EP0571082A1 - Pfosten für Leitplanken - Google Patents

Pfosten für Leitplanken Download PDF

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Publication number
EP0571082A1
EP0571082A1 EP93303043A EP93303043A EP0571082A1 EP 0571082 A1 EP0571082 A1 EP 0571082A1 EP 93303043 A EP93303043 A EP 93303043A EP 93303043 A EP93303043 A EP 93303043A EP 0571082 A1 EP0571082 A1 EP 0571082A1
Authority
EP
European Patent Office
Prior art keywords
post
socket
rigid
assembly according
post assembly
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Withdrawn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
EP93303043A
Other languages
English (en)
French (fr)
Inventor
David Boast
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.)
Avon Polymer Products Ltd
Original Assignee
Avon Polymer Products Ltd
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 Avon Polymer Products Ltd filed Critical Avon Polymer Products Ltd
Publication of EP0571082A1 publication Critical patent/EP0571082A1/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Withdrawn legal-status Critical Current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
    • E01F15/0415—Metal rails with pivoting members
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement
    • E01F9/629—Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/638—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by connection of stud-and-socket type, e.g. spring-loaded

Definitions

  • This invention relates to post assemblies, and in particular assemblies having posts which are designed to withstand vehicle impacts.
  • the invention is concerned with the way in which a post is held in position and reacts to impacts.
  • Posts to form vehicle barriers are widespread, commonly with plural posts supporting and connected by a longitudinal strip barrier. Posts also have other uses in which they may be subject to vehicle impacts or similar heavy impacts, for example, supporting traffic signs.
  • an upright post is either set in concrete or bolted down to the ground by a welded-on base plate.
  • Such posts can be made sufficiently strong to withstand heavy impacts e.g. direct vehicle impacts at up to moderate speeds.
  • the aim of this invention is to provide a novel post assembly.
  • a post assembly and particularly an impact-absorbing barrier post assembly which has a rigid post installed with its root received in a rigid socket.
  • a deformable material is disposed in the socket between the rigid post and the rigid socket wall so that the post can be deflected relative to the socket, with deformation of the deformable material, in an impact-absorbing manner.
  • the deformable material is preferably a resilient material, and most preferably an elastomeric material such as rubber, so that it can absorb repeated impacts against the rigid post and return to the original position.
  • the socket desirably functions as a substantially rigid limit on the deflection of the post, such that after a certain degree of deformation of the deformable material the resistance becomes substantially rigid.
  • the energy of minor impacts may be absorbed in the deformable member.
  • damage to vehicles can thereby be significantly reduced.
  • the post itself is desirably essentially rigid e.g. a box, tube or I-section metal column, it has the capacity to take a heavy impact e.g. by abutment against one or more essentially rigid deflection-limiting portions of the socket itself, or some other adjacent deflection-limiting abutment, after a certain amount of deflection.
  • the assembly may be a "retro-fittable" assembly, with the socket having means for securing it on or in some permanent surface such as a floor or wall.
  • a base plate attachable to a surface e.g. by bolting, may be provided on the socket which may be in the form of a tube or part-tube projecting from the base plate. Projection above the base plate is preferred, avoiding the need to bore any post-hole in the permanent surface.
  • the invention may also be embodied by forming the socket directly as a post-hole in an existing or purpose-made wall or floor.
  • flooring panels e.g. for a car park, may be formed with recessed post-holes in which the rigid posts and deformable elements are fitted directly.
  • a floor panel having such post installations is an aspect of the invention.
  • the invention may be embodied by isolated posts which may be barrier posts and/or support posts e.g. for signs.
  • a barrier comprises plural posts supporting an elongate barrier element e.g. a barrier strip such as the well-known "Armco" type, extending between adjacent posts.
  • the deformable material is substantially contained within the socket. It may be in the form of one or more blocks adjacent or sandwiching the socketed end of the rigid post. Or, it may be in annular form extending right around the rigid post. In many applications impacts are anticipated from only one general primary direction, so the deflection characteristics need not be uniform in all directions.
  • the deformable material may be located selectively at positions where compression will occur for the general primary deflections. For example, material may be opposed in front of and behind the rigid post. It may be provided behind the post and above, and/or in front of the post and below, a pivot location for the typical deflection.
  • the rigid post may be retained and aligned in the socket substantially by its engagement with the deformable material e.g. by an interference fit of resilient material between the post end and socket wall.
  • means such as bolts or retaining projections may be provided to prevent the post from escape from the socket.
  • Such means may also provide a pivot point for deflection.
  • the assembly will project between 0.4 and 2.5m from the surface e.g. wall or floor.
