KR20180029389A - Structure for isolating floor impact sound in community houses - Google Patents

Abstract

The present invention relates to a floor system with a composite sound blocking structure for absorbing a floor impact sound. An objective of the present invention is to block a floor impact sound of a lightweight impact sound and a heavy impact sound generated in an apartment house at a degree satisfying occupants to provide a comfortable residential environment. The floor system with a composite sound blocking structure for absorbing a floor impact sound includes a semidry sound-blocking layer installed on an upper side of a concrete slab layer, and a ceiling sound absorbing layer installed on a lower side of the concrete slab layer. The semidry sound-blocking layer includes: an EPS impact absorbing layer installed to be positioned on the upper side of the concrete slab layer; and a floor plastering layer poured on an upper surface of the EPS impact absorbing layer to be integrated, wherein a heating pipe is buried therein. The ceiling sound absorbing layer includes: a ceiling finishing panel layer installed on a lower surface of the concrete slab layer to be separated at a predetermined distance; and a resonance prevention layer seated and installed on the ceiling finishing panel layer to be positioned between the ceiling finishing panel layer and the concrete slab layer to reduce resonance generated in a ceiling space. A floor impact sound is reduced without resonance through a lightweight aerated concrete layer and a ceiling space.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a floor system having a composite sound-

The present invention relates to a floor system having a composite sound-absorbing structure for absorbing a floor impact sound, comprising a semitranslucent sound insulating layer including an EPS buffer layer on the upper side of a concrete slab layer, and a ceiling sound absorption Floor structure having a composite sound insulation structure that absorbs a floor impact sound efficiently absorbing and removing floor impact sound without a lightweight foamed concrete layer.

Noise and vibration are easily spread and transmitted to nearby buildings through the basic structure of the building. Particularly, it is a very important part of building design and construction to reduce the floor impact noise transmitted from the upper floor to the lower floor through slabs and walls installed at the bottom of each floor to a level that the lower floor user can tolerate .

Generally, a floor impact sound of a building is divided into a light impact sound and a heavy impact sound. The light impact sound refers to a sound transmitted to the lower floor due to a shock applied to the floor when a small object falls on the floor or moves furniture. When you jump or run, it means the sound that occurs when an adult walks.

Such floor impact noise causes a problem of interlayer noise in apartment buildings, office buildings, houses, and the like, and such interlayer noise is becoming a serious social problem such as deepening the conflict between the upper and lower stories.

However, since most of the apartment buildings have a basic structure, it is difficult to reduce the interlayer noise practically. Therefore, in order to reduce the floor impact sound in the past, a simple method of increasing the thickness of the slab wall It is widely used.

That is, conventionally, a reinforced concrete slab layer in which concrete is laid to divide the upper layer and a lower layer, a lightweight foamed concrete layer laid on the concrete slab layer for thermal insulation, a noise reduction material layer disposed on the lightweight foamed concrete layer, The floor structure of the apartment house is formed by a heating pipe such as a copper pipe or an accelerator pipe installed on the noise reduction material layer, a mortar layer covering the heating pipe, and a floor finishing material installed on the mortar layer.

However, when the multilayered bottom structure including the lightweight foamed concrete layer is provided as described above, the thickness of the interlayer wall increases, and the increase in the thickness of the interlayer wall reduces the internal space volume as compared with the height .

In addition, the thickness of the bearing wall increases due to the weight of the wall, and the material cost is increased, which is not desirable. In addition, it is difficult to reinforce the existing building basic structure in the reality that the demand for remodeling increases.

Particularly, although the conventional floor structure as described above has the effect of reducing the light weight impact sound, there are various problems such that it can not be expected to have a great effect in blocking the heavy impact sound corresponding to the most important cause of the interlayer noise.

Patent Registration No. 10-0724123 (May 25, 2007)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a floor impact sound insulation structure of a multi-unit house that provides a pleasant living environment by blocking light impact sound generated in a dwelling house and floor impact sound of a heavy impact sound to a satisfactory extent to tenants.

