KR100743246B1 - Structure for isolating the floor impact sound in community houses - Google Patents

Abstract

A floor impact sound isolating structure of an apartment house is provided to make residential environment pleasant by cutting off heavy-weight floor impact noise occurring on the upper floor of an apartment house effectively using a polyurethane filter foam panel. The floor impact sound isolating structure of an apartment house for cutting off heavy-weight floor impact noise occurring on the upper floor of an apartment house effectively includes a concrete slab(1) provided with reinforcing bars, many vibration isolators(11) placed on the upper side of the concrete slab at regular intervals, an insulation structure(10) provided with insertion grooves on the lower side to insert each vibration isolator and formed with expanded polystyrene materials to be lower than the height of the vibration isolators to form a gap between the lower side and the concrete slab, finishing mortar(13) coupled with the upper side of the insulation structure, and a polyurethane filter form panel(16) placed between the upper side of the concrete slab and the lower side of the vibration isolators. Hereon the polyurethane filter form panel is manufactured with 64 weight percent polyether polypropylene glycol, 7 weight percent polyether copolymer polyol, 26.1 weight percent toluene diisocynate, 0.5 weight percent organic stanneus octoate, 0.4 weight percent tertiary amine/glycol mixture, 0.8 weight percent N,N-dimethyl amino ethanol, 0.2 weight percent polyalkylene oxidemethyl siloxane copolymer and 1 weight percent color paste.

Description

Structure for isolating the floor impact sound in community houses}

1 is a schematic diagram showing a generation model of a general floor impact sound,

2 is a block diagram of a floor structure of a conventional multi-unit house,

3 is a block diagram of a floor impact sound insulation structure of a multi-unit house of the first application,

4 is a perspective view of an insulating structure that is a component of the bottom impact sound insulation structure of the prior application,

5 is a plan view of the insulating structure of FIG.

6 is a bottom view of the thermal insulation structure of FIG. 4,

7 is a block diagram of a floor impact sound insulation structure of a multi-family house according to the present invention

8 is a plan view for showing the planar dimension of the thermal insulation specimen specimen that is a component of the present invention,

9 is a front view for showing the front dimension of the insulating structure specimen of Figure 8,

10 is a table showing the results of light floor impact sound measurement in Example 1 and Comparative Examples 1 to 3,

11 is a table showing the results of measuring the weight floor impact sound in Example 1 and Comparative Examples 1 to 3,

12A is a graph showing the results of the measurement of light weight floor impact sound for the floor impact sound insulation structure of the multi-unit house in Example 1 of the present invention, and FIG. 12B is a weight floor for the floor impact sound insulation structure of the multi-unit house in Example 1 of the present invention; Graph showing the impact sound measurement results,

FIG. 13A is a graph showing a light weight floor impact sound measurement result for the floor impact sound insulation structure of the multi-family house of Comparative Example 1, and FIG. 13B is a graph showing a weight floor impact sound measurement result for the floor impact sound insulation structure of the multi-family house of Comparative Example 1 ,

14A is a graph showing the results of the measurement of lightweight floor impact sound for the floor impact sound insulation structure of the multi-family house of Comparative Example 2, and FIG. 14B is a graph illustrating the results of the measurement of heavy floor impact sound of the floor impact sound insulation structure of the multi-family house of Comparative Example 2 ,

FIG. 15A is a graph showing a light weight floor impact sound measurement result for the floor impact sound insulation structure of the multi-family house of Comparative Example 3, and FIG. 15B is a graph showing a weight floor impact sound measurement result for the floor impact sound insulation structure of the multi-family house of Comparative Example 3 to be.

※ Explanation of code for main part of drawing

1: concrete slab 2: lightweight foamed concrete

3: finish mortar 4: surface finish

10: insulation structure 10a: insertion groove

10b: groove

11: dustproof material 12: heating piping

13: Finish mortar 15: Wall buffer

16: polyurethane filter foam

The present invention relates to a floor impact sound insulation structure of a multi-family house, and more particularly, to a floor impact sound insulation structure of a multi-unit house to provide a comfortable living environment by more completely blocking the heavy impact sound generated in the upper floor of the multi-family house.

Floor impact sound is a sound radiated into a lower generation through floor slabs, ceilings, or walls when an impact such as a person walking or falling objects is applied on the upper floor of a multi-family house such as an apartment.

