JP2001059287A - Vibrationproof support structure of sound insulation wall - Google Patents
Vibrationproof support structure of sound insulation wallInfo
- Publication number
- JP2001059287A JP2001059287A JP11236781A JP23678199A JP2001059287A JP 2001059287 A JP2001059287 A JP 2001059287A JP 11236781 A JP11236781 A JP 11236781A JP 23678199 A JP23678199 A JP 23678199A JP 2001059287 A JP2001059287 A JP 2001059287A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- sound insulation
- elastic
- support
- noise
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防音壁の防振支持
構造に関し、詳しくは、内部に騒音及び振動の発生源を
収容する構築物において、その構築物から外部への騒音
を防止する防音壁の防振支持構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration support structure for a sound-insulating wall, and more particularly, to a sound-insulating wall for preventing noise from the structure to the outside in a structure containing a source of noise and vibration therein. The present invention relates to an anti-vibration support structure.
【０００２】[0002]
【従来の技術】上記従来の防音壁の防振支持構造におい
ては、例えば図１１に示すように、防音壁１は、その内
面に取り付けられた取付金物１０を前記構築物８の張出
部８ａに防振ゴムからなる防振材１２を介して締結部材
１１を用いて止め付けてあった。2. Description of the Related Art In the above-mentioned conventional anti-vibration support structure for a soundproof wall, as shown in FIG. 11, for example, a soundproof wall 1 has a mounting member 10 attached to the inner surface thereof on an overhang portion 8a of the building 8. The fastening member 11 has been used for fastening with a vibration isolating material 12 made of a vibration isolating rubber.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の防振支持構
造は、工場等の構築物８の内部から若しくは外部からの
騒音を遮蔽することを主たる目的としたもので、防音壁
１と構築物８との間に相対振動が生じた場合に、これに
対して前記構築物８と前記防音壁１との間の取付部材を
破損から保護することを主たる目的とした支持構造であ
った。つまり、音源からの音波伝達を遮断することに主
眼をおいており、図１１に示したように、縦方向に、前
記防音壁１を前記構築物８に１軸弾性支持するものであ
る。前記工場等の構築物８の内部には、通常複数の騒音
及び振動の発生源を収容しており、その騒音及び振動の
発生源は、例えばルーツブロア、エアコンプレッサ等で
ある。図示の構築物８は、既存の工場であり、前記騒音
及び振動の発生源たるルーツブロア、エアコンプレッサ
等は、床面に据え付けられていて、これら機器の基盤部
と前記床面との間には防振ゴム等の防振材が介装されて
いるだけである。The above-mentioned conventional anti-vibration support structure has a main object of shielding noise from inside or outside of a building 8 such as a factory. When the relative vibration occurs between the two, the support structure is mainly intended to protect the mounting member between the building 8 and the soundproof wall 1 from damage. That is, the main purpose is to block transmission of sound waves from the sound source, and as shown in FIG. 11, the soundproof wall 1 is uniaxially elastically supported on the building 8 in the vertical direction. Usually, a plurality of noise and vibration sources are housed inside the building 8 such as a factory, and the noise and vibration sources are, for example, a roots blower, an air compressor, and the like. The illustrated construction 8 is an existing factory, and the roots blower, air compressor, and the like, which are the sources of the noise and vibration, are installed on the floor surface. Only a vibration isolator such as a vibration rubber is interposed.
【０００４】従って、前記騒音及び振動の発生源と前記
構築物８の躯体との間の振動伝達を防止する対策として
は不十分で、その振動発生源から前記躯体への振動の伝
達はほとんど抑制されず、前記構築物８と前記防音壁１
との間の弾性支持により、前記躯体から前記防音壁１に
伝達される振動は幾分減衰するにしても、前記躯体の前
記防音壁１の面に垂直な方向の振動が前記防音壁１に伝
達され、前記構築物８の外部に対して前記騒音及び振動
の発生源からの音波は遮断できても、前記防音壁１自体
が前記振動発生源からの振動の伝達を受けて振動し、こ
れが二次的な騒音源となるのである。Therefore, the measures for preventing the transmission of the vibration between the noise and vibration source and the frame of the building 8 are insufficient, and the transmission of the vibration from the vibration source to the frame is almost suppressed. The building 8 and the soundproof wall 1
Even if the vibration transmitted from the skeleton to the soundproof wall 1 is somewhat attenuated by the elastic support between them, the vibration in the direction perpendicular to the surface of the soundproof wall 1 of the skeleton is applied to the soundproof wall 1. Although transmitted, the sound wave from the noise and vibration source can be cut off to the outside of the building 8, but the soundproof wall 1 itself vibrates in response to the transmission of vibration from the vibration source. It is the next source of noise.
【０００５】従って、上述のような内部に騒音及び振動
の発生源を収容した構築物８においては、上記従来の防
音壁の防振支持構造は十分な騒音防止対策となっていな
い場合があるというのが現状である。つまり、従来の防
音壁の防振支持構造は、防音壁自身が騒音の二次的な発
生源となることを考慮したものではないのが一般的であ
る。Therefore, in the structure 8 in which the sources of noise and vibration are accommodated as described above, the above-mentioned conventional anti-vibration support structure of the sound-insulating wall may not provide sufficient noise prevention measures. Is the current situation. That is, the conventional anti-vibration support structure of the soundproof wall generally does not consider that the soundproof wall itself is a secondary noise source.
【０００６】そこで、本発明の目的は、防音壁の取付構
造を簡単にして、後付工事をも可能とし、且つ、防音壁
自身からの二次的な騒音放射を防止して、外部に対する
騒音を確実に抑制できる防音壁の防振支持構造を提供す
る点にある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to simplify the mounting structure of the soundproof wall, to enable retrofitting work, to prevent secondary noise radiation from the soundproof wall itself, and to reduce noise to the outside. It is an object of the present invention to provide a vibration-proof support structure for a soundproof wall capable of reliably suppressing noise.