The present invention is characterized in that a semitransparent sound insulating layer is provided on the concrete slab layer, a ceiling sound absorbing layer is provided on the lower side of the concrete slab layer, and the semi-dry sound insulating layer comprises an EPS buffer layer disposed above the concrete slab layer, And a bottom floor layer formed on the upper surface of the EPS buffer layer so as to be integrally connected and having a heating pipe embedded therein, wherein the ceiling sound-absorbing layer includes a ceiling finish panel layer disposed at a predetermined distance from a lower surface of the concrete slab layer, And a resonance preventing layer disposed on the ceiling finishing panel layer so as to be positioned between the ceiling finishing panel layer and the concrete slab layer so as to reduce the resonance phenomenon generated in the ceiling space so as to prevent resonance through the lightweight foamed concrete layer and the ceiling space The floor impact sound is reduced.

As described above, according to the present invention, the ceiling sound absorbing layer including the EPS buffer layer, the semi-dry sound insulating layer composed of the bottom floor layer, and the ceiling finish panel layer and the resonance preventing layer is provided on the upper side with respect to the concrete slab layer, The floor impact sound, especially the heavy impact sound, can be efficiently absorbed and removed without the foamed concrete layer, and the amplification of the floor impact sound due to the resonance phenomenon generated below the slab layer can be reduced.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a floor impact sound of a heavy impact sound generating heavy sounds of a low frequency component such as a light weight impact sound that generates a lot of high frequency component sounds such as a falling sound of a bowl or a golf ball, To a satisfactory level to provide a comfortable living environment.

The present invention takes into consideration both the transmission of an impact sound and the transmission of an air sound by resonance, and thus has many effects such as exhibiting the maximum effect with a minimum simple configuration.

Figure 1 is an illustration of a structure according to the present invention;
Fig. 2 is a detailed view of portions A, B and C of Fig.
Figure 3 is another example showing the structure according to the present invention.
FIG. 4 is a view illustrating an example of a combination of the bottom layer and the EPS buffer layer according to the present invention.
5 is an exemplary diagram showing a high-strength EPS configuration according to the present invention.
6 is a view showing an example of a mortar filled groove shape of a high strength EPS according to the present invention

FIG. 1 is a view showing a structure according to the present invention, FIG. 2 is a detailed view of parts A, B and C of FIG. 1, FIG. 5 is a view showing a high strength EPS structure according to the present invention, FIG. 6 is a view showing a mortar filling groove shape of a high strength EPS according to the present invention, and FIG. FIG.

The present invention is characterized in that a semitransparent sound insulating layer 70 is provided on the concrete slab layer 10 and a ceiling sound absorbing layer 80 is provided on the lower side of the concrete slab layer 10,

The semitransparent sound insulating layer 70 includes an EPS buffer layer 20 disposed on the upper side of the concrete slab layer 10 and an EPS buffer layer 20 disposed on the upper surface of the EPS buffer layer 20, (30) in which the base layer (30) is embedded,

The ceiling sound absorbing layer 80 includes a ceiling finish panel layer 40 spaced a predetermined distance from the bottom surface 12 of the concrete slab layer 10 and a ceiling finish panel layer 40 and a concrete slab layer 10 And a resonance preventing layer (50) placed on the ceiling finishing panel layer (40) so as to be positioned between the ceiling finishing panel layer (40) and reducing the resonance phenomenon generated in the ceiling space.

That is, the present invention has a semitransparent sound insulating layer 70 composed of an EPS buffer layer 20 and a bottom floor layer 30 on the upper side of the concrete slab layer 10, a ceiling finish panel layer 40 on the lower side, And a ceiling sound-absorbing layer (80) including a resonance preventing layer (50) so that the floor impact sound, especially the heavy impact sound, can be efficiently absorbed and removed without the lightweight foamed concrete layer.

The foamed polystyrene (EPS) buffer layer 20 is laminated on the concrete slab layer 10 and is provided with a low-frequency weight reduction function 20 at a lower portion of the high-strength EPS 21 having a high-frequency light- And an elastic EPS (22) having an elastic layer (22).

The EPS buffer layer has a thickness (t) of about 55 to 65 mm, preferably about 58 to 62 mm, more preferably about 60 to 61 mm. That is, a typical cushioning material used in a conventional bottom layer structure has a thickness of about 20 to 30 mm, but the EPS buffer layer 20 of the present invention is formed to have a thickness of about 55 to 65 mm.

The thickness (t) of the EPS buffer layer is intended not only to reduce heavy impact sound but also to improve the workability of the bottom floor layer and the heating pipe while maintaining the heat insulating performance without pouring the foam concrete layer.

The high strength EPS 21 has a plurality of mortar filling grooves 23 formed on the upper surface thereof and a plurality of coupling grooves 24 through which the elastic EPS 22 is inserted and coupled to the lower surface of the high strength EPS 21, And is formed to have a predetermined depth to be staggered.

