EP3221518B1 - Sectional lane-supporting bridge, and method for laying a sectional lane-supporting bridge - Google Patents

Description

The invention relates to a collapsible track carrier bridge with a track carrier and a launching support. Further objects of the invention form a laying device with which the collapsible track carrier bridge can be laid, a laying vehicle and a method for laying the collapsible track carrier bridge.

Dismountable track girder bridges are used in both the military and in civilian areas and serve as mobile temporary bridges, usually for be used for a limited time, which is why they should be as fast as possible and degradable. These bridges usually have track carriers which form the entire roadway or a part thereof. The track carriers are therefore usually made of a material with a high strength. For this reason, the weight of the track carrier is generally also very high, so that when laying high leverage must be absorbed and therefore only small spans can be achieved.

In order to increase the achievable spans, it is known to use Vorbauträger. The launch vehicle is used as a laying aid for the track carrier. In the process, the launching vehicle is laid first so that it bridges the entire area to be spanned. He can carry the weight of the track carrier, so that they can be supported when laying on the launching girder and thus no large counterweight is needed.

Since the areas to be bridged are often significantly longer than the load dimensions permitted in road traffic, it is known to disassemble the launching carrier and the track carrier in the longitudinal direction in each case into individual sections and to this extent allow easy transport. For example, the launching girders and the track girders are subdivided into several sections of equal length, which are lined up again when the bridge is laid and connected to the corresponding adjacent sections.

It is also known to lay such a collapsible track carrier bridge with a laying device. As a rule, this device has a laying arm which effects a propulsion onto the corresponding sections and advances the bridge successively over the area to be spanned, so that the individual sections can be connected to one another.

From the EP 0 447 825 A1 Such a track carrier bridge is known. This has front pontoons and track carrier and can be installed with a laying arm of a laying vehicle. The laying arm has two drives, of which the first acts on the launching beam and the second on the track carrier. For this reason, the track carrier must be adapted both to the laying arm and to the drive of the laying arm as well as to the intermediate frame. However, this involves the disadvantage that track carrier, laying arm and Vorbauträger can only be used as a unit, for example, the simple exchange or the use of track carriers other bridge systems is not possible.

The object of the invention is therefore to increase the application possibilities of a demountable track carrier bridge with different requirements.

The object is achieved with the features of the independent claims , advantageous developments and refinements are part of the dependent claims.

In a solution according to the invention, the track carriers and the launching carrier are connected to one another via intermediate adapters. Through the use of intermediate adapters, it is possible that the launching carrier and track carrier no longer have to be adapted to each other and can be laid with a launching carrier different track carrier.

It has proven to be advantageous if the track carrier and the intermediate adapter are detachably connected to each other. For example, the track carrier can be hung in the intermediate adapter. This offers the advantage that the different elements are transported independently of each other and space-saving on appropriate loading vehicles can be arranged. By hanging track carrier and intermediate adapter can be quickly and variably connected to each other at the installation and then fixed by means such that there is a firm connection and the elements can no longer move against each other.

Furthermore, it has been found to be positive if the intermediate adapter and the front-mounting are releasably connected to each other. The two elements can also be connected via rollers with each other, so that the intermediate adapter can be supported on the Vorbauträger on the rollers. Preferably, the pre-construction carrier for guides on, in which the rollers of the intermediate adapter are guided. About the roles of the intermediate adapter, in particular with connected track carriers, as simple as possible to be pushed over the already laid submersible beam to the other side shore. In an alternative embodiment, the launching support may also comprise rollers which are guided in corresponding guides on the intermediate adapter.

Furthermore, it has proved to be advantageous if the intermediate adapter is arranged spatially between or at least in sections between the prealcarrier and the track carrier. In this case, the intermediate adapter may be formed in a first embodiment such that the intermediate adapter connects two opposing track carrier each other. Both opposing track carriers are connected via a common intermediate adapter with the launching carrier, so that when laying the bridge, the track carriers can be moved from each other depending on the otherworldly shore. The intermediate adapter extends in this embodiment substantially, but not limited, above the preallocator. He concludes so in the vertical direction flush with the track carriers and forms along with the track carriers the carriageway of the bridge. The intermediate adapter also acts in particular as a center cover between the track carriers.

