JP7222498B1 - Soundproof structure - Google Patents

Abstract

An object of the present invention is to provide a soundproof structure capable of improving the soundproof performance of vertically adjacent dwelling units.
A soundproof structure is provided according to one aspect of the present invention. This soundproof structure includes a frame, a ceiling, walls, and a floor. The frame supports the ceiling and floor. The ceiling is arranged below the frame. A wall is provided vertically between the ceiling and the floor and supported by the ceiling and the floor. The floor is a floating floor that is arranged above the frame and is constructed by stacking a plurality of soundproof plate-like members in addition to the floor material.
[Selection drawing] Fig. 1

Description

The present invention relates to a soundproof structure.

Patent Literature 1 discloses a soundproof structure.

This soundproof structure consists of flooring materials arranged at a predetermined distance above the floor base and spaced apart from each other at a predetermined distance so that an underfloor space is formed between the floor base and the flooring. and a first wall member standing from the floor base and surrounding the floor material, wherein the first wall member faces the interior of the room. The underfloor space communicates with the interior of the room via the sound absorbing member.

Japanese Patent Application Laid-Open No. 2021-161682

However, the soundproofing structure disclosed in Patent Literature 1 only improves the soundproofing performance in one room, and does not improve the soundproofing performance for the vertically adjacent dwelling units.

In view of the above circumstances, the present invention provides a soundproof structure capable of improving the soundproof performance for vertically adjacent dwelling units.

According to one aspect of the invention, an acoustic structure is provided. This soundproof structure includes a frame, a ceiling, walls, and a floor. The frame supports the ceiling and floor. The ceiling is arranged below the frame. A wall is provided vertically between the ceiling and the floor and supported by the ceiling and the floor. The floor is a floating floor that is arranged above the frame and is constructed by stacking a plurality of soundproof plate-like members in addition to the floor material.

According to such an aspect, it is possible to improve the soundproof performance for the vertically adjacent dwelling units.

1 is a configuration diagram showing a soundproof structure 100; FIG. 3 is a diagram showing the configuration of a ceiling 300; FIG. 4 is a diagram showing the configuration of a wall 400; FIG. 6 is a diagram showing the configuration of a floor 600; FIG. 7 is a diagram showing the configuration of a constant ventilation duct 700. FIG. 4 is a diagram showing a state in which sound is generated inside the soundproof structure 100. FIG.

Embodiments of the present invention will be described below with reference to the drawings. Various features shown in the embodiments shown below can be combined with each other.

1. Configuration Section 1 describes the configuration of this embodiment.

1-1. Soundproof structure 100
FIG. 1 is a configuration diagram showing a soundproof structure 100. As shown in FIG.

The soundproof structure 100 includes a frame 200, a vibration-isolating hanging bracket (second vibration-isolating material) 210, a ceiling 300, a wall 400, an anti-vibration rubber (first anti-vibration material) 500, a floor 600, and constant ventilation. and a duct 700 for These constituent elements will be described.

Moreover, the soundproof structure 100 does not have a frame structure. Therefore, since the soundproof structure 100 can be made compact by the space occupied by the frame structure, the floor height of the building can be suppressed.

1-2. frame 200
The skeleton 200 functions as a frame portion that structurally supports the entire building. The skeleton 200 corresponds to columns, beams, walls, slabs, and the like, for example. The skeleton 200 supports the ceiling 300 and the floor 600 . In this embodiment, the frame 200 supports the ceiling 300 via anti-vibration suspension fittings 210 . Further, the frame 200 supports the floor 600 via the anti-vibration rubber 500 . Therefore, the skeleton 200 is arranged above the ceiling 300 and below the floor 600 . The skeleton 200 may be made of concrete, for example.

1-3. Anti-vibration hanging bracket 210
The anti-vibration suspension fitting 210 is configured to be deformed by an impact applied to the ceiling 300 to absorb the impact. The anti-vibration hanging metal fitting 210 includes an anti-vibration rubber (not shown). That is, the anti-vibration hanging bracket 210 is configured to be able to absorb vibrations (shocks) due to sound when the ceiling 300 is subjected to vibrations (shocks) due to deformation of the anti-vibration rubber. The anti-vibration hanging bracket 210 is arranged between the frame 200 and the ceiling 300 .

1-4. ceiling 300
FIG. 2 is a diagram showing the configuration of the ceiling 300. As shown in FIG.

