Concrete baffle for a vehicle restraint system

Abstract

In the case of a concrete barrier element (1) for a vehicle restraint system (2), wherein the concrete barrier element (1) comprises a foundation area (3) for embedding with concrete in a foundation (4), wherein the concrete barrier element (1) has two opposite end faces (5, 6) and two opposite longitudinal sides (7, 8), it is proposed that at least one recess (9) for receiving concrete during embedding is arranged in the foundation area (3) on at least one of the two longitudinal sides (7, 8) of the concrete barrier element (1).

Description

[0001] The invention relates to a vehicle restraint system according to the preamble of claim 1.

[0002] Vehicle restraint systems are known to be used as passive safety devices on roads to protect vehicles and their occupants from leaving the road, and also to protect other road users from vehicles leaving the road. These systems include concrete barriers, which are constructed from precast concrete elements or cast in place using slipforming.

[0003] From GB 1 209 646 A, roadway boundary blocks for forming a boundary between a roadway and a sidewalk or between two roadways are known. The roadway boundary blocks have a retaining profile with a projecting section and a recess, which is intended to prevent a tire from driving onto the roadway boundary blocks.

[0004] From US Patent 5,131,786 A, prefabricated concrete barrier elements are known that can be placed on a concrete wall and easily connected to it. These concrete barrier elements are particularly suitable for demarcating elevated roads, for example, at bridges and / or on-ramps. The concrete barrier elements have recesses only on one long side. From US Patent 2009 / 0208286 A1, a curb made of plastic or rubber and a method for laying the curb are known. The curb has recesses on its long sides for receiving concrete and is attached to a reinforcing cage. The curb and the reinforcing cage are fixed with concrete.

[0005] From CN 114 056 408 B a concrete barrier element is known, wherein the concrete barrier element has two recesses extending from a first longitudinal side to a second longitudinal side.

[0006] Furthermore, currently known concrete barrier walls are usually permanently connected to a fixed ground, whereby the fixed ground is formed first and then the concrete barrier wall elements are permanently attached to the ground, or a cast-in-place concrete barrier wall is formed on the ground using a slipform manufacturing machine.

[0007] A disadvantage of currently available concrete barriers made from precast concrete elements is that they require a firm base. For this reason, steel guardrails are used, for example, in medians between two carriageways where the surface is unpaved and soft, such as soil. These steel guardrails are driven into the soft ground. However, a disadvantage of steel guardrails compared to concrete barriers is their lower impact resistance. Furthermore, the construction of cast-in-place concrete barriers is not feasible on soft ground due to the weight of the slipform construction machines required. Such machines would necessitate soil replacement or the creation of a firm base, making their use extremely complex and costly.

[0008] The object of the invention is therefore to provide a concrete barrier element for a vehicle restraint system of the type mentioned above, with which the aforementioned disadvantages can be avoided, and with which a concrete barrier element can also be used on soft ground for a vehicle restraint system.

[0009] According to the invention, this is achieved by the features of claim 1.

[0010] This offers the advantage that a concrete barrier wall can be easily erected even on unpaved and soft ground using concrete barrier wall elements. This eliminates the need for soil replacement to create a load-bearing base for the concrete barrier wall elements. Furthermore, at least one recess in the foundation area allows for a secure connection between the concrete barrier wall elements and the foundation, with the foundation interlocking firmly with the concrete barrier wall element and the ground. Since unpaved and soft ground does not have a smooth surface, the concrete of the foundation can engage with irregularities in the ground, thereby forming a strong bond. As a result, the concrete barrier wall element can exhibit nearly the same strength as a monolithic concrete barrier wall.This eliminates point-like impact forces acting on the foundation in the form of shear and tensile forces, thus eliminating the need for massive anchorages to the foundation.

[0011] The invention further relates to a method for constructing a vehicle restraint system with concrete barrier elements according to the preamble of claim 12.

[0012] The invention therefore further aims to provide a method of the type mentioned at the outset, with which the aforementioned disadvantages can be avoided, and in which a concrete barrier element can also be used on soft ground for a vehicle restraint system.

[0013] According to the invention, this is achieved by the features of claim 12.

[0014] The advantages of this method are equivalent to the advantages of the aforementioned concrete barrier element.

[0015] The dependent claims relate to further advantageous embodiments of the invention.

[0016] Reference is hereby expressly made to the wording of the patent claims, whereby the patent claims are incorporated into the description at this point by reference and are deemed to be reproduced verbatim.

