EP0648897A1 - Schallschutzwand - Google Patents

Schallschutzwand Download PDF

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Publication number
EP0648897A1
EP0648897A1 EP94402313A EP94402313A EP0648897A1 EP 0648897 A1 EP0648897 A1 EP 0648897A1 EP 94402313 A EP94402313 A EP 94402313A EP 94402313 A EP94402313 A EP 94402313A EP 0648897 A1 EP0648897 A1 EP 0648897A1
Authority
EP
European Patent Office
Prior art keywords
noise
post
posts
panels
panel
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.)
Granted
Application number
EP94402313A
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English (en)
French (fr)
Other versions
EP0648897B1 (de
Inventor
Bernard Libert
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.)
Gpri SA
Original Assignee
Gpri SA
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Filing date
Publication date
Application filed by Gpri SA filed Critical Gpri SA
Publication of EP0648897A1 publication Critical patent/EP0648897A1/de
Application granted granted Critical
Publication of EP0648897B1 publication Critical patent/EP0648897B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E01F8/0011—Plank-like elements
    • 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
    • E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers

Definitions

  • the present invention relates to an anti-noise wall intended to attenuate the perception of a source of noise in a protected area, for example a residential area.
  • sheet piles of the finished work can be painted or decorated so that the wall harmonizes with the environment or merges into it.
  • the sound propagation wave is for the essentials reflected on the noise barrier built in concrete or by assembling metal sheet piles and it is returned in the direction of the source which is at its origin, sometimes up to a kilometer beyond this source.
  • the bearing structure of such a wall is then ensured either by precast concrete profiles, or by pillars of fire-galvanized steel, or even by hollow posts, the part of which is planted in the ground is provided with orifices through which concrete injected into the ground flows, in the entire area surrounding the post, from inside the post, the concrete having been poured under pressure into the post from a nozzle placed at the top of it.
  • Patent DE-A-42 12 172 describes this latter technique.
  • the present invention proposes to remedy all of the aforementioned drawbacks. It aims to optimize the installation of an anti-noise wall intended to attenuate the perception of a source of noise in an area to be protected, regardless of the location and the nature of the installation floor.
  • the invention recommends the use of absorbent panels, of wood or of BBS type, therefore not self-supporting, the bearing structure of such panels being obtained by the provision of thin metal posts, therefore robust but at the same time lightweight, which can be installed in the ground anywhere, without the need to use heavy and bulky equipment, so fast installation posts - which can respond to any emergency work - and more reliable , robust and inexpensive.
  • the present invention firstly relates to an anti-noise wall composed of acoustic absorption elements, constituted by panels made of an absorbent material, for example of wood or of BBS type, each of said absorbent panels being associated with a rigid support, and of a supporting structure supporting said elements and consisting of a plurality of posts arranged at substantially regular intervals along a line substantially parallel to the track, rail or road, to be insulated, each of said posts being provided with staples which make it possible to support said absorbent panels and whose height position on the post is adjustable, said wall rising at the edge of the track to a height greater than the distance separating the noise source from the ground in which it is located, and being characterized in that that the rigid support associated with each panel is constituted by a profile, preferably metallic, comprising a flat core provided a loop along each of its two horizontal longitudinal edges, the upper loop of the support of each panel being able to cooperate by engagement, by horizontal longitudinal displacement, with the lower loop of the support of the panel or panels of the upper level.
  • the supporting structure consists of posts guarantees the speed, simplicity and low cost of the implementation of such a structure as well as the adaptability of said structure to all types of terrain, consecutive to its lightness, on the one hand, and to its mode of installation which does not call for any particular equipment, on the other hand.
  • the width of the rigid support associated with each absorbent panel is at least equal to the height of said panel.
  • the rigid support associated with each absorbent panel is disposed on that of the two large faces of the panel intended to be placed opposite the plane formed by the line of posts.
  • the absorbent panels are rectangular and assembled longitudinally to each other by interlocking.
