JPH0441873A - Damping device - Google Patents
Damping deviceInfo
- Publication number
- JPH0441873A JPH0441873A JP14633490A JP14633490A JPH0441873A JP H0441873 A JPH0441873 A JP H0441873A JP 14633490 A JP14633490 A JP 14633490A JP 14633490 A JP14633490 A JP 14633490A JP H0441873 A JPH0441873 A JP H0441873A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- building
- weights
- damping
- natural frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 38
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、風圧力や地震力のような外力を受けて揺れる
建築物ような制振対象物の揺れを緩和するための制振装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a vibration damping device for mitigating the shaking of a damped object such as a building that sways due to external forces such as wind pressure or seismic force. .
（従来の技術）
従来、共振現象を利用して建築物の揺れを緩和する振子
式制振装置が知られている。この制振装置は、建築物に
揺動可能に吊り下げられた重りと、前記重りの揺動を減
衰するための減衰手段とを含む（特開昭６３−２５４２
４７号）。(Prior Art) Pendulum-type vibration damping devices that utilize resonance phenomena to alleviate the shaking of buildings have been known. This vibration damping device includes a weight swingably suspended from a building and a damping means for damping the swing of the weight (Japanese Patent Laid-Open No. 63-2542
No. 47).
（発明か解決しようとする課Ｎ）
前記従来の制振装置では、重りの重量が建築物の重量の
約１％に設定され、重りが建築物と共振可能であるよう
に、重りの振動周期が建築物に固有の振動周期に合致さ
れる。(Invention or problem to be solved N) In the conventional vibration damping device, the weight of the weight is set to about 1% of the weight of the building, and the vibration period of the weight is adjusted so that the weight can resonate with the building. is matched to the vibration period specific to the building.
建築物の固有振動周期は、例えば鉄骨造の建築物の場合
、建築物の階数に０．１を乗じた値にほぼ等しいとされ
ている。これによれば、例えば５０階建ての超高層建築
物の固有振動周期は約５秒であり、また、前記重りの振
動周期を約５秒に設定するために必要な前記重りの吊り
部材の長さ、すなわち吊り長さは約６．２■である。こ
れは建築物の一層階の高さ寸法を越える長さであり、し
たがって、高層の建築物における前記−層階への前記制
振装置の設置は実質的に不可能である。For example, in the case of a steel-framed building, the natural vibration period of a building is said to be approximately equal to the number of floors of the building multiplied by 0.1. According to this, for example, the natural vibration period of a 50-story high-rise building is about 5 seconds, and the length of the hanging member of the weight required to set the vibration period of the weight to about 5 seconds. In other words, the hanging length is approximately 6.2 cm. This length exceeds the height dimension of the first floor of a building, and therefore, it is virtually impossible to install the vibration damping device on the first floor of a high-rise building.
本発明の目的は、重りの吊り長さを増大させることなし
に固有振１周期を長くすることができる振子式制振装置
を提供することにある。An object of the present invention is to provide a pendulum-type vibration damping device that can lengthen one period of natural vibration without increasing the hanging length of the weight.
（課題を解決するための手段）
本発明に係る制振装置は、制振対象物に揺動可能に吊り
下げられた第１の重りと、前記制振対象物上に配置され
た第２の重りであフて前記第１の重りの揺動時にその水
平方向力を受けて前記制振対象物上を移動するように前
記第１の重りに接続された第２の重りと、前記第１の重
りまたは前記第２の重りの運動を減衰するための減衰手
段とを備える。(Means for Solving the Problems) A vibration damping device according to the present invention includes a first weight swingably suspended from an object to be damped, and a second weight disposed on the object to be damped. a second weight connected to the first weight so as to move over the vibration damping object in response to the horizontal force when the first weight swings; or damping means for damping the movement of the weight or the second weight.
前記第１の重りの吊り長さを調整するための調整手段を
設けることができる。Adjustment means for adjusting the hanging length of the first weight can be provided.
（発明の作用および効果）
本発明によれば、制振対象物に吊持された第１の重りに
、揺動時の第１の重りの水平方向力を受けて制振対象物
上を移動する第２の重りを接続した結果、第１および第
２の重りの重量を増減することによフて振子式制振装置
の固有振動周期を決定することが可能となり、このため
、第１の重りの吊り長さを増大させることなしに前記固
有振動周期の増大を図ることができる。(Operations and Effects of the Invention) According to the present invention, the first weight suspended by the vibration damping object moves on the vibration damping object by receiving the horizontal force of the first weight during rocking. As a result of connecting the second weight that The natural vibration period can be increased without increasing the hanging length of the weight.