In general, the concrete slab structure is a good sound insulation material because it blocks air propagation well, but if it directly impacts or vibrates the concrete structure, it becomes solid wave sound and is hardly attenuated and is transmitted to other adjacent generations. It has the property of being radiated to.

Floor impact sound is divided into light impact sound that generates a lot of high frequency components such as falling sounds of bowls, golf balls, and chair movements, and heavy impact sound that generates a lot of low frequency components such as adult walking and children's skipping. It is becoming.

In the case of houses in Europe and the United States, the floor shock sound is mainly designed to prevent heavy impact sound because a lot of people walk and wear shoes, that is, the impact sound caused by women's high heels. Because habits have a sedentary lifestyle, it should be a structure that can prevent light impact sounds in addition to the heavy impact sounds.

When the generation model of the floor impact sound is briefly shown, it can be classified into an impact source, a floor structure, and a lower space as shown in FIG. 1.

In Fig. 1, M _t is the mass of the impact source (kg), V _t is the impact velocity of the impact source (m / s), k _c is the elastic modulus of the impact surface (N / m ² ), and r _c is the impact surface. The coefficient of friction resistance (N / m / s) and M _s are the mass (kg) of the floor slab. Here, M _t and M _s are fixed in the prior art, and mainly controls k _c and r _c to block the floor shock sound.

As shown in FIG. 2, the floor structure of a conventional multi-family house is coated on a concrete slab 1 including reinforcing bars and the slab 1, and is made of lightweight foamed concrete 2 for insulation and the lightweight foamed concrete. 2) is applied to the finishing mortar (3) is applied on the heating pipe is installed, and the surface finishing material (4) attached by an adhesive on the finishing mortar (3).

By the way, the conventional floor impact sound insulation structure blocks light impact sound by satisfactorily by adjusting the above-described coefficients k _c and r _c , but does not block heavy impact sound by satisfactorily, thus causing noise damage to the occupants. In order to solve this problem of heavy impact sound, the government has increased the thickness of the concrete slab 1 from 150 to 180 mm to 210 mm, or the slab is 210 mm instead of leaving the thickness of the concrete slab 1 as it is. The current situation is forcing the development and construction of floor structures that have an equal sound insulation effect.

However, thickening the concrete slab (1) is a problem in that the construction cost is high in many aspects and the height of the apartment is high, so it is not easy to adopt it, and the sound insulation structure is improved, and the thickness of the concrete slab (1) is 210 mm. It is desirable to give the same sound insulation effect.

In view of the above situation, some of the present inventors have developed a patent application as a 2005-103013 by developing a floor-impact sound insulation structure of a multi-unit house as shown in FIGS. 3 to 6.

The bottom impact sound insulation structure of the first application is a plurality of dustproof material 11 is arranged at regular intervals from side to side on the upper surface of the concrete slab 1, the insertion groove (10a) that each of the plurality of dustproof material 11 is fitted on the lower surface. Is formed and the depth of the insertion groove (10a) is lower than the height of the dustproof material 11 to form a gap (c) between the concrete slab 1 and the insulation structure of the foam polystyrene material 10, The heating pipe 12 is disposed on the upper portion of the heat insulating structure 10, and the heating pipe 12 and the finishing mortar 13 is coupled to the upper portion of the heat insulating structure (10). Reference numeral 15 is a wall buffer.

The insulating structure 10 is prepared by adding a foaming agent such as pentane or butane to the polystyrene resin as foamed polystyrene, heat curing and generating bubbles by forming a foamed resin and polymerizing a styrene monomer.

The insulation structure 10 has an insertion groove 10a formed on the lower surface thereof, and the depth of the groove is lower than the height of the dustproof material 11 so that the dustproof material 11 protrudes downward when the dustproof material 11 is inserted. have. Therefore, a gap (c), which is an air layer, is formed between the upper surface of the concrete slab 1 and the lower surface of the insulating structure 10.

In addition, the groove 10b is formed on the upper surface of the insulating structure 10 to increase the coupling force with the finishing mortar 13 of the upper portion and to prevent the movement of the position.

As the material of the dustproof material 11, polyurethane, EVA (Ethylene Vinyl Acetate), rubber, PE (Polyethylene), EPP (Expandable Polypropylene) may be used.

The anti-vibration material 11 is a self-forming soft foam having a micro cell structure, and belongs to a thermosetting resin.

The floor shock sound insulation structure of the apartment house of the previous application is composed of the above-described dustproof material 11 having excellent dustproof performance between the concrete slab 1 and the insulation structure 10, and the air gap clearance c is formed, so that the heavy impact sound And the effect of blocking the light impact sound is excellent.