The ceiling 300 is arranged below the skeleton 200 and suspended from the skeleton 200 . That is, the ceiling 300 is connected to the anti-vibration suspension fittings 210 connected to the frame 200 to form a double ceiling. Since the ceiling 300 is formed as a double ceiling, a space is created between the frame 200 and the ceiling 300, so that the space can be utilized as a space for piping such as electricity and water pipes. In this embodiment, the space between the frame 200 and the ceiling 300 is used as an installation space for the constant ventilation duct 700 .

In the ceiling 300, a reinforced gypsum board 310, a sound insulation sheet 320, and a hard gypsum board 330 are layered in this order from the building frame 200 side to the floor 600 side, and a rock wool sound absorbing board 340 or cloth 350 may be further layered. By laminating these materials, the ceiling 300 has the effect of attenuating the sound 810 propagating upward from within the soundproof structure 100 . The ceiling 300 has the effect of efficiently attenuating the sound 810 propagating upward from within the soundproof structure 100 by laminating the materials in the above order.

1-5. wall 400
FIG. 3 is a diagram showing the configuration of the wall 400. As shown in FIG.

Wall 400 is provided vertically between ceiling 300 and floor 600 . Wall 400 is supported by ceiling 300 and floor 600 . In other words, the wall 400 is cut off from the frame 200 and presents a configuration of ceiling and floor. Between the walls 400 and the ceiling 300 and between the walls 400 and the floor 600, hermetic acoustic caulking may be applied.

The wall 400 may be layered in the order of steel substrate 405, reinforced gypsum board 410, sound insulation sheet 420, hard gypsum board 430 and cloth 440 from outside to inside. The wall 400 has the effect of attenuating the sound 810 propagated horizontally from within the soundproof structure 100 by stacking these materials. The wall 400 has the effect of efficiently attenuating the sound 810 propagated horizontally from within the soundproof structure 100 by stacking the materials in the order described above.

1-6. Anti-vibration rubber 500
Anti-vibration rubber 500 is configured to be deformed by impact applied to floor 600 to absorb the impact. Anti-vibration rubber 500 is arranged between frame 200 and floor 600 . The anti-vibration rubbers 500 are connected to the frame 200 and the floor 600 respectively. Anti-vibration rubber 500 may be made of, for example, natural rubber. The anti-vibration rubber 500 has, for example, a cylindrical shape.

1-7. floor 600
FIG. 4 is a diagram showing the configuration of the floor 600. As shown in FIG.

Floor 600 is a dry floating floor. That is, since a space is provided between the frame 200 and the floor 600 , it is possible to prevent sound from being transmitted directly to the frame 200 . The floor 600 is placed on the anti-vibration rubber 500 . When floor 600 receives an impact, floor 600 sinks slightly due to compressive deformation of anti-vibration rubber 500, so wall 400 and floor 600 are arranged at a predetermined distance from each other.

The floor 600 is constructed by stacking a plurality of soundproof plate members in addition to a plurality of floor materials. The plurality of floor materials are configured so as to improve the construction accuracy of the floor 600 . The plurality of soundproof plate-shaped members are configured to be able to improve the soundproof performance of the floor 600 . Multiple floorings include plywood 610 and flooring (finishing) 640 . The plurality of soundproof plate members include a reinforced gypsum board (gypsum board) 620 and a sound insulation sheet (sound insulation sheet) 630 .

The plurality of soundproof plate members may be arranged between a flooring material and another flooring material. That is, the reinforced gypsum board 620 and the sound insulation sheet 630 may be placed between the plywood 610 and another plywood 610 .

According to this aspect, it is possible to improve the soundproof performance of the floor 600 while improving the construction accuracy of the floor 600 .

The plurality of soundproof plate members may have different thicknesses. That is, the reinforced gypsum board 620 and the sound insulation sheet 630 may have different thicknesses, the reinforced gypsum board 620 and another reinforced gypsum board 620 may have different thicknesses, and the sound insulation sheet 630 and the other sound insulation sheet 630 may have different thicknesses. The thickness can be different.

As the thickness of the reinforced gypsum board 620 increases, the sound insulation performance improves. However, the reinforced gypsum board 620 has a property that the sound insulation performance against sound of a specific frequency corresponding to the thickness decreases due to the coincidence effect. Therefore, by stacking a plurality of reinforced gypsum boards 620 each having a different thickness, it is possible to mutually compensate for the decrease in sound insulation performance due to the coincidence effect. Therefore, by stacking a plurality of reinforced gypsum boards 620 each having a different thickness, sounds of various frequencies can be efficiently attenuated. The same can be said for the sound insulating sheet 630 as well.

