JP2021025264A - Soundproof structure for housing complex - Google Patents

Abstract

To provide a soundproof structure for a housing complex, where band performances, intense dances, sports and the like can be carried out.SOLUTION: A soundproof structure S1 for a housing complex according to one embodiment of the present invention comprises: a first structure 10 composed of a first floor 11, a first wall 12, and a first ceiling 13, each of which is a concrete skeleton; a second structure 20 to be built within the first structure, wherein the second structure is composed by including a second floor 21 which is a floating concrete casted onto the first floor through a vibration-proof member, a second wall 22 to be built within the first wall, and a second ceiling 23 to be built under the first ceiling; and a third structure 30 to be built within the second structure, wherein the third structure is composed by including a third floor 31 to be built on the second floor in a floating-floor manner by separating itself from the second wall, and is installed with a dynamic damper 31g on the third floor 31 as a vibration control device.SELECTED DRAWING: Figure 1

Description

The present invention relates to a soundproof structure of an apartment house that enables band performance, intense dance, sports, and the like.

Conventionally, there have been double-structured soundproof condominiums that allow musical instruments to be played in apartment buildings. The soundproofing performance of the double-structured soundproofed condominium was about Dr-60 to Dr-70, and it was possible to play pianos, guitars, and woodwind instruments (playing sounds of 100 dB or less).

For example, in the soundproof chamber structure described in Patent Document 1, a tubular outer wall having a soundproof function is constructed on the upper surface of the floor slab, and a cushioning material is provided on the upper surface of the floor slab so as to be located inside the outer wall. Build a sound insulation box through. Then, a vibration absorbing member mainly for absorbing vertical vibration of the sound insulating box is interposed between the ceiling of the sound insulating box and the upper slab, and the sound of the sound insulating box is included between the wall and the outer wall of the sound insulating box. A vibration absorbing member is interposed mainly for absorbing lateral vibration.

Japanese Unexamined Patent Publication No. 2012-1931

By the way, the impact sound of the floor is one of the most difficult to insulate. Since heavy impact sounds such as footsteps such as dong are easily propagated to the building frame, it is extremely difficult to achieve a floor impact sound blocking performance of Lr-30 or higher, which is a level at which the footsteps can hardly be heard. is there. Therefore, for these reasons, it has been impossible to perform band performances including live drums, violent footsteps, vibrations, and loud dances and sports in the living room of an apartment house. As described above, the soundproof chamber structure of Patent Document 1 only has a cushioning material interposed between the upper surface of the floor slab and the soundproof box, and further improvement of the soundproof performance is desired.

An object of the present invention is to provide a soundproof structure of an apartment house capable of performing band performance, intense dance, sports and the like.

One aspect of the present invention is
A first structure having a first floor, a first wall, and a first ceiling, which are concrete skeletons, respectively, and a second structure constructed in the first structure. The second floor, which is a floating concrete placed on the first floor via a vibration isolator, the second wall constructed in the first wall, and the first under the ceiling. A second structure constructed with a second ceiling constructed in concrete
A third structure constructed in the second structure, the second floor having a third floor separated from the second wall and constructed in a floating floor shape. A vibration damping device is provided on the third floor, which has a third structure.
Provides a soundproof structure for apartment buildings.

Preferably, the second ceiling is connected to the first ceiling via a vibration isolator. Further, it is preferable that the second wall is separated from the first wall and is installed between the second floor and the second ceiling.

Preferably, a space formed by the second floor, the first wall, the second wall and the second ceiling, and a partition formed between the first floor and the second floor. The second floor has a partial gap between it and the first wall so as to connect the space to be formed.

The present invention also exists in an apartment house in which all the dwelling units are provided with the soundproof structure of the above-mentioned apartment house.

According to the soundproof structure of the apartment house according to the above aspect of the present invention, since the above-mentioned structure is provided, it is possible to perform band performance, intense dance, sports and the like.

It is sectional drawing of the soundproof structure of the apartment house which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the relationship between the 3rd floor of the 3rd structure, and the 2nd structure in the soundproof structure of the apartment house of FIG. It is sectional drawing of the soundproof structure of the apartment house which concerns on 2nd Embodiment of this invention. It is a figure for demonstrating the structure around the 2nd floor of the 2nd structure in the soundproof structure of the apartment house of FIG. 3, and (a) is the view which looked at one corner around the 2nd floor from the upper side. (B) shows the connection of the upper and lower spaces at the gaps in (a).

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the following embodiments, the case where the present invention is applied to all the dwelling units of a so-called condominium as an apartment house will be described, but these are examples and are intended to be applied only to the following contents. It's not a thing.