In addition, the insulating structure 10 not only prevents the heat of the heating pipe 12 from being transferred to the bottom, but also performs a function of soundproofing of floor impact sound, that is, soundproofing and dustproofing. Therefore, the floor shock sound blocking effect is further improved.

However, despite the floor sound insulation structure of the previous application, the person living in the apartment needs to provide a better sound insulation structure because they want to sound more completely the impact sound heard from the upper floor.

The present invention has been made in view of the above-mentioned circumstances, and improves the blocking effect of the floor shock sound of heavy shock sound, which generates a lot of low frequency components such as floor shock sound, especially adult walking, children's skipping, and more comfortable living environment. Its purpose is to provide a soundproofing structure for the floor impact of multi-unit housing.

Floor impact sound insulation structure of a multi-unit house according to the present invention for achieving the above object is a concrete slab including a reinforcing bar, a plurality of dustproof material disposed at a predetermined interval from side to side on the upper portion of the concrete slab, the plurality of dustproof materials on the lower surface Insertion grooves are formed to be inserted into each other, and the depth of the insertion grooves is lower than the height of the dustproof material so that a gap is formed between the concrete slab and the insulation structure made of expanded polystyrene material, disposed above the insulation structure. In the floor impact sound insulation structure of a multi-family house comprising a heating pipe and a finishing mortar covering the heating pipe and joining the upper portion of the insulating structure, between the upper surface of the concrete slab and the lower surface of the plurality of dustproof material, density 31.72 Kg / m 3, hardness (ILD 25%) 25.34 Kg / 314 cm 2, tensile strength 1.453 Kg / cm 2. A 10 mm thick plate-shaped polyurethane filter foam having an elongation of 121.42%, tear strength of 1.150 Kg / cm and an elasticity of 35% is disposed.

The floor shock sound insulation structure of the multi-unit house according to the present invention is also an organic compound wherein the polyurethane filter foam is 64 wt% of polyether polypropylene glycol, 7 wt% of polyether copolymer polyol, 26.1 wt% of toluene diisocyanate, and the first active agent. 0.5 wt% stainless steel octoate, 0,4 wt% of the second amine / glycol mixture and 0.8 wt% of N, N-dimetallic amino ethanol, 0.2 wt of polyalkylene oxydimethyl siloxane copolymer of silicone surfactant %, And 1 wt% of the color paste.

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

7 is a block diagram of the floor sound insulation structure of the multi-unit house according to the invention.

As shown in Figure 7, the bottom impact sound insulation structure of the present invention is a concrete slab (1) including a reinforcing bar, as shown in Figures 3 to 6, a plurality of spaced at a predetermined interval left and right on top of the concrete slab (1) Of the anti-vibration material 11, the lower surface of the insertion groove 10a is formed in which the plurality of anti-vibration material 11 is fitted, respectively, the depth of the insertion groove (10a) is a gap between the lower surface and the concrete slab (1). Insulating structure (10) made of expanded polystyrene material lower than the height of the dustproof material (11) to form (c), and includes a finishing mortar (13) for coupling with the upper portion of the insulating structure (10). In FIG. 7, the heating pipe disposed inside the finishing mortar 13 is omitted.

The bottom impact sound insulation structure of the present invention is different from the sound insulation structure of Figure 3 is the plate-shaped polyurethane filter foam 16 is disposed between the upper surface of the concrete slab 1 and the lower surface of the plurality of dustproof material 11 Is that it is.

The polyurethane filter foam 16 is 64 wt% of polyether polypropylene glycol, 7 wt% of polyether copolymer polyol, 26.1 wt% of toluene diisocynate, and first 0.5 wt% of the active agent Organic Stanneus Octoate, 0,4 wt% of the tertiary Amine / Glycol Mixtuer as the second active agent and N, N-dimethyl amino ethanol (N, N-Dimethyl Amino Ethanol) 0.8 wt%, silicone surfactant polyalkylene Oxidemethyl Siloxane Copolymer (0.2 wt%) and color paste (color paste) of 1 wt% of the components.

The polyurethane filter foam 16 uses those having physical properties as shown in Table 1 below.