[0017] The invention is described in more detail with reference to the enclosed drawings, in which only preferred embodiments are shown by way of example. These show: Fig. 1 a first preferred embodiment of a concrete barrier element in axonometric representation, Fig. 2 a second preferred embodiment of the concrete barrier element in axonometric representation, Fig. 3 a third preferred embodiment of the concrete barrier element in axonometric representation, Fig. 4the third preferred embodiment of the concrete guide wall element in axonometric representation with a tension band, Fig. 5 a preferred embodiment of a vehicle restraint system with two concrete barrier elements of the third preferred embodiment in top view, Fig. 6 the in Fig. 5 shown cut according to AA, Fig. 7 the in Fig. 6 shown cut according to BB of the in Fig. 5 preferred embodiment of the vehicle restraint system shown, Fig. 8 the in Fig. 6 shown cut according to CC of the in Fig. 5 preferred embodiment of the vehicle restraint system shown, Fig. 9 a cross-section of the third preferred embodiment of the concrete barrier element in front view, Fig. 10 a cross-section of another preferred embodiment of the concrete barrier element with a gripping area, Fig. 11 A fourth preferred embodiment of the concrete barrier element in axonometric representation.

[0018] The Figs. 1 to 11 show at least parts of preferred embodiments of a concrete barrier element 1 for a vehicle restraint system 2, wherein the concrete barrier element 1 comprises a foundation area 3 for embedding with concrete in a foundation 4, wherein the concrete barrier element 1 has two opposite end faces 5, 6 and two opposite longitudinal sides 7, 8, wherein at least one recess 9 for receiving concrete during embedding is arranged in the foundation area 3 on at least one of the two longitudinal sides 7, 8 of the concrete barrier element 1.

[0019] Furthermore, a method for constructing a vehicle restraint system 2 with concrete barrier elements 1 is provided, wherein the concrete barrier elements 1 comprise a foundation area 3 for embedding with concrete in a foundation 4, wherein the concrete barrier elements 1 have two opposite end faces 5, 6 and two opposite longitudinal sides 7, 8, wherein the foundation areas 3 of the concrete barrier elements 1 are arranged in a trench 14, wherein the concrete barrier elements 1 are aligned with their end faces 5, 6, and wherein the trench 14 is filled with concrete to form the foundation 4 such that at least one recess 9 arranged in the trench 14 on at least one of the two longitudinal sides 7, 8 of the concrete barrier element 1 is filled by the concrete of the foundation 4.

[0020] This offers the advantage that a concrete barrier wall made of concrete barrier wall elements 1 can be easily erected even on unpaved and soft ground 19. This eliminates the need for soil replacement to create a load-bearing base for the concrete barrier wall elements 1. Furthermore, the at least one recess 9 in the foundation area 3 allows for a firm connection between the concrete barrier wall elements 1 and the foundation 4, with the foundation 4 interlocking firmly with the concrete barrier wall element 1 and the ground 19. Since unpaved and soft ground 19 does not have a smooth surface, the concrete of the foundation 4 can engage with irregularities in the ground 19, thereby forming a firm bond. As a result, the concrete barrier wall element 1 can exhibit nearly the same resistance as a monolithic concrete barrier wall.This results in no point impact forces acting on foundation 4 in the form of shear forces and tensile forces, meaning that no massively designed anchorages to foundation 4 are required.

[0021] According to the invention, a concrete barrier element 1 is provided for a vehicle restraint system 2. The concrete barrier element 1 is provided to have a first end face 5 and a second end face 6 arranged opposite the first end face 5. Preferably, the first end face 5 is spaced apart from the second end face 6. Figs. 1 to 4 and 11 In the figures, which show exemplary preferred embodiments of the concrete barrier element 1, only the second end face 6 of the concrete barrier element 1 is visible due to the limited representation of the figures. Preferably, the first end face 5 may be designed identically to the second end face 6.

[0022] The concrete barrier element 1 is designed to have a first longitudinal side 7 and a second longitudinal side 8 arranged opposite the first longitudinal side. Preferably, the first longitudinal side 7 is spaced apart from the second longitudinal side 8. Figs. 1 to 3 In the figures, which show exemplary preferred embodiments of the concrete barrier element 1, only the first longitudinal side 7 of the concrete barrier element 1 is visible due to the limited representation of the figures. Preferably, the second longitudinal side 8 may be designed in the same way as the first longitudinal side 7.

[0023] Preferably, the concrete barrier element 1 may comprise at least one bearing surface 15. This bearing surface 15 is preferably the surface with which the concrete barrier element 1, in its erected state, contacts a ground 19, in particular, rests on the ground 19. In the erected state, the concrete barrier element 1 is preferably not yet connected to the foundation 4, but merely rests on the ground 19. The bearing surface 15 can preferably also be referred to as the contact surface. Figs. 1 to 3 and 11 At least one contact surface 15 is shown as an example.