As shown in FIG. 5, the mortar filling grooves 23 have a predetermined depth on the upper surface of the high-strength EPS 21, a plurality of which are formed, and the inner surface 23a is formed as a vertical surface or an inclined surface. As shown in Fig. 6, so that the thickness interval S between the lower surface and the plurality of engagement grooves 24 formed on the lower surface is increased.

6, the coupling grooves 24 may be formed to have a straight line on the lower surface of the high-strength EPS 21, or a plurality of the coupling grooves 24 may be formed to maintain a constant spacing, It is preferable that the engaging grooves 24 are formed at regular intervals.

That is, in the high strength EPS 21, the inner surface 23a of the mortar filling groove 23 formed on the upper surface is formed as an inclined surface, and the coupling groove 24 formed on the lower surface so as to be staggered with the mortar filling groove 23 The high strength EPS 21 formed with the mortar filling grooves 23 and the coupling grooves 24 may be formed in a manner such that the mortar filling grooves 23 and The cracking phenomenon between the engaging grooves 24 is reduced.

The high strength EPS 21 has a thickness t1 of 40 to 45 mm, preferably about 40 to 42 mm, more preferably about 40 mm in consideration of working load and bottom impact sound reduction efficiency .

When the high-strength EPS 21 according to the present invention has a thickness of 40 to 45 mm, the floor impact sound is reduced by about 5 to 10 dB compared with the 1/3 grade of the conventional light weight / weight , And when the thickness is out of the range, the floor impact sound reduction efficiency is insufficient.

In addition, the thickness range of the high-strength EPS 21 has not only a reduction effect of the floor impact sound but also a function for stably fixing the heating pipe by the fixing clip.

The elastic EPS 22 is installed so that the upper side thereof is fitted into the coupling groove 23 of the high strength EPS and the lower side thereof is held in contact with the upper surface 11 of the concrete slab layer 10. The high- As shown in Fig.

That is, the coupling grooves 23 are formed at a predetermined interval on the lower surface 25 of the high-strength EPS 21, and a plurality of the coupling grooves 23 are formed in the longitudinal direction or the width direction. So that only the upper part of the elastic EPS 22 is inserted into the coupling groove 23 and the remaining part is exposed to the lower side of the high strength EPS 21 so that the lower surface of the elastic EPS 22 faces the upper surface of the concrete slab layer 11).

When the EPS EPS 22 is installed in the high strength EPS 21, a space layer 60 is formed between the concrete slab layer 10 and the bottom surface 25 of the high strength EPS. The effect of blocking the heavy impact sound and the light impact sound is also obtained.

The elastic EPS 22 constructed as described above has a thickness t2 of 40 to 50 mm and a density of 18 to 20 k (kg / m3). In other words, when the elastic EPS 22 has a thickness of less than 40 mm, it is difficult to expect an effect of reducing the low frequency heavy sound, and when the elastic EPS 22 is more than 50 mm, there is no significant difference in the low frequency heavy sound reduction efficiency. . Particularly, the elastic EPS has a thickness of 40 mm to 45 mm, more preferably about 40 mm, and has excellent workability and economy.

In addition, the EPS buffer layer 20 constructed as described above may further include a reinforcing plate 26 between the EPS buffer layer 20 and the slab layer 10.

The reinforcing plate 26 is further installed around the edge of the high strength EPS 21 so as to be positioned between the high strength EPS 21 and the high strength EPS 21 of the EPS buffer layer 20 and between the high strength EPS 21 and the wall .

The reinforcing plate 26 supports the end of the high strength EPS 21 of the EPS buffer layer 20 inserted into the slab layer 10 by insertion of the elastic EPS 22, And has a rectangular cross-sectional structure or has a cross-sectional structure in which a plurality of projections and depressions are formed on the lower surface.

The reinforcing plate 26 is made of expanded polystyrene (EPS), and has a function of connecting one high-strength EPS 21 and another high-strength EPS 21 adjacent thereto.

The bottom floor layer 30 is formed by a mortar placed on the EPS buffer layer 20 so as to fill the heating pipe 35. The bottom floor layer 30 includes a mortar support layer 31 filled in the mortar filling grooves 23 of high- And a base layer 32 formed on the upper side of the high strength EPS.

