JPH076300B2 - Floor vibration damping device - Google Patents
Floor vibration damping deviceInfo
- Publication number
- JPH076300B2 JPH076300B2 JP23556289A JP23556289A JPH076300B2 JP H076300 B2 JPH076300 B2 JP H076300B2 JP 23556289 A JP23556289 A JP 23556289A JP 23556289 A JP23556289 A JP 23556289A JP H076300 B2 JPH076300 B2 JP H076300B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- vibration
- spring
- damping device
- vibration damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Floor Finish (AREA)
- Vibration Prevention Devices (AREA)
- Bridges Or Land Bridges (AREA)
- Building Environments (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、大スパン架構の床や機械室の床、運動施設の
床及び長大な工作物であるオーバーブリッジなどであっ
て上下振動の発生しやすい幅広い床の振動エネルギーを
吸収し、床の防振や床振動の制振に利用できる制振装置
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is applicable to a floor of a large span frame, a floor of a machine room, a floor of an exercise facility, an overbridge which is a long workpiece, and the like, and vertical vibration is generated. The present invention relates to a vibration control device that absorbs vibration energy of a wide range of floors and can be used for floor vibration control and floor vibration control.
（従来の技術並びに発明が解決しようとする課題） 従来の床振動に対する対策は、大スパン架構の床の場
合、床面を構成する大梁、小梁の剛性を上げることや床
重量を極力少なくすることにより振動障害を生じないよ
うに設計するのが通例である。しかしながら梁の剛性を
上げる方法では天井高、コスト、使用面で制約があり、
効果に限界がある。また剛性を上げるだけでは床の振動
減衰効果はほとんど変わらない。そして機械室の床や運
動施設の床の場合も同じで、床の剛性を上げることで床
の振動減衰効果を期待することには限界があり、目立っ
た効果は望めない。そこで種々の制振材や制振装置が開
発されているが、床の上下振動に関して振動減衰に顕著
な効果のあるものは見当たらない。(Prior Art and Problems to be Solved by the Invention) Conventional measures against floor vibration are, in the case of a floor with a large span frame, to increase the rigidity of a large beam and a small beam forming the floor surface and to reduce the floor weight as much as possible. It is customary to design so that vibrational disturbances do not occur. However, the method of increasing the rigidity of the beam has restrictions on ceiling height, cost, and use,
There is a limit to the effect. In addition, the vibration damping effect of the floor is hardly changed just by increasing the rigidity. The same applies to the floor of the machine room and the floor of the exercise facility, and there is a limit to expecting the vibration damping effect of the floor by increasing the rigidity of the floor, and a remarkable effect cannot be expected. Therefore, various damping materials and damping devices have been developed, but none of them have a remarkable effect on vibration damping with respect to vertical vibration of the floor.
本発明は、上記の問題に鑑みてなされたものであり、そ
の目的は制振装置を床と共振させることにより床のエネ
ルギーを制振装置に移し、床自体の揺れの防止と床の振
動を早く収束させることのできる制振装置を提供するこ
とである。The present invention has been made in view of the above problems, and its purpose is to transfer the energy of the floor to the vibration damping device by causing the vibration damping device to resonate with the floor to prevent the shaking of the floor itself and the vibration of the floor. It is an object of the present invention to provide a vibration damping device that can quickly converge.
（課題を解決するための手段及びその作用） 本発明者は、制振装置について種々検討した結果、適当
な質量を付加する板材とこれを支持するばねと振動エネ
ルギーを吸収するダンパーとの組合せからく制振装置
を、鉱物物の床に取付けて床と共振させることにより、
床のエネルギーを該制振装置に移し、床自体の揺れの防
止と床の振動を早く収束させることができることを知見
した。(Means for Solving the Problem and Its Action) As a result of various studies on the vibration damping device, the present inventor has found that a combination of a plate member that adds an appropriate mass, a spring that supports the plate member, and a damper that absorbs vibration energy is used. By installing a vibration control device on the floor of minerals and resonating with the floor,
It was found that the energy of the floor can be transferred to the vibration damping device to prevent shaking of the floor itself and to quickly converge the vibration of the floor.
