KR102220426B1 - Construction method of interlayer sound insulation of building - Google Patents

Abstract

The present invention is a sound insulation structure and construction method between floors of a building for facilitating the construction work of inter-floor sound insulation materials while blocking inter-floor noise of a multi-storey building by improving absorption and exhaustion performance for noise and vibration generated by the impact applied from the upper floor. It is about.

Description

Construction method of interlayer sound insulation of building

The present invention relates to an interlayer sound insulation structure and a construction method of a building, and more particularly, to an interlayer sound insulation structure and a construction method of a building for efficiently absorbing interlayer noise and vibration generated by an impact applied from an upper floor.

In recent years, according to the rapid industrialization, many multi-storey buildings such as multi-family houses and apartments are being built, but disputes due to inter-floor noise caused by the improvement of living standards and densification of buildings are increasing.

In this regard, due to environmental and health problems caused by noise and vibration, the method of measuring and evaluating the floor impact sound blocking performance of multi-storey buildings, especially apartment houses, and the standards and noise standard values of the floor impact sound performance class are regulated by law.

The general multi-story building construction method is as follows.

First, foundation works such as earthwork or ground compaction are performed, and the skeleton structure of the building is formed using steel frames such as H-beam and I-beam on the ground. Specifically, a plurality of steel frames are installed in the vertical and horizontal directions, and then the steel frames are connected to each other by welding or brackets to form the skeleton structure of the building.

Next, between the vertically installed steel frames, a brick is organized or a formwork is installed to connect reinforcing bars inside, and then concrete is poured and cured to build a wall. In addition, a formwork is laid on the horizontally installed steel frame, reinforcing bars are connected on it, and then concrete is poured and cured to construct a slab.

In this way, if the concrete is poured and cured and the formwork is dismantled after a certain period of time, one floor is built. In addition, several floors are constructed by continuously repeating the installation of formwork, pouring concrete, and curing several times. A building constructed in this way has multiple floors divided by walls and slabs so that several generations can live, and at the same time, one floor is divided into several living spaces.

The noise level is generally expressed in decibels (dB), and the level of noise that must be observed is determined according to the environment. In the case of noise exceeding this, sound-absorbing materials or sound-insulating materials should be used to create a pleasant environment, and standards suggested in laws and regulations should be observed.

Among the legal standards for interlayer sound insulation, lightweight impact sound means floor impact sound caused by a relatively light and hard impact, and the legal standard is 58 dB or less, while weight impact sound means floor impact sound caused by heavy and soft impact, and legal standard is 50 dB or less. Has been.

In the case of a multi-story building, since many people live together, it is very important to block the noise and vibration of the floor space (upper and lower floors) when constructing the slab floor.

When a shock from the upper floor is specifically applied to the lower floor, such as a person's walking, falling objects, and particularly a shock due to severe vibration of children, the floor structure such as the floor slab, ceiling, or wall vibrates, generating a floor impact sound. The generated sound is transmitted to various locations and vibrates the surface of the structure, causing severe damage to the occupants of the lower floors like the air sound directly radiated.

Therefore, the construction of a cushioning material for shock absorption and a sound insulation structure to exhaust noise is essential in the construction of the floor of a building.

However, there is a problem in that the sound insulation structure between floors of a conventional building has insufficient effect of absorbing noise and vibration generated between floors, and thus does not effectively block noise and vibration applied from an upper floor. Accordingly, tenants living in the lower floors are severely damaged by noise and vibration.

Korean Patent Publication No. 10-2005-0051998

The present invention is to solve the above problems, and the object of the present invention is to improve the absorption and exhaustion performance against noise and vibration, thereby blocking the inter-floor noise of a multi-storey building, and to facilitate the construction of a sound insulation structure It is to provide a sound insulation structure and construction method.

In order to achieve the object of the present invention, the interlayer sound insulation structure of a building according to the present invention includes a partition layer; And a lower sound insulation layer provided in close contact with the partition layer so as to contact the partition layer, and an upper sound insulation layer disposed on the lower sound insulation layer while receiving the lower sound insulation layer above the lower sound insulation layer, and the A sound insulation layer installed on the partition layer; A foam layer disposed on the sound insulation layer; A mortar layer disposed on the foam layer; A separating layer in which the sound insulation layer, the foam layer, and the mortar layer are spaced apart from the wall to form a space; And a side layer installed on the separation layer.

In order to achieve the object of the present invention, the construction method of the interlayer sound insulation structure of a building according to the present invention comprises: a partition layer construction step of constructing a partition layer by pouring and curing concrete; A sound insulation layer construction step of installing a sound insulation layer having a first space portion and a second space portion on the partition layer; And a mortar layer construction step of constructing a mortar layer on which a heating pipe of a building is installed on the sound insulation layer.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, after the partition layer construction step, a protruding portion or a recessed portion on the upper portion of the partition layer is checked, and the upper portion of the partition layer It may further include a; preparation step of checking the piping condition.

In addition, in another preferred embodiment of the construction method of the sound insulation structure between floors of a building according to the present invention, after the preparation step, the construction direction of the sound insulation layer is determined according to the direction and number of pipes confirmed as a result of checking the pipe condition. Construction direction determination step; may further include,

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, after the construction direction determining step, a side layer construction step of installing a side layer in a portion where a separation layer, which is a wall part of the building, is formed. It may further include;

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, in the sound insulation layer construction step, the sound insulation layer is a lower sound insulation layer that is closely installed on the upper portion of the partition layer so as to contact the partition layer. And an upper sound insulating layer disposed on the lower sound insulating layer while receiving the lower sound insulating layer above the lower sound insulating layer.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, the lower sound insulation layer is provided with the upper sound insulation layer so that the upper sound insulation layer is accommodated in the upper sound insulation layer after the side layer construction step. A bonding step of combining the upper sound insulating layer and the lower sound insulating layer by inserting a layer; may further include.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, taping to seal the gap spaced apart between the upper sound insulation layer and the lower sound insulation layer joined after the sound insulation layer construction step with tape Step; may further include.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, in the case of pouring the foam layer after the taping step or the foam layer without pouring the foam layer, the foam layer It may further include a; bubble layer construction step to cure.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, in the sound insulation layer construction step, the upper sound insulation layer is formed of expanded polypropylene, and the lower sound insulation layer is formed of expanded polystyrene. I can.

