JP2004084216A - Partition wall - Google Patents

Partition wall Download PDF

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Publication number
JP2004084216A
JP2004084216A JP2002244205A JP2002244205A JP2004084216A JP 2004084216 A JP2004084216 A JP 2004084216A JP 2002244205 A JP2002244205 A JP 2002244205A JP 2002244205 A JP2002244205 A JP 2002244205A JP 2004084216 A JP2004084216 A JP 2004084216A
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Japan
Prior art keywords
partition wall
sound
stud
studs
holes
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JP2002244205A
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Japanese (ja)
Inventor
Takashi Sawara
佐原 敬
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Priority to JP2002244205A priority Critical patent/JP2004084216A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a partition wall which is excellent in sound insulating properties even when a square cylindrical metallic section which is generally available as a stud is used. <P>SOLUTION: The partition wall is constructed by arranging face plates on both side surfaces of the studs. In the partition wall, the studs are each formed of the square cylindrical metallic section, and one of side surfaces of each stud, on which the face plates are not placed, has holes having a diameter of 10 to 60 mm with a pitch of 100 to 2000 mm. The holes are formed on the same side of the metallic sections, respectively. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、建築物の内部における仕切り壁に関し、簡易な構成で低周波帯域の遮音性能を向上したものである。
【0002】
【従来の技術】
従来、住宅や事務所等の間仕切り壁としては、一定間隔毎に間柱を配置し、この間柱の両側面に合板や石膏ボード等の面材を張りつけたものが多い。
しかし、間柱に面材を張りつけただけの間仕切り壁で、遮音性(防音性)を付与しようとするには、面材の質量の大きなものを使用したり、面材間の空間を遮音材料で充填したり、面材間の壁厚みを厚くして空間を多くとったりすることが必要であった。
このように特殊な面材や遮音材料を必要とするものでは、余分な材料が必要でコスト高となる問題がある。また、マンションなど限られた空間に間仕切り壁を設けなければならない状況では、壁厚さを極力薄くしたいという要求が強く、遮音性能を高めるために壁厚さを厚くすることは適当な手段ではないという問題があった。
【0003】
このような問題を解消する間仕切り壁として、特開平7−42269号公報には、一定間隔毎に配置された間柱の両側に一対の面材を固定してなる間仕切り壁において、間柱が、緩衝材を挟持した長尺材であることを特徴とする防音間仕切り壁が提案されている。
緩衝材を挟持した長尺材からなる間柱としては、鋼製形鋼、樹脂製の押出棒状材、無機ボード、不燃軽量複合板、木質積層板等の長尺材と比較的弾性の低い壁面の振動を伝えにくい不織布等の繊維素材からなる緩衝材とを使用して、天井もしくは床の桟材と結合する長尺材(内芯材)を挟んで、緩衝材、長尺材(面材を固定する外芯材)からなるものや、面材を固定する外芯材で緩衝材を挟んだだけの構造のもの等が記載されている。
そして、間柱に不織布を用いたため、空気音による面材の振動を裏面材へ直接伝えることがないので、比較的薄い壁でも高い防音性能を有することができるとの効果が記載されている。
【0004】
【発明が解決しようとする課題】
しかし、特開平7−42269号公報に記載の間仕切り壁においては、間柱として長尺材の間に不織布等の繊維素材からなる緩衝材を挟んでなる構造のものが必要であり、間柱として緩衝材を必要とするため材料費がかさむと共に、長尺材と緩衝材とを積層一体化するため余分な製造工程が必要になり間柱のコストが高くつくという問題がある。
また、面材と固定された間柱との張りつけは、緩衝材を介して取り付けられることになるので、面材に力が掛かると緩衝材の弾性の範囲で壁面が移動することになり、壁としての安定感に欠けるという問題もあった。
