EP0843045A1 - Panneau d'isolation acoustique - Google Patents

Panneau d'isolation acoustique Download PDF

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Publication number
EP0843045A1
EP0843045A1 EP97830612A EP97830612A EP0843045A1 EP 0843045 A1 EP0843045 A1 EP 0843045A1 EP 97830612 A EP97830612 A EP 97830612A EP 97830612 A EP97830612 A EP 97830612A EP 0843045 A1 EP0843045 A1 EP 0843045A1
Authority
EP
European Patent Office
Prior art keywords
panel
shell
layer
sound
uprights
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
EP97830612A
Other languages
German (de)
English (en)
Other versions
EP0843045B1 (fr
Inventor
Luigi Cicinnati
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.)
Metalmeccanica Fracasso SpA
Original Assignee
Metalmeccanica Fracasso SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metalmeccanica Fracasso SpA filed Critical Metalmeccanica Fracasso SpA
Priority to SI9730638T priority Critical patent/SI0843045T1/xx
Publication of EP0843045A1 publication Critical patent/EP0843045A1/fr
Application granted granted Critical
Publication of EP0843045B1 publication Critical patent/EP0843045B1/fr
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
    • E01F8/0047—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
    • E01F8/0011—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 acoustic insulating panel for insulating preferably open spaces from pollutant sound waves.
  • thin, elongated, substantially parallelepiped panels are known to be placed one on top of the other on edge to form a substantially vertical wall physically separating the noise source from the environment for protection.
  • Such panels are made of composite material, and are held in place one on top of the other between two uprights comprising longitudinal grooves engaged by lateral end portions of the panels. At assembly, the uprights therefore act as slideways for the panels, which, as they are inserted downwards, must be kept coplanar with the plane defined by the uprights.
  • Each panel comprises a substantially parallelepiped shell of a given thickness, normally made of zinc-plated painted sheet metal, and which acts a container for filler material, such as mineral wool or similar.
  • the shell is normally formed by assembling two half shells, mainly provides for acoustic insulation as opposed to the mainly sound-absorbing function of the filler material, and is normally closed at the ends by endpieces which fit loosely inside the grooves in the uprights. Assembly of the panels is a painstaking job, which is performed entirely at the factory.
  • the mass of the panels per unit of length is considerable, and combines with the long length of the panels to improve acoustic insulation performance.
  • an acoustic insulating panel made of composite material and by which to form a barrier for reflecting, absorbing and damping incident sound waves; the panel comprising a shell defined longitudinally by substantially C-shaped edges; and the panel being characterized by comprising a number of reinforcing ribs, and at least one layer of sound-absorbing material housed between at least two adjacent ribs; each rib having a cross section of a given shape; and the shell being formed by bending thin sheet material.
  • the sound-absorbing material may be replaced by or integrated with a layer of vibration-damping material.
  • Number 1 in Figure 1 indicates as a whole an acoustic insulating panel from which to form an acoustic insulating barrier 2 surrounding, and for preventing the propagation of pollutant sound waves from, open spaces containing main roads, motorways, railways, building sites, airports or industrial plants.
  • Barrier 2 comprises a number of flat walls 2b arranged one after the other so that, from above, barrier 2 resembles a broken line.
  • Each wall 2b is defined longitudinally by two uprights 3 in turn defined by two straight, parallel, substantially vertical rods; and each upright 3 comprises a ground anchor plate 4, and an H-shaped cross section defining two opposite C-shaped longitudinal grooves 5.
  • each wall 2b comprises, between two adjacent uprights 3, a number of substantially identical panels 1, which are made of composite material, are substantially parallelepiped in shape, and are arranged on edge one on top of the other with respective substantially parallelepiped end portions 7 engaging grooves 5 of uprights 3.
  • Grooves 5 therefore provide for guiding panels 1 at assembly, and for subsequently holding them in place.
  • each panel 1 comprises an elongated metal shell 8 with a substantially rectangular cross section of a thickness approximately equal to but no greater than the thickness of panel 1; and, as shown in Figure 1, each panel 1 is covered with a cushion 9 made of composite material, and which is normally applied to the noise source side of panel 1.
  • Shell 8 mainly provides for acoustic insulation, and cushion 9 mainly for sound absorption.
  • Shell 8 may be formed by rolling thin, zinc-plated sheet steel or aluminium, and is coated with waterproofing material, such as paint or a plastic film.
  • Shell 8 comprises a number of reinforcing ribs formed, for example, when rolling the sheet from which shell 8 is formed, and which comprise end ribs 10 - hereinafter referred to simply as edges 10 - defining the top and bottom of shell 8 and formed by bending the sheet into a C, and T-shaped ribs 13 (only two shown in Figure 1) located between edges 10.
  • Shell 8 therefore comprises, between two ribs 13 or between a rib 13 and the adjacent edge lo, a longitudinal portion 14 of the same length as shell 8 itself.
