WO2007000417A1 - Track girder for a magnetic levitation railway - Google Patents

Abstract

A track girder of a magnetic levitation railway comprises a track slab (1) on which functional elements for guiding a vehicle of the magnetic levitation railway are arranged. When looking at a cross-section of the track girder, at least one web (2), preferably two webs (2), are arranged on the slab. The slab is connected to a foundation (4). The web (2) is rigidly connected to the track slab (1) and to the foundation (4) and is configured, in the longitudinal direction of the girder, in the shape of separate lamellae (3) which can be displaced in relation to each other.

Description

 CHASSIS CARRIER FOR A MAGNETIC WELDING TRACK

The present invention relates to a guideway carrier of a magnetic levitation railway with a track plate on which functional elements for guiding a vehicle of the magnetic levitation are arranged and with at least one web in cross-section of the guideway carrier, preferably two webs, which are arranged on the plate and on which the plate with a Foundation is connected.

Ground-level track supports for magnetic levitation trains are usually designed as plates, which are mounted on support disks, which in turn are firmly connected to the foundation. The plates are usually clamped with a complex construction on the support discs and secured against lifting. For larger spans also hollow box profiles, Pi- (π-) plates or solid cross sections are used, which are discretely supported at the carrier ends. The disadvantage is that you have to use complex and expensive foundations, mostly pile foundations. On the other hand, due to the thermal expansion complex bearings with elastic intermediate bearings, detentions and safeguards against tipping necessary. Especially with relatively short straps with a length between 5 and 10 meters, this storage is also very expensive and therefore requires another solution to be used more economically.

It is therefore an object of the present invention to provide a guideway carrier which, even with short lengths, is more cost-effective on a foundation. is still storage and requirements such as temperature-induced thermal expansion for a reliable operation of the magnetic levitation met.

The present invention is achieved with a guideway carrier having the features of claim 1.

An inventive guideway carrier of a magnetic levitation railway consists of a track plate, which forms an upper belt of the guideway carrier. At the track support plate at least one, preferably two webs are arranged, which connect the track plate with the foundation. According to the invention, the web is rigidly connected to both the track plate and the foundation. In order to accommodate thermal expansion of the guideway carrier relative to the foundation, it is provided that seen in the longitudinal direction of the carrier, the web or the webs in the form of separate slats is / are formed. The fins are designed to be displaceable relative to one another. The mutually facing side surfaces of the slats thus move to each other. Even with a firm connection of the web with the foundation can be carried out at an extension of the track plate relative to the foundation displacement of the webs and withstand a continuous load, since the voltages occurring at the terminals of the corresponding components remain relatively small. A deterioration of the durability will not take place. The slats can either run through the entire bridge from the foundation to the track plate. But they can also be provided only in a region of the web, if these are then sufficient to be able to absorb the stresses occurring due to shifts in thermal expansions.

The slats form webs of the guideway carrier in the embodiment according to the invention. They can be different in width and long. The Stands between the individual slats are also not fixed. They arise, inter alia, from the statics and the required load capacity of the guideway carrier.

Advantageously, the lamella webs of a hollow box-shaped carrier. A carrier, which is designed as a hollow box, has a very high intrinsic stability without requiring an excessive mass of building material, such as concrete or steel for this purpose.

The guideway support may be embodied in other embodiments as a π-shaped or T-shaped carrier. Moreover, it is of course possible that the carrier has a solid cross-section. Here, the carrier has a substantially T-shaped cross-section and this results in only a web of the carrier.

In order to obtain a uniformly shaped carrier, it is advantageous if the lamellae are arranged over the entire length of the carrier. In particular, a uniform distribution of the slats is appropriate in this case. The slats can have the same or different wall thicknesses. Also, the distances between the individual slats are the same or different depending on the requirements of the wearer.

