IL264194A - A sound absorbing guard rail system - Google Patents
A sound absorbing guard rail systemInfo
- Publication number
- IL264194A IL264194A IL264194A IL26419419A IL264194A IL 264194 A IL264194 A IL 264194A IL 264194 A IL264194 A IL 264194A IL 26419419 A IL26419419 A IL 26419419A IL 264194 A IL264194 A IL 264194A
- Authority
- IL
- Israel
- Prior art keywords
- guard rail
- rail system
- noise absorbing
- panel
- stretch
- Prior art date
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
- E01F15/02—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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
-
- 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
-
- 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
- E01F8/0052—Grate-style, e.g. as wall facing
- E01F8/0058—Grate-style, e.g. as wall facing with damping material, e.g. rockwool, sand
-
- 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
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)
Description
Rockwool International A/S 1 of 18Rockwool International A/S 2 of 18Rockwool International A/S 3 of 18Rockwool International A/S 4 of 18Rockwool International A/S 5 of 18Rockwool International A/S 6 of 18Rockwool International A/S 7 of 18Rockwool International A/S 8 of 18Rockwool International A/S 9 of 18Rockwool International A/S 10 of 18Rockwool International A/S 11 of 18Rockwool International A/S 12 of 18Rockwool International A/S 13 of 18Rockwool International A/S 14 of 18Rockwool International A/S 15 of 18Rockwool International A/S 16 of 18Rockwool International A/S 17 of 18Rockwool International A/S 18 of 181
A sound absorbing guard rail system
The present invention relates to a sound absorbing guard rail system for installation at
a lateral side of a road, said guard rail system comprises a series of supporting posts,
that are preferably vertically oriented, at least one noise absorbing panel that can be
mounted to said supporting posts, and a series of longitudinal guard rails mounted on
the side of the guard rail system facing the road.
A guard rail is provided at the lateral side of a road with the object of limiting personal
injuries by absorbing the energy of a vehicle veering off the road by catching and
slowing down the vehicle. Added to this primary function it is also found attractive to
provide the guard rails with noise reducing means.
Accordingly, a sound absorbing guard rail of such kind is known from EP 1 528 158 A1.
Herein the sound absorbing panels are made of aluminium or made transparent.
Another example of a guard rail with noise reducing measures is known from WO
2010/018028 A1, where a perforated plate is provided behind the guard rail beam.
In order to ensure road safety and to reduce the risk of personal injuries it is required
that a guard rail must be able to absorb the impact of a collision without disintegrating.
This requirement is also applicable to the noise reducing means. This requirement is to
avoid flying objects and/or sharp fractures which can cause severe personal injuries in
case of a collision. In the guard rails with noise-reducing measures mentioned above,
the casing in aluminium or transparent materials, such as glass or plastic, is brittle,
costly and may not withstand a vehicle impact without breaking apart.
By providing noise-reducing panels described above, the risk of disintegrating the
panel during an impact is considered too high and it is therefore an object of the
present invention to provide a guard rail with noise reducing means which is can
withstand the impact of a vehicle colliding with the guard rail.
According to the invention, this object is achieved by a guard rail of the initially
mentioned kind, wherein the noise absorbing panel comprises a noise absorbing
material board which is encased in an energy absorbing material provided with2
openings. Such an energy absorbing material provided with openings can be formed by
a mesh, a grid or a perforated material.
By the invention it is found advantageous that 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. However, it is realised that 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.
In the preferred embodiment of the invention, 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. Depending on the
design of the stretch metal netting it is possible to provide different stretch behaviour in
respective stress directions. E.g. 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. In those directions, where the stretch metal netting
provides a higher stress resistance, 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. Braking of the panels in any situation, in particular in a crash-
situation, is to be avoided.
Moreover, in addition to the mechanical behaviour of the netting made of stretch-metal,
in particular in a stress situation, such a material can also provide additional beneficial
optical and/or mechanical effects. The stretch metal may provide a surface structure
with different groups of surfaces which are intentionally oriented into a particular3
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. Moreover, 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.
As an alternative to the stretch metal netting, the energy absorbing material can be
formed of perforated metal sheets, multi-slit metal sheets, plastic nets, fibre reinforced
plastic or rubber material, etc.
