CN201665927U - Low frequency damping and sound insulation structure - Google Patents
Low frequency damping and sound insulation structure Download PDFInfo
- Publication number
- CN201665927U CN201665927U CN2009201374213U CN200920137421U CN201665927U CN 201665927 U CN201665927 U CN 201665927U CN 2009201374213 U CN2009201374213 U CN 2009201374213U CN 200920137421 U CN200920137421 U CN 200920137421U CN 201665927 U CN201665927 U CN 201665927U
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- Prior art keywords
- low frequency
- insulating structure
- sound insulating
- frequency damping
- damping sound
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- 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.)
- Expired - Fee Related
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- 238000013016 damping Methods 0.000 title claims abstract description 41
- 238000009413 insulation Methods 0.000 title abstract description 11
- 239000010451 perlite Substances 0.000 claims abstract description 10
- 235000019362 perlite Nutrition 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000011491 glass wool Substances 0.000 claims abstract description 8
- 239000010440 gypsum Substances 0.000 claims description 15
- 229910052602 gypsum Inorganic materials 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 239000011505 plaster Substances 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000009408 flooring Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model discloses a practical low frequency damping and sound insulation structure which uses a C-type lightgage steel joist as a main structure. Two layers of plaster tablets (12mm and 9mm) with different thicknesses are designed; a 2mm sound insulation felt with excellent sound insulation performance is adopted between the layers of plaster tablets; centrifugal glass wool plates with a thickness more than 50mm and a density more than 120kg/m3 are filled in the middle of an empty cavity; and an expanded perlite acoustic barrier is coated on the outer layer of plaster tablets. The low frequency damping and sound insulation structure can effectively absorb and obstruct the penetration and spreading of low frequency noises.
Description
Technical field
The utility model relates to a kind of low-frequency noise control method, and particularly relating to a kind of low-frequency noise that can effectively intercept influences, and prevents to produce the noise control method that solid is propagated, and meets the low frequency damping sound insulating structure of acoustics standard.
Background technology
The development of show business is the result of Social Culture career development and important ingredient, and its objective reality both can not have been ignored also and can not repel.But, be that the public place of entertainment often is in the resident and lives in concentrated communities the place, the noise of public place of entertainment disturbs residents becomes the important source of city noise pollution, particularly the low frequency of sound system is made an uproar vibration with sound wave to flooring or body of wall transmission, thereby excite the vibration of corresponding flooring or body of wall, and simultaneously vibration is reached whole building structure to external radiation sound.Influence greatly resident's life and rest, controversial many disputes and contradiction.Along with the development of society, to the intensification of the understanding of the harmfulness of noise, people are more and more stronger for the requirement that reduces influence of noise.
" standard for acoustic environmental quality " GB3096-2008 that implement the 1 day October in 2008 of announcing in national environmental protection portion on August 19th, 2008, (the requirement of LAeq value≤45dB) of IV class indoor standard limited value at night among " social living environment's noise emission standard " GB22337-2008.Noise emission does not singly require the total A sound level standard of noise, and the sound pressure level of the low-frequency noise octave band 31.5Hz of indoor acoustic environment, 63Hz, 125Hz, 250Hz, 500Hz is all had specific requirement.Provide legal basis to life and the rest that guarantees the resident, also the noise control of show business has been had higher requirement.
The utility model content
The purpose of this utility model is to provide " standard for acoustic environmental quality " GB3096-2008 of a kind of meeting, and " social living environment's noise emission standard " GB22337-2008 can effectively intercept the public place of entertainment noise control method that low-frequency noise influences.
For achieving the above object, technical solution of the present utility model is:
The low frequency damping sound insulating structure be a kind of be main structure by C type lightgage steel joist, be designed to the gypsum plank (12mm, 9mm) of double-deck different-thickness, adopt the good 2mm sound-insulating felt of sound insulation property in the middle of the two-layer gypsum plank, filling thickness is 50mm in the middle of the cavity, and density is 120kg/m
3Above centrifugally glass-wool plate sprays the expanded perlite absorbent treatment on the outer gypsum plank.Can absorb, intercept penetrating and propagating of low-frequency noise effectively.
Original building structure wall, floor, beam column that the public place of entertainment is exposed in the strong sound source increase the processing of low frequency damping sound insulating structure; Use the elasticity suspension rod to be connected with the original building structure, between apart from more than the 200mm, and connect with the C type lightgage steel joist of low frequency damping sound insulating structure, the vibrations that noise produced are absorbed by spring, prevent to form the overhead speaker of solid propagation.
Use between the body of wall at interval, public place of entertainment and the original structure and stay seam and fill damping material, bottom and ground link the use vibration isolator, prevent to form the overhead speaker that solid is propagated.The design flexibility power of elasticity suspension rod should be complementary with all loads.Prevent self vibration to flooring or body of wall transmission.
