WO2019137861A1 - Clôture de sécurité à câbles équipée d'un panneau d'absorption de bruit - Google Patents

Clôture de sécurité à câbles équipée d'un panneau d'absorption de bruit Download PDF

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Publication number
WO2019137861A1
WO2019137861A1 PCT/EP2019/050200 EP2019050200W WO2019137861A1 WO 2019137861 A1 WO2019137861 A1 WO 2019137861A1 EP 2019050200 W EP2019050200 W EP 2019050200W WO 2019137861 A1 WO2019137861 A1 WO 2019137861A1
Authority
WO
WIPO (PCT)
Prior art keywords
safety fence
noise absorbing
cables
fence according
cable safety
Prior art date
Application number
PCT/EP2019/050200
Other languages
English (en)
Inventor
Kristian Skovgaard Jørgensen
Original Assignee
Rockwool International A/S
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 Rockwool International A/S filed Critical Rockwool International A/S
Priority to US16/960,841 priority Critical patent/US20200354906A1/en
Priority to EP19700340.3A priority patent/EP3737796B1/fr
Publication of WO2019137861A1 publication Critical patent/WO2019137861A1/fr
Priority to IL275965A priority patent/IL275965A/en

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
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • 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
    • E01F15/0423—Details of rails
    • 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
    • E01F15/06—Continuous barriers extending along roads or between traffic lanes essentially made of cables, nettings or the like
    • 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
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023—Details, e.g. foundations
    • 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
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0088—Suspended, e.g. ropes or mesh

