JPH06101290A - Measuring device for sound insulation performance of building wall members - Google Patents
Measuring device for sound insulation performance of building wall membersInfo
- Publication number
- JPH06101290A JPH06101290A JP13527292A JP13527292A JPH06101290A JP H06101290 A JPH06101290 A JP H06101290A JP 13527292 A JP13527292 A JP 13527292A JP 13527292 A JP13527292 A JP 13527292A JP H06101290 A JPH06101290 A JP H06101290A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- wall
- floor
- side wall
- ceiling
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 abstract description 4
- 239000011505 plaster Substances 0.000 abstract description 4
- 239000011491 glass wool Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000644 propagated effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Building Environments (AREA)
Abstract
(57)【要約】
【目的】 音源室からの側路伝搬音の影響を減じて、設
計に生かすことができる建築用壁部材の正確な遮音性能
値を求める。
【構成】 ３方が側壁３２,３３,３４で、残りの１方が
中央に開口部２aをもつ側壁２で夫々囲まれ、上下が天
井と床で囲まれた直方体の室１を、上記開口部２aに対
向する側壁３３の略中央から突出する境壁３で部分的に
仕切る。音響透過損失が天井,側壁３２,３３,３４,床の
材料より小さく、Ｔ字状の平面形状を有する試料として
の建築用壁部材６を、開口部２aと境壁３の間に嵌め込
んで、相隣る音源室４と受音室５に分離する。音源室４
の天井,側壁および床に、夫々空間をあけて全面に亘っ
て対向するように音響を反射するプラスターボード９ま
たは床コンクリート１０を設けて２重構造にする。
(57) [Abstract] [Purpose] To obtain the accurate sound insulation performance value of the building wall member that can be utilized in the design by reducing the influence of the side propagation sound from the sound source room. [Structure] A rectangular parallelepiped chamber 1 surrounded by side walls 32, 33, 34 on three sides and a side wall 2 having an opening 2a at the center on the other side, and a ceiling and a floor on the upper and lower sides, is formed into the above-mentioned opening. The partition wall 3 is partially partitioned by a boundary wall 3 that protrudes from substantially the center of the side wall 33 that faces the portion 2a. A building wall member 6 as a sample having a sound transmission loss smaller than that of the material of the ceiling, the side walls 32, 33, 34, and the floor and having a T-shaped plane shape is fitted between the opening 2a and the boundary wall 3. , The sound source room 4 and the sound receiving room 5 which are adjacent to each other are separated. Sound source room 4
A plaster board 9 or floor concrete 10 that reflects sound is provided on the ceiling, side walls, and floor of the above so as to be opposed to each other over a whole surface to form a double structure.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、隣接する音源室と受音
室を部分的に被測定体たる建築用壁部材で仕切って、音
源室から発した音を、音源室と受音室に設けた受音器で
受けて、両室で受けた音の音圧レベル差から遮音性能値
を求める遮音性能の測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides a sound source room and a sound receiving room which are adjacent to each other by a building wall member, which is an object to be measured, so that the sound emitted from the sound source room is divided into the sound source room and the sound receiving room. The present invention relates to a sound insulation performance measuring device that obtains a sound insulation performance value from a sound pressure level difference of sound received in both rooms by a sound receiver provided.
