CN103061424B - A kind of sound insulation vibration absorber - Google Patents
A kind of sound insulation vibration absorber Download PDFInfo
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- CN103061424B CN103061424B CN201210002451.XA CN201210002451A CN103061424B CN 103061424 B CN103061424 B CN 103061424B CN 201210002451 A CN201210002451 A CN 201210002451A CN 103061424 B CN103061424 B CN 103061424B
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- sound insulation
- sound
- vibration
- supporting construction
- damping layer
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Abstract
The invention discloses a kind of sound insulation vibration absorber, specifically include, supporting construction, first sound insulation unit and the second sound insulation unit composition, the upside that described supporting construction bottom surface is fixed in described first sound insulation unit laminating is placed in described supporting construction interior volume, described second sound insulation unit laminating is fixed on the downside of described supporting mechanism bottom surface and is placed in described supporting construction outside, solve the noise abatement problem of noise " secondary pollution ", can be with the propagation of effective damping sound wave, stop the straight line conduction of sound wave, the sound wave vibration damping layer that insulated against sound is made to absorb, effectively reduce interior of building sound to the propagation outside building, and building external noise is to the propagation of interior of building, thus reach the effect of sound insulation.
Description
Technical field
The present invention relates to buildings in general structure, the transmission of sound, conduct or typically filling of orient
Put；Protect or reduce noise or the general device of other infrasonic waves, sound wave or ultrasound wave, special
Do not relate to a kind of indoor sound insulating vibration absorber.
Background technology
In current most of noise abatement engineering use combination sound insulation acoustic board, be typically all every
The version of the additional sound-absorbing material of sound backboard additional mask perforated plate, its sound insulation property is main
Depending on the insulate against sound thickness of backboard, surface density, sound absorbing capabilities then depends on the suction of sound-absorbing material
Sound characteristics.In the case of sheet material of the same race, the thickness of backboard is the least, and sound insulation property weakens, and holds
Being easily generated vibration, if increasing the thickness of plate, then can strengthen the weight of whole sound insulationg board, give construction
Installation is made troubles, and also can increase construction costs.The acoustically effective of sound insulation acoustic board also depends on
In the selection of sound-absorbing material, and after material determines, the sound absorption characteristics of sound-absorbing material are exactly
Changeless, it is relatively small that this results in common sound insulation acoustic board sound absorption frequency range.Mask
Perforated plate mostly is conventional perforated plate, generally aperture 3mm, punching rate 20-30%.By
It is relatively large in aperture, if plate in the open or easily makes sound absorption material in plate time special environment uses
Material watered and wetting, thus it is substantially reduced the sound absorbing capabilities of entirety.It addition, prior art is implemented
During, sound insulating material originally, in the case of vibrated, also can produce vibration, thus make
Become " the secondary noise " caused by sound insulating material vibration.
In realizing process of the present invention, inventor finds at least to exist in prior art to ask as follows
Topic:
Mostly existing noise-reduction method is to use the mode of " sound insulation " to realize, and needs at noise source
Sound arrester is set, so that noise source is isolated with free surrounding space.But implemented in reality
Cheng Zhong, during being especially used in indoor Noise Treatment, owing to noise vibration can cause " building
Structure-borne sound transmission " and " vibration that sound arrester itself brings is transaudient ", it can be seen that, due to sound insulation
Device itself is affected " secondary pollution " creating noise by " noise vibration ", thus reduces
The effect of sound insulation and noise reducing, needs further it is emphasized that due to " sound arrester " that use
Producing " secondary pollution ", therefore, noise abatement effect is the most inconspicuous, and especially low frequency is made an uproar
The poor effect of the improvement of sound.
Summary of the invention
The problem technically existing for house sound insulation in prior art and limitation, the present invention's
Purpose is to provide a kind of sound insulation vibration absorber, by the damping of sound insulating material is solved " two
Secondary pollution " noise abatement problem.
