EP2900873A1

EP2900873A1 - Boundary element for road surfaces

Info

Publication number: EP2900873A1
Application number: EP13783220.0A
Authority: EP
Inventors: Mathias Redlberger
Original assignee: Rebloc GmbH
Current assignee: Rebloc GmbH
Priority date: 2012-09-27
Filing date: 2013-09-26
Publication date: 2015-08-05
Anticipated expiration: 2033-09-26
Also published as: WO2014047667A1; EP2900873B1; ES2656503T3; AT513410A1

Abstract

A boundary element for road surfaces, in particular bridges, has a device for connecting the boundary element to a foundation (8). The boundary element has a basic body (1) with a longitudinal axis in the direction of travel, and also has a bearing surface (9) and a connecting element (7), which is connected to the basic body (1). A profile element (6) with a longitudinal direction (10) is connected to an anchoring element (3), wherein the anchoring element (3), which is used for the connection to the foundation (8), is connected to the profile element (6), and wherein the connection between the profile element (6) and the anchoring element (3) is at a distance from the bearing surface (9). The longitudinal direction (10) of the profile element extends at an angle (β) of greater than 45°, preferably approximately 90°, to the longitudinal axis of the basic body (1).

Description

Identification element for traffic areas

The invention relates to a limiting element for

Traffic surfaces, in particular bridges, with a device for connecting the limiting element to a substrate, wherein the limiting element has a base body with a longitudinal axis in the direction of travel, a bearing surface and a connecting element connected to the base body, wherein a profile element is connected to a longitudinal direction with an anchoring element, wherein the anchoring element, which serves for connection to the ground, is connected to the profile element, and wherein the connection between the profile element and the

Anchoring element has a distance from the support surface.

Such a limiting element is known for example from AT 408 555 B. In a collision between a vehicle and a boundary element or traffic control element with a solid base body, for example made of concrete, a large part of the energy is absorbed by a displacement of the traffic control element on the ground, which extends over clutches in

continues adjacent traffic control elements. A preferred form of such a coupling is described, for example, in AT 507 611 A1. However, such a form of degradation of the kinetic energy for all road users can only be safely implemented if there is sufficient space behind the boundary elements for moving them available. This is not the case in particular when a traffic element is provided for limiting bridges or even narrow, winding mountain roads. The traffic control element must then be anchored in the underground, so for example, the bridge. For anchored traffic elements, however, the problem arises that in the

In extreme cases virtually no energy can be absorbed by moving the traffic control elements themselves. The energy is thus almost completely absorbed by the impacting vehicle in the form of deformation energy. This can lead to serious injury to the occupants.

In order to avoid this problem, it is therefore necessary, at least partially, for energy to be degraded by a possible impact

Β-ΚΪΖ2ί.ΧϊΊ (RULE 26) to be absorbed by the boundary elements. The previous

Proposed solutions provide at various points plastically deformable, essentially rod-shaped elements, which are often designed as expansion screws. It arises

However, the problem is that these are not enough

Can absorb deformation energy before they fail and render the anchorage useless. To size the deformable rod-shaped elements larger does not solve this problem, because the system is simply stiffer.

Alternative solutions see braked sled or

Rail constructions, as presented for example in AT 413 712 AI. These can, however, due to the lack of space usually be carried out only insufficient or are relatively expensive and therefore expensive.

The aim of the invention is therefore to provide a device for anchoring boundary elements on the ground, which reliably the largest possible proportion of a collision

arising energy can absorb as deformation energy.

This object is achieved by a limiting element of the type mentioned, which is characterized in that the longitudinal direction of the profile element extends at an angle greater than 45 ° to the longitudinal axis of the base body.

In the context of the invention, it is preferred if the angle is greater than 60 °, in particular greater than 75 °, and is preferably approximately 90 °.

So instead of offering only a small space for movement of a movement of the limiting element and possibly absorb low deformation energy, as a result of the position of the profile element this itself absorbs a considerable part of the energy as deformation energy.

Such anchoring can be used for various types of limiting elements, for example made of hard plastics or Metal used. According to a preferred embodiment of the invention, however, the main body consists essentially of concrete.

According to a particularly preferred embodiment of the invention, the profile element is a profile rail with a U, L, T or I-shaped cross section. These shapes are particularly suitable because they are much due to their three-dimensional geometry

Can take up deformation energy, since these by the

Inclination of its longitudinal direction to the longitudinal axis of

Base body at an angle greater than 45 ° to 90 ° a high

Have resistance moment in the bending axis.

According to a further preferred embodiment of the invention, the longitudinal direction of the profile element runs parallel to the

Bearing surface of the body. As a result, engage in a tilting of the limiting element, the forces on more advantageous

Profile element, whereby particularly favorable deformation work can be done on the profile element.

According to a very particularly preferred embodiment of the

Invention are the connection of the profile element with the

Anchoring element and the connection of the profile element with the connecting element from each other in the longitudinal direction of the

Profile element spaced. The forces therefore preferably engage at points remote from each other, whereby the profile element two sections are formed, where the anchoring element and

Fastener attack and deformation work on

Profile element can afford.

It is particularly preferred if the anchoring element in the limited traffic area closest third, preferably quarter, of the profile element is arranged. In addition to a particularly favorable absorption of forces acting through the tilting moment this arrangement has the advantage that, should the device, for example, be mounted on a bridge, the forces further away from the edge of the bridge and thus gentler for the structure will be initiated.

According to an alternative or additional preferred

Embodiment of the invention is the compound of

Connecting element with the profile element in one of the two middle quarters, in particular in the middle third of the

Profile element arranged. The thus free from the

Traffic area facing away from the profile element is then supported by, preferably in this area from above, the base body and it arises next to the two

Connections of anchoring element and connecting element with the profile element another point of attack for forces acting on a tilting forces. In each case, forces act on the connection of the anchoring element with the profile element and the traffic facing quarter or third downwards, whereas act on the connection of the connecting element with the profile element forces upwards. As a result, a uniform deformation of the profile element is effected, whereby a great deal of deformation energy can be absorbed by the profile element.

The connecting element preferably has a substantially U-shape, wherein the legs of the U-shape are connected to the base body and the bend of the U-shape is connected to the profile element. For example, holes may be provided in the profile element through which the legs of the U-shape are pushed until the bend rests against the profile element. The legs de U-shape are preferably embedded in the basic body.

In an alternative, preferred embodiment of the invention, the connecting element is substantially rod-shaped, has a thread in a region facing the profile element and is connected to the profile element by a nut. The mother can just, if necessary with one

Washer, be screwed on the opposite side or the underside of the profile element on the connecting element.

Alternatively, the nut can be welded to the profile element Again, the end of the connecting element to be connected to the base body, if the body is made of concrete, for example, are simply embedded in concrete. A direct welding of the connecting element with the profile element is also denkba.

An improvement of the connection of the body with the

Connecting element can be achieved by that

Connecting element directly connected to a reinforcement of the body, for example, welded, is. This reinforcement can be formed for example by the connecting rods, as described in AT 507 611 AI.

Preferably, there is a connection of the connecting element and the base body, for example, as described by

Setting in concrete and / or welding can occur in the region of the side of the profile element which faces away from the ground. This results in a particularly favorable introduction of force in the

Profile element.

According to a particularly preferred embodiment of the invention, the main body substantially to the longitudinal axis of the

Main body normal standing faces, the

End faces have at least one projection and / or at least one recess and wherein a projection on an end face in a recess on an end face of an adjacent

Basic body engages. Normally, boundary elements for traffic areas are coupled in their upper area to the respectively adjacent boundary element, as described, for example, in AT 507 611 A1. However, it is not intended to anchor the boundary elements in the underground. This allows adjacent boundary elements in a

Collision of a displacement follow a limiting element, causing the coupling between adjacent

Limiting elements act lateral forces that are not significantly greater than the inertial forces of the limiting elements and the frictional forces of these on the ground. In addition, they still work Tensile forces. Are the boundary elements, however

anchored according to the invention, additional lateral forces arise in the coupling. Projections and depressions on the end faces of the body relieve the clutch and in particular transversely to the longitudinal axis of the body forces acting on adjacent elements on, so then there also by

anchors according to the invention can be recorded on the ground. The projections and depressions can be carried out as described in AT 509 359 AI.

