CN112012364A - Sound absorption structure and construction method thereof - Google Patents
Sound absorption structure and construction method thereof Download PDFInfo
- Publication number
- CN112012364A CN112012364A CN202010712982.2A CN202010712982A CN112012364A CN 112012364 A CN112012364 A CN 112012364A CN 202010712982 A CN202010712982 A CN 202010712982A CN 112012364 A CN112012364 A CN 112012364A
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- micro
- glass fiber
- aluminum plate
- perforated aluminum
- wall body
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 65
- 239000003365 glass fiber Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 7
- 230000002265 prevention Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- 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
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
-
- 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
-
- 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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor 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
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
-
- 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
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a sound absorption structure and a construction method thereof, wherein the sound absorption structure is arranged along a wall body of a main body structure and comprises the following components: the micro-perforated aluminum plate is fixed on the main body structure and is parallel to the wall body, and a set distance is reserved between the micro-perforated aluminum plate and the wall body; and the glass fiber board is fixed on one side of the micro-perforated aluminum plate close to the wall body, and a cavity is formed between the glass fiber board and the wall body. The invention effectively solves the problem that the sound absorption structure is easy to be affected by damp to influence the sound absorption effect, has better fireproof and moistureproof performance, wide application range and simple structure and is easy to realize.
Description
Technical Field
The invention relates to the field of building construction, in particular to a sound absorption structure and a construction method thereof.
Background
At present, places such as cinemas, theaters, natatoriums or large industrial plants need to use strong sound absorption materials to control indoor reverberation time, porous sound absorption materials with thicker thickness are generally used for realizing low, medium and high frequency full-band sound absorption, then the sound absorption coefficient of the sound absorption materials is reduced after being affected with damp, the expected sound absorption effect can be lost, the sound absorption materials of suspended ceilings need A-level fire prevention, most of the sound absorption materials are difficult to meet the fire prevention requirement, and a small number of the sound absorption materials which can meet the fire prevention requirement have small medium and low frequency sound absorption coefficient, so that the wall surface sound absorption materials are installed too much, and the sound field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a sound absorption structure and a construction method thereof, solves the problem that the sound absorption effect is influenced by the fact that the sound absorption structure is easy to be affected with damp, and has the advantages of good fireproof and moistureproof performance, high sound absorption performance in full frequency band, wide application range, simple structure and easiness in implementation.
The technical scheme for realizing the purpose is as follows:
the invention provides a sound absorption structure, which is arranged at intervals along a wall body of a main body structure and comprises:
the micro-perforated aluminum plate is fixed on the main body structure and is parallel to the wall body, and a set distance is reserved between the micro-perforated aluminum plate and the wall body; and
and the glass fiber board is fixed on one side of the micro-perforated aluminum plate, which is close to the wall body, and a cavity is formed between the glass fiber board and the wall body.
According to the sound absorption structure, the glass fiber plate is arranged on one side of the micro-perforated aluminum plate, the micro-perforated aluminum plate is fixed on the main body structure, the cavity is formed between the micro-perforated aluminum plate and the wall, the glass fiber plate is located between the micro-perforated aluminum plate and the cavity, the micro-perforated aluminum plate can prevent the glass fiber plate from being damped, in addition, the middle-low frequency sound absorption can be enhanced through the cavity, the problem that the sound absorption effect is influenced due to the fact that the sound absorption structure is easily damped is solved, the sound absorption structure has good fireproof and moisture-proof performance, the application range is wide, the.
A further improvement of the sound-absorbing structure according to the invention is that the thickness of the cavity is between 30mm and 40 mm.
The sound absorption structure is further improved in that the micro-perforated aluminum plate has a thickness of 0.45-0.9 mm, a hole diameter of 0.55-1.00 mm and a pitch of 3-7 mm.
A further improvement of the sound-absorbing structure according to the invention is that the micro-perforated aluminium sheet has a perforation rate of 14.7%.