First, the soundproof structure S1 of the apartment house according to the first embodiment of the present invention will be described. First, the overall configuration of the soundproof structure S1 of the apartment house of the first embodiment will be described. As shown in FIG. 1, the soundproof structure S1 of the apartment house has a first structure 10, a second structure 20 constructed in the first structure 10, and a second structure constructed in the second structure 20. With the structure 30 of 3, it is made into a triple structure as a whole.

The first structure 10 includes a first floor 11, a first wall 12, and a first ceiling 13, which are concrete skeletons, respectively. The thickness of each of the first floor 11, the first wall 12, and the first ceiling 13 is preferably 180 mm or more. In addition, since the first structure 10 is a normal concrete skeleton structure, the description thereof will be omitted. For example, the first floor 11 of the dwelling unit on the third floor corresponds to the first ceiling 13 of the dwelling unit on the second floor.

The second structure 20 includes a second floor 21 of a vibration-proof structure constructed on the first floor 11, a second wall 22 of the vibration-proof structure constructed in the first wall 12, and a second wall. It is configured to include a second ceiling 23 having a vibration-proof structure constructed under the ceiling 13 of 1.

The second floor 21 is mainly configured as a floating floor concrete cast on the first floor 11 via a vibration-proof rubber 21a as a vibration-proof member. A plurality of anti-vibration rubbers 21a are provided, and the number thereof can be determined by the assumed load and the withstand load of the anti-vibration rubber. Each of the anti-vibration rubbers 21a is provided on the height adjusting mortar member 21b and supports the second floor 21. More specifically, the keystone plate 21d, which also functions as a formwork, is placed on the joist 21c to which the anti-vibration rubber abuts, and the periphery is surrounded by the glass wool board 21e, which is made by processing glass wool into a board shape, and concrete 21f is cast. This constitutes the second floor 21. The thickness of the second floor 21 is preferably 100 mm or more.

The second wall 22 of the present embodiment is configured by laying a sound absorbing member 22b such as glass wool between the lightweight steel frame studs 22a, and is installed on the second floor 21 which is a floating concrete. The second wall 22 may be configured to include a lightweight steel frame stud that is compression-filled with a sound absorbing member such as glass wool.

The second ceiling 23 of the present embodiment is configured by laying a sound absorbing member 23b such as glass wool between the lightweight steel frame field edges 23a in which the damping material is integrated. The second ceiling 23 is supported by the second wall 22 and is passed between the first walls 12 via the field edge receiving end runner 23c and the insulating sponge rubber. As shown in FIG. 1, the second ceiling 23 is separated from the first ceiling 13, but is attached to the first ceiling 13 via a hanger 23f provided with a vibration-proof rubber 23e as a vibration-proof member. It is connected.

The above-mentioned second wall 22 is separated from the first wall 12. In addition, the second wall 22 is installed between the second floor 21 and the second ceiling 23, particularly so as to be sandwiched between them.

Further, the second wall 22 and the second ceiling 23 have a configuration in which the sound insulating members 22p and 23p and the sound absorbing members 22q and 23q are bonded from the outside further inside the above configuration. The sound insulating members 22p and 23p are made of, for example, a multi-layered gypsum board, and the sound absorbing members 22q and 23q are made of, for example, a member containing glass wool. The sound insulating members 22p and 23p and the sound absorbing members 22q and 23q are provided inside the second wall 22 and the second ceiling 23, respectively, as a part thereof. However, the sound insulating members 22p and 23p and the sound absorbing members 22q and 23q may be configured independently of the second wall 22 and the second ceiling 23. As shown in FIGS. 1 and 2, the second wall 22 is provided with a skirting board 22r on the innermost side. Here, the skirting board 22r is separated from the third floor 31, which will be described later, and is regarded as a floating skirting board.

The third structure 30 is constructed in the second structure 20. The third structure 30 is configured to have a third floor 31 that is constructed in a floating floor shape on the second floor 21 and is constructed separately from the second wall 22. The third floor 31 is supported on the second floor 21 via a rubber material 31a as a vibration-proof member, specifically, a cushion rubber. It is preferable that there are a plurality of rubber materials 31a, and the number thereof can be determined by the assumed load capacity and the load capacity. As shown in FIG. 2, the rubber material 31a supports the third floor 31 via the supporting material 31b and the receiving material 31c on the rubber material 31a.

The third floor 31 has a structural material 31d, a damping material 31e on the structural material 31d, and a floor finishing material 31f on the structural material 31d. The structural material 31d is preferably made of plywood, and the damping material 31e is preferably made of special granular rubber or asphalt. The thickness of the damping material 31e is preferably 9 mm or more. A dynamic damper 31 g is provided on the third floor 31 as a vibration damping device. The number of dynamic dampers 31g may be any number. The dynamic damper 31g is attached to the structural material 31d of the third floor 31. The dynamic damper 31g is particularly effective at 30 to 70 Hz, which is a causative vibration of walking noise and heavy impact noise, in order to prevent resonance of the third floor 31 which is a floating floor. Therefore, the thickness of the structural material 31d is preferably 20 mm or more.