【0005】
そこで、本発明は、これらの問題点を解消し、間柱として汎用されている角筒状の金属形材を使用しても遮音性に優れた間仕切り壁を提供することを目的とする。
【0006】
【課題を解決するための手段】
請求項1記載の発明である間仕切り壁は、間柱の両側面に面材が設けられてなる間仕切り壁において、間柱が角筒状の金属形材で形成され、間柱の面材が設けられていない面の同一側の一面に、口径10〜60mmの孔が100〜2000mmピッチで設けられていることを特徴とするものである。
【0007】
(作用)
請求項1記載の間仕切り壁においては、間仕切り壁の一方の部屋で発生する音声や物音は、面材から間仕切り壁の内部空間に伝わるが、角筒状の金属形材からなる間柱の内部空間に面している同一側の一面には、口径10〜60mmの孔が100〜2000mmピッチで設けられているので、音声や物音は間仕切り壁の内部空間で間柱の孔に入射して共鳴を起こし、吸音され、遮音性能が向上する。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
図1は本発明の間仕切り壁が一部施工された状態を示す斜視図である。
図で1は天井桟、2は床桟で、共に軽量みぞ形鋼が使用される。これら天井桟1および床桟2は、間仕切りをする場所の天井および床に沿ってねじ止め、溶接等によって固定されている。
【0009】
この天井桟1および床桟2の間に、所定の間隔をおいて間柱3が固定されている。間柱3は角筒状の金属形材で、上下端部を天井桟1および床桟2のみぞに嵌合して挟持されている。この間柱3は従来間仕切り壁の間柱として使用されているものと同様の断面四角形の鋼またはアルミニウム等の鉄製または非鉄製の金属形材が使用される。
間柱3となる金属形材の寸法は、間仕切り壁の壁厚さ、面材の厚さを考慮して適当な寸法のものが使用される。
また、隣り合う間柱3の間隔は、間仕切り壁として要求される強度および使用する面材の強度を勘案して、100〜1000mm程度の範囲で決められる。
【0010】
この間柱3の両側面には、面材4が取付け固定されている。面材4はねじ止めまたは接着剤による接着等で間柱3の側面に取付け固定されている。
この面材4としては、石膏ボード、ケイ酸カルシウム板、合板などの木質板材、不燃軽量複合板等が使用できる。
面材4の表面には、壁紙または化粧クロス等を張りつけて仕上げられている。
【0011】
そして、本発明においては、間柱3の面材4が設けられていない面の同一側の一面に、口径10〜60mmの孔31が100〜2000mmピッチで設けられている。
孔31の口径および孔31を複数個穿孔する場合の孔31間のピッチは、テレビやラジオの音声、話し声、物音等の主たる振動数帯域である125〜250Hzにおける遮音性能の向上が顕著な範囲を実験的に確認して決められている。
孔31は天井桟1および床桟2との距離が2000mm以下であれば、1個のみ設けられているものであってもよい。
【0012】
孔31の口径が10mmより小さかったり、60mmより大きかったりすると、125〜250Hzの帯域における遮音性能の向上が少ない。
また、孔31が複数設けられる場合、孔と孔との間のピッチが小さくなると遮音性能が低下するので、100mmより大きな間隔をとるのが好ましい。
また、孔31の大きさにかかわらず、各間柱3には1個以上の孔31が設けられている。また、間仕切り壁の高さには限度があるので、孔31と31とのピッチ(間隔)は床面から天井面までの高さの約2000mm程度より小さくなる。
【0013】
本発明は、金属角筒体に孔を設けることにより、特定の周波数の音波が入射すると、共鳴を起こして吸音され、音波が減衰することを応用したもので、減衰する周波数(f)は次の式(1)で表される。
f=c(P/(t+0.8φ)L)1/2 /2π ・・・・(1)
式(1)で、cは音の速度、Pは孔の設けられる角筒体の面における孔の開口率、tは角筒体の肉厚、φは孔の直径、Lは空気層の厚みで孔の設けられている面に垂直な角筒の内法である。
この式(1)からも部屋間の間仕切りとして遮音性能が要求される125〜250Hzの振動数帯域の音波と共鳴させ、遮音性能を向上させるためには、口径10〜60mm、ピッチを100〜2000mmとすればよいことが裏付けられる。
【0014】
本発明で特に遮音効果の大なる範囲は、孔31の口径が20〜50mmで、孔31のピッチが500〜1000mmで設けられている場合であって、125〜250Hzの振動数帯域の音波を4dB程度低減する遮音効果が得られる。
【0015】
この範囲内で、孔31の口径を小口径とすると、共鳴周波数は低周波側にずれていくので低周波側の遮音性能が向上する。また、孔31間のピッチを小間隔とすると高周波側にずれていくので高周波側の遮音性能が向上する。
しかし、遮音性能は、孔31の口径を大きくし、ピッチを小さくし、孔31の開口率を大きくすると低下する傾向があるので、孔31の口径とピッチとは、上記の範囲が遮音性能の面から適当である。
【0016】
次に、実施例および比較例を示す。
(実施例1)
図1において、天井桟1および床桟2として、幅67mm、高さ40mm、肉厚0.5mmの軽量みぞ形鋼を使用し、間柱3として、45mm×65mm角、肉厚0.5mmの軽量角形鋼を使用し、間柱間隔300mmで、天井桟1および床桟2のみぞに間柱3を嵌め込んで接合されている。床面から天井面までの高さは1820mmとした。
間柱3の両側面には面材4として石膏ボード(幅910mm、長さ1820mm、厚さ12.5mm)が隙間なく配置され、接着剤で接着して取付けられている。
間柱3、3、・・・の面材4が取付けられていない面の同一側の一面には、口径40mmの孔31が上下2ケ所に設けられている。この孔31、31は床面から孔31の中心までの高さが610mmと1220mmで間柱3の面の中間に設けられている。
【0017】
