WO2020193084A1

WO2020193084A1 - Mobile bridge, and a portal element and a roadway element for the mobile bridge

Info

Publication number: WO2020193084A1
Application number: PCT/EP2020/055485
Authority: WO
Inventors: Jürg MERIAN
Original assignee: Bundesamt Für Strassen Astra
Priority date: 2019-03-28
Filing date: 2020-03-03
Publication date: 2020-10-01
Also published as: WO2020192933A1

Abstract

A mobile bridge (1) is disclosed, having an entry ramp (2), a working region (3) with multiple bridge elements (6, 7), and an exit ramp (4), wherein the entry ramp (2), the bridge elements (6, 7) and the exit ramp (4) can be coupled, and wherein at least some of the bridge elements (6, 7) have running gear (8) which provide a first displacement component of the bridge (1) in the direction of the longitudinal axis (M) and/or a second displacement component of the bridge (1) transverse to the longitudinal axis (M), in order to bring the bridge (1) into any desired position. Also disclosed are a portal element and a roadway element for the mobile bridge.

Description

Mobile bridge as well as a portal element and a

Track element for the mobile bridge

The present invention relates to a mobile bridge, a portal element for the mobile bridge and a

Track element for the mobile bridge.

Today's road and motorway network is used by many road users at the same time and is therefore prone to traffic jams with long waiting times for them

Road users. It is therefore a major concern to keep the availability of the road and motorway network as high as possible, with traffic jams and the associated ones

Waiting times are as short as possible. While traffic jams caused by accidents or weather influences can hardly be avoided, maintenance work on the road and

The motorway network can be planned and set in such a way that the traffic flow is not or only to a small extent

is affected. However, since the traffic density has risen sharply in recent years, we had to

Maintenance work on busy roads or

Sections of the motorway have to be relocated into the night as there is less traffic at night

can be expected. This is the only way to avoid major traffic jams on these routes.

In the meantime, however, it is usable for the renovation

Time windows with little traffic are getting smaller and smaller, even at night, so that larger ones are Maintenance work, such as re-surfacing, can drag on for weeks or even months. Furthermore, in the remaining usable time window with less

Traffic density, a time requirement for the road closure before the start of the renovation work and a time requirement for the re-opening of the blocked route section must also be taken into account. In addition, the rehabilitated road sections must be ready enough at the time of clearance so that road users can drive them again without causing damage. All of this shortens the window of time in which the actual

Renovation work can be carried out. After all, the renovation work is often limited to the

Night time, which leads to additional costs for night surcharge for the staff employed.

The object of the present invention was therefore to reduce at least some of the problems mentioned above as far as possible.

This object is achieved by a mobile bridge according to the features listed in claim 1. Further

Design variants of the mobile bridge as well as a

Portal element for the mobile bridge and a roadway element for the mobile bridge are in further claims

specified.

The present invention initially relates to a mobile bridge with a longitudinal axis, comprising:

- an access ramp, - a work area with several bridge elements and

- a departure ramp,

wherein the access ramp, the bridge elements and the departure ramp can be detachably coupled and at least some of the bridge elements have undercarriages that allow a first displacement component of the bridge in the direction of the longitudinal axis and / or a second displacement component of the bridge transversely to the longitudinal axis in order to move the bridge into any position bring.

The mobile bridge according to the present invention has at least one of the following advantages:

- Crossings of the median in the construction site area are not necessary during operation of the mobile bridge according to the invention;

- The renovation work can be carried out during the day

with night surcharges for construction workers

fall away;

- The renovation work can be carried out under a roof, which enables weatherproof work;

- The number of congestion hours is reduced;

- There can be no traffic jam by reducing the lane;

- The length of the construction sites is clearly short;

- The lanes do not have to be closely marked.

One embodiment of the mobile bridge according to the invention consists in that each chassis has a vertical axis about which the chassis can be rotated. A variant of the mobile bridge according to the invention is that at least one of the following elements can be lifted:

- the access ramp;

- the work area with the several bridge elements;

- the departure ramp.

Further design variants of the mobile bridge according to the invention consist in that the bridge element is either a portal element or a roadway element (intermediate plate), the portal element and the roadway element being the same

preferably alternate.

Still further design variants of the mobile bridge according to the invention consist in that the portal element has a substructure with the chassis and a superstructure with a

Has roadway section.

Further design variants of the mobile bridge according to the invention consist in that the roadway element can be coupled to the respective, adjacent roadway section in order to form one or more lanes. A coupling is preferably carried out by means of hydraulically movable bolts or screwed straps to form non-positive connections.

