EP0379424A2 - Strassenleitplanke - Google Patents

Strassenleitplanke Download PDF

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Publication number
EP0379424A2
EP0379424A2 EP90400121A EP90400121A EP0379424A2 EP 0379424 A2 EP0379424 A2 EP 0379424A2 EP 90400121 A EP90400121 A EP 90400121A EP 90400121 A EP90400121 A EP 90400121A EP 0379424 A2 EP0379424 A2 EP 0379424A2
Authority
EP
European Patent Office
Prior art keywords
profile
central groove
vertical plane
safety barrier
inertia
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.)
Withdrawn
Application number
EP90400121A
Other languages
English (en)
French (fr)
Other versions
EP0379424A3 (de
Inventor
Claude Alix Georges Pomero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Les Profiles Du Centre - Lpc Sa
Original Assignee
Les Profiles Du Centre - Lpc Sa
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 Les Profiles Du Centre - Lpc Sa filed Critical Les Profiles Du Centre - Lpc Sa
Publication of EP0379424A2 publication Critical patent/EP0379424A2/de
Publication of EP0379424A3 publication Critical patent/EP0379424A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
    • 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
    • E01F15/0423—Details of rails

Definitions

  • the present invention relates to road safety barriers: it is therefore applicable to traffic infrastructures.
  • a deformable safety barrier placed along the roads, consisting of metal profiles assembled by partial covering and bolting, and supported from place to place by vertical posts, the profile having a central groove surrounded by lateral ribs. located on either side of said central groove each having a vertex line located in the same vertical plane parallel to the vertical plane XX ′ tangent to the bottom of the groove, forming a relief on the side of the floor and each having an outer side folded in a direction opposite to the roadway and extended by a wing beyond said vertical plane XX ′ tangent to the bottom of the groove.
  • the invention relates more particularly to a slide incorporating a conventional metal profile, AFNOR standardized and called type A or B.
  • safety barriers are installed to prevent vehicles from leaving the lane during an incident or accident.
  • These safety barriers are metallic profiles which constitute a strip arranged vertically, having an average line substantially parallel to the raceway of the taxiway and are supported at regular distances by vertical posts disposed on the side of the slide where not find the traffic lane bordered by said slide.
  • the use of these safety barriers is common at the edge of motorway lanes, along the entire length of the lane, but also along the edge of ordinary roadways, either in areas where the exit from the road would be particularly dangerous, or, for busy roads, in the middle areas separating the two directions of traffic.
  • the supports in large numbers also lead to drawbacks for the holding of embankment slopes (punching), and create a potential danger for bikers who have slipped on the road, and may come into impact with these supports.
  • the technical advantage is to increase the radius of curvature of the profile following the same impact, which leads to a better distribution of the forces on the supports and to better guidance of the sinking vehicle.
  • the economic advantage is to be able to reduce the number of supports of the safety barrier for an equivalent depression in the event of an impact and therefore to reduce the cost of supplying and installing the rails significantly.
  • U.S. Patent 2,776,116 shows a slider as defined above wherein the flanges of the section diverging 45 o, thereby providing a low moment of inertia.
  • the wings tend to open strongly during possible shocks so that the moment of inertia decreases sharply at the moment of impact just when it would be necessary to have a high moment of inertia to maintain the rigidity of the slide.
  • modified profile A Another known profile is shown in German patent application 1,960,908 under the designation modified profile A.
  • the purpose of this modified profile A is to allow an increase in the thickness of the wall of the profile while keeping the modified profile roughly the same weight as that of a conventional profile A to which the object of the present invention refers. , also shown in this German patent application published 1 960 908. According to the known proposal, it is possible to increase the thickness of the wall of the profile while retaining the same initial weight by reducing the depth of the central groove by almost half while retaining the initial length of the outer flank of the lateral ribs.
  • the object of the present invention is to provide a safety barrier of the type mentioned, in which the profile has a moment of inertia greater than the moment of inertia of the profiles currently used and which moreover can be assembled with the current profiles without difficulty. .
  • the object is achieved according to the invention by the fact that the outer flank of the lateral ribs of the profile extends beyond said vertical plane tangent to the bottom of the central groove, over a distance between half and double the distance separating said vertical plane of the plane passing through the top lines of the lateral ribs.
  • this wing is of the same thickness and of the same material as the profile.
  • the two wings of the profile are divergent so as to allow the interlocking of the profiles for transport and for assembly.
  • the profile of the profile on the side of the road is preferably similar to that of one or the other of the two models of slideways commonly used. This allows the adaptation of these models of slides and the slide of the present invention without difficulties.
  • these wings have an orientation approaching the horizontal, so as to thereby maximize the moment of inertia of the slide relative to a vertical axis.
  • This orientation can be obtained by giving the profile the shape of a parabolic arc, on either side of the central groove. This shape also has the advantage of distributing as best as possible in the structure the forces received at the top of this parabola.
