EP4234815A1 - Système d'ancrage pour une structure de déviation de véhicule métallique et construction composée de ceux-ci - Google Patents

Système d'ancrage pour une structure de déviation de véhicule métallique et construction composée de ceux-ci Download PDF

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Publication number
EP4234815A1
EP4234815A1 EP23158260.2A EP23158260A EP4234815A1 EP 4234815 A1 EP4234815 A1 EP 4234815A1 EP 23158260 A EP23158260 A EP 23158260A EP 4234815 A1 EP4234815 A1 EP 4234815A1
Authority
EP
European Patent Office
Prior art keywords
indentations
base plate
anchoring system
anchoring
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23158260.2A
Other languages
German (de)
English (en)
Inventor
Annemie VAN EYCKEN-METDENANCXT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Van Eycken Metal Construction BV
Original Assignee
Van Eycken Metal Construction BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BE20225128A external-priority patent/BE1030292B1/nl
Priority claimed from BE20225127A external-priority patent/BE1030291B1/nl
Application filed by Van Eycken Metal Construction BV filed Critical Van Eycken Metal Construction BV
Publication of EP4234815A1 publication Critical patent/EP4234815A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0476—Foundations

Definitions

  • the current invention relates to an anchoring system for a metal vehicle deflection structure and such construction made consisting of a set of these anchoring systems.
  • a vehicle deflection structure also called a barrier
  • a barrier construction can be made of concrete and/or steel.
  • the current invention relates to a barrier structure made of steel. Steel also includes a collection of alloys suitable as construction material.
  • a steel barrier construction usually consists of an anchoring system that is suitable to be anchored on or within a surface.
  • the anchoring systems also include a set of poles suitable to support one or more rails, also called guide rails or crash barriers.
  • An absorber may also be present between the poles and the rails.
  • the steel barrier construction also simply called the structure, can also be installed to prevent vehicles entering the road in a sideways direction, turning and/or crossing a middle berm.
  • the barrier function also has the feature that in the event of a collision with the structure, the vehicle is guided back in the direction of traffic. Formulated otherwise, in the event of a collision, the vehicle will be held to the side of the traffic, preventing the vehicle from breaching the other side of the structure.
  • Another function of the structure is that in the event of a collision, the energy released is gradually absorbed until the vehicle comes to a stop. This can limit the possible consequences of an accident at speed.
  • the absorption of the collision energy can be realized by using, as already stated, absorbers placed between the anchoring system or the post on the one hand and the rails on the other. However, force will still be applied to the anchoring system itself. Because the rails are located at a height related to the driving surface for which the structure is installed to protect traffic, this force will cause a mechanical torque at the location where the system is anchored in the substrate.
  • One objective of the current invention is to provide a steel barrier construction that addresses one or more of the disadvantages described in the solutions of the state of the art of technology. More specifically, one objective of the current invention is to describe an anchoring system and associated structure with reduced force transmission and suitable to be installed on civil engineering structures where high speeds are permitted.
  • the objective stated above is realized by, according to a first aspect of the invention, providing an anchoring system for a metal vehicle deflection structure suitable to be installed on a civil engineering structure as defined by claim 1, in which the anchoring system comprises:
  • the anchoring system also has a support foot attached to the post on the second side to support the post under a pre-defined angle, whereby the support foot is configured in such as a way that when no force is exerted on the post there is no contact between the support foot and the substrate to which the anchoring system is attached.
  • the profile has reinforcement material at the height of the base plate on the first side in the direction of the indentations and/or transverse to this direction.
  • the first and second aspects can also be combined. When this is realized according to one embodiment, it also relates to the first aspect and second aspect of the invention where these embodiments are compatible with each other.
  • the anchoring system comprises a base plate with anchoring materials, such as bore holes suitable for steady or permanently anchoring with bolts onto the structure of a civil engineering structure.
  • anchoring materials such as bore holes suitable for steady or permanently anchoring with bolts onto the structure of a civil engineering structure.
  • Other anchoring materials are also possible, such as a clamp.
  • bore holes other anchoring materials can be provided to anchor the base plate to the structure and that the bores are not seen as limiting or essential for the invention.
  • a post is placed on the base plate and permanently attached, such as via welding.
  • the post has a profile, such as two bars or rods that are connected with additional welds.
  • the profile of the post can be a completely straight profile, but may also be curved, such as with one end opposite that of the connection of the profile to the base plate.
  • the profile can also have an angle, such as for attaching rails. So the profile can have variations as known by the professional.
  • the two indentations are between these bores or other means of anchorage, whereby material is located between the indentations.
  • the indentations may not completely extend over the entire breadth of the base plate, meaning that the base plate forms a whole.
