EP1106738A2 - Means for assuring the continuity of safety barriers for motorway guard-rails - Google Patents

Means for assuring the continuity of safety barriers for motorway guard-rails Download PDF

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Publication number
EP1106738A2
EP1106738A2 EP00420253A EP00420253A EP1106738A2 EP 1106738 A2 EP1106738 A2 EP 1106738A2 EP 00420253 A EP00420253 A EP 00420253A EP 00420253 A EP00420253 A EP 00420253A EP 1106738 A2 EP1106738 A2 EP 1106738A2
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EP
European Patent Office
Prior art keywords
elements
reservations
sections
concrete
reinforcements
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Withdrawn
Application number
EP00420253A
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German (de)
French (fr)
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EP1106738A3 (en
Inventor
Bernard Nakul
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NAKUL, BERNARD
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Individual
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Publication of EP1106738A2 publication Critical patent/EP1106738A2/en
Publication of EP1106738A3 publication Critical patent/EP1106738A3/en
Withdrawn legal-status Critical Current

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    • 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
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/088—Details of element connection
    • 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
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/083—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using concrete

Definitions

  • the present invention relates to a setting device in continuity of safety barrier elements for tracks road and motorway.
  • the barriers cast in place are non-deformable and almost impassable by heavy goods vehicles. However they are not reusable in case of modification of the way.
  • Prefabricated barriers currently used consist of elements assembled end to end by pieces metallic, sometimes with ground connections. For some reasons for installation, the play of these assemblies is always important. Ground connections by beaten plugs or massive anchors are often embarrassed or even dangerous to perform, because of the presence of underground networks or structures. During the impact of a vehicle, all the assemblies gets under tension and, in the impact zone, the barrier moves laterally by a value often incompatible with the site.
  • the present invention aims to remedy these drawbacks prefabricated barriers by providing a device of continuity of the elements which eliminates the games assembly and gives them behavior similar to barriers cast in place. It does not require anchoring in floor.
  • the device provides one or more horizontal frames, housed in reservations and connecting all the elements.
  • the elements come closely in contact each other through their ends.
  • the frames are tense and cancel the games between the elements.
  • the capacity barrier restraint can be adjusted to suit the number and tension of the reinforcements.
  • the barrier resists by combination of the following two effects.
  • the section resists thanks to the prestress brought by the reinforcement.
  • the barrier opposes lateral displacement thanks to the compression generated by the shock.
  • any lateral deformation in the center of a rectilinear beam implies a slight displacement of its ends along its axis.
  • the resistance provided by the friction of the elements on the ground is sufficient to block this movement.
  • a large part of the shock energy is then transformed into compression force in the barrier. Concrete withstands it particularly well. This effect is an important part of behavior of barriers in place.
  • the elements precast concrete currently in use are capable of mobilize these two effects.
  • Their weight is important, from about 600 kilograms for one meter of element.
  • Their width at the base about 60 centimeters, is sufficient to create the geometric effect of distance from the ends of the file.
  • the barrier is not adherent to the ground which allows it, during a violent shock, to deform slightly, at the difference of the barriers cast in place denounced for their too much rigidity.
  • the device which is the subject of the invention provides that the end surface of each element must be perfectly flat and perpendicular to the longitudinal axis to ensure a intimate contact of the elements with each other.
  • the frames are type of those used for anchors in the ground. They have the advantage of having a rustic thread on their entire length which allows site manipulation. They can be joined by sleeves with room for inside reservations and they admit in every way tension locking nuts.
  • the device is mounted without bonding product between the elements, or injection of reservations. It is therefore easily removable and all of its elements are reusable. However in some applications, for a line end very exposed to shocks or for an exposed curve on the concave side for example, it is sometimes necessary to bond the elements to the floor concrete and / or filling of vertical joints in curves to locally strengthen the resistance of the barrier.
  • Figure 1 is a perspective view of the device the invention.
  • Figure 2 is a longitudinal sectional elevation view of the device of FIG. 1.
  • Figure 3 is a partial view in longitudinal section of the tension blocking device.
  • Figure 4 is a partial view in longitudinal section a continuity tube between two elements.
  • Figure 5 is a partial cross-sectional view of the device of FIG. 4.
  • the the invention is applied to a barrier 1 having a profile classic says “Californian".
  • the device is characterized by two longitudinal reinforcements 2 connecting all the elements 1 and by perfectly flat and perpendicular end surfaces 3 to the longitudinal axis of each element 1. All elements 1 are in close contact with each other by the tensioning of the fittings.
  • Figure 2 shows the position of reservations 4 welcoming the reinforcements 2 and the presence of a conical draft 5 at each of their ends.
  • a conical projection of the formwork generally metallic, provides support to center a tube, usually in pvc, which constitutes reservation 4 and created by the same occasion the skin 5.
  • the figure also shows the cross section of two water passages 6 which are an arrangement common for this type of barrier.
  • Figure 3 illustrates the role of the conical draft 5 in end of reservations 4.
  • the juxtaposition of the two bodies 5 allows the housing a support piece 7 and a nut 8 for locking of the tension of the armature 2.
  • This support piece 7 has the shape of a truncated cone having an apex angle identical to that of the body 5 and is pierced in its axis to leave transition to frame 2.
  • the fittings 2 are threaded into the reservations 4.
  • the tensioning is done without special concrete element. Of even all or part of the barrier can be easily relaxed and be reused on another site.
  • Figure 4 illustrates the possibility of placing a small length of metal tube 9 inside the reservation 4 in line with the joint between two elements 1.
  • This tube 9 remains localized at this location thanks to a shoulder 10 prisoner in the bodies 5.
  • This tube 9 is useful in certain applications to provide or enhance shear strength at the joints and / or the mechanical continuity between elements 1. This is the case of an installation without reinforcement in a temporary site protection for example.
  • This device can be applied to prefabricated elements of any kind other than concrete, such as metal or plastics for example, or of a section other than that presented in the drawings. Thanks to its ability to be modulated in resistance, the device can be used for all types of safety barriers on motorways, roads, cycle paths, test or sports circuits, etc., and more generally in all areas requiring improvement in mechanical continuity of a line of juxtaposed elements.