  • the purpose of the deformable material is to increase the distance of movement and hence reduce the force with which the post absorbs impact energy.
  • an impact-exposed portion of the post - typically the top of the post - can be deflected at least 20mm, preferably at least 50mm and perhaps as much as 100mm or even 200mm or more (particularly for longer posts) by deformation of the deformable material alone, without permanently deforming the rigid components.
  • the post In the preferred application of the post as a vehicle barrier, the post needs to be able to absorb the energy of at least a typical low-speed impact in the course of this deflection.
  • the assembly components are chosen and constructed such that impact energy of at least 5kNm can be taken up by deformation - preferably resilient deformation - of the deformable material only.
  • the assembly as a whole - with or without permanent deformation - is preferably able to withstand at least a 15kNm lateral impact to give effective security where needed. Given the underlying concept, the achieving of such parameters is straightforward for the skilled person using readily-available materials. They are mentioned here to illustrate the properties generally required for vehicle impact resistance.
  • an upright vehicle barrier post comprises a flat base plate 101, a socket 102 integral with and extending and opening upwardly from the base plate 101, and an I-section beam 103 with its lower end in the socket 102.
  • Front and rear rubber blocks 104,105 received mostly or entirely within the socket 102, support the beam 103 vertically by gripping its front and rear flanges with an interference fit.
  • the socket 102 is a rectangular steel tube, welded to the upper surface of the rectangular steel base plate 101.
  • the base plate has two front bolt holes 111 and a rear bolt hole 112. Since the front bolts take the major pull when the post is hit from the front (the design direction), they are double and arranged well-spaced from the beam axis.
  • the beam 103 is supported against impact primarily by the rear wall of the socket 102, which extends e.g. between 25% and 50% of the beam length.
  • the socket rear wall is about 200mm high and the beam 103 from 500mm to 800mm high.
  • the front socket wall and rubber block 104 are made lower - about half the height.
  • the rubber blocks or resilient buffers 104,105 are separate, leaving central clearance for a transverse securing bolt 106 through socket and beam.
  • the interference grip of the rubber on the beam may be a tonne or more, however, so the bole may not be necessary.
  • the buffer blocks 104,105 hold the beam 103 in place and in its vertical alignment.
  • the back-to-front thickness of the rear block 105 is about 30mm in this embodiment; typically it might vary from 10 to 100mm depending on the overall size and required performance of the assembly.
  • Suitable material for the buffer blocks 104,105 is a routine choice for the skilled person, taking into account the required performance.
  • Natural rubber or EPDM may be used, for example. Since weather resistance is usually desirable, EPDM is preferred.
  • An attachment point for a longitudinal barrier strip such as an "Armco" strip, is provided on the front of the beam 103.
  • it involves simply a bolt hole 107 through the front flange of the beam 103, about two-thirds of the way up.
  • a column 10 of steel I-section (to BS4) is mounted in a circular hole 12 formed in a concrete floor panel 14.
  • the column 10 is supported by resilient members 16 manufactured of natural rubber or EPDM and interposed between the column 10 and the side walls 18 of the recess 12.
  • Fig. 4 shows in more detail the cross-section of the resilient members 16. It can be seen that in this embodiment they have a rectangular recess 20 which complements the flange of the steel column 10, and a number of flow recesses 22 disposed between abutment ribs 24 into which rubber may flow from abutment portions 24 when the column 10 is deflected so as to put that resilient member into compression.
  • Fig. 5 shows an alternative arrangement in which only one resilient member 16 is provided. Provided a suitable pivoting can be assured, it may not matter on which side of the column 10 the resilient member is provided.
  • Fig. 6 shows a feature which may be used on the resilient members, namely tolerance ribs 32.
  • These tolerance ribs 32 are substantially triangular in cross-section, and extend from the abutment ribs 24.
  • the tolerance ribs 32 deform to take up minor dimensional errors.
  • the precise matching of the recess size to the rubber becomes less critical.
  • Fig. 7 shows alternative means for preventing uprooting of the column 10 e.g. by vandals.
  • a flange 34 is provided on the column 10 slightly above the surface of the floor 14.
  • the flange 34 may be e.g. welded on.
  • a retaining member 36 is fixed to the floor 14 by bolts 38.
  • the retaining member has a second flange 40 which extends over the flange 34. The clearances between the flange 34 and the floor 14 and between the flange 34 and second flange 40 are sufficient to allow deflection of the column 10 in response to minor impacts.
  • a column 10 as described above, it can then be used to support e.g. a horizontal barrier 42, such as of the "Armco" type, or a road sign, and/or the column may be painted to act as a visible marker.
  • a horizontal barrier 42 such as of the "Armco" type, or a road sign, and/or the column may be painted to act as a visible marker.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP93303043A 1992-05-22 1993-04-20 Pfosten für Leitplanken Withdrawn EP0571082A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929211025A GB9211025D0 (en) 1992-05-22 1992-05-22 A post for a barrier or the like
GB9211025 1992-05-22

