KR200473232Y1 - Soundproof Structure of between floors in building - Google Patents

Soundproof Structure of between floors in building Download PDF

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Publication number
KR200473232Y1
KR200473232Y1 KR2020140001548U KR20140001548U KR200473232Y1 KR 200473232 Y1 KR200473232 Y1 KR 200473232Y1 KR 2020140001548 U KR2020140001548 U KR 2020140001548U KR 20140001548 U KR20140001548 U KR 20140001548U KR 200473232 Y1 KR200473232 Y1 KR 200473232Y1
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KR
South Korea
Prior art keywords
sound
absorbing layer
absorbing
noise
layer
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KR2020140001548U
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Korean (ko)
Inventor
우명운
이영란
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이영란
우명운
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Priority to KR2020140001548U priority Critical patent/KR200473232Y1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

Abstract

The object of the present invention is to provide a floor structure or a wall which separates a floor of a building without damaging the interlayer noise without increasing the thickness of the slab, Thereby providing an interlayer noise material.
A first sound absorbing layer is formed on the flat plate, the first sound absorbing layer is formed continuously on the entire surface of the upper and lower portions so that the first protrusions are provided on one side and the opposite side respectively, And a second sound-absorbing layer laminated to a lower portion of the first sound-absorbing layer and configured to have the same structure as the first sound-absorbing layer to absorb noise, wherein a buffer member is installed between the first and second sound- Wherein the buffer member comprises: a first sound absorbing layer formed on a lower portion of the first sound absorbing layer, the first sound absorbing layer being provided on an upper surface of the first sound absorbing layer; So as to function as a buffer between the first sound-absorbing layer and the second sound-absorbing layer.

Description

Soundproof structure of between floors in building

More particularly, the present invention relates to a floor structure or a floor structure for separating a floor of a building, and more conveniently and stably installed in the interior of the floor to provide excellent soundproof and vibration-proof performance against interlayer noise and vibration. The present invention relates to an interlaminar noise absorbing material capable of being absorbed.

In general, Structure Borne Noise refers to the noise emitted from the inside and the outside of the building structure to be transmitted to the ceiling, floor, wall, etc. of the building and radiated directly into the air. It is also called solid borne noise because the transmission medium of vibration phenomenon is mostly solid like structure.

Structural transmission noise generated from the building structure includes floor impact noise generated inside the building, noise caused by the operation of the building equipment, noise caused by the water supply piping, and piano noise. In addition, there are vibrations caused by cars running on the outside of buildings, vibration caused by railroad, noise caused by vibration phenomenon occurring in road construction, construction, and civil works, spreading to the building structure through the ground.

Especially, in Korea, where the housing type of apartments such as apartments is increasing, complaints about structural transmission noise are rising and it is expected that they are becoming more sensitive to the noise phenomenon. The reason for this is that due to the lack of housing and the centralization of the city, the thickness of the slab has been thinned due to the rationalization of the structural plan of the high-rise and high-density building structures and the cost reduction, and the building structure itself has become lightweight, Because it was dry. Therefore, shocks and vibrations occurring inside and outside the building structure tend to emit noise to the room, ceiling, wall, floor, etc. through the structure of the building.

Typical structural transmission noise is the floor impact noise between the upper and lower floors, the noise caused by the drainage system, and the noise generated during the elevator operation.

A double floor impact sound is the noise generated in the lower floor and adjacent space due to the vibration of the floor of the building caused by the impact applied to the floor due to the movement, dropping, or walking of a heavy object.

As society becomes more sophisticated and diversified, the desire for personal space becomes stronger, and it demands quietness along with privacy protection in residential space. However, if the residential space such as an apartment is close to each other, the effect of the damping of the noise due to the distance can not be expected. Recently, since the construction of the single structure due to the trend of the high- .

The floor impact sound depends heavily on the size of the impact noise source acting as a sound source, the characteristics of the floor structure to which the vibration energy is transmitted, and the spatial structure (state) of the lower (lower layer) In addition, the impact noise source of the floor impact sound is divided into a high-frequency impact sound (light impact sound) and a low-frequency impact sound (heavy impact sound).

