JP2763994B2 - Sound insulation structure on the floor of the building - Google Patents
Sound insulation structure on the floor of the buildingInfo
- Publication number
- JP2763994B2 JP2763994B2 JP5022888A JP2288893A JP2763994B2 JP 2763994 B2 JP2763994 B2 JP 2763994B2 JP 5022888 A JP5022888 A JP 5022888A JP 2288893 A JP2288893 A JP 2288893A JP 2763994 B2 JP2763994 B2 JP 2763994B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- absorbing member
- sound absorbing
- sound
- sound insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Floor Finish (AREA)
- Building Environments (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建物の床部遮音構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation structure for a floor of a building.
【０００２】[0002]
【従来の技術】上記遮音構造の従来例として、例えば図
９に示すように、床板２０を下方から支持する複数本の
根太２１が梁材２２上に間隔をおいて配設され、上端部
が根太２１に固定された吊り木２３を介して天井板２４
が梁材の下方で懸垂され、この天井板２４の上面に吸音
部材２５が敷設されたものがある。2. Description of the Related Art As a conventional example of the above-mentioned sound insulation structure, as shown in FIG. 9, for example, a plurality of joists 21 for supporting a floor plate 20 from below are arranged at intervals on a beam member 22, and an upper end portion thereof is provided. Ceiling board 24 via suspension tree 23 fixed to joist 21
Is suspended below the beam, and a sound absorbing member 25 is laid on the upper surface of the ceiling plate 24.
【０００３】この遮音構造では、通常は中間部に防振ゴ
ム２６を有する吊り木２３を採用しており、重量床衝撃
についてはその防振ゴム２６付きの吊り木２３で、かつ
軽量床衝撃については吸音部材２５でこれを吸収させる
ようにしている（実願昭５９−１６９３８３号（実開昭
６１−８３７０９号）参照）。In this sound insulation structure, a hanging tree 23 having an anti-vibration rubber 26 in the middle portion is usually employed. For the heavy floor impact, the hanging tree 23 with the anti-vibration rubber 26 and the light floor impact are used. Is absorbed by the sound absorbing member 25 (see Japanese Utility Model Application Laid-Open No. 59-169383 (Japanese Utility Model Application Laid-Open No. 61-83709)).
【０００４】[0004]
【発明が解決しようとする課題】ところで、上記従来の
技術では、軽量床衝撃の吸収が不十分な場合には、吸音
部材25自体を厚くすることでこれに対処していた。しか
し、遮音効果が十分となる程度にまで吸音部材２５を厚
くすると、吸音部材２５の重量も大幅に増加し、それに
応じて吊り木２３の本数を増加しなければならないとい
う不都合が生じる。即ち、吊り木２３の本数が増える
と、今度は重量床衝撃が伝達されやすくなると共に、施
工コスト及び施工手間が増大することになるからであ
る。In the above-mentioned conventional technique, when the absorption of the lightweight floor impact is insufficient, the sound absorbing member 25 itself is made thick to cope with the problem. However, if the sound absorbing member 25 is made thick enough to provide a sufficient sound insulating effect, the weight of the sound absorbing member 25 also increases significantly, and the number of the hanging trees 23 must be increased accordingly. That is, when the number of the hanging trees 23 increases, the heavy floor impact is easily transmitted, and the construction cost and the construction labor increase.
