EP0309516A1 - Barriere - Google Patents

Barriere

Info

Publication number
EP0309516A1
EP0309516A1 EP19880902907 EP88902907A EP0309516A1 EP 0309516 A1 EP0309516 A1 EP 0309516A1 EP 19880902907 EP19880902907 EP 19880902907 EP 88902907 A EP88902907 A EP 88902907A EP 0309516 A1 EP0309516 A1 EP 0309516A1
Authority
EP
European Patent Office
Prior art keywords
block
barrier
bores
sides
blocks
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Withdrawn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
EP19880902907
Other languages
German (de)
English (en)
Inventor
John Costelloe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0309516A1 publication Critical patent/EP0309516A1/fr
Withdrawn legal-status Critical Current

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
    • E01F15/02—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
    • 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
    • E01F15/003—Individual devices arranged in spaced relationship, e.g. buffer bollards
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/083—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using concrete

Definitions

  • THE PRESENT INVENTION relates to a barrier and more particularly to a road traffic safety barrier.
  • a safety barrier located upon the stretch of ground known as the central reservation extending between the carriageways of a dual carriageway road.
  • These safety barriers are provided in order to separate the traffic moving in opposite directions on the two carriageways.
  • the barriers are intended, in the event of an accident, to prevent vehicles from one carriageway crossing the central reservation and colliding with oncoming vehicles moving in the opposite direction.
  • the present invention seeks to provide an improved road safety barrier.
  • a barrier adjacent the carriageway of a road comprising a plurality of free -standing, elongate blocks each block being of substantial mass, the blocks being arranged in a discontinuous manner.
  • said blocks are arranged so as to be parallel with each other but are not parallel to said carriageway.
  • said blocks are arranged such that a respective longitudinal axis extending through each said block forms an acute angle with the direction of travel of vehicles on said adjacent carriageway.
  • said blocks are arranged such that an elongate side of each said block is presented towards oncoming traffic travelling on the adjacent carriageway, the arrangement perferably being such that when viewed upon said elongate side in a direction substantially perpendicular to said side, said blocks appear to form a continuous barrier.
  • each said block defines a base, a plurality of sides and an upper surface, said base being of greater area than said upper surface, there being at least one pair of opposed sides which slope inwardly towards each joiner in a direction towards said upper surface.
  • each block two opposed elongate sides are defined by each block, said opposed elongate sides being consituted by said opposed sloping sides, which, when viewed, in a direction perpendicular to said sides, appear to form a continuous barrier.
  • each said block incorporates means for lifting the block, which may comprise one or more bores extending horizontally through said block, said bore or bores being suitable for receiving part of a lifting device.
  • each said block comprises one or more bores extending into said block from said upper surface, said bores being vertical bores, there being an equal number of said vertical bores and said horizontal bores, said vertical bores interconnecting with said horizontal bores.
  • the junctions between said sides of each block and also the junction between said sides and said upper surface may be rounded.
  • each said block defines two pairs of opposed sides which each slope inwardly towards each other in a direction towards said upper surface, each said block having the configuration of a truncated pyramid with a rectangular base.
  • Each said block may be formed from concrete as a concrete casting.
  • a block for use in forming part of a barrier said block defining a base, a plurality of sides and an upper surface, said base being of greater area than said upper surface, there being at least one pair of opposed sides which slope inwardly towards each other in a direction towards said upper surface.