【０００７】[0007]
【課題を解決するための手段】〔本発明の特徴構成〕本
発明に係る防音壁の防振支持構造の第１特徴構成は、請
求項１に記載のごとく、構築物に固定されたブラケット
に、防音壁を形成する遮音パネルの相対振動を許容し、
且つ、その相対振動を減衰する弾性支持機構を設け、前
記弾性支持機構を、弾性材を介して前記遮音パネルを２
軸支持するように構成してある点にある。[Means for Solving the Problems] The first feature of the vibration isolating support structure of the soundproof wall according to the present invention is as described in claim 1, wherein the bracket is fixed to the building. Allow the relative vibration of the sound insulation panel that forms the soundproof wall,
Further, an elastic support mechanism for attenuating the relative vibration is provided, and the elastic support mechanism is connected to the sound insulation panel by an elastic material.
The point is that it is configured to support the shaft.
【０００８】本発明に係る防音壁の防振支持構造の第２
特徴構成は、請求項２に記載のごとく、上記第１特徴構
成において遮音パネルを支持する２軸を含む平面を、上
下方向で前記遮音パネルに直交する方向に配置してある
点にある。[0008] The second embodiment of the vibration isolating support structure of the soundproof wall according to the present invention.
According to a second aspect of the present invention, in the first aspect, a plane including two axes for supporting the sound insulation panel is arranged in a vertical direction perpendicular to the sound insulation panel.
【０００９】本発明に係る防音壁の防振支持構造の第３
特徴構成は、請求項３に記載のごとく、上記第１特徴構
成又は第２特徴構成において遮音パネルを支持する２軸
を、鉛直軸に対して対称に配置してある点にある。[0009] The third aspect of the anti-vibration support structure of the soundproof wall according to the present invention.
According to a third aspect of the present invention, in the first or second aspect, the two axes supporting the sound insulation panel are symmetrically arranged with respect to a vertical axis.
【００１０】本発明に係る防音壁の防振支持構造の第４
特徴構成は、請求項４に記載のごとく、上記第１〜第３
特徴構成において、遮音パネルを弾性支持機構上に支持
してある点にある。The fourth aspect of the vibration-insulating support structure for a soundproof wall according to the present invention.
The characteristic configuration is such that the first to third features are described.
In the characteristic configuration, the sound insulation panel is supported on an elastic support mechanism.
【００１１】本発明に係る防音壁の防振支持構造の第５
特徴構成は、請求項５に記載のごとく、上記第４特徴構
成において、遮音パネルを、その下端側で弾性支持機構
に支持してある点にある。The fifth aspect of the vibration-proof support structure for a soundproof wall according to the present invention.
According to a fifth aspect of the present invention, in the fourth aspect, the sound insulation panel is supported by an elastic support mechanism at a lower end thereof.
【００１２】〔特徴構成の作用及び効果〕上記本発明に
係る防音壁の防振支持構造の第１特徴構成によれば、簡
単に防音壁を構造物に取り付けることができながら、前
記構造物内部からの騒音を遮断し、且つ、前記構造物の
振動を騒音として外部に放散ことを確実に防止できる。According to the first aspect of the sound-insulating wall vibration-damping support structure according to the present invention, the sound-insulating wall can be easily attached to the structure while maintaining the inside of the structure. Noise from the vehicle and the radiation of the vibration of the structure as noise to the outside can be reliably prevented.
【００１３】つまり、上記第１特徴構成においては、遮
音パネルにより、前記構造物内部からの騒音を遮断でき
る上に、弾性支持機構が、遮音パネルに対する２軸支持
機構を内蔵しているから、取り付け構造が簡単であり、
遮音パネルの後付工事も容易である。しかも、弾性材を
介して２軸支持する前記弾性支持機構は、異方性が小さ
く、且つ、大きな振動減衰能を示し、前記構築物の振動
が前記遮音パネルに伝達されることを防止することが可
能になる。That is, in the first characteristic configuration, the noise from the inside of the structure can be cut off by the sound insulation panel, and the elastic support mechanism has a built-in biaxial support mechanism for the sound insulation panel. The structure is simple,
Retrofitting of sound insulation panels is also easy. In addition, the elastic support mechanism that biaxially supports the elastic member has a small anisotropy and a large vibration damping ability, and prevents the vibration of the building from being transmitted to the sound insulation panel. Will be possible.
【００１４】従って、前記遮音パネルが振動すること
で、遮音パネル自身から騒音を放射することも抑制でき
る。殊に２軸弾性支持によれば、少なくとも前記２軸を
含む面内の相対変位に対しては、支持状態の復元特性が
大きく、従来必要としていた横方向の位置ずれを阻止す
る保持機構を必要としないから、構造物と防音壁との間
の振動伝達の節点は、この２軸弾性支持による弾性支持
機構のみに留めることができて、この弾性支持機構によ
り伝達される振動を減衰するから、極めて効果的に防音
壁を機能させることができるのである。Therefore, it is also possible to suppress the noise emission from the sound insulation panel itself due to the vibration of the sound insulation panel. In particular, according to the biaxial elastic support, at least with respect to a relative displacement in a plane including the two axes, a large restoring characteristic of a support state is required, and a holding mechanism for preventing a lateral displacement that has been required conventionally is required. Therefore, the node of vibration transmission between the structure and the soundproof wall can be limited to only the elastic support mechanism by the biaxial elastic support, and the vibration transmitted by the elastic support mechanism is attenuated. The sound barrier can function extremely effectively.