Lightweight impact sound is a noise generated when a chair is pulled, a shoe heel, or a solid object falls. A heavy impact sound is a floor impact sound generated when walking or jumping barefoot.

According to survey data on sound insulation performance of existing apartment buildings in Korea, it is estimated that the weight impact sound is 65dB and the light impact sound is 80dB in the floor impact sound. This is more than the lowest grade (60dB) for floor impact noise in Japan, suggesting that fundamental measures against light weight and heavy impact sound are necessary.

The following was developed to reduce floor impact noise.

The first is to improve the sound insulation performance of the insulation layer.

The floor structure of a typical domestic apartment consists of a concrete slab and a thermal insulation layer serving as a structure, a heat storage layer (press layer) for pressing a pipe, a finish layer of a vinyl sheet or a plank system, and a ceiling scene treated with a gypsum board. Currently, the slab thickness of domestic apartment is about 120 ~ 150㎜, and the heat storage layer where the hot water piping is placed is about 40 ~ 50㎜. Most of the ceiling finishing materials are made of gypsum board of less than 10 mm.

The most effective method for improving the floor impact sound due to the characteristics of the floor structure is to improve the sound insulation performance of the insulation layer. Therefore, in order to improve the sound insulation performance of the insulation layer, a buffer material such as a tire crushing chip, a foam rubber, and a pellet of a rubber material is applied in a thickness of 10 to 20 mm. Such a floor structure is called a floating floor structure and may be classified into a wet type and a dry type. However, such improvement measures are effective for light impact sound, but it is understood that the improvement effect is less for heavy impact sound.

On the other hand, it is known that there is little effect of reducing the floor impact sound due to the increase of the thickness of the heat insulating layer.

The second option is to increase the slab thickness.

Domestic apartment floor structure consists mostly of homogeneous slab and Ondol construction layer. If the slab thickness is increased with respect to the floor impact sound, not only the area density of the slab is increased, but also the stiffness increasing effect is obtained, so that the vibration phenomenon of the floor surface can be suppressed. However, in reality, increasing the thickness of the slab to more than 200 mm is often impossible in the design and construction process.

Korean Patent Laid-Open No. 10-2010-0067848, interlayer noise material. Korean Patent Registration No. 10-0771495, Soundproof and dustproof interior material for eco-friendly construction.

The object of the present invention is to provide a floor structure or a wall which separates a floor of a building without damaging the interlayer noise without increasing the thickness of the slab, And to provide an interlayer noise material.

To achieve the above object, the present invention provides an interlayer noise attenuator comprising: a flat plate; A first sound-absorbing layer provided on the entirety of the upper and lower surfaces of the first and second protrusions so that the first protrusions are provided on one surface and the opposite surface, respectively, so as to be able to absorb noise; And a second protrusion is provided on one surface and the opposite surface so as to have the same structure as that of the first sound-absorbing layer so as to be laminated on the lower portion of the first sound-absorbing layer, And a second sound-absorbing layer continuously formed on the entire surface of the first sound-absorbing layer, wherein a buffer member is provided between the first sound-absorbing layer and the second sound-absorbing layer, wherein the buffer member comprises: And a second protrusion formed on an upper portion of the second sound-absorbing layer so as to be in contact with a lower surface thereof to function as a buffer between the first sound-absorbing layer and the second sound- .

Wherein the first and second sound-absorbing layers comprise: a sound-absorbing member made of any one of paper or a plastic material in which protrusions are continuously formed on the entire surface and the protrusions are provided between the protrusions; And a reinforcing member of a glass fiber sheet interposed within the sound absorbing member so that the sound absorbing member has a two-layer structure. Preferably, a ceramic coating layer is provided on the outer surface of the sound absorbing member for the flame retarding treatment.

A low frequency absorbing layer for absorbing noise corresponding to a low frequency region of the generated noise; And a high frequency absorbing layer for absorbing noise corresponding to a high frequency region of the generated noise, wherein the low frequency absorbing layer is made of MMA resin having a thickness of 2 to 10 mm, and the high frequency absorbing layer is made of an unsaturated polyester resin .

