EP0708206A1 - Halbsteife Leitplanke mit Lage-Korrektur und kontrollierte Dissipation der Aufprallenergie - Google Patents

Halbsteife Leitplanke mit Lage-Korrektur und kontrollierte Dissipation der Aufprallenergie Download PDF

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Publication number
EP0708206A1
EP0708206A1 EP95116362A EP95116362A EP0708206A1 EP 0708206 A1 EP0708206 A1 EP 0708206A1 EP 95116362 A EP95116362 A EP 95116362A EP 95116362 A EP95116362 A EP 95116362A EP 0708206 A1 EP0708206 A1 EP 0708206A1
Authority
EP
European Patent Office
Prior art keywords
post
barrier
rail
spacer
cams
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Withdrawn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
EP95116362A
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English (en)
French (fr)
Inventor
Antonio Pellecchia
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.)
CENTRO ACCIAI SpA
Original Assignee
CENTRO ACCIAI SpA
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 CENTRO ACCIAI SpA filed Critical CENTRO ACCIAI SpA
Publication of EP0708206A1 publication Critical patent/EP0708206A1/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Withdrawn legal-status Critical Current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
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means

Definitions

  • the present invention relates to a semirigid, position-correctable road barrier for controlled impact energy dissipation.
  • the present invention relates to a semirigid road barrier of the type described and illustrated in European Patent Application n.93101729.7 filed on 4 February, 1993, by the present Applicant, and comprising a number of posts, a shaped metal rail extending crosswise to the posts, and a number of connecting assemblies for connecting each post to a respective intermediate portion of the rail.
  • Each connecting assembly of known barriers of the above type is an energy absorbing assembly, and normally comprises a varying number of breakoff plates which, upon a vehicle colliding with the rail, are severed to dissipate, relatively sharply, part of the impact energy of the vehicle.
  • Known connecting assemblies also comprise substantially plate-like members connected on one side to the rail and on the other to the post, and which, upon impact, rotate in relation to the post about an instantaneous hinge axis to prevent a variation in the inclination of the impact surface of the rail in relation to the road surface.
  • the plate members are also connected to the post in such a manner as to move, in relation to the post and in a direction parallel to its axis, between two limit axial positions, and so permit the post to bend freely and partly backwards, i.e. outwards of the road.
  • the breakoff plates are first severed and the plate members shifted in substantially uncontrolled manner parallel to the axis of the post; and the rail then drops in relation to the road surface, by virtue of it being permanently connected to and hence forced to accompany the post which, in many cases, is knocked into an almost horizontal position.
  • a semirigid, position-correctable road barrier for controlled impact energy dissipation comprising a number of posts with respective axes; at least one shaped rail extending crosswise to the posts; and, for each post, a connecting assembly for connecting the post to a respective intermediate portion of the rail; each connecting assembly in turn comprising a spacer interposed between the rail and the relative post, and connecting means for connecting the spacer to the relative post; characterized in that said connecting means comprise a first and second cam guide assembly in turn comprising respective cams on one of either said spacer or said post, and respective stop members associated with the other of either said spacer or said post; said cams presenting respective first portions cooperating with the relative said stop members to define a substantially rigid connection of the spacer and relative post at the initial impact stage in which the relative post is still substantially upright.
  • Said connecting means of the above barrier preferably also comprise release means associated with the post, and for automatically detaching the rail from the post as the post is deformed.
  • Number 1 in Figures 1 and 2 indicates a semirigid, position-correctable road barrier for controlled impact energy dissipation, commonly known as a guardrail, and installed along the edge of a road 2.
  • Barrier 1 comprises a number of posts 3 with respective vertical axes 4 ( Figure 3); a shaped (e.g. triple-ridge) rail 5 extending crosswise to posts 3; and, for each post 3, a connecting assembly 6 for connecting post 3 to a respective intermediate portion of rail 5.
  • Each post 3 comprises a metal channel section with its concavity facing the adjacent post 3, and in turn comprising two lateral walls or wings 7 parallel to each other and to rail 5, and an intermediate wall or core 8 perpendicular to rail 5.