Metric unit Property How to measure density Kg / ㎥ 32 ± 3 JIS-K-6401 Light (I.L.D 25%) Kg / 314㎠ 25.34 〃 The tensile strength Kg / ㎠ 1.453 JIS-K-6301 Elongation rate % 121.42 〃 Tear strength Kg / cm 1150 〃 Shout % 35 JIS-K-6401

Polyurethane filter foam 16 is produced in a plate shape, the most preferred thickness was 10mm test results.

The insulating structure 10 is prepared by adding a foaming agent such as pentane or butane to the polystyrene resin as foamed polystyrene, heat curing and generating bubbles by forming a foamed resin and polymerizing a styrene monomer.

The dustproof material 11 is a polyurethane composition, 20 to 30% by weight of dioctyl phthalate (DOP) as a plasticizer, 3 to 5% by weight of methyl ethyl ketone as a solvent, and an average particle diameter in the range of 5 to 10 μm. A first composition comprising a conventional polyurethane prepolymer having 10 to 20% by weight of calcium and a residual amount of free NCO groups of 5 to 10%; A second composition comprising calcium carbonate having an average particle diameter in the range of 30 to 40% by weight of dioctylphthalate, 5 to 10% by weight of ethylene oxide, 10 to 20% by weight of water, and 5 to 10 µm as the amount of plasticizer; The mixing ratio is used so that the mixing ratio of the first composition: second composition is 1: 1: 2.5 to 3.5 by weight.

The dustproof material 11 has the physical properties as shown in the following Table 2, and the size is 50mm x 50mm x 40mm.

division value unit Test standard Remarks density 150 ㎏ / ㎥ KSM3014 Static modulus 0.003-0.008 N / mm2 DIN 53513 Dynamic modulus 0.018-0.036 N / mm2 DIN 53513 Related to load and frequency Permanent compression shrinkage 3.6 % KSM3016 The tensile strength 2 ㎏ / ㎠ KSM3014 at least Elongation 300 % KSM3014 at least Electrical resistivity 10 ¹⁵ ㎝cm DIN 53482 Dry material Thermal conductivity 0.05 ㎉ / (mh ℃) JIS1420 Flame Retardant Grade B2 DIN 4102 Standard flame retardant

The floor impact sound insulation structure of the multi-unit house according to the present invention blocks the heavy impact sound because the plate-shaped polyurethane filter foam 16 having the optimal physical properties blocking the heavy impact sound is formed between the concrete slab 1 and the dustproof material 11. The effect is better.

Example 1

The bottom impact sound structure shown in FIG. 7 was constructed as follows, and a light impact test and a weight impact test were performed.

The thickness of the concrete slab (1) is 180mm, the insulating structure 10 was used as the size of 1000mm × 1000mm × 40mm having the dimensions shown in Figs. 8 and 9, the dustproof material 11 is shown in Table 2 Physical properties of 50mm × 50mm × 40mm with a static modulus of 0.011 and a dynamic modulus of 0.048 were used. And the thickness of the finishing mortar 13 is 50mm.

In addition, the polyurethane filter foam 16 of the present invention had a thickness of 10 mm and had a physical property of Table 1 described above, but used a density of 31.72.

For such a floor structure, the inverse A characteristic lightweight floor impact sound level and the inverse A characteristic heavy impact sound level were determined by the test method using the standard light impact source of KSF 2810-1 and the test method using the standard weight impact source of KSF 2810-2. Each was measured.

The measurement results of the inverse A characteristic lightweight floor impact sound level are shown in the table of FIG. 10 and the graph of FIG. 12A. As can be seen from the table, in this case, the inverse A characteristic weight normalized bottom impact sound level (L'n, AW) was 46, which showed a good second-class sound insulation effect.

The measurement result of the inverse A characteristic weight floor impact sound level is shown by the table of FIG. 11 and the graph of FIG. 12B. As can be seen from the table, the inverse A characteristic weighted floor impact sound level (L'n, Fmax, AW) was 39, which showed a very good first-class sound insulation effect.

Comparative Example 1

Except for removing the polyurethane filter foam (16) compared to Example 1 described above was carried out in the same manner as in Example 1 to perform a light impact test and a weight impact test.

The measurement results of the inverse A characteristic lightweight floor impact sound level are shown in the table of FIG. 10 and the graph of FIG. 13A. As can be seen from the table, the inverse A characteristic weighted normalized bottom impact sound level (L'n, AW) was 46, which showed a second-class sound insulation effect similar to that of Example 1.