For solving above-mentioned technical problem, the present invention takes techniques below scheme: supporting construction,
First sound insulation unit and the second sound insulation unit composition.Described supporting construction is for can surround space also
There is the tubular construction of bottom surface；Described first sound insulation unit includes: the first damping layer and first
Vibration insulation, described first vibration insulation is bonded in below described first damping layer, described first damping
Layer includes: gripper shoe and damping body, described damping body is by the material system that plastic deformation can occur
Becoming, described gripper shoe is fixing to be bonded in above described damping body；Described second sound insulation unit bag
Include: the second damping layer and the second vibration insulation, described second damping layer be bonded in described second every
Shaking above layer, described second damping layer is consistent with described first damping layer structure；Described first
Sound insulation unit laminating is fixed on the upside of described supporting construction bottom surface and is placed in described supporting construction
Interior volume, juxtaposition on the downside of described supporting construction bottom surface is fixed in described second sound insulation unit laminating
In described supporting construction outside.
Meanwhile, the present invention also provides for the mode of a kind of vibration damping that insulates against sound, and specifically includes: by noise
Source is arranged at described sound insulation vibration absorber supporting construction inside or is arranged at described sound insulation vibration damping dress
Put top, supporting construction bottom surface.
Compared with prior art, the embodiment of the present invention has the advantage that
For noise source and sound-conducting apparatus, administer respectively, by arranging vibration insulation from minimizing
Vibration produces and two aspects of damping layer minimizing conduct vibrations, produces due to structure targetedly
Raw noise and " secondary pollution " noise making partiting sound member produce due to sound wave are administered,
Isolation multiple noise produced by conduct vibrations can be had by this device, and can be with pin
Concrete condition to noise source, outside noise source, (peripheral) implements this device, as former
Building interior implement, do not affect building original structure, can effectively stop sound wave propagation,
Reduce the conductive strength of sound wave, make the sound wave vibration damping layer that insulated against sound absorb, effectively reduce building
Thing internal sound is to the propagation outside building, and building external noise is in building
The propagation in portion, thus reach the effect of sound insulation.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings embodiments of the present invention are elaborated:
Fig. 1 shows that a kind of vibration absorber that insulates against sound is installed on the first structural representation building thing ground
Figure；
Fig. 2 is the cross section structure schematic diagram in A-A face in Fig. 1；
Fig. 3 shows that a kind of vibration absorber that insulates against sound is installed on the first structural representation building thing top
Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe:
In embodiments of the invention one, in being arranged within house with a kind of vibration absorber that insulates against sound
As a example by portion, as depicted in figs. 1 and 2, specifically include: supporting construction 18,19, specifically
During enforcement, supporting construction 19 can use 40 × 60 × 1.5 firm materials of side, and in Fig. 1, A-A is for propping up
The transverse section tenon structure cross-sectional view of support steel props up to increase in its tenon structure simultaneously
Support force degree, also can add bracing members material, the first sound insulation unit and the second sound insulation unit composition,
Described supporting construction 18,19 is can to surround space and have the tubular construction of bottom surface, described
First sound insulation unit includes: the first damping layer and the first vibration insulation 13, its vibration insulation 13 is at tool
Body can use 40mm vibration isolation plate, described first vibration insulation 13 to be bonded in described first when implementing
Below damping layer, described first damping layer includes: gripper shoe 11 and damping body 12, described resistance
Buddhist nun's body 12 is made up of the material that plastic deformation can occur, and described gripper shoe 11 is fixing is bonded in institute
State above damping body 12, can use when damping layer is embodied as 1.4mm damping sheet and
1.5mm cold-rolled steel sheet；It is as the supporting construction 18 on the first sound insulation unit, specifically
40 × 40 × 1.5 side's firm materials can be used during enforcement, for optimizing vibration insulation structure, supporting construction 18,
May be used without 40 × 40 × 1.5 sides in the specific implementation and just add cotton material, on the supporting structure 18
In order to increase ground supports intensity, one layer can also be increased as required there is some strength
Ground supports material, its thickness can use 9mm thickness lumber core, it arranges the second sound insulation
Unit, described second sound insulation unit includes: the second damping layer and the second vibration insulation 17, it is the years old
Two vibration insulations 17 can use 10mm vibration isolation plate, described second damping layer in the specific implementation
It is bonded in above described second vibration insulation 17, described second damping layer and described first damping layer
Structure is consistent, and specifically includes: gripper shoe 15 and damping body 16, described damping body 16 by
The material that plastic deformation can occur is made, and described gripper shoe 15 is fixing is bonded in described damping body
Above in the of 16, can use when the second damping layer is embodied as 1.4mm damping sheet and
1.5mm cold-rolled steel sheet；Described first sound insulation unit laminating is fixed at the bottom of described supporting construction
It is internal that the upside in face 110 is placed in described supporting construction space 111, described second sound insulation unit
Laminating is fixed on the downside of described supporting construction bottom surface 112 and is placed in outside described supporting construction space
Portion, is also adhesively fixed the described second sound insulation unit of installation on the downside of described supporting construction end face.