  • the indentations also mean that material is removed. In other words, the indentations do not contain material, while the rest of the base plate is made of the same type of material, being steel. Material is present between the indentations.
  • the two indentations are configured in such a way that part of the material in between is used to permanently attach the profile of the post to the bottom of this.
  • the side of the indentations is located on the side where traffic is expected on the structure.
  • the material in between can fold, or more generally, plastically deform.
  • a base plate comprising an anchoring agent for attaching the support foot to the post, whereby the support foot is configured to support the post under a pre-defined angle on the side opposite the side of the indentations, whereby the support foot is configured so that when no force is exerted on the post, there is no contact between the support foot and a substrate on which the anchoring system is attached.
  • the support foot is attached to the post on the side away from the side on which normal traffic is expected on the civil engineering structure, and also set up floating at a certain angle. Only during an impact with the end of the support foot absorb part of the impact energy on the substrate on which the anchoring system is installed. This provides additional added deflective capacity when used in a vehicle barrier construction, without increasing the complexity of the structure.
  • Another advantage is that there is no influence on the low force transmission and a correct ratio between the working widths of a structure installed with such an anchoring system. In other words, low force transmission is retained and the limitation of the working width of the vehicle barrier construction on impact with a vehicle. An added value is the deflective capacity, and there is no excessive diversion of the structure during an impact.
  • the distance between the substrate and the underside of the support element at the end that is floating is around 5 mm, but can be located between 5 mm and 15 mm.
  • this support foot has a spring element at the end directed away from the indentations.
  • This spring element is, for example, a fold in the end of it.
  • reinforcement materials on the first side, so in the side of traffic and thus the side of the indentations.
  • These reinforcement materials can be located in the direction of the indentations and/or transverse to this direction.
  • the reinforcement materials in the direction of the indentations have oblique protrusions toward the edge on the side of the indentations, in other words, on the side of traffic.
  • These protrusions are permanently attached by their respective undersides to the base plate using a weld, for example.
  • the protrusions are made of the same material as the profile of the post and form a whole, preferably.
  • Steady or permanently attached means that there is a mechanical connection between the profile and the oblique protrusions with the base plate in such a way that a force transmission between the profile and the protrusions to the base plate can take place without this permanent connection or mechanical coupling being broken by the mechanical torque.
  • a permanent connection or mechanical coupling can be achieved through a suitable weld, for example.
  • the contact surface between the profile and the base plate is increased compared to the known state of the art of technology.
  • This provides for an improved and more efficient transfer of the mechanical torque on the base plate.
  • the mechanical torque created on the base plate can be transferred to a greater contact surface of the base plate, so that the plastic deformation can take place without the danger that the mechanical permanent connection between the post and the base plate prematurely breaking off, meaning, before the plastic deformation takes place.
  • Another advantage is that no heavier or larger profile needs to be used to increase the deflective capacity and/or contact surface of the structure. This results in a vehicle barrier structure consisting of a set of the previously described anchoring systems that are lighter in weight, requiring less material for fabrication and the installation on the civil engineering structure can be performed in an efficient manner. In addition, less effort is needed for the installation of this on the civil engineering structure.
  • Another advantage of this disclosed anchoring system is that during an impact, the force transmission onto the base plate is limited because part of it is absorbed by the support foot, and in particular on the bolts when anchored via bores.
  • the base plate will be plastically deformed in the middle between the indentations, but the bolts will remain in the civil engineering structure and not further damage it. It is just the anchoring system and the associated construction that will have to be replaced, as discussed further.
  • the plastic deformation ensures that there is no further danger in area surrounding the civil engineering structure as is the case with systems as known in the state of the art of technology.
  • the distance between in the indentations in the base plate is preferably greater than the width of the profile of the post.
  • the length of the indentations is preferably smaller than the depth of the profile and the length of the indentations is equal.
  • the profile is preferably placed symmetrically between the two indentations toward the edge or side of the indentations.
  • the post also has a set of one or more anchoring agents to attach one or more guard rails. These rails are positioned toward the side of traffic.
  • an anchoring agent can also contain an absorber located between the rails and the post. Through this, the absorber already absorbs part of the impact energy during a crash or impact before the force and the mechanical torque created through this is transferred as already described above.