Abstract

The safety barrier consists of a series of separate concrete sections (1), each having one or more through channels to receive threaded reinforcing rods (2). The end surface (3) of each section is flat and lies perpendicular to its lengthwise axis, and each channel has a conical recess in the section end face to receive a conical thrust element and a bolt on the reinforcing rod while still allowing two end surfaces to fit perfectly together. Instead of a thrust element and nut the recess in a section end face can also be used to receive a continuation tube between sections. The reinforcing rods are tensioned by the nuts to hold a number of concrete sections together, and can be removed to allow the sections to be moved to another site. Depending on requirements the sections can be made from materials other than concrete, e.g. metal or plastic.

Description

La présente invention concerne un dispositif de mise en continuité d'éléments de barrières de sécurité pour voies routières et autoroutières.The present invention relates to a setting device in continuity of safety barrier elements for tracks road and motorway.

Pour répondre aux normes de sécurité routières, les barrières de sécurité en béton ont toutes, sauf exceptions, le même profil dit «Californien», à quelques centimètres prés. Elles sont, soit coulées en place, soit constituées d'éléments préfabriqués.To meet road safety standards, concrete safety barriers all have, with exceptions, the same profile called "Californian", a few centimeters away. They are either cast in place or made up of elements prefabricated.

Les barrières coulées en place sont indéformables et quasiment infranchissables par les poids lourds. Cependant elles ne sont pas réutilisables en cas de modification de la voie.The barriers cast in place are non-deformable and almost impassable by heavy goods vehicles. However they are not reusable in case of modification of the way.

Les barrières préfabriquées actuellement utilisées sont constituées d'éléments assemblés bout à bout par des pièces métalliques, avec parfois des liaisons au sol. Pour des raisons de mise en place, le jeu de ces assemblages est toujours important. Les liaisons au sol par fiches battues ou massifs d'ancrages sont souvent gênées, voire dangereuses à exécuter, à cause de la présence de réseaux ou d'ouvrages enterrés. Lors du choc d'un véhicule l'ensemble des assemblages se met en tension et, dans la zone d'impact, la barrière se déplace latéralement d'une valeur souvent incompatible avec le site.Prefabricated barriers currently used consist of elements assembled end to end by pieces metallic, sometimes with ground connections. For some reasons for installation, the play of these assemblies is always important. Ground connections by beaten plugs or massive anchors are often embarrassed or even dangerous to perform, because of the presence of underground networks or structures. During the impact of a vehicle, all the assemblies gets under tension and, in the impact zone, the barrier moves laterally by a value often incompatible with the site.