【００１５】上記本発明に係る防音壁の防振支持構造の
第２特徴構成によれば、上記第１特徴構成の作用効果を
一層高めることができる。つまり、前記弾性支持機構
は、振動減衰の異方性が小さい中でも、支持軸である２
軸を含む面内の振動に対しての振動吸収能が殊に高く、
前記２軸を含む面を遮音パネルに直交するように配置し
てあるから、前記遮音パネルが、その外面の法線方向に
振動することを確実に抑制でき、前記遮音パネルから騒
音を放散することを確実に防止できるのである。According to the second aspect of the vibration isolating support structure of the soundproof wall according to the present invention, the operational effects of the first aspect can be further enhanced. In other words, the elastic support mechanism has a support shaft 2 even though the anisotropy of vibration damping is small.
Especially high vibration absorption capacity against vibration in the plane including the axis,
Since the surface including the two axes is arranged so as to be orthogonal to the sound insulation panel, the sound insulation panel can be reliably prevented from vibrating in the normal direction of the outer surface thereof, and dissipating noise from the sound insulation panel. Can be reliably prevented.
【００１６】上記本発明に係る防音壁の防振支持構造の
第３特徴構成によれば、上記第１特徴構成又は第２特徴
構成の作用効果を一層確実にする。つまり、遮音パネル
を支持する２軸を鉛直軸に対して対称に配置してあるか
ら、その振動特性の異方性を殊に小さくでき、さらに振
動吸収能が高くなるのである。また、防音壁を支持する
支持荷重が前記弾性支持機構の弾性材に対して均等に作
用することから、弾性支持材の防振性能を高めることが
でき、前記弾性支持機構を小型化することもできるので
ある。According to the third aspect of the vibration-insulating support structure of the soundproof wall according to the present invention, the operation and effect of the first aspect or the second aspect are further ensured. That is, since the two axes supporting the sound insulating panel are arranged symmetrically with respect to the vertical axis, the anisotropy of the vibration characteristics can be particularly reduced, and the vibration absorbing ability can be increased. Further, since the supporting load for supporting the soundproof wall acts evenly on the elastic material of the elastic support mechanism, the vibration isolation performance of the elastic support material can be improved, and the elastic support mechanism can be downsized. You can.
【００１７】上記本発明に係る防音壁の防振支持構造の
第４特徴構成によれば、上記第１〜第３特徴構成の作用
効果を奏する中で、防音壁の支持構造を簡単にできる。
つまり、弾性支持機構を下受け支持機構にできて、前記
弾性支持機構における弾性材自身で防音壁を支持するか
ら、前記弾性支持機構の形成する振動系を、単純な直列
の減衰振動系として簡素化でき、従って構造的にも安定
し、防音壁の後付施工も容易になる。According to the fourth aspect of the vibration-insulating support structure of the soundproof wall according to the present invention, the support structure of the soundproof wall can be simplified while exhibiting the functions and effects of the first to third features.
That is, since the elastic support mechanism can be a lower support mechanism, and the soundproof wall is supported by the elastic material itself in the elastic support mechanism, the vibration system formed by the elastic support mechanism can be simplified as a simple series damped vibration system. Therefore, the structure is stable and the retrofitting of the soundproof wall is also facilitated.
【００１８】上記本発明に係る防音壁の防振支持構造の
第５特徴構成によれば、上記第４特徴構成の作用効果を
奏する中で、殊に、遮音パネル自身が振動することによ
る騒音放射を防止する効果を高めることができる。つま
り、上端側で保持するだけで遮音パネルを支持できるか
ら、構造体からの振動伝達節点を少なくできる。しか
も、下側に配置される遮音パネルを、上側に隣接配置さ
れる遮音パネルで保持できるから、前記遮音パネルを上
下に連設することが容易となり、簡単に防音壁を形成す
ることが可能になる。According to the fifth aspect of the vibration-insulating support structure of the sound-insulating wall according to the present invention, in particular, the noise emission due to the vibration of the sound-insulating panel itself can be obtained in the effects of the fourth aspect. Can be improved. That is, since the sound insulation panel can be supported only by holding it at the upper end side, the number of vibration transmission nodes from the structure can be reduced. Moreover, since the sound insulation panel arranged on the lower side can be held by the sound insulation panel arranged adjacently on the upper side, it is easy to connect the sound insulation panels vertically and the sound insulation wall can be easily formed. Become.
【００１９】[0019]
【発明の実施の形態】以下、本発明に係る防音壁の防振
支持構造の実施形態の一例ついて図面を参照しながら説
明する。図１は本発明に係る防振支持構造によって防音
壁を取り付けた構築物の一例を示す工場外壁部の側断面
図であり、図２はその弾性支持機構の一例を示す建物要
部の側断面図であり、図３は防音壁の取付部における建
物要部の正面図であり、図４は弾性支持機構の一例を示
す側面図であり、図５は防音壁の弾性支持構造を示す要
部側面図であり、図６は弾性支持構造を示す分解斜視図
であり、図７は弾性支持機構の作用モデルを示す作用説
明図である。尚、上記従来の技術に用いた図１１におけ
る要素と同一の要素乃至同様の機能を果たす要素につい
ては、先の図１１に付した符号と同一の、或いは関連す
る符号を付し、詳細の説明の一部を省略する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of an anti-vibration support structure for a soundproof wall according to the present invention. FIG. 1 is a side cross-sectional view of a plant outer wall portion showing an example of a structure to which a soundproof wall is attached by a vibration-proof support structure according to the present invention, and FIG. FIG. 3 is a front view of a main part of the building at a mounting portion of the soundproof wall, FIG. 4 is a side view showing an example of the elastic support mechanism, and FIG. 5 is a side view of the main part showing an elastic support structure of the soundproof wall. FIG. 6 is an exploded perspective view showing the elastic support structure, and FIG. 7 is an operation explanatory view showing an operation model of the elastic support mechanism. Note that the same elements as those in FIG. 11 used in the above-described conventional technique or elements that perform similar functions are denoted by the same or related reference numerals as those in FIG. 11 and described in detail. Is partially omitted.