In another embodiment, several intermediate adapters may be used. An intermediate adapter can be arranged on each side of the apron carrier. For example, a single intermediate adapter can be arranged between the front carrier and each track carrier, so that two intermediate carriers can also be used per two track carriers per section. The track carriers can be moved or moved independently of each other in this case. Thus, the opposite track carrier are not coupled and therefore independently movable or can be laid.

In one embodiment, the track carrier and the intermediate adapter form the roadway, preferably the track carrier, the intermediate adapter and the Vorbauträger form the roadway. This may be the case, for example, when each track carrier is connected to a single intermediate adapter. The roadway-forming components are flush with each other in such a way that a substantially closed road surface is formed by them.

The track carriers preferably have an upper and a lower belt, wherein the upper and lower belts are connected to one another via struts and thus the track carrier can be reinforced by the struts. The upper belt preferably forms part of the roadway. In one embodiment, the track carriers have a substantially U-shaped cross-section.

Due to the variability of the intermediate adapter, the same front-end carrier can continue to be used for different track carriers. Furthermore, in addition to different track carriers and various intermediate adapter can be used. So it has proven to be advantageous if wider intermediate adapter be used with narrower track carriers or narrower intermediate adapter with wider track carriers. However, the invention is not limited to these embodiments, but depending on the requirements that are placed on the bridge, various intermediate adapter can be used with different track carriers.

Due to the adaptable intermediate adapter, the pre-body carrier does not have to be adapted to the different track carriers or the track carriers do not have to be adapted to the pre-body carrier. The side of the intermediate adapter which engages with the launching girder may therefore be structurally adapted to the launching girder. The side of the intermediate adapter engaged with the track carrier may be adapted to the corresponding track carrier. For example, it has proved to be advantageous if intermediate adapters have identical connection points for the launching carrier and different connection points for the track carriers. Thus, the demountable track carrier bridge described here also offers the possibility to convert already known bridges, which are laid, for example, with a launching carrier, or to combine track carriers of one bridge with a front carrier of another bridge.

It is particularly advantageous if the substructure carrier, intermediate adapter and track carrier are subdivided into individual pre-carrier, intermediate adapter or track carrier sections in planes which are aligned perpendicular to the laying direction. Particularly preferably, the length of the individual sections in the laying direction is substantially similar.

The bridge can be laid by a laying device with a laying arm. Since the great variability of the bridge is based on the different versions of the intermediate adapter and track carrier, can with the same Laying low at the same substructure carrier different intermediate adapter and / or track carrier are laid.

The laying arm is detachably connected to the prefabricated support. It has been found to be advantageous if the laying arm and the launching carrier are connected to each other via rollers. Particularly preferably, the laying arm has rollers which are guided in corresponding guides on the launching carrier. Furthermore, the pre-conveyor rollers and the laying arm may have corresponding guides.

The laying arm has at least one, preferably at least two drives. The first drive acts on the launching girder and can move it preferably, but not restrictively, linearly in the laying direction. The second drive acts on the intermediate adapter (s) and can move it preferably, but not restrictively, linearly in the laying direction. Particularly when the intermediate adapter are designed such that individual intermediate adapter are used for each track carrier, it has been found to be advantageous if the first drive on the one intermediate adapter and the second drive on the other intermediate adapter are independent of each other. This offers the advantage that both sides of the bridge can be laid at different speeds, which can lead to a reduction in the total laying time.

Furthermore, it is possible that only one drive is used for the intermediate adapter and the Vorbauträger. This is in particular conceivable, since the launching girder is essentially laid first and the drive is no longer used for laying the intermediate adapter for the launching girder. Furthermore, it is also conceivable that a drive or a plurality of drives, in particular for Laying the intermediate adapter, are arranged on the laying arm or on the intermediate adapters themselves.

In order to bring the bridge to its place of use, it can be transported on a laying vehicle. The corresponding laying device can also be arranged on the laying vehicle. On the laying vehicle, different track carrier, different Vorbauträger and various intermediate adapter can be arranged. Especially with large spans, however, it is necessary that also parts of the bridge can be transported on other vehicles and assembled at the installation site.