La présente invention vise à remédier à ces inconvénients des barrières préfabriquées en fournissant un dispositif de mise en continuité des éléments qui élimine les jeux d'assemblage et leur confère un comportement similaire aux barrières coulées en place. Il ne nécessite pas d'ancrage dans le sol.The present invention aims to remedy these drawbacks prefabricated barriers by providing a device of continuity of the elements which eliminates the games assembly and gives them behavior similar to barriers cast in place. It does not require anchoring in floor.

A cet effet, le dispositif prévoit une ou plusieurs armatures horizontales, logées dans des réservations et reliant tous les éléments. Les éléments viennent étroitement en contact les uns des autres par leurs extrémités. Les armatures sont tendues et annulent les jeux entre les éléments. La capacité de retenue de la barrière peut être modulée en fonction du nombre et de la tension des armatures.To this end, the device provides one or more horizontal frames, housed in reservations and connecting all the elements. The elements come closely in contact each other through their ends. The frames are tense and cancel the games between the elements. The capacity barrier restraint can be adjusted to suit the number and tension of the reinforcements.

Lors d'un choc, la barrière résiste par combinaison des deux effets suivants. Localement sous le choc, la section résiste grâce à la précontrainte amenée par l'armature. D'autre part, sur l'ensemble de sa longueur, la barrière s'oppose au déplacement latéral grâce à la compression engendrée par le choc. En effet, toute déformation latérale au centre d'une poutre rectiligne implique un léger déplacement de ses extrémités suivant son axe. A partir d'une certaine longueur de barrière, la résistance apportée par le frottement des éléments sur le sol est suffisante pour bloquer ce déplacement. Une grande part de l'énergie du choc se transforme alors en effort de compression dans la barrière. Le béton y résiste particulièrement bien. Cet effet est un élément important du comportement des barrières coulées en place.During a shock, the barrier resists by combination of the following two effects. Locally in shock, the section resists thanks to the prestress brought by the reinforcement. Else hand, over its entire length, the barrier opposes lateral displacement thanks to the compression generated by the shock. Indeed, any lateral deformation in the center of a rectilinear beam implies a slight displacement of its ends along its axis. From a certain length of barrier, the resistance provided by the friction of the elements on the ground is sufficient to block this movement. A large part of the shock energy is then transformed into compression force in the barrier. Concrete withstands it particularly well. This effect is an important part of behavior of barriers in place.

Avec les caractéristiques du dispositif, les éléments en béton préfabriqués actuellement utilisés sont capables de mobiliser ces deux effets. Leur poids est important, de l'ordre de 600 kilogrammes pour un mètre d'élément. Leur largeur à la base, de 60 centimètres environ, est suffisante pour créer l'effet géométrique d'éloignement des extrémités de la file. La barrière n'est pas adhérente au sol ce qui lui permet, lors d'un choc violent, de se déformer légèrement, à la différence des barrières coulées en place dénoncées pour leur trop grande rigidité.With the characteristics of the device, the elements precast concrete currently in use are capable of mobilize these two effects. Their weight is important, from about 600 kilograms for one meter of element. Their width at the base, about 60 centimeters, is sufficient to create the geometric effect of distance from the ends of the file. The barrier is not adherent to the ground which allows it, during a violent shock, to deform slightly, at the difference of the barriers cast in place denounced for their too much rigidity.