【００２０】既存の工場建物に既設の外壁の外側に、防
音壁を付設した例を用いて、以下に図１を参照しなが
ら、本発明に係る防音壁の防振支持構造につき説明す
る。構築物８は内部に騒音及び振動の発生源を収容する
ものである。図示の工場として用いられている構築物８
は、鉄骨造りの既存のものであり、外壁部はスレート壁
２８で形成されている。前記騒音及び振動の発生源たる
ルーツブロア、エアコンプレッサ等の機器は、前記構築
物８の３階に防振ゴムを防振材１２として介装して床面
に据え付けられいる。従って、前記３階の床には前記機
器の振動が伝達されて、前記構築物８の躯体自身が振動
する。このために、前記スレート壁２８の外側に新たに
防音壁１を施工したのである。Using an example in which a soundproof wall is provided outside an existing outer wall in an existing factory building, a vibration-proof support structure of the soundproof wall according to the present invention will be described below with reference to FIG. The building 8 contains a source of noise and vibration inside. Construction 8 used as factory shown
Is an existing steel structure, and its outer wall is formed by a slate wall 28. Devices such as a roots blower and an air compressor, which are sources of the noise and vibration, are installed on the floor surface with a vibration-proof rubber 12 as a vibration-proof material 12 on the third floor of the building 8. Therefore, the vibration of the equipment is transmitted to the third floor, and the frame itself of the building 8 vibrates. For this reason, the soundproof wall 1 was newly constructed outside the slate wall 28.
【００２１】前記防音壁１は、前記構築物８に固定され
たブラケット９に本発明に係る弾性支持機構３を設け、
その弾性支持機構３で支持した遮音パネル２を連設して
形成する。前記弾性支持機構３としては、例えば、図２
に示すように、下方の基体部６と上方に配置された支持
部５との間に防振ゴムからなる一対の弾性材４を介装し
たものが用いられる。図示の例においては、前記弾性支
持機構３を、前記遮音パネル２の幅方向に一対を並べ
て、取付ボルト７で前記ブラケット９上に固定して、前
記遮音パネル２を、夫々の弾性支持機構３に取付ボルト
７で固定してある。The soundproof wall 1 is provided with an elastic support mechanism 3 according to the present invention on a bracket 9 fixed to the building 8,
The sound insulation panel 2 supported by the elastic support mechanism 3 is formed continuously. As the elastic support mechanism 3, for example, FIG.
As shown in FIG. 2, a pair of elastic members 4 made of a vibration-proof rubber are interposed between a lower base portion 6 and a support portion 5 arranged above. In the illustrated example, a pair of the elastic support mechanisms 3 are arranged in the width direction of the sound insulation panel 2 and fixed on the bracket 9 with mounting bolts 7. Is fixed with mounting bolts 7.
【００２２】前記弾性支持機構３は、図３に示すよう
に、左右対称に形成してあり、前記弾性材４は、前記基
体部６に形成された一対の弾性材保持斜面６ａ上に取り
付けられ、前記支持部５に形成された一対の弾性支持斜
面５ａとの間に狭持されて、前記基体部６と、前記弾性
材４と、前記支持部５とは一体に形成されている（図４
参照）。前記弾性材保持斜面６ａは、前記弾性支持機構
３の対称軸に向けて傾斜させた斜面で形成され、前記弾
性支持斜面５ａは、前記対称軸から離れる方向に向けて
傾斜させた斜面で形成され、前記弾性材保持斜面６ａと
前記弾性支持斜面５ａとの間に前記弾性材４を狭持固定
した状態で、前記弾性材保持斜面６ａと前記弾性支持斜
面５ａとは平行面に形成されている（図３参照）。As shown in FIG. 3, the elastic support mechanism 3 is formed symmetrically to the left and right, and the elastic member 4 is mounted on a pair of elastic member holding slopes 6a formed on the base portion 6. The base portion 6, the elastic member 4, and the support portion 5 are integrally formed by being sandwiched between a pair of elastic support slopes 5a formed on the support portion 5 (FIG. 4
reference). The elastic material holding slope 6a is formed by a slope inclined toward the axis of symmetry of the elastic support mechanism 3, and the elastic support slope 5a is formed by a slope inclined away from the axis of symmetry. The elastic material holding slope 6a and the elastic supporting slope 5a are formed in parallel with the elastic material 4 being held and fixed between the elastic material holding slope 6a and the elastic supporting slope 5a. (See FIG. 3).
【００２３】前記基体部６の、前記弾性材保持斜面６ａ
の反対側は前記対称軸を法線とする平坦な取付面６ｂに
形成してあり、前記支持部５の、前記弾性支持斜面５ａ
の反対側も同様に前記対称軸を法線とする平坦な支持面
５ｂに形成されている。図示の例においては、前記弾性
材保持斜面６ａの面間角度は１００°に、前記弾性支持
斜面５ａの面間角度は２６０°に、夫々形成してある。
このように構成してあるから、この弾性支持機構３にお
いては、前記対称軸方向の荷重を前記支持面５ｂに受け
た場合には、対称の状態において最も安定しており、横
方向にずれた場合には、前記対称の状態に戻ろうとする
復元特性を有している。従って、前記基体部６をブラケ
ットに取り付け、前記支持部５で前記遮音パネル２を支
持すれば、前記遮音パネル２は極めて安定して支持でき
る。The elastic material holding slope 6a of the base portion 6
Is formed on a flat mounting surface 6b whose normal is the symmetry axis, and the elastic support slope 5a of the support portion 5
Is formed on a flat support surface 5b whose normal line is the symmetry axis. In the illustrated example, the surface angle of the elastic material holding slope 6a is formed at 100 °, and the surface angle of the elastic supporting slope 5a is formed at 260 °.