【０００２】[0002]
【従来の技術】建築における音響設計では、JIS A 1416
で規格化された残響室法による音響透過損失値が主に
用いられており、この値は、従来、図３に示すような方
法で測定されている。音源室３８と受音室３９は、４方
がコンクリートの側壁３２,３３,３４,３５で囲まれ、
上下が図示しない天井スラブと床スラブで囲まれた直方
体の室３１を、面積10m2の長方形の開口部４０aをもつ
境壁４０によりいずれも容積100m3以上に２分割して、
どの位置でも音圧が均一となる拡散音場の残響室に構成
している。そして、境壁４０の開口部４０aに、残響室
の部分よりも音響透過損失の小さい建築用壁部材からな
る試料４１を嵌め込み、音源室３８内の音源たるスピー
カ４２により、バンドノイズ発生器４３,パワーアンプ
４４を介して一定出力のバンドノイズを発生させる一
方、音源室３８内と受音室３９内に試料,壁面等から１m
以上離して複数設けた受音器たるマイクロホン４５で集
音を行なう。マイクロホン４５の集音信号は、プリアン
プ４６,帯域フィルタ４７を経て高速度レベルレコーダ
４８に記録され、各受音点での音圧レベルが周波数帯域
ごとに測定されて表示される。上記測定装置を使用し、
JIS A 1416 で規格化された実験室における音響透過損
失測定方法にしたがって、音響室３８と受音室３９にお
ける平均音圧レベルを求め、両室の平均音圧レベルの
差、つまり遮音性能値を算出する。[Prior Art] For acoustic design in architecture, JIS A 1416
The sound transmission loss value by the reverberation room method standardized in 1. is mainly used, and this value is conventionally measured by the method shown in FIG. The sound source room 38 and the sound receiving room 39 are surrounded on four sides by concrete side walls 32, 33, 34, 35,
A rectangular parallelepiped chamber 31 surrounded by a ceiling slab (not shown) and a floor slab is divided into two parts each having a volume of 100 m 3 or more by a boundary wall 40 having a rectangular opening 40a with an area of 10 m 2 .
The reverberation room has a diffuse sound field where the sound pressure is uniform at all positions. Then, a sample 41 made of a building wall member having a smaller sound transmission loss than that of the reverberation room is fitted into the opening 40a of the boundary wall 40, and a band noise generator 43, A constant output band noise is generated through the power amplifier 44, while the sound source chamber 38 and the sound receiving chamber 39 are 1 m from the sample, wall surface, etc.
Sound is collected by a plurality of microphones 45, which are sound receivers separated from each other. The sound collection signal of the microphone 45 is recorded in the high speed level recorder 48 via the preamplifier 46 and the band filter 47, and the sound pressure level at each sound receiving point is measured and displayed for each frequency band. Using the above measuring device,
According to the sound transmission loss measuring method in the laboratory standardized by JIS A 1416, the average sound pressure level in the sound room 38 and the sound receiving room 39 is obtained, and the difference between the average sound pressure levels in both rooms, that is, the sound insulation performance value is calculated. calculate.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記従来の
残響室による音響透過損失の測定装置は、音源室３８の
スピーカ４２で発せられた音響が、受音室３９との境壁
４０の試料４１を透過するのみならず、図３の矢印で示
すように、側壁３５を固体音として伝わって受音室３９
に放射されるので、試料４１の正確な遮音性能を求めら
れない。また、現実の集合住宅等における隣室からの音
の伝搬は、図３を集合住宅における隣接する２室と見立
てて説明すると、境壁４０と試料４１で示す仕切り壁を
透過する音のみならず、図３の矢印で示すように側壁
(外部壁)３５を固体音として伝わって受音室(隣室)３９
に放射され、あるいは側壁３５に破線で示すような窓４
９等の開口があると、ここを通って隣室３９に回り込
む。そして、これらの側路伝搬音は、両室を仕切る仕切
り壁を透過する音に劣らぬレベルであり集合住宅などの
２室間の遮音性能が上記側路伝搬音によって左右される
ことも少なくない。ところが、上記従来の残響室法によ
る音響透過損失の測定方法は、試料４１の音響透過損失
を求めるものであり、この測定で求まった音響透過損失
値をそのまま集合住宅などにおける遮音材としての建築
用部材の設計に生かすこともできない。By the way, in the above-described conventional apparatus for measuring the sound transmission loss in the reverberation chamber, the sound emitted from the speaker 42 of the sound source chamber 38 is the sample 41 of the boundary wall 40 with the sound receiving chamber 39. Of the sound receiving chamber 39 through the side wall 35 as a solid sound as shown by the arrow in FIG.
Therefore, accurate sound insulation performance of the sample 41 is not required. Further, the sound propagation from the adjacent room in the actual housing complex will be described noting only the two rooms adjacent to each other in FIG. 3 as if it were the sound transmitted through the boundary wall 40 and the partition wall indicated by the sample 41. Side wall as shown by the arrow in FIG.
