WO2015124805A1 - Barrière de sécurité pour véhicules placée sur des voies de circulation, élément terminal et section de transition - Google Patents

Barrière de sécurité pour véhicules placée sur des voies de circulation, élément terminal et section de transition Download PDF

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Publication number
WO2015124805A1
WO2015124805A1 PCT/ES2014/070120 ES2014070120W WO2015124805A1 WO 2015124805 A1 WO2015124805 A1 WO 2015124805A1 ES 2014070120 W ES2014070120 W ES 2014070120W WO 2015124805 A1 WO2015124805 A1 WO 2015124805A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
longitudinal
section
safety barrier
elements
Prior art date
Application number
PCT/ES2014/070120
Other languages
English (en)
Spanish (es)
Inventor
Ignacio Fraile Arranz
Juan José MOSTAZA FERNÁNDEZ
Alberto Mansilla Gallo
Original Assignee
Fundacion Cidaut
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
Application filed by Fundacion Cidaut filed Critical Fundacion Cidaut
Priority to PCT/ES2014/070120 priority Critical patent/WO2015124805A1/fr
Publication of WO2015124805A1 publication Critical patent/WO2015124805A1/fr

Links

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
    • E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/143—Protecting devices located at the ends of barriers
    • 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
    • E01F15/025—Combinations of at least two of the barrier member types covered by E01F15/04 - E01F15/08, e.g. rolled steel section or plastic strip backed up by cable, safety kerb topped by rail barrier
    • 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
    • E01F15/0407—Metal rails
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means