[0024] Preferably, the contact surface 15 in the erected state of the concrete barrier element 1 is a lower end of the concrete barrier element 1.

[0025] In Fig. 1It is shown by way of example that the concrete guide wall element 1 can only have a continuous contact surface 15.

[0026] In the Fig. 2 , 3 and 11 It is shown by way of example that the concrete barrier element 1 can have several contact surfaces 15. Preferably, the concrete barrier element 1, particularly in its erected state, is in contact with the ground 19 with all contact surfaces 15.

[0027] Preferably, the surface of a reinforcement element that contacts the ground 19 can form the bearing surface 15. Particularly preferably, the reinforcement element can be a reinforcing steel bar. Fig. 2 An example of a bearing surface 15 formed with a reinforcement element is shown.

[0028] Preferably, the concrete barrier element 1 may comprise a top surface 16. Preferably, the top surface 16 is arranged opposite and spaced apart from the base surface 15. Fig. 4 The upper surface 16 of the concrete barrier element 1 is shown by way of example in a preferred embodiment of the concrete barrier element 1. Although the upper surface 16 is only shown in this preferred embodiment, the other preferred embodiments of the concrete barrier element 1 may also have the upper surface 16.

[0029] Preferably, the top surface 16 in the erected state of the concrete barrier element 1 is an upper end of the concrete barrier element 1.

[0030] Preferably, the concrete barrier element 1 may have a bottom surface 17. Preferably, the bottom surface 17 is arranged opposite and spaced apart from the top surface 16. Preferably, the bottom surface 17 of the concrete barrier element 1 limits the height of the foundation area 3. Preferably, the bottom surface 17 can limit the vertical extent of the foundation area 3. In this case, the bottom surface 17 preferably forms the vertical boundary of the foundation area 3. Preferably, the bottom surface 17 is arranged between the bearing surface 15 and the top surface 16. Fig. 2 and 3 The underside 17 of the preferred embodiments of the concrete barrier element 1 is shown by way of example. Due to the limited representation of the Fig. 1 was directed to drawing the underside 17 in Fig. 1 abstained.

[0031] Preferably, the concrete guide wall element 1 can be designed as a precast concrete element.

[0032] The concrete barrier element 1 is designed to include a foundation area 3 for embedding in concrete within a foundation 4, particularly during its construction. It is preferably designed for the foundation area 3 to connect to the foundation 4 for the concrete barrier element 1, particularly in a positive-locking manner. It is preferably designed that the concrete barrier element 1 does not rest on the foundation 4, but rather that the foundation area 3 of the concrete barrier element 1 connects to the foundation 4, particularly in a positive-locking manner. This offers the particular advantage that the foundation 4 can interlock particularly well with the foundation area 3, especially with the at least one recess 9 in the foundation area 3, and with the ground 19.

[0033] Foundation 4 is formed during the embedding process with concrete.

[0034] Concrete is a building material that comprises binders, especially cement, and aggregates, especially rock, and is set by the addition of liquid, especially water. The addition of liquid initiates a setting process that causes the concrete to harden.

[0035] Preferably, the concrete barrier element 1 can have an operating state. Preferably, the operating state is the state in which the foundation area 3 is fastened to the foundation 4 and the foundation 4 is fastened to the ground 19. Preferably, the operating state is the state in which the advantages of the concrete barrier element 1 according to the invention can be achieved. For example, a concrete barrier element 1 lying on one of its two longitudinal sides 7, 8 is not an operating state of the concrete barrier element 1 according to the invention.

[0036] Preferably, the foundation area 3 of the concrete barrier element 1 may be at least 5 cm, preferably at least 10 cm, particularly preferably at least 15 cm high, starting from the base surface 15 of the concrete barrier element 1.

[0037] Preferably, the foundation area 3 of the concrete barrier element 1 may be a maximum of 50 cm, preferably a maximum of 40 cm, and particularly preferably a maximum of 30 cm, high from the base surface 15 of the concrete barrier element 1.

[0038] The embedding or connection of the foundation area 3 with the foundation 4 can preferably also be referred to as fastening. It is preferably provided that the foundation area 3 of the concrete barrier element 1 is fastened to the foundation 4.

[0039] The foundation 4 is preferably designed to counteract displacement of the concrete barrier element 1 in the event of a vehicle impacting it. By preferably providing that the foundation area 3 connects to the foundation 4 in a form-fitting manner, the displacement of the concrete barrier element 1 can be effectively counteracted.

[0040] Preferably, the concrete barrier element 1 is connected to the ground 19 by means of the foundation 4.