Le dispositif objet de l'invention prévoit que la surface des abouts de chaque élément doit être parfaitement plane et perpendiculaire à l'axe longitudinal pour assurer un contact intime des éléments entre eux. Les armatures sont du type de celles utilisées pour les tirants d'ancrage dans le sol. Elles ont l'avantage d'avoir un filetage rustique sur toute leur longueur qui admet les manipulations de chantier. Elles peuvent être raboutées par des manchons ayant place à l'intérieur des réservations et elles admettent en tous points des écrous de blocage de leur tension. Le dispositif est monté sans produit de collage entre les éléments, ni d'injection des réservations. Il est donc facilement démontable et tous ses éléments sont réutilisables. Cependant dans certaines applications, pour une extrémité de file très exposée aux chocs ou pour une courbe exposée coté concave par exemple, il est parfois nécessaire de réaliser un collage au sol des éléments en béton et/ou un remplissage des joints verticaux dans les courbes pour renforcer localement la résistance de la barrière.The device which is the subject of the invention provides that the the end surface of each element must be perfectly flat and perpendicular to the longitudinal axis to ensure a intimate contact of the elements with each other. The frames are type of those used for anchors in the ground. They have the advantage of having a rustic thread on their entire length which allows site manipulation. They can be joined by sleeves with room for inside reservations and they admit in every way tension locking nuts. The device is mounted without bonding product between the elements, or injection of reservations. It is therefore easily removable and all of its elements are reusable. However in some applications, for a line end very exposed to shocks or for an exposed curve on the concave side for example, it is sometimes necessary to bond the elements to the floor concrete and / or filling of vertical joints in curves to locally strengthen the resistance of the barrier.

De toute façon, l'invention sera mieux comprise à l'aide de la description qui suit, en référence aux dessins schématiques annexés représentant un exemple du dispositif appliqué à une barrière en béton.In any case, the invention will be better understood at using the following description, with reference to the drawings attached diagrams representing an example of the device applied to a concrete barrier.

Figure 1 est une vue perspective du dispositif de l'invention.Figure 1 is a perspective view of the device the invention.

Figure 2 est une vue en coupe longitudinale en élévation du dispositif de la figure 1.Figure 2 is a longitudinal sectional elevation view of the device of FIG. 1.

Figure 3 est une vue partielle en coupe longitudinale du dispositif de blocage de la tension.Figure 3 is a partial view in longitudinal section of the tension blocking device.

Figure 4 est une vue partielle en coupe longitudinale d'un tube de continuité entre deux éléments.Figure 4 is a partial view in longitudinal section a continuity tube between two elements.

Figure 5 est une vue partielle en coupe transversale du dispositif de la figure 4.Figure 5 is a partial cross-sectional view of the device of FIG. 4.

Comme le montre la figure 1, le dispositif de l'invention est appliqué sur une barrière 1 ayant un profil classique dit «Californien». Le dispositif est caractérisé par deux armatures longitudinales 2 reliant tous les éléments 1 et par des surfaces d'about 3 parfaitement planes et perpendiculaires à l'axe longitudinal de chaque élément 1. Tous les éléments 1 sont en étroit contact les uns avec les autres par la mise en tension des armatures.As shown in Figure 1, the the invention is applied to a barrier 1 having a profile classic says "Californian". The device is characterized by two longitudinal reinforcements 2 connecting all the elements 1 and by perfectly flat and perpendicular end surfaces 3 to the longitudinal axis of each element 1. All elements 1 are in close contact with each other by the tensioning of the fittings.

La figure 2 montre la position des réservations 4 accueillant les armatures 2 et la présence d'une dépouille conique 5 à chacune de leurs extrémités. Lors du coulage de l'élément en béton 1, une saillie conique du coffrage, généralement métallique, offre un support pour centrer un tube, généralement en pvc, qui constitue la réservation 4 et crée par la même occasion la dépouille 5. La figure montre également la coupe transversale de deux passages d'eau 6 qui sont une disposition courante pour ce type de barrière.Figure 2 shows the position of reservations 4 welcoming the reinforcements 2 and the presence of a conical draft 5 at each of their ends. When pouring the concrete element 1, a conical projection of the formwork, generally metallic, provides support to center a tube, usually in pvc, which constitutes reservation 4 and created by the same occasion the skin 5. The figure also shows the cross section of two water passages 6 which are an arrangement common for this type of barrier.

La figure 3 illustre le rôle de la dépouille conique 5 en extrémité des réservations 4. Lors de la mise en place des éléments 1, la juxtaposition des deux dépouilles 5 permet le logement d'une pièce d'appui 7 et d'un écrou 8 pour le blocage de la tension de l'armature 2. Cette pièce d'appui 7 a la forme d'un tronc de cône ayant un angle au sommet identique à celui de la dépouille 5 et est percée en son axe pour laisser le passage à l'armature 2. Après la pose d'une série d'élément 1, les armatures 2 sont enfilées dans les réservations 4. La mise en tension se fait sans élément spécial en béton. De même, tout ou partie de la barrière peut être détendu aisément et être réutilisé sur un autre site.Figure 3 illustrates the role of the conical draft 5 in end of reservations 4. When setting up elements 1, the juxtaposition of the two bodies 5 allows the housing a support piece 7 and a nut 8 for locking of the tension of the armature 2. This support piece 7 has the shape of a truncated cone having an apex angle identical to that of the body 5 and is pierced in its axis to leave transition to frame 2. After the installation of a series of elements 1, the fittings 2 are threaded into the reservations 4. The tensioning is done without special concrete element. Of even all or part of the barrier can be easily relaxed and be reused on another site.