そして、この間仕切り壁の遮音性能をJIS−A1416(1994)の「実験室における音響透過損失測定方法」に準拠させた音響計測室に設置して測定した。間仕切り壁は、上下は天井桟1と床桟2、幅は間柱3の4本分の範囲のものを作って測定した。
間仕切り壁は残響室壁面に直接固定せず、間に粘土を詰めて固定した。音源の音圧レベルは、110dBとし、ノイズジェネレーター(RION社製、型式「SF−05」)を用いた。音圧レベルの測定には、オクターブバンド精密騒音計(RION社製、型式「NA−29」)を使用した。
まず、音源側の音圧レベルを測定し、その後、透過側の音圧レベルを測定した。周波数125Hzおよび250Hzにおける音源側と透過側の音圧レベル差を求めたところ、周波数125Hzでは19dB、周波数250Hzでは20dBであった。
【0018】
(実施例2)
実施例1において、間柱3に設ける孔31の数と位置を表1に示すように変更した以外は実施例1と同様にして間仕切り壁を作成した。実施例1と同様にして音圧レベル差を測定した結果は表1に示す通りであった。
【0019】
(実施例3)
実施例1において、間柱3に設ける孔31の口径を表1に示すように変更した以外は実施例1と同様にして間仕切り壁を作成した。実施例1と同様にして音圧レベル差を測定した結果は表1に示す通りであった。
【0020】
(実施例4)
実施例1において、天井桟1、床桟2および間柱3の寸法を表1に示すように変更した以外は実施例1と同様にして間仕切り壁を作成した。実施例1と同様にして音圧レベル差を測定した結果は表1に示す通りであった。
【0021】
(比較例1)
実施例1において、間柱3に孔31を設けないように変更した以外は実施例1と同様にして間仕切り壁を作成した。実施例1と同様にして音圧レベル差を測定した結果は表1に示す通りであった。
【0022】
(比較例2)
実施例4において、間柱3に孔31を設けないように変更した以外は実施例4と同様にして間仕切り壁を作成した。実施例1と同様にして音圧レベル差を測定した結果は表1に示す通りであった。
【0023】
【表1】

Figure 2004084216
【0024】
表1に示すように、本発明の間柱となる角筒状の金属形材の面材が設けられていない面の同一側の一面に口径20mmおよび40mmの孔が610mmピッチで2個設けられている場合(実施例1、3、4)および1箇のみ設けられている場合(実施例2)のいずれの間仕切り壁においても、孔の設けられていない間仕切り壁に較べて、テレビやラジオの音声、話し声、物音等の主たる振動数帯域である125〜250Hzにおける音圧レベル差が3〜5dB改善されている。
【0025】
この3〜4dBの音圧レベル差は、10メートル離れて聴く音(声)と20メートル離れて聴く音(声)との差に相当するもので、間仕切り壁の遮音性能の向上が顕著である。
【0026】
【発明の効果】
本発明の間仕切り壁は上述した通りに構成されており、間柱の両側面に面材が設けられてなる間仕切り壁において、間柱が角筒状の金属形材で形成され、間柱の面材が設けられていない面の同一側の一面に、口径10〜60mmの孔が100〜2000mmピッチで設けられていることを特徴とするものであり、テレビやラジオの音声、話し声、物音等の主たる振動数帯域である125〜250Hzにおける音圧レベル差の改善ができ、間仕切り壁として遮音性能の優れたものとなる。
【0027】
また、従来、間仕切り壁の間柱として使用されていた軽量角形鋼の、面材の設けられていない面の同一側の一面に円孔を穿設するだけの簡単な加工で、加工に手間をとらず、付加する材料も不要なため、コストアップ無く遮音性能を改善することができる。
また、面材は間柱に固定されていても、遮音性能が改善されるため、間仕切り壁はしっかりと固定され、壁面としての安定感も損なわれることがない。
【図面の簡単な説明】
【図1】図1は本発明の間仕切り壁を一部が施工された状態で示す斜視図である。
【符号の説明】
1  天井桟
2  床桟
3  間柱
31 孔
4  面材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a partition wall inside a building, and has improved sound insulation performance in a low frequency band with a simple configuration.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as partition walls for houses and offices, studs are arranged at regular intervals, and face materials such as plywood and gypsum board are stuck to both side surfaces of the studs in many cases.
However, in order to provide sound insulation (sound insulation) with a partition wall where the surface material is just attached to the studs, use a material with a large mass of the surface material, or use a sound insulation material to fill the space between the surface materials. It was necessary to fill the space or to increase the wall thickness between the face materials to increase the space.