【０００５】本発明は、かかる実情に鑑み、吊り木の本
数を増やすことなく、軽量床衝撃の遮音効果を大幅に増
大させることを目的とする。SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to significantly increase the sound insulation effect of a lightweight floor impact without increasing the number of hanging trees.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成すべく、
本発明が講じた技術的手段は、床板を下方から支持する
複数本の根太が梁材上に間隔をおいて配設され、上端部
が根太に固定された吊り木を介して天井板が前記梁材の
下方で懸垂され、この天井板の上面に吸音部材が敷設さ
れた建物の床部遮音構造において、前記根太の断面高さ
より薄い第二吸音部材が前記床板との間で空気層を介在
させるようにして当該各根太間に架設されている点にあ
る。In order to achieve the above object,
The technical means taken by the present invention is that a plurality of joists supporting the floor plate from below are arranged at intervals on the beam material, and the ceiling plate is connected to the ceiling plate via a hanging tree whose upper end is fixed to the joist. In a sound-absorbing structure for a floor portion of a building in which a sound-absorbing member is laid on an upper surface of a ceiling plate, the second sound-absorbing member thinner than the cross-sectional height of the joist has an air layer interposed between the floor plate and the floor plate. In that it is erected between the joists.
【０００７】[0007]
【作用】第二吸音部材は天井板上の（第一）吸音部材と
は別に各根太間に架設されているため、第二吸音部材の
自重を吊り木で支持する必要がない。また、第二吸音部
材は床板との間で空気層を介在させるようにして配置さ
れているため、床板に生じる衝撃が第二吸音部材に直接
作用することがない。Since the second sound absorbing member is provided between the joists separately from the (first) sound absorbing member on the ceiling plate, it is not necessary to support the weight of the second sound absorbing member with a hanging tree. Further, since the second sound absorbing member is disposed so as to interpose an air layer between the second sound absorbing member and the floor plate, an impact generated on the floor plate does not directly act on the second sound absorbing member.
【０００８】[0008]
【実施例】以下、図面に基づいて本発明の一実施例を詳
述する。図１乃至図３は、本実施例で採用した住宅建物
の床部遮音構造を示している。同図において、本実施例
に係る住宅建物は、Ｈ型鋼で例示される梁材１を骨格構
成部材として有する鉄骨造であり、この梁材１上には、
複数本の根太２が一定間隔をおいて配設され、根太２上
には合板製の床板３が敷設されている。An embodiment of the present invention will be described below in detail with reference to the drawings. 1 to 3 show a floor sound insulation structure of a residential building adopted in this embodiment. In the same figure, the residential building according to the present embodiment is a steel frame having a beam 1 exemplified by H-shaped steel as a skeletal component, and on this beam 1,
A plurality of joists 2 are arranged at regular intervals, and a plywood floor plate 3 is laid on the joists 2.
【０００９】根太２の側面には、下階の天井板４を支持
するための吊り木５が所定間隔おきに取り付けられてい
る。この吊り木５は、一対の上下角材６，７間に防振ゴ
ム８を介装してなり、防振ゴム８は、取付プレート９を
介して上下角材６，７の側面にそれぞれ固定されてい
る。上角材６の上端部は根太２の側面に釘止めされ、下
角材７の下端部は天井板４の下地骨となる野縁１０の側
面に釘止めされている。On the side surface of the joist 2, hanging trees 5 for supporting a ceiling plate 4 on the lower floor are attached at predetermined intervals. The hanging tree 5 is provided with a vibration isolating rubber 8 interposed between a pair of upper and lower square members 6 and 7. I have. The upper end of the upper timber 6 is nailed to the side surface of the joist 2, and the lower end of the lower timber 7 is nailed to the side surface of a ridge 10 serving as a base bone of the ceiling plate 4.
【００１０】従って、天井板４は当該防振ゴム８付きの
吊り木５を介して梁材１の下方で懸垂状に取り付けられ
ていて、これにより、上階の床板３で生じる重量床衝撃
が下階に伝達されるのを防止している。前記天井板４の
上面には、ロックウール又はグラスウール等よりなる第
一吸音部材１１が天井板４の上面全面を被覆するように
敷設されていて、この第一吸音部材１１は、主として上
階の床板３で生じる軽量床衝撃が下階に伝達されるのを
防止するものである。Therefore, the ceiling panel 4 is suspended below the beam 1 via the suspension tree 5 with the rubber cushion 8 so that the heavy floor impact generated on the upper floor panel 3 is reduced. Prevents transmission to lower floors. On the upper surface of the ceiling plate 4, a first sound absorbing member 11 made of rock wool or glass wool or the like is laid so as to cover the entire upper surface of the ceiling plate 4, and the first sound absorbing member 11 is mainly provided on the upper floor. The purpose is to prevent the lightweight floor impact generated by the floor panel 3 from being transmitted to the lower floor.
