EP2893083B1 - In situ concrete safety barrier - Google Patents

Description

The invention relates to a Ortbetonschutzwand according to the preamble of claim 1.

Ortbetonschutzwände be used as a vehicle restraint system, which are intended to prevent vehicles from accidentally leaving a roadway, and thus to keep the vulnerability of the occupants low. An in-situ concrete protective wall is here a concrete wall, which is manufactured on site. Such Ortbetonschutzwände are usually produced by means of a sliding shell method, which can be made in a simple process long continuous Ortbetonschutzwände. In order to prevent the Ortbetonschutzwand breaking through, such Ortbetonschutzwände are provided with a continuous reinforcement. When curing the concrete of the in-situ concrete protection wall and as a result of thermal expansion cracks usually form. Such cracks can propagate over the entire surface and could represent an unpredictable and therefore particularly dangerous weakening of the Ortbetonschutzwand. To prevent an uncontrolled spread of these cracks, these Ortbetonschutzwände may have grooves, the crack propagation is stopped when hitting the groove, or there may be no uncontrolled formation of cracks, since the Ortbetonschutzwand only at the cross-sectional weakening, ie in the grooves, tears.

The disadvantage of this is that these grooves represent a cross-sectional constriction and in a collision case of a vehicle in the region of such a groove, the risk of vehicle breakdown or concrete chipping is increased.

From the WO 00/71821 A1 a wall element for the construction of a traffic control wall is known, wherein a plurality of wall element are combined with a continuous inner reinforcing element.

From the US Pat. No. 3,577,896 is a method for the controlled introduction of fractures in a prestressed concrete body known.

The object of the invention is therefore a Ortbetonschutzwand the beginning specify the type mentioned, with which the mentioned disadvantages can be avoided, with which the risk of vehicle breakdown or concrete chipping in the grooves can be kept low. This is achieved by the features of claim 1 according to the invention. This results in the advantage that the risk of a concrete spalling can be reduced, since any force effects in the groove over a larger space to be distributed. As a result, furthermore, the risk of injury to the vehicle occupants in the event of a vehicle collision can be kept low. Furthermore, the danger of a vehicle breakthrough by the in-situ concrete protective wall in the region of the groove can be kept low by the additional reinforcement reinforcement part. By positioning the reinforcing reinforcement parts only in the region of the groove Ortbetonschutzwand can be further developed economically, as can be dispensed with a complex and costly continuous additional reinforcement. In particular, the transport costs and the use of material of the reinforcing reinforcement parts can thereby be kept low.

Furthermore, the invention relates to a method for producing an in-situ concrete protective wall according to the patent claim 8.

The object of this method is to produce the advantageous in-situ concrete protective wall in a quick and economical manner.

This is achieved by the features of claim 8 according to the invention.

Thereby, the advantageous in-situ concrete protective wall can be easily and reliably manufactured with the at least one reinforcement reinforcement part.

The subclaims relate to further advantageous embodiments of the invention.

It is hereby expressly referred to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.

• Fig. 1 eine erste bevorzugte Ausführungsform einer Ortbetonschutzwand in axonometrischer Darstellung;
• Fig. 2 die Ortbetonschutzwand nach Fig. 1 als Schnitt durch die Nut;
• Fig. 3 eine zweite bevorzugte Ausführungsform einer Ortbetonschutzwand in Seitenansicht;
• Fig. 4 eine erste bevorzugte Ausführungsform eines Bewehrungsverstärkungsteils in axonometrischer Darstellung;
• Fig. 5 der Bewehrungsverstärkungsteil nach Fig. 4 im Aufriss;
• Fig. 6 eine zweite bevorzugte Ausführungsform eines Bewehrungsverstärkungsteils in axonometrischer Darstellung;
• Fig. 7 der Bewehrungsverstärkungsteil nach Fig. 6 im Aufriss;
• Fig. 8 eine dritte bevorzugte Ausführungsform eines Bewehrungsverstärkungsteils in axonometrischer Darstellung; und
• Fig. 9 der Bewehrungsverstärkungsteil nach Fig. 8 im Aufriss.

