CN203878934U - Floor sound-insulation structure - Google Patents
Floor sound-insulation structure Download PDFInfo
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- CN203878934U CN203878934U CN201420324446.5U CN201420324446U CN203878934U CN 203878934 U CN203878934 U CN 203878934U CN 201420324446 U CN201420324446 U CN 201420324446U CN 203878934 U CN203878934 U CN 203878934U
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- floor
- cell foam
- cement mortar
- foam concrete
- surface layer
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Abstract
The utility model discloses a floor sound-insulation structure which is composed of elastic closed-cell foam concrete, elastic vibration isolation strips, cement mortar and surface layer materials. The elastic closed-cell foam concrete is poured on the surface layer of a floor of a building structure in a cast-in-place mode. The surface layer materials are laid on the elastic closed-cell foam concrete through the cement mortar. The elastic vibration isolation strips are arranged on the cement mortar, the surface layer materials and vertical faces of the building structure. The thickness of the elastic closed-cell foam concrete ranges from 30 mm to 60 mm according to different requirements for vibration and noise reduction. The elastic closed-cell foam concrete is firmly combined with the surface layer of the floor of the building structure and the cement mortar, no empty drums can be generated, and the floor sound-insulation structure is easy and convenient to construct, low in construction cost and easy to popularize.
Description
Technical field
The utility model relates to a kind of noise control technique field, especially can meet a point floor sound insulating structure for family floor crashing sound insulation standard.
Background technology
In present stage market of real estate, offer in the commercial residential buildings that customer uses, a large amount of designs by the first standard of finishes, tier is wherein making cement mortar levelling layer on reinforced concrete structure layer, and the weighted standardization of floor is clashed into sound level and is substantially >=80dB(A).When resident family carries out secondary decoration, if the surface material of selecting is hard material (granite, floor ceramic tile etc.), do not reach the requirement of the impact sound sound insulation of regulation.And floor crashing is not up to standard, in architecture indoor, people's walking, race are jumped, are pulled the floor crashing of furniture generation and propagate by building structure, are that main biography is past downstairs, are wideband structural vibration noise.Be that vast civilian construction user is the most disgustful, also caused many neighbourhood contradiction.In the time of architectural design, just need to consider floor to take necessary sound insulation measure.
Code for sound insulation design of civil buildings GB 50118-2010 table 4.2.7 divide family floor crashing sound insulation standard (point family floor in bedroom, sitting room (Room))≤75(dB); Table 4.2.8 high request Separate Home floor crashing sound insulation standard (point family floor in bedroom, sitting room (Room))≤65(dB); Superfine requirement≤the 55(dB of table 7.2.4 guest room floor crashing sound insulation standard (floor between guest room and room, upper strata)).
Floating build floor is to improve the effective measures of floor crashing sound-insulation capability, its can meet≤55(dB) superfine requirement.Floating build floor is on original structure floor, to use cement mortar to carry out leveling layer, lays one deck elastic damping layer on leveling layer, and the interface between elastic damping layer uses adhesive tape sealing or repaves last layer plastic waterproof membrane.Place reinforced mesh, for cable and plumbing pipe through wall and floor, application elasticity sound absorption and insulation material parcel, build again the thick pea gravel concreten of 40～80mm, form microlith reinforced concrete floor with reinforced mesh, on microlith reinforced concrete floor, lay hard material floor covering by cement mortar.Because the operation of floating build floor is comparatively complicated, cost is higher, and the duration is all long.If the elasticity of elastic damping layer is better, the thickness of microlith reinforced concrete floor just requires thicker, otherwise hard material floor covering discontinuity equalization can produce fracture.Because existing sound isolation of floor pad is product of rubber and plastic, inflammable and use a period of time can produce sclerosis, hollowing phenomenon.Because can causing the interior space, the increase on thickness ground reduces the deficiency that built-loading increases simultaneously.
The solution of floor crashing is different from other Sound insulation for building members, and This floor arranges floor sound insulating structure, only can solve problem downstairs.Country promotes well-decorated house now, provides primary condition for solving floor crashing.Although floating build floor can meet have superfine require≤55(dB), for requiring to reach the great majority point family floor crashings standard≤75(dB that insulate against sound) a large amount of low-rent housing, housing built for the poor particularly, cost is too high, and is difficult to popularization.How to find a kind of cheap, short construction period, good endurance, can meet and divide the family floor crashing standard≤75(dB that insulates against sound) floor sound insulating structure, become vast acoustic engineering technician's research direction.
Summary of the invention
In order to overcome existing floating build floor complex procedures, cost deficiency higher, long in time limit, the utility model provides a kind of floor sound insulating structure, can meet a point family floor crashing sound insulation standard; Construct simple and convenient, cheap, be easy to promote.
The utility model solves the technical scheme that its technical problem adopts: a kind of floor sound insulating structure, formed by elasticity closed-cell foam concrete, elastic vibration isolation bar, cement mortar, surface material, described elasticity closed-cell foam concrete cast in situs is on building structure floor topping, on elasticity closed-cell foam concrete, use cement mortar paved surface layer material, at cement mortar, surface material and building structure facade, elastic vibration isolation bar is set.
