JP2005240538A - Damping structure for suspended ceiling - Google Patents

Damping structure for suspended ceiling Download PDF

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JP2005240538A
JP2005240538A JP2004354148A JP2004354148A JP2005240538A JP 2005240538 A JP2005240538 A JP 2005240538A JP 2004354148 A JP2004354148 A JP 2004354148A JP 2004354148 A JP2004354148 A JP 2004354148A JP 2005240538 A JP2005240538 A JP 2005240538A
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ceiling
damper
ceiling member
suspended
vibration
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JP4241592B2 (en
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Hiroyuki Narihara
弘之 成原
Haruo Sasaki
晴夫 佐々木
Kazuo Inoue
和夫 井上
Yoji Izumo
洋治 出雲
Shinya Honda
信也 本田
Hiroshi Hibino
浩 日比野
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Taisei Corp
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Taisei Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a damping structure for suspended ceilings, which can effectively protect ceiling materials or equipment or machinery installed on them from damages during earthquakes, even if the equipment or machinery installed are very heavy. <P>SOLUTION: This is a damping structure for suspended ceilings, in which the ceiling materials 3 are supported by supports 2 hung down from the upper building structure 1, and equipment or machinery 4 are installed on the ceiling materials 3. A gap 10 to absorb horizontal relative displacements is formed between a side wall 6 of building structure 1 and ceiling materials 2, and an expandable deformation absorption material 11 is placed in the gap 10. Also, a damper 12 is installed between the ceiling materials 3 and the building structure 1 to absorb horizontal vibrations. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、半導体製造工場のクリーンルーム等に用いて好適な吊り天井の制振構造に関するものである。   The present invention relates to a suspension ceiling vibration damping structure suitable for use in a clean room or the like of a semiconductor manufacturing factory.

近年、各種の建築物において、天井部材は単に天井裏と室内とを隔離するためのものでなく、様々な機能が付与されている。例えば、事務所や工場等の建築物においては、当該天井部材の内裏に、空調・照明・音響機器などの各種設備機器を設置するとともに、上層の構造躯体から垂下された吊りボルトによって上記設備機器類の荷重を含めて天井部材を支持する吊り天井の構造が多く採用されている。   In recent years, in various buildings, the ceiling member is not merely for separating the ceiling from the interior of the room, but has various functions. For example, in buildings such as offices and factories, various equipment such as air conditioners, lighting, and acoustic equipment are installed on the inside and back of the ceiling member, and the above equipment is provided by hanging bolts suspended from the upper structural frame. Many suspended ceiling structures that support ceiling members including similar loads are employed.

図１５は、従来のこの種の吊り天井の構造を示すもので、上層の構造躯体１から吊りボルト２を垂下させ、この吊りボルト２の下端部に天井部材３を取り付けたものである。ここで、天井部材３は、天井下地として鉄骨製の野縁や野縁受け等の金物を用いた場合には、この金物に天井仕上げ材をビス止めあるいは嵌め込んだものが用いられており、上記吊りボルト２の下端部が上記金物に固定されている。そして、上記天井部材３の金物に、各種の設備機器４が取り付けられている。   FIG. 15 shows the structure of a conventional suspension ceiling of this type, in which a suspension bolt 2 is suspended from an upper structural frame 1 and a ceiling member 3 is attached to the lower end of the suspension bolt 2. Here, when the ceiling member 3 uses hardware such as a steel frame edge or a field edge receiver as a ceiling base, a ceiling finish is screwed or fitted to the hardware. A lower end portion of the suspension bolt 2 is fixed to the hardware. Various types of equipment 4 are attached to the hardware of the ceiling member 3.

また、上記構成からなる吊り天井の構造においては、地震時の天井部材３の横揺れを防止するために、必要に応じて、吊りボルト２の上端部と隣接する吊りボルト２の下端部との間に、ターンバックルや軽量形鋼をブレース状に配した振れ止め材５を設けることがある。
しかしながら、上記従来の吊り天井の構造では、吊りボルト２や天井部材３は、構造部材と異なり、あくまで仕上げ材の一部であるために、大地震に対しては、設備機器４の落下防止という最低限の要求性能を満たす限りにおいて、多少の損傷はやむを得ないものと考えられているのが現状である。 Moreover, in the structure of the suspension ceiling which consists of the said structure, in order to prevent the rolling of the ceiling member 3 at the time of an earthquake, as needed, the upper end part of the suspension bolt 2 and the lower end part of the adjacent suspension bolt 2 are provided. In some cases, an anti-sway material 5 in which a turn buckle or light-weight shaped steel is arranged in a brace shape may be provided.
However, in the conventional suspended ceiling structure, the suspension bolt 2 and the ceiling member 3 are part of the finishing material, unlike the structural member, so that the equipment apparatus 4 is prevented from falling against a large earthquake. It is considered that some damage is unavoidable as long as the minimum required performance is satisfied.

このため、図１５に示す吊り天井の構造に対して、例えば大地震が発生した場合には、図１６に示すように、設備機器４を含む天井部材３の質量に対して水平方向の慣性力が作用するため、振れ止め材５の座屈ａ、天井部材３の周辺部の破壊ｂ、側壁６の破壊ｃ、天井仕上げ材の曲がりｄや目地のズレｅ、設備機器４の移動ｆやこれによる故障、破損した天井仕上げ材の落下ｇなどの各種弊害が発生する。
この結果、仮に当該建築物の構造躯体１等が損傷を受けない場合にあっても、上述したような吊り天井における各種の損傷等の弊害に起因して、建築物の機能上重要な設備機器４が停止することにより、建築物全体の機能が停止して経済的に大きな損害を被ることが起こり得る。 Therefore, for example, when a large earthquake occurs with respect to the suspended ceiling structure shown in FIG. 15, the inertial force in the horizontal direction with respect to the mass of the ceiling member 3 including the equipment 4 as shown in FIG. Therefore, buckling of the steady rest material 5, destruction b of the peripheral portion of the ceiling member 3, destruction c of the side wall 6, bending d of the ceiling finishing material, misalignment of joints e, movement f of the equipment 4 and this Various troubles such as failure due to the fall and falling g of the damaged ceiling finish material occur.
As a result, even if the structural frame 1 of the building is not damaged, the equipment which is important for the function of the building due to various damages such as the above-mentioned various damages on the suspended ceiling. When 4 stops, the function of the whole building stops, and it can happen that a large damage is economically caused.

特に、半導体製造工場のクリーンルームなどでは、大型の空調用のファンフィルターユニット等の多数の重量の嵩む重要な設備機器４が設置されており、これらを含めた天井部材３は相当な重量物となるために、上記損傷が発生して、工場の操業に重大な影響を与えることが避けられない。   In particular, in a clean room of a semiconductor manufacturing factory or the like, a large number of heavy equipment devices 4 such as large air-conditioning fan filter units are installed, and the ceiling member 3 including these is a considerable heavy object. For this reason, it is inevitable that the above-mentioned damage occurs and seriously affects the operation of the factory.