すなわち本発明の要旨は、上下振動の発生しやすい幅広
い床の振動エネルギーを吸収する制振装置において、支
柱にばねを挿設し、ばねの上部位置でダンパーが支柱に
取付けられており、かつ質量付加材が上記ダンパーを介
してばねに担持されている構造のものが、上記支柱の一
端で床に取り付けられているかまたは、上記構造のもの
の上記支柱の上下端が床下の梁のウエブ部の両側におい
て取付治具によってそれぞれ支持され、かつ上記質量付
加材がダンパーを内蔵したブラケットにより支持されて
上記梁の両側に取付けられていることを特徴とする床振
動の制振装置である。本発明に用いるばねはコイルばね
を用いることが望ましい。そしてこのコイルばねは支柱
の下部に挿設するが、制振装置の振動周期を調整するた
めに、取り変えてばね定数を変えることができるように
する。つぎに支柱にダンパーを取付けるがその位置は前
記の支柱に挿設したばねの上部位置とする。そしてダン
パーの高さは、後述の質量付加材の重ねた高さと一致さ
せることが好ましい。That is, the gist of the present invention is, in a vibration damping device that absorbs the vibration energy of a wide floor where vertical vibration is likely to occur, a spring is inserted in the column, and the damper is attached to the column at the upper position of the spring, and the mass is increased. The structure in which the additional material is supported by the spring through the damper is attached to the floor at one end of the column, or the upper and lower ends of the column in the structure are on both sides of the web portion of the beam under the floor. In the above, the floor vibration damping device is characterized in that each is supported by a mounting jig, and the mass addition material is supported by brackets having built-in dampers and mounted on both sides of the beam. The spring used in the present invention is preferably a coil spring. This coil spring is inserted in the lower part of the column, but it can be replaced to change the spring constant in order to adjust the vibration cycle of the vibration damping device. Next, a damper is attached to the support, but its position is the upper position of the spring inserted in the support. Further, it is preferable that the height of the damper is matched with the height of the later-described mass-adding material stacked.
そしてダンパーの材質は高減衰ゴム、粘弾性体、粘性
体、摩擦バネなどが用いられ、床の振動性状やその部屋
の利用状態に応じて適切なものを用いる。本発明に用い
る質量付加材は鉄、鉛、コンクリートなどの材質のもの
が用いられるが、設計重量を満たしかつコンパクトな大
きさものであればどのような材質のものでもよい。そし
て板状のものを多数枚重ねて用いる。付加する質量は床
の重量によって重さを調節する必要があるので取り外し
可能とするためである。As the material of the damper, a high damping rubber, a viscoelastic body, a viscous body, a friction spring, or the like is used, and an appropriate material is used according to the vibration characteristics of the floor and the usage state of the room. The mass addition material used in the present invention is made of a material such as iron, lead or concrete, but may be any material as long as it satisfies the design weight and has a compact size. Then, a large number of plate-shaped objects are stacked and used. This is because the mass to be added needs to be adjusted according to the weight of the floor, so that the mass can be removed.
そしてこの質量付加材は、前記のダンパーを介して板状
のものを重ね、前記のばねに担持させる構造とする。The mass-applying member has a structure in which plate-like members are stacked via the damper and are supported by the spring.
つぎに本発明における制振装置は、支柱にばねを挿設し
さらにその支柱にダンパーを取付けそのダンパーを介し
て質量付加材がばねに担持されて一体化されているもの
を、その支柱の一端によって床下に吊り下げたり床上に
設置する状態で床に取付けるか、支柱の上下端を床を支
持する鉄骨大梁、小梁のウエブ部の両側に固設した取付
治具によって支持し、さらに上記質量付加材をダンパー
を内蔵したブラケットにより支持しかつ上記の梁のウエ
ブ部の両側にそれぞれ取付けることを特徴とする。本発
明による制振装置は、床が振動しはじめると同時に作動
するので、特に操作する必要がない。そしてこの装置の
設置には予め床の固有周期を求めておき、制振装置の固
有の周期を床と同じく共振するように調整する（前述の
ばね定数を変えることによる）。床と制振装置の共振に
より床の振動エネルギーが制振装置に移行し、ダンパー
によってエネルギーが吸収されるので床自体の揺れが防
止されかつ床の振動を早く収束させることができる。Next, in the vibration damping device of the present invention, one in which one end of the support column is one in which a spring is inserted in the support column, a damper is attached to the support column, and a mass addition material is carried by the spring through the damper and integrated It is mounted on the floor by being hung below the floor or installed on the floor, or the upper and lower ends of the columns are supported by mounting jigs fixed on both sides of the steel beam and beam of the beam to support the floor, The additional material is supported by a bracket having a built-in damper and is attached to both sides of the web portion of the beam. The vibration damping device according to the present invention operates at the same time when the floor starts to vibrate, and thus does not require any special operation. The natural period of the floor is determined in advance for the installation of this device, and the unique period of the vibration damping device is adjusted so as to resonate with the floor (by changing the above-mentioned spring constant). Due to the resonance of the floor and the vibration damping device, the vibration energy of the floor is transferred to the vibration damping device, and the damper absorbs the energy, so that the vibration of the floor itself is prevented and the vibration of the floor can be quickly converged.
