EP3785256A1 - Schallabsorbierendes aussenbauteil einer fassade eines gebäudes - Google Patents
Schallabsorbierendes aussenbauteil einer fassade eines gebäudesInfo
- Publication number
- EP3785256A1 EP3785256A1 EP19720828.3A EP19720828A EP3785256A1 EP 3785256 A1 EP3785256 A1 EP 3785256A1 EP 19720828 A EP19720828 A EP 19720828A EP 3785256 A1 EP3785256 A1 EP 3785256A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- chamber
- perforated sheet
- exterior component
- absorbing
- 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
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/007—Outer coverings for walls with ventilating means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0867—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
Definitions
- the application relates to a sound-absorbing exterior component of a facade of buildings for sound absorption of sound waves arriving from urban space on the component (external noise).
- Noise protection walls are only partially usable in sometimes cramped conditions, eg in the streets of built-up areas, or they remain almost ineffective.
- Horizontal surfaces such as roads and sidewalks are subject to high mechanical and weathering stress, so that further, even acoustic functions can be integrated only to a limited extent.
- a very large "urban area" with hitherto neglected acoustic potential represent facades of buildings and other vertical surfaces of transport and infrastructure structures Designing the acoustic functionality of building facades is but so far mostly considered only with an acoustic purpose and in one direction:
- Facade surface used and designed to improve the interior acoustics by using sound absorbers to reduce the reverberation time in the room.
- Numerous solutions or sound absorbers are proposed for this, all the way to transparent ones
- Microperforated surface elements are sufficient to absorb sound in front of glass surfaces on the room side.
- Noise barriers are known, offer known options, quite high To achieve sound absorption levels. With approx. 50 mm thick layers of optimized open-porous materials, this is feasible, even with different coatings and covers for protection or design purposes. Sound absorbers based on resonance systems are hardly used alone since they do not fulfill the broadband absorption spectrum that is usually specified. However, in combination with porous materials, resonance-type absorbers can improve broadbandness.
- the challenge is to enable sound to enter the facade with additional sound-absorbing components.
- Another challenge lies from the acoustic point of view in the adjustment or optimization bid.
- the sound absorption spectrum must as far as possible correspond to the noise spectrum and the highest possible sound absorption effect is achieved for the sound incidence angle range applicable in urban areas. For example, it should be noted where and in what spatial context sound propagates and how it alters its spectral composition.
- a dense or perforated membrane Space behind the perforated cover is a dense or perforated membrane arranged. Behind the membrane is a ribbed or continuous air space, which is closed at the back of the plate by the plate back wall.
- Object of this invention is therefore a sound-absorbing exterior component with building physics and architectural integrated sound absorption capacity
- the sound-absorbing outer component which serves for sound absorption of the external noise.
- the sound-absorbing outer component is designed such that all protective functions (for example, wind and rain, heat and humidity u.v.a.m.) and the architectural
- Proposed is a sound-absorbing exterior part of a facade of a
- a perforated sheet (4) e.g. made of metal, glass, wood, plastics and other composite materials,
- Another sheet (6) for example, from textile, film or membrane-like materials or corresponding composites thereof, with a specific
- To the further fabric (6) includes a porous layer (7), for example of open-porous fibrous, foamed, non-woven or hauftechniksporigen materials, with a length-related flow resistance between 5,000 and 50,000 Pa s / m 2 at.
- a porous layer (7) for example of open-porous fibrous, foamed, non-woven or hauftechniksporigen materials, with a length-related flow resistance between 5,000 and 50,000 Pa s / m 2 at.
- the sound-absorbing outer component comprises two acoustically independently effective, but coordinated systems, which are located between an inner space (1) or its outer wall (2) and the outer space (3). That the
- Exterior space that is, as a rule, the urban space, facing system sets
- Plohlraumresonanzsystem which contains a perforated sheet (4) on the outer space (3) facing the outside and a chamber located behind it (5) in the manner of an air layer or air spring.
- a perforated sheet (4) on the outer space (3) facing the outside and a chamber located behind it (5) in the manner of an air layer or air spring.
- the system already has a sound absorption that depends on the design parameters of the perforated
- the sound absorption coefficient of this resonance system can not have the high and broadband characteristics, eg of the order of magnitude of highly absorbent noise barriers (eg according to the Additional Technical Terms of Contract and Guidelines for the construction of noise barriers on roads, ZTV-Lsw06), as required for a significant noise reduction effect ,
- a on the perforated sheet (4) facing away from the chamber (5) befindliches is another Fabric (6) with exactly matching features required, followed by a porous layer (7) connects.
- the desired broadband sound absorption is achieved by an interaction of the perforated and the further sheet and the porous layer and the chamber.
- specific, acoustically relevant parameters of the components involved are necessary for this.
- impedance model has to be considered. It is true that the acoustic impedance at the surface of the ventilated ventilated component determines the reflection factor, which in turn leads to the degree of sound absorption.