[0041] Preferably, the concrete barrier element 1 is attached to the ground 19 by means of the foundation 4.

[0042] Preferably, the ground 19 can be unpaved. Preferably, unpaved ground can also be referred to as unsealed ground. A sealed ground is preferably ground into which no precipitation can penetrate from above. Preferably, the ground 19 comprises sand and / or silt and / or clay. Preferably, ground comprising sand and / or silt and / or clay is a soft ground. Preferably, asphalted or concreted ground is a hard ground. Preferably, uncompacted soil can be referred to as soft ground 19. However, the advantageous effects of the concrete barrier element 1 according to the invention are not limited to the use of soft ground 19, but are also particularly evident with paved ground.

[0043] Preferably, the concrete barrier element 1 can be formed in one piece. A one-piece concrete barrier element 1 is defined as a concrete barrier element 1 that consists of only one piece. The one-piece concrete barrier element 1 can preferably be manufactured by casting concrete into a mold forming the concrete barrier element 1. It is preferably provided that the mold includes reinforcing elements and / or at least one tension band.

[0044] Preferably, the concrete guide wall element 1 can include a reinforcement element.

[0045] Preferably, the concrete barrier element 1 can be made only of concrete, in particular fiber-reinforced concrete, and reinforcement elements.

[0046] Preferably, the concrete barrier element 1 can consist solely of concrete, in particular fiber-reinforced concrete.

[0047] Preferably, at least one recess 9 for receiving concrete during embedding is provided on both longitudinal sides 7, 8 of the concrete barrier element 1 in the foundation area 3. This offers the advantage of creating a particularly strong interlock with the foundation 4 for the concrete barrier elements 1, whereby the foundation 4 interlocks firmly with the concrete barrier element 1 and the ground 19.

[0048] Preferably, at least one recess 9 for receiving concrete of the foundation 4 is arranged on the first longitudinal side 7 and on the second longitudinal side 8. A recess 9 can preferably also be referred to as a recessed space. Preferably, the recess 9 is an opening of concrete in the foundation area 3 of the concrete barrier element 1.

[0049] Preferably, the at least two recesses 9 arranged on the two longitudinal sides 7, 8 of the concrete barrier element 1 in the foundation area 3 can be filled with concrete from the foundation 4 during embedding. This advantageously results in effective fastening of the concrete barrier element 1 to the foundation 4, thereby effectively counteracting displacement of the concrete barrier element 1 in the event of a vehicle impacting it.

[0050] Preferably, the at least two recesses 9 arranged on the two longitudinal sides 7, 8 of the concrete barrier element 1 are connected to each other in the foundation area 3 to form a recess 9 extending from a first longitudinal side 7 to a second longitudinal side 8 of the concrete barrier element 1. This has the advantage that a continuous recessed space is formed from the first longitudinal side 7 to the second longitudinal side 8, allowing a larger quantity of concrete from the foundation 4 to be accommodated by this continuous recessed space. This results in even better anchoring of the foundation area 3 to the foundation 4. Consequently, to anchor the foundation area 3 to the foundation 4, the concrete can be poured into the foundation 4 from only one of the two longitudinal sides 7, 8. Figs. 1 to 4 Preferred embodiments of the through-hole 9 are shown as examples.

[0051] Preferably, the foundation area 3 of the concrete barrier element 1 comprises several identically designed segments 10, and each segment 10 has at least one recess 9 for receiving concrete from the foundation 4. This offers the advantage that the concrete barrier element 1 can form a particularly homogeneous connection with the foundation 4. This allows for a uniform force transmission between the concrete barrier element 1 and the foundation 4, especially in the event of a vehicle impacting the concrete barrier element 1. Figs. 1 to 4 The preferred embodiments of the concrete barrier element 1 shown illustrate four segments 10. Each segment comprises, in the Figs. 1 to 4 Visible segment 10 on both longitudinal sides 7, 8 of the concrete barrier element 1 each has at least one recess 9 for receiving concrete of the foundation 4. However, the number of segments 10 is not limited to those shown in the Figs. 1 to 4The preferred embodiments of the concrete barrier element 1 shown are limited, wherein the concrete barrier element 1 may, for example, comprise only two segments 10 or more than four segments 10.

[0052] Preferably, the foundation area 3 of the concrete barrier element 1 may comprise several similarly designed segments 10, and in each segment 10 at least one recess 9 for receiving concrete of the foundation 4 is arranged on both longitudinal sides 7, 8 of the concrete barrier element 1.

[0053] Preferably, the segments 10 may be separated from each other along the longitudinal extent of the concrete barrier element 1.

[0054] Preferably, the similarly designed segments 10 may deviate from the similar design at the end faces 5, 6 of the concrete barrier element 1.