As mentioned above, the skirting board 22r of the second wall 22 is separated from the third floor 31 and is regarded as a floating skirting board. Therefore, as schematically shown in FIG. 2, in the third floor 31, a water-stopping insect repellent member, that is, an angle 31h is provided so as to extend from below the floor finishing material 31f. Further, in order to prevent insects and the like from entering the living room from between the angle 31h and the skirting board 22r, a sealing material 22s, specifically, a glass fiber tape is provided here. Although the sealing material 22s is separated from the angle 31h in FIG. 2 for clarity, it is preferable that the sealing material 22s is connected to the third floor 31 including the angle 31h.

The action and effect of the soundproof structure S1 of the apartment house of the first embodiment having the above configuration will be described below.

The soundproof structure S1 of the apartment house has a second structure 20 in the first structure 10 and a third structure 30 in the second structure 20. The second floor 21 of the second structure 20 is substantially made of floating concrete via a vibration-proof rubber 21a as a vibration-proof member. Further, the third floor 31 of the third structure 30 has a floating floor shape, and a dynamic damper 31 g as a vibration damping device is provided. Therefore, the vibration-damping rubber 21a as the vibration-damping member enhances the vibration-damping performance of the second and third floors 21 and 31, and the dynamic damper 31 g as the vibration-damping device enhances the vibration-damping performance of the third floor 31. It makes it possible. Further, the third floor 31 of the third structure 30 is constructed by being separated from the second wall 22 of the second structure 20. Therefore, it is possible to improve the vibration damping performance of the third floor 31 and sufficiently prevent the vibration of the third floor 31 from propagating to the second structure 20, further improving the vibration damping performance. It will be possible. As described above, the soundproof structure S1 of the apartment house has a double floor structure of the second floor 21 and the third floor 31 in the first structure 10 and a third wall 22 with respect to the second wall 22. By adopting a separation structure that separates the floor 31, it is possible to exhibit excellent vibration isolation performance and vibration suppression performance. Therefore, the soundproof structure S1 of the apartment house is extremely excellent in the soundproofing performance of the apartment house, and thus makes it possible to perform band performance, intense dance, sports and the like.

Further, in the soundproof structure S1 of the apartment house, the third floor 31 of the third structure 30 is formed into a floating floor shape via a rubber material 31a as a vibration-proof member. Therefore, the vibration isolation performance of the second and third floors 21 and 31 can be further enhanced, and thus the soundproofing performance of the apartment house can be further enhanced.

Further, as described above, the second floor 21 and the third floor 31 are constructed on the first floor 11 via the vibration damping rubber 21a as the vibration damping member, and the third floor 31 has a vibration damping rubber 21a. A dynamic damper 31 g as a vibration damping device is provided. Therefore, the vibration damping performance and the vibration damping performance of the third floor 31 can be extremely enhanced. Therefore, it is possible to reduce the burden on the third floor of the human body, that is, the legs and waist of the human body. In addition, the third floor 31 is constructed on the second floor 21 via a rubber material 31a as a vibration isolator. Therefore, the anti-vibration performance can be further enhanced, and thus the burden on the human body can be further reduced.

Further, the second ceiling 23 is connected to the first ceiling 13 via a hanger 23f provided with a vibration-proof rubber 23e as a vibration-proof member, and is particularly suspended here. The second wall 22 is separated from the first wall 12, particularly completely separated, and is installed between the second floor 21 and the second ceiling 23. As described above, the soundproof structure S1 of the apartment house adopts a separation structure in which there is no bridge tie material between the second wall 22 and the skeleton, that is, the first wall 12. Therefore, it becomes possible to more reliably prevent the vibration of the second wall, which receives the most air-borne sound in the living room, that is, the space inside the second structure 20, from being solid-propagated to the first structure 10, and has soundproofing performance. Can be further increased.

Further, as described above, the skirting board 22r is separated from the third floor 31 to be a floating skirting board, whereby an air vent structure is constructed around the third floor 31. Therefore, it is possible to suitably prevent the occurrence of the drum sound phenomenon due to the impact caused by dancing to the third floor 31 or the like. Therefore, the sound insulation performance of heavy impact sound can be further enhanced, and thus the soundproofing performance can be further enhanced.

Further, the second ceiling 23 is configured by laying a sound absorbing member 23b such as glass wool on a lightweight steel frame field edge 23a in which a damping material is integrated. Therefore, the damping material can insulate the vibration from the second ceiling 23 to the lightweight steel frame field edge 23a, and the vibration of the second ceiling 23 propagates to the lightweight steel base, particularly to the lightweight steel stud 22a. You can prevent it more firmly. Therefore, the soundproofing performance can be further improved.