The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. Showing:

• Fig. 1 a first preferred embodiment of an in-situ concrete protective wall in axonometric representation;
• Fig. 2 the in-situ concrete protective wall Fig. 1 as a section through the groove;
• Fig. 3 a second preferred embodiment of an in-situ concrete protection wall in Side view;
• Fig. 4 a first preferred embodiment of a reinforcement reinforcement part in axonometric representation;
• Fig. 5 the reinforcing reinforcement part after Fig. 4 in the elevation;
• Fig. 6 a second preferred embodiment of a reinforcement reinforcement part in axonometric representation;
• Fig. 7 the reinforcing reinforcement part after Fig. 6 in the elevation;
• Fig. 8 a third preferred embodiment of a reinforcement reinforcement part in axonometric representation; and
• Fig. 9 the reinforcing reinforcement part after Fig. 8 in the elevation.

The Fig. 1 to 3 show preferred embodiments of an in-situ concrete protective wall 1 comprising a, provided with a substantially continuous reinforcement 5, Ortbetonkörper 2. An in-situ concrete protective wall 1 may in this case be part of a vehicle restraint system in particular. Such Ortbetonschutzwände 1 are preferably placed next to roadways to prevent a deal of a vehicle from the road. For this purpose, in particular the longitudinal extent of the in-situ concrete protective wall 1 can be arranged parallel to the longitudinal extent of the adjacent roadway. To avoid damage to impacting vehicles and in particular a rollover of the impacting vehicle may be provided in particular that the in-situ concrete body 2 has a New Jersey profile. An in-situ concrete protective wall 1 has an in-situ concrete body 2, which can be produced, in particular, at the planned site of use. An in-situ concrete body 2 can in this case be produced in particular by means of a sliding shell method. Furthermore, the in-situ concrete protective wall 1 may in particular have a continuous in-situ concrete body 2.

The in-situ concrete body 2 is provided with a substantially continuous reinforcement 5 Mistake. The reinforcement 5 is intended to absorb the tensile forces occurring in the event of an impact and thus to prevent a breakdown of a vehicle. This reinforcement 5 may in particular have one or more reinforcing elements 9, which may be formed, for example, as a traction cable and / or as reinforcing bars. Essentially continuous in this sense means that the reinforcement 5 does not necessarily have to consist of a continuous reinforcing element 9, but that several, in particular overlapping reinforcing elements 9, may be provided.

At least one groove 4 runs on a surface 3 of the in-situ concrete body 2 substantially normal to the longitudinal extent of the in-situ concrete protective wall 1. This groove 4 serves to prevent uncontrolled crack propagation on the surface 3 of the in-situ concrete body 2 during curing of the in-situ concrete body 2. According to the preferred embodiments in Fig. 1 to Fig. 3 may be provided in particular that the groove - in the operating position of the Ortbetonkörpers 2 - from one longitudinal side over the top to the opposite longitudinal side. In other words, that the groove 4 extends over an entire circumference of the surface 3 of the Ortbetonkörpers 2, but without its footprint. But it can also be provided that the groove 4 has a shorter length, for example, that the groove 4 extends only over a longitudinal side. It can also be provided that the groove 4 extends over an entire circumference of the surface 3. The groove 4 may in particular have a depth between 3 cm and 5 cm.

It is provided that at least one reinforcement reinforcement part 6 is arranged in the in-situ concrete body 2 in the region of the at least one groove 4. The at least one reinforcing reinforcement part 6 can be arranged in particular in the region of the at least one groove 4 in the in-situ concrete body 2, in particular for reinforcing the in-situ concrete protective wall 1 in the region of the at least one groove 4. In other words, the reinforcing reinforcement part 6 is a local, ie in particular non-continuous, additional reinforcement which additionally reinforces the in-situ concrete body 2 in the region of the groove 4. The reinforcing reinforcement part 6 may in particular be made of metal, particularly preferably of reinforcing steel. Particularly preferably, the reinforcing reinforcement part 6 may be formed of at least partially galvanized steel be. As a result, the reinforcing reinforcement part 6 can be arranged close to the surface of the in-situ concrete body 2.

