WO1995030053A1 - Amortisseur d'impact pour glissiere de securite - Google Patents

Amortisseur d'impact pour glissiere de securite Download PDF

Info

Publication number
WO1995030053A1
WO1995030053A1 PCT/EP1995/001653 EP9501653W WO9530053A1 WO 1995030053 A1 WO1995030053 A1 WO 1995030053A1 EP 9501653 W EP9501653 W EP 9501653W WO 9530053 A1 WO9530053 A1 WO 9530053A1
Authority
WO
WIPO (PCT)
Prior art keywords
impact
wall
fastening
support frame
front wall
Prior art date
Application number
PCT/EP1995/001653
Other languages
German (de)
English (en)
Inventor
Karl Urlberger
Original Assignee
Sps Schutzplanken Gmbh
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 Sps Schutzplanken Gmbh filed Critical Sps Schutzplanken Gmbh
Priority to DE59507089T priority Critical patent/DE59507089D1/de
Priority to EP95919371A priority patent/EP0706593B1/fr
Priority to PL95312326A priority patent/PL178026B1/pl
Publication of WO1995030053A1 publication Critical patent/WO1995030053A1/fr

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
    • E01F15/14—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 a crash barrier crash cushion, the type mentioned in the preamble of the main claim.
  • Protective barrier crash dampers of this type are used in front of obstacles, for example bridge pillars, forked streets with masts erected therein, and have essentially two functions in the event of an impact.
  • a known crash barrier impact damper of the type mentioned has a U-shaped concrete construction as a support stand, in which the base of the U points against the direction of travel and as a system for the pipe sections serves. At the same time, this concrete foundation serves as an abutment for the tensioning cables used in such an impact damper structure.
  • the invention is therefore based on the object to improve a crash barrier impact damper of the type mentioned in such a way that the impact and forwarding function are largely retained even in the area of the support frame.
  • the object is achieved by the features specified in the characterizing part.
  • the support device initially supports the last pipe segment and then acts as a damping element even when a vehicle crashes.
  • a U-shape has been found to be a favorable construction for the support device, the base of the U being arranged transversely to the direction of travel as the front wall and the free legs of the U each being slidably attached to a lateral fastening section of the support bracket.
  • the front wall is slidably attached to an end wall arranged at the tapered end of the support frame.
  • the displaceability of the support device at the location of the attachment is advantageously produced by means of an elongated hole screw connection, the elongated holes being advantageously formed on the support device.
  • the fact that the fastening bolts are tightened to a predetermined moment ensures that a certain force is displaced. This displacement ends when the end of the elongated hole has reached the fastening bolt. In such a case, the U-shaped support device deforms and in this way absorbs the kinetic energy of the motor vehicle.
  • the support bracket can have any suitable wedge shape, but a V-shaped shape in plan view has proven favorable, in which the end wall, the deflecting walls and the lateral fastening wall sections for the legs of the U-shaped support device have essentially flat outer surfaces.
  • the front wall in the fastening area is similar to the platform
  • the end wall is projecting, the transition from the front wall level to the plateau being rounded.
  • the rounded edge acts like a joint, so that the deformation takes place relatively easily after a certain initial resistance.
  • the support device is divided in the fastening area, each part having a fastening area with elongated holes and the fastening areas being fixed overlapping on the end wall. In this way it can be prevented that the opposite wall of the support device, which is not involved in the accident, is damaged in the event of a relatively slight impact on the support frame.
  • FIG. 1 is a plan view of the crash barrier crash damper with head part, damping elements and support frame
  • FIG. 1 is an enlarged view of the detail II in Fig. 1,
  • FIG. 3 shows a front view of the support frame with support device
  • Fig. 4 is a view of the support frame from behind
  • FIG. 5 shows a view of the support frame and the support device from the side with the area partially broken away.
  • a crash barrier crash damper 1 is shown in a view from above.
  • the crash barrier 1 has a head part 2, damping elements 3 and a support frame 4.
  • the damping elements 3 are arranged in pairs behind the head part 2, with vertical pipe sections being used as a preferred damping element. These pipe sections can be filled with suitable materials.
