EP3095918B1 - An absorbing element of a safety traffic barrier and a safety traffic barrier comprising such an absorbing element - Google Patents

An absorbing element of a safety traffic barrier and a safety traffic barrier comprising such an absorbing element Download PDF

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Publication number
EP3095918B1
EP3095918B1 EP16001113.6A EP16001113A EP3095918B1 EP 3095918 B1 EP3095918 B1 EP 3095918B1 EP 16001113 A EP16001113 A EP 16001113A EP 3095918 B1 EP3095918 B1 EP 3095918B1
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EP
European Patent Office
Prior art keywords
absorbing element
mounting wall
walls
deformation
range
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.)
Active
Application number
EP16001113.6A
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German (de)
English (en)
French (fr)
Other versions
EP3095918A1 (en
Inventor
Dawid PAlkowski
Marcin Piechnik
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.)
Stalprodukt SA
Original Assignee
Stalprodukt SA
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Publication date
Application filed by Stalprodukt SA filed Critical Stalprodukt SA
Priority to PL16001113T priority Critical patent/PL3095918T3/pl
Publication of EP3095918A1 publication Critical patent/EP3095918A1/en
Application granted granted Critical
Publication of EP3095918B1 publication Critical patent/EP3095918B1/en
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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 an absorbing element of a safety traffic barrier having a form of a metal bended thin-walled shape having a first mounting wall provided with connecting means apt to be mounted to a guardrail of a barrier, a second mounting wall being substantially parallel with respect to the first mounting wall and having connecting means apt to be mounted to a post of a barrier, and two deformation walls connecting the first mounting wall with the second mounting wall.
  • the present invention also relates to a safety traffic barrier comprising a number of substantially vertical posts fixed in a substructure, a number of substantially horizontal shaped guardrails, and a number of such absorbing elements connecting the posts with the guardrails.
  • a safety traffic barrier is a safety device for traffic that is commonly disposed in dangerous locations for an absorption of an energy of a possible collision of a vehicle driving a road. Such a barrier constitutes also a physical obstacle that in a case of striking it by a vehicle may make a threat for health or life of traffic participants.
  • the fundamental object of a safety traffic barrier is thus to provide a protection of health and life of traffic participants and providing safety for persons and buildings located in road surroundings.
  • Exemplary safety traffic barriers comprising various absorbing elements are disclosed inter alia in the following patent publications: DE4425182A1 , EP1876301A1 or DE3640821C1 .
  • European patent application EP 2 584 096 A1 discloses a road barrier comprising a number of supporting posts which are fixed to the ground in upright position along the side edge of the carriageway, a longitudinal containment strip which is transversally fixed onto the supporting posts so as to extend along the side edge of the carriageway, at a predetermined height from the ground, and fixing means adapted to rigidly connect the longitudinal containment strip to each supporting post.
  • Said fixing means comprise at least one preset break-off pass-through bolt which, in turn, comprises a pass-through screw which has the threaded stem inserted in passthrough manner across two adjacent structural elements of the road barrier, one of which is either the supporting post or the longitudinal containment strip, and is provided on said threaded stem with a transversal notch which locally reduces the nominal cross-section of the threaded stem by a value ranging between 10% and 90%, so as to form a preferential rupture point of the stem.
  • the object of the present invention has been to provide an absorbing element of a safety traffic barrier that would enable for constructing safety traffic barriers of an improved shock-absorption capability, and additionally would feature a simple and economical construction and ensure a fast installation of safety traffic barriers.
  • an absorbing element of a safety traffic barrier as defined by the features of claim 1.
  • the deformation walls are preferably inclined upward in the direction toward the first mounting wall, and said inclination angle is substantially the same for the both deformation walls.
  • said inclination angle of at least one of the deformation walls is within the range from 4 to 20°, preferably within the range from 5 to 10°, more preferably within the range from 6 to 8°, and particularly preferably amounts about 7°.
  • the proportion of the width of the first mounting wall along the edge of a transition into the deformation wall to the length of the deformation walls in the horizontal plane is preferably within the range from 1.4 to 1.6, and the proportion of the height of the first mounting wall to the length of the deformation walls in the horizontal plane is preferably within the range from 0.5 to 0.7.
  • the radius of a curvature of the transition areas between the walls preferably corresponds to the thickness of the absorbing element. Thanks to that, in a case of forming the absorbing element from zinc-plated sheet metal, a probability of peeling off of zinc in bending areas is decreased.
  • a safety traffic barrier which is characterized in that it comprises the above-defined absorbing elements.