  • Each post 3 comprises a bottom end portion 9 fitted into the ground in known manner; and a top end portion 10 connected to rail 5 and presenting an upper slot 11 open at the top end, and a lower slot 12, which slots 11 and 12 are formed in wall 8 and aligned with each other parallel to the axis 4 of post 3.
  • each assembly 6 provides for dissipating at least part of the impact energy to which rail 5 is subjected, and comprises a spacer 13 interposed between rail 5 and post 3, and a connecting device 14 for connecting spacer 13 to post 3.
  • spacer 13 comprises a substantially parallelepiped box body 15 extending crosswise to post 3 and perpendicularly to rail 5, projecting on either side of post 3, and partly engaged by portion 10.
  • Body 15 comprises two parallel plates 16 perpendicular to rail 5, located on either side of post 3, and each presenting an integral top and bottom outer tab 17, 18 perpendicular to rail 5 and to plate 16.
  • body 15 On the side facing rail 5, body 15 also comprises an end wall 19 with two openings 20, and supports a projecting metal shell 21 extending between wall 19 and rail 5 and which is deformed gradually by a load less than that required to bend post 3.
  • shell 21 comprises two cylindrical half shells 22 presenting generating lines parallel to axis 4, and each extending from a respective plate 16 to which it is connected by a respective connecting tab integral with half shell 22, and by means of a pair of through bolts 23.
  • half shells 22 Opposite the ends connected to the respective connecting tabs, half shells 22 present respective end portions superimposed and connected to each other and to rail 5 by a pair of bolts 24.
  • connecting device 14 comprises a first and second cam guide assembly 25 and 26 for continuously imposing a predetermined connection of spacer 13, and hence rail 5, to post 3 during the period of interaction between the vehicle and barrier 1, i.e. during the period in which the impact energy of the colliding vehicle is absorbed.
  • Guide assemblies 25, 26 comprise respective cams 27, 28 on spacer 13, and respective stop members cooperating with respective cams 27, 28 and defined by two bolts 29, 30 associated with post 3, and of which bolt 30 is smaller in diameter than bolt 29.
  • cam 27 is defined by a pair of shaped slots 31 formed facing each other in respective plates 16 and partly at slot 11 formed in post 3.
  • Each slot 31 comprises a first and second portion 32, 33; the first portion 32 extending towards tab 18 and shell 21 from a portion of respective plate 16 close to tab 17; and the second portion 33 extending towards tab 18 and shell 21 from the bottom end of first portion 32.
  • Portions 32 and 33 form with each other an obtuse angle A, and form respective angles B and C, of which angle B is greater than angle C, with a plane P along axis 4 and perpendicular to plates 16.
  • cam 28 is defined by a pair of shaped slots 35 formed facing each other in respective plates 16 and partly at slot 12 formed in post 3.
  • Each slot 35 is narrower than slot 31, and presents a length M, measured in said vertical plane P, shorter than the length L of slot 31 measured in the same plane P.
  • Each slot 35 extends between slot 31 and bottom tab 18, and comprises a first and second curved portion 36, 37; first portion 36 extends beneath and presents its concavity facing portion 32 of corresponding slot 31; and second portion 37 extends towards tab 18 and shell 21, and presents a portion extending beneath second portion 33, its convexity facing second portion 33, and a radius of curvature greater than that of first curved portion 36.
  • bolts 29 and 30 extend perpendicularly to plates 16, and respectively engage in sliding manner slots 11, 31 and slots 12, 35.
  • Bolts 29 and 30 also engage in sliding manner respective slots 38 and 39 ( Figures 3, 5, 7) formed in the central wall 40 of a tubular U-shaped body 41 extending inside portion 10 of post 3 to close the channel section.
  • Slots 38 and 39 are formed in line with each other parallel to axis 4 and corresponding with or facing respective slots 11 and 12 in post 3.
  • device 14 also comprises a pair of spacer plates 41a, each fitted outside a respective plate 16 and presenting holes engaged by the shanks of bolts 29, 30.