In addition, in another preferred embodiment of the construction method of the interlayer sound insulation structure of a building according to the present invention, the expansion ratio of the expanded polypropylene may be formed to be 15 times or more to 80 times or less.

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The interlayer sound insulation structure of a building according to the present invention has a sound insulation layer formed of a double layer of an upper sound insulation layer and a lower sound insulation layer, and a first space part is formed in the upper sound insulation layer, and a second space part is formed in the lower sound insulation layer. The generated noise and vibration are primarily exhausted in the first space, and the remaining noise and vibration are also secondarily exhausted in the second space, thereby effectively blocking inter-floor noise of the multi-story building.

In addition, the construction method of the interlayer sound insulation structure of a building according to the present invention is formed of a double layer of the upper sound insulation layer and the lower sound insulation layer, and the material of the upper sound insulation layer and/or the lower sound insulation layer is combined with expanded polypropylene and/or expanded polystyrene. As a result, the sound insulation effect can be improved and the cost of the sound insulation structure can be reduced.

Moreover, the construction method of the interlayer sound insulation structure of a building according to the present invention is formed of an upper sound insulation layer and a lower sound insulation layer in order to increase the sound insulation effect, and the lower sound insulation layer is inserted into the upper sound insulation layer, and thus the combination step is provided. In the construction process of the sound insulation structure, it is possible to construct the sound insulation layer once, so that the ease of construction work of the sound insulation structure can be improved.

1 shows a cross-sectional view of a sound insulation structure between floors of a building according to an embodiment of the present invention.
2 is a cross-sectional view of a sound insulation structure between floors of a building according to an embodiment of the present invention.
3 is a cross-sectional view of a sound insulation layer of an interlayer sound insulation structure of a building according to an embodiment of the present invention.
4 is a perspective view of a lower sound insulation layer of an interlayer sound insulation structure of a building according to an embodiment of the present invention.
5 is a perspective view of an upper sound insulation layer of an interlayer sound insulation structure of a building according to an embodiment of the present invention.
6 is a perspective view of a sound insulation layer of a sound insulation structure between floors of a building according to an embodiment of the present invention.
7 is a cross-sectional view taken along AA of FIG. 5.
8 is a cross-sectional view taken along the CC portion of FIG. 5.
9 is a graph showing the results of the sound insulation test.
10 is a graph showing the results of the sound insulation test.
11 is a graph showing the results of the sound insulation test.
12 is a graph showing the results of the sound insulation test.
13 is a graph showing the results of the sound insulation test.
14 is a cross-sectional view of a sound insulation structure between floors of a building according to another embodiment of the present invention.
15 is a cross-sectional view of a sound insulation structure between floors of a building according to another embodiment of the present invention.
16 shows a procedure diagram of a construction method of a sound insulation structure between floors of a building according to an embodiment of the present invention.

Hereinafter, with reference to the drawings of the interlayer sound insulation structure and construction method of a building according to an embodiment of the present invention will be described in detail. The following embodiments are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. In addition, in the drawings, the size and thickness of the device may be exaggerated for convenience. Throughout the specification, the same reference numbers indicate the same elements.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments are intended to complete the disclosure of the present invention, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person of the scope of the invention, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity of description.

The terms used in this specification are for describing exemplary embodiments, and therefore, are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements, and/or elements, steps, actions and/or elements mentioned. Or does not exclude additions.

1 is a cross-sectional view of a sound insulation structure between floors of a building according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a sound insulation structure between floors of a building according to an embodiment of the present invention.

3 is a cross-sectional view of a sound insulation layer of an inter-floor sound insulation structure of a building according to an embodiment of the present invention, and FIG. 4 is a perspective view of a lower sound insulation layer of the interstory sound insulation structure of a building according to an embodiment of the present invention.

5 is a perspective view of an upper sound insulation layer of an inter-floor sound insulation structure of a building according to an embodiment of the present invention, and FIG. 6 is a perspective view of a sound insulation layer of an inter-floor sound insulation structure of a building according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view of a portion A-A of FIG. 5, and FIG. 8 is a cross-sectional view of a portion C-C of FIG. 5.

9 is a graph showing the results of the sound insulation test, and FIG. 10 is a graph showing the results of the sound insulation test.

11 is a graph showing the results of the sound insulation test, and FIG. 12 is a graph showing the results of the sound insulation test.

13 is a graph showing a result of a sound insulation test, and FIG. 14 is a cross-sectional view of a sound insulation structure between floors of a building according to another embodiment of the present invention.

15 is a cross-sectional view of a sound insulation structure between floors of a building according to another embodiment of the present invention, and FIG. 16 is a flowchart illustrating a method of constructing a sound insulation structure between floors of a building according to an embodiment of the present invention.

The definitions of terms used below are as follows. "Horizontal direction" means the horizontal direction, that is, the X-axis direction in Figs. 4 to 6, and the "vertical direction" refers to the height direction while being orthogonal to the horizontal direction, that is, the Z-axis direction in Figs. 4 to 6, The "width direction" means a vertical direction while orthogonal to the horizontal direction and the vertical direction, that is, the Y-axis direction in FIGS. 4 to 6. In addition, the upper (upward) refers to an upward direction in the "vertical direction", that is, a direction toward the upper side of the Z axis in FIGS. 4 to 6, and the lower (downward) refers to a downward direction from the "vertical direction", that is, FIGS. 4 to 6 It means the direction from 6 to the bottom of the Z axis.