La figure 4 illustre la possibilité de placer une petite longueur de tube métallique 9 à l'intérieur de la réservation 4 au droit du joint entre deux éléments 1. Ce tube 9 reste localisé à cet emplacement grâce à un épaulement 10 prisonnier dans les dépouilles 5. Ce tube 9 est utile dans certaines applications pour assurer ou renforcer la résistance au cisaillement au droit des joints et/ou la continuité mécanique entre les éléments 1. C'est le cas d'une pose sans armature dans une protection temporaire de chantier par exemple.Figure 4 illustrates the possibility of placing a small length of metal tube 9 inside the reservation 4 in line with the joint between two elements 1. This tube 9 remains localized at this location thanks to a shoulder 10 prisoner in the bodies 5. This tube 9 is useful in certain applications to provide or enhance shear strength at the joints and / or the mechanical continuity between elements 1. This is the case of an installation without reinforcement in a temporary site protection for example.

Ce dispositif peut s'appliquer à des éléments préfabriqués de toute nature autre que le béton, comme le métal ou les plastiques par exemple, ou de section autre que celle présentée sur les dessins. Grâce à sa capacité d'être modulé en résistance, le dispositif peut être utilisé pour tous types de barrières de sécurité sur autoroutes, routes, pistes cyclables, circuits d'essais ou sportifs, etc, et plus généralement dans tous les domaines nécessitant une amélioration de la continuité mécanique d'une file d'éléments juxtaposés.This device can be applied to prefabricated elements of any kind other than concrete, such as metal or plastics for example, or of a section other than that presented in the drawings. Thanks to its ability to be modulated in resistance, the device can be used for all types of safety barriers on motorways, roads, cycle paths, test or sports circuits, etc., and more generally in all areas requiring improvement in mechanical continuity of a line of juxtaposed elements.

Claims (9)

Dispositif pour équiper des barrières de sécurité composées d'éléments préfabriqués en béton (1) pour voies routières et autoroutières, caractérisé en ce qu'ils comprennent sur leur section transversale, une ou plusieurs réservations longitudinales (4) aptes à recevoir des armatures (2).Device for fitting safety barriers composed of precast concrete elements (1) for roadways and motorways, characterized in that they include one or more reservations on their cross section longitudinal (4) able to receive reinforcements (2). Dispositif selon la revendication 1, caractérisé en ce que la surface des abouts (3) de chaque élément en béton (1) est parfaitement plane et perpendiculaire à l'axe longitudinal de l'élément.Device according to claim 1, characterized in that the surface of the ends (3) of each concrete element (1) is perfectly flat and perpendicular to the longitudinal axis of the element. Dispositif selon les revendications 1 et 2, caractérisé en ce que les réservations (4) présentent une dépouille conique (5) à chacune de leurs extrémités.Device according to claims 1 and 2, characterized in that the reservations (4) present a draft conical (5) at each of their ends. Dispositif selon les revendications 1 à 3, caractérisé en ce que le logement crée par la juxtaposition de deux dépouilles (5) admet une pièce d'appui (7) et un écrou (8) permettant le blocage de la tension de l'armature, tout en conservant le contact parfait entre les deux éléments (1).Device according to claims 1 to 3, characterized in that the housing created by the juxtaposition of two undercuts (5) admits a support piece (7) and a nut (8) allowing the tensioning of the reinforcement to be blocked, while keeping the perfect contact between the two elements (1). Dispositif selon la revendication 4, caractérisé en ce que la pièce d'appui (7) a la forme d'un tronc de cône ayant un angle au sommet identique à celui de la dépouille (5) et est percée en son axe pour laisser le passage à l'armature (2).Device according to claim 4, characterized in that the support piece (7) has the shape of a truncated cone having an apex angle identical to that of the draft (5) and is pierced in its axis to allow passage to the frame (2). Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les réservations (4) admettent un tube de continuité (9), libre autour de l'armature (2) et localisé au droit des joints entre éléments (1) par un épaulement (10) prisonnier dans le logement crée par les dépouilles (5).Device according to any one of the claims 1 to 4, characterized in that the reservations (4) admit a continuity tube (9), free around the frame (2) and located to the right of the joints between elements (1) by a shoulder (10) trapped in the housing created by the remains (5). Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les armatures (2) sont rigides et filetées sur toute leur longueur et peuvent être assemblées entre elles par des manchons.Device according to any one of the claims 1 to 5, characterized in that the reinforcements (2) are rigid and threaded over their entire length and can be assembled between them by sleeves. Dispositif selon la revendication 7, caractérisé en ce que les armatures (2) sont enfilées dans les réservations (4) et mises en tension après la pose d'une série d'éléments (1). Device according to claim 7, characterized in that the frames (2) are threaded in the reservations (4) and tensioned after the installation of a series of elements (1). Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les armatures peuvent être détendues aisément et permettre la réutilisation de la barrière sur un autre site.Device according to any one of the claims 1 to 8, characterized in that the reinforcements can be easily relaxed and allow reuse of the barrier on another site.
EP00420253A 1999-12-07 2000-12-07 Means for assuring the continuity of safety barriers for motorway guard-rails Withdrawn EP1106738A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915379 1999-12-07
FR9915379A FR2801913A1 (en) 1999-12-07 1999-12-07 DEVICE FOR CONTINUOUS CONSTRUCTION OF ROAD SAFETY BARRIER ELEMENTS