  • tubular body 41 is fitted telescopically to portion 10, and is held frictionally inside portion 10 by a pair of through bolts 42 extending through respective holes in walls 7 of post 3, and each engaging in sliding manner a respective longitudinal slot 43 formed in a respective lateral wall 44 of body 41 contacting respective wall 7, and extending parallel to axis 4 from the bottom edge of body 41.
  • barrier 1 also comprises one or two traction belts or cables 45, each defined by a metal strip extending on the opposite side of posts 3 to rail 5, and connected integral with each body 15, at the opposite end to that fitted with shell 21, by means of a U-shaped bracket 46 to which it is fitted integrally by a bolt 46a. More specifically, bracket 46 presents a central wall 47 closing respective body 15, and two lateral walls 48 extending outside respective plates 16 and connected integral with plates 16 by means of respective bolts 49.
  • barrier 1 also comprises a further rail or wheel guard 50 extending parallel to and beneath rail 5, and defined by a channel section with its concavity facing posts 3.
  • Rail 50 is connected to each post 3 by a respective connecting device 51 defined by a channel section 52 extending perpendicular to post 3 and parallel to body 15, and connected at one end to rail 50 by a bolt 53, and at the opposite end to wall 8 of post 3 by a bolt 54 engaging in sliding manner a longitudinal slot 55 formed in the central wall or core of section 52.
  • Slot 55 extends perpendicular to axis 4, and presents a first portion 56 of a width approximately equal to but no less than the diameter of bolt 54, and a second portion 57 extending from rail 50 and narrower than the diameter of bolt 54.
  • slot 55 is of constant width
  • bolt 54 comprises a spherical head, and a quadrangular-section underhead portion engaging slot 55.
  • barrier 1 Operation of barrier 1 will now be described, for the sake of simplicity, with reference to a portion comprising one post 3, and as of the condition in which both post 3 and rails 5, 50 are undeformed ( Figures 3, 13a), bolts 29, 30 are located at the top end of respective portions 32, 36 of respective cams 27, 28, and bolt 54 engages portion 56 of slot 55 to maintain rail 50 in the extracted position.
  • post 3 starts to bend (Figure 13c), so that bolts 29, 30 slide out of respective portions 32, 36 and engage respective portions 33, 37; and, as post 3 bends further ( Figures 13c, 13d), bolts 29, 30 slide along respective portions 33, 37 to so control the mutual displacement of spacer 13 and post 3 that the position of rail 5 in relation to road 2 remains substantially unchanged, thus preventing the formation of ramps capable of "launching" the colliding vehicle.
  • strip 45 continues to be subjected to pulling stress and to resist deformation of rail 5, which therefore continues to effectively absorb the impact energy and effectively retain the vehicle; whereas, post 3, which by now is fully disconnected, is free to bend, even into the fully horizontal position.
  • part of the impact energy of the vehicle is also absorbed by rail 50, which withdraws gradually towards post 3 into a limit position in opposition to the varying resistance of device 51. More specifically, upon impact, bolt 54 first travels along portion 56 of slot 55, and the reaction exerted by section 52 on rail 50 is determined solely by the tightening torque of bolt 54. Subsequently, bolt 54 engages portion 57, and the smaller width of portion 57 as compared with the diameter of bolt 54 results in additional friction which, added to the tightening torque of bolt 54, provides for further resisting displacement of rail 50 and hence, increasing the amount of impact energy absorbed.
  • Rail 50 functions differently depending on the type of vehicle involved. More specifically, in the event of a truck colliding with the barrier, rail 50 acts as a wheel guard to prevent the wheels of the truck from engaging posts 3, and at the same time cooperates with rail 5 to absorb the impact energy of the truck. In the event of a car colliding with the barrier, in addition to absorbing part of the impact energy, rail 50 also prevents the car from becoming wedged inside the gap between the road surface and rail 5.
  • Figures 9 and 10 show a C-section post 58, which differs from post 3 by comprising two small lateral walls 59 extending parallel to rail 5, and a large lateral wall 60 perpendicular to rail 5.