An interlayer sound insulation structure 1 of a building according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 12. As shown in FIGS. 1 and 2, the interlayer sound insulation structure 1 of a building according to an embodiment of the present invention includes a partition layer 40, a sound insulation layer 30, and a foam layer 20. It includes a mortar layer (10).

The partition layer 40 serves to divide the upper and lower floors of the building. In addition, the partition layer 40 serves to provide a surface on which the sound insulation layer 30, the foam layer 20, and the mortar layer 10 can be arranged or installed on the partition layer 40. .

Although not necessarily limited thereto, the partition layer 40 may be specifically made of a concrete slab.

The foam layer 20 is installed on the sound insulation layer. Although not necessarily limited thereto, the foam layer 20 may be made of lightweight foam concrete. If lightweight foamed concrete is used, it will not burn in the event of a fire in the building, thus enhancing the safety of the building, while improving the strength and reducing the weight. In addition, the foam layer 20 may be reduced or eliminated according to a ratio in which the thickness of the sound insulation layer is increased.

The mortar layer 10 serves to provide a space in which a heating pipe of a building can be installed, and is formed on the foam layer 20. Although not necessarily limited thereto, the mortar layer 10 may be made of a cement mortar (a mixture of cement and water) or a concrete mortar (a mixture of sekent, sand, and water).

The sound insulation layer 30 serves to block noise from the upper floors of the building from being transmitted to the lower floors. In addition, the sound insulation layer 30 is installed on the partition layer 40.

The sound insulating layer 30 includes an upper sound insulating layer 31 and a lower sound insulating layer 32.

The lower sound insulation layer 32 constitutes the lower part of the sound insulation layer 30 and is installed on the partition layer 40.

The upper sound insulating layer 31 constitutes an upper portion of the sound insulating layer 30 and is installed to accommodate the lower sound insulating layer 32 above the lower sound insulating layer 32.

The sound insulation layer 30 has a double structure formed of the upper sound insulation layer 31 and the lower sound insulation layer 32. This double structure effectively prevents the transmission of noise generated from the upper floors of the building to the lower floors. Can be blocked.

The upper sound insulating layer 31 of the sound insulating layer 30 of the interlayer sound insulating material 1 of a building according to a preferred embodiment of the present invention is formed of expanded polystyrene (EPS), and the lower sound insulating layer 32 is foamed polystyrene. It may be formed of propylene (expanded polypropylene. EPP).

In addition, the upper sound insulating layer 31 of the sound insulating layer 30 of the interlayer sound insulating material 1 of a building according to a preferred embodiment of the present invention is formed of expanded polypropylene (EPP), and the lower sound insulating layer 32 is formed. Silver may be formed of expanded polystyrene (EPS).

Expanded polypropylene (EPP) is a high-tech material used for automobile parts, packaging materials, construction materials, insulation materials, etc. It is suitable for enhancing the stability of product packaging and miniaturizing the volume due to its excellent breakability, flexibility and chemical resistance.

Expanded polystyrene (EPS) is a material used for building materials such as cushioning, heat insulation, and sound absorption.

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As shown in FIGS. 1 and 2, the interlayer sound insulating material 1 of a building according to an embodiment of the present invention includes a separation layer 50 and a side layer 60.

The separation layer 50 refers to a space formed as the sound insulation layer 30, the foam layer 20, and the mortar layer 10 installed adjacent to the wall of the building are installed to be spaced apart from the wall 70.

Noise and vibration generated by the impact applied from the upper layer are primarily exhausted by the sound insulation layer 30, and then secondaryly exhausted by the spacing layer 50. In addition, since noise and vibration passing through the separation layer 50 are transmitted back to the upper layer, they can be effectively exhausted. Accordingly, according to the present invention, noise and vibration are effectively prevented from being transmitted to the lower layer, thereby providing excellent sound insulation and vibration insulation.

The side layer 60 is inserted into the separation layer 50, which is a space formed as the sound insulation layer 30, the foam layer 20, and the mortar layer 10 are installed to be spaced apart from the wall 70.

Although not necessarily limited thereto, the side layer 60 may be made of expanded polyethlene.

In addition, the side layer 60 may be formed in a double structure like the upper sound insulating layer 31 and the lower sound insulating layer 32 described above. That is, it is possible to form a double structure of an outer portion of the side layer 60 that is a portion close to the wall 70 and an inner portion of the side layer 60 that is a portion close to the sound insulation layer 30.

In addition, the outer portion of the side layer 60 formed in a double structure may be formed of expanded polystyrene (EPS), and the inner portion may be formed of expanded polypropylene (EPS).

In addition, the outer portion of the side layer 60 formed in a double structure may be formed of expanded polypropylene (EPS), and the inner portion may be formed of expanded polystyrene (EPS).

Foamed polystyrene and expanded polypropylene forming the upper sound insulating layer 31 or the lower sound insulating layer 32 may be formed such that the expansion ratio is 15 to 80 times.

Foaming magnification is a measure to check how many times the foaming has occurred compared to before foaming. For example, a foaming ratio of 40 times means that it has been foamed at 40 times compared to before foaming.

Referring to Figure 1 looks at the stacking sequence of the interlayer sound insulation material 1 of a building according to a preferred embodiment of the present invention.

First, the layer of the building is formed by the partition layer 40 that divides the upper and lower layers of the building and the wall of the building by the wall 70.

The side layer 60 is installed in the portion where the separation layer 50 formed on the wall 70 is located.

A sound insulating layer 30 in which the lower sound insulating layer 32 and the upper sound insulating layer 31 are combined is stacked on the partition layer 40 to block noise or vibration generated from the upper layer from being transmitted to the lower layer.

A foam layer 20 is laminated on the top of the sound insulation layer 30 to reduce the load of the building itself, prevent fire of the building, and prevent noise or vibration generated from the upper floor through the foam layer from being transmitted to the lower floor. It can be prevented to some extent.