Filling thickness is 50mm in the middle of the cavity of low frequency damping sound insulating structure, and density is 120kg/m
3Above centrifugally glass-wool plate has the characteristic of good absorption low-frequency noise.Sound-insulating felt system is to fill superfine iron powder in the main material by top-quality rubber, can make acoustic energy be converted into heat energy effectively and loses.With the sound absorption coefficient α 0=0.8 of expanded perlite, has good absorption of noise characteristic as damping layer as absorbent treatment.
Adopt gypsum plank in this design, mainly because of the resonance frequency of gypsum plank at 3120Hz, avoid in low-frequency range, producing resonance, adopt the gypsum plank of different-thickness, can effectively avoid adopting the resonance frequency of same thickness gypsum plank identical, thus the appearance of sound insulation low ebb in a certain frequency range.Adopt sound insulation materials in the two-layer gypsum plank, this material has good defening effect for medium and low frequency on the one hand, and the distinctive damping of this material effectively suppresses the vibration of gypsum plank simultaneously, avoids the generation of coincidence effect.This material has different acoustic characteristic impedances with gypsum plank simultaneously, and sound all has bigger energy consumption by each interface the time.
Carry out spraying of expanded perlite with the mortar pulp shooting machine at the construction field (site), help reducing cost, increase work efficiency and satisfying the uniformity of expanded perlite absorbent treatment.Should follow principle a small amount of, multipass, reach spray thickness after, can use plaster trowel to carry out smooth reparation, smooth with the uniformity that reaches absorbent treatment and outward appearance.The stirring of expanded perlite in powder should not have too much adhesive, to prevent to reduce the flow resistance of absorbent treatment.
Described low frequency damping sound insulating structure system is provided with according to the concrete interval of public place of entertainment.Its height, length and moulding system are according to sound source and be subjected to the distance and the acoustic attenuation requirement of point.
After adopting such scheme, the utlity model has following advantage:
1, have complete function of use: the utility model low frequency damping sound insulating structure meets " standard for acoustic environmental quality " GB3096-2008, the requirement of " social living environment's noise emission standard " GB22337-2008.
2, have good acoustics: the sound absorption and insulation performance of the utility model low frequency damping sound insulating structure is comparatively stable, helps bringing into play to greatest extent the advantage of sound appliances, audio amplifier, makes the singer in the K song box can give play to highest level.
3, have good social benefit: the utility model low frequency damping sound insulating structure can solve the public place of entertainment noise problem that disturbs residents effectively, builds the social harmony atmosphere, has good social benefit and operator's economic benefit.
4, the sound-insulating felt of described low frequency damping material that sound insulating structure uses in being wrapped in the centrifugally glass-wool plate meets fire protection requirement as being A level incombustible material the B1 level fire proofing.Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the sectional view of the utility model low frequency damping sound insulating structure;
Fig. 2 is the partial view of the utility model low frequency damping sound insulating structure;
Fig. 3 is the partial view of the utility model low frequency damping sound insulating structure;
Fig. 4 is the partial view of the utility model low frequency damping sound insulating structure;
1C type lightgage steel joist, 2 cavitys, 39mm gypsum plank, 4,2mm sound-insulating felt, 5 centrifugally glass-wool plates, 612mm gypsum plank, 7, expanded perlite, 8 elasticity suspension rods, 9 sound insulation materialss, 10 vibration isolators among the figure.
The specific embodiment
As shown in Figure 1, the utility model low frequency damping sound insulating structure main body be a kind of be main frame mode by C type lightgage steel joist, it comprises: 1C type lightgage steel joist, 2 cavitys, 39mm gypsum plank, 4,2mm sound-insulating felt, 5 centrifugally glass-wool plates, 612mm gypsum plank, 7, expanded perlite.
As shown in Figure 2, the method for attachment of the utility model low frequency damping sound insulating structure and original building structure floor, beam, it comprises: 8 elasticity suspension rods.
As shown in Figure 3, the method for attachment of the utility model resistance low frequency Buddhist nun's sound insulating structure and body of wall at interval, it comprises: 9 sound insulation by filling materials.
As shown in Figure 4, the utility model low frequency damping sound insulating structure and original building structure wall, post method of attachment, it comprises: 10 vibration isolators.
In the present embodiment, the 2mm sound-insulating felt material of low frequency damping sound insulating structure of the present utility model need completely be spread, and note to handle as weak links such as finedraws, the seam of leakage sound and hole etc. can not occur, in order to avoid produce short circuit, the reduction sound insulation factor.The laying of centrifugally glass-wool plate also should not stayed the slit.
In the present embodiment, the laying of the expanded perlite absorbent treatment of the utility model low frequency damping sound insulating structure uses the mortar pulp shooting machine to spray.