The sound absorption structure is further improved in that a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate close to the wall body, and the glass fiber plate is correspondingly arranged in the limiting frames.
The sound absorption structure is further improved in that the glass fiber plate has a thickness of 10-20 mm and a density of 100k g/m3。
The invention provides a construction method of a sound absorption structure, which comprises the following steps:
providing a micro-perforated aluminum plate and a glass fiber plate, and mounting the glass fiber plate on one side of the micro-perforated aluminum plate;
the side, provided with the glass fiber plate, of the micro-perforated aluminum plate faces the wall body, the micro-perforated aluminum plate is fixed to the main body structure, and a set distance is reserved between the glass fiber plate and the wall body to form a cavity.
The construction method of the sound absorbing structure of the present invention is further improved in that the micro-perforated aluminum sheet has a perforation rate of 14.7%.
The construction method of the sound absorption structure is further improved in that a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate close to the wall body;
and correspondingly installing the glass fiber plate in the limiting frame so as to be fixed on one side of the micro-perforated aluminum plate.
The construction method of the sound absorption structure is further improved in that the glass fiber plate has a thickness of 10-20 mm and a density of 100k g/m3。
Drawings
Fig. 1 is a side sectional view of a sound absorbing structure of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the sound absorption structure and the construction method thereof provided by the invention have the advantages that the glass fiber plate is arranged on one side of the micro-perforated aluminum plate, the micro-perforated aluminum plate is fixed on the main structure and forms a cavity with the wall, the glass fiber plate is positioned between the micro-perforated aluminum plate and the cavity, the micro-perforated aluminum plate can prevent the glass fiber plate from being affected with damp, in addition, the cavity can enhance medium and low frequency sound absorption, the problem that the sound absorption structure is easily affected with damp to affect the sound absorption effect is solved, the sound absorption structure has better fireproof and damp-proof performance, the application range is wide, the structure is simple and easy to realize. The sound absorbing structure of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a side sectional view of a sound absorbing structure of the present invention. The sound absorbing structure of the present invention will be described with reference to fig. 1.
As shown in fig. 1, the sound absorbing structure of the present invention, which is spaced along a wall 11 of a main structure, includes:
the micro-perforated aluminum plate 12 is fixed on the main body structure and is parallel to the wall body 11, and a set distance is reserved between the micro-perforated aluminum plate 12 and the wall body 11; and
and the glass fiber board 13 is fixed on one side of the micro-perforated aluminum plate 11 close to the wall body 12, and a cavity 14 is formed between the glass fiber board 13 and the wall body 11.
Preferably, the glass fiber board 13 is a class a fire-proof and moisture-proof glass fiber board.
More preferably, a 5cm spacing is left between adjacent sound absorbing structures.
As a preferred embodiment of the present invention, the thickness of the cavity is 30mm to 40 mm.
Specifically, the thickness of the micro-perforated aluminum plate is 0.45 mm-0.9 mm, the aperture is 0.55 mm-1.00 mm, and the pitch is 3 mm-7 mm.
Preferably, the micro-perforated aluminum plate has a perforation rate of 14.7%.
Furthermore, a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate 12 close to the wall 11, and the glass fiber plate 13 is correspondingly installed in the limiting frames.
Preferably, the glass fiber plate has a thickness of 10-20 mm and a density of 100k g/m3。
Wherein, the resonance frequency of the micro-perforated aluminum plate is calculated:
perforation rate:
in the formula, d is the aperture mm,b, the pitch of holes is mm;
calculating to obtain: the perforation rate of the micro-perforated aluminum plate is 14.7 percent;
then according to
In the formula (f)0-resonance frequency, P-penetration ratio, c-sound velocity, L-air layer thickness, t-plate thickness, -orifice tip correction;
calculating to obtain: the resonance frequency of the micro-perforated aluminum plate is 924Hz, namely the sound absorption effect is best around the middle frequency of 1000 Hz.