In particular, the floor 600 may be laminated in order from the bottom layer: plywood 610, reinforced gypsum board 620, sound insulation sheet 630, reinforced gypsum board 620, sound insulation sheet 630, reinforced gypsum board 620, plywood 610, and flooring 640. As such, the acoustic sheet 630 may be placed between two reinforced gypsum boards 620 . At this time, the floor 600 consists of, for example, plywood 610 with a thickness of 12 mm, reinforced gypsum board 620 with a thickness of 21 mm, sound insulation sheet 630 with a thickness of 4 mm, reinforced gypsum board 620 with a thickness of 15 mm, and sound insulation with a thickness of 4 mm. Sheet 630, 12.5 mm thick reinforced gypsum board 620, 12 mm thick plywood 610, and 16 mm thick flooring 640 may be laminated in this order. Here, the thickness of the reinforced gypsum board 620 is thinner in the upper layer than in the lower layer. In other words, the plurality of soundproof plate members may be configured such that the upper layers are thinner than the lower layers.

In the laminated structure of the soundproof plate members as described above, the upper layer can be more reliably supported by the lower layer while suppressing the mass applied to the lower layer by configuring the upper layer to be thinner than the lower layer. Moreover, since the laminated structure of the floor 600 as described above is a dry laminated structure, it is possible to improve the construction accuracy of the floor 600 while reducing the weight.

Also, joints of the plurality of floor materials and the plurality of soundproof plate members may be arranged so as not to overlap in the vertical direction. This seam placement will be described with the north side of the acoustic structure 100 as the reference for the start of the seam. For example: (1) For plywood 610, the seam start is 1 cm and the seam spacing is 90 cm. (2) The reinforced gypsum board 620 has a seam start of 30 cm and a seam spacing of 90 cm. (3) The sound insulation sheet 630 has a seam start of 60 cm and a seam interval of 90 cm. By arranging the joints as described in (1) to (3) above, it is possible to configure such that the joints do not overlap each other in the vertical direction.

That is, when the seams overlap, sound that penetrates the seams is easily propagated through the seams. Therefore, by preventing overlapping of the joints and blocking the sound entering the joints, it is possible to effectively suppress the propagation of the sound.

1-8. Duct 700 for constant ventilation
FIG. 5 is a diagram showing the configuration of the constant ventilation duct 700. As shown in FIG.

The constant ventilation duct 700 is a duct used in a constant ventilation system (so-called 24-hour ventilation system). A constant ventilation duct 700 is connected to a ventilation device 710 and includes an air supply duct 720 and an exhaust duct 730 . The air in the room and the outside air are exchanged within a predetermined time by air supply/exhaust control executed by the ventilation device 710 . A constant ventilation duct 700 is arranged between the frame 200 and the ceiling 300 through a hole in the ceiling 300 . The constant ventilation duct 700 extends from the connection with the ventilation device 710 toward the outside of the soundproof structure 100 . The gap between the constant ventilation duct 700 and the ceiling 300 may be provided with a gap filler and an airtight acoustic caulk. The constant ventilation duct 700 may be made of, for example, a galvanized iron plate.

The length of the constant ventilation duct 700 is more than half the length of the side of the contact surface between the ceiling 300 and the wall 400 . That is, for example, if the length of the side formed by the contact surface between the ceiling 300 and the wall 400 on the north side of the soundproof structure 100 is 10 m, the length of the constant ventilation duct 700 is 5 m or more. good. Specifically, for example, 5, 5.2, 5.4, 5.6, 5.8, 6, 6.2, 6.4, 6.6, 6.8, 7, 7.2, 7. 4, 7.6, 7.8, 8, 8.2, 8.4, 8.6, 8.8, 9, 9.2, 9.4, 9.6, 9.8, 10, 10. 2, 10.4, 10.6, 10.8, 11, 11.2, 11.4, 11.6, 11.8, 12, 12.2, 12.4, 12.6, 12.8, 13, 13.2, 13.4, 13.6, 13.8, 14, 14.2, 14.4, 14.6, 14.8, 15, 15.2, 15.4, 15.6, 15.8, 16, 16.2, 16.4, 16.6, 16.8, 17, 17.2, 17.4, 17.6, 17.8, 18, 18.2, 18.4, 18.6, 18.8, 19, 19.2, 19.4, 19.6, 19.8, 20 m or more, and may be within a range between any two of the values exemplified here .

