EP0543749A1 - Highway guardrails - Google Patents
Highway guardrails Download PDFInfo
- Publication number
- EP0543749A1 EP0543749A1 EP92420424A EP92420424A EP0543749A1 EP 0543749 A1 EP0543749 A1 EP 0543749A1 EP 92420424 A EP92420424 A EP 92420424A EP 92420424 A EP92420424 A EP 92420424A EP 0543749 A1 EP0543749 A1 EP 0543749A1
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- EP
- European Patent Office
- Prior art keywords
- safety barrier
- barrier according
- flanges
- sleeve
- modular
- 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.)
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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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0453—Rails of materials other than metal or concrete, e.g. wood, plastics; Rails of different materials, e.g. rubber-faced metal profiles, concrete-filled steel tubes
Definitions
- the invention relates to the technical sector of equipment for road networks, and more generally for all equipment requiring the channeling of passageways of all uses.
- slides which can be made from wood or metallic material.
- the safety rails made of wood are in fact made up of logs positioned on duly spaced posts corresponding to the lengths of the logs.
- This type of slides if it is aesthetic, ecological and non-deformable, in the event of a weak force impact, nevertheless has significant disadvantages. More particularly, the risks of rapid breakage are signaled in the event of a major impact, the slides no longer playing their retaining role.
- metal slides which have tended to replace the previous ones.
- metal slides also have many drawbacks inherent in their production.
- Safety barriers are also known which are made from a very long metal cable, and in particular several hundred meters, positioned on posts arranged at regular intervals or not.
- This type of slides has serious drawbacks in the sense that they provide a "piano cord" function with an elasticity effect and therefore an extremely dangerous deflection for vehicles or other elements or products liable to come into brutal contact against it. .
- the aim sought after according to the invention was to design a new safety barrier which is capable of meeting all of the safety criteria relating to these conditions of use, while retaining a marked aesthetic and ecological appearance.
- Another aim was to design a new type of slide for easy maintenance and repair, even temporary, at very low maintenance cost conditions.
- Another sought-after goal was to design a safety barrier which perfectly fulfills a role of restraint during impacts, while limiting its deformability over a great length which can thus lead to reduced repair and maintenance costs.
- Another object sought after according to the invention was to design a safety barrier which is particularly capable of adapting very easily without deformation of its constituent elements to the profile of a road or the like.
- the road safety barrier is remarkable in that it is constituted by modular elements hinged together at their ends and fixed on support posts, each modular element comprising a sleeve having the shape of a log or have the appearance of this latter hollow internally to receive a central stiffening core forming an insert and having a capacity of elastic deformation sufficient for shock absorption, said core projecting at its ends from the sleeve and being fixed to profiled flanges arranged and centered at the end of the sleeve, said flanges being fitted out to allow the chaining of modular elements and their attachment to the posts.
- the central core is a metal cable.
- the central core is a prestressed metal cable.
- Figure 1 is a perspective view of a safety barrier according to the invention before mounting and positioning of one of its ends on a support forming a post.
- Figure 2 is a longitudinal sectional view of a safety barrier as a modular element after mounting of its constituent elements.
- Figure 3 is a partial sectional view along line B-B of Figure 4 showing the articulation of two consecutive safety barrier elements according to the invention.
- FIG. 4 is a side view in section along the line A-A in FIG. 3.
- Figure 5 is a partial view of a receiving post from one end of the crash barrier.
- Figure 6 is an alternative view showing the installation and fixing system of the end of a safety barrier.
- Figure 7 is a schematic view showing the positioning of several elements modular components of end-to-end safety barriers.
- Figure 8 is a schematic view showing a frontal impact on one of the slides.
- Figures 9 and 10 are schematic views showing the deformation and breakage of one of the crash barriers, then the outward movement of the slide concerned and adjacent slides relative to two support posts.
- Figure 11 is a schematic view showing the articulation of the slides together for their positioning adapted to the profile of a wheel.
- the safety barrier according to the invention is remarkable in that it is constituted by modular elements (E) hinged together at their ends and fixed on support posts (2) arranged at regular intervals or not.
- Each modular element comprises a sleeve (1) having the shape of a log which can be constituted by the log itself or have the appearance of the latter.
- Each sleeve or log of wood or other material is hollow internally to receive a central core (3) of stiffening forming an insert and having a capacity of elastic deformation sufficient to absorb shocks including strong violence without destruction.