  • Wall 60 presents a slot 61 extending from the top edge of and parallel to the axis of post 58, and of a width comparable with that of walls 59.
  • the top end portion of post 58 houses a tubular body 62, which differs from body 41 by comprising two channel sections 63, 64 of different sizes with their concavities facing each other; the lateral walls of section 63 are positioned facing and superimposed on the lateral walls of section 64, and are connected integral with the lateral walls of section 64 by means of respective bolts 65; and the shank of each bolt 65 projects from the respective lateral wall of section 63, and engages in sliding manner a respective slot 66 formed in a respective wall 59 and extending from said top edge of post 58.
  • Body 62 also differs from body 41 by comprising a pair of slots 38 and a pair of slots 39; the slots in each pair are the same shape and positioned facing each other; and, in use, body 62 is withdrawn from post 58 together with bolts 29 and 30.
  • body 62 comprises two sections 63, 64 of the same shape and size.
  • Figure 12 shows a double metal barrier 65a, which differs from barrier 1 by comprising two parallel rails 5 on either side of posts 3, and a connecting assembly 66 for connecting rails 5 to each post 3.
  • Each connecting assembly 66 comprises a spacer 67 in turn comprising two spacers 68 substantially similar to spacer 13 and extending in opposite directions on either side of post 3. More specifically, measured perpendicularly to post 3, spacers 68 are shorter in length than spacer 13 of barrier 1, and the respective end portions opposite those fitted with respective shells 21 are integral with each other and so formed that first portions 32, 36 of respective cams 27, 28 are substantially coincident with each other, and second portions 33, 37 of respective cams 27, 28 extend symmetrically on either side of plane P.
  • Barrier 65a also differs from barrier 1 by comprising two wheel guard rails 50 beneath and parallel to respective rails 5, and connected to the posts by a connecting assembly 69 comprising two devices 51, the channel sections 52 of which are of different sizes and connected telescopically to each other.
  • Barriers 1 and 65a as described above therefore provide for a high degree of reliability and efficiency, by absorbing the impact energy transmitted by the vehicle to rails 5, 50 with substantially no change in the position of the impact surface of the rails in relation to road 2, thus presenting the formation of ramps, and by absorbing the impact energy of the vehicle gradually and in controlled manner throughout the period of interaction between the vehicle and rails 5, 50.
  • portions 32 and 36 provides for a substantially rigid connection of spacers 13 and respective posts 3, 58, so that the impact energy of the vehicle is initially absorbed by rail 5, and by shells 21 which are deformed totally before posts 3, 58 start to bend; and, following the initial impact stage, the design of portions 33 and 37 provides for continuously rotating and simultaneously translating rail 5 in relation to posts 3, 58.
  • bodies 41, 62 connected telescopically to the free ends of the posts provide, as compared with known barriers, for tripling the travel of rail 5 in relation to the posts 3, 58 and for gradually detaching rail 5 from the posts, so that, on reaching a given bend angle, the posts are detached from the spacers and free to deform without affecting rail 5 which continues its retaining and arresting function with substantially no change in height in relation to road 2 ( Figure 13e).
  • the retaining function of rail 5 is further enhanced by belt/s 45, which in any case cooperate directly with the rail as opposed to the posts 3, 58 as in known solutions.
  • barriers 1 and 65a as described and illustrated herein without, however, departing from the scope of the present invention.
  • shells 21 may be formed in one piece, and need not necessarily be cylindrical.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Road Paving Structures (AREA)
EP95116362A 1994-10-17 1995-10-17 Halbsteife Leitplanke mit Lage-Korrektur und kontrollierte Dissipation der Aufprallenergie Withdrawn EP0708206A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94TO000822A IT1268127B1 (it) 1994-10-17 1994-10-17 Barriera stradale semirigida a dissipazione controllata dell'energia d'urto con correzione di assetto.