  • this wing may also be advantageous to fold the end of this wing in a fold parallel to the axis of the road; this fold will stiffen the profile and allow it to be less deformed under the impact of the vehicle.
  • the profile extends accordingly, on the side opposite to the traffic lane, 4 to 16 cm approximately with respect to this plane and preferably 6 to 8 cm.
  • the folded edge of the rib extended by a wing may have a shape approaching the horizontal, for example of parabolic shape, when one moves away from the taxiway. It can also include a fold of 2 to 5 cm approximately, ribbing the end of this wing. This bend may have an angle between 1 and 90 o relative to the horizontal, the bend forming an obtuse angle with the wing.
  • the metal profiles are fixed to each other by bolts, the bolt heads being on the side of the track. lation. It will be interesting that the locations of the bolts are compatible with those of the sections already in service, so that their reciprocal adaptation is convenient; it will still be necessary to place two bolts in the area of overlap of the profiles, to better secure the assembly.
  • the strong moment of inertia of the profile with respect to a vertical axis makes it possible to choose the thickness of the latter in a range going from 1.5 mm to 3 mm, with a preference for 2 mm of thickness, which is a interesting compromise between a high impact resistance and the unit mass of a profile element which is then about 60 kg.
  • the width of the outer borders can vary between 8 and 20 cm, depending on the impact resistance objective chosen.
  • the metal section of a safety barrier has been designated by 11.
  • the profiles 11 are secured by overlapping on an end zone 12 where we see the additional bolting holes 8.
  • This profile is supported by vertical posts 10.
  • the profile 11 has a W-shaped section and is designated by 1 the central groove, and by 2 the lateral ribs located on either side of the central groove 1.
  • each of these lateral ribs 2 extends beyond a vertical axis XX ′ substantially tangent to the bottom of the groove 1 by two wings 3b of approximately 7 cm.
  • the total width of the profile (L 1) is approximately 15 cm, but the width of the wing can be chosen between 3 and 12 cm approximately depending on the desired rigidity, depending on the applications envisaged.
  • the increase in the rigidity of the profile can also be obtained by creating a fold 5 with a width of 2 to 5 cm at the end of the wing 3b (FIG. 3).
  • This fold can be either practically in the extension of the border (1 o minimum compared to a horizontal plane), or on the contrary raised up to 90 o .
  • each parabola segment will develop on parts 4, 2, 3a and 3b, in continuity.
  • the top of the parabola will be the point of rib 2 closest to the traffic lane. Thanks to this shape, the shock on the ribs 2 is transmitted in the best conditions in the wings 3a and 3b and in the part 4, which rests on the groove 1.
  • the choice of a thickness of 2 mm allows the manufacture of a profile of 6.31 m long and weighing approximately 60 kg (for 50 kg in the case of a traditional profile having 4 m long and 3 mm thick).
  • This profile supported every 6 m, notably avoids the installation of a third of the supports, spacers and bolts compared to the traditional profile.
  • Its steel weight is also slightly lower than the linear meter (approximately 10 kg against approximately 11.5 kg).
  • the great length of the profile makes it possible to vary the possibilities of positioning the supports, according to the maximum displacement desired in the event of an impact: the minimum is of a support every 6 m, then a support every 3 m. It may be advantageous to also be able to implant a support every 2 m, which leads to providing a maximum of five recesses 6 in the groove of the profile: two at the ends 12, one in the middle, and two others sharing the profile in 3 parts of 2 m.
  • FIG. 5 shows a preferred embodiment of the invention.
  • Profile 11 is obtained by extending the outer flank 3a of a standard type A profile commonly used by a wing 3b which extends the outer flank 3a beyond the plane XX ′ tangent to the bottom of the central groove 1 over a distance comprised between half and twice the depth of the central groove 1.
  • the wings 3b extend diverging on the rear of the profile 11.
  • the angle of the wings 3b with the horizontal is approximately 11 o , which allows fitting the profiles 11 during transport from the factory to the site and covering the end 12 of each profile with the end 12 of the neighboring profile during installation.
  • the depth of the central groove 1 and the lateral ribs 2 is approximately 8 cm, its developed width is 47 cm, and its moment of inertia is 100 cm4 for a thickness of 3 mm.
  • the calculation shows that by extending the outer flanks 3a of the type A profile with wings 3b by 6 cm, we obtain a moment of inertia of 155 cm une with a profile thickness of 2 mm, and a moment of inertia of 232 cm4 with a profile thickness of 2.5 mm. If the wings 3b are 8 cm, the moment of inertia is 242 cm4 for a profile thickness of 2 mm and 363 cm4 for a profile thickness of 2.5 mm. It can be seen that the moments of inertia are considerably increased for a profile weight per linear meter that is greatly reduced with a profile thickness of 2 mm and substantially equal if the profile thickness is 2.5 mm.
  • the length of the extension of the wings 3b and the thickness of the profile 11 are calculated in such a way that the moment of inertia of the profile 11 is increased by at least 50% compared to the standard slides A or B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Road Signs Or Road Markings (AREA)
EP19900400121 1989-01-17 1990-01-17 Strassenleitplanke Withdrawn EP0379424A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900580A FR2641804B1 (fr) 1989-01-17 1989-01-17 Glissiere de securite routiere a ailes developpees
FR8900580 1989-01-17