It is preferable that any one or both of the first and second sound-absorbing layers are formed so that sound-absorbing holes capable of absorbing noise penetrate therethrough.

The present invention has the effect of significantly reducing the interlayer noise without increasing the thickness of the slab, thereby reducing the construction cost due to the increase of the slab thickness, and also the noise caused by the floor impact sound in a dense space such as an apartment The damage can be remarkably reduced.

1 is a perspective view showing a structure of an interlayer noise source according to the present invention,
FIG. 2 is a perspective view showing a first sound-absorbing layer provided in the interlayer noise source according to the present invention,
3 is a perspective view showing an embodiment of the interlaminar noise material according to the present invention,
Fig. 4 is a sectional view showing the structure of Fig. 3,
FIG. 5 is an enlarged view of the "A" portion of FIG. 1,
FIG. 6 is an enlarged view showing another embodiment of the "A" portion of FIG. 1,
7 is an enlarged view showing still another embodiment of the "A"

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1, a planar plate 110 is provided on the interlayer noise source 100 according to the present invention. The flat plate 110 is for flattening the concrete layer formed on the flat plate 110, and may be formed to have a predetermined area as a material capable of absorbing noise.

The flat plate 110 may be provided with a low frequency absorbing layer 112 and a high frequency absorbing layer 114. The low-frequency absorbing layer 112 absorbs noise corresponding to a low-frequency region of the generated noise, and the high-frequency absorbing layer 114 absorbs noise corresponding to a high-frequency region of the generated noise.

At this time, the low-frequency absorption layer 112 is applied to the flat plate 110 to absorb noise corresponding to a low-frequency region of the generated noise. The low-frequency absorption layer 112 has a thickness of 2 to 10 mm MMA resin.

It has been experimentally found that about 20 to 30% of the low frequencies included in the noise generated by the low frequency absorbing layer 112 made of such MMA resin are absorbed. Therefore, in the low frequency absorbing layer 112 of the present invention, a part of the heavy impact sound generated in the building structure can be absorbed.

The high frequency absorbing layer 114 is laminated on the low frequency absorbing layer 112 to absorb noise corresponding to the high frequency region of the generated noise. The high frequency absorbing layer 114 has a thickness of 1 to 5 mm It is preferable that the film is composed of an unsaturated polyester resin having a thickness of 10 mu m.

It has been experimentally found that about 15 to 20% of the high frequency included in the noise generated by the high frequency absorbing layer 114 made of such an unsaturated polyester resin is absorbed. Therefore, in the high frequency absorbing layer 114 of the present invention, a part of the light impact sound generated in the building structure can be absorbed.

Some of the high frequency and low frequency included in the noise are partially absorbed and passed through the high frequency absorbing layer 114 and the low frequency absorbing layer 112 and some of the remaining noise passes through the first and second sound absorbing layers 120 and 120, Absorbed by the layer 130 and the buffer member 140.

As shown in the drawing, the first sound-absorbing layer 120 is provided in the interlayer noise source 100 according to the present invention. The first sound-absorbing layer 120 is laminated on the lower surface of the flat plate 110 and has first and second recesses 122a and 122b and first protrusions 124a and 124b And is continuously formed over the entire surface. That is, the first sound-absorbing layer 120 has first and second protrusions 124a and 124b formed on the upper and lower surfaces thereof, respectively, so that the first recesses 122a and 122b are formed between the first protrusions 124a and 124b Are formed as upper and lower parts.

As shown in the drawing, the second sound-absorbing layer 130 is provided on the interlayer noise source 100 according to the present invention. The second sound-absorbing layer 130 is laminated to a lower portion of the first sound-absorbing layer 120 to have the same structure as the first sound-absorbing layer 120 to absorb noise.

The second sound-absorbing layer 130 is continuously formed on the entire surface of the second concave portions 132a and 132b and the second protrusions 134a and 134b on one side and the opposite side, respectively. That is, the second sound-absorbing layer 130 has upper and lower second protrusions 134a and 134b formed on the entire surface thereof to form second recessed portions 132a and 132b between the second protrusions 134a and 134b Are formed as upper and lower parts.