[0055] Preferably, the foundation area 3 of the concrete barrier element 1 may consist of at least two segments 10, the at least two segments 10 may be separated from each other along the longitudinal extent of the concrete barrier element 1, and at least one recess 9 for receiving concrete of the foundation 4 may be arranged in each segment 10 of the at least two segments 10, in particular on each longitudinal side 7, 8 of the concrete barrier element 1.

[0056] Preferably, the recesses 9 arranged in each segment of the foundation area 3 are connected to each other to form a continuous recess 9 extending from the first longitudinal side 7 to the second longitudinal side 8 of the concrete barrier element 1. This offers the particular advantage that a continuous recess 9 is arranged in each segment 10, thereby enabling effective fastening of the concrete barrier element 1 to the foundation 4.

[0057] Preferably, the at least two recesses 9 arranged on the two longitudinal sides 7, 8 of the concrete barrier element 1 in the foundation area 3 may comprise at least 30 percent, preferably at least 50 percent, and particularly preferably at least 70 percent, of the volume of the foundation area 3. This advantageously allows a sufficiently large space to be formed in the foundation area 3 to ensure good fastening of the foundation area 3 to the foundation 4.

[0058] Preferably, the recesses 9 arranged in the foundation area 3 may constitute at least 30 percent, preferably at least 50 percent, and particularly preferably at least 70 percent of the volume of the foundation area 3.

[0059] Preferably, the at least two recesses 9 arranged on the two longitudinal sides 7, 8 of the concrete barrier element 1 in the foundation area 3 of the concrete barrier element 1 may constitute a maximum of 95 percent, preferably a maximum of 90 percent, particularly preferably a maximum of 80 percent, of the volume of the foundation area 3.

[0060] Preferably, the concrete barrier element 1 includes a retention area 11 arranged above the foundation area 3 for vehicles impacting the concrete barrier element 1, and the retention area 11 has a retention profile. This allows for effective deflection of a vehicle impacting the concrete barrier element 1 back into a roadway.

[0061] Preferably, the retention profile may be a New Jersey profile, a step profile, or a constant slope profile. The retention profile is preferably the portion of the outline of the cross-section of the concrete barrier element 1 that is formed in the retention area 11 on the first longitudinal side 7 and / or on the second longitudinal side 8. Figs. 1 to 3 For example, retention area 11 is shown with a constant slope profile. In the Fig. 11 For example, retention area 11 is shown with a New Jersey profile. Since the New Jersey profile and the Step profile are well-known retention profiles, further explanation of these profiles has been omitted.

[0062] Preferably, the second longitudinal side 8 of the concrete barrier element 1 is designed in the same way as the first longitudinal side 7. This offers the advantage that the concrete barrier element 1 can be prefabricated particularly easily to separate two carriageways.

[0063] Preferably, the containment area 11 may be arranged above the foundation area 3 in the operating state of the concrete barrier element 1.

[0064] Preferably, the containment area 11 may be provided for to connect to the foundation area 3, in particular directly.

[0065] Preferably, the retention area 11 of the concrete barrier element 1 may be at least 50 cm high, preferably at least 60 cm high, and particularly preferably at least 70 cm high.

[0066] Preferably, the retention area 11 of the concrete barrier element 1 may be a maximum of 150 cm, preferably a maximum of 130 cm, and particularly preferably a maximum of 100 cm high.

[0067] Preferably, the concrete barrier element 1 may be designed to consist solely of the containment area 11 and the foundation area 3. It may also be preferably arranged that, starting from the base surface 15 of the concrete barrier element 1, the foundation area 3 is located between the base surface 15 and the underside 17, and the containment area 11 is located between the underside 17 and the top surface 16.

[0068] Preferably, the concrete barrier element 1 includes a gripping area 27 arranged above the containment area 11. Preferably, the gripping area 27 is arranged on the first longitudinal side 7 and on the second longitudinal side 8. The gripping area 27 is preferably designed such that a machine can easily grip the concrete barrier element 1 and place it at a designated installation site with essentially no damage. Preferably, the gripping area 27 can comprise essentially vertical surfaces for easy gripping of the concrete barrier element 1 on both longitudinal sides 7 and 8. This has the advantage that the concrete barrier element 1 can be transported to and installed at the designated installation site with as little damage as possible. Fig. 10 An exemplary further preferred embodiment of the concrete guide wall element 1 with the gripping area 27 arranged above the retention area 11 is shown.

[0069] Preferably, the retention area 11 and the gripping area 27 can be formed by the retention profile, in particular by a New Jersey profile. This is exemplified in Fig. 11 shown.