This results in the advantage that the risk of a concrete bequeath can be reduced since any force effects in the region of the groove 4 are distributed over a larger space. As a result, furthermore, the risk of injury to the vehicle occupants in the event of a vehicle collision can be kept low. Furthermore, the risk of a vehicle breakthrough by the in-situ concrete protection wall 1 in the region of the groove 4 can be kept low by the additional reinforcement reinforcement part 6. Due to the positioning of the reinforcement reinforcement parts 6 only in the region of the groove 4, the in-situ concrete protection wall 1 can further be formed economically, as can be dispensed with a complex and costly continuous additional reinforcement. In particular, by the transport cost and the use of material of the reinforcing reinforcement parts 6 can be kept low.

In particular, it can be provided that the in-situ concrete body 2 has a plurality of grooves 4, wherein in particular the grooves 4 can be arranged at substantially constant distances from each other. In particular, it may be envisaged that the substantially constant distance between two grooves 4 is between 3 m and 15 m.

Furthermore, it can be provided that at least one reinforcing reinforcement part 6 is provided per groove 4 substantially. In this case, it may in particular be provided that the extension of the at least one reinforcing reinforcement part 6 parallel to the longitudinal extent of the in-situ concrete protective wall 1 is less than half, in particular less than a quarter, of the distances between two adjacent grooves 4. Particularly preferably, it can be provided that the at least one reinforcing reinforcement part 6 is between 0.5 m and 1.5 m long. As a result, the in-situ concrete wall can be designed to be at least 50%, in particular at least 75%, of the longitudinal extension without reinforcing reinforcement part 6, as a result of which the material input for the reinforcing reinforcement parts 6 can be kept low.

The first preferred embodiment of an in-situ concrete protection wall 1 in Fig. 1 and Fig. 2 , As well as the second preferred embodiment of an in-situ concrete protection wall 1 in Fig. 3 each have 4 reinforcing elements 9. In Fig. 1 and Fig. 3 some of the concealed by the Ortbetonkörper 2 reinforcement elements 9 and reinforcing reinforcement part 6 are shown by dashed lines.

In particular, it can be provided that a reinforcement reinforcement part 6 is arranged in regions substantially around a reinforcement element 9 around.

According to the first preferred embodiment of an in-situ concrete protection wall 1, provision may be made for merely a reinforcing reinforcing part 6 to be arranged in the region of the groove 4, which is arranged in particular around the uppermost reinforcing element 9.

According to the second preferred embodiment of an in-situ concrete protection wall 1, it can be provided that a reinforcement reinforcement part 6 is arranged around or on each reinforcement element 9.

Particularly preferably, it can be provided that the at least one reinforcing reinforcement part 6 is fastened to the reinforcement 5. This attachment can be done in a variety of ways, such as by clamping, welding, riveting, bolting, tying, and / or deforming, for a non-exhaustive listing. By attaching the at least one reinforcement reinforcement part 6 to the substantially continuous reinforcement 5, tensile forces in the region of the groove 4 can be distributed over a larger area. Furthermore, the manufacture of the in-situ concrete protective wall 1 can thereby be simplified, since the at least one reinforcing reinforcement part 6 can be fixed to the reinforcement 5.

Alternatively it can be provided that the at least one reinforcing reinforcement part 6 is self-standing, or is merely placed on the reinforcement 5.