Besides that the mineral wool fibre board, and more preferably a stone wool material,
has very good noise-absorbing characteristics, another advantage by in particular
stone wool as the material is that this material fire-resistant. The energy absorbing
material, e.g. the stretch-metal netting provides protection of the mineral wool and can
further contribute to the energy absorption at an impact due to a collision into the guard
rail and the energy absorbing material, e.g. stretch-metal netting also ensures that the
sound absorbing panel does not disintegrate at such an impact. This synergy between
the mineral wool fibre board and the energy absorbing material, e.g. stretch-metal is
advantageous and results in an improved noise absorbing panel in a guard rail, which
also meets the requirements concerning impact absorption and avoids disintegration at
an impact with a vehicle.
By the term stretch-metal netting is meant an expanded metal sheet, which is made by
a process of slit and stretch. The process may involve a precision die which slits and
stretches the sheet material in a single operation. Expanded metal is manufactured
through cutting and expanding a solid sheet of metal in special machines. The
machines cut and stretch the metal, expand it to a seamless mesh without joints. The
production contains no welded joints and no woven threads, which contributes to the
unique qualities of expanded metal. The mesh that is produced after expansion of the
cut metal gives the material an excellent carrying capacity.4
The material is then processed through a set of rollers, which adjusts the final
thickness. The stretch-metal in the netting is a ductile metal capable of absorbing
energy while being plastically deformed.
Preferably, the stretch-metal is galvanised steel. This is advantageous as it is weather
resistant and inexpensive to produce and very ductile and deformable by deforming the
mesh structure of the stretch metal netting when impacted. By galvanising the
stretched metal sharp edges will also be rounded. However, it is by the invention
realised that other types of protective coatings, such as plastic coating, paint or the like,
may be used.
As an alternative or as a supplement to stretch-metal, the energy absorbing mesh
could be a perforated metal sheet, a plastic netting or the like and/or a combination
thereof, encasing said noise absorbing material board.
In an embodiment, the netting is a panel which encloses at least the main sides and
the top side of the mineral wool fibre board. Preferably, the encasing is made from the
stretch-metal netting panel which is bent into a box-like shape around the mineral wool
fibre board and with mounting panels provided at each of the end sides.
By the invention it is realised that the stretch-metal netting panel may be produced with
non-stretched areas at each of the end sections for receiving the mounting panels at
each end for mounting the sound absorber to the supporting posts. Hereby, any sharp
edges or pointy ends in the netting structure may be avoided, thereby reducing any risk
of personal injuries to persons when handling the noise absorbing panel or during a
collision with the guard rail. Moreover, as the noise absorbing panel may be installed in
cities e.g. at parapets, this feature of the invention prevents the risk of injuring
pedestrians or cyclists.
The noise absorbing panel is preferably approx. 90 cm in height and approx. 260 cm in
length. This means that the panels may fit between posts in the usual guard rail
structure designs. Alternatively, the panels may be positioned behind the post, as
viewed from the traffic way, wherein a pair of two consecutive posts can be arranged in
a distance of approx. 1 m, 1.3 m, 2 m or 4 m, respectively. However, any dimensioning
of the noise absorbing panel is encountered by the present invention. In particular, it is5
preferred to provide noise absorbing panels in predetermined standardized dimensions
which match to the usual pre-confectioned guardrail sets for different applications. By
the invention it is realised that the panels may alternatively also be mounted in front of
the posts, i.e. between the posts and the guard rail. According to one embodiment of
the invention, the panels are not directly interconnected or mechanically fixed to one
another. Instead, they are mounted to the posts or the guard rail and arranged next to
one another without a mutual fixation. In other instances, the panels can be
mechanically connected.
In preferred embodiments, the mineral wool fibre board may also be provided with a
density within the range of 60-150 kg/m3, preferably 80-120 kg/m3, more preferably 80
100 kg/m3. Hereby, noise absorbing panels are provided in a size which is easy to
handle during mounting.
In an embodiment, the board is preferably provided with a protective fabric on its road
facing side. Hereby, the mineral fibre board is protected from salt, dirt and the like from
the road. The fabric may be a fleece, i.e. a non-woven fabric, which is weather and UV
resistant ensuring a long lifetime of the sound absorbing panel.