(Outside wall) 35 is transmitted as a solid sound and the sound receiving room (adjacent room) 39
Window 4 or as shown by the broken line on the side wall 35.
If there is an opening such as 9 and the like, it goes around to the adjacent chamber 39 through this. These side-by-side propagation sounds are at a level comparable to the sound transmitted through the partition wall that separates both rooms, and the sound insulation performance between two rooms such as an apartment house is often affected by the above-mentioned side-by-side propagation sounds. . However, the above-mentioned conventional method of measuring the sound transmission loss by the reverberation room method obtains the sound transmission loss of the sample 41, and the sound transmission loss value obtained by this measurement is used as it is for construction as a sound insulation material in an apartment house or the like. It cannot be used in the design of parts.
【０００４】そこで、本発明の目的は、音源室と受音室
および試料たる建築用壁部材の形状や構造を工夫するこ
とにより、音源室からの側路伝搬音の影響を加味して、
設計に生かすことができる建築用壁部材の正確な遮音性
能値を求めることができる測定装置を提供することにあ
る。Therefore, an object of the present invention is to devise the shapes and structures of the sound source room, the sound receiving room, and the building wall member as the sample, in consideration of the influence of the side-by-side propagation sound from the sound source room.
An object of the present invention is to provide a measuring device capable of obtaining an accurate sound insulation performance value of a building wall member that can be utilized in design.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明の建築用壁部材の遮音性能の測定装置は、上
下が天井と床で、３方が側壁で夫々囲まれ、残りの１方
が中央に開口部をもつ側壁で区切られた直方体の室を、
上記開口部に対向する側壁の略中央から突出する境壁で
部分的に２つに仕切るとともに、Ｔ字状の平面形状を有
し、上記天井,床,壁の材料より小さい音響透過損失をも
つ建築用壁部材を、この建築用壁部材の一側壁を上記開
口部に配置し、この一側壁の中央から突出する他側壁を
上記一側壁と境壁の間に配置して互いに隣接する音源室
と受音室に分離する一方、上記音源室の天井,側壁及び
床に、夫々空間をあけて全面に亘って対向するように音
響を反射する板材または床材を設けて２重構造として、
上記音源室から発した音を、音源室と受音室に設けた受
音器で受けて、両室で受けた音の音圧レベル差から上記
建築用壁部材の遮音性能値を求めることを特徴とする。In order to achieve the above object, a sound insulation performance measuring apparatus for a building wall member according to the present invention is surrounded by a ceiling and a floor on the upper and lower sides and three side walls on three sides respectively, and the remaining 1 A rectangular parallelepiped chamber separated by a side wall with an opening in the center,
It has a T-shaped planar shape and has a sound transmission loss smaller than that of the material of the ceiling, floor, and wall, while it is partially divided into two by a boundary wall protruding from approximately the center of the side wall facing the opening. A sound source room in which one side wall of the building wall member is arranged in the opening, and the other side wall protruding from the center of the one side wall is arranged between the one side wall and the boundary wall and adjacent to each other. The sound source room is separated into a sound-receiving room and a plate or floor material that reflects sound is provided on the ceiling, side wall and floor of the sound source room so as to face each other over the entire surface, as a double structure.
The sound emitted from the sound source room is received by a sound receiver provided in the sound source room and the sound receiving room, and the sound insulation performance value of the building wall member is obtained from the sound pressure level difference between the sounds received in both rooms. Characterize.