前記第１の重りの吊り長さ調整手段を設けることにより
、例えば、装置の設定固有振動周期の微調整を容易に行
なうことができる。By providing the suspension length adjusting means for the first weight, for example, the set natural vibration period of the device can be easily finely adjusted.
（実施例）
第１図〜第４図を参照すると、全体を符号１゜で示す本
発明に係る振子式の制振装置が、門形のフレーム１，２
を介して、制振対象物の一例である建築物１４に取り付
けられている。制振装置ｉ１０は、フレーム１２を介在
させることなしに、建築物１４の構成部材である梁や床
スラブに支持させることができる。また、制振装置１０
は、地震力や風力を受けて揺れる建築物１４の最も揺れ
の大きい場所である屋上や、最上階層内に設置すること
が望ましい。(Embodiment) Referring to FIGS. 1 to 4, a pendulum-type vibration damping device according to the present invention, which is indicated by the reference numeral 1° as a whole, is constructed using gate-shaped frames 1 and 2.
It is attached to a building 14, which is an example of an object to be damped, via. The damping device i10 can be supported by a beam or a floor slab that is a component of the building 14 without intervening the frame 12. In addition, the vibration damping device 10
It is desirable to install it on the rooftop or in the top floor, which is the place where the building 14 shakes the most due to earthquake force or wind force.
制振装置ｌＯは、フレーム１２に吊り下げられた第１の
重り１６と、建築物１４の平面上に配置された第２の重
り１８とを含む。The damping device IO includes a first weight 16 suspended from a frame 12 and a second weight 18 placed on the plane of the building 14.
１ｉの重り１６は、棒材、ワイヤ、ローブ、チェーン等
から成る複数の吊り部材２０でフレーム１２に吊り下げ
られている。第１の重り１６が矢印２４の方向へ揺動す
ることができるように、各吊り部材２０の上下両端部が
フレーム１２と第１の重り１６とにそれぞれ枢着されて
いる。各吊り部材２０には、第１の重り１６の吊り長さ
すなわち吊り部材２０の長さ寸法を調整することができ
るように、タンーンバックル、チェーンブロック等から
成る調整手段２２を設けることが望ましい。The weight 16 of 1i is suspended from the frame 12 by a plurality of hanging members 20 made of bars, wires, lobes, chains, etc. Both upper and lower ends of each hanging member 20 are pivotally connected to the frame 12 and the first weight 16, respectively, so that the first weight 16 can swing in the direction of the arrow 24. Each hanging member 20 is preferably provided with an adjustment means 22 such as a turn buckle, a chain block, etc. so that the hanging length of the first weight 16, that is, the length dimension of the hanging member 20 can be adjusted.
第２の重り１８には前記平面上を転勤可能の車輪２６が
取り付けられている。第２の重り１８は接続手段２８を
介して第１の重り１６に接続されている。接続手段２８
は第１および第２の重り１６．１８に枢着された棒材か
ら成り、該棒材は矢印２４の方向と直角な水平方向（紙
面方向）に伸びる枢軸線の周りに揺動可能である。した
がって、第１の重り１−６が矢印２４の方向へ揺動する
とき、接続手段２８はその枢軸線の周りに揺動し、第２
の重り１８は矢印３ｏの方向へ直線的に移動する。接続
手段２８は前記枢軸線の周りに揺動可能であることから
、揺動するときの第１の重り１６の上下方向への変位を
許しかつ第１の重り１６の水平方向への変位を第２の重
りに伝達する。その結果、第１の重り１６の揺動に従フ
て第２の重り１８が直線方向へ往復動する。Wheels 26 are attached to the second weight 18, which are movable on the plane. The second weight 18 is connected to the first weight 16 via connecting means 28 . Connection means 28
consists of a bar pivotally connected to first and second weights 16.18, the bar being swingable about a pivot line extending in the horizontal direction (in the plane of the paper) perpendicular to the direction of arrow 24. . Therefore, when the first weight 1-6 swings in the direction of the arrow 24, the connecting means 28 swings about its axis and the second
The weight 18 moves linearly in the direction of the arrow 3o. Since the connecting means 28 is swingable around the pivot line, it allows the first weight 16 to move in the vertical direction when swinging, and prevents the first weight 16 from moving in the horizontal direction. Transfer to the second weight. As a result, as the first weight 16 swings, the second weight 18 reciprocates in the linear direction.