In the case where a special surface material or a sound insulating material is required as described above, there is a problem that an extra material is required and the cost is increased. Also, in situations where partition walls must be provided in confined spaces such as condominiums, there is a strong demand to reduce the wall thickness as much as possible, and increasing the wall thickness to improve sound insulation performance is not an appropriate means. There was a problem.
[0003]
As a partition wall for solving such a problem, Japanese Patent Laid-Open No. 7-42269 discloses a partition wall in which a pair of face members are fixed to both sides of a stud arranged at regular intervals, and the stud is a cushioning material. There has been proposed a soundproof partition wall characterized by being a long material sandwiching the above.
Studs made of long material with cushioning material interposed between long members such as steel shaped steel, resin extruded rods, inorganic boards, non-combustible lightweight composite boards, wood laminates, and relatively low elastic wall surfaces Using a cushioning material made of fiber material such as non-woven fabric that is difficult to transmit vibration, sandwiching a long material (inner core material) that is connected to the ceiling or floor beam, And a structure in which a cushioning material is simply sandwiched between outer core materials for fixing face materials.
In addition, since the non-woven fabric is used for the studs, the vibration of the face material due to the air noise is not directly transmitted to the back material, so that the effect that high soundproof performance can be achieved even with a relatively thin wall is described.
[0004]
[Problems to be solved by the invention]
However, the partition wall described in Japanese Patent Application Laid-Open No. 7-42269 requires a structure in which a cushion made of a fiber material such as a nonwoven fabric is sandwiched between long members as a pillar. In addition to this, there is a problem in that the material cost increases, and an extra manufacturing step is required for laminating and integrating the long material and the cushioning material, thereby increasing the cost of the stud.
In addition, since the surface material and the fixed stud are attached via a cushioning material, if a force is applied to the surface material, the wall surface will move within the elastic range of the cushioning material, and as a wall There was also a problem of lack of stability.