Further design variants of the mobile bridge according to the invention consist in that the chassis can be retracted or that support elements can be extended so that the

Support elements assume a load distribution on a sub-floor. Further design variants of the mobile bridge according to the invention consist in that the

Support elements a protective mat, for example a

vulcanized rubber mat, is provided.

Further design variants of the mobile bridge according to the invention consist in that it has two lanes. Further design variants of the mobile bridge according to the invention consist in that the bridge elements or their components, such as chassis or support elements, which

Ramp elements, the ramp end elements and

Carriageway sections are dimensioned in such a way that no special permits are required for their transport in accordance with the relevant standards.

According to the invention, the bridge elements are so

dimensioned so that no special permits for

Transports must be obtained.

Further design variants of the mobile bridge according to the invention consist in that the bridge elements

consist mainly of steel.

Further design variants of the mobile bridge according to the invention consist in that at least one drive unit is provided for driving the chassis. The at least one drive unit is preferably via a Communication line for controlling one

Central unit can be connected to this.

This means that the via

Portal elements connected to the roadway elements are possible, so that the bridge can be moved as a whole. The portal elements can, however, also be controlled and moved individually.

Further design variants of the mobile bridge according to the invention consist in that the roadway element consists of a central part and two peripheral parts.

Further design variants of the mobile bridge according to the invention consist in that a connecting element is arranged on the longitudinal axis for the detachable coupling of the portal elements with adjacent roadway elements.

Further design variants of the mobile bridge according to the invention consist in that the connecting element on the side of the roadway element has a pin with a bore transversely to a longitudinal axis of the pin, that the connecting element has a sleeve on the portal element side for receiving the pin and that an operatively connected to a locking cylinder Bolt is provided, which can be inserted into the bore of the pin when the portal element and roadway element are assembled.

Further design variants of the mobile bridge according to the invention consist in that the bore in the pin runs conically and that the bolt has a corresponding conical shape Has course, so that with a depth of penetration of the bolt into the hole in the pin, a game between

Portal element and track element is adjustable.

The present invention also relates to a

Portal element for a mobile bridge having a longitudinal axis according to the present invention, the portal element having a substructure with at least three, preferably four

Comprises chassis and a superstructure with a roadway section, wherein the chassis comprises a first

Allow displacement component in the direction of the longitudinal axis and / or a second displacement component transversely to the longitudinal axis to the portal element in any

Position.

An embodiment variant for the inventive

The portal element consists in the fact that the track section in the longitudinal axis of the mobile bridge has connecting elements, preferably in the form of hydraulically movable bolts or tabs, for the formation of non-positive connections.

Design variants for the inventive

Portal element consist in that it has a sleeve for receiving a pin of a roadway element and that a bolt that is operatively connected to a locking cylinder is provided, which when the portal element and roadway element are joined together in a bore in the bolt running transversely to the longitudinal axis of the bolt with the help of a

Locking cylinder is insertable. Further design variants for the portal element according to the invention consist in that the chassis can be retracted or that support elements can be extended so that the

Support elements assume a load distribution on a sub-floor.

Still further design variants for the portal element according to the invention consist in that at least one

Drive unit is provided for driving the chassis, the drive units preferably via a

Communication line for control by a

Central unit is connectable. Finally, the present invention relates to one

Lane element for the mobile bridge according to the invention, which is in the longitudinal axis of the mobile bridge

Connecting elements, preferably in the form of hydraulically movable bolts or tabs, to form

frictional connections with portal elements

are provided.

It is expressly pointed out that the

above-mentioned design variants can be combined in any way. Only those combinations of design variants are excluded which would otherwise lead to a contradiction through their combination. Embodiments of the present invention are explained in more detail below with reference to figures. Show it

1 shows a side view of a mobile bridge according to the present invention,

Fig. 2, schematically, a possible division into

Bridge elements of the mobile bridge shown in Fig. 1,

3 shows a section transverse to the direction of travel of a four-lane motorway in which a mobile bridge according to the present invention is in use in one direction of travel,

Fig. 4 is a section transverse to the direction of travel through a

portal element according to the invention,

5 shows a side view of the portal element according to FIG

Fig. 4,

6 shows a section of an embodiment variant of the mobile bridge according to the invention with two portal elements and with one with the two

Portal elements connected roadway element in perspective view,

Fig. 7 the section according to FIG. 6 in plan view, Figures 8a and 8b

one connector each in

different positions,

Figures 9a, 9b and 9c

the process of loading a portal element on a low-bed trailer,

Figures 10a, 10b and 10c

the process of loading a ramp element on a low-bed trailer.