第１の重り１６の揺動を減衰するための油圧ダンパのよ
うな減衰手段３２が、矢印３ｏの方向に向けて配置され
かつ第１の重り１６と建築物１４とに連結されている。Damping means 32, such as a hydraulic damper, for damping the swinging of the first weight 16 are arranged in the direction of the arrow 3o and connected to the first weight 16 and the building 14.
第２の重り１８を第１の重り１６の側方に配置する第１
図の例に代えて、第２図に示すように、第２の重り１８
を第１の重り１６の下方に配置することができる。この
例では、両重り１６．１８の連結手段２８が、第１の重
り１６の底部に固定され下方へ伸びる軸部材３４と、第
２の重り１８の頂部に固定され、軸部材３４を受は入れ
るブシュ３６とから成る。この連結手段によれば、第１
の重り１６が矢印２４の方向へ揺動するとき、すなわち
軸部材３４が上下方向および水平方向に変位するとき、
ブシュ３６は軸部材の３４の上下方向への変位を許し、
また、ブシュ３６は軸部材３４の水平方向力を受けて矢
印３０の方向へ移動する。この例では、矢印３０の方向
へ向けられた油圧ダンパ２６が建築物１４と第２の重り
１８とに連結されている。The first weight 18 is placed on the side of the first weight 16.
Instead of the example shown, as shown in FIG.
can be placed below the first weight 16. In this example, the connecting means 28 of both weights 16, 18 are fixed to a shaft member 34 fixed to the bottom of the first weight 16 and extending downward, and to the top of the second weight 18, and the coupling means 28 of the two weights 16, 18 are fixed to the top of the second weight 18, It consists of a bush 36 for inserting. According to this connecting means, the first
When the weight 16 swings in the direction of the arrow 24, that is, when the shaft member 34 is displaced in the vertical and horizontal directions,
The bush 36 allows vertical displacement of the shaft member 34,
Further, the bushing 36 receives the horizontal force of the shaft member 34 and moves in the direction of the arrow 30. In this example, a hydraulic damper 26 oriented in the direction of arrow 30 is coupled to building 14 and second weight 18 .
第３図を参照すると、第１の重り１６が、第２の重り１
８に設けられた凹所３８に受は入れられている。第１の
重り１６は、しかし、静止および揺動のいずれのときも
、凹所３８を規定する第２の重り１８の壁面には接しな
い。この例によれば、第１図の例に比べて両重り１６．
１８が占める面積を小さくし、また、第２図の例に比べ
て両重りの高さ寸法を小さくすることが可能である。Referring to FIG. 3, the first weight 16 is connected to the second weight 1
The receiver is placed in a recess 38 provided at 8. The first weight 16, however, does not touch the wall of the second weight 18 defining the recess 38, neither when stationary nor when swinging. According to this example, both weights 16.
It is possible to reduce the area occupied by 18 and also to reduce the height dimension of both weights compared to the example shown in FIG.
前記した各側によれば、建築物１４が矢印３０の方向に
揺れるとき、第１の重り１６が矢印２４の方向に揺動し
、これに追随して第２の重り１８が直線運動をする。第
１および第２の重り１６゜１８の運動は油圧ダンパ３２
の働きにより、減衰され、これによって建物の揺れが緩
和される。According to each side described above, when the building 14 swings in the direction of the arrow 30, the first weight 16 swings in the direction of the arrow 24, and the second weight 18 follows this and moves linearly. . The movement of the first and second weights 16°18 is controlled by the hydraulic damper 32.
The effect of this is to attenuate the shaking of the building.