The lamellae can also be arranged in one or more subregions of the length of the carrier. Such a design of the carrier is useful if it is assumed that the maximum elongation will take place, in particular in the end regions of the carrier, and that the lamellae are therefore needed, in particular in these end regions. In a central region, therefore, no or at least only a few fins are required. Advantageously, the lamellae consist of at least two webs and a slot arranged therebetween. The slot spaced the two webs from each other and thereby allows a relative movement of the webs to each other, without significantly affecting the stability.

If the slit viewed in the longitudinal direction of the carrier is narrower than the webs, this measure also has the effect that the stability of the carrier is largely retained and nevertheless the desired mobility is maintained.

It is particularly advantageous if the lamellae and / or the remaining carrier cross-section are concreted together with the track plate in one casting. There is no risk that the lamellae and the carrier cross-section could be damaged at their contact points at an elongation and thus displacement of the slats. It is particularly advantageous if the lamellae already preformed during the concreting of the carrier, i. are provided in the formwork with. Alternatively, it can also be provided that the lamellae are produced subsequently by milling or grinding or cutting of the carrier.

If the lamellae and / or the rest of the carrier cross-section are made of cast-in-place concrete, transport of the carrier is not necessary and, in particular, the shape of the carrier can be adapted to the individual requirements at the construction site.

Are the slats and / or the rest of the carrier cross-section individually made with the track plate and then connected together or they are in particular subsequently concreted together, the result is a particularly cost-effective design, which can be particularly adapted individually to the requirements of the site. The track plate can be arranged in the required position on the slats, which are mounted on the foundation. If the lamellae and / or the rest of the carrier cross-section are joined together with the track plate via connecting means, individual production is also possible here. In particular, in a repair of the guideway such an embodiment may be of particular advantage, since the slats and the track plate can be removed again from each other or can be adjusted to each other. However, the connection means can also be insoluble. A secure connection between the track plate and the slats and / or the rest of the carrier cross-section is thereby easily achieved. The connecting means may be connection iron or bracket or similar compounds. If the connection means are to be detachable again, screws and dowels are suitable for this purpose.

If the slats and / or the rest of the carrier cross-section with the foundation non-positively and / or positively joined together, so a very simple and inexpensive connection is created. This can in turn be done by connecting iron or strap or similar connecting means which protrude from the carrier or from the foundation and then connect the carrier to the foundation. The non-positive and / or positive connection can advantageously be done by concreting together. Fasteners are used either as permanent or detachable components. As detachable components, for example, screws or dowels in question. In particular, subsequent corrections can be made or the compounds can be solved to realign the wearer.

When setting up the carrier advantageously a gap between the support and the foundation is obtained, which is filled after adjustment of the carrier with potting material. The carrier is thus fixed in position. If a separating layer is arranged between the lamellae and / or the remaining carrier cross-section and the foundation, which prevents a connection with a potting material, a later release and readjustment of the carrier relative to the foundation is possible. Repairs, which are required for example by setting the foundation or by an accident, can be carried out very easily and inexpensively.

If the lamellae and / or the rest of the carrier cross-section, ie in particular the web of the carrier to the outside and / or inwardly directed feet, so is a larger spread of the distance surface and if necessary or a corresponding embodiment, a recording of frictional connection means possible.

Advantageously, projections and / or recesses are arranged on the lamellae and / or the remaining carrier cross-section, to which adjusting devices engage. The carrier can thus be set up on the foundation according to the intended roadway course and then advantageously fixed. The projections or recesses in this case serve to enable appropriate tools to engage the adjusting devices.

Depending on requirements, the carrier can be made of concrete, in particular as precast concrete element, of in-situ concrete or of steel. The corresponding material can be used for the complete production of the carrier or for subregions of the carrier. Also combinations within a carrier are possible. For example, the area of the webs can be made of steel and the top flange of the carrier, that is to say the track plate, can be made of concrete. Further advantages of the invention are described in the following exemplary embodiments. It shows:

Figure 1 is a side view of a carrier with a plurality of fins

Figure 2 is a side view of a carrier with individual

slats

Figure 3 is a side view of a carrier with closed blades

Figure 4 is a schematic representation of a longitudinal extension of a carrier in the side view

Figure 5 to 10 different carrier cross-sections.