一方、吊り天井に作用する地震時の振動を低減する制振構造としては、下記特許文献１に見られるように、コイルばねの上端部に重りを設けるとともに天井材の固有周期に同調させた振動防止装置を用い、上記コイルばねの下端部を天井材の上面に固定することにより、地震時に天井材に作用する振動を、上記重りの慣性力による逆周期で相殺させて、上記天井材の振動を低減化させたものが提案されている。
特開２００３−１３９１９１号公報 On the other hand, as a vibration suppression structure that reduces vibration during an earthquake acting on a suspended ceiling, as shown in Patent Document 1 below, a vibration is provided at the upper end of the coil spring and synchronized with the natural period of the ceiling material. By using a prevention device and fixing the lower end of the coil spring to the top surface of the ceiling material, the vibrations acting on the ceiling material during an earthquake are canceled out in the reverse period due to the inertial force of the weight, and the vibration of the ceiling material The thing which reduced this is proposed.
JP 2003-139191 A

しかしながら、上記従来の吊り天井の制振構造は、比較的軽量で、かつ短い固有周期を有する吊り天井に対しては、相応の制振効果を発揮するものの、上述したような重量が大きく、よって固有周期が長い吊り天井に適用した場合や、あるいは長周期の地震が発生した場合には、振動防止装置の固有周期を合わせることが困難であり、よって実用上、期待する効果が得られないという問題点がある。   However, the above conventional suspension ceiling vibration damping structure is relatively light and has a corresponding damping effect for a suspended ceiling having a short natural period, but the weight as described above is large. When applied to a suspended ceiling with a long natural period, or when a long-period earthquake occurs, it is difficult to match the natural period of the vibration prevention device, so that the expected effect cannot be obtained in practice. There is a problem.

さらに、半導体製造工場のクリーンルーム等における吊り天井の構造として、構造躯体から長ボルトを介してプレナムチャンバー天板部材を吊設し、このプレナムチャンバー天井部材の下方に、上記長ボルトの下端に接続した長ボルトによって上記天井部材を吊設するとともに、この天井部材に、ファンフィルターユニットや照明器具、電源線、制御線等の設備機器を取り付けた吊り天井が知られている。   Furthermore, as a suspended ceiling structure in a clean room or the like of a semiconductor manufacturing factory, a plenum chamber top plate member is suspended from a structural housing via a long bolt, and connected to the lower end of the long bolt below the plenum chamber ceiling member. A suspended ceiling is known in which the ceiling member is suspended by a long bolt, and a facility device such as a fan filter unit, a lighting fixture, a power supply line, or a control line is attached to the ceiling member.

このような吊り天井の構造にあっては、プレナムチャンバー天井部材を設けている結果、天井部材の吊り長さが大きくなるのに対して、当該天井部材には、上述したようにファンフィルターユニット５等の重量が嵩む各種の設備機器が取り付けられている結果、地震が発生した際の天井部材の応答が一段と大きくなってしまうために、より一層効果的な制振構造の開発が要請されている。   In such a suspended ceiling structure, as a result of providing the plenum chamber ceiling member, the suspended length of the ceiling member increases, whereas the ceiling member includes the fan filter unit 5 as described above. As a result of the installation of various types of equipment that are heavy, etc., the response of the ceiling member becomes even greater when an earthquake occurs, so the development of a more effective damping structure is required. .

本発明は、かかる事情に鑑みてなされたもので、重量の大きな設備機器を設置した場合においても、地震時における天井部材やこれに設置された設備機器が損傷を受けることを効果的に防止することができる、吊り天井の制振構造を提供することを課題とするものである。   The present invention has been made in view of such circumstances, and even when heavy equipment is installed, it effectively prevents the ceiling member and equipment installed in the earthquake from being damaged. An object of the present invention is to provide a suspension ceiling vibration damping structure that can be used.

上記課題を解決するために、請求項１に記載の発明は、上層の構造躯体から垂下された支承部材によって天井部材が支持されるとともに、上記天井部材に設備機器が取り付けられてなる吊り天井の制振構造であって、上記天井部材と上記構造躯体の側壁との間または上記天井部材の中央部分と周辺部分との間に、水平方向の相対変位を吸収する間隙部を形成し、当該間隙部に伸縮可能な変形吸収部材を介装するとともに、上記天井部材と上記構造躯体との間または上記天井部材の中央部分と上記構造躯体もしくは上記天井部材の周辺部分との間に、水平方向の振動を吸収する制振ダンパーを設置したことを特徴とするものである。   In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a suspended ceiling in which a ceiling member is supported by a support member suspended from an upper structural frame, and equipment is attached to the ceiling member. In the vibration damping structure, a gap that absorbs a horizontal relative displacement is formed between the ceiling member and the side wall of the structural housing or between the central portion and the peripheral portion of the ceiling member, and the gap And a deformable absorbing member that can be expanded and contracted at a portion, and between the ceiling member and the structural housing or between a central portion of the ceiling member and a peripheral portion of the structural housing or the ceiling member. It is characterized by installing a damping damper that absorbs vibration.

ここで、上記上層の構造躯体とは、床スラブや梁、あるいはこれらから一体的に垂下された天井の吊り構造体であり、側壁とは、空間の間仕切り壁、外壁、垂れ壁等の天井周囲に配された壁状部材をいう。
また、制振ダンパーとしては、オイルダンパー、粘弾性ダンパー、ガスダンパー、摩擦ダンパーあるいはこれらを組み合わせたものが使用可能である。 Here, the upper structural frame is a floor slab, a beam, or a suspended structure of a ceiling that is integrally suspended from these, and the side wall is a ceiling partition such as a partition wall, outer wall, or hanging wall of the space. The wall-shaped member arranged in
As the vibration damper, an oil damper, a viscoelastic damper, a gas damper, a friction damper, or a combination of these can be used.

また、請求項２に記載の発明は、請求項１に記載の設備機器が、上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材側または天井部材の中央部分側に取り付けられていることを特徴とするものである。   In the invention according to claim 2, the equipment according to claim 1 is attached to the ceiling member side or the central part side of the ceiling member that can be displaced relative to the structural frame by the gap. It is characterized by being.

さらに、請求項３に記載の発明は、請求項１または２に記載の発明において、上記構造躯体にダンパー接合部材の上端部を剛接合し、上記ダンパー接合部材の下端部と上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材または上記天井部材の中央部分との間に上記制振ダンパーを設置したことを特徴とするものである。   Furthermore, the invention according to claim 3 is the invention according to claim 1 or 2, wherein the upper end portion of the damper joining member is rigidly joined to the structural housing, and the lower end portion and the gap portion of the damper joining member The vibration damping damper is installed between the ceiling member or a central portion of the ceiling member that can be relatively displaced with respect to the structural frame.