In addition to this feature, it is possible to provide the protective fabric with a structured
surface having different appearances depending on the perspective. Thereby it is
possible to provide optical effects depending on an actual line of vision. For example,
the fleece and thereby the noise absorbing panel may reflect incident light more or less
intensely depending on the actual incident angle. It is also possible to provide the
protective fabric with particular light absorbing effects such that it has a different colour
depending on the actual incident angle of light or line of vision. Thereby, the fleece may
reflect light when illuminated from one driving direction of a traffic way and fully or
partially absorb or deflect light when illuminated from the other driving direction of said
traffic way. Besides design features, this feature may also provide functional benefits
when the sound absorbing panel is installed next to traffic way.
By the present invention, it is found advantageous that the noise absorbing panel is
provided in either a planar configuration or a curved configuration. Another advantage
of the stretch-metal netting encasing the mineral fibre board is also that the stretch
metal netting is manually deformable so that the noise panel is bendable into a6
preferred curved shape. As an alternative, if using more rigid less bendable panels,
shorter panels can be used and arranged in a polygonal course for an installation at
curved traffic ways.
In an embodiment of the invention, the guard rail is made of a beam, preferably made
of a steel profile in a predetermined cross-sectional shape. The beam may be provided
with sound reducing means, such as one or more sections of perforations.
As an alternative to a profile beam, the guard rail could be a tube or a wire.
According to a further embodiment of the present invention, the noise absorbing panel
can be provided at the respective axial end portions with end profiles. Such end profiles
may have I-, H-, U- or C- shape. Using end profiles with I-, H-shape allows a
connection of two consecutive noise absorbing panels which can be introduced in the
respective recesses provided by this shape profile. U- or C- shaped profiles can be
used as end profiles of respective noise absorbing panels in case no further noise
absorbing panel is to be connected.
According to a further embodiment of the invention, end portions of noise absorbing
panels can be at least partially covered by cover elements. Those cover elements can
be formed from material which is elastically deformable and which has good noise
absorbing characteristics, e.g from rubber material. It is possible to fix such singular
elements to the energy absorbing mesh material on both sides of the noise absorbing
panel, respectively. As an alternative, it is possible to provide cover elements which
cover an end portion of the noise absorbing panel by surrounding or encompassing this
end portion partially or completely. The cover element can be fixed by additional fixing
means or it can be clamped to the noise absorbing panel. Holding ribs increasing
friction or providing a form fit can be formed to the cover elements in order to engage
with the noise absorbing panel, in particular with the end portions of the energy
absorbing mesh material. The cover element can provide an elastically deformable
structure, preferably rounded, in the center of the end face which can be brought in
contact with the corresponding elastically deformable structure at an opposing cover
element of an approximate noise absorbing panel. The elastically deformable structure
can be formed by a rounded projection integrally formed within the cover, e.g. with a
rounded projection surface. This allows to compensate tolerances when mounting or7
assembling the system and moreover provides additional noise absorbing
characteristics also in the interfaces between two approximate noise absorbing panels.
In the following the invention is described in more detail with reference to the
accompanying drawings, in which:
Fig. 1 is a schematic perspective view of a sound absorbing guard rail system
according to a first embodiment of the invention;
Fig. 2 is a schematic front view of said guard rail system of the first embodiment of the
invention,
Fig. 3 is a side view thereof, and
Fig. 4 is a top view thereof;
Fig. 5 is a schematic perspective view of a sound absorbing guard rail system
according to a second embodiment of the invention, and
Fig. 6 is a schematic front view thereof;
Fig. 7 a)-c) is a series of cross-section views illustrating the absorption of an impact by
a guard rail system according to the invention;
Figs. 8-10 are cross-section views of three embodiments of a noise absorbing panel
according to the invention;
Figs. 11-14 are cross-section views of elements of each of said three embodiments;
Fig. 15 is a detailed front view of a preferred embodiment of a stretch-metal netting
according to a preferred embodiment of the invention; and
Fig. 16 is a side view of the stretch-metal netting of fig. 15;
Fig. 17 is a schematic perspective view of an assembly profile for use between two
adjacent noise-absorbing panels;
Fig. 18 is a front view of a guard rail beam according to an embodiment of the invention
with areas of perforations;
Fig. 19 is a detailed perspective view of the beam of fig. 18; and
Fig. 20 is a cross-sectional view thereof;
Figs. 21 and 22 are views of a second embodiment of a guard rail beam; and
Figs. 23 and 24 are views of a third embodiment of a guard rail beam;
Fig. 25 and 26 are two cross-sectional shapes of guard rail beams;
Figs. 27-30 are schematic views of different perforation patterns for the perforations in
the guard rail beams of the invention; and8
Figs. 31-39 show different embodiments for designs for end elements covering end
surfaces of noise absorbing panels.