【００１１】本実施例では、床板３で生じる軽量床衝撃
をさらに吸収すべく、上記第一吸音部材１１とは別に各
根太２間に第二吸音部材１２を設けている。この第二吸
音部材１２は、ロックウール又はグラスウール等よりな
る点で第一吸音部材１１と同様であるが、その下面にメ
ッシュ状の樹脂板等よりなる固いシート体１３を備え、
幅方向両端を単純支持してもその形状を保持できるよう
になっていて、前記根太２の断面高さより薄く形成され
ている。In this embodiment, a second sound absorbing member 12 is provided between the joists 2 separately from the first sound absorbing member 11 in order to further absorb the lightweight floor impact generated by the floor panel 3. The second sound absorbing member 12 is similar to the first sound absorbing member 11 in that it is made of rock wool or glass wool, but has a rigid sheet body 13 made of a mesh-like resin plate or the like on the lower surface thereof.
The shape can be maintained even if the both ends in the width direction are simply supported, and are formed thinner than the sectional height of the joist 2.
【００１２】根太２の下面には、桟木１４が根太２と直
交状に取り付けられ、上記第二吸音部材１２は、この桟
木１４上に載置されることにより、床板３との間で空気
層１５を介在させるようにして各根太２間に架設されて
いる。このように、本実施例では、第二吸音部材１２を
第一吸音部材１１とは別に各根太２間に架設しているた
め、第二吸音部材１２の自重を吊り木５で支持する必要
がない。従って、軽量床衝撃の遮音を向上させるに際し
て、吊り木５の本数を増加する必要がなく重量床衝撃の
増大や施工手間の増大を招来することもない。On the underside of the joist 2, a crosspiece 14 is mounted orthogonally to the joist 2, and the second sound absorbing member 12 is placed on the crosspiece 14, whereby an air space is formed between the joist 2 and the floor plate 3. It is installed between the joists 2 so as to interpose 15. As described above, in the present embodiment, since the second sound absorbing member 12 is provided between the joists 2 separately from the first sound absorbing member 11, it is necessary to support the weight of the second sound absorbing member 12 with the hanging tree 5. Absent. Therefore, in order to improve the sound insulation of the lightweight floor impact, it is not necessary to increase the number of the hanging trees 5, and it is not necessary to increase the heavy floor impact and the construction labor.
【００１３】また、第二吸音部材１２は床板３との間で
空気層１５を介在させて配置されていてので、床板３に
生じた衝撃は第二吸音部材１２に直接作用しない。従っ
て、床板３と第二吸音部材１２との間の空気層１５がク
ッション的に作用し、第二吸音部材１２を床板３に接し
て設けた場合に比べて遮音効果をより向上することがで
きる。Further, since the second sound absorbing member 12 is arranged with the air layer 15 interposed between the second sound absorbing member 12 and the floor plate 3, the impact generated on the floor plate 3 does not directly act on the second sound absorbing member 12. Therefore, the air layer 15 between the floor plate 3 and the second sound absorbing member 12 acts as a cushion, and the sound insulation effect can be further improved as compared with the case where the second sound absorbing member 12 is provided in contact with the floor plate 3. .