- This core or insert (3) projects beyond its ends (3.1 and 3.2) of the sleeve or log, and is fixed to profiled flanges (4 - 5) arranged and centered at the end. of said log.
- profiled flanges made of any suitable material form a nozzle (4.1 - 5.1) nestable in the opposite end of the log and is extended on the other side with a profiled tab (4.2 - 5.2) capable of constituting a fastening piece and fixing on the corresponding post (2) for installing the slide element.
- the tab (4.2 - 5.2) is substantially offset relative to the median longitudinal plane of the log or sleeve in order to allow a superimposition of another tab associated with the flange of the modular element adjacent to the slide.
- Each tab thus has an oblong opening (4.3 - 5.3) allowing the introduction and the passage of a connecting and articulation axis (6) with spacer ring (7) and fixing screw (8).
- the mounting of two consecutive modular slide elements is carried out by positioning their respective tab in superposition to ensure the fitting of the connecting elements and thus the chaining of the modular elements between them.
- This implementation is particularly suitable because it in fact allows uniformity in the production of the flange elements (4 and 5) and therefore a simple different angular positioning as a function of their position.
- the flanges (4 - 5) can be arranged with one having a screed shape and the other having a single tab capable of engaging and fixing itself inside the screed shape mentioned above. using any suitable connection means such as the rod (6).
- the latter is fixed to a support base (9) of any material having on one of its faces a stud (9.1) capable of penetrating into a slot or additional profile (2.1) made on the post (2).
- the above-mentioned slot essentially serves for positioning and fixing the connecting element of the modular elements together.
- this slot is oriented in a plane parallel to that of the road for reasons which will be mentioned later. If necessary, provision may be made for fixing the support base by screws, studs or the like on the transverse face opposite the post.
- FIG. 5 there is illustrated a metal plate (10) positioned on the transverse face of the post and on which is likely to come to bear the aforementioned support base.
- FIG. 6 there is illustrated in a variant a support device for the articulation of two modular elements between them which can be fixed on a post.
- this device comprises a profile (11) coming to cap by its base (11.1) the end of the post and having an inverted U shape of which a wing (11.2) is in a plane parallel to the aforementioned base (11.1) in a horizontal plane.
- the latter receive guides (11.3 - 11.4) capable of receiving the means of articulation and connection (6) of the legs (4.2 - 5.2) of the associated modular elements. It is obvious that any other method of connection and attachment to a pole can be envisaged.
- the core (3) is made of an elastically deformable material but having a very high impact rigidity, so as to be unbreakable.
- This core can thus be constituted by a metal cable, by a cable obtained in composite material with glass fibers, of carbon or the like, giving it great resistance to impact.
- the metal cable can be prestressed according to techniques known to those skilled in the art, the cable being thus tensioned when fixing its ends to the retaining flanges (4 - 5).
- a retaining counter-force is obtained by the addition of the resistance and elasticity forces given by the multiplication of a length of the elastic core over two or three lengths of modular elements or more generating an elastic tensioning and retaining effect proportional to the lengths displaced, while perfectly mastering this effect.
- the safety barrier object of the invention constituted by several modular elements as described offers a multitude of advantages. It is aesthetic by the appearance given by the wooden sleeves or logs. It is ecological in the sense that it fits perfectly into the environment of the installation site.
- the slide is very solid and safer. It is also emphasized that this type of slide is easy to maintain and easy to repair without excessive cost of intervention. This slide is impassable even in the event of a violent frontal impact.
- the constituent modular elements are of variable length and their articulation between them allows their adaptation and positioning to all road profiles or the like.
- the core or insert such as cable for example can be greased while being protected from the weather.
- the core or insert such as cable for example can be greased while being protected from the weather.
- the length of the slide elements are of the order of two to three meters.
- the slide elements are installed after the posts have been installed.
- the modular elements are securely attached to each other but quite fragile on the pole heads.
- the column elements are repaired either by changing them or by fixing additional retaining elements.
- the modular element broken by its sleeve or log part can be replaced very easily.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
Description
L'invention se rattache au secteur technique de l'équipement des réseaux routiers, et de manière plus générale pour tous équipements nécessitant de canaliser des voies de passage de toutes utilisations.The invention relates to the technical sector of equipment for road networks, and more generally for all equipment requiring the channeling of passageways of all uses.