Described elastic vibration isolation bar is arranged on cement mortar, floor topping material and building structure facade, is that vibration in order to prevent floor topping material enters building structure by building structure facade and causes vibration short circuit, affects defening effect.
The cement-based elastic closed-cell foam concrete that the described elasticity closed-cell foam coagulation soil series is formed by cement, water, blowing agent, Admixture, rubber powder, polypropylene fibre superbhort fiber.Rubber powder, at suspension and the distributing homogeneity of slip, both can increase the elasticity of floor sound insulating structure, improves its anti-vibration performance, simultaneously cheap.Rubber powder is coated in the foam concrete of closed pore, can improve the weatherability of rubber powder, improves application life.
Polypropylene fibre superbhort fiber can increase the concrete toughness of elasticity closed-cell foam, reduces fragility, improves the concrete deformation force of elasticity closed-cell foam and anti-impact force.Its cellular structure of closed-cell foam concrete makes it have certain modulus of elasticity, and vibratory impulse is had to good absorption and dispersion, adds rubber powder, polypropylene fibre superbhort fiber can further improve modulus of elasticity.
Described elasticity closed-cell foam concrete, its dry density >=500kg/m3, compressive strength >=1Mpa, meets the load requirement of floor topping material.
The described concrete thickness of elasticity closed-cell foam requires as 30mm～60mm according to different vibration and noise reducings.In engineering practice, elasticity closed-cell foam concrete can be substituted on original structure floor and use cement mortar to carry out levelling, the height of laying is 30mm, if the sound insulation factor requiring meets high request Separate Home floor crashing sound insulation standard≤65(dB), the height of laying can further be increased to 60mm.
Because elasticity closed-cell foam concrete is that the compatibility of cement-based material and building structure floor, cement mortar is good, can not produce hollowing phenomenon.
The beneficial effects of the utility model are: 1, can meet a point family floor crashing sound insulation standard≤75(dB) and high request Separate Home floor crashing sound insulation standard≤65(dB) floor sound insulating structure.
2, do not increase the ground level of floor, do not increase extra load.
3, meet existing construction process requirement.
4, operation is simple, with low cost, construction method is easy.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is sectional structural map of the present invention.
1. building structure floors in figure, 2. elasticity closed-cell foam concrete, 3. cement mortar, 4. surface material, 5. building structure facade, 6. elastic vibration isolation bar.
Detailed description of the invention
In the embodiment shown in fig. 1, on building structure floor (1), water is added to polypropylene fibre superbhort fiber, after rubber powder stirs, add cement, Admixture forms slurry after continuing to stir, water will foam at foaming machine after blowing agent dilution, after mixing with slurry, foaming use mechanization to be pumped into the scope of operation, directly build floating, natural curing becomes elasticity closed-cell foam concrete (2), after full during fencing lawn, directly at upper cement mortar (3) the paved surface layer material (4) that uses of elasticity closed-cell foam concrete (2), when paved surface layer material (4), cement mortar (3), between surface material (4) and building structure facade (5), elastic vibration isolation bar (6) is set.
Should be appreciated that not departing from scope of the present utility model, can make multiple change to above-described embodiment, and be applied to other occasions.All any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a floor sound insulating structure, formed by elasticity closed-cell foam concrete, elastic vibration isolation bar, cement mortar, surface material, it is characterized in that: described elasticity closed-cell foam concrete cast in situs is on building structure floor topping, on elasticity closed-cell foam concrete, use cement mortar paved surface layer material, at cement mortar, surface material and building structure facade, elastic vibration isolation bar is set.
2. floor sound insulating structure according to claim 1, is characterized in that: the described concrete thickness of elasticity closed-cell foam requires as 30mm～50mm according to different vibration and noise reducings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324446.5U CN203878934U (en) | 2014-06-18 | 2014-06-18 | Floor sound-insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324446.5U CN203878934U (en) | 2014-06-18 | 2014-06-18 | Floor sound-insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203878934U true CN203878934U (en) | 2014-10-15 |
Family
ID=51679450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420324446.5U Expired - Fee Related CN203878934U (en) | 2014-06-18 | 2014-06-18 | Floor sound-insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203878934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220862A (en) * | 2014-06-18 | 2016-01-06 | 厦门嘉达声学技术有限公司 | Floor sound insulating structure |
| CN111121270A (en) * | 2019-12-31 | 2020-05-08 | 江苏华晖设备工程有限公司 | Floating platform for high-rise building and manufacturing method thereof |
-
2014
- 2014-06-18 CN CN201420324446.5U patent/CN203878934U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220862A (en) * | 2014-06-18 | 2016-01-06 | 厦门嘉达声学技术有限公司 | Floor sound insulating structure |
| CN111121270A (en) * | 2019-12-31 | 2020-05-08 | 江苏华晖设备工程有限公司 | Floating platform for high-rise building and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20180618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |