EP0606305B1 - Strassenleitplanke mit wenigstens einem waagerechten holm aus holz - Google Patents

Strassenleitplanke mit wenigstens einem waagerechten holm aus holz Download PDF

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Publication number
EP0606305B1
EP0606305B1 EP92920409A EP92920409A EP0606305B1 EP 0606305 B1 EP0606305 B1 EP 0606305B1 EP 92920409 A EP92920409 A EP 92920409A EP 92920409 A EP92920409 A EP 92920409A EP 0606305 B1 EP0606305 B1 EP 0606305B1
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EP
European Patent Office
Prior art keywords
wooden
rail
crash barrier
metal
elements
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.)
Expired - Lifetime
Application number
EP92920409A
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English (en)
French (fr)
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EP0606305A1 (de
Inventor
Christian Gaillard
Thierry Papineschi
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SA Gaillard-Rondino
Original Assignee
GAILLARD RONDINO SA
SA Gaillard-Rondino
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Filing date
Publication date
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Publication of EP0606305A1 publication Critical patent/EP0606305A1/de
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Publication of EP0606305B1 publication Critical patent/EP0606305B1/de
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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 present invention relates to road safety barriers comprising at least one horizontal wooden beam.
  • the main application of the invention is the production of road safety barriers, but the assembly of the elements which constitute them could be used for other uses, in particular, whenever a wooden element risks being subjected to a longitudinal tensile force and / or accidental impact which could cause it to break.
  • crash barriers have one or more horizontal rails, connected to posts fixed to the ground, and must withstand without breaking significant forces in the event of a vehicle impact: various classes or levels of force have been defined by national authorities of many countries, such as in FRANCE by the Ministry of Equipment, Housing, Spatial Planning and Transport: the latter has established in particular three classes, the highest of which corresponds to a level 1 corresponding to use on motorways and highways.
  • the rails of the slides consist of elements of metal profiles assembled together, to ensure continuity, and making it possible to fairly easily reach the resistance imposed for the upper level above.
  • the problem posed is to be able to produce slides whose rails are made of wood and present this material on the maximum of their external surface, for aesthetic reasons, while being sufficiently resistant to withstand tensile forces, greater than those admissible by the wooden beam alone, without adding longitudinal metal elements which would withstand these efforts alone, and which beams would make it possible to obtain the highest level of approval in national standards.
  • a road safety barrier of the type comprising at least one horizontal rail, composed of wooden elements which are assembled end to end and supported by posts, which rail, as taught by the WHITE patent, is no longer covered on a part of its surface with a continuous metal strip; however in the present invention said strip consists of flat rectangular plates, elongated, of small section, and fixed against the surface of the rail opposite the axis of road traffic, and in the horizontal plane passing through the axis of the smooth; certain rectangular plates constituting the continuous strip, comprise at least one deformation zone, which can give them an extra length for each length of the strip corresponding to a wooden element, with which it is associated.
  • said rectangular plates comprising, at each of their ends, holes through which pass fixing bolts with the plate next link and the associated wood element, these holes are at least at one end of some of said plates, elongated.
  • said elongated holes are brake lights having the smallest opening diameter "r" towards the end of the rectangular plate, in which they are drilled.
  • the object of the present invention is therefore not to reach only said limit indicated above, but to be able to superimpose the resistances of wood and those of steel, which is normally impossible, because these materials have coefficients different elongation.
  • the present invention therefore avoids making a wooden slide of a size such that it should withstand the effort on its own, which would correspond to dimensions which are difficult to obtain, except at a very expensive cost and which, moreover, would be difficult to implement.
  • the present invention effectively makes it possible, surprisingly, to superimpose the resistances of wood and those of steel: indeed, initially as illustrated by real tests such as an example is described below. afterwards, everything happens as if the wooden beam alone supports the force it usually absorbs, up to a safety limit below its limit breaking, and with less deformation; then in a second step, while the wood continues to absorb this force compatible with this safety limit, the metal strip takes over by supporting the additional force applied to the entire slide, to its breaking point clean.
  • the wood being both the most visible part of the slide, and the first to withstand the forces by absorbing most of it, we must always consider that it is indeed wooden slides, whereas in the WHITE patent, for example cited above, it is the metal part which is predominant both in visual appearance and in resistance, and it is therefore no longer really possible to speak of wooden slides.
  • the combination of the deformation zones and the elongated fixing holes, especially if these are brake lights, in the metal parts of the strip located at the rear of the arm therefore makes it possible to obtain a curve of deformation, relative to the tensile force supported by it, continuous and, without punctual stiffening of too steep slope, which would risk in dynamics to cause a premature rupture: tests have shown, for example, that in l absence of deformation zones, with lights with parallel edges only, and at the start of the tensile stresses, the bolts slide in them until they stop, and that during all this sliding, the rear lamella does not work, alone the wood deforms and absorbs stresses; but when the bolts come into abutment with the lights after the deformation of their housing in the wood, there is a very sudden stiffening of the deformation curve, then due to the low elongation allowed by the rear strip, which adds its resistance to that of the wooden beam, but which in the event of an impact vehicle, presents a certain risk of rupture at the location of this
  • this metal strip associated with the wooden beam is fixed to the rear of the latter relative to the axis of road traffic: this on the one hand, makes it possible to keep the slide, its aesthetic presentation linked to that of wood, and on the other hand, gives its full effect of resistance indicated above, without risk of catching of the vehicles which would come to slide and lean on the slide during an impact for example; it is therefore not necessary to place this strip in grooves, even if these are useful and necessary, but for another purpose, only at the junctions of the elements of wood to keep them aligned, even in case of the support posts.
  • Figure 1 is a perspective view of an example of an exploded complete slide.
  • Figure 2 shows an example of a brake light.
  • FIG. 3 is a schematic top view of the slide according to FIG. 1.
  • Figure 4 is a schematic top view of another example of a slide.
  • FIG. 5 is an example of test curves for sliding slides.
  • FIGS. 1, 3 and 4 represent a section of road safety barriers according to the invention: this barrier comprises, in a known manner, posts 2 which preferably in the present invention are made of wood, supporting a horizontal rail 1, which is composed of 3 wooden elements assembled end to end.
  • This slide could include several horizontal rails of the same type.
  • the posts 2 and the wooden elements 3 are represented here in the form of wooden logs, which is a preferred embodiment, but could be of different section such as rectangular or square.
  • the heddle elements are wooden logs having a constant diameter, for example corresponding to dimensions that are relatively easy to produce and handle of 160, 180 or 200 mm and a length of between 1.5 and 4 m.
  • the posts 2 are positioned at the junction of each of the heald elements 3, but they could be at greater distances with junctions between elements 3 not supported by intermediate posts.
  • the present invention essentially relates to the existence in combination with the other slide elements of a continuous metal strip 4, consisting of rectangular plates 5, flat, elongated, of small sections, and fixed against the surface of the stringer 1 opposite the axis of road traffic 13, and in the plane horizontal passing through the axis of the arm.
  • All of these said rectangular plates 5, 6 constituting said continuous strip comprise at each of their ends connecting holes allowing them to be fixed together and through which pass at certain points fixing bolts 9 with the associated wooden element 3, in addition to their function of connection with the following plate.
  • some of these end holes 12, for example, those of the rectangular plates 5 running over most of the length of the wooden elements 3 are, at least at one end 20, of elongated shape, said light.
  • these slots 12 are even in the form of brake slots, having the smallest opening diameter "r" towards the end 20 of the rectangular plate 5, in which it is drilled and as shown in FIG. 2