Particularly preferably, it can be provided that the reinforcing reinforcement part 6 has a marking 7, which marking 7 reaches at least as far as the surface 3 of the in-situ concrete body 2. The mark 7 can in this case in particular as Extension be formed. The marking 7 may in particular be formed as a part of the at least one reinforcing reinforcement part 6, which extends at least as far as the surface 3 of the in-situ concrete body 2, while the remaining reinforcing reinforcement part 6 is arranged in the in-situ concrete body 2. The fact that the marking 7 extends at least as far as the surface 3 of the in-situ concrete body 2 means, in particular, that the marking 7 is visible from the outside, either because the marking 7 directly adjoins the surface 3 or beyond the surface 3. As a result, it can be determined from the outside in a simple manner, where the in-situ concrete body 2 is reinforced by the at least one reinforcing reinforcement part 6, and where accordingly the grooves 4 are to be introduced.

Furthermore, it can be provided that the at least one reinforcement reinforcement part 6 is integrally formed, so that the marking 7 and the remaining reinforcing reinforcement part in one piece, and in particular from the same material, are.

Alternatively it can be provided that the reinforcing reinforcement part 6 is formed in several pieces, in particular in two pieces, whereby in particular the marking 7 can be made of a different material than the remaining reinforcing reinforcement part 6. Since the marker 7 preferably has no forces to absorb, the marker 7 may be made of lightweight and / or economical materials such as plastic, wood and / or cardboard, the marker 7 may be attached to the remaining reinforcing reinforcement part 6. As a result, the reinforcement reinforcement part 6 can be made simpler and lighter, in which case reinforcing steel can in particular be saved.

According to the second preferred embodiment of an in-situ concrete protection wall 1, provision can be made, in particular, for only one reinforcement reinforcement part 6 to have a marking 7 per groove 4.

In particular, it can be provided that the at least one groove 4 is arranged at a predetermined distance from the marking 7. For example, the groove 4 may be arranged immediately adjacent to the marking 7. This can be special preferably take place when the marking 7, as in the preferred embodiments of a reinforcement reinforcement part 6 in Fig. 4 to Fig. 9 shown, is arranged centrally.

Furthermore, it can be provided that the groove 4 extends directly over the marking 7, wherein in particular parts of the marking can be removed in the formation of the groove 4.

According to an embodiment, not shown, it may also be provided that the marking 7 is arranged eccentrically on the reinforcing reinforcement part 6, in particular on the edge of the reinforcing reinforcement part 6. Here, the groove 4 can be introduced at a predetermined distance to the mark 7, wherein this predetermined distance, in particular the distance of the mark to the center of the reinforcing reinforcement part 6 is. Thereby, the mark 7, which does not absorb any forces, spaced from the groove 4 are arranged, whereby no additional weakening of the Ortbetonkörpers 2 in the region of the groove 4 takes place by the marking 7.

The reinforcing reinforcement part 6 may be formed as a substantially one-dimensional body, for example as a longitudinal bar. As a substantially one-dimensional body in this case, in particular a body can be considered, which extends in a Cartesian axis much further than in the other two Cartesian axes. A reinforcing reinforcement part 6 designed as a rod can then be fastened to the reinforcement 5.

Furthermore, it can be provided that the reinforcing reinforcement part 6 is designed as a substantially two-dimensional body, for example as a plate. A substantially two-dimensional body may be considered to be a body which extends substantially further into two Cartesian axes than into the third Cartesian axis. A reinforcement reinforcement part 6 designed as a plate can then be fastened to the reinforcement 5. Furthermore, a reinforcing reinforcement part 6 designed as a plate can have perforations.

Particularly preferably, it can be provided that the reinforcing reinforcement part 6 as a three-dimensional body, for example as a cuboid or as helical body, is formed. As a three-dimensional body can be considered in this sense, in particular a body whose longest longitudinal extent in a Cartesian axis can be up to ten times the other two longitudinal extents in the other Cartesian axes. This three-dimensional body can in particular have at least one opening through which the in-situ concrete body 2 can engage in the reinforcing reinforcement part 6. For example, a reinforcing reinforcement member 6 formed as a three-dimensional body may be milled from a body, or formed by a curved plate. In contrast to a rod-shaped or plate-shaped reinforcing reinforcement part 6, such a reinforcing reinforcing part 6 has the advantage that the in-situ concrete body 2 can be reinforced by the reinforcing reinforcement part 6 in a significantly larger space.