FIG. 1 shows a side view of a carrier according to the invention. The guideway support consists essentially of a track plate 1 and one or more, in particular two webs 2, which are arranged on the track plate 1 and project from this dull or at right angles. The webs 2 have lamellae 3 which are relatively elastic in the longitudinal direction of the carrier 1. To obtain the elasticity, they have a relatively small width B seen in the longitudinal direction of the carrier. In the embodiment of Figure 1, the slats 3 are formed by the fact that the web 2 is provided with slots 5 which sever the webs 2 and thus form the individual slats 3. The slots 5 are usually made very narrow so that they do not significantly affect the strength of the wearer and still allow the mobility of the wearer. The web 2 or the lamellae 3 are arranged on a foundation 4 at the end which faces away from the track plate 1. All or individual webs 2 or slats 3 are firmly connected to the foundation 4. This means that the storage of the guideway support on the foundation 4 immobile and thus constructive and structurally very simple and inexpensive.

The expected elongation of the guideway carrier takes place due to heating during driving or by solar radiation substantially in the area of the track plate 1. By the slats 3, which have a low rigidity in the longitudinal direction of the guideway carrier and are designed permanently elastic, the expansion is carried out by a displacement of the slats 3 in the region of the track plate 1 in the longitudinal direction of the guideway carrier. In order to compensate for the greater extent at the ends of the guideway carrier compared to the central region of the guideway carrier without unduly reducing the strength of the carrier itself, it is provided that the slats 3 have different widths B in a preferred embodiment. In the embodiment of Figure 1, the lamellae 3 are accordingly carried out in the edge regions with the same width B, while the middle lamella is much wider.

The slots 5, through which the slats 3 are formed in the webs 2 extend within the webs 2, starting from the edge of the carrier in the region of the foundation 4 to just below the track plate 1. It thus becomes a very good connection of the track plate 1 with the web 2 created. Of course, the slots 5 can also extend to the track plate 1 or even in the track plate 1, when a particularly high elasticity of the slats 3 are required. The guideway support 1 according to FIG. 1 can be concreted directly onto the foundation 4 with connecting elements such as connection reinforcements. For a later repair of the guideway carrier, however, it is advantageous if a separating layer 6 between guideway support and foundation 4 is provided. The guideway carrier is arranged in this case with releasable fasteners on the foundation 4. These may be, for example, screws and dowels anchoring the guideway carrier in the foundation 4.

FIG. 2 shows a side view of a further embodiment of the invention. The guideway carrier has broken webs 2 in this embodiment. Individual slats are thus removed from the region of the webs 2, so that gaps are formed. These gaps save on the one hand building material and on the other hand, for example, they allow a game change, as animals can go through the corresponding gaps in the route. The individual lamellae 3 are in turn each arranged with fixed bearings on the foundation 4. With an expansion of the track plate 1, the slats 3 move in the region of the track plate 1 and thus compensate for stresses. Due to the small width of the slats 3, these are permanently elastic, without causing undue tension within the wearer. The middle region of the webs 2 has a very wide lamella 3 ', since in this area only small strains of the track plate 1 are to be expected. The blade 3 ¹ must therefore be elastic or not very low.