In Fig. 1, a mobile bridge 1 according to the present invention is shown in a side view. The mobile bridge 1 has an access ramp 2, a work area 3 and an exit ramp 3 and enables

Maintenance work on the road or motorway section without significantly affecting the flow of traffic. The maintenance work can be carried out in particular in the work area 3 of the mobile bridge 1, since in

Working area 3 the working height, which is due to the

Road surface and the lower edge of the bridge deck is defined, is largest and constant. The

Working height can be 310cm, for example. Of the

Work area 3 is divided, for example, into a 106 m long sub-area in which the construction work is carried out, and a staging area of

for example 25m, in which construction machines and the like are provided or parked. In this specific embodiment, the working area 3 is 106m + 25m + 25m, a total of 156m long. It goes without saying that the length of the working area 3 can differ significantly from this specific length, and consequently the length of the mobile bridge 1 according to the invention can be selected as desired.

The mobile bridge 1 according to the present invention is modular, can be used repeatedly and is intended for the temporary guidance of road traffic in an elevated position above the roadway. The bridge shown in Fig. 1 is for two lanes - i. E. 2 lanes in the same direction of travel - designed. A single-lane operation with two-way traffic or a single-lane operation for special transports without it is also conceivable

Two-way traffic. The space under the mobile bridge 1

allows the implementation of repair or

Renovation work on the affected road while the traffic is on the mobile bridge 1. The entry and exit to the space under the mobile bridge 1 takes place via the logistics lane LS (FIG. 3). The total length of the mobile bridge 1 of around 238 m, for example, includes a work area 3 that is around 156 m long

Provision area for construction machines and the on and off ramp 2 and 4 with a length of around 66 m each, for example. Of course, the total length can also be shorter or significantly longer. The length of the

The access ramp 2 and the departure ramp 4 result from the desired working height in the working area 3 and the selected gradient for the access ramp 2 or the selected gradient for the departure ramp 4. The mobile bridge according to the present invention is also particularly suitable for roadway sections

Curve sections up to a radius of at least 1000m and a gradient of no more than 3 °. applicable. This enables unrestricted use of the mobile bridge

Motorways in Europe. It is pointed out, however, that the aforementioned restrictions of the minimum curve radius and the maximum gradient can also be exceeded or not reached.

The construction of the mobile bridge 1 according to

present invention consists of transportable

Elements made of steel, which are quickly connected to an overall system on site in one night. This

Elements are shown schematically in FIG. The

The bridge deck is also made of steel, for example, and is provided with a non-slip thin layer (epoxy and sprinkled quartz sand). The size and weight of the elements are chosen so that you

Transport on the main road network without

Special permits are possible.

In the working area 3 and in the upper area of the construction, the mobile bridge 1 consists of the mobile substructure and the elevated roadway. Only in the first half of the access and exit ramps 2 and 4, which are directly on the during use

Street lanes are turned off is not a separate one

Substructure available. During operation, the mobile bridge 1 via support elements 10 (FIGS. 4 and 5) becomes one Chassis 8 (Fig. 5) placed on the roadway and acts in one embodiment of the present invention as a stationary support structure. It can be opened during a break in operation with the help of hydraulic cylinders

Wheel racks (chassis 8 - Fig. 5) are lifted as a whole and moved in the longitudinal and transverse directions. The lower ends of the access and exit ramps 2 and 4 can be hydraulically removed from the road surface before they are moved

be raised. The chassis 8 are driven by units which are arranged, for example, in the upper area of the access and departure ramps 2 and 4 on the underside of the bridge carriageway.

FIG. 2 schematically shows a modular structure of the mobile bridge 1. Thus, in the work area 3

alternately portal elements 6 and track element 7 can be seen, the portal elements 6 in addition to a

Road section in the upper area is still closed

Have explanatory chassis 8, which allow the entire mobile bridge 1 to be moved. The

Roadway elements 7 on the other hand serve to connect the portal elements 6 in the upper area and complement the roadway between the neighboring ones

Portal elements 6. The access ramp 2 and the

Downhill ramp 4 have ramp elements 5 and

Ramp end elements 12. The ramp elements 5 are

also equipped with a chassis and thus

displaceable, but their height is reduced according to the position within the access or exit ramp 2 or 4. The respective ramp end elements 12 can also have undercarriages that can also be raised by means of hydraulic cylinders so that the mobile bridge 1 can be moved as a whole without the

Ramp end elements 12 when moving on the ground

grind .

The length of the mobile bridge 1 can be selected by adding or removing portal elements 6 and roadway elements 7 - which can be done for example during the night. An existing mobile bridge 1 can also be lengthened or shortened by dividing the work area 3 and adding or removing portal elements 6 and roadway elements 7 - again preferably during the night - and then put into operation again in the new length.