A mortar layer 10 may be stacked on the foam layer 20 and a heating pipe for a building may be installed on the mortar layer 10.

Referring to FIG. 1, the height of the partition layer 40 (H1), the height of the lower sound insulation layer 32 (H2), the height of the upper sound insulation layer 31 (H3), the height of the foam layer 20 (H4) ) And the height H5 of the mortar layer 10 may be formed to be 4:3:2:2:2.

If the height ratio of the above five floors is formed to be 4:3:2:2:2, the sound insulation effect that blocks noise or vibration generated from the upper floor from being transmitted to the lower floor is high, while reducing the load of the building. It is possible to reduce the cost required for reinforcement facilities to reinforce the load of the building, and at the same time, it is possible to secure the stability of the building by maintaining the rigidity of the building.

Referring to FIG. 5, the upper sound insulating layer 31 includes a body part 311, a partition wall part 317, and an insertion space 318.

The body part 311 has a certain width and length and forms the outer shape of the upper sound insulating layer 31.

The partition wall portion 317 is formed to extend downward along the circumference of the body portion 311.

The insertion space 318 refers to a space formed by the body part 311 and the partition wall part 317. That is, a space enclosed by the partition wall part 311 is formed under the body part 311 to provide a space for accommodating the lower sound insulation layer 32.

Referring to FIG. 4, the lower sound insulation layer 32 includes a base portion 321 and a rib portion 322 is formed in the base portion 321.

The base part 321 has a certain width and length and forms the outer shape of the lower sound insulation layer 32. In addition, the base portion 321 is inserted and installed in the insertion space 318 of the upper sound insulation layer 31.

That is, the base portion 321 of the lower sound insulation layer 32 is inserted and installed in the insertion space 318 of the upper sound insulation layer 31. Accordingly, it is formed in a dual structure to increase the sound insulation effect of the sound insulation layer 30, and by inserting the lower sound insulation layer into the upper sound insulation layer, the construction work can be performed as if installing one sound insulation layer, so that the construction work is convenient. It can increase and reduce construction time to reduce construction costs including labor costs.

The rib portion 322 may be formed in plural, and each rib portion 322 is formed in series so as to be spaced apart from each other in the horizontal direction.

In addition, each rib portion 322 is formed to protrude from the lower portion of the base portion 321, and each rib portion 322 formed to protrude extends along the width direction so that the width direction of the lower sound insulation layer 32 It is formed to almost match the length of.

Referring to FIG. 5, the body part 311 of the upper sound insulating layer 31 includes a vertical groove part 312, a garrog groove part 313, a cross groove part 314, and a grid part 315.

The vertical groove portion 312 may be formed in plural, and each vertical groove portion 312 is formed to be spaced apart from each other in the horizontal direction of the body portion 311.

In addition, each vertical groove portion 312 is formed to be concave below the body portion 311, and each of the vertical groove portions 312 formed to be concave is formed extending along the width direction of the body portion 311 It is formed to substantially match the length of the upper sound insulation layer in the width direction.

The garrog groove part 313 may be formed in plural, and each garrog groove part 313 is formed to be spaced apart from each other in the width direction of the body part 311.

In addition, each of the gargorous grooves 313 is formed to be concave below the body portion 311, and each of the gargosed grooves 313 are formed to extend along the horizontal direction of the body portion 311 It is formed to substantially match the length of the upper sound insulation layer in the horizontal direction.

The cross groove portion 314 may be formed in plural, and each cross groove portion 314 is

Each vertical groove portion 312 and each garrog groove portion 313 are formed at orthogonal portions, and each cross groove portion 314 is formed to be concave under the body portion 311.

A plurality of lattice portions 315 may be formed, and the lattice portion 31 includes the vertical groove portion 312, the garroga groove portion 313, and the cross groove portion 314, except for the portion where the cross groove portion 314 is formed. It is formed to be convex under the body portion 311.

4 and 6, the upper sound insulation layer 31 further includes a first space part 316, and the lower sound insulation layer 32 further includes a second space part 323.

The first space part 316 and the second space part 323 provide a space for forming an air layer to prevent noise or vibration generated from the upper layer from being directly transmitted to the lower layer, and first, the upper sound insulation layer 31 Noise or vibration remaining after blocking noise or vibration through the air layer formed in the first space formed in the lower sound insulation layer 32 is double-blocked to be exhausted again through the air layer formed in the second space formed in the lower sound insulation layer 32 It plays a role of improving the sound insulation effect of the layer 30.

The first space part 316 is a space formed under the body part 311, and defines a space formed by the vertical groove part 312, the garrog groove part 313, and the cross groove part 314. it means.

The second space part 323 is a space formed under the base part 321 and refers to a space formed between a plurality of rib parts protruding under the base part 321.

7 and 8, the ratio of the horizontal length D1 of the vertical groove portion 312 and the vertical length D2 of the vertical groove portion 312 in the upper sound insulation layer 31 is 10:1. It can be formed to be. In addition, the ratio of the length D4 in the width direction of the garrove portion 313 and the length D5 in the vertical direction of the garrove portion 313 may be 10:1.

In addition, a ratio of the horizontal length D1 of the vertical groove portion 312 and the horizontal length D3 of the grid portion 315 may be 1:10. In addition, the ratio of the length D4 in the width direction of the garroga groove portion 313 and the length D6 in the width direction of the grid portion 315 may be 1:10.

When the ratio is configured as described above, the grid portion 315 and the first space portion 316 are formed under the body portion 311 while forming a constant pattern.

In addition, although not necessarily limited thereto, the body part 311 of the upper sound insulating layer 31 includes a vertical groove part 312, a garrog groove part 313, and a cross groove part 314 under the body part 311 It is formed concave in the height to form a valley can be formed to match all.

