JP2750359B2 - Method and apparatus for suppressing vibration of tower-like structure - Google Patents
Method and apparatus for suppressing vibration of tower-like structureInfo
- Publication number
- JP2750359B2 JP2750359B2 JP1106920A JP10692089A JP2750359B2 JP 2750359 B2 JP2750359 B2 JP 2750359B2 JP 1106920 A JP1106920 A JP 1106920A JP 10692089 A JP10692089 A JP 10692089A JP 2750359 B2 JP2750359 B2 JP 2750359B2
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- Japan
- Prior art keywords
- tower
- response
- rotating
- traveling
- period
- Prior art date
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- Expired - Lifetime
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 この発明は風などの外力により塔状構造物に作用する
振動を抑制する方法と装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for suppressing vibration acting on a tower-like structure due to external force such as wind.
「従来の技術」 塔状構造物の風、地震による振動を低減し、構造物の
機能と居住性を改善する装置として、塔頂部に制振装置
を設置する方法が用いられている。また、構造物の内部
減衰を増すための各種ダンパが提案されている。特に展
望タワーなどの細長い構造物に設置された国内の事例で
はダイナミックダンパ、スロッシングダンパなどがあ
る。[Background Art] As a device for reducing the vibration of a tower-like structure due to wind and earthquake and improving the function and livability of the structure, a method of installing a vibration damping device at the top of the tower is used. In addition, various dampers for increasing the internal damping of a structure have been proposed. Especially in the case of domestic installation on slender structures such as observation towers, there are dynamic dampers and sloshing dampers.
ダイナミックダンパを用いた制振構法とは、建築物本
体の固有周期に同調させた小さな振動系（例えば、振り
子や油圧ダンパ）を付加することで、建築物本体の振動
を抑えようとする方法であり、また、スロッシングダン
パを用いた免震構法とは、建築物の上部に流体を満たし
たスロッシングタンクを設置し、建築物と流体の振動周
期を同調させるもので、スロッシングタンクの水が共振
することにより建築物の振動を抑えようとする方法であ
る。A vibration damping system using a dynamic damper is a method that suppresses the vibration of the building body by adding a small vibration system (for example, a pendulum or a hydraulic damper) tuned to the natural period of the building body. Yes, and seismic isolation using a sloshing damper is to install a sloshing tank filled with fluid at the top of the building and synchronize the vibration cycle of the building and the fluid, and the water in the sloshing tank resonates This is a method to suppress the vibration of the building.
「発明が解決しようとする課題」 ところが、建築物の中でも、細長い塔状の構造物にダ
イナミックダンパあるいはスロッシングダンパを用いた
制振構法を適用しようとした場合、以下に説明する問題
を生じるおそれがあった。"Problems to be solved by the invention" However, when applying a vibration damping method using a dynamic damper or a sloshing damper to an elongated tower-like structure in a building, the problem described below may occur. there were.
まず、塔状構造物が高くなってその振動周期が長周期
化した場合、ダイナミックダンパを用いた制振構法で
は、長周期化に対応させてダイナミックダンパの質量を
増加し、ストロークを長くする必要が生じるが、塔状構
造物ではダイナミックダンパのための余分の設置スペー
スを確保することは困難であり、仮に設置できたとして
も効率が悪く、周期調節が困難になる問題がある。First, when the vibration period of a tower-like structure becomes longer and its vibration period becomes longer, the vibration damping method using a dynamic damper requires an increase in the mass of the dynamic damper and a longer stroke in response to the longer period. However, it is difficult to secure an extra installation space for the dynamic damper in the tower-like structure, and even if it can be installed, there is a problem that the efficiency is low and the period adjustment becomes difficult.
また、塔状構造物が高くなってその振動周期が10数秒
〜30秒程度まで長周期化した場合、スロッシングダンパ
を用いた構法では、流体の安定したスロッシングによる
大きな反力が得られないおそれがあり、また、十分な反
力を得ようとするとスロッシングタンクが巨大になって
設置スペースを確保できない問題がある。In addition, when the tower-shaped structure becomes high and its oscillation cycle is extended to about 10 seconds to about 30 seconds, the construction method using the sloshing damper may not be able to obtain a large reaction force due to stable sloshing of the fluid. In addition, there is a problem that if a sufficient reaction force is to be obtained, the sloshing tank becomes huge and a sufficient installation space cannot be secured.