Preferably, the projections and depressions are in the lower half of the body, preferably at the level of the compounds. In this way, a possible direct transfer of the shear forces from one base body to the next.

Further preferred embodiments of the invention are

Subject of the remaining dependent claims.

The invention will be described in the following with reference to a preferred

Embodiment of the invention with reference to the

Drawings further explained. It shows:

Fig. 1 is an oblique view of a base body with three

devices according to the invention, which is shown transparent for clarity reasons with dashed lines drawn outer contour,

Fig. 2 shows a section through the main body in the region of one of the devices,

3 is a front view of a device according to the invention on a base body,

Fig. 4 shows a main body in plan view with alternative

Variants of the arrangement of inventive

Profile elements,

5 shows a profile element of Fig. 1,

Fig. 6 shows the profile element of FIG. 5 with a

Connecting element and an anchoring element,

Fig. 7 shows a second embodiment of a profile element and Fig. 8 shows a third embodiment of a profile element.

Fig. 1 shows an oblique view of a limiting element according to the invention, for example a

Concrete Leitwandelemehtes, with a base body 1 with three

Devices 2 according to the invention for attaching the base body 1 to the ground. On Grundköper 1 23 further not shown coupling elements can be arranged on end faces to

adjacent boundary elements to each other to connect to a kind of chain. These coupling elements can

For example, be clutches, which may be as known from AT 507 611 AI known.

The devices 2 are each connected via anchoring elements 3 to the substrate 8 (see FIG. 2). The

Anchoring elements 3 protrude in the illustrated embodiment, with its beyond the base 8 beyond end through an opening in a profile element 6 and are connected thereto via a nut 4 with a washer 5 with the profile element 6. Alternative connections between profile element 6 and anchoring element 3, for example by welding, are also conceivable. By in the example shown in the downwardly open, U-shaped profile of the profile element 6 is the connection between anchoring element 3 and profile element. 6

spaced according to the invention to the ground. This shearing the anchoring element 3 by the Pro ilelement 6 is prevented in the event of a collision, since the profile element has enough room for deformation. Other profile shapes, through which the connection between anchoring element 3 and

Profile element 6 is spaced from the substrate 8, are also used. A connection between the main body 1 and the profile element 6 is shown in a

Embodiment U-shaped bent connecting element 7 made.

2 shows a section through the main body 1 with the device 2 along the line II-II in Fig. 1. The substrate. 8 is in the illustrated embodiment, the edge region of a bridge. However, an inventive limiting element with one or more devices 2 according to the invention can

for example, also on mountain roads, e.g. at the edge of bends, especially in serpentines in steeply sloping

Terrain, or be used in front of obstacles. In general, the use of a device according to the invention is particularly advantageous where there is insufficient space for a displacement of a limiting element, by means of which the

Energy of a possible collision can be reduced. Thus, for example, even in heavily built-up areas where motor vehicle traffic is e.g. not far enough from the bicycle and / or pedestrian traffic can be separated.

The substrate 8 has a support surface 22. A Längsache 10 of the profile element 6 is preferably, as shown in the drawing, parallel to the support surface 22 of the substrate 8 or support surface 9 of the base body 1 is arranged.

Embodiments in which the profile element 6 is inclined to the ground are also conceivable. In the illustrated embodiment, the connecting element 7 has an angle of 84 ° to the longitudinal axis 10 of the profile element 6. Thus, forces arising in the event of a possible collision can be transmitted particularly well between the base body 1 and the profile element 6. Other

Angle between the profile element 6 and the connecting element 7 are also conceivable, in particular if the profile element 6 or its longitudinal axis 10 is not parallel to the support surface 9 of the

Base body 1 is located.