The measurement result of the inverse A characteristic weight floor impact sound level is shown by the table of FIG. 11 and the graph of FIG. 13B. As can be seen from the table, the inverse A characteristic weighted floor impact sound level (L'n, Fmax, AW) was 43, which showed a second-class sound insulation effect lower than that of Example 1.

Comparative Example 2

Except having made the thickness of the polyurethane filter foam 16 into 5 mm compared with Example 1 mentioned above, the lightweight impact test and the weight impact test were implemented similarly to the conditions of Example 1.

The measurement results of the inverse A characteristic lightweight floor impact sound level are shown in the table of FIG. 10 and the graph of FIG. 14A. As can be seen from the table, the inverse A characteristic weighted normalized bottom impact sound level (L'n, AW) was 46, which showed a second-class sound insulation effect similar to that of Example 1.

The measurement result of the inverse A characteristic weight floor impact sound level is shown by the table of FIG. 11 and the graph of FIG. 14B. As can be seen from the table, the inverse A characteristic weighted floor impact sound level (L'n, Fmax, AW) was 44, which showed a lower level 3 sound insulation effect than Example 1.

Comparative Example 3

Except having made the thickness of the polyurethane filter foam 16 into 8 mm compared with Example 1 mentioned above, the lightweight impact test and the weight impact test were implemented similarly to the conditions of Example 1.

The measurement results of the inverse A characteristic lightweight floor impact sound level are shown in the table of FIG. 10 and the graph of FIG. 15A. As can be seen from the table, the inverse A characteristic weighted normalized bottom impact sound level (L'n, AW) was 45, which showed a second-class sound insulation effect similar to that of Example 1.

The measurement results of the inverse A characteristic weight floor impact sound level are shown in the table of FIG. 11 and the graph of FIG. 15B. As can be seen from the table, the inverse A characteristic weighted floor impact sound level (L'n, Fmax, AW) was 42, which showed a second-class sound insulation effect lower than that of Example 1.

In Example 1 and Comparative Examples 1, 2 and 3, the inverse A characteristic light weight floor impact sound level is similar in all the examples and comparative examples, but the inverse A characteristic weight floor impact sound level is 10 mm polyurethane on the upper surface of the concrete slab 1. Example 1 in which the filter foam 16 is arranged is compared with Comparative Example 1 in which the polyurethane filter foam 16 is not conventionally arranged, and Comparative Examples 2 and 3 in which polyurethane filter foams having a different thickness are arranged. It can be seen that the excellent sound insulation effect.

According to the present invention provides a comfortable living environment by greatly improving the blocking effect of the floor shock sound of the heavy shock sound that generates a lot of low-frequency components, such as adult walking, children skipping.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

As described above, according to the present invention, the floor shock sound, especially the heavy shock sound, which occurs in the upper floor in the multi-family house, is more completely blocked, thereby providing a pleasant living environment.

Claims (2)

Concrete slab (1) comprising a reinforcing bar, a plurality of dustproof material 11 is arranged at a predetermined interval from side to side on the upper portion of the concrete slab, the plurality of dustproof material 11 is inserted into the lower surface respectively ( 10a is formed and the depth of the insertion groove 10a is lower than the height of the dustproof material 11 so that the clearance (c) is formed between the concrete slab 1 and the insulating structure of the foam polystyrene 10 In addition, in the floor impact sound insulation structure of a multi-family house comprising a finishing mortar (13) coupled to the upper portion of the heat insulating structure (10), Between the upper surface of the concrete slab 1 and the lower surface of the plurality of dustproof materials 11, the density 31.72 Kg / ㎥, hardness (I.L.D 25%) 25.34 Kg / 314 ㎠, tensile strength 1.453 Kg / ㎠. The floor impact sound insulation structure of a multi-family house, characterized by disposing a 10 mm thick plate-shaped polyurethane filter foam (16) having an elongation of 121.42%, tear strength of 1.150 Kg / cm, and an elasticity of 35%. The polyurethane filter foam according to claim 1, wherein the polyurethane filter foam 16 is 64 wt% of polyether polypropylene glycol, 7 wt% of polyether copolymer polyol, 26.1 wt% of toluene diisocyanate, and an organic stainless steel octoate as the first active agent. 0.5 wt%, 0,4 wt% of the second amine / glycol mixture and 0.8 wt% of N, N-dimethyl amino ethanol, 0.2 wt% of the polyalkylene oxydimethyl siloxane copolymer of silicone surfactant, and color paste Soundproof structure of floor impact sound for apartment houses, characterized in that manufactured at 1 wt%.

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