L'équipement des réseaux routiers exige la pose de glissières de sécurité qui doivent répondre à de nombreux critères techniques en égard de leurs conditions d'utilisation.The equipment of road networks requires the installation of safety barriers which must meet many technical criteria in view of their conditions of use.
On connaît principalement divers types de glissièrse qui peuvent être réalisées à partir de matériau bois ou de matériau métallique. Les glissières de sécurité réalisées en bois sont en fait consituées par des rondins positionnés sur des poteaux dûment espacés correspondant aux longueurs des rondins. Ce type de glissières, s'il est esthétique, écologique et indéformable, en cas de choc de faible force, présente néanmoins d'importants inconvénients. Plus particulièrement, on signale les risques de cassure rapide en cas de choc important, les glissières ne jouant plus alors leur rôle de retenue.There are mainly known various types of slides which can be made from wood or metallic material. The safety rails made of wood are in fact made up of logs positioned on duly spaced posts corresponding to the lengths of the logs. This type of slides, if it is aesthetic, ecological and non-deformable, in the event of a weak force impact, nevertheless has significant disadvantages. More particularly, the risks of rapid breakage are signaled in the event of a major impact, the slides no longer playing their retaining role.
On connaît également les glissières métalliques qui ont eu tendance à se substituer aux précédentes. Cependant, les glissières métalliques présentent également de nombreux inconvénients inhérents à leur réalisation.We also know the metal slides which have tended to replace the previous ones. However, metal slides also have many drawbacks inherent in their production.
Tout d'abord, elles sont dangereuses car elles présentent longitudinalement des bordures à angle vif formant couteau et les risques de blessure sont importants.First of all, they are dangerous because they have sharp, knife-edge edges longitudinally and the risk of injury is high.
Ce type de glissières métalliques est également soumis aux contraintes climatiques avec l'apparition de rouille. En cas de choc, elles sont déformables et tordues et deviennent irréparables. Très souvent, l'apparition d'un choc, en un point quelconque de la glissière métallique, provoque une déformation de celle-ci sur une très grande longueur de glissière, de sorte qu'il est alors nécessaire de remplacer celle-ci sur la totalité de la longueur abimée, entraînant des coûts importants d'entretien et changement par remplacement.This type of metal slides is also subject to climatic constraints with the appearance of rust. In the event of an impact, they are deformable and twisted and become irreparable. Very often, the appearance of a shock, at any point on the metal slide, causes its deformation over a very long length of slide, so that it is then necessary to replace it on the entire length damaged, resulting in significant maintenance costs and change by replacement.
Ce type de glissière n'est pas esthétique ni un produit écologique, de sorte que leur implantation s'effectue à l'encontre de toute considération de la préservation de l'environnement extérieur.This type of slide is neither aesthetic nor an ecological product, so that their installation is carried out against any consideration of the preservation of the external environment.
Un autre problème réside également dans le fait que les glissières métalliques ou en bois ne sont pas adaptées pour répondre à l'ensemble des critères à la fois technique, pour leur solidité, leur sécurité d'utilisation, leur durabilité et leur indéformabilité, et à des critères esthétiques.Another problem also resides in the fact that the metal or wooden slides are not adapted to meet all the criteria both technical, for their solidity, their safety of use, their durability and their non-deformability, and to aesthetic criteria.
Une autre difficulté de ces types de glissières réside en ce qu'elles sont difficilement adaptées pour suivre le pourtour des routes, de sorte qu'il est nécessaire bien souvent de les déformer au moins pour les glissières métalliques pour leur donner le profil recherché.Another difficulty with these types of slides lies in that they are difficult to adapt to follow the periphery of roads, so that it is very often necessary to deform them at least for the metal slides to give them the desired profile.
On connaît aussi des glissières de sécurité réalisées à partir d'un câble métallique de très grande longueur, et notamment de plusieurs centaines de mètres, positionné sur des poteaux disposées à intervalles réguliers ou non. Ce type de glissières présente de sérieux inconvénients dans le sens où elles assurent une fonction de "corde à piano" avec un effet d'élasticité et donc de renvoi extrêmement dangereux pour les véhicules ou autres éléments ou produits susceptibles de venir en contact brutal contre elle.Safety barriers are also known which are made from a very long metal cable, and in particular several hundred meters, positioned on posts arranged at regular intervals or not. This type of slides has serious drawbacks in the sense that they provide a "piano cord" function with an elasticity effect and therefore an extremely dangerous deflection for vehicles or other elements or products liable to come into brutal contact against it. .