本発明は前記課題を解決するためになされたもので、
設置スペースの少ない塔状構造物にも容易に適用できて
効果的に制振効果を得ることができる振動抑制方法と振
動抑制装置を提供することを目的とする。The present invention has been made to solve the above problems,
An object of the present invention is to provide a vibration suppression method and a vibration suppression device that can be easily applied to a tower-like structure having a small installation space and can effectively obtain a vibration suppression effect.
「課題を解決するための手段」 請求項１に記載した発明は前記課題を解決するため
に、塔状構造物の上部側に該構造物の外周側に張り出す
環状の走行路を設けるとともに、該走行路に沿って個々
に走行することにより前記構造物を中心としてその周囲
を回転する２つ以上の回転体を設け、風などの外力によ
り塔状構造物に生じる応答運動の周期と方向を測定する
とともに、前記２つ以上の回転体を塔状構造物の応答運
動の周期と同じ周期であって、２つ以上の回転体の合成
反力で前記応答運動を打ち消すように回転させて塔状構
造物の振動を抑制するものである。"Means for solving the problem" In order to solve the problem, the invention described in claim 1 is provided with an annular traveling path projecting to the outer peripheral side of the tower-like structure on the upper side thereof, Providing two or more rotating bodies that rotate around the structure by traveling individually along the travel path, and determines the period and direction of the response motion generated in the tower-like structure by external force such as wind. While measuring, the tower is rotated by rotating the two or more rotators so as to cancel the response motion by the combined reaction force of the two or more rotators with the same period as the period of the response motion of the tower-like structure. This is to suppress the vibration of the structure.
請求項２に記載した発明は前記課題を解決するため
に、塔状構造物の上部側に該構造物の外周側に張り出す
環状の走行路を設けるとともに、該走行路に沿って個々
に走行することにより前記構造物を中心としてその周囲
を回転する２つ以上の回転体を設け、前記塔状構造物
に、風などの外力により塔状構造物に生じる応答運動の
周期と方向を測定するセンサを設け、前記塔状構造物
に、前記センサの検出した塔状構造物の応答運動の周期
と同一周期であって、塔状構造物の応答運動を打ち消す
方向に回転体を回転させる制御装置を設けてなるもので
ある。According to a second aspect of the present invention, in order to solve the above-mentioned problem, an annular traveling path is provided on the upper side of the tower-shaped structure and extends to the outer peripheral side of the structure, and the traveling path is individually run along the traveling path. By providing two or more rotating bodies that rotate around the structure around the structure, the period and direction of the response motion generated in the tower structure by external force such as wind on the tower structure are measured. A control device for providing a sensor and rotating the rotating body in the tower-like structure in a direction that is the same as the cycle of the response movement of the tower-like structure detected by the sensor and cancels the response movement of the tower-like structure Is provided.
「作用」 塔状構造物に風などの外力が作用した場合、塔状構造
物は外力に応答して運動するが、塔状構造物の上部側に
設けた２つ以上の回転体がそれぞれ塔状構造物を中心と
してその周囲を回転することで、塔状構造物に２つ以上
の回転体の慣性力に起因する合成反力を加え、応答運動
を抑制する。また、塔状構造物に対する運動抑制効果
は、設置する回転体の回転半径と質量に応じて増減でき
るので、塔状構造物の規模に応じた回転半径と質量の回
転体を設けることで塔状構造物の規模の大小にかかわら
ず所望の振動抑制効果を得ることができる。更に、塔状
構造物の内部に設置スペースが確保できない場合であっ
ても、塔状構造物の外周側に張り出すように環状の走行
路を設け、その走行路に沿って回転体を走行させること
により、設置スペースの制約を受けることなく実施がで
きる。"Action" When an external force such as wind acts on the tower-like structure, the tower-like structure moves in response to the external force. However, two or more rotating bodies provided on the upper side of the tower-like structure each have a tower. By rotating around the pillar-shaped structure, a synthetic reaction force caused by the inertial force of two or more rotating bodies is applied to the tower-shaped structure to suppress the response movement. In addition, the effect of suppressing the movement of the tower-like structure can be increased or decreased according to the turning radius and the mass of the rotating body to be installed. A desired vibration suppression effect can be obtained regardless of the size of the structure. Furthermore, even when the installation space cannot be secured inside the tower-like structure, an annular traveling path is provided so as to protrude to the outer peripheral side of the tower-like structure, and the rotating body travels along the traveling path. Thus, the present invention can be implemented without being restricted by the installation space.
