EP0540704A1 - Agencement reduisant l'energie acoustique s'irradiant a partir d'un mur massif - Google Patents

Agencement reduisant l'energie acoustique s'irradiant a partir d'un mur massif

Info

Publication number
EP0540704A1
EP0540704A1 EP19920909555 EP92909555A EP0540704A1 EP 0540704 A1 EP0540704 A1 EP 0540704A1 EP 19920909555 EP19920909555 EP 19920909555 EP 92909555 A EP92909555 A EP 92909555A EP 0540704 A1 EP0540704 A1 EP 0540704A1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
wall
insulation
boards
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Withdrawn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
EP19920909555
Other languages
German (de)
English (en)
Inventor
Hans Dietrich Sulzer
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 EP0540704A1 publication Critical patent/EP0540704A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered

Definitions

  • the present invention relates to an arrangement for reducing the sound radiation from a solid wall or the like. With insulation panels arranged in front of the wall.
  • a wall, a ceiling or a floor slab generally has good insulation and damping properties if its surface weight and the dissipation of structure-borne sound waves in it are large, but their so-called bending stiffness is low.
  • the dependence of the sound insulation properties of a wall on its basis weight is called the "mass law. The above parameters must be met in combination.
  • a solid concrete wall has a relatively large weight per unit area, its sound insulation is low, because on the one hand it has a very high bending stiffness (high modulus of elasticity) and on the other hand it has poor damping properties for structure-borne sound waves.
  • the weight per unit area of an already very heavy, load-bearing wall can only be increased insignificantly by additional weighting and also the bending stiffness of such a wall, for example due to the introduction of grooves or the like, is usually not possible for reasons of stability, the reduction becomes ⁇ tion of the sound radiation from solid walls usually made use of a so-called facing shell.
  • the three criteria of basis weight, bending stiffness and dissipation capacity apply.
  • the distance between the wall to be insulated and its facing and the material between these two components is also important.
  • the basis weight of the facing shell and its distance from the wall to be insulated also determine the resonance frequency at which an oscillation of the two components can be easily excited against each other.
  • the resonance frequency is approximately inversely proportional to the square root of the basis weight and the square root of the distance mentioned. Since the sound insulation of the system consisting of the facing shell and the wall to be insulated is worse than that of the wall alone without the facing shell in the region of the resonance frequency, attempts are made to select the parameters of the facing shell by a suitable choice, in particular by their distance from the wall to be insulated to depress the resonance frequency to an acoustically relatively uncritical value below 100 Hz. State of the art
  • battens are mostly applied to the wall to be insulated.
  • the spaces between the slats are provided with a soft, resilient material such as mineral fiber wool.
  • Hardboard and / or plasterboard are screwed onto the battens.
  • the typical distance between the two wall parts is approximately 50 mm.
  • the total thickness of the facing shell is therefore not less than 70 mm, rather 80 mm to 90 mm.
  • the object of the invention is in particular to provide an arrangement for reducing the sound radiation from a solid wall or the like.
  • insulation panels arranged in front of the wall which can be constructed with at least the same effectiveness with a much smaller thickness than the known facing shells. According to the invention, this object is achieved by an arrangement having the features specified in patent claim 1.
  • the arrangement according to the invention is accordingly characterized in that insulation boards are used which have no direct contact with one another at the edge, which have a density comparable to the density of the solid wall, which is between that facing the wall and that facing away from the wall ⁇ have sound-permeable pores on the side and which are provided on their last-mentioned side with a plaster layer covering the spaces between them.
  • a continuous wall surface is formed only by the plaster layer applied to the insulation boards. Because the insulation boards mutually do not touch, they form an interrupted layer in which no bending waves affecting the insulation can spread over a large area.
  • the insulation boards for airborne sound are partially "transparent". Airborne sound radiated from the solid wall can penetrate through the insulation boards to the plaster layer. A conversion into structure-borne noise is not necessary for this.
  • the thickness of the insulation panels therefore contributes to the distance between the wall parts which are capable of vibrating with respect to one another which is essential for the resonance frequency. In the arrangement according to the invention, with a sufficient number of pores in the insulation boards, this distance is essentially determined by the distance between the wall to be insulated and the outer plaster layer.
  • the insulation boards have a density comparable to the density of the solid wall, they are relatively heavy, i.e. they have a high weight per unit area. In contrast to the above-mentioned distance, the insulation boards form a uniform layer with respect to the weight per unit area with the preferably also very heavy plaster layer, which according to the law of mass has good insulation properties. Since the resonance frequency mentioned is, in addition to the distance, also inversely proportional to the square root of the basis weight, the high basis weight of the combined layer of insulation boards and plaster layer also contributes to keeping the above-mentioned distance and thus the total thickness of the arrangement according to the invention small can.
  • FIG. 1 shows a section of a section of a solid wall with an arrangement according to the invention arranged in front of it in order to reduce its sound radiation.
  • FIG. 2 in perspective an insulation board according to the invention
  • FIG. 3 is a perspective view of another insulation board after the invention
  • FIG. 4 is a perspective view of a section of a solid wall with insulation boards attached to it and partially covered with a plaster layer according to FIG. 2, and
  • FIG. 5 is a perspective view of a section of a solid wall with insulation panels attached to it and partially covered with a plaster layer according to FIG. 3.
  • 1 denotes a solid wall, which can be, for example, a load-bearing wall of a concrete building.
  • insulation panels 2 are arranged at a mutual distance from each other. They have no direct contact with one another at the edge.
  • the insulation panels are also arranged at a short distance from the wall 1.
  • the resultant between the wall and the insulation panels 2 The cavity can be left filled with air.
  • a soft material can also be arranged in this cavity, for example to keep the body from falling.
  • the soft material 3 being thin
  • spacing layer is applied to the back of the insulation boards.
  • the soft material like the insulation panels, should be air-permeable and thus sound-transparent to a certain extent.
  • strips of soft material e.g. to be provided as a frame on the back of the insulation panels. If these strips only cover a small part of the surface of the insulation panels, they can also consist of a non-air-permeable material. Suitable are e.g. self-adhesive strips on one side, as used for sealing doors and windows.
  • the insulation panels 2 are provided with a continuous plaster layer 4 covering the gaps between them after they have been attached to the wall 1.
  • the insulation panels 2 are fastened individually to the wall by means of pins 5.
  • Each insulation panel 2 can only be attached to the wall or the ceiling with a single, preferably central pin, as shown in FIG. 5.
  • FIG. 2 shows a suitable insulation board with a central hole.
  • the pins can also be arranged at the corners of the insulation boards, as shown in FIG. 5.
  • 3 shows an insulating plate designed for this fastening variant. The tips of the pins can be anchored in wall 1 by means of dowels.
  • the heads of the pins 5 are covered by the outer plaster layer, so that they are not visible from the outside.
  • Between the pins 5 and the insulation panels 2 is preferably one elasto-platical, flexible and energy dissipative material 6 is provided.
  • the distance between the individual insulation boards 2 and / or the distance between the insulation boards 2 and the wall 1, which may be filled with the soft material 3, is preferably smaller than the thickness of the insulation boards.
  • the distances mentioned are e.g. between 2 and 10 mm.
  • the insulation panels 2 preferably consist essentially of heavy granules, whereby stone chips with a grain size between 4-8 mm can be used for the granules. With a preferred thickness between 15 to 20 mm, the insulation boards then have a basis weight of 30 to 40 kg / m 2 .
  • the granules are bound in the insulation boards preferably by means of an elastoplastic plastic binder. Unless excessive and unnecessarily much binder is used to bind the granules, cavities remain between the grains, which are connected to one another and form soundproof, continuous pores between the mutually opposite surfaces of the insulating boards.
  • the plastic binder further preferably contains microscopic, gas-filled, flexible beads.
  • the insulation panels are quite heavy, flexible and sound-dissipative despite their small thickness.
  • the cross-sectional area taken up by the pores in the insulating boards essentially results from the granularity of the granulate used for the insulating boards and should make up at least about 10% of the area of the insulating boards.
  • the plaster layer is also preferably flexible and sound-dissipative.
  • a material commercially available under the name "Baswason" is suitable for the plaster layer, for example. This mainly consists of heavy granules, the granules being stone chips with a grain diameter between 1 and 3 mm, an elasto-plastic plastic binder being preferably used to bind the granules, and the plastic binder preferably being microscopic contains small, gas-filled, flexible beads.
  • the material has a damping coefficient of 0.2 - 0.4 i ⁇ T--, and with a thickness between 4 and 8 mm a basis weight between 5 and 10 kg / m 2 .