Definitions

  • the present invention relates to a cable road safety fence for installation at a lateral or median side of a road, said cable safety fence comprises a series of spaced apart upright posts, and a plurality of tensioned cables provided at different levels on and supported by said posts.
  • a cable safety fence having a plurality of cables, typically 3 or 4 wire ropes or cables, which are tensioned horizontally between upright posts that are spaced a certain distance apart at the side of a road.
  • the cables are thus essentially horizontally extending, i.e. being substantially parallel with the ground, and provided at different levels above the ground.
  • Examples of such cable safety road fences are known from US 5,039,066 or WO 2010/079334 A1 .
  • guard rail type safety fences may also be provided with noise absorbing means of various kinds, such as disclosed in WO 2010/018028 or EP 1 528 158 A1 .
  • a safety fence of the initially mentioned kind wherein at least one noise absorbing panel is mounted onto the cables with at least two mounting points at different levels.
  • the noise absorbing panels attached to the cables By providing the noise absorbing panels attached to the cables, an extra mass is provided which will contribute to absorb the energy of a vehicle impact and thereby improve the road safety fence performance. In order to meet the safety requirements for road safety fences, it is hereby ensured that the noise absorbing panel will not break off the cable fence structure if impacted by a vehicle. In addition, by mounting the noise panel at mounting points at different levels it is prevented that the noise reducing panel can swing around one of the cables in the cable fence.
  • the noise absorbing panel comprises a noise absorbing material board which is encased in an energy absorbing material provided with openings.
  • an energy absorbing material provided with openings can be formed by a mesh, a grid or a perforated material.
  • the noise absorbing panel is contained in an energy absorbing material, e.g. said mesh whereby an improved noise absorbing panel in a guard rail system may be achieved, which also meets the requirements concerning impact absorption and avoids disintegration at an impact with a vehicle.
  • the noise absorbing material is preferably a mineral wool fibre board, which has very good noise-absorbing characteristics.
  • the noise absorbing panels can also be made with other materials, like foam material, integrated or partial rubber material, integrated or partial plastic material, or other noise absorbing material resistant in regard to weather conditions and wear effects next to traffic ways.
  • the energy absorbing material is a stretch metal netting encasing said noise absorbing material board.
  • Stretch-metal or expanded metal provide very good energy-absorbing characteristics as the netting made of stretch-metal can be deformed to a large degree when impacted.
  • stretch metal netting it is possible to provide different stretch behaviour in respective stress directions. For instance, it is possible to provide a higher stress resistance and thereby a higher energy absorption in an impact situation in longitudinal direction of the traffic way than in vertical direction.
  • the meshes of the stretch metal netting may provide a higher amount of deformation. In those directions where the stretch metal netting has less stress resistance, the meshes of the stretch metal netting deform less. This can be achieved e.g. by rhombus formed meshes, which have a longer diagonal in vertical direction and a shorter diagonal in the horizontal direction. Thereby, the ability of deformation of the rhombus formed meshes in horizontal direction is higher than in vertical direction. Breaking of the panels in any situation, in particular in a crash-situation, is to be avoided.
  • the stretch metal may provide a surface structure with different groups of surfaces which are intentionally oriented into a particular direction. Thereby, it is possible to achieve particular optical reflection effects such that impacting light from a vehicle is reflected in preferred directions by certain groups of surfaces of the net material, whereas the impacting light is being dispersed in other less preferred directions.
  • inclining the groups of surfaces in preferred directions may also support that particular objects colliding with the net material may slide along the surface of the material with less friction in certain preferred directions, whereas objects impacting from another direction experience higher friction.
  • the energy absorbing material can be formed of perforated metal sheets, multi-slit metal sheets, plastic nets, fibre reinforced plastic or rubber material, etc.
  • the encasing of the noise absorbing material is preferably a panel which encloses at least the main sides and the top side of the noise absorbing material.
  • the encasing is made from stretch-metal netting panel which is bent into the box-like shape around the noise absorbing material board.
  • the noise absorbing panel is also provided with good energy absorbing properties in case of a vehicle collision.
  • a plurality of noise absorbing panels is provided in succession wherein neighbouring noise absorbing panels are abutting each other.
  • an unbroken noise screen is provided with no caps in between the noise absorbing panels.
  • the abutting neighbouring noise absorbing panels are secured to each other.
  • the noise absorbing panels will assist each other in absorbing the energy of a vehicle colliding with the safety fence as the panel which is first hit by the vehicle is pushed forward into the next panel, etc. due to the direction of impact of the vehicle.
  • the mounting points between the noise absorbing panel(s) and the cables are laterally off-set from the mounting points between the cables and the upright posts. This ensures that the noise absorbing panels stay together with the cables during a collision.
  • the at least one noise absorbing panel comprises a first mineral wool fibre board and a second mineral wool fibre board each having an interior surface and an exterior surface such that the interior surfaces of said first and second boards abut each other and said boards are secured at the at least two cables.
  • the noise absorbing panels are firmly secured to the cables so safety fence structure is less likely to disintegrate.
  • another advantage is that the cables are protected from the environment, such as corrosion protected, by the noise absorbing panels.
  • the first mineral wool fibre board and/or the second mineral wool fibre board may be provided with grooves for receiving and accommodating the cables.
  • each of the first mineral wool fibre board and second mineral wool board may be secured independently to the cable. This is found advantageous as this embodiment provides the advantage that during maintenance, only one mineral wool board can be removed to inspect the cable without removing the other adjoining board Alternatively, said boards are secured to each other around the at least two cables.
  • the assembly of the noise absorbing panel around the cables may be by gluing and/or bolting the first mineral wool fibre board and the second mineral wool fibre board to each other, such as using through-going tension bolts.
  • the exterior surfaces of the first mineral wool fibre board and the second mineral wool fibre board are provided with a protective exterior energy absorbing cover, such as a perforated metal panel, a stretch-metal panel or the like.
  • the protective cover such as panels or plates on each side of the noise absorbing panel may be glued to the surfaces of the first and second mineral boards, respectively or bolted together with the bolting used for the assembly of the noise absorbing panel.