【００１４】更に、本実施例では、第一吸音部材１１と
第二吸音部材１２との間にも空気層１６が形成されるた
め、衝撃発生源である床板３とその下方の天井板４との
間に、吸音部材１１，１２と空気層１５，１６という音
波伝達特性の異なるものが交互に積層された構造とな
り、この点からも軽量床衝撃に対する遮音効果をより向
上することができる。Further, in the present embodiment, since the air layer 16 is also formed between the first sound absorbing member 11 and the second sound absorbing member 12, the floor plate 3 which is a source of impact and the ceiling plate 4 therebelow are connected. Between them, the sound absorbing members 11 and 12 and the air layers 15 and 16 having different sound transmission characteristics are alternately laminated, and from this point, the sound insulation effect against a lightweight floor impact can be further improved.
【００１５】図４乃至図６は、上記遮音構造についての
改善量の実験結果を示している。なお、この場合、床板
３の厚さを２１mm、天井板４の厚さを９mm、根太２の断
面高さを１３３mm、第一遮音部材１１の厚さを１００m
m、第二遮音部材１２の厚さを５０mm、空気層１５の厚
さを８０mmとして実験を行っている。この結果からわか
るように、軽量床衝撃音レベルでは２dB〜１２dB、重量
床衝撃音レベルでは２dB〜１８dB、上下階の室間音圧レ
ベル差については１dB〜１５dB、それぞれ遮音特性が改
善されている。FIGS. 4 to 6 show the results of experiments on the amount of improvement in the sound insulation structure. In this case, the thickness of the floor panel 3 is 21 mm, the thickness of the ceiling panel 4 is 9 mm, the sectional height of the joist 2 is 133 mm, and the thickness of the first sound insulating member 11 is 100 m.
m, the thickness of the second sound insulation member 12 was 50 mm, and the thickness of the air layer 15 was 80 mm. As can be seen from the results, the sound insulation characteristics are improved for the light floor impact sound level of 2 dB to 12 dB, for the heavy floor impact sound level of 2 dB to 18 dB, and for the sound pressure level difference between the upper and lower floors of the room, 1 dB to 15 dB. .
【００１６】なお、本発明は上記実施例に限定されるも
のではなく、例えば図７又は図８に示すように、第二吸
音部材１２は、根太２の側面に取り付けた桟木１７又は
金具１８で支持するようにしてもよい。The present invention is not limited to the above embodiment. For example, as shown in FIG. 7 or FIG. 8, the second sound absorbing member 12 is formed by a crosspiece 17 or a metal fitting 18 attached to the side of the joist 2. It may be supported.
【００１７】[0017]
【発明の効果】以上説明したように、本発明によれば、
根太の断面高さより薄い第二吸音部材が床板との間で空
気層を介在させるようにして各根太間に架設されている
ので、次の効果が得られる。 （１）第二吸音部材は天井板上の（第一）吸音部材とは
別に各根太間に架設され、第二吸音部材の自重を吊り木
で支持する必要がないので、吊り木の本数が増加するこ
とに伴う重量床衝撃の増大や施工手間の増大を招来する
ことなく、軽量床衝撃の遮音効果を向上することができ
る。 （２）また、第二吸音部材は床板との間で空気層を介在
させて配置されており、床板に生じた衝撃は第二吸音部
材に直接作用しない。従って、第二吸音部材を床板に接
して設けた場合に比べて遮音効果をより向上することが
できる。As described above, according to the present invention,
Since the second sound absorbing member thinner than the cross-section height of the joists is laid between the joists so as to interpose an air layer between the joists, the following effects can be obtained. (1) The second sound absorbing member is installed between the joists separately from the (first) sound absorbing member on the ceiling plate, and there is no need to support the weight of the second sound absorbing member with a hanging tree. The sound insulation effect of the lightweight floor impact can be improved without causing an increase in the weight floor impact and an increase in the construction labor due to the increase. (2) Also, the second sound absorbing member is disposed with an air layer interposed between the floor plate and the impact generated on the floor plate does not directly act on the second sound absorbing member. Therefore, the sound insulation effect can be further improved as compared with the case where the second sound absorbing member is provided in contact with the floor plate.