3 shows a four-lane motorway in a section transversely to the direction of travel, each with two directionally separated lanes FS and with a hard shoulder PS pro

Direction of travel. While on the opposite lane - i.e. on the left side of the lane - the traffic is normal, i.e. is processed at the maximum permissible speed, the right lane FS is rehabilitated on the right side of the road, for example by replacing the road surface. For this purpose, a mobile bridge 1 was built according to the present invention and accordingly over the to

repositioning lane FS positioned. This enables a so-called logistics lane LS to have sufficient space to supply the construction site under the mobile bridge 1 with the required construction material. While now the Traffic - for example two-lane or one-lane with two-way traffic as shown here - is handled via the mobile bridge 1, construction work is carried out under the mobile bridge 1 with smaller construction machines.

For a rehabilitation of the left lane FS, the mobile bridge 1 is correspondingly transversely across this lane FS

shifted, the logistics lane then being implemented on the right side of the mobile bridge 1 in the area of the breakdown lane PS and the right lane FS.

The bridge deck of the mobile bridge 1 according to the

The present invention thus enables operation with two lanes FS in the same direction of travel

simultaneous execution of construction work. In particular, due to the incline of the access ramp 2, the maximum speed over the mobile bridge 1 is reduced compared to the otherwise usual maximum speed.

FIG. 4 shows an enlarged section transversely through the mobile bridge 1 in the area of a portal element 6, as can already be seen in reduced size from FIG. The mobile bridge 1 has two lanes FS with one each

Lane width 18 of, for example, 3m. Under the roadway element 7 of the mobile bridge 1 is a

Working height 13 of, for example, 3.10m for a

Working width 14 of, for example, 5.20m available. The roadway elements 7 are sealed so that no

Meteor water can drain onto the work area. The working width 14 corresponds to the bridge width 15 minus the support element width 16 required by the support elements 10 or by the chassis 8. The roadway element 7 has side guardrail elements 19 which can be easily dismantled or folded inward when the mobile bridge is dismantled.

Finally, in the lower area of the chassis 8, the support elements 10 can be seen, which are provided for receiving and distributing the bridge load and can be lowered for this purpose. Another embodiment variant is that the chassis 8 is retracted until the

Support elements 10 can absorb the bridge load. The

In this embodiment variant of the present invention, support elements 10 can have a fixed length. The

Footplates of all support elements 10 are coated with rubber. This insulation prevents and reduces impressions in the road surface at high air temperatures

Noise emissions.

Fig. 5 shows the portal element 6 in side view. As mentioned, the portal element 6 consists of a superstructure with the roadway section 9 and a substructure with the chassis 8. The roadway section 9 has coupling points 24 and 25 via which a coupling with the adjacent roadway element 7 (not shown in FIG. 5) for Extension of the lane FS can be done. In the in Fig. 5

The variant shown exist the

Coupling points 24 and 25 made of hydraulically movable bolts. Other non-positive connections, in particular using tabs, are also conceivable. The chassis 8 has a chassis 27, at the ends of which the support elements 10 are arranged in the axial direction of the mobile bridge. The support element 10 are in the embodiment variant of the present invention shown as

designed extendable hydraulic cylinders that allow a complete transfer of the load of the mobile bridge 1 transferred to the roadway. Between

Support elements 10 are provided with drive units 28 with tire wheels which can be rotated independently of one another about their vertical axis, for example in a range of 260 °. This allows maximum maneuverability of the portal element 6 and thus of the entire mobile bridge 1. In particular, the chassis 8 used allow the mobile bridge 1 to be moved into any position that can be predetermined, with each displacement being caused by one

Displacement vector can be represented in a first displacement component of the bridge in the direction of the longitudinal axis M of the bridge and in a second

Displacement component of the bridge transversely to the longitudinal axis M can be split. The chassis 8 also includes an aggregate unit 20, which supplies the drive units 28 with energy. In addition, it has interfaces for connecting multiple portal elements 6 in order to enable synchronous control of the large number of portal elements 6 interconnected via roadway sections 9. The interfaces can include wired or wireless signal transmission, or both. If four chassis are provided per portal element 6, as is provided in the variant embodiment according to FIG. 5, a portal element 6 can be controlled like an individual vehicle. Such a portal element 6 can therefore be moved to the desired position independently - for example manually or controlled by a GPS signal - or via a control unit operated by an operator when the mobile bridge 1 is being erected.

Since no crane is required for this, the assembly time for the entire assembly of the mobile bridge can be very long

be reduced.

In a further embodiment variant of the present invention, the support elements 10 are fixedly mounted. The

Drive units 28 are retractable so that when

When the drive units 28 are extended, the portal element 6 can be moved and the bridge load is transmitted to the base floor via the fixed support elements 10 when the drive units 28 are retracted.