With reference to figures 1 to 4, a first embodiment of a sound absorbing guard rail
system according to the invention is shown. The guard rail system is installed at a
lateral or median side of a road 2 and comprises a series of vertically oriented
supporting posts 4. A series of noise absorbing panels 6 are mounted to one side of
the supporting posts 4 facing away from the road and a series of longitudinal guard
rails 8 are mounted on the other side of the posts 4 facing the road 2. Between the
noise absorbing panels 6 assembly profiles 14 (see figures 1 and 2) are provided to
ensure the noise absorbing panels 6 are suitably positioned and aligned.
The noise absorbing panel 6 comprises a noise absorbing material board 10 which is
encased in an energy absorbing mesh 12 (see fig. 3).
In figures 5 and 6 a second embodiment of a sound absorbing guard rail system
according to the invention is shown. According to this embodiment, the guard rails 8
are provided with perforated sections 81, 82 to further increase the sound absorbing
characteristics of the guard rail system.
In figures 7 a) to c) the absorption of an impact by a guard rail system according to the
invention is shown. As vehicle comes from the road 2 and collides with the guard rail 8,
as indicated by the arrow in the figures, the posts 4 deflects at ground level and the
noise absorbing panel 6 is tilted backwards, i.e. away from the road 2, as well as
deformed as the energy in the impact is absorbed in this deformation of the noise
absorbing panel 6. As the energy is taken out of the impact the guard rail 8 breaks
away from the posts 4 as shown in fig. 7 c).
Three embodiments of the noise absorbing panel 6 are shown in figures 8-10.
Common for these three embodiments is that a noise absorbing material board 10 is
encased in an energy absorbing mesh 12. The material of the noise absorbing material
board 10 is preferably a mineral fibre wool, and in particular stone wool material. This
material has good sound absorbing characteristics just as the material is fire resistant
and the noise absorbing panel 6 made of stone wool can thereby contribute to that the9
guard rail system can prevent any fire from spreading in case a fire occurs in relation to
a road accident with or without vehicle impact in the guard rail.
Protective profiles 16, 16’, 16” are provided between the noise absorbing material
board 10 and the energy absorbing mesh 12. In fig. 11 the noise absorbing material
board 10 is shown alone and in figures 12-14 the three different designs of the
protective profiles 16, 16’, 16” are shown. The protective profile 16, 16’ or 16” may be
made of a transparent or non-transparent polymeric material, such as polypropylene,
polycarbonate or the like.
As mentioned above, the noise absorbing material board 10 is encased in an energy
absorbing mesh 12. This mesh 12 is provided as a netting and is preferably made of
stretch-metal or also called expanded metal. Such a netting of expanded metal is
manufactured through cutting and expanding a solid sheet of metal in special
machines. The machines cut and stretch the metal, expand it to a seamless mesh
without joints. The mesh is hereby made up by ribs 12’ and rhombus-like shaped
openings 12” as shown in figures 15 and 16.
The mesh 12 of expanded metal is advantageous as this type of mesh is highly
deformable without breaking and can therefore absorb a high amount of energy in case
of an impact and at the same time prevent the noise absorbing material 10 encased in
the mesh 12 from being disintegrated and scattered around the in the event of a
vehicle impact of the guard rail system. The expanded metal mesh is formed such that
it is more deformable in the longitudinal direction along the road than in the vertical
direction. The expanded metal mesh 12 is preferably bent into shape so as to form
cover for the front and back sides of the noise absorbing board 10 as well as at least
the top side. Preferably, the mesh 12 is also formed so it covers at least a portion of the
bottom side of the noise absorbing board 10.
As mentioned in relation to figures 1 and 2, an assembly profile 14 is provided between
the noise absorbing panels 6. In fig. 17 an embodiment of the assembly profile 14 is
shown. The profile 14 is made as an H-profile with two exterior flanges 142 and a web
flange 144 therebetween. Hereby, two receiving slots 146 are formed on each side of
the web flange 144 for receiving the ends of two neighbouring noise absorbing panels
6. Alternatively two U-profiles, or Z-Profiles can be used.10
In the following figures 18-30 various embodiments of the guard rail beams 8 are
illustrated. The guard rail beams 8 are formed from a sheet of metal which is bent into
a desired cross-sectional shape. In the embodiment shown in figures 18-20, the guard
rail beam 8 is shaped with upper and lower longitudinal flange portions facing the road
and a central flange portion therebetween. The upper and lower flange portions are
provided with perforated sections 81 and the central flange portion is also provided with
a perforated section 82. Mounting holes 80 are provided at least at the end portions of
the beams 8.