ITTO940822 1994-10-17

Publications (1)

Publication Number Publication Date
EP0708206A1 true EP0708206A1 (de) 1996-04-24

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EP95116362A Withdrawn EP0708206A1 (de) 1994-10-17 1995-10-17 Halbsteife Leitplanke mit Lage-Korrektur und kontrollierte Dissipation der Aufprallenergie

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EP (1) EP0708206A1 (de)
IT (1) IT1268127B1 (de)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036631A1 (en) * 1998-01-19 1999-07-22 Ilva Pali Dalmine S.R.L. Improvements to a semirigid, position-correctable, collision-energy-dissipating, guardrail
WO1999043892A1 (en) * 1998-02-24 1999-09-02 Ilva Pali Dalmine S.R.L. Semirigid, position-correctable, collision-energy-dissipating guardrail
WO2000009812A1 (en) * 1998-08-13 2000-02-24 Autostrade Concessioni E Costruzioni A device for calibrating the decelerations of 'light' vehicles upon impact
FR2785309A1 (fr) * 1998-11-04 2000-05-05 Sec Envel Barriere de securite pour voies de circulation de vehicules, comprenant deux lisses superposees a resistances d'enfoncement differentielles
WO2000028147A1 (en) * 1998-11-06 2000-05-18 Ilva Pali Dalmine S.R.L. Improvements to a semirigid, position-correctable, collision-energy-dissipating guardrail
FR2793501A1 (fr) * 1999-05-12 2000-11-17 Profiles Du Ct Dispositif de montage d'une glissiere de securite sur des supports verticaux de fixation au sol
WO2001059219A1 (en) * 2000-02-09 2001-08-16 Metalmeccanica Fracasso S.P.A. Road safety barrier
EP1213391A2 (de) * 2000-12-11 2002-06-12 Provincia Autonoma Di Bolzano Schutzplankeneinrichtung
EP1251206A3 (de) * 2001-04-17 2004-06-16 Vittorio Pareti Leitplankenabstandhalter
KR20040090366A (ko) * 2003-05-09 2004-10-22 (주)티에이엔 충격흡수용 강성 가드레일장치
EP1498549A1 (de) * 2003-07-18 2005-01-19 Worcester Polytechnic Institute Wiederverwendbare Leitplanken aus Polyäthylen mit hohem Molekulargewicht oder Polyäthylen mit hoher Dichte
FR2862320A1 (fr) 2003-11-18 2005-05-20 Sec Nevel Procede d'absorption de chocs contre une barriere de securite pour voies de circulation et barriere de securite de mise en oeuvre
EP1566486A1 (de) * 2004-02-23 2005-08-24 Profil R Halter für Leitplanken
EP1719840A2 (de) * 2005-05-04 2006-11-08 Studiengesellschaft für Stahlschutzplanken e.V. Schutzplankenanordnung
WO2008090369A1 (en) * 2007-01-26 2008-07-31 Corus Uk Limited Safety barrier
WO2010105307A1 (en) 2009-03-19 2010-09-23 Industrial Galvanizers Corporation Pty Ltd Improved road barrier
US20120119175A1 (en) * 2007-08-21 2012-05-17 Nucor Corporation Roadway guardrail system
AU2008289335B2 (en) * 2007-08-21 2013-08-29 Nucor Corporation Roadway guardrail system
WO2014076298A1 (de) * 2012-11-19 2014-05-22 Safe Patentverwaltungs- Und Verwertungs Gmbh Befestigungselement für die fixierung von anschlagpunkten und/oder statischen lasten an metallprofilen
AT513682A1 (de) * 2012-04-13 2014-06-15 Safe Patentverwaltungs Und Verwertungs Gmbh Befestigungselement für die Fixierung von Anschlagpunkten und/oder statischen Lasten an Metallprofilen
WO2014207473A1 (en) * 2013-06-28 2014-12-31 Hill & Smith Limited Road safety barrier
US9051699B2 (en) 2013-01-22 2015-06-09 Fletcher Building Holdings Limited Pedestrian and vehicle barrier