Through this, the protruding height of the grid portion 315 that protrudes from the lower portion of the body portion 311 can be made uniform, and the vertical groove portion 312, the garg groove portion 313 and the cross groove portion 314 are formed. The first space portion 316 may be uniformly formed in a predetermined ratio of space. Accordingly, the first space part 316 may be formed evenly and uniformly under the body part 311.

Referring to FIG. 3, the ratio of the horizontal length L1 of the second space part 323 and the vertical length L2 of the second space part 323 in the lower sound insulation layer 32 is 1:10. It can be formed to be. In addition, the ratio of the horizontal length L1 of the second space portion 323 and the horizontal length L3 of the rib portion 322 may be 1:2.,

When the ratio is configured as described above, the rib portion 322 and the second space portion 323 are formed in a certain pattern under the base portion 321.

In addition, although not necessarily limited thereto, the base portion 321 of the hibu sound insulation layer 32 has a plurality of rib portions 322 convexly formed under the base portion 321 so that the protruding heights formed to protrude are all It can be formed to match.

Through this, the protruding height of the rib portion 322 protruding from the lower portion of the base portion 321 can be uniform, and the second space portion 323 formed by the plurality of rib portions 322 is a space of a certain ratio It can be formed uniformly. Accordingly, the second space portion 323 may be formed evenly and uniformly under the base portion 321 as a whole.

That is, when formed in the above-described ratio, the upper sound insulating layer 31 forms a first space part uniformly distributed overall under the body part 311, and the lower sound insulating layer 32 is the base part 321 A second space portion 323 that is uniformly distributed throughout is formed under the.

Accordingly, the first space part 316 that forms an air layer to exhaust noise or vibration generated from the upper layer can be formed evenly and uniformly over the entire upper sound insulation layer 31, so that the first space part 316 It is possible to consistently maintain the degree of sound insulation of noise or vibration that is sound-insulated, and to uniformly transmit the load transmitted to the first space 316 by a bubble layer or mortar layer loaded on the top of the first space 316 As a result, it is possible to prevent the first space 316 from being damaged by the load and the air layer formed in the first space 316 from being destroyed. In the same manner, the second space 323 is uniformly formed overall on the lower sound insulation layer 32, thereby exerting the same effect as the effect of the first space being uniformly formed throughout the upper sound insulation layer.

In addition, as formed in the above-described ratio, a plurality of vertical groove portions, a plurality of garrog groove portions, a plurality of cross groove portions, a plurality of grid portions, and a plurality of vertical groove portions respectively formed in the upper sound insulating layer 31 and the lower sound insulating layer 32, and By minimizing the number of ribs, it prevents damage after installation by maintaining the rigidity of the upper and lower sound insulation layers, as well as preventing damage or damage to the sound insulation layer during transport or installation of the sound insulation layer, thereby reducing costs. As it is formed evenly, it is possible to reduce manufacturing cost by mass production through a mold.

In addition, since it is uniformly formed in the above-described ratio, the amplitude of sound waves generated in the upper layer by various grooves is reduced, and the amplification of sound waves that may be generated by overlapping is prevented, thereby further improving sound insulation performance.

With reference to Figs. 9 to 13, the material and foaming ratio of the interlayer sound insulation structure 1 of a building according to a preferred embodiment of the present invention, and a sound insulation effect (sound insulation performance) according to this will be described.

In FIGS. 9 to 13, the X-axis represents the frequency range (hertz, Hz), and the Y-axis represents the sound insulation rate (%). The sound insulation rate refers to the subtraction rate of sound waves when sound waves pass through a zero base (a sound insulation material is not installed) and when a sound insulation material is installed. That is, in FIGS. 9 to 11, the higher the sound insulation rate of the Y-axis is, the higher the sound insulation effect (sound insulation performance) is.

In addition, the sound insulation performance in FIGS. 9 to 13 represents the sound insulation effect in a state having a sound insulation coefficient at a corresponding frequency (X-axis), and the area of the lower part of each coordinate shown in the graphs of FIGS. 9 to 13 is measured by the trapezoidal method. It means the calculated area.

That is, in the graphs of Figs. 9 to 13, the wider the width of the lower part of each graph is, the better the sound insulation performance is. In addition, 125~500Hz means a low range and 500~2000Hz means a high frequency range.

In Figure 9, the line connected by a hollow point in white is formed of a single-layer sound insulation layer, the sound insulation layer 30 of the present invention is not composed of the upper sound insulation layer 31 and the lower sound insulation layer 32, expanded polystyrene. It is formed by (EPS), and the foaming ratio is 40 times, indicating the measurement result. In addition, the line connected by dots filled in black in FIG. 9 is that the sound insulation layer 30 of the present invention is composed of an upper sound insulation layer 31 and a lower sound insulation layer 32, and the upper sound insulation layer 31 is foamed. It is formed of polypropylene (EPP), the lower sound insulating layer 32 is formed of expanded polystyrene (EPS), and both the upper sound insulating layer and the lower sound insulating layer have a foaming magnification of 40 times, and the measurement results are shown.

Type and magnification Sound insulation performance from 125 to 500 Hz Sound insulation performance at 500~2000Hz EPS 40 times 8,921 35,271 EPP 40 times + EPS 40 times 13,259 61,524

As shown in Fig. 9 and Table 1, the upper sound insulation layer is made of EPP having a foaming ratio of 40 times than that of forming a sound insulation layer with a single layer of EPS having a foaming ratio of 40 times in both the low and high frequency ranges. It can be seen that the sound insulation performance is higher when the lower sound insulation layer is formed with EPS having a foaming ratio of 40 times.

In FIG. 10, a line connected by a hollow point in white indicates that the sound insulation layer 30 of the present invention is composed of an upper sound insulation layer and a lower sound insulation layer, the upper sound insulation layer is formed of expanded polypropylene (EPP), and the lower sound insulation layer is It is formed of expanded polystyrene (EPS), and the result of the measurement is shown in a state in which both the upper and lower sound insulation layers have a foaming ratio of 40 times. In addition, the line connected by dots filled in black in FIG. 10 is that the sound insulation layer 30 of the present invention is composed of an upper sound insulation layer and a lower sound insulation layer, the upper sound insulation layer is formed of expanded polystyrene (EPS), and the lower The sound insulation layer is formed of expanded polypropylene (EPP), and the foaming ratios of the upper and lower sound insulation layers are both formed at 40 times the measurement result.