「実施例」 第１図と第２図は本発明の一実施例を示すもので、塔
状構造物１の最上部近くに、最上部の塔状構造物１の外
径よりも大きな内径の環状の収納体3,3が、上下に所定
間隔離間して水平に、かつ、収納体３の中心と塔状構造
物１の軸心を位置合わせして設けられている。1 and 2 show an embodiment of the present invention, in which an inner diameter of the tower-like structure 1 is larger than the outer diameter of the uppermost tower-like structure 1 near the top. Annular storage bodies 3, 3 are provided horizontally at predetermined intervals vertically, with the center of the storage body 3 and the axis of the tower-like structure 1 being aligned.
前記収納体３は、第２図に示すように横断面円形状の
中空構造のもので、塔状構造物１の外周面から半径方向
に放射状に延出された複数の支持部材２によって支持さ
れ、収納体３の内部には、軌条（走行路）４が水平に敷
設されて、この軌条４は構造物１の外方を所定の半径で
周回している。そして、この軌条４の上部側と下部側に
は各々走行台車（回転体）5,6が軌条４に沿って走行自
在に係合されている。これらの走行台車5,6は各々自力
走行装置を備え、別個に軌条４に沿って自力走行できる
ようになっている。この走行台車5,6の走行装置は通常
一般の電気モータを用いた走行装置などを使用して差し
支えないが、リニアモータを利用した走行装置などを用
いることもできる。The storage body 3 has a hollow structure having a circular cross section as shown in FIG. 2, and is supported by a plurality of support members 2 radially extending from the outer peripheral surface of the tower-like structure 1 in the radial direction. A rail (travel path) 4 is horizontally laid inside the storage body 3, and the rail 4 circulates outside the structure 1 with a predetermined radius. Traveling carts (rotating bodies) 5 and 6 are respectively engaged with the upper and lower sides of the rail 4 so as to run along the rail 4. Each of the traveling carts 5 and 6 has a self-propelled traveling device, and can independently travel along the rail 4 independently. As the traveling devices of the traveling vehicles 5 and 6, a traveling device using a general electric motor may be used, but a traveling device using a linear motor may be used.
また、前記塔状構造体１の最上端部には、風などの外
力が原因となって塔状建築物１に生じる応答運動の状態
（運動方向と速度並びに位相や周期など）を測定するセ
ンサ７が設けられている。A sensor for measuring a state of a response motion (movement direction, speed, phase, period, and the like) generated in the tower-like building 1 due to an external force such as wind is provided at an uppermost end of the tower-like structure 1. 7 are provided.
更に前記塔状構造体１の最上端部には、前記センサ７
の計測結果を基に、走行台車5,6の走行装置を制御する
制御装置が設けられている。この制御装置は、センサ７
が計測した塔状構造体１の応答運動の周期と同一周期に
なるように走行台車5,6を走行させるものであり、か
つ、走行台車5,6が走行することによって生じる合成反
力を前記応答運動の方向と逆方向に作用させるものであ
る。Further, at the uppermost end of the tower-like structure 1, the sensor 7
A control device is provided for controlling the traveling devices of the traveling vehicles 5 and 6 based on the measurement results. This control device includes a sensor 7
The traveling vehicles 5 and 6 are caused to travel so as to have the same period as the response motion period of the tower-like structure 1 measured by the vehicle, and the combined reaction force generated by traveling of the traveling vehicles 5 and 6 is described above. It acts in the direction opposite to the direction of the response movement.
次に前記構造の塔状構造物１に風などによる外力が作
用した場合について説明する。Next, a case where an external force such as wind acts on the tower-like structure 1 having the above structure will be described.
走行台車5,6を制御装置によって個々に所定の角速度
（２π/T）で、しかも走行台車5,6に所定の位置関係を
維持させた状態で軌条４に沿って走行させる。これによ
り走行台車5,6は塔状構造物１の周囲を回転することに
なる。なお、前記式のＴは走行台車５あるいは走行台車
６の周期を示す。The traveling vehicles 5 and 6 are individually driven by the control device along the rail 4 at a predetermined angular velocity (2π / T) and with the traveling vehicles 5 and 6 maintaining a predetermined positional relationship. Thereby, the traveling vehicles 5 and 6 rotate around the tower-like structure 1. Note that T in the above equation indicates the cycle of the traveling vehicle 5 or the traveling vehicle 6.