Wherein, described supporting construction 18,19 for can surround that close space and have bottom surface or
The tubular construction of end face.Described supporting construction 18,19 specifically includes: bracing frame and supporter,
Above support is installed on bracing frame side, and may make up side and crowd around structure, support frame as described above
Internal filling sound absorption cotton, thus increase soundproof effect.Single with the first sound insulation in described supporting construction
Fixing at least one of which core-board 14 is clamped or in described supporting construction and the second sound insulation between unit
Fixing at least one of which core-board 14 is clamped between unit.
Described first sound insulation unit specifically may include that at least two the first damping layer and first every
Shake layer, and between described at least two the first damping layer, laminating is fixing connects, described at least two
First damping layer is fitted and connected above described first vibration insulation；Or described second sound insulation unit
Specifically may include that at least two the second damping layer and the second vibration insulation, described at least two
Between two damping layers, laminating is fixing connects, and described at least two the second damping layer is fitted and connected in institute
Stating below the second vibration insulation, described vibration insulation 17,13 at least includes at least one of which vibration isolation plate.
By installing the above vibration absorber that insulates against sound, when for another kind of laboratory indoor sound insulating,
During component gross thickness (including damping body thickness) 250mm, when installing according to job specfication,
Detecting instrument: RTA840 system, examined project weighted transmission loss RW=42 decibel, depend on
According to GB/T8485-2002 " external window of building air-borne sound sound insulation property classification and detection method ", sentence
The sound insulation class of this component fixed is 5 grades (40dB≤RW45dB).This device is for completely closing
During state, examined project weighted transmission loss RW=52 decibel, according to GB/T8485-2002
" external window of building air-borne sound sound insulation property classification and detection method ", it is determined that the sound insulation etc. of this component
Level is 6 grades (45dB≤RW), and particular content refer to sound proof window GS/XF/41 detection report
Accuse, report number: A07-09-17.
By installing the above vibration absorber that insulates against sound, when sound insulation in building, foundation
GB/T50121-2005 " Standard for assessment of building sound insulation ", uses frequency spectrum correction C (frequency spectrum
1), time, weighted transmission loss is DNT, w+ C=69 (-2 ,-9) decibel, sound insulation property classification
It is 9；Use frequency spectrum correction CtrTime (frequency spectrum 2), weighted transmission loss is DNT, w+Ctr=
57 decibels, sound insulation property is classified as 9, report number: A09-03-22.
By installing above insulate against sound vibration absorber, when insulating against sound, component for Laboratory air sound
During gross thickness (including damping body thickness and forms thickness) 60mm, forms size and peace
Dress method is: 2m × 1.6m 3.2m altogether2When installing according to job specfication, detecting instrument:
RTA840 system, this device examined project weighted transmission loss RW=49 decibel, foundation
GB/T8485-2002 " external window of building air-borne sound sound insulation property classification and detection method ", it is determined that
The sound insulation class of this component is that 6 grades of (45dB≤RW) particular contents refer to sound proof window
GS/XF/49 examining report, report number: A07-09-16.
By installing the above vibration absorber that insulates against sound, when sound insulation in building, foundation
GB/T50121-2005 " Standard for assessment of building sound insulation ", uses frequency spectrum correction C (frequency spectrum 1)
Time, weighted transmission loss is DnT, w+C=69 (-2 ,-9) decibel, sound insulation property classification
It is 9；When using frequency spectrum correction Ctr (frequency spectrum 2), weighted transmission loss is DNT, w+Ctr
=57 decibels, sound insulation property is classified as 9, report number: A09-03-22.