With this configuration, when the elastic support mechanism 3 receives the load in the symmetric axis direction on the support surface 5b, the elastic support mechanism 3 is most stable in the symmetric state, and is shifted in the lateral direction. In such a case, it has a restoring characteristic of trying to return to the symmetrical state. Therefore, if the base part 6 is attached to a bracket and the sound insulating panel 2 is supported by the support part 5, the sound insulating panel 2 can be supported very stably.
【００２４】上記例示した弾性支持機構３の力学的モデ
ルは、図７（イ）に示すように、対称軸と方向を共にす
る荷重作用軸Ｚに対して、方向を異にして前記荷重作用
軸Ｚに対して傾斜した弾性支持軸Ｚｅを２軸の力の作用
軸Ｚ１とする一対の減衰振動系Ｘ，Ｘで表現できる。詳
細の説明は省略するが、上記一対の減衰振動系Ｘ，Ｘ
は、同図（ロ）に示すような等価モデルに置き換えて表
現できる。つまり、前記一対の減衰振動系Ｘ，Ｘの代わ
りに、前記荷重作用軸Ｚを鉛直方向の力の作用軸Ｚ２と
する鉛直方向の減衰振動系Ｙ１と、前記荷重作用軸Ｚに
直交する水平方向の力の作用軸Ｚ３を有する水平方向の
減衰振動系Ｙ２との合成振動系として表現することがで
きる。As shown in FIG. 7A, the mechanical model of the above-described elastic support mechanism 3 has a different direction from the load acting axis Z having the same direction as the symmetry axis. It can be expressed by a pair of damping vibration systems X and X, in which the elastic support axis Ze inclined with respect to Z is set as a biaxial force acting axis Z1. Although the detailed description is omitted, the pair of damped vibration systems X, X
Can be replaced with an equivalent model as shown in FIG. That is, instead of the pair of damping vibration systems X, X, a vertical damping vibration system Y1 having the load acting axis Z as a vertical force acting axis Z2, and a horizontal direction orthogonal to the load acting axis Z. Can be expressed as a composite vibration system with the horizontal damping vibration system Y2 having the force acting axis Z3.
【００２５】ここで、前記一対の弾性支持軸Ｚｅ，Ｚｅ
（同図（イ）参照）の間の角度の設定条件によって、前
記鉛直方向の減衰振動系Ｙ１のバネ常数は比較的大き
く、且つ、その変位に対する粘性抵抗は比較的小低く
し、前記水平方向の減衰振動系Ｙ２のバネ常数は比較的
小さく、且つ、その変位に対する粘性抵抗を比較的高く
することができる。従って、防音壁１は、十分な支持力
で支持しながら、側方から弾性支持することなく、その
面の法線方向に伝達される振動を効果的に減衰できるの
である。この振動減衰能は、前記一対の弾性支持軸Ｚ
ｅ，Ｚｅを共に含む面を前記防音壁１の面に直交するよ
うにすれば、最も効果的に高めることができるのであ
る。Here, the pair of elastic support shafts Ze, Ze
The spring constant of the vertical damping vibration system Y1 is relatively large, the viscous resistance to its displacement is relatively small and low, and the horizontal The spring constant of the damping vibration system Y2 can be relatively small, and the viscous resistance to the displacement can be relatively high. Accordingly, the soundproof wall 1 can effectively attenuate the vibration transmitted in the normal direction of the surface without supporting elastically from the side while supporting with sufficient supporting force. This vibration damping capacity is determined by the pair of elastic support shafts Z.
If the surface including both e and Ze is made to be orthogonal to the surface of the soundproof wall 1, the height can be increased most effectively.
【００２６】尚、図１に示した工場の例においては、図
４に示すように、前記ブラケット９の上面に前記弾性支
持機構３の構成部材である基体部６の取付面６ｂに植設
してある取付ボルト７を用いて取り付け、前記遮音パネ
ル２を取り付けるための胴ぶち１５に取り付けた支持部
材１３を、同じく前記弾性支持機構３の構成部材である
支持部５の支持面５ｂに植設してある取付ボルト７を用
いて前記支持部５に固定してある。そして、安全確保の
ために、前図５に示すように、記弾性支持機構３の内側
で、前記ブラケット９の上面に立設したＣ型鋼からなる
倒れ防止部材１７に、締結部材１１を用いて、防振ゴム
からなる緩衝板材１８を介装して前記支持部材１３を弾
性支持してある。尚、前記締結部材１１の前記支持部材
１３側には、前記緩衝板材１８のボルト挿通孔に内嵌自
在なブッシュ部を備えた防振ゴムからなる緩衝スペーサ
１９を前記支持部材１３との間にワッシャと共に介装し
てある。In the example of the factory shown in FIG. 1, as shown in FIG. 4, a plant is provided on the upper surface of the bracket 9 on the mounting surface 6b of the base 6 which is a component of the elastic support mechanism 3. The support member 13 attached to the body edge 15 for attaching the sound insulation panel 2 is mounted on the support surface 5 b of the support portion 5, which is also a component of the elastic support mechanism 3, by using the attached mounting bolt 7. It is fixed to the support part 5 using mounting bolts 7 which are provided. Then, in order to ensure safety, as shown in FIG. 5 above, a fastening member 11 is used for a fall prevention member 17 made of C-shaped steel erected on the upper surface of the bracket 9 inside the elastic support mechanism 3. The support member 13 is elastically supported with a buffer plate 18 made of a vibration-proof rubber. In addition, a buffer spacer 19 made of a vibration-proof rubber having a bush portion that can be fitted in a bolt insertion hole of the buffer plate 18 is provided between the support member 13 and the support member 13 side of the fastening member 11. Interposed with washers.
