JPS63114774A - Vibration damping apparatus of building - Google Patents
Vibration damping apparatus of buildingInfo
- Publication number
- JPS63114774A JPS63114774A JP26004386A JP26004386A JPS63114774A JP S63114774 A JPS63114774 A JP S63114774A JP 26004386 A JP26004386 A JP 26004386A JP 26004386 A JP26004386 A JP 26004386A JP S63114774 A JPS63114774 A JP S63114774A
- Authority
- JP
- Japan
- Prior art keywords
- building
- vibration
- mass block
- damping device
- floor
- 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 description 58
- 229920001971 elastomer Polymers 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 15
- 230000000737 periodic effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
この発明は1例えば超高層又は超々高層ビル、あるいは
軒高はさほど高くないけれども敷地の制限で細長い形状
とされた建物、又は展望塔とか空港管制塔のような塔状
構造物、さらには免震装置を導入した建物など長い周期
の揺れ易い建物の内部に設置され、同建物の揺れに共振
する別異の振動系を構成して建物の振動エネルギを吸収
する制振装置に係り、さらにいえば所望重量の質量ブロ
ックとこれを水平振動が自在に支える積層ゴム脚及び減
衰装置とより成り、かつ重層構造とすることが容易に可
能で建物の複数の固有周期に対し多自由度系で制振効果
を発揮する、建物の制振装置に関する。[Detailed Description of the Invention] Industrial Application Fields This invention is applicable to 1. For example, super high-rise or ultra-high-rise buildings, or buildings whose eaves are not very high but have an elongated shape due to site restrictions, or observation towers and airport control towers. It is installed inside buildings that are prone to long-period shaking, such as tower-like structures such as buildings that are equipped with seismic isolation devices, and creates a different vibration system that resonates with the shaking of the same building to absorb the vibration energy of the building. More specifically, it consists of a mass block of a desired weight, laminated rubber legs that freely support horizontal vibrations, and a damping device, and it can easily be made into a multilayer structure, and can be used for multiple buildings. This invention relates to a vibration damping device for buildings that exerts a damping effect in a multi-degree-of-freedom system with respect to the natural period of the building.
従来の技術
■ m5図に示した制振装置は、千葉ポートタワーに実
施されたもので、基礎フレーム31上にY方向レール3
2.32を設けてその上にY方向の質量ブロック33を
往復移動自在に設置し、その−側縁部に形成したY方向
ラック35に基礎フレーム31上の回転式減衰装m34
(粘性ダンパー)のビニオン34′が1纏み合わされて
いる。また、前記Y方向の質量ブロック33上に設けた
X方向レ−/l/36.、36にX方向の質量ブロック
37を往復移動自在に設置し、その−側縁部に形成した
X方向ラック38には前記Y方向質量ブロック33上に
設けた回転式減衰装置39のビニオン39′が噛み合わ
されている。Conventional technology ■ The vibration damping device shown in Fig. m5 was implemented in the Chiba Port Tower, and the Y-direction rail 3 is mounted on the foundation frame 31.
2.32, on which a Y-direction mass block 33 is reciprocatably installed, and a rotary damping device m34 on the base frame 31 is mounted on a Y-direction rack 35 formed on the negative side edge.
(viscous damper) binions 34' are tied together. Also, the X-direction beam /l/36. provided on the Y-direction mass block 33. , 36, an X-direction mass block 37 is installed so as to be reciprocally movable, and an X-direction rack 38 formed on the negative side edge thereof has a binion 39' of a rotary damping device 39 provided on the Y-direction mass block 33. are interlocked.
■ 第6図に示し九制振装置は、120mの鉄塔支持型
煙突に実施されたものとして日本建築学会で昭和60年
11月に発表されたもので、下端を自在継手40により
構造物の床に支持されたロッド41の上端に質量ブロッ
ク42を取付けている。そして、ロッド41の中間部に
は水平の直角2方向(X、Y方向)にオイルダンパー4
3とばね44を取付け、各々の他端は構造物の床上に固
定した反力ボスト45に取付けられている。■ The nine vibration damping devices shown in Figure 6 were announced at the Architectural Institute of Japan in November 1985 as installed on a 120 m tower-supported chimney. A mass block 42 is attached to the upper end of a rod 41 supported by the rod 41. An oil damper 4 is installed in the middle of the rod 41 in two horizontal orthogonal directions (X and Y directions).
3 and springs 44, each other end of which is attached to a reaction post 45 fixed on the floor of the structure.
本発明が解決しようとする問題点
(1) 制振装置は建物の揺れに共振する別の振動系で
あり、制振装置が激しく揺れるほど建物の振動エネルギ
を多く吸収して制振効果を奏する。Problems to be solved by the present invention (1) The vibration damping device is another vibration system that resonates with the shaking of the building, and the more violently the vibration damping device shakes, the more vibration energy of the building is absorbed and the damping effect is exerted. .