Here, comparison with a virtual duct 740, which is a virtual duct, will be described. It is assumed that the virtual duct 740 is configured at substantially the shortest distance from the air supply port or the exhaust port contacting the outside of the soundproof structure 100 to the ventilation device 710 . On the other hand, the constant ventilation duct 700 is configured such that the distance from the air supply/exhaust port to the ventilation device 710 is longer than that of the virtual duct 740 . Therefore, the sound propagating in the constant ventilation duct 700 is attenuated according to the distance reaching the air supply/exhaust port.

2. Action Section 2 describes the action of the present embodiment.

FIG. 6 is a diagram showing a state in which sound is generated inside the soundproof structure 100. As shown in FIG.

FIG. 6 illustrates a drum 800 as an example of a sound source. When sound 810 is generated from drum 800 , sound 810 propagates toward each structure of sound insulation structure 100 . The soundproof action of each structure of the soundproof structure 100 will be described below.

2-1. Effects of Sound Insulation by the Ceiling 300 Sound 810 reaches the rock wool sound absorbing plate 340 in the ceiling 300 . The sound 810 is absorbed by the rock wool sound absorbing plate 340 and is attenuated by the absorbed sound. Sound 810 then reaches hard gypsum board 330 . The sound 810 is insulated by the hard gypsum board 330 and is attenuated by the sound insulation. The sound 810 then reaches the sound insulation sheet 320 . The sound 810 is insulated by the sound insulation sheet 320 and is attenuated by the sound insulation. The sound 810 then reaches the reinforced gypsum board 310 . The sound 810 is insulated by the reinforced gypsum board 310 and is attenuated by the sound insulation.

Subsequently, the sound 810 reaches glass wool (not shown). The sound 810 is absorbed by the glass wool and is attenuated by the absorbed sound. The sound 810 then reaches the skeleton 200 . The sound 810 is insulated by the skeleton 200 and is attenuated by the amount of sound insulation. Through the above soundproofing process, the sound 810 reaches the outside of the soundproof structure 100 (outdoors or adjacent dwelling units).

As described above, the ceiling 300 has the effect of attenuating the sound 810 propagated upward from the drum 800 .

2-2. Effects of Sound Insulation by Wall 400 Sound 810 reaches cloth 440 in wall 400 . Sound 810 then reaches hard gypsum board 430 . The sound 810 is insulated by the hard gypsum board 430 and is attenuated by the sound insulation. The sound 810 then reaches the sound insulation sheet 420 . The sound 810 is insulated by the sound insulation sheet 420 and is attenuated by the sound insulation. The sound 810 then reaches the reinforced gypsum board 410 . The sound 810 is insulated by the reinforced gypsum board 410 and is attenuated by the sound insulation.

Subsequently, the sound 810 reaches glass wool (not shown). The sound 810 is absorbed by the glass wool and is attenuated by the absorbed sound. The sound 810 then reaches the skeleton 200 . The sound 810 is insulated by the skeleton 200 and is attenuated by the amount of sound insulation. Through the above soundproofing process, the sound 810 reaches the outside of the soundproof structure 100 (outdoors or adjacent dwelling units).

As described above, the wall 400 has the effect of attenuating the sound 810 propagated from the drum 800 in the horizontal direction.

2-3. Effects of Sound Insulation by Floor 600 Sound 810 reaches flooring 640 in floor 600 . Sound 810 then reaches plywood 610 . The sound 810 is insulated by the plywood 610 and attenuated by the sound insulation. The sound 810 then reaches the reinforced gypsum board 620 . The sound 810 is insulated by the reinforced gypsum board 620 and is attenuated by the sound insulation. The sound 810 then reaches the sound insulation sheet 630 . The sound 810 is insulated by the sound insulation sheet 630 and is attenuated by the sound insulation. The sound 810 then reaches the reinforced gypsum board 620 . The sound 810 is insulated by the reinforced gypsum board 620 and is attenuated by the sound insulation.

The sound 810 then reaches the sound insulation sheet 630 . The sound 810 is insulated by the sound insulation sheet 630 and is attenuated by the sound insulation. The sound 810 then reaches the reinforced gypsum board 620 . The sound 810 is insulated by the reinforced gypsum board 620 and is attenuated by the sound insulation. Sound 810 then reaches plywood 610 . The sound 810 is insulated by the plywood 610 and attenuated by the sound insulation. Furthermore, the vibration of the floor 600 due to the sound 810 is absorbed by the anti-vibration rubber 500 .

