EP3575492A1 - Roadway joint system - Google Patents

Abstract

Roadway crossing with finger plates, which allows a safe crossing with bicycles even with an expansion path of more than 120mm. The possibility of crossing with bicycles is achieved by the fact that a partial overlap of the fingers (20) by the opposite, structurally identical, but offset by a finger width finger plate (10 ) he follows. For this purpose, the finger (20) is tapered in the front and / or side area and a projection (30) is provided in the finger plate (10) so that there is a partial overlap and a smaller gap than the expansion path covered Road users with narrow tires, especially cyclists and racing cyclists, are also able to safely cross such a transition.

Description

The invention relates to a roadway transition in the embodiment with finger plates, which is designed such that even for cyclists a safe crossing is possible.

A roadway is equipped at the transition, for example, between bridges or tunnels for different expansion of the roadway with corresponding road junctions.

These transitions are known in various embodiments and are partially performed with finger plates for better bridging the expansion gap. This is easily possible due to the width of the tires in multi-lane vehicles, but also motorcycles. Cyclists and especially racing cyclists sometimes have problems with existing solutions because of the narrow tires.

In the inventive design of such a transition, the execution of the finger plates is such that even with large expansion joint only small openings occur that do not endanger the safety of cyclists.

With the roadway transition according to claim 1 and the following, dependent claims, a cycling safe design is guaranteed even with finger plates and larger strain paths.

In the construction of roadways partly bridges or tunnels are required due to terrain, the lanes of which expand and contract correspondingly differently to the remaining roadway with temperature differences. To compensate for these strain paths of different components and to avoid stresses moving lane transitions are known in various designs. One embodiment, to which the subject invention relates, relates to a roadway transition with finger plates, which mesh with each other and thus allow the most comfortable possible driving over expansion joints. With appropriate contraction of the components creates a gap in the roadway transition between the fingers that leads to medium and larger Dehnwegen that this gap is so large that a cyclist with his bicycle tire in this gap may get stuck and falls.

Therefore, no finger plates can be used for transitions with stretch paths over 120mm, which are also used by cyclists, or there should be separate lanes for cyclists with other transitions.

Both are undesirable for technical and economic reasons, so that a geometry is required, which generates a correspondingly smaller gap even with medium and larger strain paths of at least 120mm, so that the transition is safe in the bicycle.

A known solution is in the EP1033442A2 discloses where additional spring steel plates are attached between the fingers to cover the resulting gap. Disadvantages are the additional parts that must be installed and the material fatigue, which leads to the fact that by decreasing spring action of the platelets they no longer cover the gap or even lost by breaking the platelets or mounting screws.

In the RVS and in the ETAG, different maximum permissible gaps are stated, that a roadway crossing is considered as safe for bicycles. Thus, according to RVS perpendicular to the transition no gap greater than 150 x 20mm in the largest expansion joint arise.

According to ETAG, no gaps, which correspond either to a circular area of 100mm diameter, or a rectangle of 220 x 20mm perpendicular to the direction of travel and in a rotation of + - 20 ° to it, or a rectangle in the dimension 200 x 100mm in any order, may arise ,

It should also be used for Dehnwege larger than 120mm finger plates and for cyclists the necessary security can be created without obstructing additional parts here. The stretching can be up to 500mm. For this purpose, the geometry of the fingers should be modified so that the resulting gap is smaller than the extension path, which performs the roadway transition.

This object is achieved by an inventive roadway transition according to claim 1 and the following dependent claims.

The invention is based on the FIGS. 1 to 5 , which show possible embodiments of the road junction, described in more detail.

In the FIG. 1 is the view from above of such a roadway transition with trapezoidal fingers and a medium Dehnweg shown.

In the FIG. 2 is a finger plate with obliquely stepped taper shown in an oblique view.

In the FIG. 3 is an exemplary embodiment in sectional view to see. In this case, a mean stretch path is covered and the course of the taper, or recess is continuous.

In the FIG. 4 is an exemplary embodiment as in FIG. 3 but to see with minimal stretch path of transition.

In the FIG. 5 is an exemplary embodiment in a sectional view as in FIG. 3 to see, but here is a gradual transition of the taper, or to see the overhang.

In a roadway transition serve finger plates (10) to make a crossing over the necessary expansion joint as homogeneous as possible and to avoid shocks both on the vehicle driving over, as well as on the transition itself as possible. Various designs are known for the geometric design of the fingers (20), in which in each case an opening path leads to a corresponding gap between the finger plates (10).

A finger plate (10) has a plurality of fingers (20) and on the opposite side of the expansion joint is substantially the same geometry, installed only offset by a finger width, so that the two plates (10) can interlock and even with a corresponding Dehnweg yet always a corresponding overlap of the expansion joint is given, which can be run over.

The finger plate (10) is connected at road junctions with a cage. An expansion joint profile for drainage and fastening straps for reinforcing irons are attached to the cage for better and secure attachment in the concrete.

Likewise, an angle profile is provided as a stop for the subsequent road surface at a roadway transition. Such designs are known.

The invention is concerned with the geometry of the finger plate (10), in particular the finger (20) and the corresponding recess, which is designed such that the gap formed during the stretching is smaller than the extension path when viewed from above.