The guardrail element 19 is on a

Lane section length 26 corresponding to the

Roadway section 9 can also be coupled to the guardrail elements 19 of the adjoining them

Roadway element 7 (not shown in Fig. 5). The coupling makes the entire guardrail system the mobile one

Bridge stable and safety for road users on the mobile bridge ensured. Furthermore, the guardrails can be increased to one meter (not shown in FIG. 5) by doubling them. This measure leads to a guardrail if road users leave their vehicle on the mobile bridge 1.

It is envisaged like this from the preceding

Detailed description of design variants of the

It is apparent from the present invention that the mobile bridge is only released for operation when it is fixedly deposited on its support elements 10. A shift in the longitudinal direction of the mobile bridge to another location then has the consequence that the traffic has to be diverted, for example, to the logistics lane or stopped until the mobile bridge is again placed on the support elements 10 in its new location.

In a further embodiment variant of the present invention, it is provided that the mobile bridge or its portal elements 6 are not supported on the support elements 10, but only on the drive units 28. Moreover, it is then - in another

Variants of the present invention - conceivable that the mobile bridge during operation, i. is being moved during the construction work and / or traffic rolls over the mobile bridge. The road users then virtually drive onto the moving mobile bridge and move over it while it moves itself.

For drainage of the roadway elements and the

Roadway sections can use the hydraulically controlled cylinders in the support elements 10 to raise or lower the roadway elements and roadway sections Transverse inclination of the roadway elements and the roadway sections can be set so that the water present on the roadway elements and the roadway sections can flow off laterally.

In one embodiment of the present invention, the longitudinal gradient of the roadway in the access and exit ramps is limited to a maximum value of approximately 6.1% with regard to operation, for example at a maximum speed of 60 km / h. The slope of the

Approach and exit ramps are depending on the longitudinal gradient of the road through the

Adjusted the height adjustment of the trolleys.

The portal elements are designed in the upper area of the access and exit ramp so that the vertical

The rounding of the bridge axis is reproduced as well as possible in order to prevent the hitching up of lowered coaches. For this purpose, the longitudinal inclination is set individually for each portal element thanks to its individual mounting.

The roadway (i.e. the superstructure) is in one

Variants of the present invention designed independently of the chassis (substructure). The

The steel structure has ribs with a closed cross-section, which are stretched in the direction of travel and act in solidarity with the sheet metal, and are supported by cross members. The roadway consists of suspended roadway elements 7 (Fig. 1 and 2) and from Roadway sections 9 together with parking base, which are mounted on the chassis 8.

The roadway elements 7 are considered to be bridge segments which can be easily transported and stored. Only for the lower area of the ramp are special elements divided into half the width of the lane, but they can also be undivided. These particular elements correspond in Fig.

1 the first four elongated in the direction of travel

Elements of the access ramp and the last four elements of the departure ramp, also in the direction of travel.

The joints (gaps) between the roadway sections 9 of the portal elements 6 and the roadway elements 7 are

sealed. Because of the security and

Comfort conditions is a maximum joint width

(Column width between the consecutive

Roadway elements), for example, of 40mm possible, which must be matched to the required accuracy for the composition of the elements. The specified value applies to the bridge axis. A variation of the joint width in

The transverse direction of the bridge results from the polygonal joining of the bridge elements when the mobile bridge lies in the curve (enlargement on the outside of the curve,

Reduction on the inside of the curve). The arrangement of the roadway elements is decisive for cornering

for example with a relative angle in the plan of approx. 0.43 °. Depending on the embodiment of the present invention, a realization of the chassis (bogies) as

stand-alone element or they can be firmly connected to the parking base of the track elements.

In contrast to fixed, permanent bridges, the mobile bridge according to this invention offers the possibility of repairs in the factory and outside of the operating time

perform. This makes maintenance much easier. Wear parts and components of shorter

The service life (covering, vehicle restraint systems, bearing wear plates for parking the chassis on the road surface) can be inspected at shorter intervals. The components of the mobile bridge according to the invention can be checked visually before and after each use. The tests are carried out in the factory and according to the

Supervision and maintenance plan arranged. This ensures that the condition of the structure and equipment is known and monitored.

The mobile bridge according to the invention is designed to carry the road traffic loads and the starting and braking forces generated as a result of road traffic. Furthermore, the mobile bridge according to the invention is designed for the removal of the impact forces generated as a result of the road traffic from the logistics lane and from the opposite lane. The loads and forces are distributed on the support elements 10 and introduced into the subsoil via the road surface. The bearing surfaces and the storage for the operating condition are to be designed in such a way that the road surface is not damaged.

