EP0417049B1 - Panel for acoustic barrier - Google Patents

Panel for acoustic barrier Download PDF

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Publication number
EP0417049B1
EP0417049B1 EP90810680A EP90810680A EP0417049B1 EP 0417049 B1 EP0417049 B1 EP 0417049B1 EP 90810680 A EP90810680 A EP 90810680A EP 90810680 A EP90810680 A EP 90810680A EP 0417049 B1 EP0417049 B1 EP 0417049B1
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EP
European Patent Office
Prior art keywords
noise
sound
absorbing layer
layer
plate element
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.)
Expired - Lifetime
Application number
EP90810680A
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German (de)
French (fr)
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EP0417049A1 (en
Inventor
Samuel Hirschi
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.)
FILIGRAN BAUELEMENTE AG
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FILIGRAN BAUELEMENTE AG
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 FILIGRAN BAUELEMENTE AG filed Critical FILIGRAN BAUELEMENTE AG
Priority to AT90810680T priority Critical patent/ATE85821T1/en
Publication of EP0417049A1 publication Critical patent/EP0417049A1/en
Application granted granted Critical
Publication of EP0417049B1 publication Critical patent/EP0417049B1/en
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • 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 invention relates to a plate element for a noise barrier according to the preamble of claim 1.
  • Panel elements are known which can be assembled into sound-absorbing noise barriers with the aid of known connecting elements and techniques.
  • Noise protection walls composed of such plate elements are used to protect the surroundings from traffic noise at the edges of streets and train tracks.
  • Various types of such noise barriers are known.
  • noise barriers made of concrete must be distinguished from those made of wood.
  • the supporting base body consists of conventional concrete, which is provided on the sound-facing side with a sound-absorbing layer made of a porous concrete, for example made of lavender clay.
  • a sound-absorbing layer made of a porous concrete, for example made of lavender clay.
  • the surface of the sound-absorbing layer can be wave-shaped, for example in the form of longitudinal trapezoidal elevations and depressions.
  • Such noise barriers are robust and insensitive to environmental influences such as pollution, moisture and frost.
  • the porous absorption layer absorbs moisture, it is not destroyed by it, but rather the moisture flows through the porous material and takes dirt particles attached to it in the pores or on the surface. It has been shown that moisture frozen in the pores does not cause any damage to the absorption layer.
  • the noise barriers are made of wood.
  • the noise barriers have the advantage of significantly lower weight than those made of concrete and offer aesthetic advantages over concrete walls.
  • Noise protection walls made of wood are usually constructed so that the sound-absorbing effect is achieved by a layer of sound-absorbing material, which is located within a supporting frame.
  • the sound-absorbing layer preferably consists of rock wool or another, preferably mineral, fiber wool.
  • the frame of such a plate element is closed at the rear by means of a wooden rear wall, which consists for example of wooden slats. If necessary, an air gap can be provided between the sound-absorbing layer and the rear wall in order to achieve an additional insulating effect.
  • the sound-absorbing layer can additionally be covered with a polyester fleece.
  • the mechanically effective covering of the noise protection wall towards the soundproof side is carried out in such designs by means of wooden slats.
  • the wooden slats are attached to the frame in front of the sound-absorbing layer in the form of a slatted frame, i.e. at a certain distance from each other, preferably in the vertical direction. Slats with a trapezoidal cross section are preferably used for this purpose.
  • the sound-absorbing layer is exposed to the outside in the spaces between the individual wooden slats.
  • a complete, Covering the entire area of the sound-absorbing layer is not possible to maintain the noise protection function.
  • the described design of a wooden noise protection wall has in particular the disadvantage that the sound-absorbing layer is only incompletely protected against mechanical damage due to the incomplete covering to the outside. Willful and natural damage to the sound-absorbing layer and thus considerable impairment of the noise protection effect can often occur.
  • the invention is described in more detail below with reference to the drawing, for example.
  • the figure shows: a section through a noise barrier with a plate element according to the invention.
  • the exemplary embodiment of a plate element 1 according to the invention for a noise protection wall shown in the figure consists of a wooden frame 2 which is filled with a cement-bound, porous material to form a sound-absorbing covering layer up to a certain height.
  • the soundproof surface of the cover layer 3 can be flat or structured differently to increase the noise protection effect, such as with ribs 3a.
  • the cover layer 3 consisting of a cement-bonded, porous material is adjoined by a layer of a sound-absorbing material 4, preferably rock wool, glass wool or a wool from other mineral fibers or mixtures.
  • the noise barrier is covered with a wooden rear wall 5, which is preferably in the form of wooden slats.
  • Individual plate elements according to the invention can be combined to form a noise protection wall of any length by means of known connecting and anchoring means.
  • the top of the plate elements can be closed with a sheet metal cover, preferably made of copper sheet.
  • the frame of the plate element can be provided with corresponding grooves and other connecting means.
  • the plate element according to the invention for a noise protection wall is covered on the side facing the sound by a layer of a cement-bound, porous material.
  • this cement-bound, porous material is a lavabone.
  • other, advantageously porous aggregates can also be present individually or in combination with one another in the cement-bound material forming the covering layer.
  • additives can be, for example, wood chips, clay balls, granules made of foam plastic or similar particles.
  • the plate element according to the invention achieves its Noise protection effect through the combination of two sound-absorbing means, one behind the other, ie the cover layer and additionally the insulating layer.
  • the plate element according to the invention for a noise protection wall thus achieves a good noise protection effect, is insensitive to dirt and weather influences and damage to the absorption layer, which preferably consists of a fiber wool, is excluded.

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  • 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)

Abstract

In a panel (1) for an acoustic barrier made of wood, the noise-absorbing layer (4), which preferably comprises a fibre wool, is completely covered with a layer (3) of a cement-bound porous material. In this way the disadvantages associated with traditional designs of acoustic barriers made of wood with incomplete covering of the sound-absorbing layer using wooden laths are avoided, a better aesthetic effect is produced and a unit with low weight is achieved. <IMAGE>

Description

Die Erfindung betrifft ein Plattenelement für eine Lärmschutzwand gemäss dem Oberbegriff des Patentanspruches 1.The invention relates to a plate element for a noise barrier according to the preamble of claim 1.

Es sind Plattenelemente bekannt, die sich mit Hilfe bekannter Verbindungselemente und -techniken zu schallabsorbierenden Lärmschutzwänden zusammensetzen lassen. Aus solchen Plattenelementen zusammengesetzte Lärmschutzwände werden zum Schutz der Umgebung vor Verkehrslärm an den Rändern von Strassen und Bahngleisen eingesetzt. Es sind verschiedene Bauarten derartiger Lärmschutzwände bekannt. Insbesondere sind Lärmschutzwände aus Beton von solchen aus Holz zu unterscheiden.Panel elements are known which can be assembled into sound-absorbing noise barriers with the aid of known connecting elements and techniques. Noise protection walls composed of such plate elements are used to protect the surroundings from traffic noise at the edges of streets and train tracks. Various types of such noise barriers are known. In particular, noise barriers made of concrete must be distinguished from those made of wood.

Bei einer bekannten Ausführung einer schallabsorbierenden Lärmschutzwand aus Beton besteht der tragende Grundkörper aus herkömmlichem Beton, welcher auf der schallzugewandten Seite mit einer schallabsorbierenden Schicht aus einem porösem Beton, beispielsweise aus Lavabeton, versehen ist. Zum Erzielen einer verbesserten schallabsorbierenden Wirkung kann die Oberfläche der schallabsorbierenden Schicht wellenartig ausgeführt sein, beispielsweise in Form von längs verlaufenden trapezförmigen Erhöhungen und Vertiefungen. Derartige Lärmschutzwände sind robust und unempfindlich gegen Umwelteinflüsse wie Verschmutzung, Feuchtigkeit und Frost. Zwar nimmt die poröse Absorptionsschicht Feuchtigkeit auf, sie wird jedoch nicht von dieser zerstört, sondern die Feuchtigkeit fliesst durch das poröse Material hindurch und nimmt dabei in den Poren bzw. an der Oberfläche angelagerte Schmutzpartikel mit. Es hat sich gezeigt, dass auch in den Poren gefrorene Feuchtigkeit keine Schäden an der Absoptionsschicht hervorruft.In a known embodiment of a sound-absorbing noise protection wall made of concrete, the supporting base body consists of conventional concrete, which is provided on the sound-facing side with a sound-absorbing layer made of a porous concrete, for example made of lavender clay. In order to achieve an improved sound-absorbing effect, the surface of the sound-absorbing layer can be wave-shaped, for example in the form of longitudinal trapezoidal elevations and depressions. Such noise barriers are robust and insensitive to environmental influences such as pollution, moisture and frost. Although the porous absorption layer absorbs moisture, it is not destroyed by it, but rather the moisture flows through the porous material and takes dirt particles attached to it in the pores or on the surface. It has been shown that moisture frozen in the pores does not cause any damage to the absorption layer.

Der Nachteil derartiger Lärmschutzwände besteht in dem hohen Gewicht, was sich insbesondere beim Transport zum Aufstellort und beispielsweise beim Einsatz auf Brücken etc. negativ bemerkbar macht.The disadvantage of such noise barriers is the high weight, which is particularly noticeable when transported to the installation site and, for example, when used on bridges, etc.

In einer anderen bekannten Ausführung bestehen die Lärmschutzwände aus Holz. In dieser Ausführung weisen die Lärmschutzwände gegenüber solchen aus Beton den Vorteil deutlich niedrigeren Gewichtes auf und bieten gegenüber Betonwänden ästhetische Vorteile.In another known embodiment, the noise barriers are made of wood. In this version, the noise barriers have the advantage of significantly lower weight than those made of concrete and offer aesthetic advantages over concrete walls.

Lärmschutzwände aus Holz gemäß dem Oberbegriff des Anspruchs 1 sind in der Regel so aufgebaut, dass die schallabsorbierende Wirkung durch eine Schicht aus schallabsorbierendem Material erzielt wird, welche sich innerhalb eines tragenden Rahmens befindet. Die schallabsorbierende Schicht besteht vorzugsweise aus Steinwolle oder einer anderen, vorzugsweise mineralischen, Faserwolle. Der Rahmen eines solchen Plattenelementes ist nach hinten mittels einer hölzernen Rückwand verschlossen, welche beispielsweise aus Holzlatten besteht. Gegebenenfalls kann zwischen der schallabsorbierenden Schicht und der Rückwand zum Erreichen einer zusätzlichen Isolierwirkung ein Luftspalt vorgesehen sein. Nach vorne, also zur schallzugewandten Seite hin, kann die schallabsorbierende Schicht zusätzlich mit einem Polyestervlies überzogen sein. Die mechanisch wirksame Abdeckung der Lärmschutzwand zur schallzugewandten Seite hin wird bei derartigen Ausführungen mittels Holzlatten vorgenommen. Die Holzlatten sind vor der schallabsorbierenden Schicht in Form eines Lattenrostes, also jeweils in einigem Abstand voneinander vorzugsweise in vertikaler Richtung am Rahmen angebracht. Vorzugsweise werden hierzu Latten mit trapezförmigem Querschnitt verwendet.Noise protection walls made of wood according to the preamble of claim 1 are usually constructed so that the sound-absorbing effect is achieved by a layer of sound-absorbing material, which is located within a supporting frame. The sound-absorbing layer preferably consists of rock wool or another, preferably mineral, fiber wool. The frame of such a plate element is closed at the rear by means of a wooden rear wall, which consists for example of wooden slats. If necessary, an air gap can be provided between the sound-absorbing layer and the rear wall in order to achieve an additional insulating effect. Towards the front, i.e. towards the side facing the sound, the sound-absorbing layer can additionally be covered with a polyester fleece. The mechanically effective covering of the noise protection wall towards the soundproof side is carried out in such designs by means of wooden slats. The wooden slats are attached to the frame in front of the sound-absorbing layer in the form of a slatted frame, i.e. at a certain distance from each other, preferably in the vertical direction. Slats with a trapezoidal cross section are preferably used for this purpose.