Definitions

  • the present invention encompasses in the field of safety barriers for vehicles arranged on roads, both on the sides of the roads and in the middle as a separator of said roads.
  • Vehicles on the roads are susceptible to some situation in which they tend to leave the road with the consequent risk of an accident and serious damage to the occupants of the vehicle and other road users.
  • safety barriers are provided that contain the vehicle in a controlled manner when it impacts them, such as the commonly called containment systems .
  • barriers in their simplest form are a single longitudinal element extending along the track and subject to a support structure that serves as a support and fixation to the ground (such as some posts) arranged along said element longitudinal, which is fixed to the floor of the track.
  • connecting elements are arranged between the longitudinal element and the
  • the connectors are usually used to join said elements and therefore can significantly determine the resistance of the assembly and the way in which the vehicles that impact these barriers are redirected, influencing the severity of the impact for occupants.
  • the connecting elements consist of linear elements that are punctually joined at each end to each of the longitudinal elements, but with a reduced resistance to rotation with respect to these.
  • transverse to the barrier as in the longitudinal direction, which determine among other aspects, the reconduction of the vehicle towards the road, the length damaged during an impact and the transverse deformation of the barrier.
  • the present invention is a safety barrier for vehicles that covers the exposed need and solves the disadvantages of the prior art.
  • the object of the invention is a safety barrier for vehicles that when the impact of a vehicle occurs adequately distributes the stresses produced between the components that form the barrier and of said components with the vehicle, avoiding the transmission of the longitudinal components of said impact by limiting the relative rotation between components, so as not to reduce the rigidity of the barrier, which allows to adequately protect vehicles that impact on both sides of the barrier, since greater absorption occurs of energy and a better behavior in the interaction of the vehicle with the barrier of
  • the technical problem to be solved is a barrier in which the different components that form it are connected in such a way that there is no relative rotation between them as a result of an impact suffered from a vehicle on the barrier.
  • the present invention relates to a safety barrier for vehicles arranged on roads, which comprises two longitudinal elements extended along the road; at least one connector fixed to the longitudinal elements by means of fixing the connector; and a support structure that supports the barrier, in the usual way, either by support, such as the barriers that join a wall, such as in a recess of it, by insertion, as embedded in the concrete of said wall, or by known fixing means, such as screwing.
  • the fixing means of the connector are any known, usually a nut screw assembly or a weld.
  • said connector is a hollow section profile, open or closed, so that said section establishes an internal vacuum of the connector
  • the wall or walls that form each connector limit an interior space; for example, in the case of a section that is half circumference it is a wall that forms an interior space, in the same way two walls in L form a space
  • the connector comprises a curved section, said section being able to be connected with other curved and / or straight sections and thus forming a polyline, line with straight and curved sections, of any type, open or closed, being designated as which follows "open connector” when open and “closed connector” when closed; the connector being tangentially connected to each longitudinal element by means of the fixing means of the connector, said tangentiality being possible either between a straight longitudinal element and the curved or a straight section of the connector, with which they coincide at one point, between a straight longitudinal element and a straight section of
  • the connector with which they coincide in several points, or between a curved longitudinal element and the curved section or a straight one of the connector, with which they coincide in a point if when they are both curved the curvatures are opposite or in several points when they are coincident as it may be the case that the barrier changes direction in a curve; arranged the connector inside the space formed by the longitudinal elements, that is, each
  • connector is confined in the space formed between the longitudinal elements and no connector extends outside, protruding from said space.
  • the hollow section of the connector can be constant throughout its length, so that the
  • connection area either to another connector or to a longitudinal element.
  • connectors are arranged in the same plane, in parallel planes or in planes
  • the connectors can be joined together two by two by their curved section;
  • a possible configuration of this joint is that the connectors are aligned with each other, that is, at least their longitudinal axis is aligned.
  • the fixing of the barrier to the support structure can be carried out in the curved section of the connector, in one of the longitudinal elements, or in the two longitudinal elements; said support structure can be a post, a wall or combination of both.
  • the longitudinal elements can be arranged parallel to each other or at an angle to each other;
  • any of these configurations can present a change of direction, whereby the barrier adapts to curves and changes of direction of the road; in these cases, the connectors can be arranged aligned, but they can also be arranged not aligned with each other and thus placed just in the curve or change of direction of the longitudinal elements.
  • the exposed safety barrier can
  • the exposed barrier can be arranged by joining other existing safety barriers, thus forming a transitional section.
  • An advantage of the present invention is that the characteristics and geometry of the connectors allow the stresses originated on the longitudinal element of an element to be effectively transmitted.
  • Another advantage is that in locations where there is a possibility of impact of a vehicle on both sides, it achieves that the longitudinal element furthest from the roadway contributes better to the reconduction of the vehicle, and the barrier length that is affected during the impact is reduced , by distributing efforts more evenly and avoiding local overload of barrier elements.
  • Another advantage is that it allows to considerably increase the torsional resistance of the longitudinal elements of the barrier, with the consequent increase in stiffness of the assembly and a more continuous deformation thereof.
  • Another advantage is its high modularity, since due to the geometry of the connectors, it allows a wide variety of arrangements that allow modifying according to the need and progressively the
  • the connectors allow to increase the rigidity of the barrier in a timely manner in the areas where it is most needed rigidity, the connectors being distributed varying their horizontal and vertical position in the barrier, making it possible to reinforce the barrier at various heights with respect to the ground and vary its stiffness along it.
  • Another advantage is that it allows tensile stresses to be transmitted between parallel longitudinal elements, so that the longitudinal displacements of the system are limited by producing a better load distribution in the support structure.
  • an advantage of the open section is that it allows to maintain an adequate flexural rigidity with respect to the transverse direction thereof, in principle towards the inside of the curved section, and in turn better adapt to the geometry of the element
  • An advantage of the closed section is that it provides greater torsional stiffness along the connector itself against vertical and transverse loads, increasing the increase in longitudinal torsional stiffness of the barrier, by reducing the probability of local deformations forming in the connector itself.
  • the open connector allows to join longitudinal elements with changes of alignment and compensate for slight changes of alignment in assembly, in addition to provide a progressive change in stiffness between the longitudinal section and the proximity of the curved section of the connector, allowing some deformation of the connector itself, opening or closing the relative angle of the connector ends. This same effect of the change in stiffness along the connector is achieved by varying the section of the connector along its length, variable section.
  • the closed connector guarantees greater local stiffness of the union of the elements
  • the parallel connectors in parallel planes, allow, in addition to avoiding local deformations of the longitudinal elements at different vertical heights thereof, that the longitudinal element on which the vehicle impacts can be slightly raised, staying parallel to the longitudinal element furthest from the track, because it can behave as a mechanism that turns slightly with respect to the longitudinal direction of the barrier at the junction points between the connectors and the longitudinal elements.
  • the crossed connectors, in crossed planes make it possible to prevent a fence from rising parallel to the other, forcing it to twist with respect to the longitudinal direction of the barrier and therefore
  • the fixing of the support structure to one of the longitudinal elements allows reducing the
  • a support structure composed of a number of elements, such as posts, which allows to better compensate for longitudinal stresses and to provide elements of the support structure that are less aggressive individually or even yield during direct impact by the vehicle, allowing to reduce the severity for the occupants and to have a greater number of elements to better withstand the efforts transmitted during the impact.
  • Figures 1A and IB represent perspective views of a barrier with open and closed connector respectively, both of closed section, the connectors connected by their curved section to the support structure that is a post.
  • Figure 2 represents a perspective view of a barrier with two open connectors aligned of closed section and with the same orientation, the connectors connected by their curved section to the support structure that are posts.
  • Figure 3 is a view similar to that of Figure 2 in which the connectors are oriented in specular arrangement.
  • Figure 4 represents a perspective view of a barrier with two pairs of open connectors of closed section arranged facing each other, in crossed planes, joined one of the connectors of each pair by the curved section to the support structure that are posts.
  • Figure 5 represents a perspective view of a barrier with four pairs of open connectors of closed section contacting the curved section, each pair joined by the curved section of one of the connectors to the support structure, two pairs of connectors are arranged aligned and duplicate in parallel planes.
  • Figures 6A to 6D represent cross-sectional views of sections of the barrier with open connectors of closed section. In figure 6A you
  • Figure 7 represents a plan view of a barrier with non-parallel longitudinal elements, converging and open connectors equally oriented and connected by its curved section to the support structure that They are posts.
  • Figure 8 represents a plan view of a barrier with parallel longitudinal elements, closed connectors, joined the barrier by the connecting elements and a longitudinal element to the support structure that are posts.
  • Figure 9 represents a plan view of a barrier with parallel longitudinal elements, pairs of open connectors arranged specularly and joined by its curved section, joined by the longitudinal elements to the support structure that are posts.
  • Figure 10 represents a perspective view of a barrier similar to that of Figure 5, without duplicate pairs and in which the support structure is poles combined with a wall.
  • Figure 11 represents a perspective view of a barrier similar to that of Figure 10 in which the support structure is a wall.
  • Figure 12 represents a plan view of a barrier with angle change of direction.
  • Figure 13 represents a plan view of a barrier with direction change in curve.
  • Figures 14A to 14D represent different perspective views of open connector configurations.
  • the section is open and constant; in figure 14B the section is open and variable, different at the ends; in figure 14C the section is closed; in figure 14D the section narrows at the ends and in the central portion of the curved section to form a flat surface on which the fixing means of the connector are supported.
  • Figure 15 represents a perspective view of a closed connector of closed section.
  • Figure 16 represents a plan view of a terminal.
  • Figure 17 represents a plan view of a transition section.
  • the figures show a safety barrier for vehicles arranged on roads
  • said connector (2) is a hollow section profile, open or closed, so that said section establishes an internal vacuum of the connector (2), the connector (2) comprises a curved section, the connector (2 being connected) ) tangentially to each element longitudinal (1) by means of fixing the connector (3), and arranged the connector (2) inside the space formed by the longitudinal elements
  • the hollow section of the connector (2) can be constant throughout its length, as shown in the figures, except in 14B and 14D, in which the section is not constant but variable, in the case of Figure 14B because the ends of the open connector (2) shown they adapt to the longitudinal profile on which they are fixed, thus making a support of greater surface area, in the case of figure 14D the crushing at the ends and central part of the curved section provide a flat base on the which fully support the fixing means of the support (3), such as screws, so that the joint is more rigid.
  • the fixing means of the support (3) such as screws
  • connectors (2) with through holes in the middle part of the curved section, at the ends and in the middle part of the straight section when it is closed, figure 15, said holes being an illustrative example when the fixing means of the connector (3) they are screws; when, for example, said means are welding, not shown, said holes are not made in the connectors (2), presenting a
  • a barrier In a barrier, it can be arranged from a single connector (2), as in Figures 1A and IB, when the barrier section is short and sufficient for the intended requirements; however, as shown in the rest of the figures, several connectors are arranged
  • connectors (2) join together two by two along their curved section, thus forming a specular arrangement with each other, figures 5, 9 to 13, 16, 17.
  • connectors (2) are aligned with each other, so that they are all arranged in the same plane, as shown in all the figures, except in Figures 4, 6D in which the connectors (2) are arranged crossed.
  • the barrier can be fixed to the support structure (4) either by the curved section of the connector (2), figures 2 to 5, 7, 10, 11, 16, 17, by one of the longitudinal elements (1), figures 8 , 12, 13, or by the two longitudinal elements (1), figure 9.
  • said support structure (4) can be a post, figures 1 to 5, 7 to 9, 12 to 17, a wall (6 ), figure 11, or combination of both, figure 10.
  • the longitudinal elements (1) As for the relative arrangement between the longitudinal elements (1), it is usual that they are arranged parallel to each other, as in the figures, except in 7 and 16, in which the elements Longitudinal (1) are arranged at an angle to each other, which is useful for making a transition of a section of smaller separation between the elements
  • the longitudinal elements (1) can have a change of direction, at an angle, figure 12, or in a curve, figure 13.
  • Figure 12 shows that the connectors (2 ) arranged in the change of direction of the longitudinal elements (1) are not aligned with each other, but form a certain angle between them as one is in a section with one direction and the other in the other section with a different direction.
  • Figure 16 shows a terminal (5), that is to say the final part of a barrier, composed of a safety barrier according to any of the
  • Figure 17 shows a transition section (6) between existing barriers consisting of a safety barrier according to any of the exposed configurations.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