【０００６】[0006]
【作用】３方が側壁で、残りの１方が中央に開口部をも
つ側壁で夫々囲まれ、上下が天井と床で囲まれた直方体
の室は、上記開口部に対向する側壁の略中央から突出す
る境壁により、音源室と受音室に部分的に仕切られてい
る。両室の仕切られていない箇所には、音響透過損失が
上記天井,床,壁の材料より小さく,Ｔ字状の平面形状を
有する建築用壁部材が、その一側壁を上記開口部に,こ
の一側壁の中央から突出する他側壁を上記境壁との間に
夫々位置させて配置されて、隣接する音源室と受音室を
完全に分離している。また、音源室は、上記建築用壁部
材以外の天井,側壁,床の総てに、これらに空間をあけて
全面に亘って対向するように音響を反射する板材または
床材を設けた２重構造になっている。従って、音源室内
で発っせられた音のうち上記天井,側壁,床に向かうもの
は、上記２重構造の空間で遮られてこれらに殆んど伝わ
らず、他の方向に向かう音は総て上記建築用壁部材を透
過または伝搬して隣接する受音室に伝わる。それゆえ、
受音室内に設けられた受音器は、建築用壁部材のみを伝
わった音を受けて、その音圧レベルを検出することにな
って、建築用壁部材の側路伝搬音を加味した音響透過損
失つまり遮音性能値が測定できる。A rectangular parallelepiped chamber surrounded by side walls on three sides and a side wall having an opening at the center on one side and a ceiling and a floor on the upper and lower sides is substantially the center of the side wall facing the opening. A sound source room and a sound receiving room are partly separated from each other by a boundary wall protruding from. In the unpartitioned area of both rooms, the sound transmission loss is smaller than the materials of the ceiling, floor, and wall, and a building wall member having a T-shaped planar shape, one side wall of which is used as the opening. The other side wall projecting from the center of the one side wall is arranged so as to be located between the boundary wall and the boundary wall, respectively, and the adjacent sound source chamber and sound receiving chamber are completely separated. In addition, the sound source room has double ceilings, side walls, and floors other than the above-mentioned building wall members, all of which are provided with plate materials or floor materials that reflect sound so as to face the entire surface with a space between them. It is structured. Therefore, of the sounds emitted in the sound source room, those that go to the ceiling, side walls, and floor are blocked by the double-structured space and are hardly transmitted to them, and all the sounds that go to other directions. It passes through or propagates through the building wall member and is transmitted to the adjacent sound receiving chamber. therefore,
The sound receiver installed in the sound receiving room receives the sound transmitted only through the building wall member and detects the sound pressure level of the sound. The transmission loss, that is, the sound insulation performance value can be measured.
【０００７】[0007]
【実施例】以下、本発明を図示の実施例により詳細に説
明する。図１,図２は、本発明の建築用壁部材の遮音性
能の測定装置の一例を示す横断面図および縦断面図であ
り、この測定装置は、上下が天井３５と床３６(図２参
照)で、３方が側壁３２,３３,３４で夫々図３と同様に
囲まれ、残りの１方が中央に開口部２aをもつ側壁２で
区切られた直方体の室１を、上記開口部２aに対向する
側壁３３の略中央から突出する境壁３で部分的に２つに
仕切るとともに、Ｔ字状の平面形状を有する試料として
の建築用壁部材６で、上記開口部２aと境壁３の間を仕
切って、音源室４と受音室５を分離して構成している。
上記建築用壁部材６は、一側壁６aを開口部２aに嵌め込
み、この一側壁６aの中央から突出する他側壁６bを境壁
３との間に嵌め込むと共に、ゴム製の防振材７を介して
対向する各壁の端縁(図１参照)及び天井面(図２参照)に
接続される。The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 and 2 are a horizontal cross-sectional view and a vertical cross-sectional view showing an example of a sound insulation performance measuring device for a building wall member according to the present invention. This measuring device has a ceiling 35 and a floor 36 at the top and bottom (see FIG. 2). ), The three sides are surrounded by side walls 32, 33, and 34 in the same manner as in FIG. 3, and the remaining one side is a rectangular parallelepiped chamber 1 divided by a side wall 2 having an opening 2a in the center. The partition wall 3 projecting from approximately the center of the side wall 33 facing the wall is partially partitioned into two parts, and the building wall member 6 as a sample having a T-shaped planar shape is provided with the opening 2a and the boundary wall 3. The sound source room 4 and the sound receiving room 5 are separated by partitioning the space.