That is, when the mortar is poured onto the high strength EPS 21 of the EPS buffer layer 20, the mortar is filled into the mortar filling groove 23 to form the mortar supporting layer 31, The formed flooring layer 30 has a thickness t3 of the base layer and a thickness t3 of the mortar supporting layer added to the base layer to increase the overall rigidity and reduce the weight impact sound.

The mortar support layer 31 also has an additional function of preventing the movement of the bottom layer 30 and enhancing the bonding strength between the bottom layer 30 and the EPS buffer layer 21.

The heating pipe 35 is fixed to the high strength EPS 21 of the EPS buffer layer by a fixing clip 36. The installation of the heating pipe 35 by the fixing clip 36 and the casting of the heating pipe 35 are known, Method, so that a detailed description thereof will be omitted.

2 (b), the semi-dry sound insulating layer 70 having the above-described structure is formed such that the high strength EPS 21 provided with the elastic EPS 22 is spaced apart from each other by a predetermined distance, and a reinforcing plate The high strength EPS 21 provided with the elastic EPS 22 and the reinforcing plate 26 are placed on the slab layer 10 so that the concrete slab 26 is placed on the slab layer 10, Layer EPS 10 and the high-strength EPS 21 provided with the elastic EPS 22 are spaced apart from each other by a predetermined distance.

2 (a), the semi-printed sound insulating layer 70 is supported by the reinforcing plate 26 such that the high strength EPS 21 provided with the elastic EPS 22 is spaced from the wall by a predetermined distance Can be installed in the concrete slab layer (10).

Further, the semitone sound-absorbing layer of the present invention may further include a lateral stiffener 13 between itself and the wall, and the side stiffener 13 has a function of reducing noise and vibration propagated on the wall.

The ceiling finish panel layer 40 includes a ceiling finish panel 41 spaced a predetermined distance from the concrete slab layer 10 and fixing means for fixing the ceiling finish panel 41 to the concrete slab layer 40 42). The ceiling finishing panel layer 40 is installed such that the ceiling finishing panel 41 is positioned at a distance of about 170 to 200 mm from the concrete slab layer 10. Since the construction of the ceiling finish panel layer 41 is well-known in the art, a detailed description thereof will be omitted.

The resonance preventing layer 50 prevents resonance of the floor impact sound transmitted to the ceiling space 90 between the ceiling finishing panel 41 and the concrete slab layer 10 through the concrete slab layer 10, And is mounted on the upper surface of the finishing panel 41 so as to have a predetermined thickness.

The resonance preventing layer 50 is made of a foamed polyester material having porosity and is installed with a thickness t5 of about 30 to 40 mm. That is, when the resonance preventing layer 50 has a thickness of less than 30 mm, the effect of preventing the resonance of the floor impact sound is insufficient, and when the resonance preventing layer 50 is more than 40 mm, the resonance preventing effect is lowered. In particular, the anti-resonance layer 50 is provided to have a thickness of 30 mm to 35 mm, more preferably about 30 mm.

The anti-resonance layer 50 is installed inside the ceiling of the lower layer, and is fixed to the ceiling finishing panel 41 by a double-faced tape or a clip.

2, it is preferable that the resonance preventing layer 50 is installed along the circumference of the well ceiling except the well ceiling when the lower ceiling has the well ceiling 91. [

In addition, the present invention can further integrally form a haunch 95 on the lower surface 12 of the slab layer so as to be positioned between the concrete slab layer 10 and the wall 10 '.

The hatch 95 not only has the function of improving the rigidity of the concrete slab layer 10 but also has a function of reducing interlayer noise. Such a hunting 95 may be formed along the rim of the concrete slab layer 10 or may be formed integrally with at least one of the rims of the concrete slab layer 10.

In addition, the installation length L of the hatch 95 is not limited, but it is about 100 to 800 mm, preferably about 400 to 600 mm.

Hereinafter, the present invention will be described in detail with reference to the following examples.

Example 1

After installing elastic EPS (density 15k) of 25 mm, 30 mm, 40 mm, and 50 mm thickness on a concrete slab layer (210 mm), the weight sound was measured by an impact ball method. ].

[Table 1]

As shown in [Table 1], there is almost no difference in the buffering effect when the elastic EPS is 40 mm to 50 mm thick, and when it is compared with less than 40 mm, it is about 3 to 5 dB reduction effect.