  • FIGURE 1 is a plan view of a barrier according to the present invention located upon the central reservation of a dual carriageway road;
  • FIGURE 2 is a perspective view of a block forming part of the barrier of figure 1 ;
  • FIGURE 3 is a plan view of the block shown in figure 2;
  • FIGURE 4 is a transverse sectional view taken through the line IV-IV of figure 2.
  • figure 1 i llustrates schematical ly a barrier I located' upon a central reservation 2 between two carriageways 3, 4 of a dual carriageway rood.
  • Vehicles on the left-hand carriageway 3 in figure 1 are travelling in the direction indicated by the arrow 5, whi lst vehicles travelling on the right hand carriageway 4 are travelling in the direction as indicated by the arrow 6.
  • the barrier 1 comprises a plurality of elongate blocks 7 arranged in a discontinuous manner such that the blocks are parallel to one another but are not parallel to the adjacent carriageways or the direction of travel of the vehicles thereon.
  • the blocks 7 may be shrouded by bushes, shrubs or the like 8 in order to improve their appearance.
  • One block 7 is illustrated in perspective view in figure 2.
  • the block is formed as a concrete casting and has the configuration of a truncated pyramid upon a rectangular base 9.
  • the block 7 defines four inwardly and upwardly sloping sides 10, 1 1 , 12 and 13 and an upper surface 14 which is parallel to the rectangular base 9.
  • the upper surface 14 is also rectangular and is smaller in area than the base 9.
  • Each pair of opposed sides 10, 1 1 and 12, 13 slope inwardly towards each other in a direction towards the upper surface 14. It will be more readily appreciated from figure 3 that each side slopes by an equal amount between the base 9 and the upper surface 14.
  • the junctions between each of the sides 10, 1 1 , 12 and 13 are rounded to provide a smooth contour as are the junctions between the sides and the upper surface 14.
  • the rounding of all exposed edges of the block 7 serves to prevent the corners of the block 7 b eing chipped or parts thereof being knocked off in the event of a vehicle colliding with the block.
  • Each block 7 has three horizontal bores 15 extending therethrough between the two opposed, longer sides 10, 1 1.
  • the bores 15 are spaced at approximately regular intervals along the length of the block 7 at positions approximately mid-way between the base 9 and the upper surface 14.
  • the bores 15 serve as a means for lifting the block 7.
  • a tine or claw forming part of a lifting device may be passed through each of the bores 15 in order to raise the block by way of the lifting device.
  • each block 7 has three vertical bores 16 which extend into the block from the upper surface 14 thereof. The vertical bores 16 are in alignment along the length of the block 7 with the horizontal bores 15 and only extend down into the block as far as the horizontal bores 15, as can readi ly be seen from figure 4.
  • the vertical bores 16 may be used in combination with the horizontal bores 15 as means for lifting the block 7. For example a member provided with a loop at one end, such as a looped length of chain, may be dropped down each vertical bore 16 unti l eoch loop is posit ioned within the corresponding horizontal bore 15. A bar may then be passed through eoch horizontal bore 15 such that the bars pass through the loops. The block may then be lifted by way of the members provided with the loops. The insertion of the bars into the horizonlal bores 15 wi ll serve to expel any dirt which may have accumulated in the bores.
  • the vertical bores 16 can also be used to retain posts carrying signs or warnings for motorists.
  • the interconnection of each vertical bore 16 with a corresponding horizontal bore 15 prevents the vertical bore 16 from filling with water, such as rain which could lead to weakening of the block 7 if the waler were to freeze during particularly cold weather.
  • Each block 7 may be formed as a concrete casting using a fibre glass mould.
  • the blocks can be manufactured on site or very near to the site where they are to be used thus reducing transportation costs.