Ainsi, le but recherché selon l'invention était de concevoir une nouvelle glissière de sécurité qui soit susceptible de répondre à l'ensemble des critères de sécurité relatifs à ces conditions d'utilisation, tout en conservant un aspect esthétique et écologique marqué.Thus, the aim sought after according to the invention was to design a new safety barrier which is capable of meeting all of the safety criteria relating to these conditions of use, while retaining a marked aesthetic and ecological appearance.
Un autre but était de concevoir un nouveau type de glissière d'un entretien et d'une réparation aisés même temporaires à des conditions de coût de maintenance très bas.Another aim was to design a new type of slide for easy maintenance and repair, even temporary, at very low maintenance cost conditions.
Un autre but recherché était de concevoir une glissière de sécurité qui assure parfaitement un rôle de retenue lors d'impacts, tout en limitant sa déformabilité sur une grande longueur pouvant entraîner ainsi des coûts de réparation et d'entretien réduits.Another sought-after goal was to design a safety barrier which perfectly fulfills a role of restraint during impacts, while limiting its deformability over a great length which can thus lead to reduced repair and maintenance costs.
Un autre but recherché selon l'invention était de concevoir une glissière de sécurité particulièrement apte à s'adapter très facilement sans déformation de ses éléments constitutifs au profil d'une route ou similaire.Another object sought after according to the invention was to design a safety barrier which is particularly capable of adapting very easily without deformation of its constituent elements to the profile of a road or the like.
Selon une première caractéristique, la glissière de sécurité routière est remarquable en ce qu'elle est constituée par des éléments modulaires articulés entre eux à leurs extrémités et fixés sur des poteaux supports, chaque élément modulaire comprenant un manchon ayant la forme d'un rondin ou présenter l'aspect de ce dernier creux intérieurement pour recevoir une âme centrale de rigidification formant insert et ayant une capacité de déformation élastique suffisante pour l'absorption des chocs, ladite âme débordant par ses extrémités du manchon et étant fixée à des flasques profilés disposés et centrés en bout du manchon, lesdits flasques étant aménagés pour permettre le chaînage des éléments modulaires et leur fixation sur les poteaux.According to a first characteristic, the road safety barrier is remarkable in that it is constituted by modular elements hinged together at their ends and fixed on support posts, each modular element comprising a sleeve having the shape of a log or have the appearance of this latter hollow internally to receive a central stiffening core forming an insert and having a capacity of elastic deformation sufficient for shock absorption, said core projecting at its ends from the sleeve and being fixed to profiled flanges arranged and centered at the end of the sleeve, said flanges being fitted out to allow the chaining of modular elements and their attachment to the posts.
Selon une autre caractéristique, l'âme centrale est un câble métallique.According to another characteristic, the central core is a metal cable.
Selon une autre caractéristique, l'âme centrale est un câble métallique précontraint.According to another characteristic, the central core is a prestressed metal cable.
Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description.These characteristics and others will emerge clearly from the following description.
Pour fixer l'objet de l'invention illustré non limitativement aux figures des dessins où :To fix the subject of the invention illustrated without limitation in the figures of the drawings where:
La figure 1 est une vue en perspective d'une glissière de sécurité selon l'invention avant montage et positionnement de l'une de ses extrémités sur un support formant poteau.Figure 1 is a perspective view of a safety barrier according to the invention before mounting and positioning of one of its ends on a support forming a post.
La figure 2 est une vue en coupe longitudinale d'une glissière de sécurité en tant qu'élément modulaire après montage de ses éléments constitutifs.Figure 2 is a longitudinal sectional view of a safety barrier as a modular element after mounting of its constituent elements.
La figure 3 est une vue partielle et en coupe selon la ligne B-B de la figure 4 montrant l'articulation de deux éléments de glissière de sécurité consécutifs selon l'invention.Figure 3 is a partial sectional view along line B-B of Figure 4 showing the articulation of two consecutive safety barrier elements according to the invention.
La figure 4 est une vue de côté et en coupe selon la ligne A-A de la figure 3.FIG. 4 is a side view in section along the line A-A in FIG. 3.