It has proven to be advantageous if several intermediate adapter, in particular intermediate adapter with different connection points for different track carrier, together with or without corresponding track carrier are included as a set. Although this increases the number of parts to be transported, it can only be decided at the place of use which intermediate adapters and which track carriers are used for the bridge. This is a great advantage, especially if military operations are to be conducted in unfamiliar terrain.

As already described, it has proven to be advantageous for the laying of the bridge when firstly the launching beam is laid. This is done by the preliminary support or the individual prealigner sections are successively moved by a corresponding drive over the section to be bridged. In this case, depending on the required bridge length, several of the individual substructure support sections can be lined up. As soon as it reaches the other side of the bank, the front end of the pre-construction girder is deposited there, thus spanning the entire section to be spanned. The individual sections are successively interconnected via funds, so that the most stable possible launching carrier, which, as soon as it was deposited on the other side shore, is essentially no longer displaceable.

The one or more intermediate adapters are then connected to the front carrier. It is also possible that the track carriers are already connected before with the corresponding intermediate adapters. About one or more drives then the intermediate adapter, optionally traversed with track carriers, over the section to be bridged. Here, the launching support can serve as a support for the intermediate adapter. The intermediate adapter sections or the track carrier sections can also be successively strung together during installation, in particular in the laying direction, so that the bridge grows successively in the laying direction until the first intermediate adapter section or the first track carrier section reaches the otherworldly bank. Have the intermediate adapter and the track carrier reaches the other side bank, so intermediate adapter and track carrier are essentially no longer displaceable.

Particularly preferably, the individual Vorbauträger-, Zwischenadapter- and track carrier sections are also connected together in the laying direction. That is, for example, the first front end support portion is connected to the front end of the second front end support portion at the rear end. The same applies to the subsequent sections and also to the track carrier sections and the intermediate adapter sections.

Fig. 1

Querschnitt durch die zerlegbare Spurträgerbrücke mit Verlegearm, wobei der Zwischenadapter die beiden Spurträger miteinander verbindet,

Fig. 2

Querschnitt durch die zerlegbare Spurträgerbrücke, mit Verlegearm, wobei auf der linken und auf der rechten Seite je ein Zwischenadapter zwischen dem Vorbauträger und dem entsprechenden Spurträger angeordnet ist und

Fig. 3a bis 3d

Seitenansicht eines Verlegefahrzeugs beim Verlegen des Vorbauträgers.

Further details and advantages of the invention will be explained below with the aid of the accompanying drawings of an embodiment. Show:

Fig. 1

Cross section through the demountable track carrier bridge with laying arm, wherein the intermediate adapter connects the two track carrier,

Fig. 2

Cross-section through the collapsible track carrier bridge, with laying arm, wherein on the left and on the right side each an intermediate adapter between the front carrier and the corresponding track carrier is arranged and

Fig. 3a to 3d

Side view of a laying vehicle during installation of the launching girder.

This in Fig. 1 embodiment shown relates to a collapsible track carrier bridge, in which two opposite track carrier are connected to each other via an intermediate adapter. In this case, a cross section through the bridge with a corresponding laying arm 8 is shown. The presentation of the Fig. 1 is axisymmetric, which is why all reference numerals, which are shown only on one side, at the same time refer to the corresponding part of the other side.

The two track carriers 1, 2 are arranged on the left or right of the launching carrier 14 and together with the intermediate adapter 7 form the roadway 19. The track carriers 1, 2 each have a top flange 3, 5 and a bottom flange 4, 6.

In the upper area, the track carriers 1, 2 are connected and fixed by means of the connection points 17, 18 with an intermediate adapter 7, so that they can not move relative to one another substantially. The connection points the intermediate adapter are adapted to the track carrier, so that it is possible that the track carrier 1, 2 need not be adapted to the Vorbauträger 14 and also not to the laying arm 8. This leads to a large variability of the bridge, since, for example, both wide and narrow track carrier can be connected to the same Vorbauträger depending on the application.

Since for laying the bridge for weight reasons, a launching beam 14 is required, the intermediate adapter 7 can be supported on the prealbox 14. The intermediate adapter 7 has for this purpose at the lower end on each side rollers 13, which are guided in corresponding guides 12 of the prealbox 14. About the rollers 13, the intermediate adapter 6 can be supported with the associated track carriers 1, 2 on the prealbox 14 and also moved in the laying direction V.