For this it is necessary that the two plates at least partially overlap.

The overlapping can take place both only in the longitudinal direction of elongation, and additionally in the transverse direction, and the shape of the fingers (20) can be from above seen in the overlap region substantially trapezoidal, rectangular or wavy.

In order to achieve an overlap, it is necessary that, on the one hand, the fingers (20) of the plates (10) are tapered towards the parting line and, on the other hand, the plate (10) has a projection (30) in the engagement region of the fingers (20) to cover the tapered finger (21).

The tapering of the finger (21) can be continuous or following any mathematical function, in several wave-like steps or also graduated. A preferred embodiment provides that the finger (20) has a first bevel at the tip, then runs essentially parallel to the plate and again has a bevel at the end. The angle of the two bevels is between 10 and 60 °, preferably between 30 and 45 ° and may be different or equal in both slopes.

For this purpose, the finger geometry (21) in the upper region is preferably milled off or ground off. It is also conceivable to produce the entire plate (10) with the desired geometry by means of a casting process.

The rejuvenation of the finger (21) can only be done in the front area, but also laterally.

On the opposite side of the taper (21), it is necessary for the engagement of these tapered fingers (21) on the finger plate (10) to provide a corresponding recess that only a relatively thin projection (30) on the top of the finger plate ( 10) stops. The geometry of the projection (30) substantially corresponds to the cross-sectional geometry of the tapered finger (21), but between the two finger plates (10) in the overlap region between the projection (30) and the taper of the finger (21) a game (40) of 2 to 15mm executed.

By this game (40) it is ensured that even in the fully closed state, the finger plate (10) can be easily raised for maintenance.

Furthermore, by this game (40) in case of contamination or presence of small stones anyway the expansion movement of the transition can be performed unhindered.

The total thickness of the finger plate (10) has a range of 10 to 80mm, preferably 25 to 50mm. The taper of the fingers (21) is between 5 and 20mm, so that with a plate thickness (10) of 50mm a remaining thickness of the finger (20) of 30 to 45mm is maintained.

Since the recess on the opposite finger plate (10) in height by 2 to 15mm larger, a thickness of the projection (30) of 2 to 15mm depending on the embodiment remains.

The game (40) from 2 to 15mm is not only in the height, but also in the length, or width of the fingers (20) provided.

The length of the taper of the fingers (21), or the protrusion (30) on the opposite side can be from 20mm to 300mm and if the width of the fingers (20) is additionally tapered, this can be over the entire width, or only a partial area and is between 5 and 50 mm.

Since the finger plates (10) have the same geometry on both sides of the road, offset by only one finger width, both features (tapering of the fingers (21) and projection (30) on the corresponding side) are incorporated into the finger plate (10). Milling or other types of removal, or production by means of casting in suitable forms, also apply here for processing. Likewise, the projection (30) can be produced in that platelets are welded into a recess.

As the material for the finger plates (10) steel, for example S355 or stainless steel or light metal alloys, preferably of aluminum or plastic used.

When using steel is also a corrosion protection, such as galvanizing the plates (10) is provided.

Thus, with the roadway transition according to the invention a bicycle safe transition created that allows without additional parts even with Dehnwegen about 120mm to 500mm safe crossing by cyclists, which was the aim of the invention.

REFERENCE NUMBERS:

10

finger plate

20

finger

21

Rejuvenation on the finger

30

Projection on the finger plate

40

game

Claims (12)

Roadway transition with finger plates (10), wherein the same finger plate geometry is used on both sides of the transition, but this is installed offset by a finger width is characterized in that the fingers (20) are at least partially tapered, on the corresponding opposite side a projection (30) of Finger plate (10) is provided and thus an overlap between the fingers (20) of a plate (10) with the opposite plate (10) in the closed state. Roadway transition according to claim 1, characterized in that the shape of the fingers (20) seen from above is designed substantially trapezoidal. Roadway transition according to claim 1, characterized in that the shape of the fingers (20) seen from above is made substantially rectangular. Roadway transition according to claim 1, 2 or 3, characterized in that the taper of the finger (21) is between 5 and 20mm. Roadway transition according to at least one of claims 1 to 4, characterized in that the taper (21) is continuous. Roadway transition according to at least one of claims 1 to 4, characterized in that the taper (21) is stepped obliquely with a substantially parallel to the plate area. Roadway transition according to at least one of claims 1 to 6, characterized in that the taper (21) is additionally incorporated in the lateral region of the fingers (20). Roadway transition according to at least one of claims 1 to 7, characterized in that the length of the taper (21) is between 20 and 300mm. Roadway transition according to at least one of claims 1 to 8, characterized in that the projection (30) both in height, as well as in the width and length to a game (40) of 2 to 15mm smaller than the tapered finger (21) executed is. Roadway transition according to at least one of claims 1 to 9, characterized in that the finger plates (10) are produced by means of milling. Roadway transition according to at least one of claims 1 to 10, characterized in that it is used for elongation of 120 to 500 mm. Roadway transition according to at least one of claims 1 to 11, characterized in that it allows a safe crossing with bicycles.

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