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EP1106738A2 true EP1106738A2 (en) 2001-06-13
EP1106738A3 EP1106738A3 (en) 2002-09-18

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EP1293610A2 (en) * 2001-09-15 2003-03-19 TSS Technische Sicherheits-Systeme GmbH Concrete barrier element
EP1722037B1 (en) * 2005-05-10 2009-08-05 TOGE-Dübel A. Gerhard KG Traffic guidance device
EP2905382A1 (en) * 2014-02-11 2015-08-12 TSS Technische Sicherheits-Systeme GmbH Concrete safety barrier and method for producing a concrete safety barrier
WO2020120820A1 (en) 2018-12-14 2020-06-18 Ingecid, Investigación Y Desarrollo De Proyectos S.L. Roadway safety barrier

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CN104988870A (en) * 2015-06-15 2015-10-21 张芳 Cement road barrier
AT518889B1 (en) * 2016-12-07 2018-02-15 Kirchdorfer Fertigteilholding Gmbh REINFORCING ELEMENT
CN110804970A (en) * 2019-11-14 2020-02-18 徐建立 Road traffic conveniently-laid hard shoulder

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PATENT ABSTRACTS OF JAPAN vol. 1995, no. 05, 30 juin 1995 (1995-06-30) -& JP 07 042124 A (ASAHI CONCRETE WORKS CO LTD;OTHERS: 01), 10 février 1995 (1995-02-10) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12, 3 janvier 2001 (2001-01-03) & JP 2000 240024 A (KOWA CONCRETE KK), 5 septembre 2000 (2000-09-05) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293610A2 (en) * 2001-09-15 2003-03-19 TSS Technische Sicherheits-Systeme GmbH Concrete barrier element
EP1293610A3 (en) * 2001-09-15 2004-01-28 TSS Technische Sicherheits-Systeme GmbH Concrete barrier element
EP1722037B1 (en) * 2005-05-10 2009-08-05 TOGE-Dübel A. Gerhard KG Traffic guidance device
EP2063026A3 (en) * 2005-05-10 2009-09-09 TOGE-Dübel A. Gerhard KG Traffic guidance device
EP2905382A1 (en) * 2014-02-11 2015-08-12 TSS Technische Sicherheits-Systeme GmbH Concrete safety barrier and method for producing a concrete safety barrier
WO2020120820A1 (en) 2018-12-14 2020-06-18 Ingecid, Investigación Y Desarrollo De Proyectos S.L. Roadway safety barrier
US11773549B2 (en) 2018-12-14 2023-10-03 Ingecid, Investigación Y Desarrollo De Proyectos S.L. Roadway safety barrier

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EP1106738A3 (en) 2002-09-18
FR2801913A1 (en) 2001-06-08

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