  • the absorbent panels are placed horizontally in the direction of their length and they are staggered.
  • This horizontal arrangement of the rectangular panels helps to eliminate any differences in slope of the terrain on which the noise barrier is built.
  • the panels of the same horizontal line are simply abutted, that is to say that there is no imperative as to the fixing between them of such absorbent panels situated at the same level. Because of this latter freedom, it is easily understood that it is possible to ensure the continuity of the noise barrier according to the invention exactly in parallel with the track to be insulated, both in its strictly rectilinear parts as in the curvilinear parts, namely in the wide bends made by road or railways.
  • two adjacent panels of the same horizontal line can be located in vertical planes which, between them, make an angle of a few degrees.
  • the arrangement of the staggered panels makes it possible to avoid the defect of "hinge effect" frequently encountered on all wall constructions in which, by construction obligation, all the panels are aligned in regular columns starting from the pillars concrete or steel.
  • each of said posts consists of a quadrangular tube open longitudinally on that of its faces which is turned towards the noise source, and the clips making it possible to fix the sound absorption elements on the post. in line with the opening of said post, so that said sound absorption elements are between the noise source and the line of posts.
  • each of said posts consists of a quadrangular tube open longitudinally on that of its faces which is furthest from the noise source, and the clips making it possible to fix the sound absorption elements on the post. are arranged in line with the opening of said post, so that the line of posts is between the noise source and said sound absorption elements.
  • each post is made in two parts, a hollow tubular base, inserted into the ground, and the post itself, the lower part of which is intended for be forcibly engaged in the base, is rectilinear and of an congruent external section and slightly less than the internal section of said base.
  • the upper part of the post which emerges from the base is advantageously of square or rectangular section, in the form of a C, the opening of this C being framed longitudinally by two returns, substantially of the same width, formed themselves. same of two wings, the first wings of these returns defining with the opening one of the four faces of the post and the second wings of said returns, which border the opening, being turned towards the inside of the post.
  • the supporting structure of the noise barrier to the aforementioned particularities is for all or part made up either of essentially vertical posts, or of vertical posts having a hanger at their top, or of vertical posts of which the whole part which emerges from the base is curved, or of inclined posts for all or part on the vertical.
  • each clip is shaped as an S, the free part of this S extending upward and being at its end folded back on itself, in the direction of the opening of the post to which the clip is subject, to form a pin, said free part of the S fixing the inside of its pin the end of the loop of the upper support which is associated with it and guiding and supporting from the outside of said pin the loop of the lower support which is attached to it also associated.
  • the wall according to the invention has staples which are inserted in the interlocked loops of the supports of two panels.
  • the noise barrier 5 must therefore absorb as much of the transmitted energy as possible.
  • index R its transmission weakening index
  • I1 is the acoustic intensity incident on the wall and I2 is the intensity transmitted by the wall.
  • TGV rail lines cause nuisance to residents over distances of up to one kilometer from tracks 12.
  • the noisy part of any TGV train 11 is located at the level of all the rolling parts of motor cars and wagons, that is to say up to a height 13 of one meter from the ground 2.
  • Each of the anti-noise walls comprises a supporting structure supporting acoustic absorption elements, said supporting structure consisting of a plurality of posts 16 arranged at substantially regular intervals along a line substantially parallel to the tracks 12.
  • the vertices of the two lines of posts 16 define the vertices of the two walls 15.
  • Each post 16 therefore rises above the ground 2 over a height H clearly greater than the distance h separating the noise sources 13 from the level of the tracks 12, c ' is to say clearly greater than one meter.
  • the top 17 of the latter is located at the bottom of the windows of the cars of the train 11 so that the passengers 18 of this train looking horizontally along the arrow marked by 19 do not have a vision hampered by the walls 15.
  • each post 116, 216, 316, 416, 516 of such a bearing structure belongs to a vertical plane which extends substantially perpendicular to the direction D of the wall, therefore to the direction of the tracks 12.
