DE1709322B2 - Sound absorbing component - Google Patents

Sound absorbing component

Info

Publication number
DE1709322B2
DE1709322B2 DE19681709322 DE1709322A DE1709322B2 DE 1709322 B2 DE1709322 B2 DE 1709322B2 DE 19681709322 DE19681709322 DE 19681709322 DE 1709322 A DE1709322 A DE 1709322A DE 1709322 B2 DE1709322 B2 DE 1709322B2
Authority
DE
Germany
Prior art keywords
sound insulation
frequency
glass plate
glass
absorbing component
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.)
Ceased
Application number
DE19681709322
Other languages
German (de)
Other versions
DE1709322A1 (en
Inventor
Nils Stig Peroy Moelndal Ingemansson
Joergen Rasmus Kollered Larsen
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.)
INGEMANSSONS INGENJOERSBYRAE GOETEBORG (SCHWEDEN) AB
Original Assignee
INGEMANSSONS INGENJOERSBYRAE GOETEBORG (SCHWEDEN) AB
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 INGEMANSSONS INGENJOERSBYRAE GOETEBORG (SCHWEDEN) AB filed Critical INGEMANSSONS INGENJOERSBYRAE GOETEBORG (SCHWEDEN) AB
Publication of DE1709322A1 publication Critical patent/DE1709322A1/en
Publication of DE1709322B2 publication Critical patent/DE1709322B2/en
Ceased legal-status Critical Current

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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • 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
    • 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
    • E04C2/54—Slab-like translucent elements
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • 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
    • 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
    • E04B2001/8466—Solid slabs or blocks layered with an intermediate layer formed of lines or dots of elastic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein schalldämmendes Bauelement, bestehend aus mindestens einer Glasplatte, die eine Mindeststärke von 6 mm aufweist.The invention relates to a sound-absorbing component, consisting of at least one glass plate, which has a minimum thickness of 6 mm.

In der Bauakustik gelten in dem Frequenzbereich von 100-3150 Hz bestimmte Forderungen hinsichtlich der Schalldämmung. Die Schalldämmung ist frequenzabhängig. Bei Plattenstärken unter 4 mm ist die Luftschalldämmung für eine gegebene Frequenz nur von dem Gewicht der Platte pro Flächeneinheit abhängig. Die Größe der Schalldämmung R wächst bei jeder Verdoppelung der Frequenz um 6 dB, und zwar nach der FormelIn building acoustics, certain requirements with regard to sound insulation apply in the frequency range of 100-3150 Hz. The sound insulation is frequency dependent. For panels with a thickness of less than 4 mm, the airborne sound insulation for a given frequency only depends on the weight of the panel per unit area. The size of the sound insulation R increases with each doubling of the frequency by 6 dB, according to the formula

R = 20logMs + 20log/-49 dB. (1) R = 20log M s + 20log / -49 dB. (1)

Dabei ist mit / die Frequenz in Hz und mit Ms das Gewicht pro Flächeneinheit in kp/m2 bezeichnetThe frequency in Hz is denoted by / and the weight per unit area in kp / m 2 is denoted by Ms

Bis zu Plattenstärken von 4 mm ist bei allen Frequenzen die Luftschalldämmung nur von dem Flächengewicht der Platten abhängig.Up to panel thicknesses of 4 mm, the airborne sound insulation is only of that at all frequencies Depending on the weight of the panels.

Bei Platten oder Scheiben mit einer Dicke über 4 mm ist die Schalldämmung in dem vorstehend angegebenen Frequenzbereich auch von der Steifheit der Platte abhängig. Im Bereich der Koinzidenzfrequenz fc ist die Schalldämmung geringer als nach der vorstehend angegebenen Formel. Die Koinzidenzfrequenz der Platte wird nach der FormelIn the case of panels or panes with a thickness of more than 4 mm, the sound insulation in the frequency range specified above is also dependent on the stiffness of the panel. In the area of the coincidence frequency f c , the sound insulation is lower than according to the formula given above. The coincidence frequency of the plate is given by the formula

1,83 · 10*1.83 · 10 *

gingin

HzHz

berechnet, in der Ms das Gewicht der Platte pro Flächeneinheit in kp/m2 und B die Biegesteifigkeit der Platte bezogen auf eine Breite von einem Meter in Nm (Newton meter) bezeichnet.calculated, in which Ms is the weight of the plate per unit area in kp / m 2 and B is the flexural rigidity of the plate based on a width of one meter in Nm (Newton meters).

Bei einer 6 mm dicken Platte liegt die Koinzidenzfrequenz fc bei etwa 2500 Hz, d. h. etwas unterhalb der Frequenz von 3150 Hz. Bei einer dickeren Platte mit einer Koinzidenzfrequenz unter 2500 Hz wird die Schalldämmung im Bereich der Koinzidenzfrequenz so stark herabgesetzt, daß sie nur geringen Anforderungen genügt. Das hat zur Folge, daß man eine befriedigende Schalldämmung nur bis zu einer Plattenstärke von etwa 6 mm erzielen kann.With a 6 mm thick panel, the coincidence frequency fc is around 2500 Hz, i.e. slightly below the frequency of 3150 Hz. With a thick panel with a coincidence frequency below 2500 Hz, the sound insulation in the range of the coincidence frequency is reduced so much that it only requires minimal requirements enough. As a result, a satisfactory sound insulation can only be achieved up to a panel thickness of about 6 mm.