In figures 21 and 22 another embodiment is shown of the beam design. This second
design differs from the design shown in figs. 18-20 by having non-perforated sections
83 along the beam 8.
In figs. 23-24, yet another variant of the design of the perforations is shown, where only
areas 84 around the mounting holes 80 are non-perforated.
Figures 25 and 26 show cross-sections of two alternative shapes of the guard rail
beam 8 relative to the shape shown in fig. 20, which could be used for the road-facing
guard rail beams 8 in a guard rail system according to the invention.
The perforations may be provided in the guard rail beams 8 with different patterns. In
figures 27-30 some different perforation patterns are shown.
Figure 31 shows a detailed view of an end region of a noise absorbing panels 6 as
described above. At the end region of the noise absorbing panel 6, two rubber
elements 200 are fixed to the edges of the energy absorbing mesh material 12. Each of
the rubber elements 200 in cross-section provides a profile with a U-shaped receiving
part 202 with rib-like projections 204 and 206. Moreover, each of the rubber elements
200 has a hollow oval ring part 208. The rubber elements 200 are fixed to the free edge
of the mesh material 12 by means of the receiving parts 202, wherein the rib-like
projections 204 and 206 engage the mesh material 12 in order to retain the rubber
elements 200 on the free edge of the mesh material 12. The hollow oval ring parts 208,
which can be elastically deformed, project from the front surface 210 of the noise
absorbing panel 6. Thereby, the rubber elements 200 provide a noise damping and11
mechanically cushioning interface to an approximate wall element or to another noise
absorbing panel 6 formed with corresponding rubber elements 200. Moreover,
tolerances can be compensated thereby.
It is to be added that the noise absorbing panel 6 also shows an additional protection
layer 212 formed between the noise absorbing material board 10 and the energy
absorbing mesh material 12. This additional protection layer 212 can be provided for
protecting the noise absorbing material board 10 from dirt, water, or other external
influences. Moreover, it can provide optical effects, e.g. particular reflection effects or
light absorbing effects depending certain angular ranges. This additional protection
layer can be provided in each embodiment as described above, independent from
other structural features described.
Figure 32 shows an alternative embodiment for the design of an end cover design of a
noise absorbing panel 6. The noise absorbing panel 6 at its free and is provided with a
cover 220 formed from rubber material. The cover has bent edge regions 222 which
encompass the free ends of the noise absorbing panel 6 and are held by elastic
deformation and friction to the end regions of the energy absorbing mesh material 12.
Fig. 33 shows an embodiment for another cover 230 according to the invention which
basically corresponds to the embodiment as described in regard to figure 32. Figure 35
additionally shows how two opposing noise absorbing panels 6 and 6’ are arranged
against one another equipped with covers 230, respectively. Moreover, figure 36
additionally shows a perspective view of the cover 230. According to this embodiment,
the cover 230 has basically the same shape as shown in figure 32 in regard the cover
220 and it is also formed from elastically deformable material, e.g. rubber. Additionally,
the cover 230 provides in its central region a rounded projection 232 with a hollow
interior 234, which makes the rounded projection 232 elastically deformable. The
general shape of the cover 230 is adapted to the geometry of the end side of a noise
absorbing panel 6, as can be seen in figure 36. When fixed onto the end of two
opposing noise absorbing panels 6 and 6’, as shown in figure 35, the two
corresponding rounded projections 232 and 232’ of the respective covers 230 and 230’
contact one another and under elastic deformation provide a tight engagement of the
two end covers 230 and 230’. This allows to compensate tolerances and provides a12
tight connection and additional noise damping effects also in the interface between two
approximate noise absorbing panels 6 and 6’.
Figure 34 shows another embodiment which is based on the embodiment according to
figure 33. The end cover 240 corresponds in its shape to the end cover 230 as
described above, i.e. it also has a rounded projection 242 with a hollow interior 244. In
the interior of the projection 242 a partition wall 246 is provided extending from the
inner surface of the projection 242 into the noise absorbing material board 10. The
partition wall 246 additionally stabilizes the structure of the projection 242.
