 7 in the bearing section 21 of the support ribs 7 on the lower support bodies 8 connected. In the same way, the lower ones

Support body 16 of the outer track plate 4 with two dovetail connections 22 connected to the support ribs 15 of the outer track plates 4 in the bearing section 23 of the support ribs 15 on the lower support bodies 16. Furthermore, it can be seen that the side of the support body 8 facing the rail 5 runs essentially vertically and is flush with the edge 6 of the support rib 7, which also runs essentially vertically. The upper support body 9 protrudes downward beyond the lower edge 13 of the support ribs 7, 15 on the rail side, so that an overlap area is formed, via which additional horizontal forces can be transmitted.

The inner and outer road plates 3 and 4 can

Be cement concrete slabs or plastic concrete slabs, especially polyester concrete. In the case of concrete slabs, there is usually one running along the edge of the same

Steel frame (not shown) provided. If the plates are made of plastic concrete, especially polyester concrete, a steel frame is not necessary; in both cases, a reinforcement 24 made of steel, GRP or CFRP rods or strips is provided in the plates. In the case of plastic concrete slabs, it is advantageous to provide a grain-rough layer on the upper side, which forms the road surface, which creates a grippy road surface.

In the embodiment of a level crossing 1 shown in FIGS. 3 and 4, the lower supporting bodies 8 of the inner carriageway plates 3 'extend on both sides over their entire underside 25, which in this example is concavely curved, the area of the curvature being due to the elastic material of the extended section 26 of the support body 8 'is filled, which partially encloses the lower part of the reinforcement 24. In this way, on the one hand, a connection between the carriageway slab 3 'and the section 24 and, on the other hand, a corrosion-inhibiting and sound-absorbing effect is achieved. The connection of the support body 8 'or of the extended section 26 to the roadway plate 3' takes place in this embodiment by gluing or, in the case of the use of rubber as an elastic material, by vulcanization. All suitable adhesives or adhesive methods can be used Connection can be applied. In this embodiment, the lower support bodies 8 ', 16' extend to the lower edge of the support ribs 7, 15 on the rail side, and the lateral support against the rail webs 11 takes place only by the upper support bodies 9 ', 17'. The outer roadway plates 4 'or their lower support body 16' are designed in the same way as the inner roadway plates 3 'or their support body 8', so that their detailed description is unnecessary.

5 and 6 show an embodiment similar to FIG. 1, in which the connection between the lower support body 8 and the inner roadway plate 3 ″, or the lower support body 16 and the outer roadway plate 4 ″, by means of a dovetail connection 20 or 22 takes place. In this case, the reinforcement 24 is formed, for example, by a plurality of I-beams 27 lying transversely to the rails 5, which essentially extend over the width of the inner carriageway slab 3 ″. Between these I-beams 27, smaller and short I-beams 28, for example, are additionally embedded in both end sections of the carriageway slab 3 ″, which transmit the forces in the transition region to the support bodies 8, 9. The reinforcement 24 of the outer carriageway slabs 4 ″ is carried out as in FIG. 2 by bars or bands.

7 to 10 show an embodiment similar to FIG. 3 with a curved underside 25 of the inner carriageway plate 3 '' ', and with a reinforcement 24 similar to FIG. 5 by means of I-beams 27 and 28, the I-beams 27 at least partially penetrate the extended section 26 of the lower support body 8 '. The lower support body 8 'or its extended section 26 are again connected to the inner roadway plate 3' '' by gluing or vulcanization. The outer roadway plates 4 '' 'and their support bodies 16', 17 'are designed in the same way as the inner roadway plates 3' '' and their support bodies 8 ', 9', so that they are not dealt with in more detail.

As can be seen from FIGS. 9 and 10, the inner and outer carriageway plates 3 ''',4''' have recesses 29 in the fastening area of the rails 5 with the sleepers (not shown) as space for fastening elements 30, the lengthened Section 26 of the lower support body 8 'or 16' extends over the fastening elements 30 to each rail 5 and ver with the inner and outer track plates 3 "", 4 "" is bound, so that the fasteners 30 are protected against the ingress of water. From FIG. 10 it can be seen that the extended section 26 extends partially above the lower edge 31 of the end faces 32 lying in the transverse direction of the rails 5 in a recess 33 thereof, which results in effective edge and corrosion protection.