  • a concrete mixing plant is established to mix the concrete for the road, and thus there is a ready source of concrete to make the blocks described above in such a situation.
  • the blocks 7 are located in position using suitable lifting gear to form the barrier as illustrated and described in relation to figure I .
  • the installation of the blocks 7 upon the central reservation 2 requires a minimum of plant and for this reason the provision of a barrier 1 in accordance with the present invention on an existing reservation 2 may be effected by closing only a short section of the outside lane of each carriageway 3, 4 and the plant required may be removed to the nearest parking facilities at night.
  • the spacing between eoch of the blocks 7 may be varied, so that blocks are provided relatively close together near accident black spots and are spaced further apart on straight stretches of road where there is less likelihood of an accident occuring.
  • the blocks are designed to have a height approximately equal to the width of the base 9, the particular height of the blocks being chosen so that the blocks wi ll eliminate substantially all the glare produced by the heodlights of oncoming t raffi c travelling along the opposite carriageway.
  • the length of the blocks 7 may be selected as desired, although in a preferred embodiment the length of eoch block 7 is approximately three times the width of the block.
  • the blocks 7 are designed to be free standing on the ground of the central reservation and thus in the event of a vehicle colliding with one or more of the blocks 7 the blocks will be free to move slightly, thus having a cushioning effect to reduce the severity of the impact.
  • the blocks 7 are of substantial mass, i.e.
  • each block 7 has a mass of at least 8 tons, and are arranged so that a longitudinal axis 17 extending centrally through each block forms an acute angle with the directions 5, 6 in which the vehicles on the respective carriageways 3, 4 are travelling.
  • This arrangement ensures that the broader or elongate sides 10, 1 1 which extend parallel to the longitudinal axis 17 of each block 7 are presented towards oncoming traffic when the traffic is travelling on the road in accordance with the road traffic laws of the country. If a vehicle Is forced onto the central reservation 2 whilst travelling at high speed in a direction approximately as indicated by the arrow 5 or 6, the vehicle will collide with one of the broader sides 10, 1 1 of the block 7.
  • the block 7 will rotate in a clockwise direction, as viewed from above in Figure 1 , and may also cause slight sideways movement of the block.
  • the only resistance to movement of the block Is offered by the inertia of the block and any friction between the base 9 and the ground upon which the block rests.
  • the block 7 will absorb kinetic energy when a vehicle impacts one of the sides 10, 1 1 and will therefore act to retard the vehicle. If the vehicle is travelling particularly fast the blocks are designed and arranged such that the vehicle will collide with a first block 7 and 'nudge' this first block to one side and then collide with the next adjacent block, 'nudging' this next block to one side and so on until the vehicle is brought to rest.
  • This arrangement effects a gradual retardation of the vehicle with the impact being distributed over several blocks, each of which has a cushioning effect, rather than the vehicle being brought suddenly to rest by impacting a fixed barrier. If a block 7 is damaged as a result of a vehicle colliding with it then the block may be simply replaced or repaired.
  • each block 7 may extend from the upper surface 14 through to the base 9 and may be used for anchoring the blocks in position if this is found to be desirable.
  • a pair of channels may be provided adjacent the base 9 suitable for receiving the tines of a fork-lift truck or similar lifting device.
  • the dimensions and specific shape of the block 7 may also be varied if this is found to be desirable.
  • a barrier in accordance with the invention can be easily placed on a part of the central reservation which is to form a 'switchover' when it is necessary to have a contra flow.
  • the blocks of the barrier can easily be removed when a contra flow is established any may be easily replaced when the road reverts to normal working.