他方、請求項４に記載の発明は、請求項１または２に記載の発明において、上記構造躯体から垂下された上記支承部材を介して第２の天井部材が吊設され、この第２の天井部材から垂下された上記支承部材を介して上記天井部材が吊設されてなり、上記構造躯体に耐震支柱の上端部を剛接合し、上記耐震支柱の下端部に上記第２の天井部材を剛接合して両者を一体的に連結するとともに、上記第２の天井部材にダンパー接合部材の上端部を剛接合し、上記ダンパー接合部材の下端部と上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材または上記天井部材の中央部分との間に上記制振ダンパーを設置したことを特徴とするものである。   On the other hand, the invention according to claim 4 is the invention according to claim 1 or 2, wherein the second ceiling member is suspended from the support member suspended from the structural housing, and the second ceiling member is suspended. The ceiling member is suspended through the support member suspended from the member, the upper end of the earthquake-proof column is rigidly joined to the structural frame, and the second ceiling member is rigidly connected to the lower end of the earthquake-resistant column. The upper and lower ends of the damper joint member are rigidly joined to the second ceiling member, and are relatively displaced with respect to the structural housing by the lower end portion and the gap portion of the damper joint member. The damping damper is installed between the ceiling member or the central portion of the ceiling member.

そして、請求項５に記載の発明は、請求項１〜４のいずれかに記載の発明において、複数の上記制振ダンパーが、互いの水平方向の静的反力が相殺される角度で放射状に設置されていることを特徴とするものである。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the plurality of damping dampers are radially formed at an angle at which the horizontal static reaction forces cancel each other. It is characterized by being installed.

請求項１〜５のいずれかに記載の吊り天井の制振構造によれば、天井部材と構造躯体の側壁との間、または上記天井部材の中央部分と周辺部分との間に間隙部を形成している結果、構造躯体から切り離された上記天井部材あるいは天井部材の中央部分には、地震時に大きな水平方向の変位が生じるが、これら天井部材あるいは天井部材の中央部分と、構造躯体あるいは天井部材の周辺部分との間に、水平方向の振動を吸収する制振ダンパーを設置しているので、上記天井部材あるいは天井部材の中央部分の振動を効果的に低減化させることができる。   According to the vibration damping structure for a suspended ceiling according to any one of claims 1 to 5, a gap is formed between the ceiling member and the side wall of the structural frame, or between the central portion and the peripheral portion of the ceiling member. As a result, a large horizontal displacement occurs at the time of an earthquake in the ceiling member or the central portion of the ceiling member separated from the structural housing. However, the ceiling member or the central portion of the ceiling member and the structural housing or the ceiling member Since the damping damper which absorbs a horizontal vibration is installed between the peripheral part of this, the vibration of the said ceiling member or the center part of a ceiling member can be reduced effectively.

しかも、天井部材と構造躯体の側壁との間または上記天井部材の中央部分と周辺部分との間に生じる水平方向の相対変位を、上記間隙部によって吸収することができる。
この結果、重量の大きな設備機器を設置した場合においても、地震時における天井部材やこれに設置された設備機器が損傷を受けることを効果的に防止することができる。 In addition, the horizontal relative displacement that occurs between the ceiling member and the side wall of the structural housing or between the central portion and the peripheral portion of the ceiling member can be absorbed by the gap portion.
As a result, even when heavy equipment is installed, it is possible to effectively prevent the ceiling member and equipment installed in the earthquake from being damaged.

加えて、上記間隙部に伸縮可能な変形吸収部材を介装しているので、室内の仕上げ外観を損なうことが無く、しかも、例えばクリーンルーム等の建物に適用した場合においても、上記間隙部を形成することに起因して周囲の空気環境を劣化させる等の弊害が生じるおそれもない。   In addition, since a deformable absorbing member that can be expanded and contracted is interposed in the gap, the interior finish appearance is not impaired, and the gap is formed even when applied to a building such as a clean room. There is no risk of adverse effects such as deterioration of the surrounding air environment.

したがって、請求項２に記載の発明のように、設備機器が上記間隙部により構造躯体に対して相対変位可能となる上記天井部材側または天井部材の中央部分側に集中的に取り付けられている場合に適用して顕著な効果を奏する。   Therefore, as in the invention according to claim 2, when the equipment is intensively attached to the ceiling member side or the central part side of the ceiling member that can be relatively displaced with respect to the structural frame by the gap portion. When applied to, it has a remarkable effect.

また、請求項１または２に記載の発明において、制振ダンパーとしてブレース状に配置するものを用いた場合には、天井部材の内裏に設備機器が設置されていない箇所においては何等問題がないものの、当該設備機器が密に配置されている箇所においては、制振ダンパーが設備機器と干渉することにより、配置の自由度が損なわれ、ひいては効果的な制振効果が得られなくなる虞がある。   Moreover, in the invention according to claim 1 or 2, when using a bracing damper as a vibration damper, there is no problem in a place where no equipment is installed on the inner and rear of the ceiling member. In a place where the equipment is densely arranged, the vibration damping damper interferes with the equipment, so that the degree of freedom of arrangement is lost, and as a result, an effective vibration damping effect may not be obtained.

この点、請求項３に記載の発明によれば、上記構造躯体にダンパー接合部材の上端部を剛接合し、このダンパー接合部材の下端部と上記天井部材または天井部材の中央部分との間に、制振ダンパーを配置しているので、ブレース状に配置する場合と比較して、配置の自由度が大幅に増加し、よって効果的な吊り天井の制振効果を発揮することができる。   In this regard, according to the third aspect of the present invention, the upper end portion of the damper joint member is rigidly joined to the structural housing, and the lower end portion of the damper joint member and the ceiling member or the central portion of the ceiling member are interposed. Since the vibration damping damper is arranged, the degree of freedom of arrangement is greatly increased as compared with the case where it is arranged in a brace shape, so that an effective suspension ceiling damping effect can be exhibited.

ところで、上記構造躯体と天井部材との間に、例えばプレナム天井のような第２の天井部材が吊設されている場合には、直接構造躯体から上記ダンパー接合部材を垂下させようとすると、当該ダンパー接合部材を第２の天井部材に貫通させる必要がある。しかしながら、当該構成を採用した場合には、地震時にダンパー接合部材と第２の天井部材とが干渉しないように、上記貫通部分に大きなクリアランスを設ける必要があり、この結果第２の天井部材における気密性を確保することが難しくなるという課題が生じる。   By the way, when a second ceiling member such as a plenum ceiling is suspended between the structural housing and the ceiling member, if the damper joint member is suspended directly from the structural housing, It is necessary to penetrate the damper joining member through the second ceiling member. However, when this configuration is adopted, it is necessary to provide a large clearance in the penetrating portion so that the damper joint member and the second ceiling member do not interfere with each other during an earthquake. As a result, the airtightness in the second ceiling member is required. There arises a problem that it is difficult to secure the sex.

そこで、請求項４に記載の発明においては、上記構造躯体に第２の天井部材が吊設され、この第２の天井部材に上記天井部材が吊設されている場合に、先ず上記構造躯体と第２の天井部材とを耐震支柱によって一体的に連結しているために、地震時に第２の天井部材が構造躯体とほぼ同様の挙動を呈する。   Therefore, in the invention described in claim 4, when the second ceiling member is suspended from the structural casing, and the ceiling member is suspended from the second ceiling member, first, the structural casing and Since the second ceiling member is integrally connected by the earthquake-proof column, the second ceiling member exhibits substantially the same behavior as the structural frame during an earthquake.