In the building wall member 6, the one side wall 6a is fitted into the opening 2a, the other side wall 6b protruding from the center of the one side wall 6a is fitted between the side wall 6 and the rubber vibration isolator 7. It is connected to the edge (see FIG. 1) and the ceiling surface (see FIG. 2) of each of the opposing walls.
【０００８】また、上記音源室４の天井３５、側壁２,
３,３２,３３および床３６には、全面に吸音材としての
グラスウール８を貼り付け、天井と側壁には、空間をあ
けて全面に亘って対向するように音響反射材としてのプ
ラスターボード９を設ける一方、床には、グラスウール
８上にコンクリート１０を打設して、音源室４を空気層
で囲まれた２重構造にしている。そして、図３で述べた
ように、音源室３８には、バンドノイズ発生器４３,パ
ワーアンプ４４を介して音響を発生するスピーカ４２を
設置し、音源室３８および受音室３９には、プリアンプ
４６,帯域フィルタ４７,高速度レベルレコーダ４８を備
えて音響を捕らえる５つのマイクロホン４５を設置して
いる。Further, the ceiling 35, the side wall 2, and the
Glass wool 8 as a sound absorbing material is attached to the entire surfaces of 3, 32, 33 and the floor 36, and a plaster board 9 as an acoustic reflecting material is provided on the ceiling and the side walls so as to face each other across a space. On the other hand, on the floor, concrete 10 is cast on glass wool 8 so that the sound source chamber 4 has a double structure surrounded by an air layer. As described with reference to FIG. 3, the sound source room 38 is provided with the speaker 42 that generates sound through the band noise generator 43 and the power amplifier 44, and the sound source room 38 and the sound receiving room 39 are provided with a preamplifier. 46, a bandpass filter 47, and a high-speed level recorder 48, and five microphones 45 for capturing sound are installed.
【０００９】上記構成の遮音性能の測定装置の作用を、
次に述べる。３方が側壁３２,３３,３４で、残りの１方
が中央に開口部２aをもつ側壁２で夫々囲まれ、上下が
天井スラブ３５と床スラブ３６で囲まれた直方体の室１
は、上記開口部２aに対向する側壁３３の略中央から突
出する境壁３により、音源室４と受音室５に部分的に仕
切られている。両室４,５の仕切られていない箇所に
は、音響透過損失が側壁３２,３３,３４、天井３５、床
３６より小さく,Ｔ字状の平面形状を有する試料として
の建築用壁部材６が、その一側壁６aを上記開口部２a
に,この一側壁の中央から突出する他側壁６bを上記境壁
３との間に夫々嵌め込んで、防振材７を介して対向する
壁の端縁および天井面に接続されて、隣接する音源室４
と受音室５を完全に分離している。また、音源室４は、
建築用壁部材６以外の天井,側壁,床の総てに、グラスウ
ール８および空気層を介して全面に亘って対向するよう
に音響を反射するプラスターボード９設け、あるいはグ
ラスウール８による空気層を介してコンクリート１０を
設けた２重構造になっている。The operation of the sound insulation performance measuring device having the above-mentioned structure
It will be described next. A rectangular parallelepiped chamber 1 in which three sides are surrounded by side walls 32, 33 and 34, the remaining one side is surrounded by side walls 2 each having an opening 2a in the center, and the upper and lower sides are surrounded by a ceiling slab 35 and a floor slab 36.
Is partially partitioned into a sound source chamber 4 and a sound receiving chamber 5 by a boundary wall 3 projecting from substantially the center of a side wall 33 facing the opening 2a. In the unpartitioned portions of both chambers 4 and 5, there is a building wall member 6 as a sample having a T-shaped planar shape with a sound transmission loss smaller than that of the side walls 32, 33 and 34, the ceiling 35 and the floor 36. , One side wall 6a of the opening 2a
Then, the other side wall 6b protruding from the center of the one side wall is fitted between the side wall 3 and the boundary wall 3, respectively, and is connected to the edge of the opposing wall and the ceiling surface via the vibration isolator 7 so as to be adjacent thereto. Sound source room 4
And the sound receiving chamber 5 are completely separated. The sound source room 4 is
All the ceilings, side walls, and floors other than the building wall member 6 are provided with plasterboard 9 that reflects sound so as to face the entire surface through the glass wool 8 and the air layer, or through the air layer formed by the glass wool 8. It has a double structure with concrete 10.