  • the safety traffic barrier of the present invention preferably comprises at least one absorbing element, and preferably a number of absorbing elements having substantially trapezoid deformation walls, the longer edges of which are located at the guardrails.
  • Safety traffic barriers according to the present invention comprising absorbing elements according to the present invention feature a very good energy absorption level and yet providing a decrease of a working width (according to the standard PN-EN 1317).
  • a safety traffic barrier 1 the fragment of which is schematically depicted in Figs. 1 and 5 , comprises a number of substantially vertical posts 2 fixed in a substructure and projecting above the substructure at a height of about 60 cm.
  • Absorbing elements 3 are mounted to the posts 2, wherein substantially horizontal shaped guardrails 4 are in turn mounted to the absorbing elements 3 such that the end sections of the adjoining guardrails 4 are inserted into each other.
  • Particular elements of the barrier 1 are fastened by means of appropriate screws with nuts (that are not shown in Fig. 1 ) and additional washers 5.
  • the absorbing element 3 has a form of a metal shape having a first mounting wall 31, from which are projected the upper deformation wall 32 and the lower deformation wall 33 substantially parallel to each other, from which in turn two coplanar walls 34a and 34b project, thus defining a second mounting wall.
  • the mounting walls 34a and 34b may be obviously projected facing against each other.
  • these mounting walls 34a and 34b may concreate a single second mounting wall, wherein the first mounting wall may be comprised of two separate mounting walls.
  • a longitudinal mounting opening 311 and two compensation openings 312 are formed in the first mounting wall 31, wherein in these openings may be situated heads of screws or nuts connecting the guardrails 4 with each other after an assembly of the barrier 1. Thanks to that the first mounting wall 31 completely adheres to the longitudinal mounting wall 41 of the guardrail 4 providing an increased surface of the contact with the guardrails in a moment of a collision impact. Similarly, the walls 34a and 34b of the second mounting wall have mounting openings 341 enabling for mounting the absorbing element 3 to the post 2 of the barrier 1.
  • the longitudinal shape of certain chosen mounting openings compensates for thermal expansion of guardrails 4 and increases a tolerance of mounting of the barrier 1 elements.
  • the deformation walls 32 and 33 have substantially trapezoid shape, wherein the base angle ⁇ of the legs of the trapezoid shape in the horizontal plane amounts about 71°. Wherein the longer bases of the trapezoid deformation walls 32 and 33 adjoin with the first mounting wall 31 and are located at the guardrail 4.
  • the deformation walls 32 and 33 are inclined upward in the direction toward the first mounting wall 31 at an acute inclination angle ⁇ of about 7°. It is also visible that in the presented embodiment the absorbing element 3 features a symmetry with respect to the vertical plane crossing the center of the first mounting wall 31.
  • the absorbing element 3 has the following dimensions:
  • the proportion of the width S 1 of the first mounting wall 31 along the edge of a transition into the deformation wall 32, 33 to the length D of the deformation walls 32, 33 in the horizontal plane is within the range from 1.4 to 1.6, whereas the proportion of the height H of the first mounting wall 31 to the length D of the deformation walls 32, 33 in the horizontal plane is within the range from 0.5 to 0.7.
  • the absorbing elements 3 according to the present invention are made of low-alloy steel S355J2 of an increased durability according to the standard EN 10025 and are fire-zinc-plated by a submersion method according to the standard EN ISO 1461.
  • the absorbing element 3 has an exceptionally simple shape that additionally ensures a minimization of a surface of post-production cutaway residues from a process of cutting out the absorbing elements 3 from a steel sheet.
  • Table 2 The FEM model of the bus vehicle Name: Unit Value A number of elements 53689 A number of nodes 54458 The vehicle mass [kg] 12869 Dimensions on the axes X [mm] 12688 Y [mm] 2569 Z [mm] 3175 The wheel base X [mm] 6506 The wheel base Y [mm] 1856 The vehicle velocity [km/h] 70.0 The accelerometer [node index] 700002 Table 3 - The FEM model of a safety traffic barrier system (a safety traffic barrier, driven, single) Name Unit Value A number of elements 80184 A number of nodes 86590 The length of an installation [m] 60 Ending Boundary condition Table 4 - Test results Test No.
  • test results obtained indicate that an employment of the absorbing element according to the present invention in road and bridge safety traffic barrier systems makes the barrier systems unexpectedly featuring exceptionally preferable collision shock-absorption parameters.
  • the inclination angle ⁇ of the deformation walls of an absorbing element had a critical effect on the obtained results.
  • the conducted simulation tests have confirmed that the inclination angle ⁇ of the deformation walls of an absorbing element amounting about 7 0 (the test 10/2015) ensured the best results in respect of a working width level that in accordance with the standard EN 1317 corresponded to the level W4 (1.2 m).
  • the barrier was not capable of holding down the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP16001113.6A 2015-05-21 2016-05-17 An absorbing element of a safety traffic barrier and a safety traffic barrier comprising such an absorbing element Active EP3095918B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16001113T PL3095918T3 (pl) 2015-05-21 2016-05-17 Element absorbujący drogowej bariery ochronnej oraz drogowa bariera ochronna zawierająca taki element absorbujący