In addition, in the example of Figure 2, "x" indicates that the individual lamellae 3 and 3 'are connected as a fixed bearing to the foundation, and there is no displacement in the area of the support in the area of the foundation 4. This also applies for the remaining embodiments, even if it is not shown there as "x" for reasons of clarity. While in FIG. 1 and FIG. 2 the gaps 5 open at the carrier end, they are arranged within the webs 2 in the embodiment of FIG. They thus do not open at the lower end of the carrier but form closed slots in the webs 2. This embodiment has the advantage that a continuous surface in the region of the foundation 4 is present. The attachment of the guideway carrier on the foundation 4 as well as the transport of the carrier can be carried out in such an embodiment easier. The elasticity of the carrier in the longitudinal direction is not adversely affected by this. Also in this embodiment can be influenced by different positions of the slot 5 and a different width of the slot 5, the width B of the blade 3. The elasticity of the blade 3 can also be influenced by the length L of the slot 5 beyond. Thus, a guideway beam is conceivable which has either the same length or in the region of its ends longer slots 5 and thus longer slats 3 to increase the elasticity in this area relative to a more central region of the guideway. The arranged at the edge of the guideway carrier slots 5 are longer in this case than the middle slots of the guideway carrier.

In Figure 4, the movement of the guideway carrier is schematically sketched at a longitudinal extent. Again, this is a section of a side view. Dotted the track support is shown when it expands due to heat. Due to the fixed mounting of the guideway carrier on the foundation 4, a movement of the blade 3 on the foundation 4 is not possible. However, when the track plate 1 expands, the lamella 3 shifts in the area of the track plate 1 in the longitudinal direction of the carrier, as shown by the double arrow and the dashed representation of the guideway carrier. In the figures 5 to 10 different carrier cross sections are shown. FIG. 5 shows a π-shaped carrier. At the track plate 1, two webs 2 are arranged, which project at right angles from the track plate 1. The webs 2 are fixedly arranged on the foundation 4. Through slits 5, which begin at the, the foundation 4 facing the end of the webs 2 and extend into the area of the track plate 1, slats 3 are formed, which allow an extension of the track plate 1 with respect to the foundation 4, as they the track plate 1 with connect elastically to the foundation 4. The webs 2 are arranged substantially at right angles. It is in such a cross section to a relatively easy to produce profile, which, for example, standing upside down, that is, the track plate 1 down, is concreted and de-energized. The slots 5 may already be provided in the formwork for forming the slats 3. However, they can also be subsequently introduced, for example, by grinding, milling or sawing in the webs 2.

In the embodiment of Figure 6 is again a carrier cross-section, which is similar to Figure 5. In contrast to FIG. 5, this carrier of FIG. 6 has outwardly directed feet 7, which increase the footprint of the carrier on the foundation 4. It is thereby obtained a particularly stable carrier.

According to Figure 7, the webs are connected to a lower chord or inwardly directed feet. This creates a hollow cross-section, which is particularly torsionally stiff. On the other hand, an elasticity of the carrier in the longitudinal direction of the carrier is again generated by slots 5 which form lamellae 3. The slots 5 extend in this embodiment from near the track plate 1 to the end of the guideway carrier in the area of the foundation. 4 Figure 8 shows a cross section of a carrier similar to the cross section of Figure 7, in which the footprint of the support is further widened by feet 7. It is a particularly high stability of the carrier causes this.

FIG. 9 shows a T-shaped carrier. It is a solid cross section. Accordingly, contrary to the previous embodiments, in which two webs 2 were always present in cross section, only one web 2 is provided here. The web 2 is in turn slotted, so that individual slats 3 arise, which make the track plate 1 with respect to the foundation 4 without undue tension längendehnbar.

In Figure 10, in addition to the embodiment of Figure 9, the footprint on the base 4 of the support by feet 7 is increased. Furthermore, it is indicated here that fastening means 8 are provided in recesses 9 of the feet 7 in the feet 7. The guideway carrier is fixedly connected via these fastening means 8, which are, for example, screws or dowels with the foundation 4 as in the other Ausführungsbaispielen also in the manner of a fixed bearing. An elastic support of the carrier on the foundation 4 is not required due to the formation of the webs 2 as slats 3.