そして、この第２の天井部材にダンパー接合部材の上端部を剛接合し、このダンパー接合部材の下端部と上記天井部材または天井部材の中央部分との間に、制振ダンパーを配置しているので、請求項３に記載の発明と同様に、機器類の配置の自由度が増加するとともに、上記制振ダンパーによって効果的な吊り天井の制振効果を発揮することができる。   And the upper end part of a damper joining member is rigidly joined to this 2nd ceiling member, The damping damper is arrange | positioned between the lower end part of this damper joining member and the said ceiling member or the center part of a ceiling member. Therefore, as in the invention described in claim 3, the degree of freedom of arrangement of the devices increases, and an effective suspension ceiling damping effect can be exhibited by the damping damper.

この際に、特に請求項５に記載の発明のように、複数の上記制振ダンパーを、互いの水平方向の静的反力が相殺される角度で放射状に設置すれば、制振ダンパーから上記ダンパー接合部材に作用する反力を、互いに相殺して安定的な作動を確保することが可能なる。   At this time, as in the invention described in claim 5 in particular, if a plurality of the damping dampers are installed radially at an angle at which the horizontal static reaction forces cancel each other, the damping dampers may It is possible to cancel the reaction forces acting on the damper joining member and to ensure a stable operation.

なお、請求項３または４に記載の発明においては、特に上記制振ダンパーとして、一端部に取付部が一体に形成されたシリンダ内にフリーピストンを介して圧縮ガスとオイルとが充填され、オイル側に配置されたオリフィスを有するピストンに上記シリンダの他端部から延出するロッドが固定されるとともに当該ロッドの先端に他方の取付部が一体に形成されたガススプリングダンパーを使用すれば、小型にも拘わらず高い減衰力が得られるために好適である。   In the invention described in claim 3 or 4, particularly as the vibration damper, compressed gas and oil are filled through a free piston in a cylinder in which a mounting portion is integrally formed at one end. If a gas spring damper in which the rod extending from the other end of the cylinder is fixed to a piston having an orifice arranged on the side and the other mounting portion is integrally formed at the tip of the rod is used, a small size can be obtained. Nevertheless, it is suitable because a high damping force can be obtained.

（実施の形態１）
図１および図２は、本発明の第１の実施形態およびその変形例を示すもので、図１５に示してものと同一構成部分については、同一符号を付してその説明を簡略化する。
図１に示すように、この吊り天井の制振構造においては、上記天井部材３の外周縁と構造躯体１の側壁６との間に、地震時における両者の相対変位を吸収可能な間隙部１０が形成されている。そして、この間隙部１０には、ゴム等の伸縮可能な変形吸収部材１１が気密性を確保した状態で介装されている。 (Embodiment 1)
FIG. 1 and FIG. 2 show the first embodiment of the present invention and its modification. The same components as those shown in FIG.
As shown in FIG. 1, in this suspension ceiling damping structure, a gap 10 is formed between the outer peripheral edge of the ceiling member 3 and the side wall 6 of the structural housing 1 so as to be able to absorb the relative displacement of both in the event of an earthquake. Is formed. In the gap portion 10, a stretchable deformation absorbing member 11 such as rubber is interposed in an airtight state.

さらに、上層の構造躯体１と天井部材３との間には、オイルダンパー、粘弾性ダンパー、ガスダンパー、履歴ダンパー、摩擦ダンパーあるいはこれらを組み合わせることにより構成された制振ダンパー１２が、隣接する吊りボルト（支承部材）２間にブレース状に設置されている。
また、図２に示す変形例においては、上記制振ダンパー１２が、間隙部１０を跨ぐようにして側壁６と天井部材３との間に設置されている。 Further, between the upper structural frame 1 and the ceiling member 3, an oil damper, a viscoelastic damper, a gas damper, a hysteresis damper, a friction damper, or a vibration damper 12 formed by combining them is adjacently suspended. A brace is installed between the bolts (support members) 2.
Further, in the modification shown in FIG. 2, the damping damper 12 is installed between the side wall 6 and the ceiling member 3 so as to straddle the gap 10.

以上の構成からなる図１あるいは図２に示した吊り天井の制振構造によれば、天井部材３と構造躯体１の側壁６との間に、間隙部１０を形成しているため、地震時に構造躯体１から切り離された天井部材３に大きな水平方向の変位が生じるものの、天井部材３と上層の構造躯体１あるいは側壁６との間に、水平方向の振動を吸収する制振ダンパー１２を設置しているので、天井部材３における振動を効果的に低減化させることができる。   1 or 2 having the above configuration, the gap 10 is formed between the ceiling member 3 and the side wall 6 of the structural housing 1, so that in the event of an earthquake, Although a large horizontal displacement occurs in the ceiling member 3 separated from the structural housing 1, a damping damper 12 for absorbing horizontal vibration is installed between the ceiling member 3 and the upper structural housing 1 or the side wall 6. Therefore, vibration in the ceiling member 3 can be effectively reduced.

また、天井部材３の外周縁部と構造躯体１の側壁６との間との間に生じる水平方向の相対変位を、間隙部１０によって吸収することができるため、重量の大きな設備機器４を設置した場合においても、地震時における天井部材３やこれに設置された設備機器４が損傷を受けることを効果的に防止することができる。   Further, since the horizontal relative displacement generated between the outer peripheral edge of the ceiling member 3 and the side wall 6 of the structural housing 1 can be absorbed by the gap 10, the heavy equipment 4 is installed. Even in this case, it is possible to effectively prevent the ceiling member 3 and the equipment 4 installed on the ceiling member 3 from being damaged during an earthquake.

しかも、間隙部１０にゴム等からなる伸縮可能な変形吸収部材１１を気密的に介装しているので、室内の仕上げ外観を損なうことが無く、しかも、クリーンルーム等の建物に用いた場合においても、間隙部１０を形成することに起因して周囲の空気環境を劣化させる等の弊害が生じるおそれがない。   In addition, since the stretchable deformation absorbing member 11 made of rubber or the like is hermetically interposed in the gap portion 10, there is no loss of the interior finish appearance, and even when used in a building such as a clean room. There is no possibility of causing adverse effects such as deterioration of the surrounding air environment due to the formation of the gap 10.

（実施の形態２）
図３および図４は、本発明の第２の実施形態およびその変形例を示すもので、同様に図１および図１５に示したものと同一構成部分については、同一符号を付してある。
本実施形態は、設備機器４が、天井部材３の中央部分側に集中的に配置されている場合に適用したもので、最も側壁４側に配置されている設備機器４の外周側において、天井部材３に間隙部１０が形成されている。これにより、天井部材３の中央部分３ａと、側壁６に固定された周辺部分３ｂとの間に、上記間隙部１０が形成されていることになる。 (Embodiment 2)
3 and 4 show a second embodiment of the present invention and its modification. Similarly, the same components as those shown in FIGS. 1 and 15 are denoted by the same reference numerals.
The present embodiment is applied when the equipment 4 is intensively arranged on the central portion side of the ceiling member 3, and the ceiling is provided on the outer peripheral side of the equipment 4 arranged closest to the side wall 4. A gap 10 is formed in the member 3. As a result, the gap 10 is formed between the central portion 3 a of the ceiling member 3 and the peripheral portion 3 b fixed to the side wall 6.