Landscapes

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

Abstract

Une barrière de sécurité (1) comprend une pluralité de blocs de béton allongés écartés (7) qui reposent librement sur l'espace réservé central (2), parallèlment les uns aux autres, leurs côtés allongés (10, 11) faisant face à la circulation arrivante et formant un angle aigu avec le sens de déplacement (5). Observés dans une direction perpendiculaire auxdits côtés, les blocs (7) semblent former une barrière continue. Chaque bloc (7) a la forme d'une pyramide tronquée avec une base rectangulaire (9).
EP19880902907 1987-04-09 1988-04-06 Barriere Withdrawn EP0309516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8708549 1987-04-09
GB878708549A GB8708549D0 (en) 1987-04-09 1987-04-09 Barrier

Publications (1)

Publication Number Publication Date
EP0309516A1 true EP0309516A1 (fr) 1989-04-05

Family

ID=10615566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880902907 Withdrawn EP0309516A1 (fr) 1987-04-09 1988-04-06 Barriere

Country Status (4)

Country Link
EP (1) EP0309516A1 (fr)
AU (1) AU1492788A (fr)
GB (1) GB8708549D0 (fr)
WO (1) WO1988008057A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670518B1 (fr) * 1990-12-13 1993-06-04 Allibert Sa Bloc separateur pour voies de circulation.
US5882140A (en) * 1997-01-30 1999-03-16 Yodock, Jr.; Leo J. Barrier device
GB2552498B (en) * 2016-07-25 2019-01-30 Gerrard Robert Surface mount security barrier
FR3062142B1 (fr) 2017-01-26 2020-10-23 Abdla Feghoul Bloc de beton, en particulier bloc anti-franchissement avec fonctionnalites supplementaires
FR3062405B1 (fr) * 2017-02-01 2019-06-21 Daniel Virot Bloc d'obstruction

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7106832U (de) * 1971-06-16 Mattsson G Verkehrsabsperrung aus Beton o dgl
US2135400A (en) * 1937-11-04 1938-11-01 Joseph O Johnson Highway guard
US2725958A (en) * 1953-03-16 1955-12-06 Flexicore Co Of Colorado Bumper block
DE1044134B (de) * 1956-01-28 1958-11-20 Werner Zapf Markierungsstein, insbesondere fuer Fahrbahnen
FR1237600A (fr) * 1958-10-17 1960-07-29 Bianca élément préfabriqué pour constructions routières, particulièrement pour autoroutes, permettant de réaliser des bordures élastiquement souples, anti-éblouissement, limitantes et indicatrices
GB1031111A (en) * 1962-04-06 1966-05-25 Aberdeen Concrete Company Ltd Improvements in or relating to wall-like structures
US3194128A (en) * 1962-10-05 1965-07-13 Lechner Hans Novel roadway
DE1534470A1 (de) * 1964-02-18 1969-04-17 Autostrade Conzessioni E Costr Leitplanke fuer Autostrassen
FR1430536A (fr) * 1964-03-12 1966-03-04 Barrière de protection pour routes, comportant des blocs de béton ou de pierre reliés élastiquement
FR1547707A (fr) * 1967-10-18 1968-11-29 Perfectionnements à la signalisation routière connue sous le nom de barres à secousses
FR2063288A5 (fr) * 1969-09-10 1971-07-09 Merlin Marcel
GB1434925A (en) * 1972-04-25 1976-05-12 Highway Components Ltd Guidance system
FR2314303A1 (fr) * 1975-06-12 1977-01-07 Moreau Joel Barriere de securite notamment pour autoroute et procede de fabrication de ladite barriere de securite
US4059362A (en) * 1976-11-24 1977-11-22 Smith Rodney I Concrete highway traffic barricade having integrally formed coupling
BE857093A (fr) * 1977-07-25 1977-11-14 Deschamps Louis V G Ecrans anti-eblouissant des phares d'autos fixes entre les deux bandes de roulement d'auto route
SE405022B (sv) * 1978-01-27 1978-11-13 Edebrand Karl Erik Anordning vid avgrensningsenheter
FR2436216A1 (fr) * 1978-09-18 1980-04-11 Le Ray Gildas Bordure de chaussee, notamment bordure de trottoir pour les agglomerations
FR2483483A1 (fr) * 1980-06-03 1981-12-04 Soproci Produits En Ciment Bordure de trottoir et de delimitation de chaussee
US4498803A (en) * 1983-04-18 1985-02-12 Quicksteel Engineering Pty. Ltd. Moveable lane barrier locking system
CA1214347A (fr) * 1983-12-02 1986-11-25 Marion L. Thompson Barricade a absorption d'energie
FR2584112B1 (fr) * 1985-07-01 1989-10-27 France Autoroutes Sud Dispositif de securite pour bordure de voie de circulation
DE8529466U1 (de) * 1985-10-17 1985-12-05 Stewing, Albert, 4270 Dorsten Fahrzeugabweiser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8808057A1 *

Also Published As

Publication number Publication date
WO1988008057A1 (fr) 1988-10-20
AU1492788A (en) 1988-11-04
GB8708549D0 (en) 1987-05-13

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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