Furthermore, FIGS. 1, 2 and 4 show a recess 12 in FIG

Basic body 1. This simplifies the connection of

Limiting elements with the substrate 8 by means

Devices 2 according to the invention

Anchoring element 3 fixed in the background 8. Then, the profile element 6, which is already connected via the connecting element 7 with the base body 1, are placed over the anchoring element 3. In the recess 12 is then enough space, around the washer 5 and the nut 4 on the end of the

Anchoring element 3, which through an opening 20 in

Connecting element 6 protrudes, stuck and tighten.

Arrows 17, 18 in FIG. 2 show, in a greatly simplified form, possible forces acting on or in the limiting element. The arrow 17 represents the force which acts on the base body 1 in the event of a collision of a vehicle with it. This leads in the consequence of a tilting movement about a rear edge 11. This results in tensile forces represented by the arrow 18, which preferably engage via the connecting element 7 in a central region of the profile element 6, in which the connecting element 7 is connected to the profile element 6.

Fig. 3 shows a front view of an inventive

Device 2. One can clearly see the U-shape of the

Detect connecting element 7. Thigh 13 of the

Connecting element 7 are firmly connected to the base body. The legs 13 may for example be embedded in concrete in a base body 1 made of concrete. For example, in the case of a basic body which consists essentially of metal, the legs 13 could also be welded to the basic body. About a bend 14 of the connecting element 7, this is the bottom of the horizontal web 15 in this embodiment of the

Profile element 6 and provides the connection between the

Profile element 6 and the connecting element 7 ago. For this purpose, the legs 13 are guided through holes 21 (FIG. 6) in the profile element 6. The connecting element 7 is connected to the bend 14 in the

Profile element 6 and tensile forces acting in the legs 13 are transmitted to the profile element 6.

In a collision occurring energy is thus in the

Guided profile element where it performs deformation work and can be degraded thereby.

FIG. 4 shows an embodiment with profile elements 6 aligned at an angle β to the longitudinal axis of the main body 1 shown. In the illustrated embodiment, the angle β is 60 °. The angle should be greater than 45 °, so that a controlled bending of the profile element 6 is ensured to the respective bending axis. The larger the angle β, the stiffer the profile element 6 becomes at a displacement of the main body 1 at right angles to its longitudinal axis and a corresponding deformation of the profile element 6.

The profile elements 6, as shown in Fig. 4 in pairs V-shaped or, if one considers the two middle profile elements 6 as a pair, be arranged in an A-shape. A parallel and inclined to the longitudinal axis of the base body 1 arrangement of all profile elements 6 is also possible as a

different number of profile elements, which are inclined in one direction and in the other direction.

In the upper pair of profile elements 6, the bend 14 of the connecting element 7 is perpendicular to the longitudinal direction 10

Profile element 6 aligned. In the second, lower pair, a possible variant is shown in which the orientation of the connecting element 7 or its bend 14 on the base body 1 and thus the sliding or tilting direction oriented, resulting in a more uniform application of force.

5 shows a profile element 6 of Fig. 1. It can be seen that the opening 20 for the anchoring element 3 in the

illustrated embodiment is a slot. This serves initially a defined shift of the

Limiting element. without allowing great drag, to make the system more forgiving upon impact of lighter vehicles

shape .

Fig. 6 shows the profile element 6 of Fig. 5 with a

Connecting element 7 and an anchoring element 3 without the main body 1. The anchoring element 3 is connected by means of a nut 4 and a washer 5 with the profile element 6. The washer 5 helps to tear out the To impede anchoring element 3 with the nut 4 from the profile element 6.

Fig. 7 shows a second embodiment of a

Profile element 6a. A slot 20b also allows a slight displacement of the delimiting element in the direction of the longitudinal axis 10. The holes 21a, through which the legs 13 of the connecting element 7 protrude, are laterally in the

Legs of the profile element 6a arranged. The compound of the profile element 6a with the anchoring element 3 and the

Incidentally, connecting element 3 can take place analogously to the embodiment shown in FIG. 6.