L'invention concerne une barrière de sécurité pour véhicules placée sur des voies de circulation, qui comprend: deux éléments longitudinaux s'étendant le long de la voie; au moins un raccord fixé aux éléments longitudinaux à l'aide de moyens de fixation du raccord; une structure de support qui supporte la barrière; ledit raccord étant un profilé de section creuse, ouverte ou fermée, de sorte que ladite section établit un vide intérieur du raccord, le raccord comprenant une section incurvée, le raccord étant relié tangentiellement à chaque élément longitudinal à l'aide des moyens de fixation du raccord, et le raccord étant disposé à l'intérieur de l'espace formé par les éléments longitudinaux. Lors du choc d'un véhicule, la barrière répartit de manière adéquate les forces produites entre les composants qui la constituent et celles desdits composants avec le véhicule, évitant la transmission des composantes longitudinales par la limitation de la rotation relative entre composants.
PCT/ES2014/070120 2014-02-19 2014-02-19 Barrière de sécurité pour véhicules placée sur des voies de circulation, élément terminal et section de transition WO2015124805A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2014/070120 WO2015124805A1 (fr) 2014-02-19 2014-02-19 Barrière de sécurité pour véhicules placée sur des voies de circulation, élément terminal et section de transition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2014/070120 WO2015124805A1 (fr) 2014-02-19 2014-02-19 Barrière de sécurité pour véhicules placée sur des voies de circulation, élément terminal et section de transition