In embodiments of the invention two, as it is shown on figure 3, be installed on one sound insulation vibration absorber
As a example by the position at top, house, specifically include: supporting construction and damping layer, described damping layer
Including: gripper shoe 25 and damping body 24, described damping body 24 is by plastic deformation can occur
Material make, described gripper shoe 25 is fixing to be bonded in above described damping body 24, and leads to
Cross expansion bolt 22 and angle steel 23 (can use 40 × 40 × 2 angle steel when being embodied as) will prop up
Hold structure 26 to be fixed on building masonry wall 21.
During its embodiment of above realizes at the scene, specific implementation process such as: need now
One internal " antrum tympanicum " producing vibration carried out sound insulation and to subtract battle array, owing to " antrum tympanicum " is in resident
In building, therefore, when " antrum tympanicum " is internal play time, due to its internal vibrations produced and strike
The sound that sent of drum can cause the noise of at least two mode institute output, a kind of noise be due to
The air-borne sound that the sound itself sent is caused, another kind of noise is owing to " that beats a drum shakes
Dynamic " the generation produced vibration of dynamic constructure inner structure (such as: body of wall, window and ground)
Thus the noise brought due to structure-borne sound transmission, the present invention is directed to above two kind noise special
Give the design in structure, first, the ground of " antrum tympanicum " is laid vibration insulation, and in institute
State vibration insulation upper berth and set damping layer, its damping layer also can be laid one layer or at least one of which supports
Plate, the main material of the gripper shoe laid can be have the metallic plate of support function or its
The steel plate of his material or iron plate, its metallic plate need not larger thickness, can play support its steel knot
Structure, is equivalent to " the first sound insulation unit " mentioned in the present invention, the first sound insulation unit paving
It is located at the whole ground of its " antrum tympanicum ", and on the first sound insulation unit and the inner space of " antrum tympanicum "
The structure of middle structure " room in room ", its " room in room " structure is by " supporting mentioned by the present invention
Structure " carry out the structure of four sides body of wall as support keel, simultaneously constructed good " in room
Room " on structural floor (in room on room steel construction bottom) lay " the second sound insulation unit ",
The ground in " room in room " can be built by the sheet material such as gripper shoe and lumber core on second sound insulation unit
Face structure, and what player carried out playing on " room in room " earth construction it described,
In order to obtain preferably, sound insulation effectiveness in vibration suppression can be at former " antrum tympanicum " and the top or four in " room in room "
Wall installs " the first sound insulation unit " or " the second sound insulation unit " additional, and above structure is owing to have employed pin
Vibration damping sound insulating structure to " air-borne sound " and " structure-borne sound transmission ", therefore, obtains after enforcement
Well defening effect.Architectural environment inspection center of Tsing-Hua University has carried out it to said structure
Mesh entitled " air-borne sound sound insulation in-site measurement between two Room in building " (detection foundation:
GB/T50121-2005 " Standard for assessment of building sound insulation " and GB/T 19889.4-2005/ISO
140-4:1998 " acoustics building and building element sound insulation measurement the 4th part: between room
The in-site measurement of air-borne sound sound insulation ") its testing result show, when " two-door closedown ", it " is counted
Power standard sound pressure extreme difference " (oise insulation factor) be 69 (-2 ,-9) decibel, higher than 9 grades of country
Sound insulation standard, its " weighted standard sound when its defening effect is higher than " the two-door closedown " of national requirements
Pressure extreme difference " (oise insulation factor) be 5 grades of sound insulation standards of 40～35 decibels；Detect simultaneously
When " external door close inside door open or inside door close external door open " time its " weighted standard sound pressure extreme difference " (every
Volume) it is respectively 50 (0 ,-2), 51 (-2 ,-7) decibel, be equivalent to 8 grades, 7 grades of country
Sound insulation standard, its defening effect opens higher than the external door pass inside door of national requirements or inside door pass external door is opened
Time its " weighted standard sound pressure extreme difference " (oise insulation factor) be 4 grades of 40～35 decibels every
Tone mark is accurate, from above examining report understand implementation process of the present invention acquired obvious every
Sound effective value.
By above indoor sound insulating vibration absorber, can effectively reduce the sound given birth to by indoor vibration movable property
Sound, because need not original building structure is transformed, it is possible to carry out installing and implement,
Therefore use flexibly, easy for installation, can set flexibly for different installation requirements simultaneously
Meter draw bail and damping structure, thus better meet installation requirement, reach preferably to insulate against sound
Effectiveness in vibration suppression.