In the embodiment of Figure 10, a fastening of the track plate 1 on the web 2 is also indicated with dotted lines. The attachment can be either solvable or fixed. As a detachable connection to offer screws and dowels. If the connection is to be unsolvable, it is for example provided in the production that reinforcements protrude from the track plate 1 or the web 2 and to this reinforcement the other component, that is the web 2 or the track plate 1 is concreted. The invention is not limited to the illustrated embodiments. Combinations or other cross-sectional shapes of the carrier are also within the scope of the claims components of the present invention.

Claims

Patent claims 1. guideway support of a magnetic levitation railway with a track plate (1) on which functional elements for guiding a vehicle of the maglev train are arranged and with at least one web (2), preferably two webs (2), which are arranged on the board in the cross-section of the guideway beam and via which the plate is connected to a foundation (4), characterized in that the web (2) is rigidly connected both to the track plate (1) and to the foundation (4) and separated in the longitudinal direction of the carrier Slats (3) is formed, which are mutually displaceable. 2. Track supports according to the preceding claim, characterized in that the slats (3) webs (2) of a hollow box. 3. guideway carrier according to one of the preceding claims, characterized in that the lamellae (3) webs (2) are a Pi-shaped carrier. 4. guideway carrier according to one of the preceding claims, characterized in that the lamellae (3) of the web (2) are a T-shaped carrier. 5. guideway carrier according to one of the preceding claims, characterized in that the slats (3) are arranged over the entire length of the carrier. 6. guideway support according to one of the preceding claims, characterized in that the lamellae (3) are arranged in one or more subregions of the length of the carrier. 7. guideway carrier according to one of the preceding claims, characterized in that the lamellar structure consists of at least two webs (2) and a slot (5) arranged therebetween. 8. guideway carrier according to one of the preceding claims, characterized in that the slot (5) viewed in the longitudinal direction of the carrier is narrower than the slats (2). 9. guideway support according to one of the preceding claims, characterized in that the slats (3) and / or the rest of the carrier cross-section with the track plate (1) are cast together in one piece. 10. guideway support according to one of the preceding claims, characterized in that the slats (3) and / or the rest of the carrier cross-section are made of in-situ concrete. 11. guideway carrier according to one of the preceding claims, characterized in that the lamellae (3) and / or the rest of the carrier cross-section with the track plate (1) individually prepared and then connected to each other, in particular subsequently post-concreted. 12. guideway carrier according to one of the preceding claims, characterized in that the lamellae (3) and / or the remaining carrier cross-section with the track plate (1) are joined together by means of connecting means. 13. Track support according to one of the preceding claims, characterized in that the slats (3) and / or the rest of the carrier cross-section with the foundation (4) non-positively and / or positively joined together. 14. guideway support according to one of the preceding claims, characterized in that the lamellae (3) and / or the rest of the carrier cross-section with the foundation (4) non-positively and / or form-fitting together or by means of connecting elements (10) are connected. 15. guideway carrier according to one of the preceding claims, characterized in that between the slats (3) and / or the remaining carrier cross-section and the foundation (4) a gap is arranged, and the positive and / or positive connection after adjusting the guideway carrier a potting is made. 16. guideway carrier according to one of the preceding claims, characterized in that between the slats (3) and / or the other carrier cross-section and the foundation (4) a separating layer (6) is arranged, which prevents a connection with a potting material, so that a later solve and readjust is possible. 17. track carrier according to one of the preceding claims, characterized in that the lamellae (3) and / or the remaining carrier cross-section with outwardly and / or inwardly directed feet (7) for greater spreading of the footprint and for receiving the positive connection means (8) are equipped. 18. guideway carrier according to one of the preceding claims, characterized in that the lamellae (3) and / or the rest of the carrier cross-section projections and / or recesses (9) for receiving adjusting devices. 19. Track support according to one of the preceding claims, characterized in that the carrier is made of concrete, in particular at least partially as a precast concrete part. 20. guideway carrier according to one of the preceding claims, characterized in that the carrier is at least partially made of cast-in-situ concrete. 21. Track support according to one of the preceding claims, characterized in that the carrier is at least partially made of steel.