  • Each edge 10 and the adjacent rib 13 define a first container 11 open at the bottom in Figure 1 and for freely receiving cushion 9; and each two adjacent ribs 13 define a second container 12 also open at the bottom in Figure 1 and for freely receiving cushion 9.
  • Edges 10 and ribs 13 comprise respective wings 10a, 13a parallel to longitudinal portions 14, and which act as supporting members by which to fit panels 1 in any axial position to the outside of uprights 3 by means of metal plates 3a fittable to the body of uprights 3 (Figure 3).
  • This method of connecting shells 8 to uprights 3 provides for greatly simplifying the erection of barrier 2 by permitting a greater tolerance between the axes of uprights 3 than when shells 8 are inserted inside grooves 5 of adjacent uprights 3 ( Figure 2).
  • Wings 10a and 13a therefore act as elongated supporting members of substantially the same length as shell 8, and which are particularly suitable for assembling the panels regardless of the distance between the axes of uprights 3.
  • Each portion 14 comprises a number of evenly spaced impressions 15, which in Figure 1 are X-shaped, but which may also be Y-shaped or in the form of a cross. Besides reinforcing the structure (increasing the bending resistance) of shell 8, impressions 15 also provide for improving the acoustic insulating and damping capacity of panel 1 by greatly increasing the natural vibration frequency.
  • cushion 9 comprises a layer 16 contacting shell 8 and made of sound-absorbing material, such as glass fiber, rock fiber, loose expanded clay, expanded clay with chemical binders or cement, open-cell expanded plastic (polyurethane, polyester) , waste rubber, sound-absorbing asphalt, porous cement, etc. All these materials may be used alone or in appropriate mixtures.
  • sound-absorbing material such as glass fiber, rock fiber, loose expanded clay, expanded clay with chemical binders or cement, open-cell expanded plastic (polyurethane, polyester) , waste rubber, sound-absorbing asphalt, porous cement, etc. All these materials may be used alone or in appropriate mixtures.
  • Layer 16 may be sprayed, poured, bonded or fastened on.
  • Cushion 9 may also comprise a second layer 17 of caoutchouc or other sound-absorbing rubber material, which is sprayed over layer 16 to protect it against damp, atmospheric agents and mechanical shock.
  • Figure 1 shows a possible third layer 18 of damping material for reducing free or forced vibration induced in panel 1, and more specifically in shells 8, and so reducing the amount of noise propagated by way of the structure.
  • the damping material may comprise, for example, modified filled bitumen, modified filled butyl, or high-density laminated plastic.
  • Shells 8 are therefore so formed as to be transportable in stacks, with ribs 13 facing one another to reduce the height of the stacks, and are light enough to be handled using cheaper, more agile lifting equipment.
  • panels 1 provides for major advantages as regards the formation of barrier 2, a low-cost method of which comprises the steps of erecting uprights 3 between the noise source and the region for insulation, so that the uprights are equally spaced and parallel to one another, with respective grooves 5 substantially facing each other in pairs; inserting shells 8 one after the other from the top, with respective portions 7 inside grooves 5 of adjacent uprights 3; sliding each shell 8 downwards until a respective bottom edge 10 contacts anchor plates 4 or the top edge 10 of the shell 8 underneath; spraying the sound-absorbing material inside shell 8 to fill containers 11 and 12 and so form layer 16; connecting portions 7 of each shell 8 permanently and in soundproof manner to respective uprights 3; and spraying on layer 17 to cover the whole of layer 16.
  • the step of spraying the sound-absorbing material inside shell 8 comprises the step of connecting portions 7 of each shell 8 permanently and in soundproof manner to grooves 5 of respective uprights 3, and must be done carefully to ensure layer 16 penetrates and completely fills the gap defined between an edge of groove 5 and the corresponding portion 7.
  • the step of inserting shells 8 is necessarily preceded by the on-the-spot step of adapting the length of shells 8 as required, e.g. by manually shearing off the surplus material, thus avoiding the added cost and inconvenience of returning shells 8 to the factory.
  • the sound-absorbing material may be sprayed inside to completely fill containers 11 and 12.
  • Figure 3 shows the simplified embodiment, described previously, of barrier 2, in which uprights 3 are fitted with plates 3a, and which is particularly suitable in the event, for any reason, the real distance between the axes of uprights 3 is less than that designed to assemble shells 8 inside grooves 5.
  • the insertion step is replaced by the step of fitting panels 1 to the outside of uprights 3 by simply inserting wings 10a, 13a inside the gaps defined between the face of uprights 3 and respective plates 3a.
  • the method described provides for greatly simplifying the in-plant part of the panel 1 production cycle, and so reducing the cost of transporting and handling the component parts of the panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Telephone Set Structure (AREA)
  • Lock And Its Accessories (AREA)
EP97830612A 1996-11-19 1997-11-19 Panneau d'isolation acoustique Expired - Lifetime EP0843045B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730638T SI0843045T1 (en) 1996-11-19 1997-11-19 Acoustic insulating panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO960593 1996-11-19
IT96BO000593A IT1286776B1 (it) 1996-11-19 1996-11-19 Pannello antiacustico