[0005]
Therefore, an object of the present invention is to solve these problems and to provide a partition wall that is excellent in sound insulation even when a rectangular tube-shaped metal profile commonly used as a stud is used.
[0006]
[Means for Solving the Problems]
In the partition wall according to the first aspect of the present invention, in the partition wall in which face materials are provided on both side surfaces of the studs, the studs are formed of a rectangular cylindrical metal shape, and no face material of the stud is provided. A hole having a diameter of 10 to 60 mm is provided at a pitch of 100 to 2000 mm on one surface of the same side of the surface.
[0007]
(Action)
In the partition wall according to claim 1, the sound and the sound generated in one room of the partition wall are transmitted from the surface material to the internal space of the partition wall, but are transmitted to the internal space of the square pillar-shaped metal pillar. On one surface facing the same side, holes having a diameter of 10 to 60 mm are provided at a pitch of 100 to 2000 mm, so that sound and noise enter the holes of the studs in the internal space of the partition wall and cause resonance, Sound is absorbed and the sound insulation performance is improved.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a state in which a partition wall of the present invention is partially constructed.
In the figure, 1 is a ceiling bar, 2 is a floor bar, and both are made of lightweight grooved steel. The ceiling beam 1 and the floor beam 2 are fixed by screws, welding, or the like along the ceiling and floor of the partition.
[0009]
A stud 3 is fixed between the ceiling beam 1 and the floor beam 2 at a predetermined interval. The stud 3 is a rectangular tube-shaped metal profile, and its upper and lower ends are fitted and held in the grooves of the ceiling bar 1 and the floor bar 2. The stud 3 is made of iron or non-ferrous metal such as steel or aluminum having a square cross section similar to that used as a stud of a conventional partition wall.
As for the size of the metal profile to be the stud 3, an appropriate size is used in consideration of the wall thickness of the partition wall and the thickness of the face material.
The interval between the adjacent studs 3 is determined in the range of about 100 to 1000 mm in consideration of the strength required for the partition wall and the strength of the face material to be used.
[0010]
Face members 4 are attached and fixed to both side surfaces of the stud 3. The face material 4 is attached and fixed to the side surface of the stud 3 by screwing or bonding with an adhesive.
As the face material 4, a gypsum board, a calcium silicate board, a wood board such as plywood, a noncombustible lightweight composite board, or the like can be used.
The surface of the face material 4 is finished by attaching wallpaper or a decorative cloth or the like.
[0011]
In the present invention, holes 31 having a diameter of 10 to 60 mm are provided at a pitch of 100 to 2000 mm on one surface of the stud 3 on which the face material 4 is not provided.
The diameter of the holes 31 and the pitch between the holes 31 when a plurality of holes 31 are formed are within a range where the improvement of the sound insulation performance at 125 to 250 Hz, which is the main frequency band of the sound of television and radio, speech, and body sounds, is remarkable. Has been determined experimentally.
As long as the distance between the ceiling bar 1 and the floor bar 2 is 2000 mm or less, only one hole 31 may be provided.
[0012]
When the diameter of the hole 31 is smaller than 10 mm or larger than 60 mm, the improvement of the sound insulation performance in the band of 125 to 250 Hz is small.
When a plurality of holes 31 are provided, if the pitch between the holes is small, the sound insulation performance is reduced. Therefore, it is preferable to provide an interval larger than 100 mm.
Also, regardless of the size of the holes 31, each stud 3 is provided with one or more holes 31. In addition, since the height of the partition wall is limited, the pitch (interval) between the holes 31 is smaller than the height from the floor surface to the ceiling surface of about 2000 mm.
[0013]
The present invention is based on the application of the fact that when a sound wave of a specific frequency is incident, a sound is attenuated by resonance, and the sound wave is attenuated. Equation (1).
f = c (P / (t + 0.8φ) L) 1/2 / 2π (1)
In the formula (1), c is the speed of sound, P is the aperture ratio of the hole in the surface of the rectangular cylinder provided with the hole, t is the thickness of the rectangular cylinder, φ is the diameter of the hole, and L is the thickness of the air layer. Is the internal method of a rectangular cylinder perpendicular to the plane where the holes are provided.