  • this brake light preferably two in number, is 22 to 30 mm long, with a radius "R" of the largest end drilling of 8.25 mm corresponding in fact to fixing bolts 9 with a diameter of 16 mm, and at the other end, the drilling radius "r" of said holes 12 is from 5 to 7, 5 mm.
  • some of the rectangular plates 5 constituting said continuous rear strip 4 comprise at least one deformation zone 8 which can give it an excess length of the strip for each length corresponding to a wooden element 3 with which it is associated.
  • this deformation zone can consist of a series of folds of all shapes, made in the horizontal plane passing through the axis of the heald once put in place, and giving a possibility of extension from 4 to 20 mm for each element of heddle wood; this can be obtained for example with a fold in the form of curve forming a bridge with a radius "a" of 30 to 60 mm.
  • FIGS. 1 and 3 two deformation zones 8 have been shown for a single longitudinal element of rectangular plates 5, these being of length at most equal to that of the associated wooden element 3; in this embodiment, it is then necessary to have another metal connecting piece 6 forming a joint at the rear of the arm 1, relative to the axis of road traffic 13; this splint 6 overlaps and covers the ends of two adjacent wooden elements, and those of the two rectangular plates 5 associated with these wooden elements, to ensure their connection and their fixing by bolts passing through and enclosing both a wooden element 3 , a rectangular plate 5 and a connecting piece 6.
  • a second metal connecting piece 21 can be added, also forming a splint at the rear of the stringer 1, overlapping and covering the ends of the two adjacent wooden elements, as the other part forming a splice 6, these two said metal parts 6, 21 enclosing the ends of the two associated rectangular metal plates 5.
  • said safety barrier may have on its surface, corresponding to the side of the road traffic 13 another fishplate 7, in the horizontal plane overlapping two ends of wooden elements 3, and fixed to these by bolts, passing through them right through, and enclosing them between said splint 7 and the rectangular plates constituting the continuous strip at the rear of the heald, ie here in the figure 2 all the fishplates 6 and 21, and the plates 5.
  • the latter connecting rib 7 located on the front surface of the heddle 1 is preferably embedded in grooves 10 at the ends of the wooden elements 3, so as not to protrude from the front surface and thus allow a sliding of a vehicle by friction against said surface and also to keep said wooden elements aligned with one another, even after the supports 2 have broken: this is taught and described in a previous patent application from Etableaus GAILLARD, as mentioned above No. FR 2,592,074.
  • FIG 4 is a schematic top view of another embodiment of the slides according to the invention, but in which each wooden element 3 is associated with a rectangular metal plate 5 of greater length and projecting from said wooden element 3 at least at one end, which is deformed to cover the end of the rectangular metal plate 5 of the adjacent wooden element 3, which ends are then fixed to each other and to this wooden element by bolts passing through it from side to side.
  • said safety barriers may include, in a preferred embodiment, stop bars 22, placed, vertical in the median plane of the wooden elements 3 perpendicular to the longitudinal axis thereof and to those of the fixing bolts 9, and at a given distance from those -this towards the end of the wooden elements 3, as this is taught and described in patent application 2,623,829 filed on November 27, 1987 by Etablatoriums GAILLARD.
  • this is an example of a tensile test curve of different wooden beams, mounted according to the assembly shown in Figures 1 and 3, with a first curve 14 representing a deformation curve of an element in wood alone, 180 mm in diameter, and subjected to a longitudinal tensile force: a breaking point 17 is obtained for a tensile force of the order of 18 tonnes for a deformation of less than 40 mm.
  • the second curve 15 shown corresponds to the deformation undergone by a road safety barrier as shown in FIGS. 1 and 3, with a 180 mm wooden log as for curve 14, but associated with a longitudinal metal element 5 of 60 mm x 6 mm; this is connected to a next element by fishplates 6 and 21, enclosing it at the ends and having the same section and now two consecutive logs of wood end to end and aligned thanks to 16 mm fixing bolts.
  • One of the ends of each of the metal elements 5 is pierced with brake lights along the profile 12 as described in FIG. 2 and, these metal elements 5 comprise two deformation zones 8 also described above.
  • FIG. 5 above clearly shows that the test results correspond to a superposition and an addition of the resistance of the forces allowed on the one hand, by the wooden element, and on the other hand by the continuous metallic element. on its rear part, with a deformation curve on exertion, continuous, without breaking of bearings risking ruptures of the slide in dynamics.