A sound 810 transmitted through the floor 600 reaches glass wool (not shown). The sound 810 is absorbed by the glass wool and is attenuated by the absorbed sound. The sound 810 then reaches the skeleton 200 . The sound 810 is insulated by the skeleton 200 and is attenuated by the amount of sound insulation. Through the above soundproofing process, the sound 810 reaches the outside of the soundproof structure 100 (outdoors or adjacent dwelling units).

As described above, the floor 600 has the effect of attenuating the sound 810 propagated downward from the drum 800 .

3. Others Although the embodiment of the present invention has been described above, the present invention is not limited to this and can be modified as appropriate without departing from the technical idea of the invention.

As a first modified example, the vibration-isolating material is not limited to the vibration-isolating rubber 500 made of natural rubber, and may be made of, for example, fluororubber, silicone resin, urethane resin, or the like.

As a second modification, the constant ventilation duct 700 is not limited to being made of a galvanized iron plate, and may be made of, for example, a Galvalume steel plate (registered trademark), a stainless steel plate, a vinyl chloride-coated steel plate, or the like.

As a third modification, the finishing material is not limited to the flooring 640, and may be, for example, a carpet.

It may be provided in each aspect described below.

(1) A soundproof structure comprising a frame, a ceiling, walls, and a floor, wherein the frame supports the ceiling and the floor, the ceiling is disposed below the frame, and the wall is provided vertically between the ceiling and the floor, supported by the ceiling and the floor, the floor is arranged above the frame, and includes a plurality of soundproof plate members in addition to flooring A soundproof structure that is a floating floor that is constructed in layers.

According to this aspect, the soundproof performance for the vertically adjacent dwelling units can be improved by the floating floor configured by stacking the plurality of soundproof plate members. That is, since sound inside a structure such as a room has a property of propagating more vertically than horizontally, the sound can be efficiently attenuated. In addition, since the wall is separated from the frame, it is possible to attenuate the vibration caused by the sound generated in the wall and propagated to the frame.

(2) The soundproof structure according to (1) above, wherein the soundproof structure includes a plurality of floor materials, and the plurality of soundproof plate members are arranged between the floor material and another floor material. .

According to such an aspect, it is possible to improve the construction accuracy of the soundproof plate-shaped member due to the action of the floor material.

(3) The soundproof structure according to (1) or (2) above, wherein the plurality of soundproof plate members have different thicknesses.

According to such an aspect, various transmitted sounds can be attenuated by mutually compensating for the deterioration of the sound insulation performance due to the coincidence effect that occurs in the soundproof plate member.

(4) In the soundproof structure according to (3) above, the plurality of soundproof plate members are configured such that the upper layers are thinner than the lower layers.

According to such an aspect, in addition to damping the sound, the support performance of the floor can be improved.

(5) The soundproof structure according to any one of (1) to (4) above, wherein joints of the plurality of soundproof plate members are arranged so as not to overlap in the vertical direction.

According to this aspect, it is possible to prevent sound from leaking through the joint.

(6) The soundproof structure according to any one of (1) to (5) above, wherein the floor is a dry floating floor.

According to this aspect, the weight of the soundproof structure can be reduced as compared with a wet floating floor made of concrete or the like.

(7) The soundproof structure according to any one of (1) to (6) above, wherein the plurality of soundproof plate members include gypsum boards and soundproof sheets.

According to such an aspect, a member suitable for soundproofing can be applied.

(8) The soundproof structure according to (7) above, wherein the soundproof sheet is arranged between the two gypsum boards.

According to this aspect, by sequentially laminating members made of different materials, it is possible to efficiently attenuate various sound frequencies.

(9) The soundproof structure according to (7) or (8) above, wherein the soundproof sheet is a soundproof sheet.

According to this aspect, by improving the sound insulation performance, it is possible to attenuate the sound frequency more efficiently than the sound absorbing sheet.

(10) In the soundproof structure according to any one of (7) to (9) above, the floor material includes plywood and finishing material, and the floor is composed of plywood, gypsum board, A soundproof structure in which the soundproof sheet, the gypsum board, the soundproof sheet, the gypsum board, the plywood, and the finishing material are laminated in this order.

According to this aspect, since the soundproof plate member is arranged between the plywoods, it is possible to improve the construction accuracy of the floor and efficiently attenuate various sound frequencies.