【００２７】前記支持部材１３は、図６に示すように、
Ｈ形鋼の両端部に鋼板を溶接して、他端部を前記倒れ防
止部材１７に取り付けてある（図は胴ぶち１５側から見
た斜視図である。）。前記支持部材１３は、Ｈ形鋼から
なるフレーム１４に溶接して取り付け、前記フレーム１
４に前記遮音パネル２を取り付けるための胴ぶち１５を
取り付ける。前記胴ぶち１５には、角鋼管を用いる。前
記遮音パネル２は、前記胴ぶち１５にピン１６を打ち込
んで止め付けられる。そして、前記遮音パネル２の隣接
する端部同士は、互いに係合させて連結してある（図２
参照）。The support member 13 is, as shown in FIG.
A steel plate is welded to both ends of the H-section steel, and the other end is attached to the fall prevention member 17 (the figure is a perspective view as viewed from the side of the trunk 15). The support member 13 is attached by welding to a frame 14 made of H-section steel,
A body edge 15 for attaching the sound insulation panel 2 is attached to 4. A square steel pipe is used for the body edge 15. The sound insulation panel 2 is fixed by driving a pin 16 into the body edge 15. Adjacent ends of the sound insulation panel 2 are engaged with each other and connected to each other (FIG. 2).
reference).
【００２８】〔別実施形態〕上記実施の形態に示した形
態と異なる実施の形態の一部の例について以下に説明す
る。[Another Embodiment] Some examples of the embodiment different from the embodiment described above will be described below.
【００２９】〈１〉上記実施の形態においては、工場建
物に既設の外壁の外側に、防音壁を付設した例について
説明したが、本発明は、工場建物のみに適用されるもの
ではなく、内部に騒音及び振動の発生源を有する構築物
であればどのような構造物であっても有効に機能するも
ので、構築物の種類を限定するものではない。また、内
部に有する騒音及び振動の発生源は固定されたものに限
らず、可動のもの、移動するもの、短期的に構築物内に
搬入され、或いは、走行進入するものをも包含するもの
である。従って、前記構築物及び前記騒音及び振動の発
生源には、例えば、立体駐車場や倉庫のように、車両が
進入して、その車両が騒音及び振動の発生源となる構築
物も含まれ、前記車両は前記騒音及び振動の発生源に含
まれる。つまり、車両は、場内を走行するに際して床面
に振動を生じさせ、その車両自体から騒音を発生するか
らである。また、倉庫であれば、保管材の揚重等に際し
て揚重機等が騒音及び振動を発生し、揚重される保管材
が倉庫の床に振動をもたらすのである。<1> In the above-described embodiment, an example in which a soundproof wall is provided outside the existing outer wall of the factory building has been described. However, the present invention is not applied only to the factory building, but is applied to the inside of the factory building. Any structure can be effectively used as long as it has a noise and vibration source, and the type of the structure is not limited. The sources of noise and vibrations inside are not limited to fixed ones, but also include movable ones, moving ones, and those that are brought into a building or run in a short term. . Accordingly, the building and the noise and vibration sources include, for example, a building in which a vehicle enters and the vehicle is a source of noise and vibration, such as a multilevel parking lot or a warehouse. Are included in the noise and vibration sources. That is, the vehicle generates vibrations on the floor surface when traveling in the hall, and generates noise from the vehicle itself. In the case of a warehouse, a hoisting machine or the like generates noise and vibration when the storage material is lifted, and the storage material to be lifted causes vibration on the floor of the warehouse.
【００３０】〈２〉上記実施の形態においては、構築物
８として、鉄骨造りの既存のものであり、外壁部はスレ
ート壁２８で形成されている工場を例に挙げて説明した
が、例えば防音壁を既に設置してある場合においても、
上記〈１〉に例示した立体駐車場の場合に、車両のエン
ジン騒音はその防音壁で遮断されていても、場内の車両
の走行に伴って、躯体に振動が生じ、この振動に伴って
前記既設の防音壁が振動して、その防音壁自身が二次的
な騒音発生源となっている場合もあり、こうした構築物
に対しても本発明は効果的である。例えば、前記既設の
防音壁の支持構造のみを、本発明に係る弾性支持構造に
置き換えるだけで、十分に二次騒音発生を防止できるの
である。<2> In the above embodiment, the structure 8 is an existing steel structure, and the outer wall portion is described as an example of a factory formed by the slate wall 28. Even if you have already installed
In the case of the multi-story parking lot exemplified in the above <1>, even when the engine noise of the vehicle is blocked by the soundproof wall, vibration occurs in the frame as the vehicle travels in the hall, and the vibration is generated along with the vibration. The existing noise barrier may vibrate, and the noise barrier itself may be a secondary noise source. The present invention is also effective for such structures. For example, secondary noise can be sufficiently prevented from being generated only by replacing only the support structure of the existing soundproof wall with the elastic support structure according to the present invention.
【００３１】〈３〉上記実施の形態においては、弾性支
持機構３の弾性支持軸Ｚｅを２軸のみで構成した例につ
いて説明したが、さらに別の弾性支持軸を追加してもよ
い。例えば、弾性支持斜面５ａを角錐の面で構成し、夫
々の面に対応する弾性材保持斜面６ａを設けることもで
きる。前記角錐としては、三角錐（弾性支持軸は３軸と
なる）、四角錐（弾性支持軸は４軸となる）等任意に選
択可能である。<3> In the above embodiment, an example was described in which the elastic support shaft Ze of the elastic support mechanism 3 was composed of only two axes, but another elastic support shaft may be added. For example, the elastic supporting slope 5a may be formed of pyramid surfaces, and the elastic material holding slopes 6a corresponding to the respective surfaces may be provided. The pyramid can be arbitrarily selected, such as a triangular pyramid (the elastic support axis has three axes), a quadrangular pyramid (the elastic support axis has four axes), and the like.