Calculating the resonance frequency of the glass fiber board:
resonance frequency:
in the formula, ρ0Air density, c speed of sound, M0-mass per unit area of sheet, L-thickness of air layer behind sheet, K-stiffness factor of structure, K being about (1-3) × 106kg/(m2c2)；
Calculating to obtain: the glass fiber board has the resonant frequency of 114Hz., namely the sound absorption effect is best around the low-frequency of 114Hz.
Comprehensively calculating the sound absorption coefficient:
the sound absorption coefficient of the composite member was calculated using Zorba software, see table below.
The specific implementation method of the invention is as follows:
a glass fiber plate 13 is arranged in a limiting frame on one side of the micro-perforated aluminum plate 12;
the side, provided with the glass fiber plate 13, of the micro-perforated aluminum plate 12 is opposite to the wall body 11, the micro-perforated aluminum plate 12 is fixed to the main structure, the micro-perforated aluminum plate 12 can be arranged on the main structure in a keel or frame mode, a set gap is formed between the glass fiber plate 13 and the wall body 11 during installation, and therefore a cavity 14 is formed between the glass fiber plate 13 and the wall body 11;
through the fixed glass fiber board in one side at micro-perforated aluminum plate, realize sound absorption coefficient's maximize, and possess fabulous fire prevention, moisture resistance, and micro-perforated aluminum plate has the function of easily scrubbing, glass fiber board does not wet, but wide application in natatorium, the washing workshop of high noise, the high moist equipment computer lab of high noise etc. require high place to the sound absorbing material, and through the optimal design to micro-perforated aluminum plate's density and perforation rate, realize the thickness minimizing of whole sound absorption component, but wide application in musical instrument room, the theater, music hall etc. need the light, sound absorption and the scene of the triple function of preventing fires.
The invention also provides a construction method of the sound absorption structure, which comprises the following steps:
providing a micro-perforated aluminum plate 12 and a glass fiber plate 13, and mounting the glass fiber plate 13 on one side of the micro-perforated aluminum plate 12;
the side of the micro-perforated aluminum plate 12, on which the glass fiber plate 13 is mounted, faces the wall 11, and the micro-perforated aluminum plate 12 is fixed to the main structure, and a set distance is left between the glass fiber plate 13 and the wall 11 to form a cavity 14.
Further, the perforation ratio of the micro-perforated aluminum plate was 14.7%.
Specifically, a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate 12 close to the wall body 11;
the glass fiber plate 13 is correspondingly installed in the position limiting frame, thereby being fixed on one side of the micro-perforated aluminum plate 12.
Preferably, the glass fiber plate has a thickness of 10-20 mm and a density of 100k g/m3。
The operation mode of the practical implementation of the construction method provided by the invention is as follows:
a glass fiber plate 13 is arranged in a limiting frame on one side of the micro-perforated aluminum plate 12;
the side, provided with the glass fiber plate 13, of the micro-perforated aluminum plate 12 is opposite to the wall body 11, the micro-perforated aluminum plate 12 is fixed to the main structure, the micro-perforated aluminum plate 12 can be arranged on the main structure in a keel or frame mode, a set gap is formed between the glass fiber plate 13 and the wall body 11 during installation, and therefore a cavity 14 is formed between the glass fiber plate 13 and the wall body 11.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A sound absorbing structure, wherein the sound absorbing structure is spaced apart along a wall of a body structure, the sound absorbing structure comprising:
the micro-perforated aluminum plate is fixed on the main body structure and is parallel to the wall body, and a set distance is reserved between the micro-perforated aluminum plate and the wall body; and
and the glass fiber board is fixed on one side, close to the wall body, of the micro-perforated aluminum plate, and a cavity is formed between the glass fiber board and the wall body.