そして、同様に間隙部１０に伸縮可能な変形吸収部材１１が介装されるともに、天井部材３の中央部分３ａと構造躯体１との間に、振動を吸収する制振ダンパー１２が設置されている。
また、図４に示す変形例においては、上記制振ダンパー１２が、間隙部１０を跨ぐようにして天井部材３の中央部分３ａと周辺部分３ｂとの間に設置されている。さらに、天井部材の周辺部分３ｂと上層の構造躯体１との間には、当該周辺部分３ｂにおける横揺れを防止するための振れ止め材５がブレース状に介装されている。 Similarly, the elastically deformable deformation absorbing member 11 is interposed in the gap portion 10, and a damping damper 12 that absorbs vibration is installed between the central portion 3 a of the ceiling member 3 and the structural housing 1. Yes.
Moreover, in the modification shown in FIG. 4, the said damping damper 12 is installed between the center part 3a and the peripheral part 3b of the ceiling member 3 so that the gap | interval part 10 may be straddled. Further, between the peripheral portion 3b of the ceiling member and the upper structural frame 1, a steady rest material 5 for preventing the rolling in the peripheral portion 3b is interposed in a brace shape.

以上の構成からなる第２の実施形態に示した吊り天井の制振構造においては、天井部材３の中央部分３ａと周辺部分３ｂとの間に間隙部１０を形成している結果、地震時にこれら中央部分３ａと周辺部分３ｂとの間に大きな水平方向の変位が生じるが、当該中央部分３ａと上層の構造躯体１あるいは周辺部分３ｂとの間に、制振ダンパー１２を設置しているので、天井部材３の中央部分３ａにおける振動を効果的に低減化させることができる。   In the suspended ceiling damping structure shown in the second embodiment having the above-described configuration, the gap portion 10 is formed between the central portion 3a and the peripheral portion 3b of the ceiling member 3, and as a result, during the earthquake Although a large horizontal displacement occurs between the central portion 3a and the peripheral portion 3b, the damping damper 12 is installed between the central portion 3a and the upper structural frame 1 or the peripheral portion 3b. The vibration in the central part 3a of the ceiling member 3 can be effectively reduced.

また、天井部材３の中央部分３ａと周辺部分３ｂとの間との間に生じる水平方向の相対変位を、間隙部１０によって吸収することができるため、結局第１の実施形態に示したものと同様の作用効果が得られる。   In addition, since the horizontal relative displacement generated between the central portion 3a and the peripheral portion 3b of the ceiling member 3 can be absorbed by the gap portion 10, it is eventually shown in the first embodiment. Similar effects can be obtained.

（実施の形態３）
図５〜図７は、本発明の第３の実施形態を示すものであり、図８はその変形例を示すものである。
図５〜図７において、この吊り天井の制振構造においては、天井部材３が、天井下地となる鉄骨製の野縁や野縁受け等の格子状の金物１３と、この金物１３にビス止めあるいは嵌め込まれた天井仕上げ材１４とから構成されている。ここで、この金物１３の各格子内に、設備機器４が設置されている。 (Embodiment 3)
5 to 7 show a third embodiment of the present invention, and FIG. 8 shows a modification thereof.
5 to 7, in this suspension ceiling vibration control structure, the ceiling member 3 includes a steel frame edge or a field edge receiver 13 as a base of the ceiling, and screws fixed to the hardware 13. Or it is comprised from the ceiling finishing material 14 inserted. Here, the equipment 4 is installed in each lattice of the hardware 13.

そして、上端部が上層の構造躯体１に剛接合された剛性の高いダンパー接合部材１６が、天井部材３の設備機器４が設置されていない格子区画１５の中心部に向けて垂設されている。そしてさらに、このダンパー接合部材１６の下端部と金物１３との間に、それぞれ制振ダンパー２０が介装されている。   A highly rigid damper joining member 16 whose upper end is rigidly joined to the upper structural frame 1 is suspended toward the center of the lattice section 15 where the equipment 4 of the ceiling member 3 is not installed. . Further, a vibration damper 20 is interposed between the lower end portion of the damper joint member 16 and the hardware 13.

図６は、上記制振ダンパー２０の一好適例であるフリーピストンを用いたガススプリングダンパーを示すもので、図中符号２１がシリンダーである。このシリンダー２１は、一端２１ａが閉じられた筒状部材で、当該一端２１ａには、取付部２２が一体に形成されている。そして、このシリンダー２１内には、フリーピストン２３がＯ−リング２３ａによって気密的に移動自在に設けられ、このフリーピストン２３とシリンダー２１の一端２１ａとの間には圧縮ガスＧが充填されている。   FIG. 6 shows a gas spring damper using a free piston, which is a preferred example of the vibration damping damper 20, and reference numeral 21 in the figure denotes a cylinder. The cylinder 21 is a cylindrical member whose one end 21a is closed, and an attachment portion 22 is formed integrally with the one end 21a. A free piston 23 is provided in the cylinder 21 so as to be airtightly movable by an O-ring 23a, and a compressed gas G is filled between the free piston 23 and one end 21a of the cylinder 21. .

また、フリーピストン２３とシリンダー２１の他端２１ｂとの間には、ピストン２４が移動自在に設けられ、このピストン２４に固定されたロッド２５が、シリンダー２１の他端２１ｂから外部に延出されている。そして、シリンダー２１の他端２１ｂは、シール２６を介してシリンダー２１に一体的に取り付けられたロッドガイド２７によって液密的に封じられている。   A piston 24 is movably provided between the free piston 23 and the other end 21b of the cylinder 21, and a rod 25 fixed to the piston 24 extends from the other end 21b of the cylinder 21 to the outside. ing. The other end 21 b of the cylinder 21 is liquid-tightly sealed by a rod guide 27 that is integrally attached to the cylinder 21 via a seal 26.

ここで、シリンダー２１内のピストン２４の移動方向前後の空間には、オイルＯが充填されており、ピストン２４には、これら前後の空間を連通させるオリフィス２８が形成されている。さらに、ロッド２５の先端部には、取付部２９が一体的に形成されている。   Here, the space in the cylinder 21 before and after the movement direction of the piston 24 is filled with oil O, and the piston 24 is formed with an orifice 28 that communicates with the space in the front and rear. Further, an attachment portion 29 is integrally formed at the tip portion of the rod 25.