しかし、従来の上記■の制振装置は、大掛りなメカニカ
ル機構であるためか、構造物が風又は地震等によりかな
り大きく揺れても反応が鈍く、スムーズに振動せず、制
振効果がはかばかしくない。However, because the conventional vibration damping device described in (iii) above is a large-scale mechanical mechanism, even if the structure shakes considerably due to wind or earthquakes, the response is slow, it does not vibrate smoothly, and the damping effect is slow. do not have.
その割にコスト的には高価な装置となっている。However, it is an expensive device in terms of cost.
また、水平のx、Y各方向に1自由度の合計2自由度系
の構成であるため、各方向にIMi類の周期特性しか設
定できない、ところが、一般に建物の振動勢力として大
きい1次、2次の振動エネルギを吸収すると制振効果が
大きいのであり、前記の如<X、Yに各1自由度系の構
成では、1次周期はともかくとして、2次周期の振動エ
ネルギーを吸収する構成とはとうていなし得す、制振効
果が低いという問題点がある。In addition, since the system has a total of two degrees of freedom, one degree of freedom in each of the horizontal x and Y directions, only IMi-type periodic characteristics can be set in each direction. Absorbing the next vibration energy has a large vibration damping effect, and in the above-mentioned configuration with one degree of freedom in each < However, there is a problem in that the damping effect is low.
その上、バネによる周期の微調整も現場では至難の構成
である。しかるに、建物などの固有振動周期は、設=[
段階においである程度高い精度の試算はできるものの、
実際値は建物が出来上ってみないとわからないという不
明瞭さがつきまとい。Furthermore, fine adjustment of the cycle using a spring is extremely difficult in the field. However, the natural vibration period of a building etc. is set = [
Although it is possible to make calculations with a certain degree of accuracy at this stage,
The actual value is not known until the building is completed, so there is a lot of ambiguity.
現場合せの重要性が大きいのに、従来これに対応できな
いという問題点があった。Despite the importance of pre-existing conditions, there has been a problem in the past that it has not been possible to deal with them.
(II) 次に、上記■に述べた制振装置は、構造が
比較的簡単で安価ではあるけれども、やはり水平のX、
Y各方向に1自由度の合計2自由度の構成であり、上記
■の制振装置と同様な問題点がある。(II) Next, although the vibration damping device described in item (2) above has a relatively simple and inexpensive structure, it still
It has a configuration with a total of two degrees of freedom, one degree of freedom in each Y direction, and has the same problem as the vibration damping device (2) above.
その上、この制振装置の場合は、¥tiブロック42の
振動振幅(変位量)をさほど大きくはとれない構成なの
で、吸収可能な振動エネルギ量が小さく、大形構造物に
は適用しがたいという問題点もある。Furthermore, in the case of this vibration damping device, the vibration amplitude (displacement amount) of the ¥ti block 42 cannot be made very large, so the amount of vibration energy that can be absorbed is small, making it difficult to apply to large structures. There is also a problem.
問題点を解決するための手段
(第1の発明)
上記従来技術の問題点を解決するための手段として、こ
の発明に係る建物のfijJ振装殿は1図面の第1図〜
第4図に好適な実施例を示したとおり、建物内に設置し
建物の揺れに共振する別の振動系を構成し建物の振動エ
ネルギを吸収する制振装置において。Means for Solving the Problems (First Invention) As a means for solving the problems of the above-mentioned prior art, the fijj Shinsoden building of the building according to the present invention is shown in Figures 1 to 1 of one drawing.
As shown in a preferred embodiment in FIG. 4, in a vibration damping device that is installed in a building and constitutes another vibration system that resonates with the shaking of the building to absorb the vibration energy of the building.
建物の床1上に所望重量の質量ブロック1を積層ゴム脚
2・・・により水平振動が自在に設置し、該質量ブロッ
ク1と建物の床10との間に減衰vc置3を設置した。A mass block 1 having a desired weight was installed on the floor 1 of a building so that horizontal vibration could be freely caused by laminated rubber legs 2, and a damping VC device 3 was installed between the mass block 1 and the floor 10 of the building.
そして、質量ブロック1の外方位置であって建物の床l
O上に反力ボスト8を取付け、該反力ボスト8と質量ブ
ロック1との間に周期微調整用のばね7を設置して構成
した。and the outer position of the mass block 1 and the floor l of the building.
A reaction force post 8 is mounted on the O, and a spring 7 for period fine adjustment is installed between the reaction force post 8 and the mass block 1.
作 用
所定の剛性とla型的でしなやかな変形性能を発揮する
構成のta層ゴム脚?・・・で支持された質量ブロック
lは、建物の軽度の揺れに対しても速やかに反応して激
しく振動する。したがって、建物の揺れに対する感度が
良く、しかも振動エネルギ吸収の効果、即ち制振効果に
優れる。TA-layer rubber legs with a structure that exhibits a specified rigidity and LA-like flexible deformation performance. The mass block l supported by ... quickly reacts to even mild shaking of the building and vibrates violently. Therefore, it has good sensitivity to the shaking of the building, and has an excellent vibration energy absorption effect, that is, a vibration damping effect.