Example 2

The 40mm thick elastic EPS was installed on the concrete slab layer (210mm), and the density of the elastic EPS was set to 15k, 18k, and 20k, and the weight was measured by the impact ball method. The results are shown in Table 2 below.

[Table 2]

As shown in [Table 2] above, it can be seen that the buffering effect on the weighted sound is the best at a density of 18k to 20k.

Example 3

Before and after installing a ceiling panel layer under the concrete slab layer (210 mm), a resonance prevention layer was installed on the ceiling panel layer and the weighted impact sound transmitted was measured. The results are shown in Table 3 below. At this time, a ceiling finishing panel (gypsum board) was installed to maintain a distance of about 170 mm from the concrete slab layer, and a resonance preventing layer (polyester) having a thickness of 10 mm, 30 mm and 60 mm was formed on the upper surface of the ceiling finishing panel And fixed by a double-sided tape.

[Table 3]

As shown in [Table 3] above, when the ceiling is installed before and after the ceiling installation, the heavy impact sound after the ceiling installation is increased by about 5 dB due to the resonance occurring in the space between the ceiling panel and the slab layer If the resonance preventing layer is 30 mm thick, it is seen that there is a sound absorbing effect of about one level, about 3 dB in comparison with that before the ceiling installation, even though the ceiling is installed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): concrete slab layer (11): upper surface
(12): lower surface (13): side cushioning material
(20): EPS buffer layer (21): high strength EPS
(22): elastic EPS (23): mortar filling groove
(24): coupling groove (25): lower surface
(26): reinforcing plate (30): bottom floor layer
(31): mortar support layer (32): base layer
(40): Ceiling finish panel layer (41): Ceiling finish panel
(42): fixing means (50): resonance preventing layer
(60): Spatial layer (70): Semi-transparent sound insulating layer
(80): a ceiling sound-absorbing layer (90): a ceiling space
(95): haunch (100): floor system

Claims (7)

A semi-dry sound insulating layer 70 is provided on the upper side of the concrete slab layer 10 and a ceiling sound absorbing layer 80 is provided on the lower side of the concrete slab layer 10,
The semitransparent sound insulating layer 70 includes an EPS buffer layer 20 disposed on the upper side of the concrete slab layer 10 and an EPS buffer layer 20 disposed on the upper surface of the EPS buffer layer 20, (30) in which the base layer (30) is embedded,
The ceiling sound absorbing layer 80 includes a ceiling finish panel layer 40 spaced a predetermined distance from the bottom surface 12 of the concrete slab layer 10 and a ceiling finish panel layer 40 and a concrete slab layer 10 And a resonance preventing layer (50) placed on the ceiling finish panel layer (40) so as to be positioned between the resonance preventing layer (50) and the resonance preventing layer (50)
Wherein the floor impact sound is reduced without resonance through the lightweight foamed concrete layer and the ceiling space.
The method of claim 1,
The EPS buffer layer is a multi-layer structure in which elastic EPS (22) having a low frequency weight reduction function is coupled to a lower portion of a high strength EPS (21) having a high frequency light weight sound reduction function and a low frequency weight sound reduction function. A floor system having a composite sound insulation structure for absorbing sound.
The method of claim 1,
The EPS buffer layer is composed of a high-strength EPS 21 having a thickness t1 of 40 to 45 mm and an elastic EPS 22 having a thickness t2 of 40 to 50 mm and a density of 18 to 20k (kg / m3) , And thickness (t) of 55 to 65 mm,
Wherein the resonance preventing layer is made of a polyester material having a thickness t5 of 30 to 40 mm.
The method according to claim 2 or 3,
The high strength EPS 21 has a plurality of mortar filling grooves 23 formed on the upper surface thereof and a plurality of coupling grooves 24 through which the elastic EPS 22 is inserted and coupled to the lower surface of the high strength EPS 21, And a floor having a predetermined depth to stagger the floor impact sound.
The method of claim 4,
The mortar filling grooves 23 are formed so that the inner surface 23a is formed as an inclined surface so that the thickness spacing S between the inner surface 23a and the coupling grooves 24 formed on the lower surface is increased. Equipped floor system.
The method of claim 1,
A floor system with a composite sound insulation structure for absorbing a floor impact sound, characterized in that a haunch (95) is further formed on the lower surface (12) of the concrete slab layer.
The method of claim 1,
Wherein a reinforcing plate (26) is further provided between the high strength EPS (21) of the EPS buffer layer (20) and the slab layer (10).

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