  • the at least one noise absorbing panel is provided as a material surrounding the at least two cables enclosing said cables, and preferably provided with a protective outer energy absorbing cover.
  • the noise absorbing panel may be moulded or otherwise formed on site around the cables by moulding or otherwise forming a mineral wool fibre mixture or other kinds of suitable materials.
  • Fig. 1 is a schematic perspective view of a cable road safety fence according to an embodiment of the invention
  • Fig. 2 is a schematic side view of same
  • Figs. 3 and 4 are two schematic side views of different embodiments of a cable road safety fence according to an embodiment of the invention.
  • Fig. 5 is a schematic top view of a cable road safety fence according to an embodiment of the invention.
  • Figs. 6 to 8 are schematic side views of three embodiments according to a second series of embodiments.
  • Fig. 9 is a schematic side view of a further embodiment of a cable road safety fence according to the invention.
  • a cable road safety fence according to an embodiment of the invention is shown, which is installed at a lateral or median side of a road 10.
  • the cable safety fence comprises a series of spaced apart upright posts 1 with a plurality of tensioned cables 2 provided at different levels on and supported by said posts 1.
  • a number of noise absorbing panels On the side facing away from the road 10, a number of noise absorbing panels
  • each noise absorbing panel 3 is mounted onto the cables 2 with mounting points 4 at different levels, such that each noise absorbing panel 3 is mounted to at least two cables 2.
  • the mounting points 4 are mounted onto the cables 2 with mounting points 4 at different levels, such that each noise absorbing panel 3 is mounted to at least two cables 2.
  • FIGS 2, 3 and 4 different configurations of the positioning of the cables 2 on the posts 1 are shown. These figures illustrate that the cables 2 may all be on the road facing side of the safety fence or only some of the cables are on the road facing side. Although the illustrated embodiments show three cables 2 and that the noise absorbing panel 3 is mounted to all three cables, it is realised by the invention that it may suffice to mount the noise absorbing panels to two of the cables 2, and that the number of cables may be chosen under the circumstances when designing the cable road safety fence.
  • the mounting points 4 between the noise absorbing panels 3 and the cables 2 are laterally off-set along the cable direction from the cable mounting points 5 between the cables 2 and the upright posts 1 .
  • Each noise absorbing panel 3 comprises a noise absorbing material which is encased in an energy absorbing material provided with openings.
  • the noise absorbing material is a mineral wool fibre material preferably provided as a board, in particular a stone wool fibre board, foam material, integrated or partial rubber material, integrated or partial plastic material, or other noise absorbing material resistant in regard to weather conditions and wear effects next to traffic ways.
  • the energy absorbing material provided with openings comprises a mesh, a grid or a perforated material.
  • the energy absorbing material is a stretch-metal netting encasing said noise absorbing material.
  • the stretch-metal is a ductile metal capable of absorbing energy while being plastically deformed, preferably being galvanised steel.
  • the energy absorbing material may be a perforated metal sheet, a plastic netting or the like and/or a combination thereof, encasing said noise absorbing material.
  • the encasing is preferably provided as a panel which encloses at least the main sides and the top side of the noise absorbing material.
  • the noise absorbing panels 3 are provided in succession along the cables 2 of the safety road fence such the neighbouring noise absorbing panels are abutting each other.
  • the abutting neighbouring noise absorbing panels 3 are secured to each other by suitable connecting elements 6. This ensures that the noise absorbing panels 3 cooperate in absorbing the energy of a vehicle colliding with the road safety fence as the energy can be transferred from one noise absorbing panel to the next.
  • the noise absorbing panels 3 are provided as prefabricated panels and then mounted to the cables 2, it is realised by the invention that the noise absorbing panels 3 may also be provided as shown in the figures 6 to 9 showing a second series of embodiments of the invention.
  • the noise absorbing panel 3 comprises a first mineral wool fibre board 31 and a second mineral wool fibre board 32 each having an interior surface and an exterior surface such that the interior surfaces of said first and second boards 31 , 32 are abutting each other.
  • the boards 31 , 32 are then secured to each other around at least two cables 2, preferably all the cables 2.
  • first mineral wool fibre board 31 and the second mineral wool fibre board 32 may be secured to each other by adhesion as indicated in fig. 6 and/or bolted together, such as using through-going tension bolts as indicated in fig. 7.
  • the boards 31 , 32 may also be secured to each other around the cables 2 by mounting elements 41 , as indicated in the figures 6 and 7.
  • the first mineral wool fibre board 31 and second mineral wool board 32 may also be secured independently to the cable 2 by mounting elements 42. As indicated in fig. 8, both the boards 31 , 32 may also be secured to the cables 2 independently, where the first board 31 is secured to the cables 2 by mounting elements 41 and the second board 32 is secured to the cables 2 by the mounting elements 41 a.
  • the first mineral wool fibre board 31 and/or the second mineral wool fibre board 32 is/are provided with grooves thereby providing channels for receiving and accommodating the cables 2. This can ensure a relatively loose mounting of the noise absorbing panels around the cables whilst also providing a protective encasing of the cables from being exposed to the environment.
  • the exterior surfaces of the first mineral wool fibre board 31 and the second mineral wool fibre board 32 are provided with a protective exterior energy absorbing cover 33.
  • the cover 33 may be a perforated metal panel, a stretch- metal panel or the like.
  • the covers 33 may be pre-applied to the mineral boards 31 , 32, e.g. by adhesive.
  • the covers may also be provided as separate sheets mounted to the mineral wool fibre boards 31 , 32 when these are mounted around the cables.
  • a top cover 34 may also be provided. This top cover 34 may be made from a metal sheet material or a polymeric sheet material.
  • the cover is preferably mounted to the protective side covers 33.
  • Lining bars 21 preferably of an elastic material, such as plastic, may be provided on the road facing surface of the noise absorbing panel as shown in fig. 6.
  • the lining bars 21 are preferably provided substantially parallel with the cables and extend in the direction of the road safety fence.
  • the noise absorbing panel is provided as a mineral wool fibre material surrounding the cables 2 enclosing the cables 2, and preferably provided with a protective outer energy absorbing covers 33 on each side.
  • the noise absorbing panel may be moulded or otherwise formed on site around the cables 2 by moulding or otherwise forming a mineral wool fibre mixture, a foam material or other kinds of suitable materials.
  • the noise absorbing panel can be provided as a continuous body, such as a non-divided body extending in the cable direction.