  • the row of damping elements is supported on the support frame 4.
  • the support frame 4 has a standing ramp shape, the support frame having a V-shaped shape in the exemplary embodiment shown.
  • the pointed end of the V-shaped support bracket points against the direction of travel.
  • a support device 8 is slidably attached to the support bracket 4.
  • the support device 8 essentially has a U-shaped structure 9, the base of the U being arranged transversely to the direction of travel as a front wall 11 and directly abutting the damping elements 3 lined up in pairs.
  • the free legs of the U-shaped support device 8 are designed as side walls 10, which are each slidably attached to lateral fastening wall sections 7 of the support frame 4, but they can also be screwed on immovably.
  • the fastening wall sections 7 are short extensions of the V-shaped legs of the support frame 4 pointing in the direction of travel.
  • the front wall 11 is also slidably attached to an end wall 5 formed at the tapered end of the support frame.
  • the displaceability of the support device 8 relative to the support frame is achieved by means of an elongated hole screw bolt fastening 13, 16.
  • the fastening bolts 16 are tightened with a predetermined tightening torque so that they remain immobile until a predetermined impact. In the event of an impact exceeding this limit, however, it is possible to move the front wall or the side wall until the elongated hole end is reached. After this such a displacement has taken place, the side walls or front wall may be deformed in the event of a strong impact.
  • the attachment of the side walls 10 of the support device to the side attachment wall section 7 of the support bracket can also be carried out by means of an elongated hole attachment.
  • the geometric shape of the vertical ramp can also be of rounded shape instead of as in the embodiment shown, in which all the walls have flat outer surfaces.
  • FIG. 2 shows an enlarged illustration of the detail II shown in FIG. 1.
  • the front wall 11 of the support device 8 is advanced in the fastening area 12 like a plateau to the headband 5 of the support frame 4 and forms a plateau 12 'relative to the front wall plane 11'.
  • the transition from the front wall level 11 'to the plateau 12' is rounded off, as a result of which a favorable deformation behavior is achieved.
  • the support device 8 is divided in the fastening area 12, with each part having a fastening area 12 with elongated holes 13 and the fastening areas 12 being fixed on the end wall 5 in an overlapping manner.
  • FIG. 3 shows a front view of the front wall
  • openings 14 are provided for the tensioning cables 20 which, see FIG. 2, lead through further openings 14 'in the deflection wall 6 and each in an abutment 19 (see FIG. 4, FIG. 1) of the support block are attached.
  • the abutments 19 are designed as a holding block with a tensioning plate 23 arranged transversely to the direction of tension of the tensioning cables.
  • the tensioning ropes can be tensioned in the usual way on the tensioning plate.
  • Base plate 17 welded to the support frame. It can be screwed onto a foundation in a suitable manner by means of screw bolts.
  • the invention is not limited to the exemplary embodiments and geometric shapes shown.
  • the shape of the support frame can have a rounded V-shape, or the deflecting wall 6 can be corrugated like a washboard or provided with steps, thereby achieving an additional braking effect. It is also possible that the support frame is equipped with conically tapering baffle walls, whereby to prevent wedging, this taper is only pulled down to a height of approximately one wheel diameter of a car, the lower area then again standing vertically .
  • the outer surface of the deflecting wall 6 can also be profiled, provided with beads or cams.
  • the front wall of the support 8 deviating from the essentially flat shape shown, can have an essentially S-shaped structure on each side, the fillet of the S being adapted to the diameter of the immediately adjacent damping element.
  • the support device 8 can have a shape that is essentially T-shaped in plan view, the transverse bar of the T being rounded upward and receiving a damping element in this rounding.
  • the leg of the T runs towards the inclined ramp and is screwed to the deflection wall in a suitable manner.
  • the support device 8 can be formed by a steel plate construction, wherein in a U-shaped design this support device can be bent from one piece, but can also be composed of individual plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Vibration Dampers (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