  • Each base 20 is for example formed by a tube of square section, tube whose internal dimension on each side is 102 millimeters.
  • the lower part 21 of the post 16 is congruent with the base 20, that is to say of the same square shape as said base; each side of this part 21 of the post 16 then has an overall dimension of 100 millimeters, so that this part 21 can be force-fitted into the base 20.
  • the base 20 is bevelled along 22 at its lower end, so that it can be more easily sunk into the ground 2.
  • Said base is, preferably also, provided, on its face parallel to the tracks 12 and closest to said tracks, of a plate 23 in the form of an isosceles trapezium, the large base of which is flush with the ground 2, the function of such a so-called "retaining plate” being to improve the resistance of the bearing structure to forces, in particular to the wind.
  • a second plate 24, of the same isosceles trapezoidal shape, the short sides of which converge downward, is associated with each base 20, near its end bevel 22, on the face opposite to that which is provided with the first retaining plate 23, in order to further improve the stress resistance characteristics of the bearing structure of the wall according to the invention.
  • Such bases are in themselves known and they are marketed under the brand "PROPICLO" .
  • the post proper both in its part 16 which emerges from the base 20 and in its part 21 which is forcibly engaged in said base, is open longitudinally, for example on that of its faces 25 which is turned towards the tracks 12
  • the post thus has a section in C, the opening 26 of this C being framed longitudinally by two returns, substantially the same width, themselves formed of two wings, the first wings 27 of these returns defining with the opening 26 said face 25 facing the source 13 and the second wings 28 of said returns, which border the opening 26, being turned towards the inside of the post ( Figure 6).
  • the bearing structure defined above supports panels made of an absorbent material, based in particular on wood, either pure wood, or and preferably of the BBS type.
  • Each absorbent panel 29 is preferably rectangular, and very elongated. Each of said panels is associated with a rigid support 30 disposed on that of its two large faces 31 intended to be placed opposite the plane formed by the line of posts 16 (116, 216, 316, 416, 516).
  • the assembly made up of such a panel 29 and of such a rigid support 30 which is associated with it is identified by 33 on the wall 15.
  • the rigid support 30 consists of a profile, of preferably metallic, the length of which is equal to that of the panel 29 and the width of which is at least equal to the height L of the said panel.
  • the section in question comprises a flat core 34 provided with a loop along each of its two horizontal longitudinal edges, the upper loop 35 being able to cooperate by engagement, by horizontal longitudinal displacement, with the lower loop 36 of the support 30 of the or sets 33 of the upper level.
  • the upper loop 35 will also be referred to as a "female” loop and the lower loop 36 will also be referred to as a "male” loop.
  • each post 16 of the wall 15, in its part which emerges from the ground 2, is provided with staples 37 whose position in height on the post is adjustable. These staples are shaped like an S and are arranged in line with the opening 26 of the post 16.
  • Each staple 37 shaped as S extends essentially upwards while being released from the post to which it is subject and, in its free part said staple is folded back on itself, at its end, in the direction of the opening 26 of the post, to form a pin 38.
  • Each clip 37 is fixed to the post 16 by the provision of a screw 39 with a particular head, the dimensions and the cut of which allow its engagement in the opening 26 of the post at C, then its blocking in rotation inside such a pole.
  • the head of such a device 39 is formed of a base whose width is slightly less than the width of the opening 26 and whose length is substantially less than the internal dimension. on the side of the C profile. The height of this base is less than the internal dimension of such a side reduced by the width of the second wings 28.
  • one of the two large faces of such a base is provided with two rectilinear grooves 40, capable of cooperating with the free edges 28 ′ of the second wings 28, and of a threaded rod 41 which extends orthogonally, substantially from the center of said face of the base.
  • the base can advantageously be slightly lower than in its two parts 40 'which border said grooves from the outside.
  • Each clip 37 is pierced with an orifice allowing the passage of this threaded rod 41, and the assembly consisting of a clip and a special screw 39 is completed with a washer 42 and a nut 43 whose thread is complementary to that of the rod 41.