La figure 5 est une vue partielle d'un poteau récepteur de l'une des extrémités de la glissière de sécurité.Figure 5 is a partial view of a receiving post from one end of the crash barrier.
La figure 6 est une vue en variante montrant le système de pose et de fixation de l'extrémité d'une glissière de sécurité.Figure 6 is an alternative view showing the installation and fixing system of the end of a safety barrier.
La figure 7 est une vue à caractère schématique montrant le positionnement de plusieurs éléments modulaires constitutifs de glissières de sécurité mis bout à bout.Figure 7 is a schematic view showing the positioning of several elements modular components of end-to-end safety barriers.
La figure 8 est une vue à caractère schématique montrant un impact frontal sur l'une des glissières.Figure 8 is a schematic view showing a frontal impact on one of the slides.
Les figures 9 et 10 sont des vues à caractère schématique montrant la déformation et la cassure de l'une des glissières de sécurité, puis le déplacement vers l'extérieur de la glissière concernée et des glissières adjacentes par rapport à deux poteaux supports.Figures 9 and 10 are schematic views showing the deformation and breakage of one of the crash barriers, then the outward movement of the slide concerned and adjacent slides relative to two support posts.
La figure 11 est une vue à caractère schématique montrant l'articulation des glissières entre elles en vue de leur positionnement adapté au profil d'une roue.Figure 11 is a schematic view showing the articulation of the slides together for their positioning adapted to the profile of a wheel.
Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant d'une manière non limitative aux figures des dessins.In order to make the object of the invention more concrete, it is now described in a nonlimiting manner in the figures of the drawings.
La glissière de sécurité selon l'invention est remarquable en ce qu'elle est constituée par des éléments modulaires (E) articulés entre eux à leurs extrémités et fixés sur des poteaux supports (2) disposés à intervalles réguliers ou non. Chaque élément modulaire comprend un manchon (1) ayant la forme d'un rondin en pouvant être constitué par le rondin lui-même ou présenter l'aspect de ce dernier.The safety barrier according to the invention is remarkable in that it is constituted by modular elements (E) hinged together at their ends and fixed on support posts (2) arranged at regular intervals or not. Each modular element comprises a sleeve (1) having the shape of a log which can be constituted by the log itself or have the appearance of the latter.
Chaque manchon ou rondin en bois ou autre matériau est creux intérieurement pour recevoir une âme centrale (3) de rigidification formant insert et ayant une capacité de déformation élastique suffisante pour absorber des chocs y compris de forte violence sans destruction.Each sleeve or log of wood or other material is hollow internally to receive a central core (3) of stiffening forming an insert and having a capacity of elastic deformation sufficient to absorb shocks including strong violence without destruction.
Cette âme ou insert (3) déborde par ses extrémités (3.1 et 3.2) du manchon ou rondin, et est fixée à des flasques profilés (4 - 5) disposés et centrés en bout dudit rondin. Ces flasques réalisés en tout matériau approprié forment un embout (4.1 - 5.1) emboîtable dans l'extrémité en regard du rondin et se prolonge de l'autre côté avec une patte profilée (4.2 - 5.2) susceptible de constituer une pièce d'attache et de fixation sur le poteau correspondant (2) de pose de l'élément de glissière.This core or insert (3) projects beyond its ends (3.1 and 3.2) of the sleeve or log, and is fixed to profiled flanges (4 - 5) arranged and centered at the end. of said log. These flanges made of any suitable material form a nozzle (4.1 - 5.1) nestable in the opposite end of the log and is extended on the other side with a profiled tab (4.2 - 5.2) capable of constituting a fastening piece and fixing on the corresponding post (2) for installing the slide element.
Avantageusement, la patte (4.2 - 5.2) est sensiblement décalée par rapport au plan longitudinal médian du rondin ou manchon afin de permettre une superposition d'une autre patte associée au flasque de l'élément modulaire adjacent de la glissière. Chaque patte présente ainsi une ouverture oblongue (4.3 - 5.3) permettant l'introduction et le passage d'un axe de liaison et d'articulation (6) avec bague-entretoise (7) et vis de fixation (8).Advantageously, the tab (4.2 - 5.2) is substantially offset relative to the median longitudinal plane of the log or sleeve in order to allow a superimposition of another tab associated with the flange of the modular element adjacent to the slide. Each tab thus has an oblong opening (4.3 - 5.3) allowing the introduction and the passage of a connecting and articulation axis (6) with spacer ring (7) and fixing screw (8).