そして、図７に示すように、設備機器４が設置されていない格子区画１５において、上記構成からなる４本の制振ダンパー２０の一方の取付部２９がダンパー接合部材１６の下端部に連結され、他方の取付部２２が金物１３の各コーナー部に連結されることにより、これら制振ダンパー２０は、ダンパー接合部材１６から水平方向の４方向に向けて放射状に設置されている。   As shown in FIG. 7, in the lattice section 15 where the equipment 4 is not installed, one mounting portion 29 of the four vibration dampers 20 having the above-described configuration is connected to the lower end portion of the damper joining member 16. The other mounting portion 22 is connected to each corner portion of the hardware 13 so that the damping dampers 20 are radially arranged from the damper joining member 16 in the four horizontal directions.

なお、図８は、４本の制振ダンパー２０の一方の取付部２９をダンパー接合部材１６の下端部に連結し、他方の取付部２２を金物１３の各辺部に連結することにより、これら制振ダンパー２０を、ダンパー接合部材１６から互いに直交する水平方向の４方向に向けて放射状に設置したものである。   In FIG. 8, one attachment portion 29 of the four damping dampers 20 is connected to the lower end portion of the damper joining member 16, and the other attachment portion 22 is connected to each side portion of the hardware 13, so that The damping damper 20 is installed radially from the damper joining member 16 in four horizontal directions orthogonal to each other.

以上の構成からなる吊り天井の制振構造によれば、上述した第１および第２の実施形態に示したものと同様の作用効果が得られるうえ、さらに構造躯体１にダンパー接合部材１６の上端部を剛接合し、このダンパー接合部材１６の下端部と天井部材３の設備機器４が設置されていない格子区画１５を画成する金物１３との間に、制振ダンパー２０を配置しているので、当該制振ダンパー２０が設備機器４と干渉することが無く、よってブレース状に配置する場合と比較して、配置の自由度が大幅に増加し、よって効果的な吊り天井の制振効果を発揮することができる。   According to the suspension ceiling vibration damping structure having the above-described configuration, the same operational effects as those shown in the first and second embodiments described above can be obtained, and the upper end of the damper joint member 16 can be further added to the structural housing 1. The damping damper 20 is arranged between the lower end of the damper joining member 16 and the hardware 13 defining the lattice section 15 where the equipment 4 of the ceiling member 3 is not installed. Therefore, the vibration damping damper 20 does not interfere with the equipment 4, and therefore the degree of freedom of arrangement is greatly increased as compared with the case where the vibration damping damper 20 is arranged in a brace shape, and thus the effective suspension ceiling vibration damping effect. Can be demonstrated.

また、上記制振ダンパー２０は、フリーピストンを用いたガススプリングダンパーであるために、シリンダー２１内が常時圧縮ガスＧの圧力Ｐに保持されている。この結果、地震時に制振ダンパー２０に作用する外力が、上記圧力Ｐとピストン２４の受圧面積Ａとの積（Ｐ×Ａ）よりも大きくなった場合に、ロッド２５が移動する。そして、ピストン２４がシリンダ２１内を移動することにより、オイルＯを介したフリーピストン２３に対する圧縮と、ピストン２４のオリフィス２８を通じたオイルＯの移動とにより、上記地震によりロッド２５に作用する外力が吸収・緩和される。   Further, since the damping damper 20 is a gas spring damper using a free piston, the inside of the cylinder 21 is always held at the pressure P of the compressed gas G. As a result, the rod 25 moves when the external force acting on the damping damper 20 during an earthquake becomes larger than the product (P × A) of the pressure P and the pressure receiving area A of the piston 24. As the piston 24 moves in the cylinder 21, the external force acting on the rod 25 due to the earthquake is caused by the compression of the free piston 23 via the oil O and the movement of the oil O through the orifice 28 of the piston 24. Absorbed and relaxed.

したがって、上記制振ダンパー２０によれば、小型にも拘わらず高い減衰力を得ることができ、よって特に天井内裏の狭隘な箇所に設置した場合においても、所望の制振効果を得ることができる。
加えて、上記制振ダンパー２０を水平方向の４方向に向けて放射状に設置しているので、制振ダンパー２０からダンパー接合部材１６に向けて作用する反力を、互いに相殺して安定的な作動を確保することができる。 Therefore, according to the vibration damping damper 20, it is possible to obtain a high damping force despite its small size, and therefore, it is possible to obtain a desired vibration damping effect even when installed in a narrow part of the interior / back of the ceiling. .
In addition, since the vibration dampers 20 are arranged radially in the four horizontal directions, the reaction forces acting from the vibration damper 20 toward the damper joining member 16 cancel each other and are stable. Operation can be ensured.

（実施の形態４）
図９〜図１３は、本発明の第４の実施形態を、図１４はその変形例を示すものであり、同様に図５〜図７に示したものと同一構成部分については、同一符号を付してある。
図９〜図１３に示すように、この吊り天井の制振構造においては、構造躯体１から垂下された吊りボルト（支承部材）２によってプレナムチャンバー天井部材（第２の天井部材）３０が吊設され、このプレナムチャンバー天井部材３０から垂下された吊りボルト（支承部材）２によって上記天井部材３が吊設されている。 (Embodiment 4)
FIGS. 9 to 13 show a fourth embodiment of the present invention, and FIG. 14 shows a modification thereof. Similarly, the same components as those shown in FIGS. It is attached.
As shown in FIG. 9 to FIG. 13, in this suspension ceiling vibration control structure, a plenum chamber ceiling member (second ceiling member) 30 is suspended by suspension bolts (support members) 2 suspended from the structural housing 1. The ceiling member 3 is suspended by suspension bolts (support members) 2 suspended from the plenum chamber ceiling member 30.

ここで、構造躯体１の一部となる大梁または小梁を構成する構造鉄骨１ａに、補強鉄骨１ｂが直交方向に架設されている。また、プレナムチャンバー天井部材３０は、メインバー３１とクロスバー３２とが格子状に組まれた枠材の下面に、天井仕上げ材３３が取り付けられたもので、メインバー３１が構造鉄骨１ａと直交する方向に配置されている。   Here, a reinforcing steel frame 1b is installed in a perpendicular direction on a structural steel frame 1a constituting a large beam or a small beam which is a part of the structural frame 1. Further, the plenum chamber ceiling member 30 is obtained by attaching a ceiling finishing material 33 to the lower surface of a frame member in which a main bar 31 and a cross bar 32 are assembled in a lattice shape, and the main bar 31 is orthogonal to the structural steel frame 1a. It is arranged in the direction to do.

さらに、上記天井部材３の格子状の金物１３も、メインバー１３ａとクロスバー１３ｂとによって組まれており、メインバー１３ａがプレナムチャンバー天井部材３０におけるメインバー３１と直交する方向に配置されるとともに、その所定個所の格子内に、図示されない設備機器４が設置されている。   Further, the lattice-shaped hardware 13 of the ceiling member 3 is also assembled by the main bar 13a and the cross bar 13b, and the main bar 13a is arranged in a direction orthogonal to the main bar 31 in the plenum chamber ceiling member 30. The equipment 4 (not shown) is installed in the grid at the predetermined location.