Claims

Claims:

1. The same level crossing, where the carriageway in the track area is made up of one-piece inner and outer

Roadway plates (3, 4) is formed, the inner

Roadway plates (3) span the distance between the rails (5) of a track (2) in a self-supporting manner and projecting support ribs on their two edges running along the rails (5)

(7) with which the inner road plates (3) with the interposition of elastic, profiled, lower support body

(8) made of rubber or plastic on the rail feet (10) and with the interposition of elastic, profiled, upper support bodies (9) are supported laterally against the rail webs (11) and upwards against the rail heads (12), and the outer track plates ( 4) also have support ribs (15) at least on their edge facing the track (2) and with these support ribs (15) are supported or supported on the rails (5) in an analogous manner to the inner track plates (3) and on their outer edge (18) are mounted on foundation bodies (19), characterized in that the lower support bodies (8; 8 ') of the inner roadway plates with the supporting ribs (7) of the inner roadway plates (3; 3'; 3 ''; 3 ' '') are connected at least in the section of the bearing of the support ribs on the lower support bodies.

2. The same level crossing at which the carriageway in

Track area through one-piece inner and outer

Roadway plates (3, 4) is formed, the inner

(8) made of rubber or plastic on the rail feet (10)

stored and with the interposition of elastic, profiled, upper support body (9) laterally against the rail webs (11) and upwards against the rail heads (12), and the outer carriageway slabs (4) at least on their edge facing the track (2) as well Have support ribs (15) and with these support ribs (15) in an analogous manner to how the inner carriageway slabs (3) are also supported or supported on the rails (5) and are supported on their outer edge (18) on foundation bodies (19), characterized in that the lower support body (16; 16 ') of the outer carriageway plates are connected to the supporting ribs (15) of the outer carriageway plates (4; 4'; 4 ''; 4 ''') at least in the section of the bearing of the supporting ribs on the lower support bodies.

3. The same level crossing according to claim 1 or 2, characterized in that the lower support body (8; 8 ', 16; 16') with the supporting ribs (7, 15) via tongue and groove connections, e.g. Dovetail connections (20, 22) are connected.

4. The same level crossing according to claim 1 or 2, characterized in that the lower support body (8; 8 ', 16; 16') with the supporting ribs (7, 15) are connected by gluing.

5. The same level crossing according to claim 1 or 2, characterized in that the lower support body (8; 8 ', 16; 16') with the supporting ribs (7, 15) are connected by vulcanization.

6. The same level crossing according to one of claims 1 to 5, characterized in that the lower support body (8; 8 ', 16; 16') over the entire underside (25) of the inner and outer carriageway plates (3; 3 '; 3 ''; 3 '' ', 4; 4'; 4 ''; 4 '' ') and in this section (26) located on the underside of the roadway plates are connected to the roadway plates.

7. The same level crossing according to claim 6, characterized in that the over the entire bottom (25) extending portion (26) of the lower support body (8; 8 ', 16; 16') at least partially of a reinforcement (24) of the inner or outer roadway plates (3; 3 '; 3' "; 3 '' ', 4; 4'; 4 '';

4 '' ') is penetrated or connected to it.

8. The same level crossing according to one of claims 1 to 7, characterized in that the lower support body (8; 8 ', 16; 16') on the underside of the supporting ribs (7, 15) at most up to the lower edge (13) of the rail Support ribs (7, 15) extend and the lateral support against the rail webs (11) only through the upper support body (9, 17).

9. The same level crossing according to claim 8, characterized in that the upper support body (9, 17) protrude downward beyond the lower edge of the support ribs on the rail side.

10. The same level crossing according to one of claims 6 to

9, characterized in that the lower support body (8; 8 ', 16; 16') at least partially over the lower edge (31) of the transverse faces of the rails (5) end faces (32) of the inner or outer track plates in one Extend recess (33) of these slabs and with the

Roadway plates are connected (Fig.10).

11. The same level crossing according to one of claims 6 to

10, characterized in that the inner or outer

Roadway plates (3 '' ', 4' '') in the area of the fastening of the rails (5) to the sleepers have recesses (29) as space for rail fastening elements (30), and the section (26 ) of the lower support body (8 ', 16') in said recesses (29) over the fastening elements (30) up to there

Rail (5) is sufficient and is also connected there to the inner or outer carriageway plates (3 '' ', 4' '').

12. Rail-level crossing according to one of claims 1 to 11, characterized in that the lower support body (8, 8 '; 16, 16') at least on part of their sides facing the rails (5), e.g. are provided on the side facing the rail foot (10) with a plurality of deep grooves running side by side.