From this equation (1), in order to resonate with sound waves in the frequency band of 125 to 250 Hz, which are required to have sound insulation performance as a partition between rooms, and to improve the sound insulation performance, the diameter is 10 to 60 mm, and the pitch is 100 to 2000 mm. That should be supported.
[0014]
In the present invention, a particularly large range of the sound insulating effect is a case where the diameter of the hole 31 is 20 to 50 mm, and the pitch of the hole 31 is 500 to 1000 mm, and a sound wave having a frequency band of 125 to 250 Hz is generated. A sound insulation effect of reducing about 4 dB is obtained.
[0015]
If the diameter of the hole 31 is small within this range, the resonance frequency shifts to the low frequency side, so that the sound insulation performance on the low frequency side is improved. If the pitch between the holes 31 is small, the pitch shifts to the high frequency side, so that the sound insulation performance on the high frequency side is improved.
However, the sound insulation performance tends to decrease when the diameter of the hole 31 is increased, the pitch is reduced, and the aperture ratio of the hole 31 is increased. Therefore, the diameter and the pitch of the hole 31 are within the above range of the sound insulation performance. Appropriate from the aspect.
[0016]
Next, examples and comparative examples will be described.
(Example 1)
In FIG. 1, a lightweight groove steel having a width of 67 mm, a height of 40 mm, and a thickness of 0.5 mm is used as the ceiling bar 1 and the floor bar 2, and a 45 mm × 65 mm square, 0.5 mm wall thickness is used as the stud 3. Square steel is used, and the studs 3 are fitted into the grooves of the ceiling bar 1 and the floor bar 2 at a stud spacing of 300 mm and joined. The height from the floor surface to the ceiling surface was 1,820 mm.
A gypsum board (910 mm in width, 1820 mm in length, 12.5 mm in thickness) is disposed on both sides of the stud 3 as a face material 4 without gaps, and is attached with an adhesive.
On the same side of the surface of the studs 3, 3,... To which the surface material 4 is not attached, holes 31 having a diameter of 40 mm are provided at two upper and lower positions. The holes 31, 31 have heights from the floor surface to the center of the hole 31 of 610 mm and 1220 mm, and are provided in the middle of the surface of the stud 3.
[0017]
Then, the sound insulation performance of this partition wall was measured by installing it in an acoustic measurement room compliant with JIS-A1416 (1994) “Method of measuring sound transmission loss in laboratory”. The partition wall was measured by making up and down the ceiling bar 1 and the floor bar 2 and the width of four studs 3.
The partition wall was not fixed directly to the wall of the reverberation room, but was filled with clay and fixed. The sound pressure level of the sound source was 110 dB, and a noise generator (manufactured by RION, model “SF-05”) was used. For the measurement of the sound pressure level, an octave band precision sound level meter (model “NA-29” manufactured by RION) was used.
First, the sound pressure level on the sound source side was measured, and then the sound pressure level on the transmission side was measured. The sound pressure level difference between the sound source side and the transmission side at the frequencies of 125 Hz and 250 Hz was 19 dB at the frequency of 125 Hz and 20 dB at the frequency of 250 Hz.
[0018]
(Example 2)
In Example 1, a partition wall was created in the same manner as in Example 1 except that the number and positions of the holes 31 provided in the studs 3 were changed as shown in Table 1. The results of measuring the sound pressure level difference in the same manner as in Example 1 are as shown in Table 1.
[0019]
(Example 3)
In Example 1, a partition wall was created in the same manner as in Example 1 except that the diameter of the hole 31 provided in the stud 3 was changed as shown in Table 1. The results of measuring the sound pressure level difference in the same manner as in Example 1 are as shown in Table 1.
[0020]
(Example 4)
A partition wall was prepared in the same manner as in Example 1 except that the dimensions of the ceiling bar 1, the floor bar 2 and the stud 3 were changed as shown in Table 1. The results of measuring the sound pressure level difference in the same manner as in Example 1 are as shown in Table 1.