以下本発明の構成を実施例によってさらに詳しく説明す
る。Hereinafter, the structure of the present invention will be described in more detail with reference to Examples.
（実施例） （１） 第１図は床吊り型の制振装置の実施例を示す側
面図である。図において１は支柱、２はばね、３は鉄板
状の質量付加材である。そして支柱１の上端において床
に取付けられる。つぎに第２図は第１図のＡ−Ａ′線断
面図であって、図において１は支柱、２はばね、３は質
量付加材であり、４は板状の質量付加材を多数枚重ねて
固定するとめネジである。(Example) (1) FIG. 1 is a side view showing an example of a floor suspension type vibration damping device. In the figure, 1 is a pillar, 2 is a spring, and 3 is an iron plate-shaped mass addition material. Then, it is attached to the floor at the upper end of the column 1. Next, FIG. 2 is a sectional view taken along the line AA ′ in FIG. 1, in which 1 is a pillar, 2 is a spring, 3 is a mass addition material, and 4 is a large number of plate-shaped mass addition materials. It is a female screw when stacked and fixed.
そして第３図は第１図のＢ−Ｂ′線断面の一部を拡大し
た断面図である。図において１は支柱、２はばね、３は
質量付加材であり、５はばね２の上部位置において支柱
１に取付けた高減衰ゴムからなるダンパーである。第１
〜第３図から明らかなように、ばねを支柱に挿設し、ば
ねの上部位置にダンパーを取付け、そのダンパーを介し
て板状の質量付加材を多数枚積み重ねて全体を上記ばね
に担持させた構造となっている。そして第４図は上記構
造のものを床下に取付けた状態を示す斜視図である。図
において６は床、７は床を支持する梁である。FIG. 3 is an enlarged sectional view of a part of the section taken along the line BB ′ of FIG. In the figure, 1 is a column, 2 is a spring, 3 is a mass addition material, and 5 is a damper made of high damping rubber attached to the column 1 at the upper position of the spring 2. First
As is apparent from FIG. 3, the spring is inserted into the support column, the damper is attached to the upper position of the spring, and a large number of plate-shaped mass adding materials are stacked through the damper so that the whole spring is supported by the spring. It has a different structure. FIG. 4 is a perspective view showing a state in which the above structure is attached under the floor. In the figure, 6 is a floor, and 7 is a beam that supports the floor.
（２） 第５図は本発明の他の実施例である梁取付け型
の制振装置を示す正面図である。図において1,2,3は実
施例（１）と同様であるが８は２本の支柱を連絡するふ
れ止めの横桟である。また第６図（ａ）は第５図の側面
図であって、図において９は支柱の上、下端を支持し梁
に取付ける治具である。そして第６図（ｂ）は上記取付
治具９の拡大斜視図である。第７図（ａ）は第５図のＣ
−Ｃ′線断面を拡大した断面図である。図において１は
支柱、２はばね、３は質量付加材、５はダンパーであっ
て、９は取付治具である。第７図（ｂ）は、第５〜第７
図の質量付加材３を把持し、梁に取付けるブラケットの
拡大斜視図である。図において５はブラケット10に内蔵
したダンパーである。そしてこのブラケットは第７図
（ａ）の点線で示された位置に取付けるものである。(2) FIG. 5 is a front view showing a beam-mounted vibration damping device which is another embodiment of the present invention. In the figure, reference numerals 1, 2 and 3 are the same as those in the embodiment (1), but reference numeral 8 is a cross rail for connecting the two support columns. Further, FIG. 6 (a) is a side view of FIG. 5, and in the figure, 9 is a jig for supporting the upper and lower ends of a column and attaching it to a beam. FIG. 6 (b) is an enlarged perspective view of the mounting jig 9. FIG. 7 (a) is C of FIG.