そして、これら構造躯体１とプレナムチャンバー天井部材３０とは、所望の個所に配置された耐震支柱３４によって、一体的に連結されている。
すなわち、各々の耐震支柱３４は、上端部が構造鉄骨１ａと補強鉄骨１ｂとの交差部にボルト３５等によって剛接合されるとともに、下端部がプレナムチャンバー天井部材３０のメインバー３１とクロスバー３２との交差部にボルト３６等によって剛接合されている。 And these structural housing 1 and the plenum chamber ceiling member 30 are integrally connected by the earthquake-proof support | pillar 34 arrange | positioned in a desired location.
That is, each seismic support 34 is rigidly joined to the intersection of the structural steel frame 1a and the reinforcing steel frame 1b with a bolt 35 or the like at the upper end, and the lower bar is connected to the main bar 31 and the cross bar 32 of the plenum chamber ceiling member 30. Are rigidly joined by bolts 36 or the like.

さらに、構造鉄骨１ａおよび補強鉄骨１ｂと、耐震支柱３４の下部との間には、４方向にブレース３７が設けられている。
他方、耐震支柱３４の下方に位置するメインバー３１とクロスバー３２との交差部下面には、耐震支柱３４と上下方向に連続するように上記ダンパー接合部材１６の上端部がボルト３８等により剛接合されている。また、プレナムチャンバー天井部材３０のメインバー３１およびクロスバー３２と、ダンパー接合部材１６の下部との間には、４方向にブレース３９が設けられている。 Further, braces 37 are provided in four directions between the structural steel frame 1 a and the reinforcing steel frame 1 b and the lower part of the earthquake-proof column 34.
On the other hand, on the lower surface of the intersection of the main bar 31 and the cross bar 32 located below the earthquake-proof column 34, the upper end portion of the damper joint member 16 is rigidly secured by a bolt 38 or the like so as to be continuous with the earthquake-resistant column 34 in the vertical direction. It is joined. Further, braces 39 are provided in four directions between the main bar 31 and the cross bar 32 of the plenum chamber ceiling member 30 and the lower portion of the damper joining member 16.

ここで、このダンパー接合部材１６の下端部は、所定の隙間を介して天井部材３のメインバー１３ａとクロスバー１３ｂとの交差部の上方に配置されている。そして、４本の制振ダンパー２０の一方の取付部２９がダンパー接合部材１６の下端部に連結され、他方の取付部２２がメインバー１３ａまたはクロスバー１３ｂに連結されることにより、これら制振ダンパー２０が、ダンパー接合部材１６から水平方向の４方向に向けて放射状に設置されている。   Here, the lower end portion of the damper joining member 16 is disposed above the intersection of the main bar 13a and the cross bar 13b of the ceiling member 3 with a predetermined gap. Then, one attachment portion 29 of the four vibration damping dampers 20 is connected to the lower end portion of the damper joining member 16, and the other attachment portion 22 is connected to the main bar 13a or the cross bar 13b. The dampers 20 are arranged radially from the damper joining member 16 in four horizontal directions.

また、図１４は、本実施形態の変形例を示すもので、この吊り天井の制振構造においては、ダンパー接合部材１６が、天井部材３の設備機器４が設置されていない格子区画１５の中心部に向けて垂設されている。そしてさらに、このダンパー接合部材１６の下端部と金物１３との間に、それぞれ制振ダンパー２０が介装されている。   FIG. 14 shows a modification of the present embodiment. In this suspension ceiling damping structure, the damper joining member 16 is the center of the lattice section 15 where the equipment 4 of the ceiling member 3 is not installed. It is erected toward the part. Further, a vibration damper 20 is interposed between the lower end portion of the damper joint member 16 and the hardware 13.

ちなみに、上記制振ダンパー２０の設置形態としては、例えば図７に示したように、設備機器４が設置されていない格子区画１５において、４本の制振ダンパー２０の他方の取付部２２を金物１３の各コーナー部に連結することにより、これら制振ダンパー２０を、ダンパー接合部材１６から水平方向の４方向に向けて放射状に設置してもよい。   Incidentally, as an installation form of the vibration damper 20, for example, as shown in FIG. 7, in the lattice section 15 where the equipment 4 is not installed, the other mounting portion 22 of the four vibration dampers 20 is a hardware. These damping dampers 20 may be installed radially from the damper joining member 16 in the four directions in the horizontal direction by connecting to the respective 13 corner portions.

あるいは、図８に示したように、他方の取付部２２を金物１３を構成するメインバー１３ａまたはクロスバー１３ｂに連結することにより、これら制振ダンパー２０を、ダンパー接合部材１６から互いに直交する水平方向の４方向に向けて放射状に設置することもできる。   Alternatively, as shown in FIG. 8, by connecting the other mounting portion 22 to the main bar 13 a or the cross bar 13 b constituting the hardware 13, these damping dampers 20 are connected to the damper joining member 16 in a horizontal direction perpendicular to each other. It can also be installed radially in the four directions.

以上の構成からなる吊り天井の制振構造によれば、構造躯体１と、この構造躯体１から吊りボルト２によって吊設されたプレナムチャンバー天井部材３０とを、所望の個所に配設した耐震支柱３４およびブレース３７とによって剛に連結しているために、地震時におけるプレナムチャンバー天井部材３０の構造躯体１に対する変位を大幅に抑制して、当該プレナムチャンバー天井部材３０を構造躯体１とほぼ同様に挙動させることができる。   According to the suspension ceiling vibration damping structure having the above configuration, the earthquake-proof strut in which the structural housing 1 and the plenum chamber ceiling member 30 suspended from the structural housing 1 by the suspension bolts 2 are disposed at desired locations. 34 and the brace 37 are rigidly connected to each other, so that the displacement of the plenum chamber ceiling member 30 with respect to the structural housing 1 at the time of an earthquake is greatly suppressed, and the plenum chamber ceiling member 30 is substantially the same as the structural housing 1. Can behave.

そして、このプレナムチャンバー天井部材３０に、ダンパー接合部材１６の上端部を剛接合し、このダンパー接合部材１６の下端部と天井部材３０との間に、制振ダンパー２０を配置しているので、第３の実施形態に示したものと同様の作用効果を得ることができる。   Since the upper end portion of the damper joint member 16 is rigidly joined to the plenum chamber ceiling member 30, and the damping damper 20 is disposed between the lower end portion of the damper joint member 16 and the ceiling member 30, The same effects as those shown in the third embodiment can be obtained.

この際に、構造鉄骨１ａおよび補強鉄骨１ｂと耐震支柱３４の下部との間に、ブレース３７を設けているので、構造躯体１とプレナムチャンバー天井部材３０との一体性を高めることができる。また、ダンパー接合部材１６と耐震支柱３４とを上下方向に連続的に設けるとともに、プレナムチャンバー天井部材３０のメインバー３１およびクロスバー３２との間に４方向にブレース３９を設けているので、ダンパー接合部材１６の強度を高めて確実に制振ダンパー２０を機能させることができる。   At this time, since the brace 37 is provided between the structural steel frame 1a and the reinforcing steel frame 1b and the lower part of the earthquake-proof column 34, the integrity of the structural frame 1 and the plenum chamber ceiling member 30 can be enhanced. In addition, the damper joining member 16 and the earthquake-proof column 34 are continuously provided in the vertical direction, and the brace 39 is provided in the four directions between the main bar 31 and the cross bar 32 of the plenum chamber ceiling member 30, so that the damper The strength of the joining member 16 can be increased and the vibration damper 20 can function reliably.