Publications (2)

Publication Number Publication Date
EP0379424A2 true EP0379424A2 (de) 1990-07-25
EP0379424A3 EP0379424A3 (de) 1991-03-20

Family

ID=9377848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400121 Withdrawn EP0379424A3 (de) 1989-01-17 1990-01-17 Strassenleitplanke

Country Status (4)

Country Link
US (1) US5069576A (de)
EP (1) EP0379424A3 (de)
FR (1) FR2641804B1 (de)
PT (1) PT92870A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519851A1 (de) * 1991-06-20 1992-12-23 L'equipement Routier Montageteil zum Befestigung von Leitplanken an Pfosten zur Bildung einer Fahrbahnbegrenzung
US5547309A (en) * 1993-06-15 1996-08-20 The Texas A&M University System Thrie-beam terminal with breakaway post cable release
WO2002066746A1 (en) * 2001-01-02 2002-08-29 Ochoa Carlos M Guardrail beam with enhanced stability
US6554256B2 (en) 2001-04-25 2003-04-29 Icom Engineering, Inc. Highway guardrail end terminal assembly
US6558067B2 (en) 1999-02-16 2003-05-06 Icom Engineering, Inc. Guardrail beam with enhanced stability
CN105839564A (zh) * 2016-03-24 2016-08-10 袁静 一种山崖边缘护栏护条