[0070] Preferably, the foundation area 3 may include several spacers 12 for forming the at least one recess 9, in particular the recesses 9. This has the advantage that the at least one recess 9 can be formed quickly and easily, thus enabling particularly simple and effective fastening of the foundation area 3 to the foundation 4. Figs. 1 to 4 The spacers 12 are shown by way of example on the preferred embodiments of the concrete barrier element 1.

[0071] Preferably, the spacer 12 can also be referred to as a crossbar.

[0072] Preferably, the spacers 12 extend substantially from the first longitudinal side 7 to the second longitudinal side 8. This is exemplified in the Fig. 4 and 11 shown.

[0073] In the Fig. 1 and 3 It is particularly evident that the spacers 12 can be made of concrete. Preferably, the spacers 12 can also be made of concrete with reinforcing elements.

[0074] In the Fig. 2 It is particularly evident that the spacers 12 can be formed from a reinforcement element. Preferably, the reinforcement element forming the spacers 12 is also arranged as reinforcement in the retention area 11. Preferably, the reinforcement element can be a reinforcing steel bar.

[0075] Preferably the spacers 12 can be arranged substantially parallel to the first end face 5 and / or the second end face 6 of the concrete barrier element 1.

[0076] Preferably, the foundation area 3 may include several spacers 12 for spacing the retention area 11 from the base surface 15.

[0077] Preferably, it can be provided that at least one spacer 12 is arranged in each segment.

[0078] Preferably, the multiple spacers 12 in the foundation area 3 of the concrete barrier element 1 each form a continuous surface extending from the first longitudinal side 7 to the second longitudinal side 8, wherein the continuous surface is arranged substantially parallel to the first end face 5 and / or the second end face 6 of the concrete barrier element 1. Preferably, the segments 10 are separated from one another along the longitudinal extent of the concrete barrier element 1 by means of the spacers 12.

[0079] Preferably, a further recess 13 can be arranged above the foundation area 3 inside the concrete barrier element 1. This advantageously saves concrete for the concrete barrier element 1, thereby reducing costs in the production of the concrete barrier element 1 as well as in transport due to weight reduction. By filling the foundation area 3 with concrete, a hermetic seal of the further recess 13 against environmental influences can be achieved as easily as possible.

[0080] Preferably, the further recess 13 inside the concrete barrier element 1 is connected to the at least two recesses 9 arranged on the two longitudinal sides 7, 8 of the concrete barrier element 1 in the foundation area 3 of the concrete barrier element 1.

[0081] According to the invention, a vehicle restraint system 2 comprising several concrete barrier elements 1 is provided, wherein the concrete barrier elements 1 are arranged in a row at the end faces 5, 6. Fig. 5 An exemplary preferred embodiment of the vehicle restraint system 2 with two concrete barrier elements 1 of the in Fig. 3 The preferred embodiment is shown in a top view. Furthermore, in Fig. 5 A section according to AA is drawn, which is in the Fig. 6 This is shown as an example.

[0082] In the Figs. 5 and 6 Each example is an embodiment of the vehicle restraint system 2 with two concrete barrier elements 1 of the in Fig. 3 The preferred embodiment shown is shown, wherein a first end face 5 of a first concrete barrier element 1 adjoins a second end face 6 of a second concrete barrier element 1.

[0083] According to the invention, the foundation areas 3 of the concrete barrier elements 1 are arranged in a trench 14, and the trench 14 is filled with concrete such that the concrete in the trench 14 fills the recesses 9 of the concrete barrier elements 1 located in the trench 14. This offers the advantage of a particularly simple and quick way to establish an effective connection between the concrete barrier element 1 and the foundation 4. This also allows the use of concrete barrier elements 1 on soft ground, without the need to first construct a firm base 19 capable of supporting the weight of the concrete barrier element.Furthermore, this eliminates the need for an additional connection between the concrete barrier elements 1, resulting in significant cost and resource savings in the construction and design of a vehicle restraint system 2 using the concrete barrier elements 1 according to the invention, compared to vehicle restraint systems made of currently known concrete barrier elements. Preferably, the trench 14 is arranged next to a roadway.

[0084] Preferably, trench 14 is dug first, then the foundation area 3 of the concrete barrier element 1 is placed in trench 14 and subsequently trench 14 is filled with concrete.

[0085] Preferably, trench 14 can also be excavated or dug.

[0086] Preferably, the height of the trench 14 can be provided to essentially correspond to the height of the foundation area 3 of at least one concrete barrier element 1.