Nach der Formel (2) ist die Koinzidenzfrequenz des aus mehreren Glasscheiben bestehenden Verbundelements nicht niedriger als die der dicksten Glasplatte des Elements, weil das Verhältnis Ms/B praktisch unverändert bleibt.According to the formula (2), the coincidence frequency of the composite element consisting of several glass sheets is not lower than that of the thickest glass plate of the element because the ratio Ms / B remains practically unchanged.

Aus dem ÜT-Gbm 17 33 482 ist es bekannt, daß sich übliche Verbundgläser, die aus zwei unter Zwischenlage einer Kunststoffschicht miteinander verbundenen Glasplatten bestehen, auch zu Zwecken der Schalldämmung eignen.From the ÜT-Gbm 17 33 482 it is known that Usual laminated glasses, which consist of two glass plates connected to one another with a plastic layer in between exist, also suitable for purposes of sound insulation.

Gemäß den Beispielen dieses Gebrauchsmusters wurden Glasscheiben von etwa 0,8 bis 1 mm Stärke verwendet Die sich bei Glasplatten von etwa 0,8 mm bis 1 mm Stärke verwendet Die sich bei Glasplatten vonAccording to the examples of this utility model, panes of glass about 0.8 to 1 mm thick were made used Which is used for glass plates of about 0.8 mm to 1 mm thickness The is used for glass plates of

ίο mehr als 6 mm Stärke im Bereich der Koinzidenzfrequenz ergebende Herabsetzung der Luftschalldämmung und die sich hieraus ergebenden Probleme wurden nicht erwähnt
Der vorliegenden Erfindung liegt die Aufgabeίο a reduction in airborne sound insulation resulting in a thickness of more than 6 mm in the area of the coincidence frequency and the problems resulting from this were not mentioned
The present invention has for its object

is zugrunde, bei Glasplatten, die stärker als 6 mm sind, die Herabsetzung der Schalldämmung im Bereich der Koinzidenzfrequenz zu vermeiden, die bei diesen Plattenstärken im Bereich unterhalb 3150 Hz auftrittis based on glass plates that are thicker than 6 mm, the Avoid reducing the sound insulation in the area of the coincidence frequency, which is the case with these Plate thicknesses in the range below 3150 Hz occurs

Erfindungsgemäß wird diese Aufgabe bei einem Bauelement der eingangs angegebenen Art dadurch gelöst, daß die Glasplatte mit einer weiteren Glasplatte durch einen Kunststoff verklebt ist, der so hohe visko-elastische Energieverluste aufweist, daß die Herabsetzung der Luftschalldämmung im Bereich der Koinzidenzfrequenz der mindestens etwa 6 mm starken Glasplatte im wesentlichen kompensiert wird. Durch das erfindungsgemäße Bauelement wird der Koinzidenzeffekt, der eine gravierende Verminderung des Schalldämmwerts im Bereich der Koinaidenzfrequenz zur Folge hat, in dem Frequenzbereich von 100 bis 3150 Hz vermieden. In dem erfindungsgemäßen Bauelement lassen sich daher auch Platten von einer solchen Stärke verwenden, auf die bisher wegen der Verminderung des Schalldämmwerts im Bereich der unter 3150 Hz liegenden Koinzidenzfrequenz verzichtet werden mußte.According to the invention, this object is achieved in a component of the type specified at the outset solved that the glass plate is glued to another glass plate by a plastic that is so high visco-elastic energy losses that the reduction in airborne sound insulation in the area of Coincidence frequency of the at least about 6 mm thick glass plate is substantially compensated. By the component according to the invention is the coincidence effect, a serious reduction in the Sound insulation value in the range of the coincidence frequency results in the frequency range from 100 to 3150 Hz avoided. In the component according to the invention, plates from such can therefore also be used Use strength that was previously due to the reduction in the sound insulation value in the area of the under 3150 Hz coincidence frequency had to be waived.

