EP2157242A2 - Cassette antibruit - Google Patents

Cassette antibruit Download PDF

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Publication number
EP2157242A2
EP2157242A2 EP09009478A EP09009478A EP2157242A2 EP 2157242 A2 EP2157242 A2 EP 2157242A2 EP 09009478 A EP09009478 A EP 09009478A EP 09009478 A EP09009478 A EP 09009478A EP 2157242 A2 EP2157242 A2 EP 2157242A2
Authority
EP
European Patent Office
Prior art keywords
noise protection
box profile
cassette according
box
sound
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.)
Withdrawn
Application number
EP09009478A
Other languages
German (de)
English (en)
Other versions
EP2157242A3 (fr
Inventor
Robert Kuhnhenn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2157242A2 publication Critical patent/EP2157242A2/fr
Publication of EP2157242A3 publication Critical patent/EP2157242A3/fr
Withdrawn legal-status Critical Current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
    • E01F8/0047—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
    • E01F8/0076—Cellular, e.g. as wall facing
    • E01F8/0082—Cellular, e.g. as wall facing with damping material

Definitions

  • the invention relates to a noise protection cassette for forming a noise protection wall according to the preamble of claim 1.
  • Generic noise protection cassettes serve to postpone noise barriers, in particular to ensure a shielding of the noise at traffic routes, such as highways or rail lines.
  • traffic routes such as highways or rail lines.
  • noise barriers are installed along railways and highways to prevent sound quality and noise abatement in surrounding areas due to noise and sound absorption.
  • the wall elements consist of stacked between each other horizontally elongated noise protection cassettes, for example, from rolled sections, preferably from Aluminum sheet in lightweight construction, are made.
  • noise protection cassette is to be understood quite generally in the sense of closed or on one or more sides open noise protection elements.
  • These noise protection cassettes can be made of rolled profiles, extruded profiles, folded or unbent front or back parts, preferably made of aluminum, fiberglass or wood, in lightweight construction.
  • the known noise protection cassettes have in the interior of the box profile, which results in the mechanical stability of the noise protection cassette, a Dämm redesign that should provide the sound absorption.
  • insulation body while mineral wool is usually used, which is very light, but does not contribute to the mechanical stability of the noise protection cassette.
  • a disadvantage of the known noise protection cassettes is that they are very sensitive to corrosion.
  • the known noise protection cassettes are subject to relatively high wear, especially when the box profile of the noise protection cassette is composed of a plurality of interconnected profile elements. For example, if several profile elements riveted together to form the box profile, the riveted joints can be torn by the strong pressure and suction along railway lines after a relatively short period of time and the noise protection cassettes are destroyed.
  • the mechanical properties of the known noise protection cassettes are very limited.
  • mineral wool has the disadvantage that it is destroyed over the years by mechanical influences or weathering. As a result, the sound absorption properties of noise protection cassettes are considerably deteriorated or lose this property completely.
  • the noise protection cassette according to the invention is based on the idea that the box profile of the noise protection cassette, which gives the noise protection cassette its outer shape, is not filled with the known, very light insulating bodies, but for filling the box profile, a curable casting composition of a sound-absorbing filling material is used. Due to the flowable or foam-like state of the aggregate state of the casting compound before curing in particular a complete filling of the box profile can be achieved very easily. In addition, very small openings are sufficient for filling the box section with the filling material, since the casting compound is free-flowing before curing. Thus, a very efficient and inexpensive production of noise protection cassettes according to the invention can be realized.
  • the box section which is optionally completely or even partially filled with the casting material, is used in the noise protection cassette according to the invention in principle as a lost form, in which the still uncured casting material is first taken and then cured with the appropriate shape.
  • Which type of casting compound is used to fill the box profile is fundamentally arbitrary and must be matched to the respective requirement profile of the noise protection cassette.
  • a polymer composition in particular a polymer foam, or a polymer-bound casting composition is used as the hardenable casting compound.
  • the foamed polymer foam should be regarded as a casting material in the sense of the invention, because even such a polymer foam before curing is basically flowable, without being a liquid in the strict sense.
  • a concrete mass is used as the hardenable casting compound.
  • lightweight concrete or single-grain concrete is ideally suited to noise protection cassettes with excellent mechanical and very good sound insulation properties manufacture.
  • lightweight concrete or Einkornbeton in modified composition can be preferably used as a casting.
  • the hardenable casting compound contains additives with soundproofing properties.
  • additives with soundproofing properties may in particular be lignocellulosic aggregates.
  • wood chip concrete ie concrete containing in particular mineralized wood chips, has proven to be very suitable in order to achieve the increase of the soundproofing effect.
  • Investigations of the soundproofing effect of noise protection cassettes have shown that even relatively small gaps between the sound-absorbing filling material and the box profile result in a very large proportion of the sound passing through the air-filled gaps and correspondingly reducing the soundproofing effect.
  • the curable casting compound after hardening forms a continuous soundproofing layer which is connected in a sound-impermeable manner to the box profile.
  • a sound insulating layer may be applied to one side of the absorbent layer.
  • Such a continuous soundproofing layer can be realized in particular in that the casting compound extends over the full cross-section of the box profile from the top of the box profile to the bottom of the box profile and / or from the left side of the box profile to the right side of the box profile.
  • the box profile is substantially completely filled with the sound-absorbing filling material, so that the soundproofing layer formed by the hardened casting compound initially hollow Completely filled box profile with its open or closed cross-section.
  • the noise protection cassette is formed in the manner of a composite component, that is, the noise protection cassette consists of a composite of the box profile with the cured casting material.
  • the mechanical stability of the noise protection cassette of such a composite component is then no longer determined only by the box section, but results from the composite of the box profile with the cured casting material therein.
  • the curable molding composition can be made so stable that e.g. comes with an extruded profile as the upper and lower degree. Then the composite properties are fully exploited. This can also be trained such that you install only flat profiles as connector or stiffening webs.
  • the box profile should have at least on an outer surface a defined connection formation of a butt joint.
  • a butt joint two adjacently arranged box profiles can then be brought into abutment directly or indirectly against one another, wherein the passage of sound waves through the butt joint is largely precluded. This can be achieved in particular by arranging sealing elements in the butt joint.
  • Extensible sound-impermeable butt joints can be realized in particular in that the connection between the box profiles is formed by a recess or projection with respect to the outside of the box profile.
  • so-called groove and Spring connections very well suited to realize corresponding butt joints in a simple manner.
  • a sound-absorbing and / or sound-insulating surface structure can be provided.
  • the outer surface of the box profile for example, have a hole structure.
  • box sections for use in the production of noise protection cassettes according to the invention there are a variety of ways. Particularly simple and inexpensive box profiles can be made if they are composed of several profile elements, such as rolled sheet metal sections.
  • the box profile of the noise protection cassette itself may be made of metal, in particular of aluminum sheet or plastic, in particular of a fiber-reinforced polymer (GRP), or wood.
  • GRP fiber-reinforced polymer
  • the box section can also be made of high-strength concrete. If suitable concrete types are used, wall thicknesses of the concrete box profile in the range from 10 mm to 25 mm can be achieved.
  • the concrete can be extruded cost to produce the box section.
  • the concrete has the advantage that also the box profile has very good sound insulation properties and flutter effects, as they can occur in sheet metal profiles eliminated.
  • the concrete can be additionally reinforced with reinforcing fibers, such as metal fibers.
  • Fig. 1 shows a noise barrier 01, consisting of several superposed noise protection cassettes 02, which are mounted between two lateral mounting post 03.
  • Fig. 2 shows a noise protection cassette 02 in cross section along the section line II.
  • the outer shell and thus the geometric shape of the noise protection cassette 02 is formed by a box section 04, which is made of several aluminum sheet profile sections.
  • the interior of the box section 04 is completely filled with a hardened casting compound 04.
  • the curable casting compound 05 consists of wood chip concrete, that is, of a concrete mass 06, the mineralized wood chips 07 are added as lignocellulosic aggregate.
  • the box profile 04 with the hardened casting compound 05 forms a composite component whose mechanical properties result from the synergistic combination of box profile and casting compound.
  • an outer surface 08 is formed in each case as a groove, on which the opposite outer surface 09 can be inserted with a spring formed thereon, in order to form a substantially sound-impermeable joint 10 in this way.
  • the outer surface 11 is also provided with a hole structure 12. Through the fine holes of the hole structure 12 of the impacting sound can be passed directly to the cured casting 05.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Building Environments (AREA)
EP09009478.0A 2008-08-13 2009-07-22 Cassette antibruit Withdrawn EP2157242A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200820010836 DE202008010836U1 (de) 2008-08-13 2008-08-13 Lärmschutzkassette