According to the in Fig. 4 to Fig. 9 illustrated preferred embodiments of reinforcing reinforcing members 6 may be particularly preferably provided that the at least one reinforcing reinforcement part 6 at least one rod 8, in particular a plurality of rods 8, comprises, and that the at least one rod 8 forms a three-dimensional body, in particular a reinforcing cage, and / / or part of the three-dimensional body. Here, the diameter of the at least one rod 8 may be substantially smaller than the dimensions of the three-dimensional body. For better clarity are in 4, 6 and 8 not all rods 8 provided with a reference numeral. Such a three-dimensional body may, for example, be formed by a plurality of bars 8 connected to one another. However, the reinforcement reinforcement part 6 can also be formed only by a bent rod 8. By using at least one rod 8 for forming the three-dimensional body, this body may have a plurality of large apertures through which the Ortbetonkörper 2 can pass. As a result, a particularly lightweight and easily formed reinforcing reinforcement part 6 can be formed, which can reinforce a large space of the in-situ concrete body 2.

According to the first preferred embodiment of a reinforcing reinforcing part 6 in FIG 4 and FIG. 5 For example, the reinforcing reinforcement part 6 may be referred to as Reinforcing cage be formed. For this purpose, in particular a plurality, in particular four, straight bars 8 may be provided, which are arranged parallel to the reinforcement 5, in particular to the reinforcing element 9, wherein a plurality of bent rods 8 are arranged on the straight bars 8. The bent rods 8 can in this case be bent into a closed line, for example a ring or the circumference of a polygon, in particular a square.

According to Fig. 5 it can be provided that the first preferred embodiment of a reinforcing reinforcing member 6 is arranged around a reinforcing element 9, wherein the reinforcing element 9 of the reinforcement 5 can be arranged within a surface surrounded by the curved rods. Here, the reinforcing reinforcement parts 6 can be pushed onto the individual reinforcing elements 9 and then secured.

According to the second preferred embodiment of a reinforcement reinforcement part 6 in FIG Fig. 6 and Fig. 7 it can be provided that the reinforcing reinforcement part 6 has a receptacle 10 for placement on the reinforcement 5, in particular on a reinforcement element 9. For this purpose, the bent rods can in particular form an inwardly directed loop, which loop is provided for receiving the reinforcement 8. As a result, the reinforcing reinforcement part 6 can subsequently be simply placed on a reinforcement 5. As a result, an additional attachment of the reinforcing reinforcing member 6 to the reinforcement 5 does not need to be made, or may be particularly simple.

According to the third preferred embodiment of a reinforcing reinforcing member 6 ind FIGS. 8 and 9 For example, the reinforcing reinforcement member 6 may comprise only a bent rod 8 bent substantially in a helix. This helix may in particular be connected at the ends to the reinforcement 5. This third preferred embodiment of a reinforcing reinforcing member 6 is particularly easy to manufacture and can also be subsequently attached to a finished continuous reinforcement 5. Furthermore, such a reinforcement reinforcement part 6 offers the advantage that it is particularly easy to introduce into the in-situ concrete body 2 in a sliding shell method. In order to avoid splintering of the Ortbetonkörpers 2 in the groove 4 particularly well can be provided in particular that the at least one groove 4 in the Ortbetonkörper 2 defines a core cross-section transverse to the longitudinal extension of the Ortbetonschutzwand 1, and that the at least one reinforcing reinforcement part 6 at least partially outside of the core cross-section is arranged. The core cross section is in this case that continuous cross section of the in-situ concrete body 2, which is free of interruptions. The core cross section corresponds to the hatched area in Fig. 2 , As a result, the groove engages in the at least one reinforcing reinforcement part 6, whereby the at least one reinforcing reinforcement part 6 can be arranged particularly close to the surface. Furthermore, the at least one reinforcing reinforcement part 6 can thereby additionally particularly reinforce the parts of the in-situ concrete body 2 exposed by the groove 4. It can also be provided that the at least one groove 4 is cut into the at least one reinforcing reinforcement part 6.