【図１】本発明の一実施例に係る床部遮音構造の断面図
である。FIG. 1 is a sectional view of a floor sound insulation structure according to an embodiment of the present invention.
【図２】同一部斜視図である。FIG. 2 is a perspective view of the same part.
【図３】同全体斜視図である。FIG. 3 is an overall perspective view of the same.
【図４】軽量床衝撃に対する遮音特性の改善量を示すグ
ラフである。FIG. 4 is a graph showing the amount of improvement in sound insulation characteristics with respect to a lightweight floor impact.
【図５】重量床衝撃に対する遮音特性の改善量を示すグ
ラフである。FIG. 5 is a graph showing the amount of improvement in sound insulation characteristics with respect to heavy floor impact.
【図６】音圧レベル差の改善量を示すグラフである。FIG. 6 is a graph showing an improvement amount of a sound pressure level difference.
【図７】第二遮音部材の他の取付手段を示す斜視図であ
る。FIG. 7 is a perspective view showing another attaching means of the second sound insulating member.
【図８】同斜視図である。FIG. 8 is a perspective view of the same.
【図９】従来の床部遮音構造の断面図である。FIG. 9 is a cross-sectional view of a conventional floor sound insulation structure.
１ 梁材 ２ 根太 ３ 床板 ４ 天井板 １１ 第一吸音部材 １２ 第二吸音部材 １５ 空気層 REFERENCE SIGNS LIST 1 beam member 2 joist 3 floor plate 4 ceiling plate 11 first sound absorbing member 12 second sound absorbing member 15 air space
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E04B 5/43 E04B 1/98──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) E04B 5/43 E04B 1/98
Claims (1)
根太（２）が梁材（１）上に間隔をおいて配設され、上
端部が根太（２）に固定された吊り木（５）を介して天
井板（４）が前記梁材（１）の下方で懸垂され、この天
井板（４）の上面に吸音部材（１１）が敷設された建物
の床部遮音構造において、 前記根太（２）の断面高さより薄い第二吸音部材（１
２）が前記床板（３）との間で空気層（１５）を介在さ
せるようにして当該各根太（２）間に架設されているこ
とを特徴とする建物の床部遮音構造。A plurality of joists (2) for supporting a floor panel (3) from below are arranged at intervals on a beam (1), and an upper end thereof is fixed to the joists (2). A ceiling panel (4) is suspended below the beam (1) through (5), and a sound absorbing member (11) is laid on the upper surface of the ceiling panel (4). The second sound absorbing member (1) thinner than the sectional height of the joist (2)
A floor sound insulation structure for a building, wherein 2) is installed between the joists (2) with an air space (15) interposed between the floor plates (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5022888A JP2763994B2 (en) | 1993-02-10 | 1993-02-10 | Sound insulation structure on the floor of the building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5022888A JP2763994B2 (en) | 1993-02-10 | 1993-02-10 | Sound insulation structure on the floor of the building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06235242A JPH06235242A (en) | 1994-08-23 |
| JP2763994B2 true JP2763994B2 (en) | 1998-06-11 |
Family
ID=12095215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5022888A Expired - Lifetime JP2763994B2 (en) | 1993-02-10 | 1993-02-10 | Sound insulation structure on the floor of the building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2763994B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0882035A (en) * | 1994-09-06 | 1996-03-26 | Kaneshin:Kk | Ceiling device between storeys in wooden dwelling house |
| JP2750095B2 (en) * | 1995-04-28 | 1998-05-13 | ナショナル住宅産業株式会社 | Sound insulation floor structure |
| JP2006291654A (en) * | 2005-04-14 | 2006-10-26 | Mitsubishi Estate Home Co Ltd | Installing structure, connecting structure and connecting member for air conditioning duct |
-
1993
- 1993-02-10 JP JP5022888A patent/JP2763994B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06235242A (en) | 1994-08-23 |
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