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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)
  • Road Paving Structures (AREA)
  • Emergency Lowering Means (AREA)
  • Road Signs Or Road Markings (AREA)
  • Fencing (AREA)

Claims (10)

  1. Straßenleitplanken der Art, die mindestens einen waagerechten Holm (1) umfaßt, der aus Holzelementen (3) besteht, die aneinandergefügt und von Pfosten (2) getragen werden, welcher Holm (1) auf einem Teil seiner Oberfläche mit einer fortlaufenden Lamelle aus Metall bedeckt (4) ist, dadurch gekennzeichnet, daß die Lamelle (4) aus länglichen, glatten, rechteckigen Platten (5) mit kleinem Querschnitt besteht, die an der zur Achse des Straßenverkehrs (13) entgegengesetzten Oberfläche des Holms (1) und auf der Horizontalebene, die durch die Achse des Holms geht, befestigt sind, wobei bestimmte dieser rechteckigen Platten (5) mindestens einen verformten Bereich (8) aufweisen, der ihnen für die jeweilige Länge der Lamelle, die einem Holzelement (3) entspricht, mit dem sie verbunden ist, eine Überlänge geben kann.
  2. Straßenleitplanken nach Anspruch 1, dadurch gekennzeichnet, daß der verformte Bereich (8) aus einer Reihe von Krümmungen unterschiedlicher Formen der rechteckigen Platte besteht, die auf der Horizontalebene ausgeführt sind, die durch die Achse des Holms führt.
  3. Straßenleitplanken nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die rechteckigen Platten (5), welche die fortlaufende Lamelle (4) bilden, an jedem ihrer Enden Löcher aufweisen, durch welche Bolzen (9) zur Bestigung an einer folgenden Verbindungsplatte (6) und dem dazugehörigen Holzelement (3) geführt werden, welche Löcher zumindest an einem Ende bestimmter dieser Platten eine längliche Form (12) aufweisen.
  4. Straßenleitplanken nach Anspruch 3, dadurch gekennzeichnet, daß die Langlöcher (12) Bremslichter mit dem Durchmesser "r" mit der kleinsten Öffnung zum Ende der rechteckigen Platte (5) hin sind, in welcher sie vorgesehen sind.
  5. Straßenleitplanken nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jedes Holzelement (3) mit einer rechteckigen Metallplatte (5) größerer Länge verbunden ist, die über das Holzelement (3) mindestens an einer Seite hinaussteht, die verformt ist, um das Ende der rechteckigen Metallplatte (5) des angrenzenden Holzelements (3) zu überdecken, welche Enden dann aneinander und an diesem Holzelement mit Bolzen befestigt werden, die durch diese vollkommen hindurchführen.
  6. Straßenleitplanken nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jedes Element (3) mit einer rechteckigen Metallplatte (5) einer Länge verbunden ist, die höchstens gleich der des Holzelements (3) ist, und wobei ein Verbindungselement (6) aus Metall, das eine Verbindungsschiene darstellt, die bezüglich der Achse des Straßenverkehrs (13) hinter dem Holm angeordnet ist, die Enden zweier angrenzender Holzelemente der beiden mit diesen Holzelementen verbundenen rechteckigen Platten (5) überlappt und überdeckt und ihre Verbindung und Befestigung durch Bolzen sicherstellt, welche gleichzeitig durch ein Holzelement (3), eine rechteckige Platte (5) und ein Verbindungselement (6) führen und diese einspannen.
  7. Straßenleitplanken nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sie auf der Oberfläche des Holms (1), die der Seite des Straßenverkehrs (13) entspricht, eine Verbindungsschiene (7) umfaßt, die auf der Horizontalebene zwei Enden von Holzelementen (3) überlappt und an diesen mit Bolzen befestigt ist, die durch sie vollkommen hindurchführen und sie zwischen der Verbindungsschiene (7) und den rechteckigen Platten, welche die fortlaufende Lamelle hinter dem Holm bilden, einspannen.
  8. Straßenleitplanken nach einem der Ansprüche 6 und 7, dadurch gekennzeichnet, daß sie ein zweites Metallverbindungselement (21) aufweisen, das hinter dem Holm (1) eine Verbindungsschiene bildet, das die Enden der beiden angrenzenden Holzelemente wie das andere Element, das eine Verbindungsschiene (6) bildet, überlappt und überdeckt, wobei diese beiden Metallelemente (6, 21) die Enden der beiden verbundenen rechteckigen Metallplatten (5) fest einspannen.
  9. Straßenleitplanken nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Ende der rechteckigen Platten (5) und der Elemente, die Verbindungsschienen (6, 7) bilden, die direkt an den Holzelementen (3) anliegen, Klammern tragen, die in diese hineinreichen.
  10. Straßenleitplanken nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß sie Anschlagstangen (22) umfassen, die vertikal auf der Mittelebene der Holzelemente (3) quer zur Längsachse derselben und denen der Befestigungsbolzen (9) angeordnet sind, und zwar in einem gegebenen Abstand von diesen zum Ende der Holzelemente (3) hin.
EP92920409A 1991-09-30 1992-09-11 Strassenleitplanke mit wenigstens einem waagerechten holm aus holz Expired - Lifetime EP0606305B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9112282A FR2681888B1 (fr) 1991-09-30 1991-09-30 Glissieres de securite routiere comportant au moins une lisse horizontale en bois.
FR9112282 1991-09-30
PCT/FR1992/000855 WO1993007340A1 (fr) 1991-09-30 1992-09-11 Glissieres de securite routiere comportant au moins une lisse horizontale en bois