[0087] Preferably, the height of the trench 14 is greater than the height of the foundation area 3 of at least one concrete barrier element 1. It is particularly advantageous that the difference between the height of the trench 14 and the height of the foundation area 3 is a maximum of 15 cm, more preferably a maximum of 10 cm, and more specifically a maximum of 5 cm. This offers the particular advantage that a layer of soil can be applied over the concrete poured into the trench 14, thus preventing the embedding of the concrete barrier elements 1 in the foundation 4 from being immediately apparent to a person looking at the vehicle restraint system 2.

[0088] Preferably, a leveling layer 18 is provided in the trench 14. The leveling layer 18 is preferably intended to improve the contact of the at least one bearing surface 15 with the ground 19. Preferably, the leveling layer 18 is provided to level the ground 19. Preferably, the leveling layer 18 can also be referred to as fill. Preferably, the leveling layer 18 can comprise gravel or sand. Fig. 7 is an example of the one in Fig. 6 shown cut according to BB of the in Fig. 5 The preferred embodiment of the vehicle restraint system 2 is shown. Furthermore, in Fig. 8 the in Fig. 6 shown cut according to CC of the in Fig. 5 The preferred embodiment of the vehicle restraint system 2 is shown. In this embodiment, the Figs. 7 and 8It has been shown by way of example that the leveling layer 18 is arranged in trench 14 and that trench 14 is filled with concrete from foundation 4. This is particularly evident by comparison of the Figs. 7 and 8 It is evident that the concrete of foundation 4 fills the recesses 9 in the foundation area 3 after the concrete for foundation 4 has been poured.

[0089] Preferably, at least part of the trench 14 is filled with concrete over its entire cross-sectional width. Preferably, the filling of the trench 14 can also be referred to as concreting. This offers the advantage of achieving particularly good anchoring of the concrete barrier element 1 in the foundation 4.

[0090] Preferably, the cross-sectional width of the trench 14 is the maximum width of a cross-sectional surface of the trench 14 transversely, in particular orthogonally or at right angles, to its longitudinal extent.

[0091] Preferably, trench 14 may be provided for to be essentially completely filled with concrete.

[0092] Preferably, trench 14 can be filled with concrete without formwork.

[0093] According to the invention, the trench 14 is at least 5 cm, preferably at least 10 cm, and particularly preferably at least 15 cm wider than the foundation area 3 of at least one concrete barrier element 1. This offers the advantage that the foundation 4 can be designed particularly simply. A concrete mixer can then pour the concrete for the foundation 4 into the trench 14 along at least one of the two longitudinal sides 7, 8 of the concrete barrier element 1, thus achieving quick and easy anchoring of the concrete barrier elements 1 in the foundation 4.

[0094] Preferably, the trench 14 may be wider by a maximum of 40 cm, preferably a maximum of 30 cm, and particularly preferably a maximum of 20 cm, than the foundation area 3 of at least one concrete barrier element 1.

[0095] Preferably, the width of the trench 14 can be the cross-sectional width of the trench 14.

[0096] Preferably, the concrete barrier elements 1 may be arranged essentially in the middle of the trench 14.

[0097] Preferably, the concrete barrier elements 1 of the vehicle restraint system 2 may be designed in the same way.

[0098] Preferably, the concrete barrier elements 1 of the vehicle restraint system 2 may be designed without tension bands. This offers the advantage of significant cost savings for the concrete barrier element 1, while still providing effective protection against vehicles impacting the concrete barrier element 1.

[0099] Alternatively, the concrete barrier element 1 can be provided for to include a tension band 20. In Fig. 4 An example of a tension band 20 is shown on the preferred embodiment of the concrete barrier element 1. However, this preferred embodiment of the concrete barrier element 1 is not limited to the design with the tension band 20. Preferably, the Fig. 4 The preferred embodiment of the concrete guide wall element 1 shown may also be designed without tension bands.

[0100] Preferably, the concrete barrier elements 1 of the vehicle restraint system 2 may be designed without couplings.

[0101] Preferably, the concrete barrier elements 1 of the vehicle restraint system 2 are connected to each other only by means of the foundation 4. This offers the advantage that effective protection against vehicles impacting the concrete barrier element 1 can still be achieved with a minimal design.

[0102] The following are principles for understanding and interpreting the disclosure in question.

[0103] Characters are usually introduced with an indefinite article "ein, eine, eines, einer". Unless the context indicates otherwise, "ein, eine, eines, einer" should therefore not be understood as a numeral.

[0104] The conjunction "or" is to be interpreted as inclusive, not exclusive. Unless the context indicates otherwise, "A or B" also includes "A and B," where "A" and "B" represent any two characteristics.