Figure 37 shows a further embodiment which is also based on the embodiment
according to figure 33. In this embodiment, in the central area of the cover 250 the
projection is formed by a closed ring-like structure 252 as can be seen in the cross
section with a hollow interior 254. The cover 250 is plugged onto the end portion of the
noise absorbing panel 6 such that a part, in the example about one fourth of the
circumference, of the inner portion 256 of the closed ring-like structure 252 engages
the front surface of the noise absorbing material board 10 and protrudes into it to a
certain degree. This further stabilizes the cover 250 and allows to compensate
tolerances. As can be seen in figure 39, the shape of the cover 250 is similar to the
shape as already described in regard to figure 36.
Finally, as can be seen in figure 38, this embodiment provides a similar interface
between two opposing or approximate noise absorbing panels 6 and 6’ wherein the two
ring-like structures 252 contact each other under a demanded elastic deformation in
order to provide a tight fit with beneficial noise dampening and cushioning
characteristics.
Above, the invention is described with reference to some currently preferred
embodiments. However, it is realised that other embodiments may be provided without
departing from the scope of the invention as defined in the accompanying claims.13 264194/2
Claims (19)
1. A guard rail system for installation at a lateral or median side of a road, said guard rail system comprises a series of supporting posts, that are preferably vertically oriented, at least one noise absorbing panel that can be mounted to said supporting posts, and a series of longitudinal guard rails mounted on the side of the guard rail system facing the road, wherein said noise absorbing panel comprises a noise absorbing material which is encased in an energy absorbing material provided with openings, wherein the energy absorbing material is a stretch-metal netting encasing said noise absorbing material.
2. A guard rail system according to claim 1, wherein the noise absorbing material is a mineral wool fibre material preferably provided as a 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.
3. A guard rail system according to claim 1 or 2, wherein said energy absorbing material provided with openings comprises a mesh, a grid or a perforated material.
4. A guard rail system according to any one of the preceding claims, wherein the stretch-metal is a ductile metal capable of absorbing energy while being plastically deformed.
5. A guard rail system according to any one of the preceding claims, wherein the stretch-metal is galvanised steel.
6. A guard rail system according to any one of the preceding claims, wherein the energy absorbing material is a perforated metal sheet, a plastic netting or the like and/or a combination thereof, encasing said noise absorbing material.
7. A guard rail system according to any one of the preceding claims, wherein the netting is a panel which encloses at least the main sides and the top side of the noise absorbing material.14 264194/2
8. A guard rail system according to any one of the preceding claims, wherein the encasing is made from stretch-metal netting panel which is bent into the box-like shape around the noise absorbing material board and with mounting panels provided at each of the end sides of the stretch-metal netting panel.
9. A guard rail system according to any one of the preceding claims, wherein the encasing is made from stretch-metal netting panel which is cast into an insulation material made by a wet-felt process and with mounting panels provided at each of the end sides of the stretch-metal netting panel.
10. A guard rail system according to any one of the preceding claims, wherein the stretch-metal netting panel is produced with non-stretched areas at each of the end sections for receiving the mounting panels at each end for mounting the noise absorbing panel to the supporting posts.
11. A guard rail system according to any one of the preceding claims, wherein said noise absorbing panel is approx. 90 cm in height and in length approx. 130 cm, approx. 260 cm. or approx. 520 cm or approx. 530 cm.
12. A guard rail system according to any one of the preceding claims, wherein the mineral wool fibre board is stone wool and provided with a density within the range of 60-150 kg/m3, preferably 80-120 kg/m3, more preferably 80-100 kg/m3.
13. A guard rail system according to any one of the preceding claims, wherein the noise absorbing material is preferably provided with a protective fabric on its road facing side.
14. A guard rail system according to claim 13, wherein the protective fabric has a structured surface having different appearances depending on an actual line of vision.
15. A guard rail system according to any one of the preceding claims, wherein said noise absorbing panel is provided in a planar configuration or a curved or polygonal configuration.15 264194/2
16. A guard rail system according to any one of the preceding claims, wherein the noise absorbing panel is provided at the respective axial end portions with end profiles, wherein the end profiles may have I-, H-, U- or C- shape.
17. A guard rail system according to any one of the preceding claims, wherein the guard rail is made of a beam, preferably made of steel in a predetermined cross sectional shape.