Next, the soundproof structure S2 of the apartment house of the second embodiment according to the present invention will be described. In the following, only the difference between the soundproof structure S2 of the apartment house of the second embodiment and the soundproof structure S1 of the apartment house of the first embodiment will be described, and other explanations will be omitted. In addition, except for the configuration described below, the soundproof structure S2 of the apartment house of the second embodiment similarly includes the structure of the soundproof structure S1 of the apartment house of the first embodiment.

In the soundproof structure S2 of the apartment house of the second embodiment shown in FIG. 3, the glass wool board 21e around the second floor 21 is partially removed. FIG. 3 shows a cross section at a location where the glass wool board 21e has been removed. The glass wool board 21e around the second floor 21 is partially removed after the second floor 21 is placed. Here, the glass wool boards 21e other than the glass wool boards 21e at the four corners are excluded.

FIG. 4A shows a schematic view of a corner 21k around the second floor 21 as viewed from above. As shown in FIG. 4A, the glass wool board 21e formworked for the concrete placement of the second floor 21 is removed except for some glass wool boards 21e in the corners. Therefore, the second floor 21 has a partial gap C between it and the first wall 12. Therefore, as shown by the arrow A in FIG. 4B, the peripheral space SP1 partitioned by the second floor 21, the first wall 12, the second wall 22, and the second ceiling 23, and the first It is connected to the lower space SP2 which is partitioned between the floor 11 and the second floor 21. In FIG. 4B, the removed glass wool board 21e is shown by a broken line.

Therefore, the sound energy or vibration energy leaked from the soundproof room, that is, the inside of the second structure 20, to the back air layer can freely convect the spaces SP1 and SP2, that is, the back air layer outside the second structure 20. Can be done. Therefore, the attenuation is likely to occur. Therefore, according to the soundproof structure S2 of the apartment house of the second embodiment, in addition to the effect of the soundproof structure S1 of the apartment house of the first embodiment, the soundproof performance can be further enhanced.

Although the embodiments of the present invention and modifications thereof have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes to the extent that the gist of the present invention is not deviated are possible. , Included in the present invention.

S1, S2 Soundproof structure SP1 Peripheral space SP2 Lower space 10 First structure 11 First floor 12 First wall 13 First ceiling 20 Second structure 21 Second floor 21a Anti-vibration rubber 21b Height Adjustment mortar member 21c Joist 21d Keystone plate 21e Glass wool board 21f Concrete 22 Second wall 22a Lightweight steel stud 22b Sound absorbing member 22p Sound insulating member 22q Sound absorbing member 22r Width 22s Sealing material 23 Second ceiling 23a Lightweight steel field edge 23b Sound absorbing Member 23c Field edge receiving end runner 23p Sound insulating member 23q Sound absorbing member 30 Third structure 31 Third floor 31a Rubber material 31b Support material 31c Receiving material 31d Structural material 31e Anti-vibration material 31f Floor finishing material 31g Dynamic damper 31h Angle

One aspect of the present invention is
A first structure having a first floor, a first wall, and a first ceiling, which are concrete skeletons, respectively, and a second structure constructed in the first structure. The second floor, which is a floating concrete placed on the first floor via a vibration isolator, the second wall constructed in the first wall, and the first under the ceiling. A second structure constructed with a second ceiling constructed in concrete
It is a third structure constructed in the second structure, and is constructed in a floating floor shape by separating from the second wall on the second floor and providing a space between the second wall and the second wall. It is configured to have a third floor, and the third floor is provided with a vibration damping device, and has a third structure.
Provides a soundproof structure for apartment buildings.

Claims (4)

A first structure having a first floor, a first wall, and a first ceiling, which are concrete skeletons, respectively, and a second structure constructed in the first structure. The second floor, which is a floating concrete placed on the first floor via a vibration isolator, the second wall constructed in the first wall, and the first under the ceiling. A second structure constructed with a second ceiling constructed in concrete
A third structure constructed in the second structure, the second floor having a third floor separated from the second wall and constructed in a floating floor shape. A vibration damping device is provided on the third floor, which has a third structure.
Soundproof structure of an apartment house. The second ceiling is connected to the first ceiling via an anti-vibration member, and is connected to the first ceiling.
The second wall is separated from the first wall and is installed between the second floor and the second ceiling.
The soundproof structure of the apartment house according to claim 1. A space partitioned by the second floor, the first wall, the second wall and the second ceiling, and a space partitioned between the first floor and the second floor. The second floor has a partial gap between it and the first wall so as to connect with the first wall.
The soundproof structure of an apartment house according to claim 1 or 2. An apartment house in which all the dwelling units have the soundproof structure of the apartment house according to any one of claims 1 to 3.

Images