Ainsi, comme il apparaît figures 3 et 4 des dessins par exemple, le montage de deux éléments modulaires consécutifs de glissière s'effectue par un positionnement de leur patte respective en superposition pour assurer la pose des éléments de liaison et ainsi le chaînage des éléments modulaires entre eux. Cette mise en oeuvre est particulièrement appropriée car elle permet en fait une uniformité dans la réalisation des éléments de flasques (4 et 5) et donc un simple positionnement angulaire différent en fonction de leur position.Thus, as appears in FIGS. 3 and 4 of the drawings for example, the mounting of two consecutive modular slide elements is carried out by positioning their respective tab in superposition to ensure the fitting of the connecting elements and thus the chaining of the modular elements between them. This implementation is particularly suitable because it in fact allows uniformity in the production of the flange elements (4 and 5) and therefore a simple different angular positioning as a function of their position.
En variante, les flasques (4 - 5) peuvent être agencés avec l'un présentant une forme en chape et l'autre présentant une seule patte susceptible de s'engager et se fixer à l'intérieur de la forme en chape précitée à l'aide de tous moyens de liaison appropriés tels que la tige (6).As a variant, the flanges (4 - 5) can be arranged with one having a screed shape and the other having a single tab capable of engaging and fixing itself inside the screed shape mentioned above. using any suitable connection means such as the rod (6).
Cette dernière est fixée sur une embase support (9) en tout matériau présentant sur l'une de ses faces un tenon (9.1) susceptible de pénétrer dans une fente ou profil complémentaire (2.1) réalisé sur le poteau (2). La fente précitée sert essentiellement au positionnement et fixation de l'élément de liaison des éléments modulaires entre eux. De préférence, cette fente est orientée dans un plan parallèle à celui de la route pour des raisons qui seront évoquées par la suite. Il peut être prévu le cas échéant une fixation par vis, cloutage ou autre de l'embase support sur la face transversale en regard du poteau.The latter is fixed to a support base (9) of any material having on one of its faces a stud (9.1) capable of penetrating into a slot or additional profile (2.1) made on the post (2). The above-mentioned slot essentially serves for positioning and fixing the connecting element of the modular elements together. Preferably, this slot is oriented in a plane parallel to that of the road for reasons which will be mentioned later. If necessary, provision may be made for fixing the support base by screws, studs or the like on the transverse face opposite the post.
Selon la figure 5, on a illustré une plaque métallique (10) positionnée sur la face transversale du poteau et sur laquelle est susceptible de venir en appui l'embase support précitée.According to Figure 5, there is illustrated a metal plate (10) positioned on the transverse face of the post and on which is likely to come to bear the aforementioned support base.
Selon la figure 6, on a illustré en variante un dispositif support de l'articulation de deux éléments modulaires entre eux pouvant être fixés sur un poteau. A cet effet, ce dispositif comprend un profilé (11) venant coiffer par sa base (11.1) l'extrémité du poteau et présentant une forme en U renversé dont une aile (11.2) est dans un plan parallèle à la base (11.1) précitée dans un plan horizontal. Ces dernières reçoivent des guides (11.3 - 11.4) susceptibles de recevoir le moyen d'articulation et de liaison (6) des pattes (4.2 - 5.2) des éléments modulaires associés. Il est évident que tout autre mode de liaison et fixation sur poteau peut être envisagé.According to Figure 6, there is illustrated in a variant a support device for the articulation of two modular elements between them which can be fixed on a post. To this end, this device comprises a profile (11) coming to cap by its base (11.1) the end of the post and having an inverted U shape of which a wing (11.2) is in a plane parallel to the aforementioned base (11.1) in a horizontal plane. The latter receive guides (11.3 - 11.4) capable of receiving the means of articulation and connection (6) of the legs (4.2 - 5.2) of the associated modular elements. It is obvious that any other method of connection and attachment to a pole can be envisaged.