L'invention concerne un amortisseur d'impact pour glissière de sécurité destiné à assurer une protection contre les obstacles sur les routes. Cet amortisseur comprend une partie frontale (2) et un support d'entretoise (4) entre lesquels des éléments d'amortissement (3) sont alignés les uns derrière les autres, ainsi que, sur les côtés, une glissière de sécurité orientée vers la route. Le support d'entretoise (4) comprend essentiellement une rampe verticale se rétrécissant dans le sens opposé à la circulation, avec au moins une paroi de déviation (6) orientée vers la route.
PCT/EP1995/001653 1994-04-29 1995-05-02 Amortisseur d'impact pour glissiere de securite WO1995030053A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59507089T DE59507089D1 (de) 1994-04-29 1995-05-02 Schutzplanken-anpralldämpfer
EP95919371A EP0706593B1 (fr) 1994-04-29 1995-05-02 Amortisseur d'impact pour glissiere de securite
PL95312326A PL178026B1 (pl) 1994-04-29 1995-05-02 Amortyzator drogowej bariery ochronnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4415118A DE4415118C2 (de) 1994-04-29 1994-04-29 Schutzplanken-Anpralldämpfer
DEP4415118.7 1994-04-29

Publications (1)

Publication Number Publication Date
WO1995030053A1 true WO1995030053A1 (fr) 1995-11-09

Family

ID=6516859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/001653 WO1995030053A1 (fr) 1994-04-29 1995-05-02 Amortisseur d'impact pour glissiere de securite

Country Status (7)

Country Link
EP (1) EP0706593B1 (fr)
AT (1) ATE185860T1 (fr)
CZ (1) CZ284810B6 (fr)
DE (2) DE4415118C2 (fr)
ES (1) ES2140677T3 (fr)
PL (1) PL178026B1 (fr)
WO (1) WO1995030053A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739993C2 (de) * 1997-09-11 2003-04-24 Sps Schutzplanken Gmbh Verlorene Schalung
GB2383362B (en) * 2001-12-18 2005-06-15 Brifen Ltd High integrity transition for safety barriers
CN113981868A (zh) * 2021-10-13 2022-01-28 广西大学 一种具有监测功能的避险车道柔性防坠网系统及安装方法
PL442426A1 (pl) * 2022-09-30 2024-04-02 Wimed Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa Wkład amortyzujący drogowego absorbera zderzeniowego oraz mobilny, drogowy absorber zderzeniowy z wkładem absorbującym

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602151A (en) * 1968-11-20 1971-08-31 Grant W Walker Energy dissipating construction for trains
US4815565A (en) * 1986-12-15 1989-03-28 Sicking Dean L Low maintenance crash cushion end treatment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845936A (en) * 1973-05-25 1974-11-05 Steel Corp Modular crash cushion
DE3914208A1 (de) * 1989-04-28 1990-10-31 Sps Schutzplanken Gmbh Stossdaempfende vorrichtung fuer schutzplankeneinrichtungen, insbesondere fuer trenninseln

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602151A (en) * 1968-11-20 1971-08-31 Grant W Walker Energy dissipating construction for trains
US4815565A (en) * 1986-12-15 1989-03-28 Sicking Dean L Low maintenance crash cushion end treatment

Also Published As

Publication number Publication date
DE59507089D1 (de) 1999-11-25
PL178026B1 (pl) 2000-02-29
CZ350995A3 (en) 1996-05-15
EP0706593B1 (fr) 1999-10-20
DE4415118C2 (de) 1998-08-20
EP0706593A1 (fr) 1996-04-17
DE4415118A1 (de) 1995-11-02
ATE185860T1 (de) 1999-11-15
PL312326A1 (en) 1996-04-15
ES2140677T3 (es) 2000-03-01
CZ284810B6 (cs) 1999-03-17

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