[0105] By means of an ordering numeral, for example "first", "second" or "third", a feature X or an object Y is distinguished in several embodiments, unless otherwise defined by the disclosure of the invention. In particular, a feature X or object Y with an ordering numeral in a claim does not mean that an embodiment of the invention falling under that claim must have a further feature X or a further object Y.

[0106] The phrase "essentially" in conjunction with a numerical value includes a tolerance of ± 10% around the stated numerical value, unless otherwise indicated by the context.

[0107] Value ranges include the endpoints unless the context indicates otherwise.

Claims

1. Vehicle restraint system (2) comprising a plurality of concrete barrier elements (1), wherein the concrete barrier elements (1) comprise a foundation area (3) for embedding with concrete in a foundation (4), wherein the concrete barrier elements (1) have two opposite end faces (5, 6) and two opposite longitudinal sides (7, 8), wherein at least one recess (9) for receiving concrete during embedding is arranged in the foundation area (3) on at least one of the two longitudinal sides (7, 8) of the concrete barrier elements (1), wherein the concrete barrier elements (1) are arranged in a row on the end faces (5, 6), characterized in that the foundation areas (3) of the concrete barrier elements (1) are arranged in a trench (14), in that the trench (14) is filled with concrete in such a way that the concrete of the trench (14) fills the recesses (9) of the concrete barrier elements (1) arranged in the trench (14), that the trench (14) is at least 5 cm wider than the foundation area (3) of at least one concrete barrier element (1) of the concrete barrier elements (1).

2. Vehicle restraint system (2) according to claim 1, characterized in that at least one recess (9) for receiving concrete during embedding is arranged in the foundation area (3) on both long sides (7, 8) of the concrete barrier elements (1).

3. Vehicle restraint system (2) according to claim 2, characterized in that the at least two recesses (9) arranged on the two longitudinal sides (7, 8) of the concrete barrier elements (1) in the foundation area (3) are connected to each other to form a recess (9) extending from a first longitudinal side (7) to a second longitudinal side (8) of the concrete barrier elements.

4. Vehicle restraint system (2) according to claim 2 or 3, characterized in that the at least two recesses (9) arranged on the two longitudinal sides (7, 8) of the concrete barrier elements (1) in the foundation area (3) account for at least 30 percent, preferably at least 50 percent, and particularly preferably at least 70 percent of the volume of the foundation area (3).

5. Vehicle restraint system (2) according to claims 1 to 4, characterized in that the foundation area (3) of the concrete barrier elements (1) comprises several similarly embodied segments (10), and in that at least one recess (9) for receiving concrete of the foundation (4) is arranged in each segment (10).

6. Vehicle restraint system (2) according to any one of claims 1 to 5, characterized in that the concrete barrier elements (1) comprise a retention area (11) arranged above the foundation area (3) for vehicles colliding with the concrete barrier elements (1), and in that the retention area (11) has a retention profile.

7. Vehicle restraint system (2) according to one of claims 1 to 6, characterized in that the foundation area (3) comprises several spacers (12) to form the at least one recess (9).

8. Vehicle restraint system (2) according to one of claims 1 to 7, characterized in that a further recess (13) is arranged above the foundation area (3) inside the concrete barrier elements (3).

9. Vehicle restraint system (2) according to one of claims 1 to 8, characterized in that at least part of the trench (14) is filled with concrete over the entire cross-sectional width of the trench (14).

10. Vehicle restraint system (2) according to one of claims 1 to 9, characterized in that the trench (14) is at least 10 cm, particularly preferably at least 15 cm, wider than the foundation area (3) of at least one concrete barrier element (1) of the concrete barrier elements (1).

11. Vehicle restraint system (2) according to one of claims 1 to 10, characterized in that the concrete barrier elements (1) of the vehicle restraint system (2) are connected to each other solely by means of the foundation (4).

12. Method for constructing a vehicle restraint system (2) with concrete barrier elements (1), wherein the concrete barrier elements (1) comprise a foundation area (3) for embedding with concrete in a foundation (4), wherein the concrete barrier elements (1) have two end faces (5, 6) arranged opposite each other and two longitudinal sides (7, 8) arranged opposite each other (7, 8), wherein the foundation areas (3) of the concrete barrier elements (1) are arranged in a trench (14), wherein the trench (14) is at least 5 cm wider than the foundation area (3) of at least one concrete barrier element (1) of the concrete barrier elements (1), wherein the concrete barrier elements (1) are lined up with the end faces (5, 6) are arranged in a row, wherein the trench (14) is filled with concrete to form the foundation (4) in such a way that at least one recess (9) arranged in the trench (14) on at least one of the two longitudinal sides (7, 8) of the concrete barrier element (1) is filled with the concrete of the foundation (4).

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