In dieser Ausführung liegt die schallabsorbierende Schicht in den Zwischenräumen zwischen den einzelnen Holzlatten nach aussen hin frei. Ein vollständiges, ganzflächiges Abdecken der schallabsorbierenden Schicht ist zum Aufrechterhalten der Lärmschutzfunktion nicht möglich. Neben einer gegenüber Lärmschutzwänden aus Beton grösseren Empfindlichkeit gegenüber Verschmutzungen weist die beschriebene Ausführung einer hölzernen Lärmschutzwand insbesondere den Nachteil auf, dass die schallabsorbierende Schicht, wegen der nicht vollständigen Abdeckung nach aussen, gegen mechanische Beschädigungen nur unvollständig geschützt ist. Mutwillige und auch naturbedingte Beschädigungen der schallabsorbierenden Lage und damit erhebliche Beeinträchtigungen der Lärmschutzwirkung können häufig auftreten.In this version, the sound-absorbing layer is exposed to the outside in the spaces between the individual wooden slats. A complete, Covering the entire area of the sound-absorbing layer is not possible to maintain the noise protection function. In addition to a greater sensitivity to dirt than noise protection walls made of concrete, the described design of a wooden noise protection wall has in particular the disadvantage that the sound-absorbing layer is only incompletely protected against mechanical damage due to the incomplete covering to the outside. Willful and natural damage to the sound-absorbing layer and thus considerable impairment of the noise protection effect can often occur.

Es ist somit Aufgabe der vorliegenden Erfindung, eine Lärmschutzwand zu schaffen, welche insbesondere im Hinblick auf ästhetische Wirkung und Gewicht der Wand die Vorteile einer hölzernen Lärmschutzwand bietet und ebenso robust ist, wie die bekannten Ausführungen von Lärmschutzwänden aus Beton.It is therefore an object of the present invention to provide a noise barrier which offers the advantages of a wooden noise barrier, in particular with regard to the aesthetic effect and weight of the wall, and which is just as robust as the known versions of concrete noise barriers.

Diese Aufgabe wird erfindungsgemäss durch die im kennzeichnenden Teil des Patentanspruches 1 aufgeführten Merkmale gelöst.This object is achieved according to the invention by the features listed in the characterizing part of patent claim 1.

Im folgenden wird die Erfindung unter Bezugnahme auf die Zeichnung beispielsweise näher beschrieben.
Die Figur zeigt: einen Schnitt durch eine Lärmschutzwand mit einem erfindungsgemässen Plattenelement.The invention is described in more detail below with reference to the drawing, for example.
The figure shows: a section through a noise barrier with a plate element according to the invention.

Das in der Figur dargestellte Ausführungsbeispiel eines erfindungsgemässen Plattenelementes 1 für eine Lärmschutzwand besteht aus einem hölzernen Rahmen 2, welcher zum Ausbilden einer schallabsorbierenden Abdeckschicht bis zu einer bestimmten Höhe mit einem zementgebundenen, porösen Werkstoff gefüllt ist. Die schallzugewandte Oberfläche der Deckschicht 3 kann eben oder zur Erhöhung der Lärmschutzwirkung anders strukturiert, wie beispielsweise mit Rippen 3a, ausgeführt sein. Auf der schallabgewandten Seite schliesst sich der aus einem zementgebundenen, porösen Werkstoff bestehenden Deckschicht 3 eine Lage eines schallabsorbierenden Materials 4 an, wobei vorzugsweise Steinwolle, Glaswolle oder eine Wolle aus anderen mineralischen Fasern oder -gemischen verwendet wird. Zur schallabgewandten Seite hin ist die Lärmschutzwand mit einer hölzernen Rückwand 5, welche vorzugsweise in Form von Holzlatten ausgeführt ist, abgedeckt. Einzelne erfindungsgemässe Plattenelemente können mittels bekannter Verbindungs- und Verankerungsmittel zu einer Lärmschutzwand beliebiger Länge kombiniert werden. Zum Schutz vor Witterungseinflüssen kann die Oberseite der Plattenelemente mit einer Blechabdeckung, vorzugsweise aus Kupferblech abgeschlossen werden.The exemplary embodiment of a plate element 1 according to the invention for a noise protection wall shown in the figure consists of a wooden frame 2 which is filled with a cement-bound, porous material to form a sound-absorbing covering layer up to a certain height. The soundproof surface of the cover layer 3 can be flat or structured differently to increase the noise protection effect, such as with ribs 3a. On the side facing away from the sound, the cover layer 3 consisting of a cement-bonded, porous material is adjoined by a layer of a sound-absorbing material 4, preferably rock wool, glass wool or a wool from other mineral fibers or mixtures. On the side facing away from the sound, the noise barrier is covered with a wooden rear wall 5, which is preferably in the form of wooden slats. Individual plate elements according to the invention can be combined to form a noise protection wall of any length by means of known connecting and anchoring means. To protect against the weather, the top of the plate elements can be closed with a sheet metal cover, preferably made of copper sheet.