In the present embodiment, the elasticity suspension rod of the utility model low frequency damping sound insulating structure is answered choose reasonable, places the damper or the vibration damping suspension hook of the respective model in " actively vibration damping " scope.
Emphasis of the present invention just is: the original structure body of wall, floor, the beam column that intactly the public place of entertainment are exposed in the strong sound source increase the processing of damping sound insulating structure.Prevent sound appliances, audio amplifier with acoustic vibration to flooring or wall, the body transmission, thus excite the vibration of corresponding flooring or body of wall, and simultaneously vibration is reached whole building structure to external radiation sound.
Claims (4)
1. a low frequency damping sound insulating structure is characterized in that: original structure body of wall, floor, beam column increase damping sound insulating structure that K song box is exposed in the strong sound source are handled; Use the elasticity suspension rod, the low frequency damping sound insulating structure directly is not connected with original structure, and connects with the C type lightgage steel joist of low frequency damping sound insulating structure.
2. low frequency damping sound insulating structure according to claim 1 is characterized in that: adopt C type lightgage steel joist, double-deck gypsum plank, sound-insulating felt, highdensity centrifugally glass-wool plate and spray the low frequency damping sound insulating structure of expanded perlite absorbent treatment.
3. low frequency damping sound insulating structure according to claim 2 is characterized in that: use the elasticity suspension rod to be connected with the C type lightgage steel joist of low frequency damping sound insulating structure.
4. low frequency damping sound insulating structure according to claim 2 is characterized in that: leave the space between the body of wall at K song box interval and the original building structure, fill damping material, vibration isolator is used in the binding on low frequency damping sound insulating structure bottom and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201374213U CN201665927U (en) | 2009-04-02 | 2009-04-02 | Low frequency damping and sound insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201374213U CN201665927U (en) | 2009-04-02 | 2009-04-02 | Low frequency damping and sound insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201665927U true CN201665927U (en) | 2010-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201374213U Expired - Fee Related CN201665927U (en) | 2009-04-02 | 2009-04-02 | Low frequency damping and sound insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201665927U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877564A (en) * | 2012-10-19 | 2013-01-16 | 宋刚 | Sandstone plastered structure environmental-friendly sound absorption wall |
| CN103590501A (en) * | 2013-10-25 | 2014-02-19 | 国家电网公司 | A lightweight combined panel structure for low-frequency sound insulation and its design method |
| CN103669767A (en) * | 2012-12-20 | 2014-03-26 | 厦门嘉达声学技术有限公司 | Decorative composite sound absorption structure |
| CN104895024A (en) * | 2015-06-12 | 2015-09-09 | 国家电网公司 | Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall |
| CN104963612A (en) * | 2015-07-23 | 2015-10-07 | 湖州巨力铝型材有限公司 | Sound insulation sliding door |
| CN104989247A (en) * | 2015-07-23 | 2015-10-21 | 湖州巨力铝型材有限公司 | Soundproof window |
| CN109811913A (en) * | 2019-03-22 | 2019-05-28 | 贾猛虎 | A vibration-damping and sound-insulating structure and its installation process |
-
2009
- 2009-04-02 CN CN2009201374213U patent/CN201665927U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877564A (en) * | 2012-10-19 | 2013-01-16 | 宋刚 | Sandstone plastered structure environmental-friendly sound absorption wall |
| CN102877564B (en) * | 2012-10-19 | 2014-09-03 | 宋刚 | Sandstone plastered structure environmental-friendly sound absorption wall |
| CN103669767A (en) * | 2012-12-20 | 2014-03-26 | 厦门嘉达声学技术有限公司 | Decorative composite sound absorption structure |
| CN103669767B (en) * | 2012-12-20 | 2015-11-04 | 厦门嘉达声学技术有限公司 | Decorative composite sound absorption structure |
| CN103590501A (en) * | 2013-10-25 | 2014-02-19 | 国家电网公司 | A lightweight combined panel structure for low-frequency sound insulation and its design method |
| CN103590501B (en) * | 2013-10-25 | 2015-09-30 | 国家电网公司 | Light combined plate structure for low-frequency sound insulation and design method thereof |
| CN104895024A (en) * | 2015-06-12 | 2015-09-09 | 国家电网公司 | Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall |
| CN104895024B (en) * | 2015-06-12 | 2016-11-16 | 国家电网公司 | Hydroenergy storage station modular guard sound lock device and sound-proof wall manufacture method |
| CN104963612A (en) * | 2015-07-23 | 2015-10-07 | 湖州巨力铝型材有限公司 | Sound insulation sliding door |
| CN104989247A (en) * | 2015-07-23 | 2015-10-21 | 湖州巨力铝型材有限公司 | Soundproof window |
| CN109811913A (en) * | 2019-03-22 | 2019-05-28 | 贾猛虎 | A vibration-damping and sound-insulating structure and its installation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20110402 |