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219241A (en) * 1991-06-04 1993-06-15 Picton Valentine L Crash barrier post
FR2677681B1 (fr) * 1991-06-17 1993-10-01 Scetauroute Dispositif de fixation d'equipements lateraux sur trou central des ouvrages d'art.
US5348416A (en) * 1992-04-07 1994-09-20 The Texas A&M University System Gandy dancer: end piece for crash cushion or rail end treatment
US5931448A (en) * 1995-12-28 1999-08-03 The Board Of Regents Of The University Of Nebraska Reverse twist turned-down terminal for road guardrail systems
US5860762A (en) * 1997-10-25 1999-01-19 Nelson; Charles B. Energy absorbing barrier system
US8517349B1 (en) * 2000-10-05 2013-08-27 The Texas A&M University System Guardrail terminals
FR2815051B1 (fr) 2000-10-06 2003-03-21 Henri Schalk Dispositif de pose de glissieres de securite notamment
US6530560B2 (en) * 2000-11-15 2003-03-11 K.E.S.S. Inc. Guardrail support, attachment, and positioning block
US6502805B2 (en) 2001-01-05 2003-01-07 David R. Lewis Sheet-metal highway guardrail system
WO2002066745A1 (en) 2001-02-19 2002-08-29 Thorgeir Jonsson Lateral load bearing structural cantilevered system such as highway guardrail and bridgerail systems
US20030094603A1 (en) * 2001-11-21 2003-05-22 Lerch James E. Customized barrier fences having variable post positions
WO2003048460A1 (en) * 2001-11-30 2003-06-12 The Texas A & M University System Steel yielding guardrail support post
US6932327B2 (en) 2002-01-30 2005-08-23 The Texas A&M University System Cable guardrail release system
US6948703B2 (en) 2002-01-30 2005-09-27 The Texas A&M University System Locking hook bolt and method for using same
WO2003085206A1 (fr) 2002-04-05 2003-10-16 Profil R Dispositif de pose de glissieres de securite
GB2397604B (en) * 2003-01-25 2007-09-05 Corus Uk Ltd Parapet
US20050035340A1 (en) * 2003-08-14 2005-02-17 Otte Donald R. Protective railing mounting arrangement
ITMI20031691A1 (it) * 2003-09-02 2005-03-03 Provincia Autonoma Di Trento Distanziatore per barriera di contenimento stradale o autostradale.
AT7685U1 (de) * 2004-02-16 2005-07-25 Voest Alpine Krems Finaltech Leiteinrichtung
US7478796B2 (en) * 2004-06-10 2009-01-20 Monroeville Industrial Moldings, Inc. Guardrail support members
US20080083914A1 (en) * 2004-07-19 2008-04-10 Ochoa Carlos M Posts and release mechanism for highway safety structures
US7530548B2 (en) * 2004-07-19 2009-05-12 Ochoa Carlos M Releasable highway safety structures
US20070063177A1 (en) * 2005-09-19 2007-03-22 Alberson Dean C Yielding post guardrail safety system
US20070063178A1 (en) * 2005-09-19 2007-03-22 Alberson Dean C Guardrail flange protector
US20070063179A1 (en) * 2005-09-19 2007-03-22 Alberson Dean C A weakened guardrail mounting connection
US20070102689A1 (en) * 2005-11-08 2007-05-10 Alberson Dean C Cable barrier guardrail system with steel yielding support posts
US20070228350A1 (en) * 2006-02-07 2007-10-04 Joseph Szuba Guardrail assembly and method of installing the guardrail assembly
US8500103B2 (en) * 2006-03-01 2013-08-06 The Texas A&M University System Yielding post guardrail safety system incorporating thrie beam guardrail elements
US20080224114A1 (en) * 2006-05-01 2008-09-18 Fu-Yao Cheng Protecting fence and its positioning member
HUP1200329A2 (en) 2011-12-15 2013-07-29 Gabor Tarany Road crash barrier structure with post installation method of the structure
US9200417B2 (en) 2012-11-27 2015-12-01 Energy Absorption Systems, Inc. Guardrail system with a releasable post
US20160186386A1 (en) * 2014-12-30 2016-06-30 Unique Tool & Manufacturing Protective Edge Member For A Laminated Support Mat
USD777942S1 (en) * 2015-02-03 2017-01-31 José Lopez Rivas Protective barrier
PL412418A1 (pl) * 2015-05-21 2016-12-05 Stalprodukt Spółka Akcyjna Element absorbujący drogowej bariery ochronnej oraz drogowa bariera ochronna zawierająca taki element absorbujący
DE102015115768A1 (de) * 2015-09-18 2017-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Leitplankensystem mit unterschiedlichen Intervallen
WO2019116059A1 (en) * 2017-12-11 2019-06-20 Arcelormittal Protection device and road barrier for motorcyclists
WO2020081683A1 (en) * 2018-10-16 2020-04-23 The Texas A&M University System Deflector bracket and cable anchor for guardrail terminal

Citations (8)

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US2047436A (en) * 1934-08-20 1936-07-14 Sheffield Steel Corp Highway guard
US2536760A (en) * 1947-01-15 1951-01-02 United Steel Fabricators Inc Road guard
CH378358A (it) * 1961-06-09 1964-06-15 Morteo Societa Per Azioni Riparo marginale stradale
US3417965A (en) * 1967-05-25 1968-12-24 James H. Gray Vehicle guard rail
DE1960908A1 (de) * 1969-12-04 1971-06-09 Oskar Bahnmaier Leucht-Leitplanken und federnde Montage von Leitplanken
DE2103535A1 (de) * 1968-09-14 1972-08-10 Neher Maschf A Leitplanke
DE2642475A1 (de) * 1975-10-14 1977-04-21 Voest Ag Leitplanke
GB2199605A (en) * 1987-01-10 1988-07-13 British Steel Corp Roadway crash barrier