A method for producing an in-situ concrete protective wall 1, in particular the in-situ concrete protective wall 1 described above, will be described below.

For this purpose, a substantially continuous reinforcement 5 is arranged, wherein in the region of the reinforcement 5 at least one reinforcing reinforcement part 6 is arranged. Here, in particular, the reinforcement 5 can be arranged at the point where the Ortbetonschutzwand 1 is to be produced.

Furthermore, it is provided that in a concreting process, the reinforcement 5 and the at least one reinforcing reinforcement part 6 is enveloped to form an in-situ concrete body 2. The concreting process can be carried out in particular by means of a sliding cup method.

It is further provided that, after a predetermined degree of cure of the in-situ concrete body 2, at least one groove 4 is introduced into a surface 3 of the in-situ concrete body 2 in the region of the at least one reinforcing reinforcement part 6. The predetermined degree of hardening may in this case preferably be a degree of hardening of the concrete of the in-situ concrete body 2, in which the in-situ concrete body 2 is statically stable in such a way that it retains a shape without external action, but has not yet completely hardened.

As a result, an advantageous in-situ concrete protective wall 1 can be easily manufactured.

In this case, it can be provided, in particular, that a multiplicity of reinforcing reinforcement parts 6 are arranged on the reinforcement, and that the reinforcing reinforcement parts 6 are arranged at regular intervals, in particular at intervals of 3 m to 15 m, from one another. As a result, several grooves can be arranged at regular intervals.

Particularly preferably, it can be provided that - before the concreting process - the at least one reinforcing reinforcement part 6 is fastened to the reinforcement 5. As a result, forces can be transmitted to the at least one reinforcing reinforcement part 6 better to the reinforcement 5. Furthermore, the danger of a displacement of the at least one reinforcement reinforcement part 6 during the concreting process can thereby be largely avoided.

Furthermore, it can be provided that the groove 4 is introduced by a machining process in the surface 3 of the Ortbetonkörpers 2. As a result, the grooves 4 can be introduced into the surface 3 of the in-situ concrete body 2 in a particularly simple manner.

Particularly preferably, it can be provided that the at least one groove 4 is introduced at a predeterminable distance to the marking 7 of the reinforcing reinforcement part 6 reaching at least as far as the surface 3 of the in-situ concrete body 2. By this mark 7 can be determined in a simple manner even after the concreting process, where the Ortbetonkörper 2 is reinforced by the at least one reinforcing reinforcement part 6, and in this area targeted the groove 4 are introduced. As a result, even in the event that the at least one reinforcing reinforcement part 6 has moved during the concreting process, the groove can be reliably introduced in the area of the at least one reinforcing reinforcement part 6.

If the position of the at least one reinforcing reinforcing part 6 is known, it can be provided that by determining the position, in particular from one end of the in-situ concrete protective wall 1, with the at least one Reinforcing reinforcement part 6 provided region of the Ortbetonkörpers 2 can be determined. This determination of the position can be done for example in a simple way by means of a tape measure. This can be advantageous, in particular for relatively short cast-in-place protective walls 1, since the outlay for determining the position of the at least one reinforcing reinforcement part 6 can be kept low.

Furthermore, it can be provided that, after the concreting step, the area of the in-situ concrete body 2 provided with the at least one reinforcing reinforcement part 6 is determined by means of a detector. This detector may be, for example, a metal detector or an ultrasonic measuring device. It can also be provided that the at least one reinforcing reinforcement part 6 is provided with an RFID chip, and that a suitable receiving device is used as detector. This can also be dispensed with the application of the mark.

In a sliding shell method, in particular, a sliding shell paver can be used, which comprises a front shield, through which shield the continuous reinforcement 5 is guided during the concreting process.