Type and magnification Sound insulation performance from 125 to 500 Hz Sound insulation performance at 500~2000Hz EPP 40 times + EPS 40 times 13,559 61,459 EPS40x+EPP40x 11,405 50,671

As shown in Fig. 10 and Table 2, the upper sound insulation layer is formed of expanded polypropylene (EPP) having a foaming magnification of 40 times, and the lower sound insulation layer is formed of 40 times the foaming ratio in both the low and high frequency ranges. It can be seen that the sound insulation performance is higher when formed of expanded polystyrene (EPS) having a magnification.

In FIG. 11, the line connected by a hollow point in white is that the sound insulation layer 30 of the present invention is not composed of an upper sound insulation layer and a lower sound insulation layer, but is formed as a single-layer sound insulation layer, and is formed of expanded polypropylene (EPP). The expansion ratio is 40 times, which means the measurement result. In addition, the line connected by dots filled in black in FIG. 11 is that the sound insulation layer 30 of the present invention is formed as a single sound insulation layer, not consisting of an upper sound insulation layer and a lower sound insulation layer, and foamed polyprefillene ( EPP), and the foaming magnification refers to the result of measuring 60 times.

Type and magnification Sound insulation performance from 125 to 500 Hz Sound insulation performance at 500~2000Hz EPP 40 times 10,960 48,661 EPP60 times 9,254 45,682

As shown in Fig. 11 and Table 3, forming a sound insulation layer as a single layer with EPP having a foaming magnification of 40 times in both the low and high frequency ranges is a single-layered sound insulation layer with EPP having a foaming magnification of 60 times. It can be seen that the sound insulation performance is higher than that of forming.

In FIG. 12, each line is formed of a single-layer sound-insulating part, not composed of an upper sound-insulating part and a lower sound-insulating part of the present invention, and expanded polypropylene (EPP), expanded polystyrene (EPS), and ethylene vinyl acetate copolymer (ethylene -vinyl acetate copolymer, EVA) has different expansion ratios.

Specifically, as shown in FIG. 12, the expansion ratio of expanded polypropylene (EPP) is 10 times that of expanded polypropylene (EPP), 20 times that of expanded polypropylene (EPP), and expanded polypropylene. The measurement results are shown when the expansion ratio of (EPP) is 40 times, that of expanded polypropylene (EPP) is 60 times, and that of expanded polypropylene (EPP) is 80 times, and expanded polystyrene (EPS) is the expansion rate. If this is 60 times, the measurement result is shown.

Type and magnification 125~500 Hz
Sound insulation performance 500~2000 Hz
Sound insulation performance 125~2000 Hz
Sound insulation performance EPP 10 times 9,643 30,181 38,824 EPP 20 times 9.480 36,989 42,469 EPP 40 times 9,375 40.746 49,867 EPP 60 times 8,005 40.998 47,203 80 times EPP 6,304 41,378 46,681 EPS 60x 7,764 38,427 40.191 EVA 4,350 36,565 40,915

As shown in Figure 12 and Table 4, it can be seen that the higher the magnification of expanded polypropylene (EPP), the higher the sound insulation performance in the high-pitched range, and the smaller the magnification of the expanded polypropylene (EPP), the higher the sound insulation performance in the low-frequency range appears. have.

If the magnification of expanded polypropylene (EPP) is 10 times among the sound insulation performance of the entire range (125~2000 Hz) including both the low and high range ranges, the sound insulation performance of the low range is high, but the sound insulation performance in the high range is relatively very high. It can be seen that the overall sound insulation performance is lower than that of 60 times the expansion ratio of expanded polystyrene (EPS).

In the case where the magnification of expanded polypropylene (EPP) is 20, 40, 60, and 80, respectively, except for the case where the magnification of expanded polypropylene (EPP) is 10 times, the difference between the low and high frequency ranges However, it can be seen that the sound insulation performance in the entire range (125~2000 Hz) is high.

That is, as can be seen from Table 4, when the magnification of expanded polypropylene (EPP) is less than 15 times, the sound insulation performance in the low range (125 ~ 500 Hz) is higher, but in the high range (500 ~ 2000 Hz) The sound insulation performance is very low, so vibration or noise in the high-frequency range can be transmitted to the lower layer, and as the sound insulation performance in the entire range (125-2000 Hz) decreases, it blocks noise or vibration generated in the upper floor. There is a problem that the sound insulation function cannot be exercised.

In addition, as can be seen from Table 4, when the magnification of expanded polypropylene (EPP) exceeds 80 times, the sound insulation performance in the low-pitched range (125 to 500 Hz) is significantly lower than the above case. A significant part of the noise or vibration in the low range can be transmitted to the lower floor, and finally, as the sound insulation performance in the entire range (125~2000 Hz) decreases, the sound insulation function to block the noise or vibration generated in the upper floor is properly demonstrated. A problem that cannot be done occurs.

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An inter-floor sound insulation structure 1 of a building according to another exemplary embodiment of the present invention will be described with reference to FIGS. 14 and 15.

As shown in FIGS. 14 and 15, the interlayer sound insulation structure 1 of a building according to another embodiment of the present invention includes a partition layer 40 and a sound insulation layer 30. It includes a mortar layer (10).

The partition layer 40 serves to partition the upper and lower layers of a building, and is the same as the partition layer 40 of an embodiment of the present invention.

The mortar layer 10 is installed to be vertically spaced apart from each other while facing the partition layer 40 so that the heating pipe of the building is installed, and is the same as the mortar layer 10 according to an embodiment of the present invention.