【００３２】〈４〉上記実施の形態においては、弾性支
持機構３の例として、基体部６の弾性材保持斜面６ａと
支持部５の弾性支持斜面５ａとの間に弾性材４を介装し
て、一体に形成したものを図示して説明したが、前記弾
性支持機構３は、必ずしも一体に構成されたものである
必要はなく、また、前記弾性材４が弦巻バネ、板バネ等
であってもよい。従って、前記基体部６に前記弾性材保
持斜面６ａを備えていなくてもよく、また、前記支持部
５に前記弾性支持斜面５ａを備えていなくてもよい。<4> In the above embodiment, as an example of the elastic support mechanism 3, the elastic material 4 is interposed between the elastic support slope 6 a of the base 6 and the elastic support slope 5 a of the support 5. Thus, the elastic support mechanism 3 need not necessarily be integrally formed, and the elastic member 4 may be a helical spring, a leaf spring, or the like. You may. Therefore, the base portion 6 does not need to include the elastic material holding slope 6a, and the support portion 5 does not need to include the elastic support slope 5a.
【００３３】〈５〉上記〈４〉に例示したバネ等を用い
る場合においては、その弾性支持方向に、前記基体部６
と前記支持部５との間で、それらの相対変位に対して粘
性的な抵抗をもたらす緩衝部材２０を介装してあればさ
らによい。前記緩衝部材２０としては、例えば図８に示
すような、オリフィス２４を内蔵する流体抵抗を利用す
る緩衝機構２１を設けてあってもよい。図示のものは、
前記基体部６に取り付けられる外筒部２２と、前記支持
部５に取り付けられ、前記外筒部２２に対して前記弾性
支持軸Ｚｅ方向に摺動自在に気密に内嵌される内筒部２
３とからなり、前記内筒部２３の前記外筒部２２に内挿
される先端部には小口を設けてオリフィス２４を形成
し、前記先端部が浸る深さに前記外筒部２２内に緩衝流
体２５を満たした流体抵抗型の緩衝機構２１である。<5> In the case where the spring or the like exemplified in the above <4> is used, the base 6
It is more preferable that a buffer member 20 for providing a viscous resistance to the relative displacement between them and the support portion 5 is provided. As the buffer member 20, for example, a buffer mechanism 21 using a fluid resistance having a built-in orifice 24 as shown in FIG. 8 may be provided. The one shown is
An outer cylinder portion 22 attached to the base portion 6; and an inner cylinder portion 2 attached to the support portion 5 and airtightly fitted inside the outer cylinder portion 22 so as to be slidable in the elastic support axis Ze direction.
The orifice 24 is formed at the tip of the inner cylinder 23 which is inserted into the outer cylinder 22 to form an orifice 24. A fluid resistance type buffer mechanism 21 filled with a fluid 25.
【００３４】〈６〉上記実施の形態においては、弾性支
持機構３を構成するのに、支持部５を基体部６の上方に
位置させて、弾性支持軸Ｚｅが、下方ほど離間するよう
にして弾性材４を前記基体部６と前記支持部５との間に
狭持させた例について説明したが、前記基体部６の下方
に前記支持部５を位置させて、前記支持部５を弾性的に
前記基体部６から吊り下げるように前記弾性支持機構３
を構成してあってもよい。例えば、図９に示すように、
基体部６の上面に弾性材保持斜面６ａを形成すると共
に、その弾性材保持斜面６ａに弾性材４を張り付け、そ
の弾性材保持斜面６ａにほぼ直交する貫通穴２６を、前
記弾性材４と前記基体部６とに形成して、前記基体部６
に貫通した貫通穴２６に挿通した吊下支持桿２７を内嵌
可能な貫通穴２６を支持部５に形成し、前記支持部５を
前記基体部６に弾性支持するようにしてあってもよい。<6> In the above-described embodiment, the elastic support mechanism 3 is configured such that the support portion 5 is positioned above the base portion 6 and the elastic support shaft Ze is further separated downward. Although the example in which the elastic member 4 is held between the base portion 6 and the support portion 5 has been described, the support portion 5 is positioned below the base portion 6 and the support portion 5 is elastically moved. The elastic support mechanism 3 is suspended from the base 6
May be configured. For example, as shown in FIG.
An elastic material holding slope 6a is formed on the upper surface of the base portion 6, and the elastic material 4 is attached to the elastic material holding slope 6a. A through hole 26 substantially perpendicular to the elastic material holding slope 6a is formed with the elastic material 4 and the elastic material holding slope 6a. The base part 6 is formed on the base part 6.
The support portion 5 may be formed with a through hole 26 into which a suspension support rod 27 inserted through the through hole 26 penetrated through the support portion 5 may be elastically supported. .
【００３５】〈７〉図９に示した例においては、２軸で
構成される一対の弾性支持軸Ｚｅ，Ｚｅを、前記基体部
６側から前記支持部５側にかけて次第に離間するように
配置したが、このような吊下支持の場合には、例えば図
１０に示すように、前記一対の弾性支持軸Ｚｅ，Ｚｅ
は、前記基体部６側で離間し、前記支持部５側で近接す
るように配置してある方が、復元性に優れたものとな
る。<7> In the example shown in FIG. 9, a pair of elastic support shafts Ze and Ze composed of two axes are arranged so as to be gradually separated from the base portion 6 side to the support portion 5 side. However, in the case of such a suspension support, as shown in FIG. 10, for example, the pair of elastic support shafts Ze, Ze
If they are arranged so as to be separated from each other on the base part 6 side and close to each other on the support part 5 side, the resilience is excellent.
【００３６】〈８〉上記実施の形態においては、支持部
５の弾性支持斜面５ａと基体部６の弾性材保持斜面６ａ
とを平行面に形成した例について説明したが、弾性材４
として防振ゴムを用いる場合に好ましい態様を示したも
のであって、前記弾性支持斜面５ａと前記弾性材保持斜
面６ａとは平行に形成していなくてもよい。また、前記
防振ゴムを弾性材４とした場合においても、弾性支持軸
Ｚｅの方向に荷重が作用した場合に、前記防振ゴムに対
して前記弾性材保持斜面６ａ或いは前記弾性支持斜面５
ａの面に沿っての滑り力が作用するほどに面間角度が大
きくならなければ差し支えない。<8> In the above embodiment, the elastic support slope 5a of the support portion 5 and the elastic material holding slope 6a of the base portion 6
Have been described as being parallel to each other.