  • a metal vehicle deflection construction is disclosed that is suitable to be installed on a civil engineering structure, the civil engineering structure being suitable for vehicle traffic, the construction comprising a set of anchoring systems according to the first aspect of the invention and one or more guard rails attached to the posts of the anchoring system, whereby, when attached, the longitudinal direction of the one or more rails is directed in a direction of traffic on the side of the traffic.
  • the one or more rails enable the force of an impact to be distributed over the set of anchoring systems.
  • the vehicle deflecting constructions have a high to very high deflective capacity, expressed in the performance levels such as H2 and H4b.
  • various working widths can be used, namely W2, W3 and W4, according to the series of standards NBN EN 1317 as valid as of 23 February 2022.
  • a construction can be designed with a suitable deflective capacity and adapted to the civil engineering structure. The latter means that the force transmission on the structure is reduced on impact and thus also the possible damage to it.
  • a kit of parts for the installation of a metal structure according to the third aspect, the kit comprising as set of anchoring systems according to the first aspect and one or more rails.
  • first, second, third and the like are used in the description and conclusions to differentiate between similar elements and not necessarily to describe a sequential or chronological sequence.
  • the terms are interchangeable under fitting circumstances and the embodiments of the invention can be applied in sequences other than those described or illustrated here.
  • the fabrics shown in the figures are anchoring systems s or elements thereof for use in a vehicle deflection structure.
  • Fig. 1 illustrates a vehicle deflection structure 101 according to one embodiment of the invention.
  • the vehicle deflection structure 101 comprises anchoring systems 102-104, guard rails 105-107 and absorbers 108-110.
  • Fig. 2 illustrates an anchoring system 103 according to a first embodiment and as used for the vehicle deflection structure 101 as illustrated in Fig. 1 .
  • the anchoring system 103 has a base plate 200, a post 201 with a profile consisting of two flat rods 221, and absorber 110 between the post 201 and the rails 105-107.
  • FIG. 3 which also illustrates the anchoring system 103 of Fig. 2 , but without the rails 105-107, where the base plate 200 also has two indentations 201-202.
  • the base plate 202 also has bores such as bore 203 to anchor the base plate 200 and thus the anchoring system 103 to a civil engineering structure.
  • the profile 221 also has two protrusions 204-205 at the height of the base plate extending from the profile 221 to the side of the indentations 201-202. These protrusions 204-205 are made of the same material as the profile 221 or form a whole. There is a weld plate 206 placed between the protrusions 204-205 that connect the protrusions 204-205. Other weld plates 207-208 can also be provided that connect the profiles 221.
  • the post 201 is placed with the underside between the two indentations 201-202, preferably symmetrical as illustrated in Fig. 4 which is an illustration of a cross section of the base plate of the anchoring system 103.
  • Fig. 7B illustrates a plastic deformation of the anchoring system 103, whereby the material 701 between the indentations 201-202 on which the post 201 is installed is deformed.
  • Fig. 7A illustrates the situation before an impact has taken place, so when no deformation has yet taken place.
  • FIG. 7A and Fig. 7B there is further illustration of the anchoring system 103 on a civil engineering structure that can be anchored using bolts 702-703 or even using four bolts via a chemical anchor for example. In addition, after an impact and deformation, the bolts 702-703 will still remain in the structure and thus not damage the structure.
  • the zone 710 illustrates a part of the civil engineering structure.
  • the post can also have a U-profile.
  • the anchoring system 600 illustrated in Fig. 6 has again a base plate 601, two indentations 602-603 and three bore holes 601 and 604-605 to attach the anchoring system 600 to a structure.
  • the anchoring system 600 also has a post with a U-profile 610.
  • the U-profile 610 has a closed side 611 and two lips 612-613 that form the open side 614 of the U-profile 610.
  • the close side 611 of the U-profile 610 is facing the indentations 602-603, thus toward the traffic side as illustrated in Fig. 5 .
  • the rails 501-506 are illustrated and supported by the anchoring system.
  • the U-profile is further permanently connected via the underside of the closed side 611 to the base plate 601 in the zone between the indentations 602-603. This is further illustrated by 630.
  • FIG. 7A and Fig. 7B the support foot 721 is illustrated and secured 724 to the post.
  • This support foot 721 as illustrated in Fig. 7A is floating on the side away from traffic, as illustrated by reference 720.
  • the support foot 721 can also contain a spring element 723, such as a folded end 723. After an impact, as illustrated in Fig. 7B , a part of the impact will be absorbed by the deformation of the support foot 730.
  • Both the anchoring system 103 and the anchoring system 600 have bevels 220 and 630 respectively to facilitate the plastic deformation.
  • Fig. 8A illustrates the vehicle deflection structure 101 as illustrated in Fig. 1 after an impact.
  • the anchoring system has been deformed, but remains attached to a part of the base plate 200 as illustrated in Fig. 8B with reference 801.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP23158260.2A 2022-02-23 2023-02-23 Système d'ancrage pour une structure de déviation de véhicule métallique et construction composée de ceux-ci Pending EP4234815A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20225128A BE1030292B1 (nl) 2022-02-23 2022-02-23 Verankeringssysteem met verlaagde krachtoverdracht voor een metalen voertuigkerende constructie en een constructie hiermee samengesteld
BE20225127A BE1030291B1 (nl) 2022-02-23 2022-02-23 Verankeringssysteem omvattende een steunvoet voor een metalen voertuigkerende constructie en een constructie hiermee samengesteld