【００１０】従って、音源室４内のスピーカ４２から発
せられた音のうち上記天井３５、側壁２,３,３２,３
３、床３６に向かうものは、上記２重構造の空気層で遮
られてこれらに殆んど伝わらず、他の方向に向かう音
は、総て上記建築用壁部材６を透過または伝搬して隣接
する受音室５に伝わる。つまり、従来例の測定装置側壁
等からの側路伝搬音が殆んどなくなって、受音室５内に
設けられたマイクロホン４５は、試料である建築用壁部
材６のみを伝わった音を受けて、その音圧レベルが高速
度レベルレコーダ４８により測定,表示されるので、受
音室３９では、建築用壁部材６の一側壁６aを透過して
伝わる透過音に一側壁６bを固体音として伝わり受音室
３９に放射されるか、あるいは、一側壁６bに開口があ
ると、ここを通って受音室３９に回り込む側路伝搬音を
加味した平均音圧レベルが得られる。そして、音源室３
８の平均音圧レベルを上記受音室３８の平均音圧レベル
の差つまり平均音圧レベルの差は、試料たる建築用壁部
材６の透過音に側路伝搬音を加味した遮音性能を表わす
ものであるから、この値を集合住宅などの壁部材の遮音
設計に効果的に用いることができる。上記実施例では、
音源室４の側壁等の内面全体に吸音材としてグラスウー
ル８を貼り付け、建築用壁部材６の端縁を防振材７を介
して側壁等に接続しているので、プラスターボード９の
みの場合よりスピーカ４２から側壁等に伝わる音を低減
でき、側壁等に伝わった僅な音の建築用壁部材６への伝
搬も、防振材７で防止でき、側路伝搬音を一層減少させ
ることができるという利点がある。Accordingly, among the sounds emitted from the speaker 42 in the sound source room 4, the ceiling 35 and the side walls 2, 3, 32, 3 are mentioned.
3, the one that goes to the floor 36 is blocked by the air layer of the double structure and hardly transmitted to these, and all the sounds that go to the other directions are transmitted or propagated through the building wall member 6. It is transmitted to the adjacent sound receiving room 5. That is, the side propagation sound from the side wall of the measuring device of the conventional example is almost eliminated, and the microphone 45 provided in the sound receiving chamber 5 receives the sound transmitted only through the building wall member 6 as the sample. Since the sound pressure level is measured and displayed by the high-speed level recorder 48, in the sound receiving chamber 39, the transmitted sound transmitted through the side wall 6a of the building wall member 6 is transmitted as one solid wall 6b. If the sound is transmitted to and radiated to the sound receiving chamber 39, or if there is an opening in the side wall 6b, an average sound pressure level that takes into account the side-by-side propagating sound that passes through the side wall 6b and circulates into the sound receiving chamber 39 is obtained. And sound source room 3
The difference in the average sound pressure level of 8 from the sound receiving chamber 38, that is, the difference in the average sound pressure level represents the sound insulation performance in which the transmitted sound of the building wall member 6 as a sample is mixed with the side propagation sound. Therefore, this value can be effectively used for sound insulation design of wall members such as apartment houses. In the above example,
Since the glass wool 8 is attached as a sound absorbing material to the entire inner surface such as the side wall of the sound source chamber 4 and the edge of the building wall member 6 is connected to the side wall and the like via the vibration isolator 7, it is better than the case of only the plaster board 9. The sound transmitted from the speaker 42 to the side wall or the like can be reduced, and even the slight sound transmitted to the side wall or the like can be prevented from propagating to the building wall member 6 by the vibration isolator 7, and the side propagation sound can be further reduced. There is an advantage.