18. A guard rail system according to any one of the preceding claims, wherein the beam is provided with sound reducing means, such as one or more sections of perforations.
19. A guard rail system according to any one of the preceding claims, wherein the guard rail is a tube or a wire. Roy S. Melzer, Adv. Patent Attorney G.E. Ehrlich (1995) Ltd. 11 Menachem Begin Road 5268104 Ramat Gan
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16178822 | 2016-07-11 | ||
PCT/EP2017/067073 WO2018011074A1 (en) | 2016-07-11 | 2017-07-07 | A sound absorbing guard rail system |
Publications (2)
Publication Number | Publication Date |
---|---|
IL264194A true IL264194A (en) | 2019-02-28 |
IL264194B IL264194B (en) | 2022-04-01 |
Family
ID=56411439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL264194A IL264194B (en) | 2016-07-11 | 2019-01-10 | A sound absorbing guard rail system |
Country Status (13)
Country | Link |
---|---|
US (1) | US20190309489A1 (en) |
EP (1) | EP3482001B1 (en) |
JP (1) | JP2019520500A (en) |
KR (1) | KR20190027870A (en) |
CN (1) | CN109563689A (en) |
BR (1) | BR112019000659A2 (en) |
CA (1) | CA3030464C (en) |
DK (1) | DK3482001T3 (en) |
ES (1) | ES2831420T3 (en) |
IL (1) | IL264194B (en) |
PL (1) | PL3482001T3 (en) |
RU (1) | RU2762094C2 (en) |
WO (1) | WO2018011074A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112095519A (en) * | 2020-09-17 | 2020-12-18 | 邬剑娜 | Environment-friendly road is with median of making an uproar that falls |
CN114059841B (en) * | 2021-11-25 | 2023-07-21 | 中化学建设投资集团安徽工程有限公司 | Building encloses fender with sound absorbing effect |
CN114438914B (en) * | 2022-02-10 | 2023-03-10 | 盐城工学院 | Sound insulation screen capable of effectively reducing noise pollution of high-speed rail |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358090A (en) * | 1979-01-23 | 1982-11-09 | Arbed S.A. | Sound barrier for highway and other traffic |
WO2010018028A1 (en) * | 2008-08-12 | 2010-02-18 | Thomas Willum Jensen | A guard rail including noise-reducing measures |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1717697A1 (en) * | 1989-11-02 | 1992-03-07 | Грузинское Государственное Дорожное Научно-Производственное Объединение "Груздорнаука" | Motorway fencing |
JPH10338913A (en) * | 1997-06-10 | 1998-12-22 | Nippon Kokan Light Steel Kk | Protection fense having soundproof function |
JP2000225322A (en) * | 1998-11-30 | 2000-08-15 | Yoshitaka Suga | Wall structure for removing air pollutant |
JP2002201731A (en) * | 2000-12-27 | 2002-07-19 | Sumitomo Metal Steel Products Inc | Sound insulating wall |
JP2003041520A (en) * | 2001-07-30 | 2003-02-13 | Nippon Kokan Light Steel Kk | Anti-glare panel |
JP4076121B2 (en) * | 2001-08-10 | 2008-04-16 | 株式会社栗本鐵工所 | Guard fence for median strip |
ITRM20030188U1 (en) | 2003-10-29 | 2005-04-30 | Autostrade S P A Ora Atlantia S P A | SAFETY AND ANTI-NOISE BARRIER. |
JP2005334943A (en) * | 2004-05-27 | 2005-12-08 | Wonder Giken Kk | Expanded metal surface material and fence |
JP2007043999A (en) * | 2005-08-11 | 2007-02-22 | Amii Solutions:Kk | Animal invasion protection fence and method for constructing the same |
WO2007132964A1 (en) * | 2006-05-15 | 2007-11-22 | Ki Soung Park | Soundproofing board |
JP4223535B2 (en) * | 2007-04-23 | 2009-02-12 | 日鐵住金建材株式会社 | Low-rise fence structure and connection bracket |
RU94675U1 (en) * | 2010-03-12 | 2010-05-27 | Общество с ограниченной ответственностью "РУСКЛИМАТ" | FAN HEATER |
RU98018U1 (en) * | 2010-06-17 | 2010-09-27 | Виктор Петрович Лутков | WALL PANEL |