Selon une caractéristique importante de l'invention, l'âme (3) est réalisée en un matériau élastiquement déformable mais présentant une très grande rigidité aux chocs, de sorte à être incassable. Cette âme peut être ainsi constituée par un câble métallique, par un câble obtenu en matériau composite avec fibres de verre, de carbone ou similaires, lui conférant une très grande tenue à l'impact. Dans une mise en oeuvre particulière, le câble métallique peut être précontraint selon les techniques connues de l'homme de métier, le câble étant ainsi mis en tension lors de la fixation de ses extrémités sur les flasques de retenue (4 - 5).According to an important characteristic of the invention, the core (3) is made of an elastically deformable material but having a very high impact rigidity, so as to be unbreakable. This core can thus be constituted by a metal cable, by a cable obtained in composite material with glass fibers, of carbon or the like, giving it great resistance to impact. In a particular implementation, the metal cable can be prestressed according to techniques known to those skilled in the art, the cable being thus tensioned when fixing its ends to the retaining flanges (4 - 5).
Cette âme présente une élasticité suffisante pour jouer un rôle de retenue entre deux poteaux consécutifs dans le cas d'un choc de faible et moyenne importance, ainsi qu'il apparaît par exemple à la figure 8. Par contre, dans l'hypothèse de chocs plus importants (figures 9 et 10), l'impact sur l'un des rondins peut provoquer la cassure de celui-ci et, de par l'effet de poussée, l'arrachement des éléments de fixation par rapport aux poteaux supports (A - B). Ces derniers sont ainsi détériorés par l'arrachement par exemple d'une partie de leur extrémité (2.4). Ces poteaux peuvent néanmoins être réutilisés temporairement par l'adjonction d'une ferrure ou autre de renforcement délimitant la fente avec la partie non détériorée (2.3) pour le positionnement du talon d'une embase support.This core has sufficient elasticity to play a retaining role between two consecutive posts in the case of a shock of small and medium importance, as it appears for example in Figure 8. On the other hand, in the hypothesis of shocks more important (Figures 9 and 10), the impact on one of the logs can cause it to break and, due to the pushing effect, the tearing of the fastening elements relative to the support posts (A - B). The latter are thus deteriorated by the tearing, for example, of part of their end (2.4). These posts can nevertheless be reused temporarily by the addition of a fitting or other reinforcement delimiting the slot with the non-deteriorated part (2.3) for positioning the heel of a support base.
Dans ce cas d'impact, une contre-force de retenue est obtenue par l'adjonction des efforts de résistance et d'élasticité donnés par la multiplication d'une longueur de l'âme élastique sur deux ou trois longueurs d'éléments modulaires ou plus générant un effet élastique de mise en tension et de retenue proportionnel aux longueurs déplacées, tout en maîtrisant parfaitement cet effet.In this impact case, a retaining counter-force is obtained by the addition of the resistance and elasticity forces given by the multiplication of a length of the elastic core over two or three lengths of modular elements or more generating an elastic tensioning and retaining effect proportional to the lengths displaced, while perfectly mastering this effect.
Ainsi, la glissière de sécurité objet de l'invention constituée par plusieurs éléments modulaires tels que décrit offre une multitude d'avantages. Elle est esthétique par l'apparence donnée par les manchons ou rondins en bois. Elle est écologique dans le sens où elle s'intègre parfaitement à l'environnement du lieu de pose. La glissière est d'une très grande solidité et d'une meilleure sécurité. On souligne par ailleurs que ce type de glissière est d'un entretien aisé et d'une réparation facile à mettre en oeuvre sans coût excessif d'intervention. Cette glissière est infranchissable même en cas de choc frontal violent. Les éléments modulaires constitutifs sont de longueur variable et leur articulation entre eux permet leur adaptation et positionnement à tous profils de route ou similaires.Thus, the safety barrier object of the invention constituted by several modular elements as described offers a multitude of advantages. It is aesthetic by the appearance given by the wooden sleeves or logs. It is ecological in the sense that it fits perfectly into the environment of the installation site. The slide is very solid and safer. It is also emphasized that this type of slide is easy to maintain and easy to repair without excessive cost of intervention. This slide is impassable even in the event of a violent frontal impact. The constituent modular elements are of variable length and their articulation between them allows their adaptation and positioning to all road profiles or the like.
En outre, l'âme ou insert tel que câble par exemple pourra être graissé en étant protégé des intempéries. De par son positionnement à l'intérieur du rondin et par l'insertion éventuelle d'un gainage ou enrobage en matériau plastique ou autre.In addition, the core or insert such as cable for example can be greased while being protected from the weather. By its positioning inside the log and by the possible insertion of a sheathing or coating in plastic or other material.