Publications (1)

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WO2015124805A1 true WO2015124805A1 (fr) 2015-08-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435441A2 (fr) * 1989-11-20 1991-07-03 Energy Absorption Systems, Inc. Barrière de sécurité avec frein à friction
US6116805A (en) * 1997-05-05 2000-09-12 Gertz; David C. Crash attenuator with a row of compressible hoops
AU2006235939A1 (en) * 2006-11-10 2008-05-29 Samho C&T Pty Ltd Guardrail type road safety barrier
US20080181722A1 (en) * 2007-01-29 2008-07-31 Traffix Devices, Inc. Crash impact attenuator systems and methods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435441A2 (fr) * 1989-11-20 1991-07-03 Energy Absorption Systems, Inc. Barrière de sécurité avec frein à friction
US6116805A (en) * 1997-05-05 2000-09-12 Gertz; David C. Crash attenuator with a row of compressible hoops
AU2006235939A1 (en) * 2006-11-10 2008-05-29 Samho C&T Pty Ltd Guardrail type road safety barrier
US20080181722A1 (en) * 2007-01-29 2008-07-31 Traffix Devices, Inc. Crash impact attenuator systems and methods

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199127, Derwent World Patents Index; Class q41, AN 1991-194998 *
DATABASE WPI Week 200053, Derwent World Patents Index; Class p14, AN 2000-571578 *

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