ところで、このときの第１および第２の重り１６．１８
の運動すなわち振動の周期は、第１および第２の重り１
６．１８の質量をｍＩ、ｍ２、各吊り部材２０の長さ寸
法を２、重力加速度をｇとすると、２π ｍｌ ＋
ｍ２ ｇｍ＋で表わされる。このことから、装置１
０の固有振動周期は、吊り部材２０の長さ寸法または第
１および第２の重り１６．１８の質量の大きさに応じて
変わる。したがって、両重り１６．１８の重量によって
定まる（ （ｍ、＋ｍ２ ）／ｍｒ ）の値を増大させ
ることにより、吊り部材２０の長さ寸法を大きくするこ
となしに装置ｔｏの周期を長くすることができる。装Ｍ
１０の固有振動周期を建築物の固有振動周期に合致する
ように設定し、また、両重り１６．１８の合計重量（ｍ
Ｉ ＋ｍ２ ）を建築物１４の重量の約１％に設定すれ
ば、建築物１４が揺れるとき、これに両重り１６．１８
を共振させることができる。By the way, the first and second weights at this time are 16.18
The period of motion or vibration of the first and second weights 1
If the mass of 6.18 is mI, m2, the length of each hanging member 20 is 2, and the gravitational acceleration is g, then 2π ml +
It is expressed as m2 gm+. From this, device 1
The natural vibration period of 0 changes depending on the length dimension of the hanging member 20 or the mass size of the first and second weights 16.18. Therefore, by increasing the value of ((m, +m2)/mr) determined by the weights of both weights 16.18, it is possible to lengthen the cycle of the device to without increasing the length dimension of the hanging member 20. can. Mounting M
The natural vibration period of 10 is set to match the natural vibration period of the building, and the total weight of both weights (16.18 m
If I + m2) is set to approximately 1% of the weight of the building 14, when the building 14 sways, both weights 16.18
can resonate.
また、建築物１４はその内装の設計変更等のためにその
設計重量と完成時の重量との間に差が生し、このために
建築物の固有振動数がわずかに変動することがある。こ
のわずかな変動に対応すべく両重り１６．１８の重量を
変更することには多大の労力と時間とを要する。これを
回避するために、調整手段２０を操作して装置の固有振
動周期を調整することが望ましい。Furthermore, due to changes in the design of the interior of the building 14, there is a difference between the design weight and the weight at the time of completion, which may cause the natural frequency of the building to vary slightly. It takes a great deal of effort and time to change the weights of both weights 16 and 18 to accommodate this slight variation. In order to avoid this, it is desirable to operate the adjusting means 20 to adjust the natural vibration period of the device.
次に、第４図を参照すると、この制振装置１０において
は、第２の重り１８が、前記車輪ではなく、平面上の互
いに直角な方向に伸びる二対のレール４０．４２と、両
レール４０．４２上を滑動可能の口封（但し、二対のみ
図示されている。）のスライダ４４．４６を介して建築
物１４に接している。より詳細には、建築物１４に固定
され矢印３０の方向に伸びる一対のレール４０上に、板
部材４８の一方の面に固定された二対のスライダ４４が
あり、板部材４８の他の一方の面に固定された他の一対
のレール４２上に二対のスライダ４４があり、スライダ
４４は第２の重り１８の底部に固定されている。Next, referring to FIG. 4, in this vibration damping device 10, the second weight 18 is not attached to the wheels but to two pairs of rails 40, 42 extending in mutually perpendicular directions on a plane, and both rails. It contacts the building 14 via sliders 44, 46 of the seals (however, only two pairs are shown) which can be slid on 40, 42. More specifically, there are two pairs of sliders 44 fixed to one side of a plate member 48 on a pair of rails 40 fixed to the building 14 and extending in the direction of the arrow 30, and two pairs of sliders 44 fixed to one side of the plate member 48. There are two pairs of sliders 44 on the other pair of rails 42 fixed to the surface of the slider 42, and the sliders 44 are fixed to the bottom of the second weight 18.
第４図に示す第１の重り１６は、建築物１４が矢印３０
の方向またはこれと直角な方向（紙背方向）に揺れると
きに矢印２４の方向または前記紙背方向へ揺動可能であ
り、第１の重り１６の揺動に従って、第２の重り１８は
レール４０およびスライダ４４、または、レール４２お
よびスライダ４６の案内作用のもとに、滑動可能である
。この例では、矢印３０の方向に向けられた油圧ダンパ
３２が板部材４８と建築物１４とに連結されている。ま
た、矢印３０と直角な水平方向（紙背方向）に向けられ
た油圧ダンパ（図示せず）が第２の重り１８と板部材４
８とに連結されている。言うまでもなく、油圧ダンパは
、第１または第２の重り１６．１８の矢印３０の方向お
よびこれと直角な水平方向への減衰のために配置され、
この目的のために任意に配置されかつ連結される。第４
図に示す例によれば、互いに直角な二方向に関して制振
効果を及ぼすことができる。The first weight 16 shown in FIG.