The sound insulation layer 30 is installed between the partition layer 40 and the mortar layer 10 to block the transmission of noise from the upper layer of the building to the lower layer.,

The sound insulating layer 30 includes a lower sound insulating layer 32 and an upper sound insulating layer 31, as in an embodiment of the present invention, and the lower sound insulating layer 32 is installed on the partition layer 40 , The upper sound insulating layer 31 is installed above the lower sound insulating layer 32 to accommodate the lower sound insulating layer 32. In addition, the double structure formed of the upper sound insulating layer and the lower sound insulating layer blocks the transmission of noise generated from the upper floors of the building to the lower floors.

Another embodiment of the present invention differs from the embodiment of the present invention in that it does not include a bubble layer, but is formed by increasing the heights of the upper sound insulating layer and the lower sound insulating layer.

14, the height H6 of the partition layer 40, the height H7 of the lower sound insulation layer 32, the height H8 of the upper sound insulation layer 31, and the height H9 of the mortar layer 10 ) Can be formed to be 4:3:3:2.

When the height ratio of the above four layers is formed to be 4:3:3:2:, the sound insulation effect of blocking the transmission of noise or residual dust generated from the upper layer to the lower layer can be formed to be high even without a bubble layer, By reducing the load of the building, it is possible to reduce the cost required for the reinforcement equipment to reinforce the load of the building, and at the same time, it is possible to secure the stability of the building by maintaining the rigidity of the building.

Referring to FIG. 15, the sound insulation layer 30 may be formed as a plurality of layers between the partition layer 40 and the mortar layer 10. Specifically, the lower sound insulating layer 32 is stacked on the partition layer 40, the upper sound insulating layer 31 is stacked on the lower sound insulating layer 32, and another sound insulating layer 31 is stacked on the upper sound insulating layer 31. A plurality of sound insulating layers 30 may be stacked by repeating the order in which the lower sound insulating layer 32 is stacked and the other upper sound insulating layer 31 is stacked again on top of the other lower sound insulating layer 32.

Accordingly, a plurality of first and second spaces provided in the sound insulation layer 30 are formed, so that noise or vibration generated by the impact applied from the upper layer is more efficiently blocked from being transmitted to the lower layer. It is possible to form an improved sound insulation material.

A method of constructing an interlayer structure of a building according to an embodiment of the present invention will be described with reference to FIG. 16. As shown in Fig. 16, the construction method of the interlayer structure of the preaxial material according to the embodiment of the present invention includes a partition layer construction step (S1), a sound insulation layer construction step (S6), and a mortar layer construction step (S9).

Concrete is poured and cured to construct a partition layer that divides the upper and lower layers of the building.

After the partition layer construction step (S1), a first space part formed in the upper sound insulation layer and a second space part formed in the lower sound insulation part are provided to effectively block the transmission of vibration or noise generated in the upper floor to the lower floor. A sound insulation layer is installed above the partition layer.

After the sound insulation layer construction step (S6), a mortar layer for constructing a mortar layer on which the heating pipe of the building is installed is constructed on the top of the sound insulation layer. It is desirable that the mortar layer meets the standard of compressive strength specified in Korean Industrial Standard KS LL 5220. In addition, the number of plastering finishes for applying mortar on the ondol floor can be made more than two times.

As described above, the construction method of the interlayer sound insulation structure of a building according to the present invention includes a sound insulation layer formed of a double layer of an upper sound insulation layer and a lower sound insulation layer, a first space part is formed in the upper sound insulation layer, and a second space part is in the lower sound insulation layer. As it is formed, the noise and vibration generated in the upper floors are primarily exhausted in the first space, and the remaining noise and vibrations are also secondarily exhausted in the second space, thus effectively blocking the inter-floor noise of the multi-storey building. have.

As shown in Figure 16, the construction method of the interlayer structure of a building according to an embodiment of the present invention is a preparation step (S2), a construction direction determination step (S3), a side layer construction step (S4), a bonding step (S5), It may further include a taping step (S7), a foam layer construction step (S8).

The preparation step (S2) is a step of checking a protruding portion or a recessed portion on the upper portion of the partition layer after the partition layer construction step (S1), and checking the piping condition on the upper portion of the partition layer. Specifically, in the process of constructing the interlayer sound insulation structure of the building on the upper part of the division, check the cleaned condition on the upper part of the division to see if there are any wastes or foreign substances that may interfere with the construction, and the part where the interlayer sound insulation material of the building will be installed. This is the step of checking whether there is a protruding part such as a reinforcing bar or a recessed part on the upper surface of the phosphorus partition layer. This is to exclude the internal cavity shape, and there should be no gravel or concrete lumps of 5mm or more. This is a step of checking in advance the condition of the pipe piped on the partition layer.

The construction direction determination step (S3) is a step of determining the construction direction of the sound insulation layer according to the direction and number of pipes confirmed as a result of checking the pipe condition after the preparation step (S2). Specifically, the construction direction is determined according to the direction and number of pipes and the shape of the protruding part on the wall. In addition, the construction direction of the sound insulation layer is determined in an efficient way to reduce the construction cost by reducing the number of times the sound insulation layer is cut, and to reduce the noise between floors among the one-way and grid methods.

The side layer construction step (S4) is a step of installing the side layer in the part where the separation layer, which is the wall part of the building, is formed after the construction direction determining step (S3). Specifically, first, the specification of the material of the side layer is determined by considering the purpose of the building and the structure of the building. Then, the selected side layer is attached to all inner walls that can transmit the vibration shock sound to the lower layer when the vibration shock sound occurs in the partition layer. In addition, the side layer is installed on the inner wall where the separation layer is formed according to the height line where the mortar layer will be finished.