AU2008261143B2 (en) * 2007-12-21 2015-07-02 Industrial Galvanizers Corporation Pty Ltd Improved Guard Rail Post
US9200417B2 (en) 2012-11-27 2015-12-01 Energy Absorption Systems, Inc. Guardrail system with a releasable post
EP2628852A3 (de) * 2011-12-15 2016-04-27 DAK Acelszerkezeti Kft. Straßenleitplankenstruktur mit Stützpfosten und Verfahren zur Installation der Straßenleitplankenstruktur
CN107130543A (zh) * 2016-02-29 2017-09-05 贵州华佑金属制品有限公司 道路防护栏
AU2017210505B2 (en) * 2007-12-21 2019-05-02 Industrial Galvanizers Corporation Pty Ltd Improved Guard Rail Assembly
US10329722B2 (en) 2011-05-30 2019-06-25 Industrial Galvanizers Corporation Pty Ltd. Barrier Construction
US10570641B2 (en) 2015-11-27 2020-02-25 Industrial Galvanizers Corporation Pty Ltd Parking barrier system and post
US11371198B2 (en) 2018-07-26 2022-06-28 Industrial Galvanizers Corporation Pty Ltd Spacer piece for a guard rail system

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE2547543A1 (de) * 1974-10-24 1976-04-29 Vmw Ranshofen Berndorf Ag Leitschiene mit im abstand hinter ihr angeordneter zugbandsicherung
DE3640821C1 (en) * 1986-11-28 1988-03-24 Spig Schutzplanken Prod Gmbh Protective barrier arrangement
EP0356686A1 (de) * 1988-08-03 1990-03-07 METALMECCANICA FRACASSO S.p.A. Leitplankenanordnung
FR2667631A1 (fr) * 1990-10-05 1992-04-10 Escote Autoroute Esterel Cote Dispositif de renforcement des equipements lateraux des viaducs par liaison mecanique continue.
EP0554864A1 (de) * 1992-02-04 1993-08-11 CENTRO ACCIAI S.p.A. Halbsteife Leitplanke für kontrollierte Dissipation der Aufprallenergie und Lage-Korrektur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547543A1 (de) * 1974-10-24 1976-04-29 Vmw Ranshofen Berndorf Ag Leitschiene mit im abstand hinter ihr angeordneter zugbandsicherung
DE3640821C1 (en) * 1986-11-28 1988-03-24 Spig Schutzplanken Prod Gmbh Protective barrier arrangement
EP0356686A1 (de) * 1988-08-03 1990-03-07 METALMECCANICA FRACASSO S.p.A. Leitplankenanordnung
FR2667631A1 (fr) * 1990-10-05 1992-04-10 Escote Autoroute Esterel Cote Dispositif de renforcement des equipements lateraux des viaducs par liaison mecanique continue.
EP0554864A1 (de) * 1992-02-04 1993-08-11 CENTRO ACCIAI S.p.A. Halbsteife Leitplanke für kontrollierte Dissipation der Aufprallenergie und Lage-Korrektur

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036631A1 (en) * 1998-01-19 1999-07-22 Ilva Pali Dalmine S.R.L. Improvements to a semirigid, position-correctable, collision-energy-dissipating, guardrail
WO1999043892A1 (en) * 1998-02-24 1999-09-02 Ilva Pali Dalmine S.R.L. Semirigid, position-correctable, collision-energy-dissipating guardrail
WO2000009812A1 (en) * 1998-08-13 2000-02-24 Autostrade Concessioni E Costruzioni A device for calibrating the decelerations of 'light' vehicles upon impact
FR2785309A1 (fr) * 1998-11-04 2000-05-05 Sec Envel Barriere de securite pour voies de circulation de vehicules, comprenant deux lisses superposees a resistances d'enfoncement differentielles
EP0999310A1 (de) * 1998-11-04 2000-05-10 Sec Envel S.à.r.l. Leitplanken für Fahrbahnen, mit zwei übereinander angeordneten Holmen mit differentiellem Eindringungswiderstand