In particular, it may be provided that in a sliding shell method as concreting at least one helical reinforcement reinforcement part 6 is introduced through an opening, in particular through a hole in the front concrete shield 2 in a front plate of a sliding shell. Here, the helical reinforcing reinforcement member 6 can be particularly easily introduced by the movement of the sliding shell paver along the longitudinal extent of the in-situ concrete protection wall 1 through the opening in the shield in the Ortbetonkörper, whereby the manufacturing process is substantially simplified.

Claims (12)

1. An in situ concrete safety barrier (1), comprising an in situ concrete body (2) provided with an essentially continuous reinforcement (5), wherein at least one groove (4) extends substantially perpendicularly to the longitudinal extension of the in situ concrete safety barrier (1) on a surface (3) of the in situ concrete body (2), characterized in that at least one reinforcement reinforcing part (6) is arranged in the in situ concrete body (2) in the region of the at least one groove (4), and the reinforcement reinforcing part (6) forms a local additional reinforcement which reinforces the in situ concrete body (2) in the region of the groove (4) in addition to the continuous reinforcement (5).
2. An in situ concrete safety barrier (1) according to claim 1, characterized in that the at least one reinforcement reinforcing part (6) is fixed to the reinforcement (5).
3. An in situ concrete safety barrier (1) according to claim 1 or 2, characterized in that the reinforcement reinforcing part (6) comprises a marking (7), said marking (7) reaching at least up to the surface (3) of the in situ concrete body (2).
4. An in situ concrete safety barrier (1) according to claim 3, characterized in that the marking (7) is formed as a projection.
5. An in situ concrete safety barrier (1) according to claim 3 or 4, characterized in that the at least one groove (4) is arranged at a predetermined distance from the marking (7).
6. An in situ concrete safety barrier (1) according to one of the claims 1 to 5, characterized in that the at least one reinforcement reinforcing part (6) comprises at least one rod (8), especially a plurality of rods (8), and the at least one rod (8) forms a three-dimensional body, especially a reinforcement cage, and/or is part of the three-dimensional body.
7. An in situ concrete safety barrier (1) according to one of the claims 1 to 5, characterized in that the at least one groove (4) in the in situ concrete body (2) delimits a core cross-section transversely to the longitudinal extension of the in situ concrete safety barrier (1), and the at least one reinforcement reinforcing part (6) is arranged at least partly outside of the core cross-section.
8. A method for producing an in situ concrete safety barrier (1), especially an in situ concrete safety barrier (1) according to one of the claims 1 to 7, wherein a substantially continuous reinforcement (5) is arranged, wherein at least one reinforcement reinforcing part (6) is arranged in the region of the reinforcement (5), wherein the reinforcement (5) and the at least one reinforcement reinforcing part (6) are enclosed in a concreting process for forming an in situ concrete body (2), wherein after a predetermined degree of hardening of the in situ concrete body (2) at least one groove (4) is introduced into a surface (3) of the in situ concrete body (2) in the region of the at least one reinforcement reinforcing part (6), wherein the reinforcement reinforcing part (6) forms a local additional reinforcement which reinforces the in situ concrete body (2) in the region of the groove (4) in addition to the continuous reinforcement (5).
9. A method according to claim 8, characterized in that prior to the concreting process the at least one reinforcement reinforcing part (6) is fastened to the reinforcement (5).
10. A method according to claim 8 or 9, characterized in that the groove (4) is introduced by a metal-cutting process into the surface (3) of the in situ concrete body (2).
11. A method according to one of the claims 8 to 10, characterized in that the at least one groove (4) is introduced at a predeterminable distance from a marking (7) of the reinforcement reinforcing part (6), said marking reaching at least up to the surface (3) of the in situ concrete body (2).
12. A method according to one of the claims 8 to 11, characterized in that in a slipform process as the concreting process at least one helical reinforcement reinforcing part (6) is introduced into the in situ concrete body (2) through a breakthrough, especially through a hole, in a front shield of a concrete slipform paver.

Images