The first and second sound-absorbing layers 120 and 130 are for absorbing noises and may include a sound-absorbing member 136 and a reinforcing member 138. It is preferable that the sound absorbing member 136 is made of paper or plastic and the reinforcing member 138 is installed inside the sound absorbing member 136 so that the sound absorbing member 136 has a two- It is good to do.

The reinforcing member 138 is made of a glass fiber sheet and the glass fiber sheet is installed so as to surround the sound absorbing member 136. The outer surface of the sound absorbing member 136 is coated with a ceramic coating layer 135 Is preferably installed.

The shape of the first and second recessed parts 132a and 132b and the first and second protrusions constituting the first and second sound-absorbing layers 120 and 130 may be a polygonal shape such as a conical shape, a triangular shape or a quadrilateral shape The second and third concave portions 132a and 132b and the first and second convex portions 134a and 134b to induce a diffuse reflection by the first and second concave portions 132a and 132b, Can be obtained.

It is preferable that the sound absorbing holes 139, which can absorb noise, pass through any one or both of the first and second sound absorbing layers 120 and 130. The formation of the sound-absorbing holes 139 can more effectively absorb noise, and the sound-absorbing holes 139 are preferably made of micro-pores.

As shown in the drawing, the noise absorbing material 100 according to the present invention is provided with a buffer member 140. The buffering member 140 is provided between the first sound-absorbing layer 120 and the second sound-absorbing layer 130 to function as a buffer between the first sound-absorbing layer 120 and the second sound-absorbing layer 130.

The cushioning member 140 may include a first sound absorbing layer 120 and a second sound absorbing layer 130. The first sound absorbing layer 120 may be formed on the first sound absorbing layer 120, 2 protrusions 134a so as to be in contact with the lower surface.

However, since the buffer member 140 is installed in contact with the upper surface of the first protrusion 124b formed at the lower portion of the first sound-absorbing layer 120 and the second protrusion 124b formed at the upper portion of the second sound- And the lower surface may be in contact with the recessed portion 132a.

The cushioning member 140 may be made of a synthetic resin capable of being elastically deformable and may be fixed with an adhesive to closely contact the first and second sound-absorbing layers 120 and 130 and the buffer member 140.

At this time, it is preferable that the buffer member 140 is installed at an arbitrary position between the first and second sound-absorbing layers 120 and 130 to improve the buffering and absorbing property against the load. That is, the buffer member 140 may be regularly or irregularly arranged between the first and second sound-absorbing layers 120 and 130.

The cushioning member 140 may be canceled by vibrations transmitted from other materials, or gradually absorbed by the first and second sound-absorbing layers 120 and 130, thereby alleviating vibrations due to noise.

Therefore, the buffer member 140 is preferably made of foamed rubber or a pellet of a rubber material. The buffer member 140 may be dispersed by the buffer member 140 and absorbed while the strength of the noise decreases.

According to the present invention, the sound insulation performance of the flooring impact sound is approximately 70 to 80% with respect to the light weight impact sound of the floor impact sound although the sound insulation performance is different according to the intensity of the noise (decibel) The sound absorption performance of about 40 to 50% can be exhibited.

The first and second sound-absorbing layers 120 and 130 are formed of two layers and the reinforcing member 138 is disposed inside the first and second sound-absorbing layers 120 and 130. The first and second sound- So that each sound-absorbing layer has a two-layer structure, thereby maximizing the sound absorption effect and increasing the absorption performance up to 75%.

The present inventive interlayer noise source 100 may be installed on the top of a slab of a building to reduce floor impact noise, but may also be installed on a wall or ceiling.