Zur vollständigen Erzielung der erstrebten Lärmschutzwirkung ist es erforderlich, die Zwischenräume zwischen den einzelnen Plattenelementen mit entsprechenden Dichtungsmitteln zu versehen. Der Rahmen des Plattenelementes kann hierfür mit entsprechenden Nuten und anderen Verbindungsmitteln versehen sein.To achieve the desired noise protection effect completely, it is necessary to provide the gaps between the individual plate elements with appropriate sealing means. For this purpose, the frame of the plate element can be provided with corresponding grooves and other connecting means.

Das erfindungsgemässe Plattenelement für eine Lärmschutzwand ist zur schallzugewandten Seite hin durch eine Schicht aus einem zementgebundenen, porösen Werkstoff abgedeckt. Dieser zementgebundenen, poröse Werkstoff ist in einer vorteilhaften Ausführung ein Lavabeton. Es können jedoch auch andere, vorteilhafterweise poröse Zuschlagstoffe einzeln oder in Kombination untereinander in dem die Abdeckschicht bildenden zementgebundenen Werkstoff vorhanden sein. Diese Zuschlagstoffe können beispielsweise Holzspäne, Tonkugeln, Granulate aus Schaumkunststoff oder ähnliche Partikel sein.The plate element according to the invention for a noise protection wall is covered on the side facing the sound by a layer of a cement-bound, porous material. In an advantageous embodiment, this cement-bound, porous material is a lavabone. However, other, advantageously porous aggregates can also be present individually or in combination with one another in the cement-bound material forming the covering layer. These additives can be, for example, wood chips, clay balls, granules made of foam plastic or similar particles.

Das erfindungsgemässe Plattenelement erzielt seine Lärmschutzwirkung durch die Kombination von zwei hintereinanderliegenden, schallabsorbierenden Mitteln, d.h. der Abdeckschicht und zusätzlich der Isolierschicht. Damit erreicht das erfindungsgemässe Plattenelement für eine Lärmschutzwand eine gute Lärmschutzwirkung, ist unempfindlich gegen Verschmutzung sowie Witterungseinflüsse und eine Beschädigung der vorzugsweise aus einer Faserwolle bestehenden Absorbierschicht ist ausgeschlossen.The plate element according to the invention achieves its Noise protection effect through the combination of two sound-absorbing means, one behind the other, ie the cover layer and additionally the insulating layer. The plate element according to the invention for a noise protection wall thus achieves a good noise protection effect, is insensitive to dirt and weather influences and damage to the absorption layer, which preferably consists of a fiber wool, is excluded.

Claims (4)

  1. Plate element (1) for an acoustical barrier comprising a frame (2) enclosing the screen element, a back wall (5) closing off the frame on the side turned away from the noise, of sound absorbing means, which are realized in the form of a sound absorbing layer (4) disposed on the side facing the noise and of means (3) to cover the absorbing layer (4) on the side facing the noise, the frame (2) and the back wall (5) consisting of wood, characterized in that the cover means (3) consist of a porous material combined with cement, and totally cover the entire surface of the absorbing layer (4), and in that the cover means (3) have a sound absorbing effect.
  2. Plate element for an acoustical barrier according to claim 1, characterized in that the cover means (3) consist of lava cement.
  3. Plate element for an acoustical barrier according to claim 1 or 2, characterized in that the absorbing layer (4) consists of fibrous wool.
  4. Plate element for an acoustical barrier according to one of the claims 1 to 3, characterized in that the outer surface of the cover means (3) is wave-like or stepped in design.
EP90810680A 1989-09-08 1990-09-07 Panel for acoustic barrier Expired - Lifetime EP0417049B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810680T ATE85821T1 (en) 1989-09-08 1990-09-07 PANEL ELEMENT FOR A NOISE BARRIER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3274/89 1989-09-08
CH327489 1989-09-08