US20190234031A1 (en) * | 2016-07-11 | 2019-08-01 | Rockwool International A/S | A noise absorbing panel for use in a sound absorbing guard rail system |
EP3737796B1 (en) * | 2018-01-10 | 2023-08-02 | Rockwool A/S | Cable safety fence with noise absorbing panel |
-
2017
- 2017-07-07 ES ES17739941T patent/ES2831420T3/en active Active
- 2017-07-07 WO PCT/EP2017/067073 patent/WO2018011074A1/en unknown
- 2017-07-07 CN CN201780043482.0A patent/CN109563689A/en active Pending
- 2017-07-07 RU RU2019102899A patent/RU2762094C2/en active
- 2017-07-07 DK DK17739941.7T patent/DK3482001T3/en active
- 2017-07-07 EP EP17739941.7A patent/EP3482001B1/en active Active
- 2017-07-07 BR BR112019000659A patent/BR112019000659A2/en not_active Application Discontinuation
- 2017-07-07 JP JP2019500618A patent/JP2019520500A/en active Pending
- 2017-07-07 US US16/316,945 patent/US20190309489A1/en not_active Abandoned
- 2017-07-07 CA CA3030464A patent/CA3030464C/en active Active
- 2017-07-07 PL PL17739941T patent/PL3482001T3/en unknown
- 2017-07-07 KR KR1020197003767A patent/KR20190027870A/en not_active Application Discontinuation
-
2019
- 2019-01-10 IL IL264194A patent/IL264194B/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358090A (en) * | 1979-01-23 | 1982-11-09 | Arbed S.A. | Sound barrier for highway and other traffic |
WO2010018028A1 (en) * | 2008-08-12 | 2010-02-18 | Thomas Willum Jensen | A guard rail including noise-reducing measures |
Also Published As
Publication number | Publication date |
---|---|
KR20190027870A (en) | 2019-03-15 |
CA3030464A1 (en) | 2018-01-18 |
EP3482001A1 (en) | 2019-05-15 |
IL264194B (en) | 2022-04-01 |
DK3482001T3 (en) | 2020-11-16 |
CA3030464C (en) | 2023-08-29 |
PL3482001T3 (en) | 2021-03-08 |
RU2019102899A3 (en) | 2020-10-16 |
CN109563689A (en) | 2019-04-02 |
RU2019102899A (en) | 2020-08-11 |
BR112019000659A2 (en) | 2019-07-02 |
EP3482001B1 (en) | 2020-10-07 |
WO2018011074A1 (en) | 2018-01-18 |
RU2762094C2 (en) | 2021-12-15 |
US20190309489A1 (en) | 2019-10-10 |
JP2019520500A (en) | 2019-07-18 |
ES2831420T3 (en) | 2021-06-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL264194A (en) | A sound absorbing guard rail system | |
EP3482002B1 (en) | A noise absorbing panel for use in a sound absorbing guard rail system | |
EP3737796B1 (en) | Cable safety fence with noise absorbing panel | |
GB2433285A (en) | Vehicle restraining fence for a building | |
CN212983653U (en) | Sound barrier concave-convex overlapping system | |
CA2926113C (en) | Improved parking barrier system and post | |
KR20090015672A (en) | Soundproofing panel | |
KR200390596Y1 (en) | Guardrail construction having an anti-fall and shock absorbing function | |
RU156212U1 (en) | NOISE PROTECTION | |
JP3131624U (en) | Translucent sound insulation wall | |
KR102475172B1 (en) | Transparent soundproof plate to prevent tide collision | |
EP0969149A2 (en) | Safety barrier for road embankments | |
KR100930101B1 (en) | Soundproofing wall with noise reducer | |
KR100633384B1 (en) | Establishment structure of soundproofing wall for road in pro-environment | |
KR100187916B1 (en) | Fender net also sound-proof net | |
KR101164944B1 (en) | Reinforcing member for a guardrail | |
CN115387254A (en) | Permeable sound barrier with anti-falling structure | |
CN114075813A (en) | Concave-convex overlapping system suitable for metal sound barrier | |
CN113981844A (en) | Sound barrier concave-convex overlapping system | |
EP2746461B1 (en) | Crash barrier bracket | |
KR200380491Y1 (en) | sound proofing for road | |
JP3565782B2 (en) | Soundproof wall unit | |
CN114075814A (en) | Concave-convex overlapping system suitable for non-metallic sound barrier |