ここで、塔状構造物１に風力による外力が作用すると
塔状構造物１は応答運動を開始する。この応答運動が開
始された場合、センサ７が塔状建築物１の応答運動の状
態（運動方向と速度並びに位相や周期）を検知する。こ
の場合に、制御装置は、走行台車5,6の回転運動の周期
Ｔを塔状構造物１の周期と見合うように制御するととも
に、走行台車5,6の回転運動の方向と位相を制御し、こ
れによって走行台車5,6の合成反力（制御力）を塔状構
造物１の移動方向と逆方向に向けて塔状構造物１の応答
運動を打ち消すような方向に作用させる。ここで、１つ
の走行台車の質量をＷと示し、走行台車の軌道半径をｒ
とすると、１つの走行台車でＦ＝Wr（２π/T）2なる式
で示される制御力が作用する。そして、この制御力は概
ね塔状構造物１の応答運動速度と逆位相になるように調
整される。なお、更に詳細には、前記制御装置は自動制
御理論に従って走行台車5,6の位置と回転数、それらに
含まれる誤差を調整しつつ応答運動に対応させて制御す
る。なお、塔状構造物１の応答運動が大きい場合、ある
いは複雑な運動になると予想される場合は、軌条４に沿
って走行させる走行台車5,6の数を増加することで対応
することができる。即ち、塔状構造物１に複数のモード
（１次モード、２次モード、ねじれモードなど）で応答
運動が現れた場合、モードごとに質量の異なる走行台車
を用意してそれらを走行させるようにすれば良い。Here, when an external force due to wind force acts on the tower-like structure 1, the tower-like structure 1 starts a response movement. When this response movement is started, the sensor 7 detects the state of the response movement of the tower-like building 1 (movement direction and speed, phase and period). In this case, the control device controls the period T of the rotational movement of the traveling vehicles 5 and 6 so as to match the period of the tower-like structure 1, and controls the direction and phase of the rotational movement of the traveling vehicles 5 and 6. Thereby, the combined reaction force (control force) of the traveling vehicles 5 and 6 is applied in a direction opposite to the moving direction of the tower-like structure 1 so as to cancel the response motion of the tower-like structure 1. Here, the mass of one traveling vehicle is denoted by W, and the track radius of the traveling vehicle is r.
Then, the control force represented by the formula of F = Wr (2π / T) 2 acts on one traveling vehicle. Then, the control force is adjusted so that the response movement speed of the tower-like structure 1 is substantially in the opposite phase. More specifically, the control device controls the positions and rotation speeds of the traveling vehicles 5 and 6 and the errors included in the traveling vehicles 5 and 6 in accordance with the response motion while adjusting them according to the automatic control theory. In addition, when the response motion of the tower-like structure 1 is large or when it is expected to be a complicated motion, it can be dealt with by increasing the number of the traveling vehicles 5 and 6 to travel along the rail 4. . That is, when response motions appear in the tower-like structure 1 in a plurality of modes (primary mode, secondary mode, torsion mode, etc.), traveling vehicles having different masses are prepared for each mode and run. Just do it.
ここで更に、走行台車5,6の回転方向と、走行台車5,6
により塔状構造物１に作用する慣性力（制御力）につい
て第４図ないし第６図を基に説明する。Here, further, the rotation directions of the traveling vehicles 5, 6 and the traveling vehicles 5, 6
The inertial force (control force) acting on the tower-shaped structure 1 will be described with reference to FIGS. 4 to 6.