Abstract

Afin de réduire l'énergie acoustique s'irradiant à partir d'un mur massif, on fixe sur le mur des panneaux isolants dont les bords ne sont pas en contact direct. Les panneaux isolants ont une densité comparable à celle du mur massif, des pores perméables à l'énergie acoustique et une couche de crépi appliquée sur leur côté ne faisant pas face au mur qui remplit les intervalles entre les panneaux isolants. On peut réaliser un tel agencement qui soit très efficace et très mince, et qui ne fasse donc augmenter que de très peu l'épaisseur du mur.
EP19920909555 1991-05-22 1992-05-13 Agencement reduisant l'energie acoustique s'irradiant a partir d'un mur massif Withdrawn EP0540704A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH151391 1991-05-22
CH1513/91 1991-05-22

Publications (1)

Publication Number Publication Date
EP0540704A1 true EP0540704A1 (fr) 1993-05-12

Family

ID=4212196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920909555 Withdrawn EP0540704A1 (fr) 1991-05-22 1992-05-13 Agencement reduisant l'energie acoustique s'irradiant a partir d'un mur massif

Country Status (2)

Country Link
EP (1) EP0540704A1 (fr)
WO (1) WO1992020881A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737413A (en) * 1927-03-10 1929-11-26 Erola Einar Wall board
DE1162643B (de) * 1960-04-13 1964-02-06 Barry Controls Inc Lastaufnehmendes Bauelement
CH639453A5 (de) * 1978-12-11 1983-11-15 Hawa Ag Bauelement fuer die luftschalldaemmung.
FR2484504A1 (fr) * 1980-02-27 1981-12-18 Dufour Fils Anc Ets Marius Procede d'application d'un revetement souple, eventuellement impermeable, sur une paroi comportant des joints ou fissures, et bande de pontage pour sa mise en oeuvre
GB2126619B (en) * 1982-08-21 1986-05-08 Helm Project Services Limited Insulation mounting
DE3643634A1 (de) * 1986-12-19 1988-06-23 Stotmeister Gmbh Wand-akustikputz
DE3727947A1 (de) * 1987-08-21 1989-03-02 Nuedling Franz C Basaltwerk Schallabsorbierendes bauelement sowie verfahren zur herstellung desselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9220881A1 *

Also Published As

Publication number Publication date
WO1992020881A1 (fr) 1992-11-26

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