WO2000028147A1 (en) * 1998-11-06 2000-05-18 Ilva Pali Dalmine S.R.L. Improvements to a semirigid, position-correctable, collision-energy-dissipating guardrail
FR2793501A1 (fr) * 1999-05-12 2000-11-17 Profiles Du Ct Dispositif de montage d'une glissiere de securite sur des supports verticaux de fixation au sol
WO2001059219A1 (en) * 2000-02-09 2001-08-16 Metalmeccanica Fracasso S.P.A. Road safety barrier
EP1213391A3 (de) * 2000-12-11 2005-06-15 Provincia Autonoma Di Bolzano Schutzplankeneinrichtung
EP1213391A2 (de) * 2000-12-11 2002-06-12 Provincia Autonoma Di Bolzano Schutzplankeneinrichtung
EP1251206A3 (de) * 2001-04-17 2004-06-16 Vittorio Pareti Leitplankenabstandhalter
KR20040090366A (ko) * 2003-05-09 2004-10-22 (주)티에이엔 충격흡수용 강성 가드레일장치
EP1498549A1 (de) * 2003-07-18 2005-01-19 Worcester Polytechnic Institute Wiederverwendbare Leitplanken aus Polyäthylen mit hohem Molekulargewicht oder Polyäthylen mit hoher Dichte
FR2862320A1 (fr) 2003-11-18 2005-05-20 Sec Nevel Procede d'absorption de chocs contre une barriere de securite pour voies de circulation et barriere de securite de mise en oeuvre
EP1533423A1 (de) 2003-11-18 2005-05-25 Sec Envel Verfahren zur Aufnahme von Stossenergie an Schutzleitplanken von Fahrbahnen und Schutzleitplanke dafür
EP1566486A1 (de) * 2004-02-23 2005-08-24 Profil R Halter für Leitplanken
FR2866662A1 (fr) * 2004-02-23 2005-08-26 Profil R Dispositif de retenue pour glissiere de securite
EP1719840A2 (de) * 2005-05-04 2006-11-08 Studiengesellschaft für Stahlschutzplanken e.V. Schutzplankenanordnung
EP1719840A3 (de) * 2005-05-04 2006-12-27 Studiengesellschaft für Stahlschutzplanken e.V. Schutzplankenanordnung
WO2008090369A1 (en) * 2007-01-26 2008-07-31 Corus Uk Limited Safety barrier
AU2008289335B2 (en) * 2007-08-21 2013-08-29 Nucor Corporation Roadway guardrail system
US8807536B2 (en) 2007-08-21 2014-08-19 Nucor Corporation Roadway guardrail system
US20120119175A1 (en) * 2007-08-21 2012-05-17 Nucor Corporation Roadway guardrail system
US8353499B2 (en) 2007-08-21 2013-01-15 Nucor Corporation Roadway guardrail system
US9863106B2 (en) 2007-08-21 2018-01-09 Nucor Corporation Roadway guardrail system
AU2017210505B2 (en) * 2007-12-21 2019-05-02 Industrial Galvanizers Corporation Pty Ltd Improved Guard Rail Assembly
AU2008261143B2 (en) * 2007-12-21 2015-07-02 Industrial Galvanizers Corporation Pty Ltd Improved Guard Rail Post
EP3312343A1 (de) * 2009-03-19 2018-04-25 Industrial Galvanizers Corporation PTY, Ltd. Verbesserte barriere
EP2408970A4 (de) * 2009-03-19 2014-09-17 Ind Galvanizers Corp Pty Ltd Verbesserte strassensperre
US10501902B2 (en) 2009-03-19 2019-12-10 Industrial Galvanizers Corporation Pty Ltd Road barrier
WO2010105307A1 (en) 2009-03-19 2010-09-23 Industrial Galvanizers Corporation Pty Ltd Improved road barrier
EP2408970A1 (de) * 2009-03-19 2012-01-25 Industrial Galvanizers Corporation PTY, Ltd. Verbesserte strassensperre
US11434613B2 (en) 2011-05-30 2022-09-06 Industrial Galvanizers Corporation Pty Ltd. Barrier construction
US10544554B2 (en) 2011-05-30 2020-01-28 Industrial Galvanizers Corporation Pty Ltd. Barrier construction
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ITTO940822A0 (it) 1994-10-17
ITTO940822A1 (it) 1996-04-17
IT1268127B1 (it) 1997-02-20

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