Publications (1)

Publication Number Publication Date
EP4234815A1 true EP4234815A1 (fr) 2023-08-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23158260.2A Pending EP4234815A1 (fr) 2022-02-23 2023-02-23 Système d'ancrage pour une structure de déviation de véhicule métallique et construction composée de ceux-ci

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EP (1) EP4234815A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH485914A (de) * 1968-12-13 1970-02-15 Voest Ag Fahrzeugleitvorrichtung an Strassenrändern
US5664905A (en) * 1992-08-10 1997-09-09 Alcan Aluminium Uk Limited Fence
EP1520934A1 (fr) * 2003-09-30 2005-04-06 TOGE-Dübel A. Gerhard KG poteau pour barrière de sécurité
JP2012180646A (ja) * 2011-02-28 2012-09-20 Showa Mfg Co Ltd 防護柵支柱
WO2015042656A1 (fr) 2013-09-30 2015-04-02 Safe Direction Pty Ltd Ensemble montant
EP3486375A1 (fr) 2017-11-20 2019-05-22 Desami SPRL Système d'ancrage pour un poteau de glissière de sécurité

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH485914A (de) * 1968-12-13 1970-02-15 Voest Ag Fahrzeugleitvorrichtung an Strassenrändern
US5664905A (en) * 1992-08-10 1997-09-09 Alcan Aluminium Uk Limited Fence
EP1520934A1 (fr) * 2003-09-30 2005-04-06 TOGE-Dübel A. Gerhard KG poteau pour barrière de sécurité
JP2012180646A (ja) * 2011-02-28 2012-09-20 Showa Mfg Co Ltd 防護柵支柱
WO2015042656A1 (fr) 2013-09-30 2015-04-02 Safe Direction Pty Ltd Ensemble montant
EP3486375A1 (fr) 2017-11-20 2019-05-22 Desami SPRL Système d'ancrage pour un poteau de glissière de sécurité

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