2. A sound-absorbing structure according to claim 1, wherein the thickness of the cavity is from 30mm to 40 mm.
3. The sound absorbing structure of claim 1 wherein the microperforated aluminum sheet has a thickness of 0.45mm to 0.9mm, a hole diameter of 0.55mm to 1.00mm, and a pitch of 3mm to 7 mm.
4. A sound-absorbing structure according to claim 3, wherein the micro-perforated aluminium sheet has a perforation rate of 14.7%.
5. The sound absorption structure as claimed in claim 1, wherein a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate close to the wall body, and the glass fiber plate is correspondingly installed in the limiting frames.
6. The sound absorption of claim 1The structure is characterized in that the glass fiber plate has the thickness of 10-20 mm and the density of 100k g/m3。
7. A method of constructing a sound absorbing structure as claimed in claim 1, comprising the steps of:
providing the micro-perforated aluminum plate and the glass fiber plate, and mounting the glass fiber plate on one side of the micro-perforated aluminum plate;
will micro-perforated aluminum plate installs one side orientation of glass fiber board the wall body, and will micro-perforated aluminum plate is fixed in major structure, just glass fiber board with leave the interval of settlement in order to form the cavity between the wall body.
8. The method of constructing a sound absorbing structure according to claim 7, wherein the micro perforated aluminum sheet has a perforation rate of 14.7%.
9. The method for constructing a sound absorbing structure according to claim 7, wherein a plurality of limiting frames are fixed on one side of the micro-perforated aluminum plate close to the wall body;
and correspondingly installing the glass fiber plate in the limiting frame so as to be fixed on one side of the micro-perforated aluminum plate.
10. The method of constructing a sound absorbing structure as claimed in claim 7, wherein the glass fiber plate has a thickness of 10mm to 20mm and a density of 100k g/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712982.2A CN112012364A (en) | 2020-07-22 | 2020-07-22 | Sound absorption structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712982.2A CN112012364A (en) | 2020-07-22 | 2020-07-22 | Sound absorption structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN112012364A true CN112012364A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010712982.2A Pending CN112012364A (en) | 2020-07-22 | 2020-07-22 | Sound absorption structure and construction method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1921219A1 (en) * | 2006-11-08 | 2008-05-14 | Juan Lloveras Calvo | Sound damping and fire restistant insulating panel and its manufacturing procedure |
| CN202689418U (en) * | 2012-07-20 | 2013-01-23 | 金邦虎 | Alumium composite acoustical board |
| CN206053206U (en) * | 2016-08-22 | 2017-03-29 | 朱皓宇 | A kind of composite plate for strengthening sound-absorbing effect |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
| CN110005086A (en) * | 2019-03-29 | 2019-07-12 | 广州市五羊艺冠声学材料有限公司 | A kind of ultramicropore abatvoix |
-
2020
- 2020-07-22 CN CN202010712982.2A patent/CN112012364A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1921219A1 (en) * | 2006-11-08 | 2008-05-14 | Juan Lloveras Calvo | Sound damping and fire restistant insulating panel and its manufacturing procedure |
| CN202689418U (en) * | 2012-07-20 | 2013-01-23 | 金邦虎 | Alumium composite acoustical board |
| CN206053206U (en) * | 2016-08-22 | 2017-03-29 | 朱皓宇 | A kind of composite plate for strengthening sound-absorbing effect |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
| CN110005086A (en) * | 2019-03-29 | 2019-07-12 | 广州市五羊艺冠声学材料有限公司 | A kind of ultramicropore abatvoix |
Non-Patent Citations (3)
| Title |
|---|
| 吴曙球: "《建筑物理》", 31 July 1997, 天津科学技术出版社 * |
| 张恩惠，殷金英，邢书仁: "《普通高等教育十二五规划教材 噪声与振动控制》", 30 April 2012, 冶金工业出版社 * |
| 方丹群，董金英: "《噪声控制114例》", 30 September 1985, 劳动人事出版社 * |
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Application publication date: 20201201 |