まず、走行台車5,6の回転半径の中心を原点とする平
面座標を考えた場合、走行中の走行台車5,6が第４図の
平面座標上のｘ軸上に同時に位置するように第４図の矢
印方向に同一速度で移動させている状態では、制御力は
ｙ軸に沿う方向に生じる。また、走行台車5,6が第５図
の平面座標上のｙ軸上に同時に位置するように第５図の
矢印方向に同一速度で移動させている状態ではｘ軸に沿
う方向に制御力が生じる。更に、走行台車5,6の移動方
向と位相を調節すれば、第６図に示すように平面座標に
おいて、楕円状に制御力を作用させることができるの
で、塔状構造物１が楕円軌道を描くように外力により応
答運動した場合にも有効な振動抑制効果を得ることがで
きる。First, when considering the plane coordinates having the origin at the center of the radius of gyration of the traveling vehicles 5 and 6, the traveling vehicles 5 and 6 are moved so that the traveling vehicles 5 and 6 are simultaneously located on the x-axis on the plane coordinates in FIG. In the state in which the robot is moved at the same speed in the direction of the arrow in FIG. 4, the control force is generated in the direction along the y axis. Further, when the traveling vehicles 5, 6 are moved at the same speed in the direction of the arrow in FIG. 5 so that they are simultaneously positioned on the y-axis on the plane coordinates in FIG. 5, the control force is applied in the direction along the x-axis. Occurs. Further, if the moving directions and phases of the traveling vehicles 5, 6 are adjusted, the control force can be applied in an elliptical shape on the plane coordinates as shown in FIG. An effective vibration suppression effect can be obtained even when a response motion is caused by an external force as depicted.
従って前述のように走行台車5,6を走行させること
で、風などの外力により塔状構造物１に生じた応答運動
を効率良く抑制して塔状構造物１に制振効果をもたらす
ことができる。また、前記のような構造は、例えば、高
さ600m〜1000mにも及ぶ塔状構造物を構築した場合など
の免震構法として十分にその効果を期待できる。Therefore, by running the traveling vehicles 5 and 6 as described above, it is possible to efficiently suppress the response motion generated in the tower-like structure 1 due to external force such as wind and bring about a vibration damping effect on the tower-like structure 1. it can. In addition, the above-described structure can be expected to have a sufficient effect as a seismic isolation method when, for example, a tower-like structure having a height of 600 m to 1000 m is constructed.
第３図は塔状の構造物１に設ける収納体の他の例を示
すもので、この例の収納体３′は横断面楕円形状に形成
されたものである。この例のように収納体は横断面楕円
形状でも良いし、その他の形状でも差し支えない。いず
れにしても、本第１実施例では、収納体3,3′を構造物
１の外周に張り出すように設けてその内部に環状の軌条
（走行路）４を設け、その軌条４に沿って走行台車（回
転体）5,6を走行させることでそれらを構造物１の周囲
を周回させるようにしたものであるから、構造物１の内
部に設置スペースが確保できない場合にも適用可能であ
り、また走行路を構造物の平面積や外形輪郭に制約され
ることなく最適に設定することも可能であり、したがっ
て特に平面積の小さいタワーのような塔状構造物に適用
して最適である。ただし、塔状構造物に設ける収納体は
塔状構造物の美観を損なわないように意匠面で工夫する
ことが好ましい。FIG. 3 shows another example of the storage body provided in the tower-like structure 1. The storage body 3 'in this example is formed in an elliptical cross section. The storage body may have an elliptical cross section as in this example, or may have another shape. In any case, in the first embodiment, the storage bodies 3, 3 'are provided so as to protrude on the outer periphery of the structure 1, and an annular rail (running path) 4 is provided therein. The traveling carts (rotating bodies) 5 and 6 are made to travel around the perimeter of the structure 1, so that they can be applied even when the installation space cannot be secured inside the structure 1. Yes, it is also possible to optimally set the traveling path without being restricted by the plane area and outline of the structure, and therefore, it is particularly suitable for tower-like structures such as towers with a small plane area. is there. However, it is preferable that the storage body provided in the tower-like structure is devised in terms of design so as not to impair the appearance of the tower-like structure.
第７図と第８図はこの発明の第２実施例を示すもの
で、この例においては、塔状構造物10の最上部近くに、
塔状構造物10の外周面に沿って大径部11が形成され、こ
の大径部11が上下６層に区分され、各層の内部の最外周
には構造物10の外周側に張り出す位置に走行路が設けら
れ、そこに前記実施例の走行台車5,6と同等の走行台車1
2が走行自在に設けられている。また、塔状構造物10の
最上端部には前記実施例の場合と同等のセンサ７と制御
装置が設けられている。7 and 8 show a second embodiment of the present invention. In this embodiment, near the top of the tower-like structure 10,
A large-diameter portion 11 is formed along the outer peripheral surface of the tower-shaped structure 10, and the large-diameter portion 11 is divided into upper and lower six layers. A traveling path is provided, and a traveling vehicle 1 equivalent to the traveling vehicles 5 and 6 of the embodiment is provided there.