【００１１】なお、上記実施例のグラスウール８や防振
材７は、省略してもよく、その場合でも、音源室４の空
気層をもつ２重構造および試料たる建築用壁部材６のＴ
字状平面形状により、側路伝搬音を従来例に比し大幅に
低減することができる。The glass wool 8 and the vibration isolator 7 of the above embodiment may be omitted, and even in that case, the double structure having the air layer of the sound source chamber 4 and the T of the building wall member 6 as a sample.
With the shape of the letter-shaped plane, the side-by-side propagation sound can be significantly reduced compared to the conventional example.
【００１２】[0012]
【発明の効果】以上の説明で明らかなように、本発明の
建築用壁部材の遮音性能の測定装置は、３方が側壁で、
残りの１方が中央に開口部をもつ側壁で夫々囲まれ、上
下が天井と床で囲まれた直方体の室を、上記開口部に対
向する側壁の略中央から突出する境壁で部分的に仕切る
とともに、音響透過損失が上記天井,側壁,床の材料より
小さく,Ｔ字状の平面形状を有する試料としての建築用
壁部材を、上記開口部と境壁の間に嵌め込んで、相隣る
音源室と受音室に分離する一方、上記音源室の天井,側
壁及び床に、夫々空間をあけて全面に亘って対向するよ
うに音響を反射する板材または床材を設けて２重構造と
しているので、音源室で発せられた音を音源室の外部側
壁等の側路に伝搬させず、建築用壁部材を透過または伝
搬してくる音のみを受音室内の受音器で受けて音圧レベ
ルを測定できて、十字状の平面形状を有する建築用壁部
材の側路伝搬音を加味した遮音性能値を求めることがで
き、より現実に近いを遮音設計ができる。As is apparent from the above description, the sound insulation performance measuring apparatus for a building wall member according to the present invention has three side walls,
The remaining one side is surrounded by side walls each having an opening in the center, and a rectangular parallelepiped chamber whose upper and lower sides are surrounded by a ceiling and a floor is partially surrounded by a boundary wall projecting from approximately the center of the side wall facing the opening. Along with partitioning, a building wall member as a sample having a T-shaped planar shape with a sound transmission loss smaller than that of the materials for the ceiling, side walls, and floor was fitted between the opening and the boundary wall, and adjacent to each other. The sound source room and the sound receiving room are separated, while the ceiling, side walls, and floor of the sound source room are provided with a plate material or floor material that reflects sound so as to face each other across the entire surface with a double structure. Therefore, the sound generated in the sound source room is not propagated to the side wall such as the outer side wall of the sound source room, but only the sound transmitted or propagated through the building wall member is received by the sound receiver in the sound receiving room. The sound pressure level can be measured, and the side propagation sound of the building wall member with a cross shape is added. The sound insulation performance value can be obtained, and the sound insulation design can be made more realistic.
【図１】 本発明の建築用壁部材の遮音性能の測定装置
の一実施例を示す横断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a device for measuring the sound insulation performance of a building wall member of the present invention.
【図２】 図１のII−II線断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】 従来の遮音性能の測定装置を示す横断面図で
ある。FIG. 3 is a cross-sectional view showing a conventional sound insulation performance measuring apparatus.
１…直方体の室、２…側壁、２a…開口部、３…境壁、
４…音源室、５…受音室、６…建築用壁部材(試料)、６
ａ…一側壁、６ｂ…他側壁、７…防振材、８…グラスウ
ール、９…プラスターボード、１０…コンクリート、３
２,３３,３４…側壁、３５…天井スラブ、３６…床スラ
ブ、４２…スピーカ、４５…マイクロホン。1 ... Rectangular chamber, 2 ... Side wall, 2a ... Opening part, 3 ... Boundary wall,
4 ... Sound source room, 5 ... Sound receiving room, 6 ... Building wall member (sample), 6
a ... One side wall, 6b ... Other side wall, 7 ... Anti-vibration material, 8 ... Glass wool, 9 ... Plaster board, 10 ... Concrete, 3
2, 33, 34 ... Side wall, 35 ... Ceiling slab, 36 ... Floor slab, 42 ... Speaker, 45 ... Microphone.