It is sectional drawing which expanded the C'line cross section. In the figure, 1 is a column, 2 is a spring, 3 is a mass addition material, 5 is a damper, and 9 is a mounting jig. FIG. 7 (b) shows the fifth to the seventh.
It is an expansion perspective view of the bracket which holds the mass addition material 3 of a figure, and attaches it to a beam. In the figure, 5 is a damper built in the bracket 10. This bracket is attached to the position shown by the dotted line in FIG. 7 (a).
第８図は梁取付け型の制振装置の取付けた状態を示す斜
視図である。図において６は床、７は梁である。そして
梁取付け型の場合は梁のウエブ部の左、右両側に各々１
個、すなわち第８図の11と11′のように１対の構成によ
って１個の制振装置となる。そして本発明の実施例に示
す床振動の制振装置を床に取付けて振動の減衰効果を測
定したところ、制振装置を取付けない場合は変位応答時
刻歴がその位置によって差があるが大むね５〜９秒程で
あるが、制振装置を取付けた場合は、0.5〜１秒程度で
あるので、その振動減衰効果は顕著である。FIG. 8 is a perspective view showing a state where the beam-mounted vibration damping device is mounted. In the figure, 6 is a floor and 7 is a beam. And in the case of the beam mounting type, 1 on each of the left and right sides of the web of the beam
One, that is, one damping device is constituted by a pair of constitutions such as 11 and 11 'in FIG. When the vibration damping device for floor vibration shown in the embodiment of the present invention is attached to the floor and the vibration damping effect is measured, the displacement response time history varies depending on the position without the vibration damping device. It takes about 5 to 9 seconds, but when the vibration damping device is attached, it takes about 0.5 to 1 second, so that the vibration damping effect is remarkable.
（発明の効果） 本発明によれば、制振装置を床と共振させることにより
床のエネルギーを制振装置に移すことができ、床自体の
揺れの防止と床の振動を早く収束することができる。振
動の減衰効果を変位応答時刻歴で示せば、本発明の制振
装置を用いない場合に比べ約10分の１となる。(Effects of the Invention) According to the present invention, the energy of the floor can be transferred to the vibration damping device by resonating the vibration damping device with the floor, and it is possible to prevent shaking of the floor itself and quickly converge the vibration of the floor. it can. If the damping effect of vibration is shown by the displacement response time history, it is about one-tenth that in the case where the vibration damping device of the present invention is not used.
第１図ないし第４図は、本発明の床吊り型の制振装置の
実施例を示すものであり、第１図はその側面図、第２図
は第１図のＡ−Ａ′線断面図、第３図は第１図のＢ−
Ｂ′線断面の一部を拡大した断面図、第４図は床下に取
付けた状態を示す斜視図である。 そして第５図ないし第８図は、本発明の他の実施例であ
る梁取付け型の制振装置を示すものであり、第５図はそ
の正面図、第６図（ａ）は側面図、第６図（ｂ）は取付
治具の斜視図、第７図（ａ）は第５図のＣ−Ｃ′線断面
を拡大した断面図、第７図（ｂ）は制振装置を梁に取付
けるブラケットの斜視図、第８図は梁取付け型制振装置
の取付けた状態を示す斜視図である。 １……支柱、２……ばね、３……質量付加材、５……ダ
ンパー、６……床、７……梁、９……ブラケット。1 to 4 show an embodiment of a floor suspension type vibration damping device of the present invention. FIG. 1 is a side view thereof, and FIG. 2 is a sectional view taken along the line AA 'in FIG. Figures and 3 are B- in Figure 1.