Publications (2)

Publication Number Publication Date
EP0606305A1 EP0606305A1 (de) 1994-07-20
EP0606305B1 true EP0606305B1 (de) 1996-11-27

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Application Number Title Priority Date Filing Date
EP92920409A Expired - Lifetime EP0606305B1 (de) 1991-09-30 1992-09-11 Strassenleitplanke mit wenigstens einem waagerechten holm aus holz

Country Status (8)

Country Link
US (1) US5462258A (de)
EP (1) EP0606305B1 (de)
AT (1) ATE145688T1 (de)
CA (1) CA2119269A1 (de)
DE (1) DE69215526D1 (de)
ES (1) ES2094933T3 (de)
FR (1) FR2681888B1 (de)
WO (1) WO1993007340A1 (de)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE10326414B3 (de) * 2003-06-12 2004-08-26 Spig Schutzplanken-Produktions-Gesellschaft Mbh & Co Kg Schutzplankenstrang
EP1486614A1 (de) 2003-06-12 2004-12-15 SPIG Schutzplanken-Produktions-Gesellschaft mbH & Co.KG Schutzplankenstrang

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FR2690701B1 (fr) * 1992-04-30 1996-09-20 Daniel Duyck Glissieres de securite routieres mixtes metal et bois ronds armes.
FR2703706B1 (fr) * 1993-04-07 1995-06-23 Cihb Glissiere ou barriere de securite routiere bois-metal.
US5957435A (en) * 1997-07-11 1999-09-28 Trn Business Trust Energy-absorbing guardrail end terminal and method
US6129342A (en) * 1997-07-11 2000-10-10 Trn Business Trust Guardrail end terminal for side or front impact and method
FR2796662B1 (fr) * 1999-07-22 2003-05-16 Maussion Jacques De Glissiere de securite pour route ou analogue comportant des lisses en bois renforcees par des fibres
US6561492B1 (en) * 2000-10-02 2003-05-13 David Allen Hubbell Wood clad guardrail assembly
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
DE502005004185D1 (de) * 2005-02-21 2008-07-03 Spig Schutzplanken Prod Gmbh Schutzplankenstrang
US8920065B2 (en) * 2008-10-30 2014-12-30 S. I. Storey Lumber Co., Inc. Vehicle barrier systems and assemblies
KR101356566B1 (ko) * 2013-01-17 2014-01-29 주식회사 케이씨이엔지니어링 충격에너지 흡수능력을 향상시킨 가요성 방호울타리

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FR2496153A1 (fr) * 1980-12-17 1982-06-18 Janier Jean Louis Barriere en bois
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FR2589176B1 (fr) * 1985-10-28 1987-12-18 Gaillard Rondino Cie Fse Ets Dispositif de construction et d'assemblage de glissieres ou barrieres de securite en bois
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326414B3 (de) * 2003-06-12 2004-08-26 Spig Schutzplanken-Produktions-Gesellschaft Mbh & Co Kg Schutzplankenstrang
EP1486615A1 (de) 2003-06-12 2004-12-15 SPIG Schutzplanken-Produktions-Gesellschaft mbH & Co.KG Schutzplankenstrang
EP1486614A1 (de) 2003-06-12 2004-12-15 SPIG Schutzplanken-Produktions-Gesellschaft mbH & Co.KG Schutzplankenstrang

Also Published As

Publication number Publication date
WO1993007340A1 (fr) 1993-04-15
CA2119269A1 (fr) 1993-04-15
EP0606305A1 (de) 1994-07-20
DE69215526D1 (de) 1997-01-09
ES2094933T3 (es) 1997-02-01
FR2681888A1 (fr) 1993-04-02
FR2681888B1 (fr) 1993-12-31
ATE145688T1 (de) 1996-12-15
US5462258A (en) 1995-10-31

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