or in a direction perpendicular thereto (paper spine direction), the second weight 18 can swing in the direction of the arrow 24 or in the paper spine direction, and as the first weight 16 swings, the second weight 18 moves toward the rail 40 and It is slidable under the guidance of the slider 44 or the rail 42 and the slider 46. In this example, a hydraulic damper 32 oriented in the direction of arrow 30 is connected to plate member 48 and building 14 . In addition, a hydraulic damper (not shown) directed in the horizontal direction (toward the back of the paper) perpendicular to the arrow 30 is connected to the second weight 18 and the plate member 4.
8. Needless to say, the hydraulic damper is arranged for damping the first or second weight 16.18 in the direction of the arrow 30 and in a horizontal direction perpendicular thereto;
Arbitrarily arranged and connected for this purpose. Fourth
According to the example shown in the figure, a damping effect can be exerted in two directions perpendicular to each other.
第１図、第２図および第３図は、それぞれ、上の二方向
のそれぞれに制振作用を及ぼすことができる割振装置の
概略的な正面図である。
１０：制振装置、
１２：フレーム、
１４：建築物、
１６．１８：第１および第２の重り、
２０コ吊り部材、
２２：調整手段、
３２：油圧ダンパ（減衰手段）。1, 2 and 3 are respectively schematic front views of an allocation device capable of exerting a damping effect in each of the two upper directions. 10: Vibration damping device, 12: Frame, 14: Building, 16.18: First and second weights, 20 hanging members, 22: Adjustment means, 32: Hydraulic damper (damping means).
Claims (2)
りと、前記制振対象物上に配置された第２の重りであっ
て前記第１の重りの揺動時にその水平方向力を受けて前
記制振対象物上を移動するように前記第１の重りに接続
された第２の重りと、前記第１の重りまたは前記第２の
重りの運動を減衰するための減衰手段とを含む、制振装
置。(1) A first weight swingably suspended from a vibration damping object, and a second weight placed on the vibration damping object, which is horizontal when the first weight swings. a second weight connected to the first weight so as to move on the damping object in response to a directional force; and damping for damping the movement of the first weight or the second weight. A vibration damping device comprising means.
めの調整手段を含む、請求項（１）に記載の制振装置。(2) The vibration damping device according to claim (1), further comprising an adjusting means for adjusting a hanging length of the first weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146334A JP2761966B2 (en) | 1990-06-06 | 1990-06-06 | Damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146334A JP2761966B2 (en) | 1990-06-06 | 1990-06-06 | Damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441873A true JPH0441873A (en) | 1992-02-12 |
| JP2761966B2 JP2761966B2 (en) | 1998-06-04 |
Family
ID=15405341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2146334A Expired - Fee Related JP2761966B2 (en) | 1990-06-06 | 1990-06-06 | Damping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2761966B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005282815A (en) * | 2004-03-30 | 2005-10-13 | Daiwa House Ind Co Ltd | Multiplex series type tuned mass damper |
| US8197925B2 (en) | 2003-07-16 | 2012-06-12 | Dupont Teijin Films U.S. Limited Partnership | Self-venting polymeric film |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6484953B2 (en) * | 2014-08-08 | 2019-03-20 | 株式会社大林組 | Vibration control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113143A (en) * | 1989-09-26 | 1991-05-14 | Kayaba Ind Co Ltd | Vibration suppressing device for structure |
-
1990
- 1990-06-06 JP JP2146334A patent/JP2761966B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113143A (en) * | 1989-09-26 | 1991-05-14 | Kayaba Ind Co Ltd | Vibration suppressing device for structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197925B2 (en) | 2003-07-16 | 2012-06-12 | Dupont Teijin Films U.S. Limited Partnership | Self-venting polymeric film |
| JP2005282815A (en) * | 2004-03-30 | 2005-10-13 | Daiwa House Ind Co Ltd | Multiplex series type tuned mass damper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2761966B2 (en) | 1998-06-04 |
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| LAPS | Cancellation because of no payment of annual fees |