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL412418A PL412418A1 (pl) 2015-05-21 2015-05-21 Element absorbujący drogowej bariery ochronnej oraz drogowa bariera ochronna zawierająca taki element absorbujący

Publications (2)

Publication Number Publication Date
EP3095918A1 EP3095918A1 (en) 2016-11-23
EP3095918B1 true EP3095918B1 (en) 2018-07-11

Family

ID=56134056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16001113.6A Active EP3095918B1 (en) 2015-05-21 2016-05-17 An absorbing element of a safety traffic barrier and a safety traffic barrier comprising such an absorbing element

Country Status (4)

Country Link
EP (1) EP3095918B1 (pl)
DK (1) DK3095918T3 (pl)
LT (1) LT3095918T (pl)
PL (2) PL412418A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU189650U1 (ru) * 2018-12-11 2019-05-29 Закрытое акционерное общество "Завод Тюменьремдормаш" Отрывная консоль

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL240118B1 (pl) * 2018-04-09 2022-02-14 Stalprodukt Spolka Akcyjna Połączenie klinowe odcinków odbojnicy drogowej bariery ochronnej
PL237583B1 (pl) 2018-06-29 2021-05-04 Gp Spolka Z Ograniczona Odpowiedzialnoscia Przestawna bariera drogowa
PL433044A1 (pl) 2020-02-25 2021-08-30 Czartek Czarnocki, Taczalski, Perczyński Spółka Jawna Bariera ochronna drogowa lub mostowa

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT320711B (de) * 1973-03-01 1975-02-25 Baumann Ernst Hinterspannte Leitschiene
DE3640821C1 (en) 1986-11-28 1988-03-24 Spig Schutzplanken Prod Gmbh Protective barrier arrangement
FR2641804B1 (fr) * 1989-01-17 1992-02-28 Pomero Claude Glissiere de securite routiere a ailes developpees
DE4425182A1 (de) 1994-07-16 1996-01-25 Fusion Kunststoff Gmbh Ummantelung von Pfosten, Rohren oder Trägern
DE102006031504B3 (de) 2006-07-06 2007-09-06 Spig Schutzplanken-Produktions-Gesellschaft Mbh & Co. Kg Verbindungsanordnung zwischen einem einen Schutzplankenstrang tragenden Abstandshalter bzw. Distanzstück und einem Pfosten
AT11255U1 (de) * 2009-02-13 2010-07-15 Asa Protect Entwicklungs Gmbh Leitschiene
ITTV20110144A1 (it) * 2011-10-19 2013-04-20 Fracasso S P A Barriera stradale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU189650U1 (ru) * 2018-12-11 2019-05-29 Закрытое акционерное общество "Завод Тюменьремдормаш" Отрывная консоль

Also Published As

Publication number Publication date
PL3095918T3 (pl) 2019-01-31
DK3095918T3 (en) 2018-10-22
EP3095918A1 (en) 2016-11-23
PL412418A1 (pl) 2016-12-05
LT3095918T (lt) 2018-10-10

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