EP0149567A2 - Auffahrdämpfende Vorrichtung - Google Patents

Auffahrdämpfende Vorrichtung Download PDF

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Publication number
EP0149567A2
EP0149567A2 EP85400001A EP85400001A EP0149567A2 EP 0149567 A2 EP0149567 A2 EP 0149567A2 EP 85400001 A EP85400001 A EP 85400001A EP 85400001 A EP85400001 A EP 85400001A EP 0149567 A2 EP0149567 A2 EP 0149567A2
Authority
EP
European Patent Office
Prior art keywords
elements
drums
spacers
downstream
upstream
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.)
Granted
Application number
EP85400001A
Other languages
English (en)
French (fr)
Other versions
EP0149567A3 (en
EP0149567B1 (de
Inventor
Jean Claude Dupuis
Jean Guiraud
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.)
Dupuis Jean-Claude
Original Assignee
Dupuis Jean-Claude
Ministère de l'Urbanisme et du Logement
Gouvernement de la Republique Francaise
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 Dupuis Jean-Claude, Ministère de l'Urbanisme et du Logement, Gouvernement de la Republique Francaise filed Critical Dupuis Jean-Claude
Priority to AT85400001T priority Critical patent/ATE33275T1/de
Publication of EP0149567A2 publication Critical patent/EP0149567A2/de
Publication of EP0149567A3 publication Critical patent/EP0149567A3/fr
Application granted granted Critical
Publication of EP0149567B1 publication Critical patent/EP0149567B1/de
Expired 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
    • E01F15/14—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
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements

Definitions

  • the invention relates to shock attenuating devices intended to be placed in front of fixed obstacles to avoid a brutal collision of vehicles on said obstacles. These devices must be able to stop vehicles by slowing them down quickly and absorbing the impact energy.
  • Document FR-A-2108426 discloses a device of this nature, comprising, from upstream to downstream in the direction of vehicle traffic, a set of energy absorption elements arranged in cells, and an element support; side cables anchored upstream and downstream of the device are provided on the edges of the assembly, as well as protective elements.
  • the cells are delimited by diaphragms intended to support the absorption elements constituted by containers filled with liquid which can escape in a controlled manner.
  • the diaphragms are articulated with protective elements.
  • This device has a certain number of drawbacks, among which one can cite too high a cost both in initial investment and in maintenance due to the complexity of the device and its partial destruction even during side impacts. Furthermore, the arrangement of the protective elements according to the cited document is such that they open laterally during a frontal impact and dangerously clutter the roadway, which is not without creating secondary risks for motor vehicle traffic already dangerous in general in the areas where these devices are installed.
  • the object of the invention is to propose an effective attenuating device which does not have these drawbacks, therefore a device of relatively low cost and easy maintenance.
  • the energy absorption elements are drums placed on the ground, in that there are provided between the cells of the transverse rigid spacers supported by the drums, these spacers being equipped with their ends of hooking members used to keep the side cables energized at the height and guide them and maintain the protective elements.
  • Empty drums are inexpensive items, whether metallic or synthetic. They mainly intervene in the event of a frontal impact where they mechanically absorb the energy of the impact by crushing, without inertia unlike the containers with escaping fluid.
  • the protective elements are advantageously elements of slides fixed at one end to the coupling members of the spacers and free at the other, the free end of an element overlapping the fixed end of the next element, the elements of slides being placed at the same height as and externally to the side cables. In this way, in frontal impact, the slide elements are telescoped without deviating laterally and cluttering the road.
  • the attenuating device 1 essentially consists, from upstream to downstream in the direction of automobile traffic, of a set of drums 2, preferably ordinary empty metal drums, directly placed on the ground 3, placed in front of an element fixed support 4 well anchored in the ground and itself upstream of the obstacle to be avoided (bridge pier, road branch element, etc.) or else constituting said obstacle.
  • the barrels 2 are arranged in cells separated by rigid transverse spacers 5 constituted for example by hollow metal beams with rectangular section. These spacers 5 are maintained at a height lower than that of the barrels 2 by brackets 6 retained on the top of the barrels 2 by legs 7 advantageously welded. Two brackets 6 are sufficient to maintain a spacer.
  • the legs 7 are preferably placed astride two almost adjacent barrels of two neighboring cells.
  • Hanging members 8 are placed at the ends of the spacers. These members 8 can advantageously be flat bent in a U, the legs of which are inserted in the hollow beams 5 and are retained there by a fixing means 9 such as pins, bolts or the like.
  • a bore makes it possible to bolt both an end of a slide element 10, outside of the member 8, and a separating device 11, inside of the member 8.
  • This separator device 11 delimits with the member 8 itself two passages for two superimposed lateral cables 12 securely retained upstream and downstream of the damping device 1 by anchor blocks 13 and 14. These cables 12 have the function of redirecting the cars, of maintaining the drums, and above all of resuming the forces in the event of a side impact.
  • the slide elements 10 are fixed at a single end, either upstream or downstream, the other end overlapping the fixed end of the neighboring element 10, either downstream or upstream: the conventional interlocking profiles of slide 10, as well as the if necessary, additional devices 15 welded to one end. of a slide element 10, keep the consecutive elements 10 correctly nested, and make all of the slide elements 10 a telescopable assembly.
  • the telescoping slide elements 10 are supplemented upstream by a rounded slide element or head 10 'and downstream by conventional slides 10 "supported by posts 16 which allow the obstacle to be well protected.
  • the spacers 5 are identical apart from their length which increases from upstream to downstream.
  • the last spacer, between the last drums 2 and the fixed support 4, which cannot be properly supported by the drums 2, is mounted on a support 17 directly placed on the ground (see fig. 4). This support is wide enough to provide rigid support for the drums allowing them to deform fully during a frontal impact.
  • the barrels 2 in the cells are contiguous in a substantially longitudinal direction. Depending on the width of the cell, they can also be contiguous with other drums in a more or less transverse direction, but this is relatively unimportant since the drums 2 are not intended to absorb lateral shocks.
  • an attenuator device of simple and economical design is obtained, easy to replace.
  • frontal impact the drums crash while absorbing energy, the slide elements telescoping, the whole remains held by the side cables.
  • the cables take up part of the resistant forces (both the cables directly exposed to the impact and those on the other side, due to the transfer of forces by the spacers), the drums are moved transversely but practically not crushed (except possibly the barrel directly facing the shock) so that it is easy and inexpensive to replace the device after a side impact.
  • the shock attenuators according to the invention can take different configurations depending on the environment and the shock speeds to which they are adapted. Rectangular or trapezoidal, they have a length for example of 3 to 9m (distance between fixed support and head), a width of 1 to 2.50m, and require 10 to 30 drums of about 90cm in height. These details are given for information only and are in no way limiting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Dampers (AREA)
  • Crushing And Grinding (AREA)
  • Window Of Vehicle (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP85400001A 1984-01-13 1985-01-02 Auffahrdämpfende Vorrichtung Expired EP0149567B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400001T ATE33275T1 (de) 1984-01-13 1985-01-02 Auffahrdaempfende vorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8400518A FR2558186B1 (fr) 1984-01-13 1984-01-13 Dispositif attenuateur de chocs
FR8400518 1984-01-13