Publications (2)

Publication Number Publication Date
EP2157242A2 true EP2157242A2 (fr) 2010-02-24
EP2157242A3 EP2157242A3 (fr) 2013-10-30

Family

ID=39869385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09009478.0A Withdrawn EP2157242A3 (fr) 2008-08-13 2009-07-22 Cassette antibruit

Country Status (2)

Country Link
EP (1) EP2157242A3 (fr)
DE (1) DE202008010836U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL422513A1 (pl) * 2017-08-09 2019-02-11 Bogumił Sawicki Kaseta panelu dźwiękochłonnego i sposób jej produkcji

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106592453B (zh) * 2016-12-29 2022-06-24 范瑶飞 一种多用途市政道路隔离带
AT525271B1 (de) * 2021-09-02 2023-02-15 Birgit Van Duyvenbode Schallschutzelement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9105831U1 (de) 1991-05-10 1991-08-08 Colberg Metall-, Stahl- und Kunststofftechnik GmbH, 3150 Peine Element einer Lärmschutzwand
DE10310202A1 (de) 2003-03-06 2004-09-16 Maas-Gmbh Lärmschutzwand

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631582B1 (fr) * 1988-05-20 1990-12-28 Guetta Claude Panneaux composites rigides prefabriques, procede de fabrication et applications de ceux-ci
US5272284A (en) * 1991-07-10 1993-12-21 Carsonite International Corp. Sound barrier
FR2765907B1 (fr) * 1997-07-10 1999-09-03 Socarel Panneaux modulaires absorbants et ecrans anti-bruit integrant de tels panneaux
EP1388611A4 (fr) * 2001-05-17 2009-07-01 Toray Industries Mur insonorise en frp et procede de production correspondant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9105831U1 (de) 1991-05-10 1991-08-08 Colberg Metall-, Stahl- und Kunststofftechnik GmbH, 3150 Peine Element einer Lärmschutzwand
DE10310202A1 (de) 2003-03-06 2004-09-16 Maas-Gmbh Lärmschutzwand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL422513A1 (pl) * 2017-08-09 2019-02-11 Bogumił Sawicki Kaseta panelu dźwiękochłonnego i sposób jej produkcji

Also Published As

Publication number Publication date
EP2157242A3 (fr) 2013-10-30
DE202008010836U1 (de) 2008-10-16

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