- the appropriate acoustic adjustment and adjustment of the parameters of the individual components of the ventilated curtain wall is carried out by means of impedance
- the perforated sheet (4) acts as a protection against weather and mechanical stress from the outside. It is therefore made of durable and stable materials.
- the chamber (5) serves the through- or rear ventilation, in order to ensure desiccation of the porous layer (7), which in turn serves the thermal insulation of the building.
- the other fabric (6) must be open to diffusion and have a high resistance to water and air entry. These functions must be fulfilled to meet standardized requirements. That is, the optimization task in terms of sound absorption receives further dimensions in the form of other building physics parameters. This complexity makes it difficult to consistently determine suitable acoustic parameters of the components of the ventilated ventilated component. These are in the sense of an architectural and constructive scope of action value ranges or adaptation possibilities of the acoustic parameters desirable to the acoustic effect of the curtain ventilated component with little effort and externally barely recognizable
- the hole area fraction is the quotient of perforated area and total area and can theoretically be between 0 (closed) and almost 1 (almost completely open).
- a perforated surface portion of perforated sheets for sound absorbers already from about 0.01, such as in micro-perforated sound absorbers - possible, but it can also reach high levels, e.g. in wire mesh or
- the class W1 is met in the passage of water, if a material withstood two hours of a 200 mm water column, while sufficient to meet the class W2, if in such a water column of 200 mm, the amount of water passed is less than 100 ml / m 2 is.
- the material definition of the porous layer (7) by means of the length-related flow resistance in this case. It is, as already stated, acoustically a significant factor in sound absorption. As a result of the required high thermal insulation, this layer is usually much thicker than acoustic is necessary, the specific flow resistance is not suitable here.
- the length-related flow resistance of the porous layer (7) is between 5,000 and 50,000 Pa s / m 2 . This range of values allows in close coordination with the specific flow resistance of the other fabric (6) the use of different insulation materials, eg for weight or cost reasons. With these characteristics described so far, it is possible to design a sound-absorbing exterior component for buildings that arrives from the urban space on the component
- the chamber used for ventilation is essential for a facade, but not required for a noise barrier or attached to a tunnel wall sound-absorbing device.
- the serving for ventilation chamber (5) is preferably vertically as unhindered flow through. In this case, no lateral boundaries are required. Basically, only for mechanical attachment of the perforated sheet (4) fasteners on the remainder of the façade, which should be designed so as not to interfere with the function of the ventilation.
- the perforated sheet (4) contains on its side facing the chamber (5) a layer (8) which is a few millimeters thick, e.g. from textile, film or membrane-like materials or corresponding composites thereof whose specific flow resistance, divided by the area of the perforated surface of the perforated sheet (4), has a value between 300 and 500 Pa s / m.
- the thin layer (8) is usually not more than 5 mm thick. The person skilled in the art can determine a suitable value on the basis of the information described here.
- a number of acoustic design variants concern the perforated sheet (4).
- thin layer (8) on the chamber (5) side facing the perforated sheet (4) control the sound absorption.
- the thin layer can be applied for example by coating, gluing or clothing.
- Layer should, divided by the hole surface portion of the perforated sheet (4), have a value between 300 and 500 Pa s / m.
- an additional perforated sheet is located on the side of the thin layer (8) facing the chamber (5).
- the thin layer can be protected from mechanical stress.
- the openings of the perforated sheet (4) have a flush filling with porous material (9).
- perforated elements always have a plurality of openings, since the perforations are also considered as openings. If the openings, as in the present embodiment, are flush-filled with porous material, the external appearance of a flat, closed surface results. The acoustic effect is comparable to that of the thin layer (8).
- the perforated sheet (4) is inclined outwardly from the vertical.
- a low inclination is sufficient.
- the perforated sheet from the bottom coming outwards, ie away from the building be inclined.
- a non-perforated sheet may lead back towards the building.
- the openings of the perforated sheet (4) have an oblique orientation downwards.
- the openings of the perforated sheet (4) have an oblique orientation downwards.
- the chamber (5) has vertical sound absorbing strips (10) for damping the cavity. As a rule, these should be arranged in such a way that the rear ventilation is not impeded or as little as possible obstructed.
- in the chamber (5) are devices for
- Air cleaning (1 1) including fans and filters. With such facilities, the ventilation can be improved. In addition, under certain circumstances, from the Outdoor space, mostly polluted urban space, air sucked and cleaned.
- the porous layer (7) is at least one
- vapor diffusion open release layer (12) e.g. from textile, film or membrane-like materials or corresponding composites thereof, divided into at least two layers with different properties.
- the two layers can be formed of different materials. This can make it easier to meet all acoustic and other building physics requirements.