Publications (2)

Publication Number Publication Date
EP0417049A1 EP0417049A1 (en) 1991-03-13
EP0417049B1 true EP0417049B1 (en) 1993-02-17

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Application Number Title Priority Date Filing Date
EP90810680A Expired - Lifetime EP0417049B1 (en) 1989-09-08 1990-09-07 Panel for acoustic barrier

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EP (1) EP0417049B1 (en)
AT (1) ATE85821T1 (en)
DE (2) DE9001449U1 (en)

Families Citing this family (17)

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NL9400173A (en) * 1994-02-04 1995-09-01 Veldhoen Raalte B V Noise barrier.
AU3671495A (en) * 1995-10-25 1997-05-15 Ed Zublin A.G. Sound-absorbent and sound-damping structural element
EP0771907A1 (en) * 1995-11-06 1997-05-07 Vossloh-Werke GmbH Absorption body for the reduction of airborne noise
WO1998012387A1 (en) * 1996-09-23 1998-03-26 Gunnebo Industrier Ab Sound barrier
FR2754288B1 (en) * 1996-10-09 1998-12-04 Socarel MODULAR ABSORBENT PANELS AND NOISE SHIELDS INCLUDING SUCH PANELS
DK1032733T3 (en) * 1997-10-28 2003-08-18 Rockwool Int sound barrier
DE202012102193U1 (en) 2012-06-14 2013-09-18 Hering Bau Gmbh & Co. Kg Acoustic shielding unit with specially arranged noise attenuation
DE202012102192U1 (en) 2012-06-14 2013-09-18 Hering Bau Gmbh & Co. Kg Shielding unit made of concrete
DE102012105983A1 (en) 2012-07-04 2014-01-09 Hering Bau Gmbh & Co. Kg Acoustic shielding unit and its structure
DE202012103533U1 (en) 2012-09-17 2013-12-20 Hering Bau Gmbh & Co. Kg Shielding unit made of concrete
DE202013101454U1 (en) 2013-04-05 2013-06-26 Hering Bau Gmbh & Co. Kg Acoustic shielding unit
DE102015109807A1 (en) 2015-06-19 2016-12-22 Liaver Gmbh & Co. Kg Sound-absorbing component with carrier layer
WO2016203057A1 (en) 2015-06-19 2016-12-22 Liaver Gmbh & Co.Kg Noise-absorbing component, and noise-protection wall comprising such a component
DE102015109808A1 (en) 2015-06-19 2016-12-22 Liaver Gmbh & Co. Kg Sound-absorbing component and soundproof wall with such
CN106223529B (en) * 2016-07-21 2018-07-24 同济大学 A kind of out-hung panel and preparation method thereof of the compound wood wool board of lightgage steel joist
DE102016124755B3 (en) * 2016-12-19 2018-02-15 Liaver Gmbh & Co. Kg Sound-absorbing component with deletion profiles and sound insulation wall
AT17833U1 (en) * 2021-12-23 2023-04-15 Rosenberger Johann Noise protection element in the form of a lightweight element

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Publication number Priority date Publication date Assignee Title
FR2311146A1 (en) * 1975-05-15 1976-12-10 Judeaux Robert Soundproof panel for outdoor use - has double layer core between plain and perforated galvanized metal plates
CA1093975A (en) * 1979-07-19 1981-01-20 William G. Docherty Accoustical barrier
CH660609A5 (en) * 1983-08-17 1987-05-15 Hunziker & Cie Ag Noise prevention element
DE3827144A1 (en) * 1988-08-10 1990-02-15 Ulrich Dipl Ing Gerstner Sound-absorbing structural part

Also Published As

Publication number Publication date
ATE85821T1 (en) 1993-03-15
DE59000895D1 (en) 1993-03-25
EP0417049A1 (en) 1991-03-13
DE9001449U1 (en) 1990-04-12

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