Furthermore, the mobile bridge according to the invention is secured against lightning strikes by connecting overvoltages of the mobile bridge to existing ones by means of grounding lines

Vehicle restraint systems (e.g. guard rails for the

Separation of the direction of travel) in the median.

The width of the support plates of the support elements can be 1030 mm, for example, which can also correspond to the width of the chassis. Their length in the direction of travel is taking into account the conflicts in the lifting and

Lowering of the chassis (radius of action)

maximize. A rotation of the support plate at the base of the hydraulic cylinder (joint) during the transport and lifting process is conceivable, provided that it is not disadvantageous for operation and maintenance.

At the contact surface of the support plates with the

For example, a full-surface, elastic protective and load-distributing layer can be introduced onto the road surface in order to reduce the stress peaks and the temperatures in the summer months. This elastic mounting can be permanently mounted on an exchangeable wear plate which is attached to the underside of the support plate. In particular, the wear plate can be a

be vulcanized rubber mat. The mobile bridge according to the invention is a modular one

System consisting of portal elements and track elements for the superstructure and trolleys for the substructure. The

The drive concept, the associated unit units and operating equipment, the chassis and the chassis are coordinated with one another.

The wheelbase, the length of the undercarriage, the wheel sizes and the arrangement of the support elements have to be taken into account with regard to the transfer of loads and forces as a result of the

Road traffic in operation and at a sufficient level

Stability and stability during the shifts in the operating locks selected and optimized. The concept for transferring the starting and braking forces of the

Road traffic is alternatively suitable for the full length or for a variable, possibly very short length of the work area below (construction site).

The possible uses of the mobile bridge according to the invention are thereby maximized.

6 shows a section of a mobile bridge according to the invention, consisting of two portal elements 6 and one connected to the two portal elements 6

Roadway element 7. In contrast to the roadway element 7 according to FIG. 2, the roadway element 7 consists of the

The embodiment variant according to FIG. 6 consists of three parts, namely a central part 30 and two peripheral parts 31 and 32. This has the advantage that the size of the parts 30 to 32 can be maximized in the longitudinal direction of the mobile bridge (e.g. to a distance between portal elements 6 of over 5m), which on the one hand leads to increased access for construction machinery under the mobile bridge between two adjacent portal elements 6. On the other hand, a subdivision of the roadway element 7 into the three parts 30 to 32 leads to better handling during transport and during assembly.

FIG. 7 shows the section of the mobile bridge according to FIG. 6 in a view from above. The track section 9 on the portal elements 6 and the track element 7 with the central part 30 and the two peripheral parts 31 and 32 can again be seen. To explain the

Connecting means between the portal elements 6 and the three parts 30 to 32 of the roadway element 7 are provided on the longitudinal axis M of the mobile bridge, connecting elements consisting of pins 34, joint elements 35 and bolts 36. These fasteners are in the

Top view of the mobile bridge according to FIG. 7

shown, but are located below the

Road surface, therefore below the

Roadway section 9 and the central part 30. The same applies to control cylinders 40 which are spaced apart with respect to the longitudinal axis M and of which four are present per portal element 6 and which can be operatively connected to the respective peripheral parts 31 or 32.

For a good longitudinal stability of the mobile bridge, the connecting elements arranged on the longitudinal axis M are decisive, which are explained below with reference to FIGS. 8a and 8b: 8a and 8b show the connecting elements in two positions, but both in the closed state, but with different strengths of the connection. As shown in FIGS. 8a and 8b, a pin 34, which is fixedly connected to the central part 30 via a hinge element 35, engages in a with the portal element 6 or the

Track section 9 firmly connected sleeve 38 so far that a bolt 36 displaceable transversely to the pin 34 can pierce the pin 34 at a predetermined bore with the aid of a locking cylinder 37. So that an unintentional loosening of the fixed connection can be prevented, at the end of the bolt 36 a

Securing element 33 is fixed, which must first be removed for complete retraction of the bolt 36 with the aid of the locking cylinder 37.

As can also be seen from FIGS. 8a and 8b, the bolt 36 has a cone, with a taper in the direction of the securing element 33 being provided.

Correspondingly, the bore through the pin 34 is also conical, in such a way that when the bolt 36 is completely pushed in, it jams in the bore of the pin 34 and a rigid connection between the central part 30 and the portal element 6 is created.

If now, as shown in Fig. 8b, the bolt 36 is withdrawn with the aid of the locking cylinder 37 maximally up to the stop of the securing element 33 on the sleeve 38, thus the conical part of the bolt 36 from the Tapering in the bore of the pin 34 releases, a certain freedom of movement is created between the central part 30 and the portal element 6. This freedom of movement is of crucial importance when the mobile bridge has to be adapted to a winding road section.