本発明の吊り天井の制振構造の第１の実施形態を示す縦断面図である。It is a longitudinal section showing a 1st embodiment of a damping structure of a suspended ceiling of the present invention. 図１の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of FIG. 本発明の第２の実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the 2nd Embodiment of this invention. 図３の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of FIG. 本発明の第３の実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the 3rd Embodiment of this invention. 図５の制振ダンパーの構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the damping damper of FIG. 図５の平面図である。FIG. 6 is a plan view of FIG. 5. 図７の変形例を示す平面図である。It is a top view which shows the modification of FIG. 本発明の第４の実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the 4th Embodiment of this invention. 図９の要部の拡大図である。It is an enlarged view of the principal part of FIG. 図１０のＡ−Ａ線視断面図である。It is AA sectional view taken on the line of FIG. 図１０のＢ−Ｂ線視断面図である。It is the BB sectional view taken on the line of FIG. 図１０のＣ−Ｃ線視断面図である。It is CC sectional view taken on the line of FIG. 図９の変形例を示す要部を拡大した縦断面図である。It is the longitudinal cross-sectional view which expanded the principal part which shows the modification of FIG. 従来の吊り天井の構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the conventional suspension ceiling. 図１５の吊り天井が大地震を受けた際の状態およびその損傷箇所を示す図である。It is a figure which shows the state at the time of the suspended ceiling of FIG. 15 receiving a big earthquake, and its damage location.

符号の説明Explanation of symbols

１ 構造躯体
１ａ 構造鉄骨
２ 吊りボルト（支承部材）
３ 天井部材
４ 設備機器
６ 側壁
１０ 間隙部
１１ 変形吸収部材
１２、２０ 制振ダンパー
１６ ダンパー接合部材
３０ プレナムチャンバー天井部材（第２の天井部材）
３４ 耐震支柱 DESCRIPTION OF SYMBOLS 1 Structure frame 1a Structure steel frame 2 Suspension bolt (support member)
DESCRIPTION OF SYMBOLS 3 Ceiling member 4 Equipment 6 Side wall 10 Gap part 11 Deformation absorption member 12, 20 Damping damper 16 Damper joining member 30 Plenum chamber ceiling member (2nd ceiling member)
34 Seismic support

Claims (5)

上層の構造躯体から垂下された支承部材によって天井部材が支持されるとともに、上記天井部材に設備機器が取り付けられてなる吊り天井の制振構造であって、
上記天井部材と上記構造躯体の側壁との間、または上記天井部材の中央部分と周辺部分との間に、水平方向の相対変位を吸収する間隙部を形成し、当該間隙部に伸縮可能な変形吸収部材を介装するとともに、上記天井部材と上記構造躯体との間、または上記天井部材の中央部分と上記構造躯体もしくは上記天井部材の周辺部分との間に、水平方向の振動を吸収する制振ダンパーを設置したことを特徴とする吊り天井の制振構造。 The ceiling member is supported by the support member suspended from the upper structural frame, and the suspension ceiling has a vibration damping structure in which equipment is attached to the ceiling member.
A gap that absorbs relative displacement in the horizontal direction is formed between the ceiling member and the side wall of the structural housing, or between the central portion and the peripheral portion of the ceiling member, and the deformation that can be expanded and contracted in the gap portion. In addition to interposing an absorbing member, the vibration absorbing member absorbs horizontal vibration between the ceiling member and the structural housing, or between the central portion of the ceiling member and the peripheral portion of the structural housing or the ceiling member. Suspended ceiling damping structure characterized by the installation of a vibration damper. 上記設備機器は、上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材側または上記天井部材の中央部分側に取り付けられていることを特徴とする請求項１に記載の吊り天井の制振構造。   2. The suspended ceiling according to claim 1, wherein the equipment is attached to the ceiling member side or a central part side of the ceiling member that is relatively displaceable with respect to the structural frame by the gap. Damping structure. 上記構造躯体にダンパー接合部材の上端部を剛接合し、上記ダンパー接合部材の下端部と上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材または上記天井部材の中央部分との間に上記制振ダンパーを設置したことを特徴とする請求項１または２に記載の吊り天井の制振構造。   The upper end portion of the damper joint member is rigidly joined to the structural housing, and the lower end portion of the damper joint member and the ceiling member or the central portion of the ceiling member that can be relatively displaced with respect to the structural housing by the gap portion. The suspension vibration damping structure according to claim 1, wherein the vibration damping damper is installed in the suspension ceiling. 上記構造躯体から垂下された上記支承部材を介して第２の天井部材が吊設され、この第２の天井部材から垂下された上記支承部材を介して上記天井部材が吊設されてなり、
上記構造躯体に耐震支柱の上端部を剛接合し、上記耐震支柱の下端部に上記第２の天井部材を剛接合して両者を一体的に連結するとともに、上記第２の天井部材にダンパー接合部材の上端部を剛接合し、上記ダンパー接合部材の下端部と上記間隙部により上記構造躯体に対して相対変位可能な上記天井部材または上記天井部材の中央部分との間に上記制振ダンパーを設置したことを特徴とする請求項１または２に記載の吊り天井の制振構造。 A second ceiling member is suspended through the support member suspended from the structural housing, and the ceiling member is suspended through the support member suspended from the second ceiling member.
The upper end of the earthquake-proof column is rigidly joined to the structural frame, the second ceiling member is rigidly joined to the lower end of the earthquake-resistant column, and the two are integrally connected, and the damper is joined to the second ceiling member. The upper end of the member is rigidly joined, and the damping damper is placed between the lower end of the damper joined member and the ceiling member or the central portion of the ceiling member that can be displaced relative to the structural frame by the gap. 3. The suspended ceiling vibration damping structure according to claim 1, wherein the suspension ceiling vibration damping structure is installed. 複数の上記制振ダンパーが、互いの水平方向の静的反力が相殺される角度で放射状に設置されていることを特徴とする請求項１ないし４のいずれかに記載の吊り天井の制振構造。   5. The suspension ceiling damping according to claim 1, wherein the plurality of damping dampers are radially arranged at an angle that cancels out the static reaction force in the horizontal direction of each other. Construction.
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CN113027031A (en) * 2021-03-29 2021-06-25 深圳市旋木尚艺装饰工程有限公司 Furred ceiling skeleton shock attenuation sound insulation mounting structure
CN113027031B (en) * 2021-03-29 2022-07-05 深圳市旋木尚艺装饰工程有限公司 Furred ceiling skeleton shock attenuation sound insulation mounting structure

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