2 is provided for traveling freely. At the uppermost end of the tower-like structure 10, a sensor 7 and a control device equivalent to those in the above embodiment are provided.
この実施例においても前記実施例と同等の効果を得る
ことができる。なお、この実施例においては、６機の走
行台車12が設けられているので、塔状構造物10に複雑な
応答運動が生じた場合でも各台車12の走行状態を個別に
制御することで効果的な抑制効果を発揮できる。In this embodiment, the same effect as in the above embodiment can be obtained. In this embodiment, since six traveling trolleys 12 are provided, even if a complicated response motion occurs in the tower-like structure 10, the traveling state of each trolley 12 is controlled individually to obtain an effect. Effective suppression effect.
ところで、前記各実施例のように走行台車の回転によ
って一定の制御力を得る方法が有効なのは、塔状構造物
１の応答が風に対する場合などのように比較的定常な場
合に限られる。従って塔状構造物１の地震に対する応答
では地震主要動近傍での非定常性の強い外力に対する効
果は少ないが、主要動後の長時間持続する自由振動の成
分に対しては十分に有効であり、この場合に振動抑制効
果を十分に発揮できる。By the way, the method of obtaining a constant control force by the rotation of the traveling vehicle as in each of the above embodiments is effective only when the response of the tower-like structure 1 is relatively steady, such as when the response to the wind. Therefore, the response of the tower-like structure 1 to the earthquake is small in the effect of strong non-stationary external forces near the main earthquake motion, but is sufficiently effective for the component of free vibration that lasts for a long time after the main motion. In this case, the effect of suppressing vibration can be sufficiently exhibited.
「発明の効果」 以上説明したように本発明は、風などの外力により塔
状構造物に生じる応答運動を塔状構造物の周囲を回転す
る２つ以上の回転体の合成反力により抑制するので、風
などの外力に体して振動抑制効果の高い塔状構造物を得
ることができる。また、回転体の回転速度と位相と周期
を調節することで、塔状構造物に作用する総ての方向の
応答運動を効果的に抑制することができる。更に、回転
体の質量と回転半径を調節することで、合成反力の大小
を調整できるので、塔状構造物の規模の大小にかかわら
ず適用することができる。しかも、回転体の走行路を構
造物の外周に張り出すように設けて、構造物の周囲を周
回するように回転体を走行させるものとしたから、構造
物の内部に設置スペースが確保できない場合にも適用可
能であり、また走行路を構造物の平面積や外形輪郭に制
約されることなく最適に設定することも可能であり、特
に平面積の小さいタワーのような塔状構造物に適用して
最適である。[Effects of the Invention] As described above, the present invention suppresses a response motion generated in a tower-like structure by an external force such as wind by a combined reaction force of two or more rotating bodies rotating around the tower-like structure. Therefore, a tower-like structure having a high vibration suppression effect against external force such as wind can be obtained. In addition, by adjusting the rotation speed, phase, and period of the rotating body, it is possible to effectively suppress the response movement in all directions acting on the tower-like structure. Further, by adjusting the mass and the turning radius of the rotating body, the magnitude of the resultant reaction force can be adjusted, so that the present invention can be applied regardless of the size of the tower-like structure. Moreover, since the running path of the rotating body is provided so as to protrude to the outer periphery of the structure, and the rotating body travels around the structure, the installation space cannot be secured inside the structure. It is also possible to set the traveling path optimally without being restricted by the plane area and outline of the structure, especially for tower-like structures such as towers with a small plane area. Best to do.
第１図と第２図はこの発明の第１実施例を示すもので、
第１図は塔状構造物の側面図、第２図は振動抑制装置の
断面図、第３図は収納体の他の例を示す断面図、第４図
は振動系の挙動状態について説明するための説明図、第
５図は振動系の挙動状態について説明するための説明
図、第６図は振動系の挙動について説明するための説明
図、第７図と第８図はこの発明の第２実施例を示すもの
で、第７図は塔状構造物の側面図、第８図は要部拡大図
である。 1,10……塔状構造物、3,3′,11……収納体、４……軌条
（走行路）、5,6,12……走行台車（回転体）、７……セ
ンサ。FIG. 1 and FIG. 2 show a first embodiment of the present invention.