Landscapes

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

Abstract

La présente invention concerne une clôture de sécurité routière à câbles conçue pour une installation au niveau d'un côté latéral ou central d'une route. Ladite clôture de sécurité à câbles comprend une série de piquets verticaux espacés (1) et une pluralité de câbles tendus (2) placés à différents niveaux sur lesdits piquets (1) et supportés par ces derniers. Au moins un panneau d'absorption de bruit (3) est monté sur les câbles (2) avec au moins deux points de montage (4), lesdits points se trouvant à différents niveaux.
PCT/EP2019/050200 2018-01-10 2019-01-07 Clôture de sécurité à câbles équipée d'un panneau d'absorption de bruit WO2019137861A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US16/960,841 US20200354906A1 (en) 2018-01-10 2019-01-07 Cable safety fence with noise absorbing panel
EP19700340.3A EP3737796B1 (fr) 2018-01-10 2019-01-07 Barrière de sécurité de câble comprenant un panneau anti-bruit
IL275965A IL275965A (en) 2018-01-10 2020-07-09 Cable fence for safety that includes a noise-absorbing panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18150973 2018-01-10
EP18150973.8 2018-01-10

Publications (1)

Publication Number Publication Date
WO2019137861A1 true WO2019137861A1 (fr) 2019-07-18

Family

ID=60953770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/050200 WO2019137861A1 (fr) 2018-01-10 2019-01-07 Clôture de sécurité à câbles équipée d'un panneau d'absorption de bruit

Country Status (4)

Country Link
US (1) US20200354906A1 (fr)
EP (1) EP3737796B1 (fr)
IL (1) IL275965A (fr)
WO (1) WO2019137861A1 (fr)

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CN110593145A (zh) * 2019-08-14 2019-12-20 广州北环高速公路有限公司 一种自动变形回弹声屏障

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ES2831420T3 (es) * 2016-07-11 2021-06-08 Rockwool Int Un sistema de banda de protección que absorbe el sonido
CN112813864A (zh) * 2020-07-03 2021-05-18 天工俐德科技发展有限公司 一种具有防撞功能的全封闭屏障

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110593145A (zh) * 2019-08-14 2019-12-20 广州北环高速公路有限公司 一种自动变形回弹声屏障
CN110593145B (zh) * 2019-08-14 2021-05-14 广州北环智能交通科技有限公司 一种自动变形回弹声屏障

Also Published As

Publication number Publication date
US20200354906A1 (en) 2020-11-12
EP3737796B1 (fr) 2023-08-02
EP3737796A1 (fr) 2020-11-18
IL275965A (en) 2020-08-31

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