In the sound insulation layer construction step (S6), the sound insulation layer 30 is formed from the upper part of the lower sound insulation layer 32 and the lower sound insulation layer 32 which are installed in close contact with the partition layer 40 so as to contact the partition layer 40. It is formed of an upper sound insulating layer 31 installed on the lower sound insulating layer 32 while accommodating the lower sound insulating layer 32.

Accordingly, the construction method of the interlayer sound insulation structure of a building according to the present invention includes a sound insulation layer formed of a double layer of an upper sound insulation layer and a lower sound insulation layer, a first space part is formed in the upper sound insulation layer, and a second space part is in the lower sound insulation layer. As it is formed, noise and vibration generated in the upper floor are primarily exhausted in the first space, and the remaining noise and vibration are also secondarily exhausted in the second space, so that inter-floor noise of the multi-story building can be effectively blocked.

The combining step (S5) is a step of combining the upper sound insulating part and the lower sound insulating part by inserting the lower sound insulating part into the upper sound insulating part so that the upper part of the lower sound insulating part is accommodated in the upper sound insulating part after the side layer construction step (S4).

Accordingly, the construction method of the interlayer sound insulation structure of a building according to the present invention includes a coupling step in which the lower sound insulation layer is inserted and installed in the upper sound insulation layer while forming the upper sound insulation layer and the lower sound insulation layer in order to increase the sound insulation effect. In the construction process of the sound insulation structure, it is possible to improve the ease of construction work of the sound insulation structure by allowing the sound insulation layer to be constructed once.

The taping step (S7) is a step of sealing the gap spaced apart between the upper sound insulating layer 31 and the lower sound insulating layer 32 joined after the sound insulating layer construction step (S6) with a tape. Specifically, in the sound insulation layer 30, the lower sound insulation part 32 is inserted into the upper sound insulation part 31 by the coupling step (S5). As such, the sound insulation layer 30 comprises the upper sound insulation layer 31 and the lower sound insulation layer. When formed in a double structure of 32), a gap is generated between the upper sound insulating layer 31 and the lower sound insulating layer 32 combined. The taping step (S7) is a process of preventing the gap from opening and sealing the gap by using a tape on the gap. Through this, when the foam layer is placed on the upper part of the sound insulation layer 30, the foam concrete forming the foam layer 20 is prevented from flowing into the lower part of the sound insulation layer 30, thereby preventing the sound insulation effect from deteriorating. .

The bubble layer construction step (S8) is a step of placing the bubble layer 20 on the top of the sound insulation layer 30 after the taping step (S7), and then curing the bubble layer 20. Although not necessarily limited to this. The foam layer may be formed of lightweight foam concrete, and in this case, the pour height is poured with a thickness of at least 30 mm and is displayed on the side layer 60 so that it is poured in accordance with the height of the finish line of the foam layer. After pouring, lightweight aerated concrete undergoes a curing process by maintaining the indoor temperature above 5°C for at least 3 to 7 days after construction.

In the sound insulating layer construction step (S6), the upper sound insulating layer 31 is formed of expanded polypropylene (EPS), and the lower sound insulating layer is formed of expanded polystyrene (EPS).

Through this, the construction method of the interlayer sound insulation structure of a building according to the present invention is formed of a double layer of the upper sound insulation layer and the lower sound insulation layer, the upper sound insulation layer is foamed polypropylene, and the material of the lower sound insulation layer is foamed polystyrene. By borrowing the advantages of the two materials, it is possible to improve the sound insulation effect of the sound insulation layer and at the same time reduce the cost and cost of the sound insulation structure.

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the relevant technical field of the present invention described in the claims to be described later It will be understood that various modifications and changes can be made to the present invention without departing from the spirit and technical scope. Therefore, the technical scope of the present invention should not be limited to the content described in the detailed description of the specification, but should be determined by the claims.

1: sound insulation structure between floors of a building, 10: mortar layer,
20: foam layer, 30: sound insulation layer,
31: upper sound insulation layer, 32: lower sound insulation layer.
40: partition layer, 50: separation layer,
60: side layer, 70: wall,
316: first space part, 323: second space part,
S1: partition layer construction stage, S2: preparation stage,
S3: construction direction determination step, S4: side layer construction step,
S5: bonding step, S6: sound insulation layer construction step,
S7: taping step, S8: foam layer construction step,
S9: mortar layer construction stage,

Claims (12)

delete A partition layer construction step of pouring and curing concrete to construct a partition layer;
A preparatory step of checking a protruding portion or a recessed portion on the upper portion of the partition layer and checking a pipe condition on the upper portion of the partition layer;
A construction direction determination step of determining the construction direction of the sound insulation layer according to the direction and number of pipes confirmed as a result of checking the pipe condition;
A side layer construction step of installing a side layer in a portion where a separation layer, which is a wall portion of a building, is formed;
A combining step of inserting the lower sound insulating layer into the upper sound insulating layer so that the upper sound insulating layer is accommodated in the upper sound insulating layer to combine the upper sound insulating layer and the lower sound insulating layer;
A sound insulation layer construction step of installing a sound insulation layer having a first space portion and a second space portion on the partition layer;
A taping step of sealing a gap spaced apart between the combined upper sound insulating layer and the lower sound insulating layer with a tape;
A foam layer construction step of curing the foam layer when the foam layer is poured or the foam layer is placed without pouring the foam layer;
Including; a mortar layer construction step of constructing a mortar layer on which the heating pipe of the building is installed on the top of the sound insulation layer,
In the sound insulation layer construction step, the sound insulation layer,
It is formed of a lower sound insulating layer provided in close contact with the partition layer so as to contact the partition layer, and an upper sound insulating layer installed on the lower sound insulating layer while receiving the lower sound insulating layer above the lower sound insulating layer,
In the sound insulation layer construction step,
The upper sound insulation layer is formed of expanded polypropylene,
The lower sound insulation layer is formed of expanded polystyrene,
The construction method of the interlayer sound insulation structure of a building, characterized in that the expansion ratio of the expanded polypropylene is formed to be 15 to 80 times or less.
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