FIG. 1 is a side view of a tower-like structure, FIG. 2 is a cross-sectional view of a vibration suppressing device, FIG. 3 is a cross-sectional view showing another example of a housing, and FIG. FIG. 5 is an explanatory diagram for explaining the behavior state of the vibration system, FIG. 6 is an explanatory diagram for explaining the behavior of the vibration system, FIG. 7 and FIG. 7 shows a side view of a tower-like structure, and FIG. 8 is an enlarged view of a main part, showing two embodiments. 1,10 ... tower-like structure, 3,3 ', 11 ... storage body, 4 ... rail (travel path), 5,6,12 ... travel cart (rotary body), 7 ... sensor.
Claims (2)
張り出す環状の走行路を設けるとともに、該走行路に沿
って個々に走行することにより前記構造物を中心として
その周囲を回転する２つ以上の回転体を設け、風などの
外力により塔状構造物に生じる応答運動の周期と方向を
測定するとともに、前記２つ以上の回転体を塔状構造物
の応答運動の周期と同じ周期であって、２つ以上の回転
体の合成反力で前記応答運動を打ち消すように回転させ
て塔状構造物の振動を抑制することを特徴とする塔状構
造物の振動抑制方法。1. An annular traveling path extending over an outer peripheral side of a tower-like structure is provided above the tower-like structure, and each of the traveling paths is individually run along the traveling path so that the structure is centered around the structure. Providing two or more rotating bodies for rotating the, and measuring the period and direction of the response movement generated in the tower-like structure by external force such as wind, and connecting the two or more rotating bodies to the response movement of the tower-like structure The same period as the period, wherein the vibration of the tower-like structure is suppressed by rotating so as to cancel the response motion by a combined reaction force of two or more rotating bodies, thereby suppressing the vibration of the tower-like structure. Method.
張り出す環状の走行路を設けるとともに、該走行路に沿
って個々に走行することにより前記構造物を中心として
その周囲を回転する２つ以上の回転体を設け、前記塔状
構造物に、風などの外力により塔状構造物に生じる応答
運動の周期と方向を測定するセンサを設け、前記塔状構
造物に、前記センサの検出した塔状構造物の応答運動の
周期と同一周期であって、塔状構造物の応答運動を打ち
消す方向に回転体を回転させる制御装置を設けてなるこ
とを特徴とする塔状構造物の振動抑制装置。2. An annular traveling path extending over the outer periphery of the tower-shaped structure is provided on the upper side of the tower-like structure. Providing two or more rotating bodies for rotating the, tower-shaped structure, provided with a sensor for measuring the period and direction of the response motion generated in the tower-shaped structure by external force such as wind, the tower-shaped structure, A tower having a same period as a period of a response motion of the tower-like structure detected by the sensor, and having a control device for rotating the rotating body in a direction to cancel the response movement of the tower-like structure. Vibration suppression device for structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1106920A JP2750359B2 (en) | 1989-04-26 | 1989-04-26 | Method and apparatus for suppressing vibration of tower-like structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1106920A JP2750359B2 (en) | 1989-04-26 | 1989-04-26 | Method and apparatus for suppressing vibration of tower-like structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02285177A JPH02285177A (en) | 1990-11-22 |
| JP2750359B2 true JP2750359B2 (en) | 1998-05-13 |
Family
ID=14445861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1106920A Expired - Lifetime JP2750359B2 (en) | 1989-04-26 | 1989-04-26 | Method and apparatus for suppressing vibration of tower-like structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2750359B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2417499B (en) * | 2004-08-24 | 2010-02-17 | Marks Barfield Ltd | Observation tower |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63293283A (en) * | 1987-05-23 | 1988-11-30 | 株式会社 九段建築研究所 | Vibration generating and dampening apparatus of high construction |
| JPH0296064A (en) * | 1988-09-30 | 1990-04-06 | Taisei Corp | Vibration controlling of high-rise construction |
-
1989
- 1989-04-26 JP JP1106920A patent/JP2750359B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02285177A (en) | 1990-11-22 |
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