[0021]
(Comparative Example 1)
In Example 1, a partition wall was created in the same manner as in Example 1 except that the holes 31 were not provided in the studs 3. The results of measuring the sound pressure level difference in the same manner as in Example 1 are as shown in Table 1.
[0022]
(Comparative Example 2)
In Example 4, a partition wall was formed in the same manner as in Example 4 except that the holes 31 were not provided in the studs 3. The results of measuring the sound pressure level difference in the same manner as in Example 1 are as shown in Table 1.
[0023]
[Table 1]
Figure 2004084216
[0024]
As shown in Table 1, two holes having a diameter of 20 mm and 40 mm are provided at a pitch of 610 mm on one surface of the same side of the surface of the rectangular tubular metal profile serving as a pillar of the present invention where the surface material is not provided. In any of the cases where the partition is provided (Examples 1, 3, 4) and where only one is provided (Example 2), the sound of television and radio is greater than that of the partition without holes. The sound pressure level difference at 125 to 250 Hz, which is the main frequency band of speech, noise, etc., is improved by 3 to 5 dB.
[0025]
The sound pressure level difference of 3 to 4 dB corresponds to the difference between the sound (voice) heard at a distance of 10 meters and the sound (voice) heard at a distance of 20 meters, and the sound insulation performance of the partition wall is remarkably improved. .
[0026]
【The invention's effect】
The partition wall of the present invention is configured as described above, and in a partition wall in which face materials are provided on both side surfaces of the studs, the studs are formed of a rectangular cylindrical metal shape, and the face materials of the studs are provided. A hole having a diameter of 10 to 60 mm is provided at a pitch of 100 to 2000 mm on one side of the same side of the non-exposed surface. The sound pressure level difference in the band of 125 to 250 Hz can be improved, and the partition wall has excellent sound insulation performance.
[0027]
In addition, the simple work of drilling a circular hole on one side of the same side of the surface on which no face material is provided of lightweight square steel, which was conventionally used as a stud of the partition wall, saves time and effort in processing. In addition, since no additional material is required, the sound insulation performance can be improved without increasing the cost.
Even if the face material is fixed to the stud, the sound insulation performance is improved, so that the partition wall is firmly fixed, and the sense of stability as the wall surface is not impaired.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a partition wall of the present invention in a state where a part of the partition wall is constructed.
[Explanation of symbols]
1 ceiling beam 2 floor beam 3 stud 31 hole 4 face material

Claims (1)

間柱の両側面に面材が設けられてなる間仕切り壁において、間柱が角筒状の金属形材で形成され、間柱の面材が設けられていない面の同一側の一面に、口径10〜60mmの孔が100〜2000mmピッチで設けられていることを特徴とする間仕切り壁。In a partition wall in which face materials are provided on both side surfaces of the studs, the studs are formed of a rectangular tubular metal material, and a surface of the same side where the studs are not provided has a diameter of 10 to 60 mm. Wherein the holes are provided at a pitch of 100 to 2000 mm.
JP2002244205A 2002-08-23 2002-08-23 Partition wall Pending JP2004084216A (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006177112A (en) * 2004-12-24 2006-07-06 Daiwa House Ind Co Ltd Hollow double sound insulating wall
JP2013524051A (en) * 2010-04-12 2013-06-17 エルジー・ハウシス・リミテッド ASSEMBLY WALL HAVING IMPROVED SOUND ABSORPTION PERFORMANCE AND ITS ASSEMBLY STRUCTURE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006177112A (en) * 2004-12-24 2006-07-06 Daiwa House Ind Co Ltd Hollow double sound insulating wall
JP2013524051A (en) * 2010-04-12 2013-06-17 エルジー・ハウシス・リミテッド ASSEMBLY WALL HAVING IMPROVED SOUND ABSORPTION PERFORMANCE AND ITS ASSEMBLY STRUCTURE
US8820476B2 (en) 2010-04-12 2014-09-02 Lg Hausys, Ltd. Assembly wall body having improved sound absorbing and screening performance and a assembly structure comprising the same

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