  • the fastening of the clip 37 on the post is first obtained by the introduction of the head of the screw 39 into the opening 26, by its narrowest dimension (width), less than the width of said opening , then by the rotation (shown schematically by the arrows 47) at 90 ° of this head so that it occupies its normal operating position shown in Figure 6.
  • the base of the clip 37 substantially the same width as that of the side of the profile C, is then applied against the front face 25 of this profile 16, by progressive tightening of the nut 43 on the threaded rod 41.
  • the head of the screw 39 advances itself in the direction of this face 25 and the second wings 28 of the profile 16 penetrate the grooves 40, so that the head of the screw is this time locked in rotation.
  • the clip 37 is easily adjustable in height position.
  • the nut 43 is definitively tightened until the edges 40 ′ of the front face of the head of the screw 39 come to bear against the first wings 27 of the front face 25 of the C profile. Tightening is then effective.
  • each post 16 there is at the top of each post 16, on the front face 25 thereof, a hook 44 (FIG. 9), the top of which has two tabs 45 which penetrate the profile at C, behind the face 25 , on either side of the second wings 28, and the base of which forms a return 46 towards the front and upwards, capable of receiving the female loop 35 of a first assembly 33.
  • the assembly thus supported is presses by its lower part, that is to say by its male loop 36, against the face 25 of the post 16.
  • the internal width of the pin 38 is barely greater than the thickness of the sheet to from which said support 30 is profiled.
  • loops respectively lower and upper of any support are complementary in their shapes, and that two supports can thus snap into each other, by horizontal longitudinal displacement.
  • the said second set 33 When the second set 33 is in place on the first set, the said second set is fixed using a clip 37, repeating the operation seen previously, that is to say fixing from the inside of the pin 38 of this other clip 37 the end of the male loop 36 of the second set. The above operations are repeated for the third set 33 and for the following, until defining the last line of absorbent panels coming substantially at ground level 2.
  • assemblies 33 are integral with each other in the direction of the height, with however a degree of freedom around a horizontal axis 35-36, but that on the other hand such assemblies are independent of each other in the longitudinal direction, and that the panels 29 simply come to bear one behind the other by their vertical edges 48.
  • the hooks 44 constituting the attachment member of the upper assemblies 33 of the noise barrier according to the invention can be of any other nature and that they can, for simplification, be replaced by staples 37.
  • the hooks can also be of the first aforementioned type, and be two in number per post 16, the width of each hook 144 then being slightly less than the width of the wing 27 and the two legs 45 then making only one (Figure 9).
  • the assemblies 33 are either factory mounted or installed on site.
  • each panel 29 is offset by a third of its length relative to the panel which is immediately above it and relative to the panel which is immediately below it.
  • Such an arrangement has a pitch P which is equal to the length of a panel 29. Provision is therefore made for burying posts while respecting the same pitch P , it being specified here that in the event that the pitch of the posts is not respected exactly, the offset is easily caught up in that, in their longitudinal position, the panels can be more or less moved relative to the clips 37 which support them.
  • the invention is not limited to the mode of application any more than to the embodiments which have been mentioned and it is possible to conceive of various variants without thereby departing from its scope.
  • the example of application was given at the edge of a railway track, but it is obvious that a noise barrier of the same kind can be placed at the edge of a road or motorway track.
  • the rigid supports 30 are perforated at the level of their cores 34. Such perforations, illustrated in FIG. 10 by the references 50, reduce the weight of the assemblies 33, without harming their acoustic quality since the supports 30 do not participate in the absorption of sound.
  • the invention also applies to the construction according to which the opening 26 of each post 16 is provided on that of the four faces of the post which is furthest from the noise source.
  • the line of posts is then between the noise source and the sound absorption elements; it is therefore the residents who see only the absorbent panels of the constructed wall; the supporting posts 16 and the clips 37 which support the panels are invisible to the residents and are only visible to people traveling on the tracks to be isolated.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP19940402313 1993-10-14 1994-10-14 Schallschutzwand Expired - Lifetime EP0648897B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9312219 1993-10-14
FR9312219A FR2711155B1 (fr) 1993-10-14 1993-10-14 Mur anti-bruit.