(11) The soundproof structure according to any one of (1) to (10) above, wherein the ceiling is suspended from the frame.

According to this aspect, since the ceiling is separated from the building frame, it is possible to attenuate the vibration caused by the sound generated in the ceiling and propagated to the building frame.

(12) The soundproof structure according to any one of (1) to (11) above includes a first vibration isolator, and the first vibration insulator is arranged between the frame and the floor. and is deformed by an impact applied to the floor to absorb the impact.

According to this aspect, the first vibration-damping material can attenuate the vibration caused by the sound generated in the floor and propagated to the frame.

(13) The soundproof structure according to any one of (1) to (12) above, further comprising a second vibration isolator, wherein the second vibration insulator is arranged between the frame and the ceiling. and is deformed by an impact applied to the ceiling to absorb the impact.

According to this aspect, the second vibration-damping material can attenuate the vibration caused by the sound generated in the ceiling and propagated to the frame.

(14) The soundproof structure according to any one of (1) to (13) above, comprising a constant ventilation duct, wherein the constant ventilation duct is arranged between the frame and the ceiling, A soundproof structure, wherein the length of the constant ventilation duct is equal to or longer than half the length of the side of the contact surface between the ceiling and the wall.

According to this aspect, since the length of the entire duct can be ensured, the sound propagating in the duct can be efficiently attenuated before the sound reaches the outside.
Of course, this is not the only case.

100: Soundproof structure 200: Frame 210: Anti-vibration hanging bracket 300: Ceiling 310: Reinforced gypsum board 320: Sound insulation sheet 330: Hard gypsum board 340: Rock wool sound absorbing board 350: Cloth 400: Wall 405: Steel base material 410: Reinforced gypsum board 420: Sound insulation sheet 430: Hard gypsum board 440: Cloth 500: Anti-vibration rubber 600: Flooring 610: Plywood 620: Reinforced gypsum board 630: Sound insulation sheet 640: Flooring 700: Ventilation duct 710: Ventilation device 720: Supply Air duct 730 : Exhaust duct 740 : Virtual duct 800 : Drum 810 : Sound

Claims (12)

A soundproof structure,
Equipped with a frame, a ceiling, walls, and a floor,
The frame supports the ceiling and the floor,
The ceiling is arranged below the skeleton,
the wall is vertically provided between the ceiling and the floor and supported by the ceiling and the floor;
The floor is a floating floor arranged above the frame and configured by stacking a plurality of soundproof plate-shaped members in addition to the floor material,
The flooring includes plywood and finishing materials,
The plurality of soundproof plate members include gypsum boards and soundproof sheets,
Soundproof structure. In the soundproof structure according to claim 1,
Equipped with multiple floor materials,
The plurality of soundproof plate members are arranged between the flooring material and another flooring material,
Soundproof structure. In the soundproof structure according to claim 1,
The plurality of soundproof plate-shaped members have different thicknesses,
Soundproof structure. In the soundproof structure according to claim 3,
The plurality of soundproof plate members are configured so that the upper layer is thinner than the lower layer,
Soundproof structure. In the soundproof structure according to claim 1,
The seams of the plurality of soundproof plate members are arranged so as not to overlap in the vertical direction.
Soundproof structure. In the soundproof structure according to claim 1,
wherein the floor is a dry floating floor;
Soundproof structure. In the soundproof structure according to claim 1,
The soundproof sheet is placed between the two gypsum boards,
Soundproof structure. In the soundproof structure according to claim 1,
The soundproof sheet is a soundproof sheet,
Soundproof structure. In the soundproof structure according to claim 1,
The flooring includes plywood and finishing materials,
In the floor, from the bottom layer, the plywood, the gypsum board, the soundproof sheet, the gypsum board, the soundproof sheet, the gypsum board, the plywood, and the finishing material are laminated in this order.
Soundproof structure. In the soundproof structure according to claim 1,
The ceiling is provided suspended from the skeleton,
Soundproof structure. In the soundproof structure according to claim 1,
Equipped with a first anti-vibration material,
The first vibration-proof material is arranged between the frame and the floor, and is configured to be deformed by an impact applied to the floor and absorb the impact.
Soundproof structure. In the soundproof structure according to claim 1,
Equipped with a second anti-vibration material,
The second vibration-proof material is disposed between the frame and the ceiling, and is configured to be deformed by an impact applied to the ceiling and absorb the impact.
Soundproof structure.

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