Publications (3)

Publication Number Publication Date
EP0149567A2 true EP0149567A2 (de) 1985-07-24
EP0149567A3 EP0149567A3 (en) 1985-08-14
EP0149567B1 EP0149567B1 (de) 1988-03-30

Family

ID=9300107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400001A Expired EP0149567B1 (de) 1984-01-13 1985-01-02 Auffahrdämpfende Vorrichtung

Country Status (5)

Country Link
EP (1) EP0149567B1 (de)
AT (1) ATE33275T1 (de)
DE (1) DE3562029D1 (de)
ES (1) ES295707Y (de)
FR (1) FR2558186B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708861A1 (de) * 1987-02-20 1988-10-13 Sps Schutzplanken Gmbh Anpralldaempfer
EP0286782A1 (de) * 1987-03-18 1988-10-19 Sps Schutzplanken Gmbh Anpralldämpfer
EP0441109A3 (en) * 1990-02-07 1992-04-08 C.R.A. Centro Ricerche Applicate S.P.A. Shock energy dissipation traffic divider barrier
US6116805A (en) * 1997-05-05 2000-09-12 Gertz; David C. Crash attenuator with a row of compressible hoops
EP1540086A4 (de) * 2002-07-22 2005-12-07 Exodyne Technologies Inc Aufgeweitetes energieabsorptionssystem und verfahren
US7168880B2 (en) 2004-11-17 2007-01-30 Battelle Memorial Institute Impact attenuator system
US7306397B2 (en) 2002-07-22 2007-12-11 Exodyne Technologies, Inc. Energy attenuating safety system
US8894318B2 (en) 2008-03-17 2014-11-25 Battelle Memorial Institute Rebound control material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004058884B4 (de) * 2004-12-06 2018-05-03 Sps Schutzplanken Gmbh Anpralldämpfer an Verkehrswegen
RU2724634C1 (ru) * 2019-11-18 2020-06-25 Александр Валерьевич Чкалин Дорожное фронтальное ограждение

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674115A (en) * 1970-09-23 1972-07-04 Energy Absorption System Liquid shock absorbing buffer
US3845936A (en) * 1973-05-25 1974-11-05 Steel Corp Modular crash cushion
NL8003653A (nl) * 1980-06-24 1982-01-18 Nederlanden Staat Obstakelbeveiliger.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708861A1 (de) * 1987-02-20 1988-10-13 Sps Schutzplanken Gmbh Anpralldaempfer
DE3708861C2 (de) * 1987-02-20 1999-03-25 Sps Schutzplanken Gmbh Anpralldämpfer
EP0286782A1 (de) * 1987-03-18 1988-10-19 Sps Schutzplanken Gmbh Anpralldämpfer
EP0441109A3 (en) * 1990-02-07 1992-04-08 C.R.A. Centro Ricerche Applicate S.P.A. Shock energy dissipation traffic divider barrier
US6116805A (en) * 1997-05-05 2000-09-12 Gertz; David C. Crash attenuator with a row of compressible hoops
US7210874B2 (en) 2001-04-09 2007-05-01 Exodyne Technologies Inc. Flared energy absorbing system and method
EP1540086A4 (de) * 2002-07-22 2005-12-07 Exodyne Technologies Inc Aufgeweitetes energieabsorptionssystem und verfahren
US7306397B2 (en) 2002-07-22 2007-12-11 Exodyne Technologies, Inc. Energy attenuating safety system
US7168880B2 (en) 2004-11-17 2007-01-30 Battelle Memorial Institute Impact attenuator system
US7300223B1 (en) 2004-11-17 2007-11-27 Battelle Memorial Institute Impact attenuator system
US8215864B2 (en) 2004-11-17 2012-07-10 Battelle Memorial Institute Impact attenuator system
US8894318B2 (en) 2008-03-17 2014-11-25 Battelle Memorial Institute Rebound control material

Also Published As

Publication number Publication date
ATE33275T1 (de) 1988-04-15
EP0149567A3 (en) 1985-08-14
FR2558186B1 (fr) 1986-06-20
DE3562029D1 (en) 1988-05-05
EP0149567B1 (de) 1988-03-30
FR2558186A1 (fr) 1985-07-19
ES295707Y (es) 1987-11-01
ES295707U (es) 1987-03-16

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