Publications (2)

Publication Number Publication Date
EP0648897A1 true EP0648897A1 (de) 1995-04-19
EP0648897B1 EP0648897B1 (de) 1999-03-24

Family

ID=9451812

Family Applications (1)

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EP19940402313 Expired - Lifetime EP0648897B1 (de) 1993-10-14 1994-10-14 Schallschutzwand

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EP (1) EP0648897B1 (de)
DE (1) DE69417336D1 (de)
FR (1) FR2711155B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999058765A1 (de) * 1998-05-12 1999-11-18 Wolfgang Brunbauer Schallschutzeinrichtung
WO1999064682A1 (de) * 1998-06-10 1999-12-16 Peter Lorenz Aus fertigteilen aufgebaute lärmschutzkonstruktion
WO2000032876A1 (fr) * 1998-12-02 2000-06-08 Profilarbed S.A. Paroi acoustique
ES2145704A1 (es) * 1998-04-24 2000-07-01 Garces Jose Manuel Llaneza Nuevo apantallamiento acustico.
LU90325B1 (fr) * 1998-12-02 2000-07-18 Profilarbed Sa Paroi acoustique
EP1122362A1 (de) * 2000-02-03 2001-08-08 Frédy Feurer Verfahren zur Verkehrs-Luftschall-Dämpfung mittels Luftschall-Absorptions-Schichten
CN114164777A (zh) * 2021-11-29 2022-03-11 曹建枫 一种立交桥声屏障

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU201071U1 (ru) * 2020-05-26 2020-11-25 Общество с ограниченной ответственностью "Информационные технологии" (ООО "ИнфоТех") Устройство защиты от шума вагонного замедлителя сортировочной горки
RU204529U1 (ru) * 2021-03-19 2021-05-28 Общество С Ограниченной Ответственностью "Информационные Технологии" (Ооо "Инфртех") Устройство установки шумозащитных экранов на сортировочных горках

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2267603A1 (en) * 1974-04-11 1975-11-07 Profilafroid Sa Sound-absorbing panel - comprising sound-insulating blocks attached to metal support
US4143495A (en) * 1976-10-22 1979-03-13 Fa. Pass & Co. Sound-absorbing panel
CH659843A5 (en) * 1983-03-08 1987-02-27 Mannhart Martin Hoch & Tiefbau Noise-protection wall
FR2657903A1 (fr) * 1990-02-05 1991-08-09 Socarel Nouveau type de panneau en beton pour la realisation de murs anti-bruits.
DE9106804U1 (de) * 1991-06-03 1991-08-22 Koch Gmbh & Co. Kg, 5431 Nentershausen, De
DE4212172A1 (de) * 1991-05-23 1992-11-26 Hermann Claus Leichtbau-schallschutzkonstruktion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2267603A1 (en) * 1974-04-11 1975-11-07 Profilafroid Sa Sound-absorbing panel - comprising sound-insulating blocks attached to metal support
US4143495A (en) * 1976-10-22 1979-03-13 Fa. Pass & Co. Sound-absorbing panel
CH659843A5 (en) * 1983-03-08 1987-02-27 Mannhart Martin Hoch & Tiefbau Noise-protection wall
FR2657903A1 (fr) * 1990-02-05 1991-08-09 Socarel Nouveau type de panneau en beton pour la realisation de murs anti-bruits.
DE4212172A1 (de) * 1991-05-23 1992-11-26 Hermann Claus Leichtbau-schallschutzkonstruktion
DE9106804U1 (de) * 1991-06-03 1991-08-22 Koch Gmbh & Co. Kg, 5431 Nentershausen, De

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2145704A1 (es) * 1998-04-24 2000-07-01 Garces Jose Manuel Llaneza Nuevo apantallamiento acustico.
WO1999058765A1 (de) * 1998-05-12 1999-11-18 Wolfgang Brunbauer Schallschutzeinrichtung
WO1999064682A1 (de) * 1998-06-10 1999-12-16 Peter Lorenz Aus fertigteilen aufgebaute lärmschutzkonstruktion
WO2000032876A1 (fr) * 1998-12-02 2000-06-08 Profilarbed S.A. Paroi acoustique
LU90325B1 (fr) * 1998-12-02 2000-07-18 Profilarbed Sa Paroi acoustique
EP1122362A1 (de) * 2000-02-03 2001-08-08 Frédy Feurer Verfahren zur Verkehrs-Luftschall-Dämpfung mittels Luftschall-Absorptions-Schichten
CN114164777A (zh) * 2021-11-29 2022-03-11 曹建枫 一种立交桥声屏障
CN114164777B (zh) * 2021-11-29 2023-10-31 安平县佳旺五金丝网制品有限公司 一种立交桥声屏障

Also Published As

Publication number Publication date
FR2711155A1 (fr) 1995-04-21
FR2711155B1 (fr) 1999-06-04
DE69417336D1 (de) 1999-04-29
EP0648897B1 (de) 1999-03-24

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