Publications (1)

Publication Number Publication Date
EP0571082A1 true EP0571082A1 (de) 1993-11-24

Family

ID=10715951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93303043A Withdrawn EP0571082A1 (de) 1992-05-22 1993-04-20 Pfosten für Leitplanken

Country Status (2)

Country Link
EP (1) EP0571082A1 (de)
GB (1) GB9211025D0 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414794A1 (de) * 1994-04-28 1995-11-02 Kurt R B Wanke Befestigungssockel für Rohre
US5676350A (en) * 1994-12-06 1997-10-14 Galli; George Portable barrier system with portable post mounting device
EP1029985A2 (de) 1999-02-16 2000-08-23 Wolters N.V. Schlagfeste und aufprallenergieabsorbierende Sicherheitspfosten
AU753702B2 (en) * 1999-11-08 2002-10-24 Automotive Safety Engineering Pty Ltd Safety bollard
WO2005103389A1 (en) * 2004-04-20 2005-11-03 Rack Armour Limited Pallet rack impact protector
US7150579B2 (en) * 2002-07-17 2006-12-19 John Reginald Newton Post mounting arrangement
GB2457907A (en) * 2008-02-28 2009-09-02 Portasilo Ltd Raised car parking platform
WO2010120740A3 (en) * 2009-04-15 2011-03-24 Donna Heller Vehicle barrier
ITTV20100043A1 (it) * 2010-03-24 2011-09-25 Fracasso S P A Barriera stradale
ITMI20110674A1 (it) * 2011-04-20 2012-10-21 Spazio Zero S R L Struttura di barriera stradale
ITBO20110244A1 (it) * 2011-05-03 2012-11-04 Consorzio Triveneto Rocciatori Soc Coop A R L Barriera di protezione contro impatti, e sostegno per una tale barriera di protezione
FR2979620A1 (fr) * 2011-09-02 2013-03-08 Damien Cuvelier Structure de montant pour limiter les contraintes exercees sur un montant ou une echelle d'un systeme de rayonnage
US8408624B2 (en) 2009-04-15 2013-04-02 Donna Heller Vehicle barrier
DE102018129308A1 (de) * 2018-11-21 2020-05-28 BeProtect GmbH Modulares Anfahrschutzsystem für Gebäude
EP3741915A1 (de) * 2019-05-21 2020-11-25 Wonjin, Aluminium Einseitig drehbarer poller