This is a preferred embodiment when a vibration-proof rubber is used, and the elastic support slope 5a and the elastic material holding slope 6a may not be formed in parallel. Further, even when the vibration isolating rubber is made of the elastic material 4, when the load is applied in the direction of the elastic supporting axis Ze, the elastic material holding slope 6a or the elastic supporting slope 5 is applied to the vibration isolating rubber.
There is no problem if the inter-plane angle is not large enough to apply a sliding force along the surface a.
【図１】本発明に係る防音壁の防振支持構造を適用した
工場の一例を示す側断面図FIG. 1 is a side sectional view showing an example of a factory to which a vibration-proof support structure for a soundproof wall according to the present invention is applied.
【図２】本発明に係る防振支持構造の一例を示す建物要
部の側断面図FIG. 2 is a side sectional view of a main part of a building showing an example of a vibration-proof support structure according to the present invention.
【図３】図２に示した防振支持構造の要部正面視断面図FIG. 3 is a front sectional view of a main part of the vibration isolation support structure shown in FIG. 2;
【図４】図２に示した弾性支持構造の斜視図FIG. 4 is a perspective view of the elastic support structure shown in FIG. 2;
【図５】図２の要部拡大図FIG. 5 is an enlarged view of a main part of FIG. 2;
【図６】図２の要部分解斜視図FIG. 6 is an exploded perspective view of a main part of FIG. 2;
【図７】本発明に係る弾性支持構造の一例に関する作用
説明図FIG. 7 is an operation explanatory view of an example of the elastic support structure according to the present invention.
【図８】本発明に係る防振支持構造の他の例を示す要部
側面図FIG. 8 is a main part side view showing another example of the vibration-proof support structure according to the present invention.
【図９】本発明に係る防振支持構造の他の例に関する概
念図FIG. 9 is a conceptual diagram relating to another example of the anti-vibration support structure according to the present invention.
【図１０】本発明に係る防振支持構造の他の例に関する
概念図FIG. 10 is a conceptual diagram relating to another example of the anti-vibration support structure according to the present invention.
【図１１】従来の防音壁の防振支持構造を示す構築物の
要部縦断面図FIG. 11 is a vertical cross-sectional view of a main part of a structure showing a conventional vibration-proof supporting structure of a soundproof wall.
２ 遮音パネル ３ 弾性支持機構 ４ 弾性材 ８ 構築物 ９ ブラケット 2 Sound insulation panel 3 Elastic support mechanism 4 Elastic material 8 Building 9 Bracket
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮川 昭夫 静岡県富士市依田橋770―５ 有限会社幸 昭内 Ｆターム(参考） 2E001 DF01 DG01 DG02 FA03 GA12 HF14 HF16 LA03 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akio Miyagawa 770-5 Yodabashi, Fuji-shi, Shizuoka Fukushima Co., Ltd. F-term (reference) 2E001 DF01 DG01 DG02 FA03 GA12 HF14 HF16 LA03
Claims (5)
構築物において、その構築物から外部への騒音を防止す
る防音壁の防振支持構造であって、 前記構築物に固定されたブラケットに、前記防音壁を形
成する遮音パネルの相対振動を許容し、且つ、その相対
振動を減衰する弾性支持機構を設け、 前記弾性支持機構を、弾性材を介して前記遮音パネルを
２軸支持するように構成してある防音壁の防振支持構
造。An anti-vibration support structure of a soundproof wall for preventing noise from the structure to the outside, wherein the structure includes a source of noise and vibration generated therein, wherein the bracket is fixed to the structure. An elastic support mechanism that allows relative vibration of the sound insulation panel forming the soundproof wall and attenuates the relative vibration is provided, and the elastic support mechanism is configured to biaxially support the sound insulation panel via an elastic material. Anti-vibration support structure for soundproof walls.
面を、上下方向で前記遮音パネルに直交する方向に配置
してある請求項１記載の防音壁の防振支持構造。2. The vibration-insulating support structure for a sound-insulating wall according to claim 1, wherein a plane including two axes for supporting the sound-insulating panel is arranged in a vertical direction perpendicular to the sound-insulating panel.
軸に対して対称に配置してある請求項１又は２に記載の
防音壁の防振支持構造。3. The vibration-insulating support structure for a sound-insulating wall according to claim 1, wherein two axes supporting the sound-insulating panel are symmetrically arranged with respect to a vertical axis.
に支持してある請求項１〜３の何れか１項に記載の防音
壁の防振支持構造。4. The anti-vibration support structure for a soundproof wall according to claim 1, wherein the sound insulation panel is supported on the elastic support mechanism.
性支持機構に支持してある請求項４記載の防音壁の防振
支持構造。5. The vibration-insulating support structure for a sound-insulating wall according to claim 4, wherein said sound-insulating panel is supported at its lower end by said elastic support mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23678199A JP3478766B2 (en) | 1999-08-24 | 1999-08-24 | Anti-vibration support structure for soundproof wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23678199A JP3478766B2 (en) | 1999-08-24 | 1999-08-24 | Anti-vibration support structure for soundproof wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001059287A true JP2001059287A (en) | 2001-03-06 |
| JP3478766B2 JP3478766B2 (en) | 2003-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23678199A Expired - Lifetime JP3478766B2 (en) | 1999-08-24 | 1999-08-24 | Anti-vibration support structure for soundproof wall |
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|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7394001B2 (en) | 2020-03-30 | 2023-12-07 | 三菱重工業株式会社 | Vibration and sound insulation device |
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1999
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| JP3478766B2 (en) | 2003-12-15 |
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