Publications (2)

Publication Number Publication Date
EP0843045A1 true EP0843045A1 (fr) 1998-05-20
EP0843045B1 EP0843045B1 (fr) 2004-02-04

Family

ID=11341726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97830612A Expired - Lifetime EP0843045B1 (fr) 1996-11-19 1997-11-19 Panneau d'isolation acoustique

Country Status (6)

Country Link
EP (1) EP0843045B1 (fr)
AT (1) ATE259013T1 (fr)
DE (1) DE69727448T2 (fr)
ES (1) ES2213202T3 (fr)
IT (1) IT1286776B1 (fr)
SI (1) SI0843045T1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU90243B1 (fr) * 1998-05-20 1999-11-22 Profilarbed Sa Procédé de fabrication in situ de parois acoustiques et parois acoustiques
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
EP1069243A2 (fr) * 1999-07-14 2001-01-17 METALMECCANICA FRACASSO S.p.A. Panneau acoustique pour barriere antibruit
WO2003083217A1 (fr) * 2002-03-25 2003-10-09 Commonwealth Industries, Inc. Systeme formant barriere sonique
EP1529883A1 (fr) * 2003-11-04 2005-05-11 Bongard GmbH & Co. KG Mur anti-bruit
EP1760210A2 (fr) * 2005-08-31 2007-03-07 Francesco Donati Dispositif d'atténuation phonique pour la réalisation de panneaux, murs ou similaire
EP2216446A1 (fr) 2009-02-05 2010-08-11 Kenn Hertzmann Jørgensen Clôture insonorisante
ITMI20090620A1 (it) * 2009-04-16 2010-10-17 Sergio Ricci Procedimento e manufatti in calcestruzzo prefabbricati fonoassorbenti fonoisolanti termoisolanti
CN101691119B (zh) * 2009-09-18 2011-11-30 广州市延昌新型塑胶制品有限公司 一种高速列车阻尼隔音片材及其制造方法
WO2012017076A1 (fr) 2010-08-05 2012-02-09 Joergensen Kenn Hertzman Barrière d'atténuation de bruit
KR101222186B1 (ko) 2011-04-29 2013-02-18 주식회사 테크유니온 방음시설
CN113981844A (zh) * 2020-07-12 2022-01-28 西藏中驰集团股份有限公司 声屏障凹凸重叠系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003726A1 (de) * 2008-01-09 2009-07-16 Calenberg Ingenieure, planmäßig elastisch lagern, GmbH Wandelement für eine Schallschutzwand
DE202009012824U1 (de) 2009-09-24 2009-12-10 Calenberg Ingenieure, planmäßig elastisch lagern, GmbH Wandelement für eine Schallschutzwand