- the separating layer (12) usually has a high resistance to air passage and water passage, so meets the above classes W1 and W2. A high resistance against air passage can be regarded as fulfilled, if the
- Fig. 1 Exemplary embodiment of the curtain ventilated according to the invention
- Fig. 4 Exemplary embodiment of the component according to the invention with a
- FIG. 5 Exemplary embodiment of the component according to the invention with a
- Fig. 6 Exemplary embodiment of the component according to the invention with obliquely downward-oriented openings of the perforated sheet 4
- FIG. 7 Exemplary embodiment of the device according to the invention with vertical
- FIG. 1 shows an interior 1 of a building, which is separated from the exterior 3 by a wall 2. On the outside space 3 borders the perforated
- FIG. 1 aeration serving chamber 5, to which a further perforated layer 6 connects. This is followed by a porous layer 7, which adjoins the wall 2 of the building.
- FIGS. 2 to 9 only the differences to FIG. 1 are mentioned.
- FIG. 2 differs from FIG. 1 in that a thin layer 8 is attached to the perforated layer 4 on the side facing the chamber 5.
- the thin layer 8 is also protected by a perforated layer on the side facing the chamber.
- the openings of the perforated sheet 4 are filled with porous material 9 flush.
- FIG. 5 shows an embodiment in which the perforated sheet 4 is inclined from the vertical outwards, that is to say from below, away from the building.
- FIG. 6 shows an embodiment in which the openings of the perforated sheet lead obliquely downwards.
- FIG. 7 shows vertical sound-absorbing strips 10 in the chamber 5.
- a device 1 1 for air purification is shown in the chamber 5, which has fans and filters.
- FIG. 9 shows an embodiment in which the porous layer 7 is subdivided into two layers having different properties by a separating layer 12 which is open to water vapor diffusion and has high resistance to the passage of air and water.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018110008.6A DE102018110008A1 (de) | 2018-04-25 | 2018-04-25 | Schallabsorbierendes Außenbauteil für Gebäude |
| PCT/EP2019/060673 WO2019207071A1 (de) | 2018-04-25 | 2019-04-25 | Schallabsorbierendes aussenbauteil einer fassade eines gebäudes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3785256A1 true EP3785256A1 (de) | 2021-03-03 |
| EP3785256B1 EP3785256B1 (de) | 2025-05-28 |
| EP3785256C0 EP3785256C0 (de) | 2025-05-28 |
Family
ID=66349522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19720828.3A Active EP3785256B1 (de) | 2018-04-25 | 2019-04-25 | Schallabsorbierendes aussenbauteil einer fassade eines gebäudes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3785256B1 (de) |
| DE (1) | DE102018110008A1 (de) |
| WO (1) | WO2019207071A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29512787U1 (de) * | 1995-08-09 | 1995-10-12 | Dürr Metalltechnik, 72116 Mössingen | Lärmschutzeinrichtung, insbesondere für Straßenränder und Untertunnelungen |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1695391U (de) * | 1952-05-16 | 1955-03-24 | Nordwestdeutscher Rundfunk Ans | Schallschluckplatte. |
| DE1712145U (de) * | 1954-07-22 | 1955-12-01 | Martin Dipl Ing Zappe | Schallschluckendes bauelement. |
| DE3032947A1 (de) * | 1980-09-02 | 1982-04-15 | Siebel, Lothar, 5100 Aachen | Schallabsorbierend angebrachte fassadenplatten |
| JPH0325108A (ja) * | 1989-06-20 | 1991-02-01 | Kawatetsu Steel Prod Corp | 吸音壁体構造 |
| EP1391570A2 (de) * | 2002-08-21 | 2004-02-25 | Moeding Keramikfassaden GmbH | Wandkonstruktion und Fassadenplatte |
| DE102008062703A1 (de) * | 2008-12-17 | 2010-07-01 | Airbus Deutschland Gmbh | Flugzeugkabinenpaneel zur Schallabsorption |
| DE102011055009B4 (de) * | 2011-11-03 | 2018-12-20 | AAINA GmbH | Schallschutz-Wandaufbau für ein Bauwerk oder ein Bauteil in Metallleichtbauweise, das mit Solarzellen bestückt ist |
| JP5957622B2 (ja) * | 2014-01-28 | 2016-07-27 | 日本板硝子環境アメニティ株式会社 | 吸音パネル及び防音壁設備 |
| JP6791620B2 (ja) * | 2015-08-25 | 2020-11-25 | 東急建設株式会社 | 吸音構造 |
| RU2647542C2 (ru) * | 2016-07-11 | 2018-03-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Тольяттинский государственный университет" | Шумозащитный экран |
-
2018
- 2018-04-25 DE DE102018110008.6A patent/DE102018110008A1/de active Pending
-
2019
- 2019-04-25 EP EP19720828.3A patent/EP3785256B1/de active Active
- 2019-04-25 WO PCT/EP2019/060673 patent/WO2019207071A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29512787U1 (de) * | 1995-08-09 | 1995-10-12 | Dürr Metalltechnik, 72116 Mössingen | Lärmschutzeinrichtung, insbesondere für Straßenränder und Untertunnelungen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3785256B1 (de) | 2025-05-28 |
| WO2019207071A1 (de) | 2019-10-31 |
| EP3785256C0 (de) | 2025-05-28 |
| DE102018110008A1 (de) | 2019-10-31 |
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