Below the apron carrier 14 of the laying arm 8 is arranged. This has rollers 9, which are guided in corresponding guides 15 of the prealbox 14. When laying the apron carrier 14 this can be supported on the rollers 9 and thus moved relative to the laying arm. In order to move the prealplate 14 and the intermediate adapter 14 in the laying direction V, the laying arm 8 in this embodiment has two drives 10 and 11. The drive 11 is engaged with the prealplate 14 and can move it. The drive 10 is connected to the arranged on the intermediate adapter 7 guides 16, just behind the rollers 13, in engagement. By the drive 10, the intermediate adapter 7, in particular together with the track carriers 1, 2, are also moved in the laying direction V.

Since first of the prealbox 14 is laid and the intermediate adapter 7 is then supported on the rollers on the already laid prealbox 14, first comes the drive 11 and then the drive 10 is used.

In Fig. 2 a corresponding embodiment of the track carrier bridge with two individual intermediate adapters 21, 22 is shown. As a result, the right intermediate adapter 21 with its connection point 118 must be adapted accordingly only to the right-hand track carrier 101. The track carrier 101 can be hung, for example, first in the right intermediate adapter and then fixed. The same applies analogously for the other side. In contrast to the embodiment of Fig. 1 , the demountable track carrier bridge can thus be made even more variable, since it is also conceivable that on the left and on the right side different track carriers 101, 102 can be used. In addition, in this embodiment, the prealigner forms part of the roadway 119, so that the bridge has a lower overall contour.

Both track carriers 101, 102 each have a top flange 103, 106 and a bottom flange 104, 106. The upper belts 103, 105 of the track carriers 101, 102 are correspondingly designed as roadway sections and, together with the intermediate adapters 21, 22 and the launching carrier 14, form a substantially continuous roadway 119. The track carriers 101, 102 can, but do not have to the same track carrier 1, 2 act in Fig. 1 are represented, since by the variable configuration of the connection points 117, 118 different track carrier 1, 2, 101, 102 can be connected to the intermediate adapters 21, 22, 7.

The intermediate adapter 21, 22 each have a roller 23, via which they are connected to the prealbox 14. The rollers 116 are for in corresponding guides 112 of the launching truss 14 out. In addition, in this exemplary embodiment, rollers 24 are arranged on the prealplate 14, which are in engagement with the guides 20 of the intermediate adapters 21, 22. Since the intermediate adapters 21, 22 are separated in this embodiment, corresponding to each of the intermediate adapters 21, 22, two bearing points or connection points must be provided with the Vorbauträger to accommodate the corresponding forces and moments.

To lay the bridge, both front-end girders and intermediate adapters with track girders must be moved in the laying direction V. The arranged on the laying arm 8 drive 10 stands with the guides 116 of the intermediate adapter 21, 22 in engagement. Due to the split design of the intermediate adapter 21, 22, the drive 10 may also be asymmetrical. This means that z. B. the one side of the arrangement can be moved and moved independently of the other side. As a result, the track carriers of the left and the right side can be moved independently, resulting in a shortening of the total laying time due to the possible parallel operation.

The process of laying is the example of the pre-body 14 hereinafter with reference to the Fig. 3a to 3d explained in more detail. The laying arm 8 is arranged on the laying vehicle 100, which stands on the bank of a section 200 to be bridged. The first section 14.1 of the launching girder 14 is moved by the laying arm 8 in the direction V. Successive sections 14.2, 14.3 are then added to the first section 14.1 and attached to the respective previous section. As soon as the first section 14.1 of the pre-launching carrier 14 reaches the other side bank 201, the pre-launching carrier becomes as in FIG Fig. 3d displayed, stored and then essentially not be moved. The rearmost end of the apron carrier 14 initially remains on the laying arm 8, since it serves as a support for the intermediate adapter 7, 21, 22, the following are also advanced to the otherworldly bank 201 via the launching superstructure 14 by means of the drive 10 and thereby supported by rollers on the launching girder.

Reference numerals:

1

track carrier

2

track carrier

3

upper chord

4

lower chord

5

upper chord

6

lower chord

7

between the adapter

8th

laying arm

9

caster

10

drive

11

drive

12

guide

13

caster

14

stem carrier

14.1

first sub-contracting section

14.2

second launching section

15

guide

16

guide

17

junction

18

junction

19

roadway

20

guide

21

between the adapter

22

between the adapter

23

caster

24

caster

100

laying vehicle

101

track carrier

102

track carrier

103

upper chord

104

lower chord

105

upper chord

106

lower chord

112

guide

115

guide

116

guide

117

junction

118

junction

119

roadway

200

to be bridged section

201

otherworldly shore

V

installation direction

Claims (20)

1. Sectional lane-supporting bridge having at least one lane support (1, 2, 101, 102) and one launching support (14),
   characterized in that
   the lane support (1, 2, 101, 102) and the launching support (14) are interconnected by way of an intermediate adapter (7, 21, 22).
2. Sectional lane-supporting bridge according to Claim 1,
   characterized in that the lane support (1, 2, 101, 102) and the intermediate adapter (7, 21, 22) are releasably interconnected.
3. Sectional lane-supporting bridge according to one of the preceding claims,
   characterized in that the launching support (14) and the intermediate adapter (7, 21, 22) are releasably interconnected.
4. Sectional lane-supporting bridge according to one of the preceding claims,
   characterized in that the intermediate adapter (7, 21, 22) and the launching support (14) are interconnected by way of rollers (13, 23, 24).
5. Sectional lane-supporting bridge according to Claim 4,
   characterized in that the launching support (14) and/or the intermediate adapter (7, 21, 22) have guides (16, 116) for the rollers (13, 23, 24).
6. Sectional lane-supporting bridge according to one of the preceding claims,
   characterized by two mutually opposite lane supports (1, 2, 101, 102) which are disposed on mutually opposite sides of the launching support (14).
7. Sectional lane-supporting bridge according to Claim 6,
   characterized in that
   the mutually opposite lane supports (1, 2, 101, 102) are connected to the launching support (14) by way of a common intermediate adapter (7).
8. Sectional lane-supporting bridge according to Claim 6,
   characterized in that the mutually opposite lane supports (1, 2, 101, 102) are in each case connected to the launching support (14) by way of an intermediate adapter (21, 22).
9. Sectional lane-supporting bridge according to one of the preceding claims,
   characterized in that the lane support (1, 2, 101, 102) and the intermediate adapter (7, 21, 22) for forming at least one part of the carriageway (19, 119) terminate in a mutually flush manner.
10. Sectional lane-supporting bridge according to one of the preceding claims,
    characterized in that the intermediate adapter (7, 21, 22) and the launching support (14) for forming at least one part of the carriageway (19, 119) terminate in a mutually flush manner.
11. Sectional lane-supporting bridge according to one of the preceding claims,
    characterized in that two lane supports (1, 2, 101, 102) by way of connection means are connectable to form a separate double lane-supporting bridge.
12. Laying device having a laying arm (8) and a sectional lane-supporting bridge according to one of the preceding claims.
13. Laying device according to Claim 12,
    characterized in that the laying arm (8) has at least one drive (10, 11).
14. Laying device according to Claim 12 or 13, characterized in that the laying arm (8) is releasably connected to the launching support (14).
15. Laying device according to one of Claims 12 to 14, characterized in that the laying arm (8) is connected to the launching support (14) by way of rollers (9).
16. Vehicle characterized by a laying device according to one of claims 12 to 15.
17. Method for laying a sectional lane-supporting bridge having at least one lane support (1, 2, 101, 102) and one launching support (14), characterized in that the lane support (1, 2, 101, 102) and the launching support (14) are interconnected by way of an intermediate adapter (7, 21, 22).
18. Method for laying a sectional lane-supporting bridge according to Claim 17,
    characterized in that the intermediate adapter (7, 21, 22) is connected to the launching support (14).
19. Method for laying a sectional lane-supporting bridge according to one of Claims 17 or 18, characterized in that the lane support (1, 2, 101, 102) is connected to the intermediate adapter (7, 21, 22).
20. Method for laying a sectional lane-supporting bridge according to one of Claims 17 to 19, characterized in that the intermediate adapter (7, 21, 22), in particular the intermediate adapter (7, 21, 22) having the lane support (1, 2, 101, 102) connected thereto, is displaced across the portion (200) to be bridged.

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