Avantageusement, la longueur des éléments de glissière sont de l'ordre de deux à trois mètres.Advantageously, the length of the slide elements are of the order of two to three meters.
La pose des éléments de glissière s'effectue après implantation des poteaux. Les éléments modulaires sont attachés solidement entre eux mais de façon assez fragile sur les têtes de poteaux. La réparation des éléments de poteaux s'effectue soit par leur changement, soit par la fixation d'éléments de retenue complémentaires. L'élément modulaire cassé par sa partie manchon ou rondin peut être remplacé très facilement.The slide elements are installed after the posts have been installed. The modular elements are securely attached to each other but quite fragile on the pole heads. The column elements are repaired either by changing them or by fixing additional retaining elements. The modular element broken by its sleeve or log part can be replaced very easily.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9114598A FR2683840B1 (en) | 1991-11-19 | 1991-11-19 | ROAD SAFETY SLIDE. |
| FR9114598 | 1991-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0543749A1 true EP0543749A1 (en) | 1993-05-26 |
Family
ID=9419357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92420424A Withdrawn EP0543749A1 (en) | 1991-11-19 | 1992-11-18 | Highway guardrails |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0543749A1 (en) |
| FR (1) | FR2683840B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0743398A1 (en) * | 1995-05-18 | 1996-11-20 | SPIG SCHUTZPLANKEN-PRODUKTIONS-GESELLSCHAFT MBH & CO.KG | Guard rail |
| FR2834307A1 (en) | 2001-12-28 | 2003-07-04 | Solosar | Motor road safety barrier has rail with coaxial outer cylindrical shell and solid inner core |
| WO2006087560A2 (en) * | 2005-02-17 | 2006-08-24 | Robert Gerrard | Impact resisting post |
| EP1844197B1 (en) * | 2005-02-01 | 2011-03-09 | Outimex AG | Guiding element for the beginning and/or end area of a protective device, a protective device ptovided with said guid element and kit of parts for the protective device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2258533A (en) * | 1940-06-24 | 1941-10-07 | Alan E Brickman | Coupling for interconnecting flexible members |
| DE1658664A1 (en) * | 1968-02-24 | 1970-12-10 | Guenter Gubela | Guardrail for roads |
| EP0442830A1 (en) * | 1990-02-12 | 1991-08-21 | Compagnie Francaise Des Etablissements Gaillard | Crash barrier |
-
1991
- 1991-11-19 FR FR9114598A patent/FR2683840B1/en not_active Expired - Fee Related
-
1992
- 1992-11-18 EP EP92420424A patent/EP0543749A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2258533A (en) * | 1940-06-24 | 1941-10-07 | Alan E Brickman | Coupling for interconnecting flexible members |
| DE1658664A1 (en) * | 1968-02-24 | 1970-12-10 | Guenter Gubela | Guardrail for roads |
| EP0442830A1 (en) * | 1990-02-12 | 1991-08-21 | Compagnie Francaise Des Etablissements Gaillard | Crash barrier |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0743398A1 (en) * | 1995-05-18 | 1996-11-20 | SPIG SCHUTZPLANKEN-PRODUKTIONS-GESELLSCHAFT MBH & CO.KG | Guard rail |
| DE19517933A1 (en) * | 1995-05-18 | 1996-11-21 | Spig Schutzplanken Prod Gmbh | Guardrail strand |
| DE19517933C2 (en) * | 1995-05-18 | 2000-02-03 | Spig Schutzplanken Prod Gmbh | Guardrail strand |
| FR2834307A1 (en) | 2001-12-28 | 2003-07-04 | Solosar | Motor road safety barrier has rail with coaxial outer cylindrical shell and solid inner core |
| EP1844197B1 (en) * | 2005-02-01 | 2011-03-09 | Outimex AG | Guiding element for the beginning and/or end area of a protective device, a protective device ptovided with said guid element and kit of parts for the protective device |
| WO2006087560A2 (en) * | 2005-02-17 | 2006-08-24 | Robert Gerrard | Impact resisting post |
| WO2006087560A3 (en) * | 2005-02-17 | 2006-10-12 | Robert Gerrard | Impact resisting post |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2683840B1 (en) | 1994-02-18 |
| FR2683840A1 (en) | 1993-05-21 |
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