Fig. 8 shows a third embodiment of a

Profile element 6b. In this case, the profile element 6b instead of a U-profile shape on an L-profile shape. A slot 20b also allows a slight displacement of the limiting element here. The connecting element 3 can through the hole 21 b in the one

Leg are connected in the profile element 6b with this.

Claims

Claims:

1. boundary element for traffic areas, in particular

Bridges, with a device for connecting the

Boundary element with a background (8), wherein the limiting element has a base body (1) with a

Has longitudinal axis in the direction of travel, a support surface (9) and a connected to the base body (1) connecting element (7), wherein a profile element (6) with a

Longitudinal (10) is connected to an anchoring element (3), wherein the anchoring element (3), which serves for connection to the substrate (8), with the

Profile element (6) is connected, and wherein the connection between the profile element (6) and the anchoring element (3) at a distance from the support surface (9), characterized in that the longitudinal direction (10) of the

Profile element (6) at an angle (ß) greater than 45 ° to

Longitudinal axis of the main body (1) extends.

2. limiting element according to claim 1, characterized in that the angle (ß) is greater than 60 °, in particular greater than 75 °, and preferably about 90 °.

3. limiting element according to claim 1 or 2, characterized

characterized in that the base body (1) consists essentially of concrete.

4. delimiting element according to one of claims 1 to 3, characterized in that the profile element (6) a

Profile rail with a U, L, T or I-shaped

Cross section is.

5. delimiting element according to one of claims 1 to 4, characterized in that the longitudinal direction (10) of the

Profile element (6) parallel to the support surface (9) of the

Main body (1) runs.

6. delimiting element according to one of claims 1 to 5, characterized in that the connection of the profile element (6) with the anchoring element (3) and the compound of

Profile element (6) with the connecting element (7)

spaced apart from each other in the longitudinal direction (10) of the profile element (6).

7. delimiting element according to one of claims 1 to 6, characterized in that the anchoring element (3) in the limited traffic area nearest third, preferably quarter, of the profile element (6) is arranged.

8. delimiting element according to one of claims 1 to 7, characterized in that the connection of the connecting element (7) with the profile element (6) in one of the two middle quarters, in particular in the middle third of the

Profile element (6) is arranged.

9. limiting element according to one of claims 1 to 8, characterized in that the anchoring element (3) in

Connection area with the longitudinal axis (10) of the

Profile element (6) an angle between 70 ° and 90 °

includes.

10. delimiting element according to one of claims 1 to 8, characterized in that the connection of the connecting element (7) with the base body (1) in the region of the side of the

Profile element (6) lies, the support surface (9)

turned away.

11. limiting element according to one of claims 1 to 10,

characterized in that the connecting element (7) in the connection region with the longitudinal axis (10) of the

Profile element (6) an angle () <90 °, in particular between 70 ° and 90 °, includes.

12. limiting element according to one of claims 1 to 11, characterized in that the connecting element (7) has a substantially U-shape and that the legs (13) of the U-shape with the main body (1) are connected and the bend (14) of the U-shape, the connection with the profile element (6) forms.

13. limiting element according to one of claims 1 to 11,

characterized in that the connecting element (7) is substantially rod-shaped, at least in one of the support surface (9) facing region has a thread and is connected to a nut with the profile element (6).

14. delimiting element according to one of claims 1 to 13,

characterized in that the base body (1) in

Substantially to the longitudinal axis of the base body (1) has normal standing end faces (23), that each end face (23) has at least one coupling element.

15. delimiting element according to claim 14, characterized in that each end face (23) has at least one projection and / or at least one recess that a

Projection on an end face (23) engages in a recess on an end face (23) of an adjacent base body (1) and that preferably the projections and

Depressions in the lower half of the body,

preferably at a height of the profile elements (6) lie.