FIG. 4 is an enlarged cross-sectional view of a part of the cross section taken along line B ′, and FIG. 4 is a perspective view showing a state of being attached under the floor. 5 to 8 show a beam mounting type vibration damping device which is another embodiment of the present invention. FIG. 5 is a front view thereof, and FIG. 6 (a) is a side view thereof. FIG. 6 (b) is a perspective view of the mounting jig, FIG. 7 (a) is an enlarged cross-sectional view taken along the line CC ′ of FIG. 5, and FIG. 7 (b) is a vibration damping device as a beam. FIG. 8 is a perspective view of a bracket to be attached, and FIG. 8 is a perspective view showing a state in which the beam attachment type vibration damping device is attached. 1 ... Support post, 2 ... Spring, 3 ... Mass addition material, 5 ... Damper, 6 ... Floor, 7 ... Beam, 9 ... Bracket.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｅ０４Ｆ 15/18 Ｇ 7416−2Ｅ Ｅ０４Ｈ 9/02 ３４１ Ｅ 9023−2Ｅ Ｆ１６Ｆ 15/02 Ｃ 9138−3Ｊ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location E04F 15/18 G 7416-2E E04H 9/02 341 E 9023-2E F16F 15/02 C 9138-3J
Claims (2)
ネルギーを吸収する制振装置において、支柱（１）にば
ね（２）を挿設し、ばね（２）の上部位置でダンパー
（５）が支柱（１）に取付けられており、かつ質量付加
材（３）が上記ダンパーを介してばね（２）に担持され
ている構造のものが、上記支柱の一端で床に取付けられ
ていることを特徴とする床振動の制振装置。1. A vibration damping device that absorbs vibration energy of a wide floor where vertical vibration is likely to occur, in which a spring (2) is inserted into a column (1), and a damper (5) is positioned above the spring (2). Is attached to the column (1), and the mass addition material (3) is carried by the spring (2) via the damper, and is attached to the floor at one end of the column. A vibration control device for floor vibration.
ネルギーを吸収する制振装置において、支柱（１）にば
ね（２）を挿設し、ばね（２）の上部位置でダンパー
（５）が支柱（１）に取付けられており、かつ質量付加
材（３）が上記ダンパーを介してばね（２）に担持され
ている構造のものの、上記支柱の上下端が床下の梁のウ
エブ部の両側において取付治具（９）、（９）によって
それぞれ支持され、かつ上記質量付加材（３）がダンパ
ー（５）を内蔵したブラケット（10）により支持されて
上記梁の両側に取付けられていることを特徴とする床振
動の制振装置。2. A vibration damping device for absorbing vibration energy of a wide floor where vertical vibration is likely to occur, in which a spring (2) is inserted into a column (1), and a damper (5) is placed above the spring (2). Is attached to the column (1), and the mass addition material (3) is carried by the spring (2) through the damper, but the upper and lower ends of the column are the web portion of the beam under the floor. Mounted on both sides of the beam by being supported by mounting jigs (9), (9) on both sides, respectively, and the mass adding material (3) being supported by a bracket (10) having a built-in damper (5). A vibration control device for floor vibrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23556289A JPH076300B2 (en) | 1989-09-13 | 1989-09-13 | Floor vibration damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23556289A JPH076300B2 (en) | 1989-09-13 | 1989-09-13 | Floor vibration damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03100244A JPH03100244A (en) | 1991-04-25 |
| JPH076300B2 true JPH076300B2 (en) | 1995-01-30 |
Family
ID=16987830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23556289A Expired - Fee Related JPH076300B2 (en) | 1989-09-13 | 1989-09-13 | Floor vibration damping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076300B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05302643A (en) * | 1992-04-15 | 1993-11-16 | Kobe Steel Ltd | Floor panel for housing |
| JPH08334148A (en) * | 1995-06-06 | 1996-12-17 | Tokico Ltd | Damping device |
| JP4043760B2 (en) * | 2001-11-05 | 2008-02-06 | 東日本旅客鉄道株式会社 | Vibration prevention device |
| JP4687092B2 (en) * | 2004-12-10 | 2011-05-25 | オイレス工業株式会社 | Dynamic vibration absorber and dynamic vibration absorber using the same |
| JP6134099B2 (en) * | 2012-02-23 | 2017-05-24 | 旭化成ホームズ株式会社 | Vibration control device and building |
| JP2013256817A (en) * | 2012-06-13 | 2013-12-26 | Shuji Endo | Double floor |
| JP6334881B2 (en) * | 2013-10-04 | 2018-05-30 | 株式会社竹中工務店 | Floor damping system |
| CN106400996A (en) * | 2016-09-07 | 2017-02-15 | 同济大学 | Vertical frequency adjustment mass damper for model test and design method of vertical frequency adjustment mass damper |
| CN106436947B (en) * | 2016-09-07 | 2019-08-06 | 同济大学 | A kind of damping device and its design method for longspan structure |
-
1989
- 1989-09-13 JP JP23556289A patent/JPH076300B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03100244A (en) | 1991-04-25 |
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