Claims (1)
まれ、残りの１方が中央に開口部をもつ側壁で区切られ
た直方体の室を、上記開口部に対向する側壁の略中央か
ら突出する境壁で部分的に２つに仕切るとともに、 Ｔ字状の平面形状を有し、上記天井,床,壁の材料より小
さい音響透過損失をもつ建築用壁部材を、この建築用壁
部材の一側壁を上記開口部に配置し、この一側壁の中央
から突出する他側壁を上記一側壁と境壁の間に配置して
互いに隣接する音源室と受音室に分離する一方、 上記音源室の天井,側壁および床に、夫々空間をあけて
全面に亘って対向するように音響を反射する板材または
床材を設けて２重構造として、上記音源室から発した音
を、音源室と受音室に設けた受音器で受けて、両室で受
けた音の音圧レベル差から上記建築用壁部材の遮音性能
値を求めることを特徴とする建築用壁部材の遮音性能の
測定装置。1. A rectangular parallelepiped chamber whose upper and lower sides are surrounded by a ceiling and a floor, three sides are respectively surrounded by side walls, and the other one is partitioned by side walls having an opening at the center, This building wall member has a T-shaped planar shape and has a sound transmission loss smaller than that of the materials of the ceiling, floor, and wall, which is divided into two parts by a boundary wall projecting from approximately the center. One side wall of the wall member is disposed in the opening, and the other side wall protruding from the center of the side wall is disposed between the one side wall and the boundary wall to separate the sound source chamber and the sound receiving chamber adjacent to each other. The sound, which is emitted from the sound source room, is provided as a double structure by providing a plate material or a floor material that reflects sound so as to face each other over the entire surface with a space between the ceiling, the side wall and the floor of the sound source room. Received by the sound receiver provided in the sound source room and the sound receiving room, and from the difference in sound pressure level of the sound received in both rooms, the above Measuring device sound insulation performance of architectural wall member characterized by determining the sound insulation performance value of the dating wall member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13527292A JP2965791B2 (en) | 1992-05-27 | 1992-05-27 | Measurement equipment for sound insulation performance of building wall members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13527292A JP2965791B2 (en) | 1992-05-27 | 1992-05-27 | Measurement equipment for sound insulation performance of building wall members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06101290A true JPH06101290A (en) | 1994-04-12 |
| JP2965791B2 JP2965791B2 (en) | 1999-10-18 |
Family
ID=15147828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13527292A Expired - Fee Related JP2965791B2 (en) | 1992-05-27 | 1992-05-27 | Measurement equipment for sound insulation performance of building wall members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2965791B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746182A1 (en) * | 1996-03-12 | 1997-09-19 | Quille Entreprise | Acoustic insulation measurement technique for partition walls in building |
| CZ303177B6 (en) * | 2008-01-14 | 2012-05-16 | Technický a zkušební ústav stavební Praha, s.p. | Device for testing acoustic properties of building materials and constructions |
| CN107143049A (en) * | 2017-06-07 | 2017-09-08 | 中车长春轨道客车股份有限公司 | A kind of sound insulation testing room double wall engaging structure |
| CN109579980A (en) * | 2018-11-28 | 2019-04-05 | 中车长春轨道客车股份有限公司 | The sound insulation measurement method of track vehicle door system based on reverberation chamber and anechoic room |
-
1992
- 1992-05-27 JP JP13527292A patent/JP2965791B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746182A1 (en) * | 1996-03-12 | 1997-09-19 | Quille Entreprise | Acoustic insulation measurement technique for partition walls in building |
| CZ303177B6 (en) * | 2008-01-14 | 2012-05-16 | Technický a zkušební ústav stavební Praha, s.p. | Device for testing acoustic properties of building materials and constructions |
| CN107143049A (en) * | 2017-06-07 | 2017-09-08 | 中车长春轨道客车股份有限公司 | A kind of sound insulation testing room double wall engaging structure |
| CN109579980A (en) * | 2018-11-28 | 2019-04-05 | 中车长春轨道客车股份有限公司 | The sound insulation measurement method of track vehicle door system based on reverberation chamber and anechoic room |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2965791B2 (en) | 1999-10-18 |
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