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US2228652A (en) * 1939-04-26 1941-01-14 Karl F Dailey Highway guardrail
US2776116A (en) * 1953-10-29 1957-01-01 Acme Highway Prod Beam guard for highways and the like
CH402922A (de) * 1963-09-10 1965-11-30 Florian Dr Niggli Autostrassenkonstruktion mit Leitplanken
CH416713A (fr) * 1965-01-27 1966-07-15 Clotura S A Palissade routière de sécurité
AT279663B (de) * 1966-12-16 1970-03-10 Sina In Nat Autostradali Straßenleitplanke
BE807665A (fr) * 1973-11-22 1974-03-15 Aluminium Sidal S A Soc Ind De Dispositif de montage des lisses et entretoises de barrieres de securite pour routes sur un poteau de support
US4000882A (en) * 1975-08-28 1977-01-04 California Metal Enameling Company Contrasting marker panel for highway guardrails and the like
DE2720414C3 (de) * 1977-05-06 1979-10-18 Hans 8750 Aschaffenburg Urlberger Befestigungsvorrichtung für einen Leitplankenhohn
US4460161A (en) * 1983-03-02 1984-07-17 Grenga Joseph R Guard rail and reflective strip
CH663809A5 (de) * 1984-10-09 1988-01-15 Zemaltech Ag Sicherheitsueberzug fuer leitplanken.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2047436A (en) * 1934-08-20 1936-07-14 Sheffield Steel Corp Highway guard
US2536760A (en) * 1947-01-15 1951-01-02 United Steel Fabricators Inc Road guard
CH378358A (it) * 1961-06-09 1964-06-15 Morteo Societa Per Azioni Riparo marginale stradale
US3417965A (en) * 1967-05-25 1968-12-24 James H. Gray Vehicle guard rail
DE2103535A1 (de) * 1968-09-14 1972-08-10 Neher Maschf A Leitplanke
DE1960908A1 (de) * 1969-12-04 1971-06-09 Oskar Bahnmaier Leucht-Leitplanken und federnde Montage von Leitplanken
DE2642475A1 (de) * 1975-10-14 1977-04-21 Voest Ag Leitplanke
GB2199605A (en) * 1987-01-10 1988-07-13 British Steel Corp Roadway crash barrier

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519851A1 (de) * 1991-06-20 1992-12-23 L'equipement Routier Montageteil zum Befestigung von Leitplanken an Pfosten zur Bildung einer Fahrbahnbegrenzung
FR2678008A1 (fr) * 1991-06-20 1992-12-24 Routier Equip Sa Cale destinee a realiser le montage sur un poteau d'une glissiere de securite equipant une voie de circulation routiere.
US5547309A (en) * 1993-06-15 1996-08-20 The Texas A&M University System Thrie-beam terminal with breakaway post cable release
US6558067B2 (en) 1999-02-16 2003-05-06 Icom Engineering, Inc. Guardrail beam with enhanced stability
US6533249B2 (en) 1999-09-23 2003-03-18 Icom Engineering, Inc. Guardrail beam with improved edge region and method of manufacture
WO2002066746A1 (en) * 2001-01-02 2002-08-29 Ochoa Carlos M Guardrail beam with enhanced stability
AU2002255435B2 (en) * 2001-01-02 2007-07-19 Carlos M. Ochoa Guardrail beam with enhanced stability
US6554256B2 (en) 2001-04-25 2003-04-29 Icom Engineering, Inc. Highway guardrail end terminal assembly
CN105839564A (zh) * 2016-03-24 2016-08-10 袁静 一种山崖边缘护栏护条

Also Published As

Publication number Publication date
PT92870A (pt) 1990-07-31
EP0379424A3 (de) 1991-03-20
FR2641804B1 (fr) 1992-02-28
US5069576A (en) 1991-12-03
FR2641804A1 (fr) 1990-07-20

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