Wird gemäß der Erfindung eine mindestens 6 mm starke Glasplatte mit einer weiteren Glasplatte durch einen Kunststoff mit hohem Verlustfaktor verklebt, und dadurch das Schalldämmungstal beseitigt, gilt immer die Formel (2). Die Wahl von Glasplatten, die stärker als 6 mm sind, und die dadurch bewirkte entsprechende Herabsetzung der Koinzidenzfrequenz führt aber nicht zu einer wesentlichen Herabsetzung der Schalldämmung des Bauelements, so daß man hinsichtlich der Stärke der Glasplatten nicht länger auf den Bereich unter 6 mm beschränkt ist. Glasplatten mit einer Stärke über 6 mm sind manchmal nicht nur aus Schallisolierungs-, sondern auch beispielsweise aus Festigkeitsgriinden erwünscht. Um einer dicken Glasplatte das erforderliche Energieabsorptionsvermögen zu verlei-■ hen, genügt es, diese mit einer dünneren Glasscheibe durch einen Kunststoff mit hohen visko-elastischen Energieverlusten zu verkleben.According to the invention, a glass plate with a thickness of at least 6 mm is passed through with another glass plate glued a plastic with a high loss factor, thereby eliminating the soundproofing valley, always applies Formula (2). The choice of glass plates that are thicker than 6 mm, and the resulting corresponding However, a reduction in the coincidence frequency does not lead to a significant reduction in the sound insulation of the component, so that the thickness of the glass plates is no longer on the area is limited to less than 6 mm. Glass plates with a thickness of more than 6 mm are sometimes not only made of soundproofing, but also desirable for reasons of strength, for example. To a thick sheet of glass that To give the necessary energy absorption capacity, it is sufficient to use a thinner pane of glass to stick by a plastic with high visco-elastic energy losses.

Der verwendete Klebstoff muß eine einwandfrei durchsichtige Zwischenschicht bilden und im Innern des aus den Glasscheiben gebildeten Verbundelements zu visko-elastischen Energieverlusten führen. Derartige Klebstoffe auf Kunststoffbasis, beispielsweise ein Vinyl-Acetat-Mischpolymerisat, sind im Handel erhältlich. Infolge der Innenverluste des Verbundelemehts wird die Herabsetzung der Schalldämmung im Bereich der Koinzidenzfrequenz kompensiert, so daß Glas in jeder beliebigen Stärke verwendet werden kann.The adhesive used must form a perfectly transparent intermediate layer and inside the Composite elements formed from the glass panes lead to visco-elastic energy losses. Such Plastic-based adhesives, such as a vinyl acetate copolymer, are commercially available. As a result of the internal losses of the composite element, the reduction in sound insulation in the area compensated for the coincidence frequency so that glass of any thickness can be used.

Claims (1)

Patentanspruch:Claim: Schalldämmendes Bauelement, bestehend aus mindestens einer Glasplatte, die eine Mindeststärke von 6mm aufweist, dadurch gekennzeichnet, daß die Glasplatte mit einer weiteren Glasplatte durch einen Kunststoff verklebt ist, der so hohe visko-elastische Energieverluste aufweist, daß die Herabsetzung der Luftschalldämmung im Bereich der Koinzidenzfrequenz der mindestens etwa 6 mm starken Glasplatte im wesentlichen kompensiert wird.Sound-absorbing component, consisting of at least one glass plate which has a minimum thickness of 6mm, characterized in that, that the glass plate is glued to another glass plate by a plastic that is so high visco-elastic energy losses that the reduction in airborne sound insulation in the area substantially compensated for the coincidence frequency of the glass plate, which is at least about 6 mm thick will.
DE19681709322 1967-02-09 1968-02-07 Sound absorbing component Ceased DE1709322B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE182867A SE323493B (en) 1967-02-09 1967-02-09

Publications (2)

Publication Number Publication Date
DE1709322A1 DE1709322A1 (en) 1972-03-09
DE1709322B2 true DE1709322B2 (en) 1978-04-06

Family

ID=20258908

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19681709322 Ceased DE1709322B2 (en) 1967-02-09 1968-02-07 Sound absorbing component
DE19681658890 Expired DE1658890C3 (en) 1967-02-09 1968-02-07 Sound-absorbing component made from glass panels

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19681658890 Expired DE1658890C3 (en) 1967-02-09 1968-02-07 Sound-absorbing component made from glass panels

Country Status (6)

Country Link
BE (1) BE710517A (en)
DE (2) DE1709322B2 (en)
DK (1) DK123878B (en)
GB (2) GB1223540A (en)
NO (1) NO120894B (en)
SE (1) SE323493B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE344093B (en) * 1970-05-28 1972-03-27 Akustikbyran Ab
CH615244A5 (en) * 1976-05-20 1980-01-15 Cardinale Raffaele
US4041663A (en) * 1976-07-30 1977-08-16 Ppg Industries, Inc. Reducing solar radiation transmittance of installed glazing
ES2041472T3 (en) * 1989-07-13 1993-11-16 Degussa Aktiengesellschaft PLATES SUITABLE AS NOISE PROTECTIVE ELEMENTS BASED ON ACRYLIC GLASS.

Also Published As

Publication number Publication date
GB1222092A (en) 1971-02-10
DE1658890A1 (en) 1970-07-09
DE1709322A1 (en) 1972-03-09
DE1658890C3 (en) 1975-07-24
GB1223540A (en) 1971-02-24
DK123878B (en) 1972-08-14
NO120894B (en) 1970-12-21
BE710517A (en) 1968-06-17
SE323493B (en) 1970-05-04

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