100 - Interlayer noise material 110 - Plate
120 - first sound-absorbing layer 122a, 122b -
124a, 124b - a first protrusion 130 - a second sound absorbing layer
132a, 132b - first incisal parts 134a, 134b - second projections
136 - Sound absorption member 138 - Reinforcing member
139 - Sound absorbing ball 140 - Buffer member

Claims (4)

A flat plate 110;
The first protrusions 124a and 124b are disposed on the lower surface of the flat plate 110 so that the first recesses 122a and 122b are formed on one surface and the opposite surface, respectively, A first sound-absorbing layer 120 continuously formed on the entire surface; And
132a and 132b are provided on one surface and the opposite surface of the first sound-absorbing layer 120 so as to have the same structure as that of the first sound-absorbing layer 120 so as to be stacked below the first sound- And a second sound-absorbing layer (130) having second and third protrusions (134a, 134b) formed continuously on the entire surface,
A buffer member 140 is provided between the first sound-absorbing layer 120 and the second sound-absorbing layer 130,
The buffer member 140 includes:
The upper surface of the first sound absorbing layer 120 is contacted with the first recessed portions 122a and 122b formed on the lower portion of the first sound absorbing layer 120 and the second protrusions 134a, 134b of the first sound-absorbing layer 120 and the second sound-absorbing layer 130 are in contact with the lower surface of the first sound-absorbing layer 120 and the second sound-absorbing layer 130, respectively.
The method according to claim 1,
The first and second sound-absorbing layers 120 and 130 include:
A sound absorbing member (136) made of any one of paper or a plastic material having protrusions continuously formed on an entire surface thereof so as to have protrusions between the protrusions; And
And a reinforcing member 138 of a glass fiber sheet interposed within the sound absorbing member 136 so that the sound absorbing member 136 has a two-layer structure,
Wherein a ceramic coating layer (135) is provided on the outer surface of the sound absorbing member (136) for a fire retardant treatment.
The method according to claim 1,
The flat plate 110 is provided with:
A low frequency absorbing layer 112 for absorbing noise corresponding to a low frequency region of the generated noise; And
A high frequency absorbing layer 114 for absorbing noise corresponding to a high frequency region of the generated noise is provided,
The low-frequency absorbing layer 112 is made of MMA resin having a thickness of 2 to 10 mm,
Wherein the high-frequency absorbing layer (114) is made of an unsaturated polyester resin having a thickness of 1 to 5 mm.
The method according to claim 1,
Wherein at least one of the first and second sound-absorbing layers (120, 130) is formed with sound-absorbing holes (139) through which noise can be absorbed.
KR2020140001548U 2014-02-28 2014-02-28 Soundproof Structure of between floors in building KR200473232Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102147621B1 (en) * 2020-02-12 2020-08-24 김재성 Structure for reduction noise between floors
KR102580462B1 (en) 2023-02-16 2023-09-20 주식회사 미트하임 Multi-layer sound insulation material laminated a noise absorbing part with a jar, cylinder and concavo-convex structure and a damper with a vibration blocking function, manufacturing method thereof, floor structure of building abd construction method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200378483Y1 (en) 2004-12-07 2005-03-11 홍석표 Prevention of noises device between floor of building
KR200405592Y1 (en) 2005-05-25 2006-01-10 박기호 Floor finishing material using honeycomb structure
KR20060078348A (en) * 2004-12-31 2006-07-05 강연도 Isolating multi panels for floor to floor impact sound of building
KR20070033513A (en) * 2005-09-21 2007-03-27 장의준 Construction internal organs re-and the manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200378483Y1 (en) 2004-12-07 2005-03-11 홍석표 Prevention of noises device between floor of building
KR20060078348A (en) * 2004-12-31 2006-07-05 강연도 Isolating multi panels for floor to floor impact sound of building
KR200405592Y1 (en) 2005-05-25 2006-01-10 박기호 Floor finishing material using honeycomb structure
KR20070033513A (en) * 2005-09-21 2007-03-27 장의준 Construction internal organs re-and the manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102147621B1 (en) * 2020-02-12 2020-08-24 김재성 Structure for reduction noise between floors
KR102580462B1 (en) 2023-02-16 2023-09-20 주식회사 미트하임 Multi-layer sound insulation material laminated a noise absorbing part with a jar, cylinder and concavo-convex structure and a damper with a vibration blocking function, manufacturing method thereof, floor structure of building abd construction method thereof

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