Furthermore, the control cylinders 40 acting on the peripheral parts 31 and 32 also assist in setting a desired curve radius. This means that the mobile

The bridge can be driven or shifted after a hydraulic lifting of, for example, 10cm in the longitudinal direction at 0.5km / h, with curve radii of up to 1000m and a gradient of 3% of the road layout being conceivable. The mobile bridge can also be driven transversely at 0.5km / h or. be moved. For this purpose, the portal elements 6 are hydraulically stiffened with the roadway elements 7 with the aid of the control cylinder 40, with a control of the

Control cylinder 40 with the control of the landing gear

can be coupled so that unnecessary forces between the elements can be prevented.

Another embodiment of the present invention is that the displacements of the individual

Portal elements 6 as well as in combination with roadway elements 7 - and thus the mobile bridge as a whole - is controlled by means of GPS (Global Positioning System). This means that the mobile bridge or individual portal elements can be moved to a desired position by specifying coordinates without manual intervention by a

Operator is required. This possibility is both of great advantage when assembling the mobile bridge, especially when positioning individual portal elements, and when positioning the entire mobile bridge.

So that no meteor water affects the work area, it is provided in a further embodiment of the present invention, the central part 30 and the

adjacent peripheral part 31 and 32 by means of

To seal rubber gasket or the like. in the

Transition area between the portal element 6, respectively. the carriageway section 9 belonging to this and the carriageway element 7 adjoining it with the central part 30 and the peripheral parts 31 and 32 is a water channel below this due to the widening gap when a curve is implemented with the mobile bridge

Transition area provided. Water is diverted to the side via this gully, with another channel for good and quick drainage

Design variant is provided to extend the lifting cylinder on one side of the bridge so that the

Road surface is slightly inclined so that

accumulating water can run off quickly.

9a, 9b and 9c, the charging of a

Portal element 6 shown on a low-bed trailer without a crane having to be used. In a first step, the portal element 6 is replaced by its own

Lifting cylinder raised until the low-bed trailer can be positioned under the portal element 6. Next the lifting cylinders are retracted until the running gear touches down on the low-bed trailer. After the lifting cylinder has been fully retracted, the portal element 6 can be transported to the new location using the low-bed trailer.

Finally, to reduce noise emissions in the mobile bridge according to the invention, the

Track element 9 respectively. to allow the central part 30 and the peripheral parts 31 and 32 to rest on brackets belonging to the portal elements 6 and coated with an elastomer. The dampening properties of the elastomer coating lead to significantly less noise pollution than when metal comes to rest directly on metal.

Finally, the charging of the ramp elements is illustrated with reference to FIGS. 10a, 10b and 10c. In a first step after lifting with a crane, lateral support elements are installed, which enable a low-bed trailer to be driven under the ramp elements. After lifting the

The support elements can be removed from the low-bed trailer and they can be transported to a new location. Note signs:

1 mobile bridge

2 access ramp

3 Work area made up of several bridge elements

4 departure ramp

5 ramp element

6 portal element

7 track element

8 chassis

9 lane section

10 support elements

11 Drive unit

12 ramp end element

13 working height

14 working width

15 bridge width

16 support element width

17 lane height

18 lane width

19 Guard rail element

20 aggregate unit

21 bogie

22 wheelbase

23 chassis length

24, 25 coupling point

26 lane length

27 chassis

28 Drive unit

30 central part 31, 32 peripheral parts

33 Safety element

34 cones

35 joint element

36 bolts

37 locking cylinder

38 Sleeve for receiving the pin 34

40 control cylinder FS lane

PS hard shoulder

LS logistics lane

M longitudinal axis

Claims

1. Mobile bridge (1) with a longitudinal axis (M), comprising:

- an access ramp (2),

- A work area (3) with several bridge elements (6, 7) and

- a departure ramp (4),

wherein the access ramp (2), the bridge elements (6, 7) and the departure ramp (4) can be detachably coupled and wherein at least some of the bridge elements (6, 7) have undercarriages (8) which have a first displacement component of the bridge (1) in Allow direction of the longitudinal axis (M) and / or a second displacement component of the bridge (1) transversely to the longitudinal axis (M) in order to bring the bridge (1) into any position.

2. Mobile bridge (1) according to claim 1, characterized

characterized in that each chassis (8) has a vertical axis about which the chassis (8) is rotatable.

3. Mobile bridge according to claim 1, characterized in that at least one of the following elements can be raised:

- the access ramp (2);

- the work area (3) with the multiple

Bridge elements (6, 7);

- the departure ramp (4).

4. Mobile bridge (1) according to one of claims 1 to 3, characterized in that the bridge element is either a portal element (6) or a roadway element (7), the portal element (6) and the roadway element (7) preferably alternating.

5. Mobile bridge (1) according to claim 4, characterized

characterized in that the portal element (6) has a substructure with the chassis (8) and a superstructure with a

Has roadway section (9).

6. Mobile bridge (1) according to claim 5, characterized

characterized in that the roadway element (7) can be coupled to the respective adjacent roadway section (9) in order to form one or more lanes (FS), a coupling preferably being established by means of hydraulically movable bolts or screwed straps

Connections made.

7. Mobile bridge (1) according to one of the preceding

Claims, characterized in that the chassis (8) can be retracted or that the support elements (10) can be extended so that the support elements (10) distribute the load on a subsurface.

8. Mobile bridge (1) according to claim 7, characterized

characterized in that a protective mat, for example a vulcanized rubber mat, is provided on an underside of the support elements (10).

9. Mobile bridge (1) according to one of the preceding

Claims, characterized in that two lanes (FS) are implemented.

10. Mobile bridge (1) according to one of the preceding

Claims, characterized in that the bridge elements (6, 7) or their components, such as chassis (8) or support elements (10), the ramp elements (5), the

Ramp end elements (12) and roadway sections (9) are dimensioned in such a way that no

Special permits in accordance with the relevant standards

required are.

11. Mobile bridge (1) according to claim 10, characterized

characterized in that the bridge elements (6, 7)

consist mainly of steel.

12. Mobile bridge (1) according to one of the preceding

Claims, characterized in that at least one drive unit (11) for driving the chassis (8)

is provided, the at least one drive unit (11) preferably being connectable to a central unit via a communication line.

13. Mobile bridge (1) according to one of claims 4 to 12, characterized in that the roadway element (7) consists of a central part (30) and two peripheral parts (31,

32) exists.

14. Mobile bridge (1) according to one of the preceding

Claims, characterized in that a

Connecting element on the longitudinal axis (M) for releasably coupling the portal elements (6) with adjacent ones

Roadway elements (7) is arranged.

15. Mobile bridge (1) according to claim 14, characterized

characterized in that the connecting element on the side of the roadway element (6) has a pin (34) with a bore transverse to a longitudinal axis of the pin (34), that the connecting element on the side of the portal element (6) has a sleeve (38) for receiving the pin (34) and that a locking cylinder (37)

operatively connected bolt (36) is provided, which can be inserted into the bore of the pin (34) when the portal element (6) and roadway element (7) are joined together.

16. Mobile bridge (1) according to claim 15, characterized

characterized in that the bore in the pin (34) runs conically and that the bolt (36) has a corresponding conical shape, so that with a penetration depth of the bolt (36) into the bore in the pin (34) there is play between the portal element (6) and track element (7)

is adjustable.

17. Portal element (6) for a one longitudinal axis (M)

having mobile bridge (1) according to one of claims 1 to 16, characterized in that a substructure with at least three, preferably four undercarriages (8) and a superstructure with a roadway section (9) are provided, wherein the chassis (8) have a first displacement component in the direction of the longitudinal axis (M) and / or a second

Displacement component across the longitudinal axis (M)

allow to bring the portal element (6) into any position.

18. Portal element (6) according to claim 17, characterized

characterized in that the roadway section (9) in the

Has longitudinal axis (M) of the mobile bridge (1) connecting elements, preferably in the form of hydraulically movable bolts (36) or tabs, for the formation of non-positive connections.

19. Portal element (6) according to claim 18, characterized

characterized in that it has a sleeve (38) for receiving a pin (34) of a roadway element (7) and that a bolt (36) that is operatively connected to a locking cylinder (37) is provided which, when assembled

Portal element (6) and track element (7) can be inserted into a bore in the bolt (34) running transversely to the longitudinal axis of the bolt (34) with the aid of a locking cylinder.

20. Portal element (6) according to one of claims 17 to 19, characterized in that the undercarriages (8) can be retracted or that support elements (10) can be extended so that the support elements (10) distribute the load on a substrate.

21. Portal element (6) according to one of the preceding

Claims, characterized in that at least one Drive unit (11) is provided for driving the chassis (8), the at least one drive unit (11) preferably being connectable via a communication line for control by a central unit.

22. track element (7) for a mobile bridge (1) according to one of claims 1 to 17, characterized in that in the longitudinal axis (M) of the mobile bridge (1)

Connecting elements, preferably in the form of hydraulically movable bolts (36) or tabs, are provided for forming non-positive connections with portal elements (6) according to one of claims 18 to 21.