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385565A (en) * 1966-09-16 1968-05-28 Cuthbert Fred Roadway divider fence construction
CH535331A (it) * 1972-03-08 1973-03-31 Warthmann Roberto Fondazione elastica per montanti di barriere autostradali per proteggere i cordoli dei ponti e ammortizzare l'urto degli autoveicoli
DE2924432A1 (de) * 1978-10-06 1980-04-24 Tischhauser Ag Hans Einrichtung zur verankerung eines stehers als traeger fuer leitschienen, gelaender, verkehrszeichen u.dgl.
CH618488A5 (en) * 1977-02-01 1980-07-31 Hudec Imrich Peter Shock absorber for roadway safety devices
DE8713562U1 (de) * 1987-10-09 1987-11-19 New-York Hamburger Gummi-Waaren Co AG, 2100 Hamburg Befestigungselement für Leitplanken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385565A (en) * 1966-09-16 1968-05-28 Cuthbert Fred Roadway divider fence construction
CH535331A (it) * 1972-03-08 1973-03-31 Warthmann Roberto Fondazione elastica per montanti di barriere autostradali per proteggere i cordoli dei ponti e ammortizzare l'urto degli autoveicoli
CH618488A5 (en) * 1977-02-01 1980-07-31 Hudec Imrich Peter Shock absorber for roadway safety devices
DE2924432A1 (de) * 1978-10-06 1980-04-24 Tischhauser Ag Hans Einrichtung zur verankerung eines stehers als traeger fuer leitschienen, gelaender, verkehrszeichen u.dgl.
DE8713562U1 (de) * 1987-10-09 1987-11-19 New-York Hamburger Gummi-Waaren Co AG, 2100 Hamburg Befestigungselement für Leitplanken

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414794A1 (de) * 1994-04-28 1995-11-02 Kurt R B Wanke Befestigungssockel für Rohre
US5676350A (en) * 1994-12-06 1997-10-14 Galli; George Portable barrier system with portable post mounting device
EP1029985A2 (de) 1999-02-16 2000-08-23 Wolters N.V. Schlagfeste und aufprallenergieabsorbierende Sicherheitspfosten
AU753702B2 (en) * 1999-11-08 2002-10-24 Automotive Safety Engineering Pty Ltd Safety bollard
WO2002090663A1 (en) * 1999-11-08 2002-11-14 Automotive Safety Engineering Pty Ltd Safety bollard
US7052201B2 (en) 1999-11-08 2006-05-30 Automotive Safety Engineering Pty Ltd Safety bollard
US7150579B2 (en) * 2002-07-17 2006-12-19 John Reginald Newton Post mounting arrangement
US8267262B2 (en) 2004-04-20 2012-09-18 Rack Armour Limited Pallet rack impact protector
WO2005103389A1 (en) * 2004-04-20 2005-11-03 Rack Armour Limited Pallet rack impact protector
GB2457907A (en) * 2008-02-28 2009-09-02 Portasilo Ltd Raised car parking platform
WO2010120740A3 (en) * 2009-04-15 2011-03-24 Donna Heller Vehicle barrier
CN102427969A (zh) * 2009-04-15 2012-04-25 唐娜·黑勒 车辆阻隔装置
US8408624B2 (en) 2009-04-15 2013-04-02 Donna Heller Vehicle barrier
ITTV20100043A1 (it) * 2010-03-24 2011-09-25 Fracasso S P A Barriera stradale
ITMI20110674A1 (it) * 2011-04-20 2012-10-21 Spazio Zero S R L Struttura di barriera stradale
ITBO20110244A1 (it) * 2011-05-03 2012-11-04 Consorzio Triveneto Rocciatori Soc Coop A R L Barriera di protezione contro impatti, e sostegno per una tale barriera di protezione
FR2979620A1 (fr) * 2011-09-02 2013-03-08 Damien Cuvelier Structure de montant pour limiter les contraintes exercees sur un montant ou une echelle d'un systeme de rayonnage
DE102018129308A1 (de) * 2018-11-21 2020-05-28 BeProtect GmbH Modulares Anfahrschutzsystem für Gebäude
EP3741915A1 (de) * 2019-05-21 2020-11-25 Wonjin, Aluminium Einseitig drehbarer poller

Also Published As

Publication number Publication date
GB9211025D0 (en) 1992-07-08

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