The several specific embodiments being only the present invention disclosed above, but, the present invention not office
Being limited to this, the changes that any person skilled in the art can think of all should fall into the guarantor of the present invention
Protect scope.
Claims (5)
1. one kind sound insulation vibration absorber, it is characterised in that including: supporting construction, first sound insulation unit and
Second sound insulation unit composition, described first sound insulation unit includes: the first damping layer and the first vibration insulation, institute
Stating the first vibration insulation and be bonded in below described first damping layer, described first damping layer includes: gripper shoe and
Damping body, described damping body is made up of the material that plastic deformation can occur, and described gripper shoe is fixing to be bonded in
Above described damping body；Described second sound insulation unit includes: the second damping layer and the second vibration insulation, described
Second damping layer is bonded in above described second vibration insulation, described second damping layer and described first damping layer
Structure is consistent；The upside that described supporting construction bottom surface is fixed in described first sound insulation unit laminating is placed in institute
Stating supporting construction interior volume, described second sound insulation unit laminating is fixed on the downside of described supporting construction bottom surface
It is placed in described supporting construction outside；
Described supporting construction is to surround tubular construction that is that close space and that have bottom surface or end face；
Described supporting construction specifically includes: bracing frame and supporter, and above support is installed on bracing frame side
Face, and constitute side and crowd around structure；
Installation described second sound insulation unit is adhesively fixed on the downside of described supporting construction end face；
Fixing at least one of which core-board is clamped or in institute between described supporting construction and the first sound insulation unit
State and clamp fixing at least one of which core-board between supporting construction and the second sound insulation unit.
2. a kind of sound insulation vibration absorber, it is characterised in that support frame as described above
Internal filling sound absorption cotton.
3. as described in claim 1 a kind of sound insulation vibration absorber, it is characterised in that described first every
Sound unit specifically includes: at least two the first damping layer and the first vibration insulation, and described at least two first hinders
Between Buddhist nun's layer, laminating is fixing connects, and described at least two the first damping layer is fitted and connected in described first vibration isolation
Above Ceng；Or described second sound insulation unit specifically include: at least two the second damping layer and the second vibration insulation,
Between described at least two the second damping layer, laminating is fixing connects, and described at least two the second damping layer is fitted
It is connected to below described second vibration insulation.
4. a kind of sound insulation vibration absorber, it is characterised in that described vibration insulation
Including at least one of which vibration isolation plate.
5. a sound insulation oscillation damping method, it is characterised in that noise source is arranged in claim 1-4 and appoints
A described sound insulation vibration absorber supporting construction of anticipating is internal or is arranged at any one institute in claim 1-4
State sound insulation top, vibration absorber supporting construction bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002451.XA CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103229663 | 2011-10-21 | ||
| CN201110322966.3 | 2011-10-21 | ||
| CN201110322966 | 2011-10-21 | ||
| CN201210002451.XA CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061424A CN103061424A (en) | 2013-04-24 |
| CN103061424B true CN103061424B (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210002451.XA Expired - Fee Related CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
Country Status (1)
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| CN (1) | CN103061424B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811913A (en) * | 2019-03-22 | 2019-05-28 | 贾猛虎 | A kind of vibration damping sound insulating structure and its mounting process |
| CN110656755A (en) * | 2019-10-30 | 2020-01-07 | 安徽绿谷新材料有限公司 | Floor slab sound insulation and shock absorption structure based on rubber pads and construction method thereof |
| CN113404174A (en) * | 2021-07-06 | 2021-09-17 | 江苏世科环境发展有限公司 | Sound insulation vibration attenuation panel and flexible connection spare |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4027068B2 (en) * | 2001-10-11 | 2007-12-26 | 昭和電線デバイステクノロジー株式会社 | Sound absorbing material |
| CN101691119B (en) * | 2009-09-18 | 2011-11-30 | 广州市延昌新型塑胶制品有限公司 | High speed train damping sound insulation sheet material and manufacturing method thereof |
| CN102179978B (en) * | 2011-02-15 | 2013-10-02 | 中国船舶重工集团公司第七二五研究所 | Sandwich damping composite material |
| CN202788532U (en) * | 2011-10-21 | 2013-03-13 | 贾猛虎 | Sound insulation and vibration damping device |
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| CN103061424A (en) | 2013-04-24 |
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