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2120702A5 (fr) * 1970-11-19 1972-08-18 Larmschutz Biergans Co
FR2311146A1 (fr) * 1975-05-15 1976-12-10 Judeaux Robert Perfectionnements aux panneaux acoustiquement isolants et absorbants et aux murs composes de tels panneaux
DE2935745A1 (de) * 1979-09-05 1981-07-23 Baufa-Werke Richard Rinker, 5750 Menden Laermschutzwand
US4495240A (en) * 1981-12-31 1985-01-22 Usm Corporation Heat-fusible-expandable mastic for automobile floor pans
US4566558A (en) * 1985-02-21 1986-01-28 Marine Systems, Inc. Noise barrier
CH672932A5 (en) * 1987-07-28 1990-01-15 Montana Stahl Ag Noise-attenuating wall section - contains insulating layers of different densities, with first layer held clear of front wall by distance piece
US5272284A (en) * 1991-07-10 1993-12-21 Carsonite International Corp. Sound barrier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2120702A5 (fr) * 1970-11-19 1972-08-18 Larmschutz Biergans Co
FR2311146A1 (fr) * 1975-05-15 1976-12-10 Judeaux Robert Perfectionnements aux panneaux acoustiquement isolants et absorbants et aux murs composes de tels panneaux
DE2935745A1 (de) * 1979-09-05 1981-07-23 Baufa-Werke Richard Rinker, 5750 Menden Laermschutzwand
US4495240A (en) * 1981-12-31 1985-01-22 Usm Corporation Heat-fusible-expandable mastic for automobile floor pans
US4566558A (en) * 1985-02-21 1986-01-28 Marine Systems, Inc. Noise barrier
CH672932A5 (en) * 1987-07-28 1990-01-15 Montana Stahl Ag Noise-attenuating wall section - contains insulating layers of different densities, with first layer held clear of front wall by distance piece
US5272284A (en) * 1991-07-10 1993-12-21 Carsonite International Corp. Sound barrier

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU90243B1 (fr) * 1998-05-20 1999-11-22 Profilarbed Sa Procédé de fabrication in situ de parois acoustiques et parois acoustiques
WO1999060215A1 (fr) * 1998-05-20 1999-11-25 Profilarbed S.A. Procede de fabrication in situ de parois acoustiques et parois acoustiques
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
EP1069243A2 (fr) * 1999-07-14 2001-01-17 METALMECCANICA FRACASSO S.p.A. Panneau acoustique pour barriere antibruit
EP1069243A3 (fr) * 1999-07-14 2001-06-06 METALMECCANICA FRACASSO S.p.A. Panneau acoustique pour barriere antibruit
WO2003083217A1 (fr) * 2002-03-25 2003-10-09 Commonwealth Industries, Inc. Systeme formant barriere sonique
US6827179B2 (en) 2002-03-25 2004-12-07 Commonwealth Industries, Inc. Sound barrier system
EP1529883A1 (fr) * 2003-11-04 2005-05-11 Bongard GmbH & Co. KG Mur anti-bruit
EP1760210A2 (fr) * 2005-08-31 2007-03-07 Francesco Donati Dispositif d'atténuation phonique pour la réalisation de panneaux, murs ou similaire
EP1760210A3 (fr) * 2005-08-31 2009-03-11 Francesco Donati Dispositif d'atténuation phonique pour la réalisation de panneaux, murs ou similaire
EP2216446A1 (fr) 2009-02-05 2010-08-11 Kenn Hertzmann Jørgensen Clôture insonorisante
WO2010089324A1 (fr) 2009-02-05 2010-08-12 Joergensen Kenn Hertzmann Barrière de suppression de son
ITMI20090620A1 (it) * 2009-04-16 2010-10-17 Sergio Ricci Procedimento e manufatti in calcestruzzo prefabbricati fonoassorbenti fonoisolanti termoisolanti
CN101691119B (zh) * 2009-09-18 2011-11-30 广州市延昌新型塑胶制品有限公司 一种高速列车阻尼隔音片材及其制造方法
WO2012017076A1 (fr) 2010-08-05 2012-02-09 Joergensen Kenn Hertzman Barrière d'atténuation de bruit
KR101222186B1 (ko) 2011-04-29 2013-02-18 주식회사 테크유니온 방음시설
CN113981844A (zh) * 2020-07-12 2022-01-28 西藏中驰集团股份有限公司 声屏障凹凸重叠系统

Also Published As

Publication number Publication date
DE69727448D1 (de) 2004-03-11
SI0843045T1 (en) 2004-08-31
ES2213202T3 (es) 2004-08-16
EP0843045B1 (fr) 2004-02-04
ITBO960593A1 (it) 1998-05-19
ITBO960593A0 (it) 1996-11-19
DE69727448T2 (de) 2005-01-13
IT1286776B1 (it) 1998-07-17
ATE259013T1 (de) 2004-02-15

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