また、基本的な共振周期特性は積層ゴム脚2の特性(剛
性、変形性能)で設定でき、さらに現場では微調整ばね
7の強さの設定により周期特性の調節をかなり広範囲に
行なえる。即ち、完全に露出している微調整用ばね7の
交換は至極簡単に行なえて施工性が良く、制振効果を十
分に高められる。Further, the basic resonance periodic characteristics can be set by the characteristics (rigidity, deformability) of the laminated rubber legs 2, and furthermore, the periodic characteristics can be adjusted in a fairly wide range by setting the strength of the fine adjustment spring 7 at the site. In other words, the completely exposed fine adjustment spring 7 can be replaced very easily, with good workability, and the damping effect can be sufficiently enhanced.
質量ブロック1の振動による水平運動エネルギは、水平
運動によって生ずる相対変位を利用した粘性流体利用の
減衰装置3で消費させ低減させるのセある。The horizontal kinetic energy due to the vibration of the mass block 1 is consumed and reduced by a damping device 3 using a viscous fluid that utilizes the relative displacement caused by the horizontal motion.
(第2の発明)
同上の問題点を解決するための手段として、この発明に
係る建物の制振装置は、やはり図面の第1図〜第4図に
好適な実施例を示したとおり、上記第1の発明の構成の
全部を主要部とした上で、多層構造に構成した。即ち、
建物内に設置し建物の揺れに共振する別の振動系を構成
し建物の振動エネルギを吸収する制振装置において。(Second invention) As a means for solving the above problem, a vibration damping device for a building according to the present invention is provided as described above, as preferred embodiments are shown in FIGS. 1 to 4 of the drawings. The entire configuration of the first invention is used as the main part, and it is configured in a multilayer structure. That is, in a vibration damping device that is installed inside a building and constitutes another vibration system that resonates with the shaking of the building and absorbs the vibration energy of the building.
建物の床1上に所望重量の質量ブロック1を積層ゴム脚
2・・・により水平振動が自在に設置し、さらに該質量
ブロック1の上にもさらに質量ブロック1を積層ゴム脚
2・・・により水平振動が自在に設置し、以下同様にし
て所要数の質量ブロック1を積み重ねて重層構造とした
。A mass block 1 of a desired weight is installed on the floor 1 of a building by laminated rubber legs 2 . The mass blocks 1 were installed in such a way that horizontal vibration could be freely performed, and the required number of mass blocks 1 were stacked in the same manner to form a multilayer structure.
そして、最下位の質量ブロック1と建物の床10との間
、及び各層の質量ブロック1.1の間に減衰装置3を設
置し、た、また、各質量ブロック1の外方であって建物
の床10上に反力ボスト8を取付け、該反力ボスト8と
各質量ブロックlとの間に周期微調整用のばね7を設置
して構成した。Then, a damping device 3 is installed between the lowest mass block 1 and the floor 10 of the building, and between the mass blocks 1.1 of each layer, and also outside of each mass block 1, A reaction force post 8 was mounted on the floor 10 of the building, and a spring 7 for fine period adjustment was installed between the reaction force post 8 and each mass block l.
なお、上記積層ゴム脚2としては、ゴムシートと鉄板を
互い違いに配置して貼り合せた互層構造のものが実施さ
れる。The laminated rubber legs 2 have an alternate layer structure in which rubber sheets and iron plates are alternately arranged and bonded together.
また、上記減衰装置3としては、一定の平行隙間をあけ
て対峙せしめた水平運動板の一方を建物の床10に、他
方は質量ブロック1に取付け、この水平運動板3b、5
の隙間に粘性流体6を満たした構成のものかに実施され
る。Further, as the damping device 3, one of the horizontal movement plates facing each other with a certain parallel gap is attached to the floor 10 of the building, and the other is attached to the mass block 1, and the horizontal movement plates 3b, 5
This is implemented in a structure in which a gap between the two is filled with a viscous fluid 6.
さらに、最上位の質量ブロック1′は、建物の天井梁1
1との間に減衰装置3を有する構成でも実施される。Furthermore, the uppermost mass block 1' is the ceiling beam 1 of the building.
A configuration having a damping device 3 between the device 1 and the device 1 is also implemented.
作 用
この第2の発明も、上述した第1の発明と同一の作用を
奏するほか2特に多層構造としたので。Function This second invention also has the same function as the first invention described above, and in particular has a multilayer structure.
積層ゴム脚2・・・の構造上周期の長いものを作りにく
い欠点が、層数を増やすことによって改善され周期の制
約が解かれて長い周期の建物にも適用可能である。The structural disadvantage of the laminated rubber legs 2, which makes it difficult to manufacture ones with a long period, can be improved by increasing the number of layers, and the restrictions on the period can be lifted, making it applicable to buildings with a long period.
また、質量ブロック1が2層であると、水工のX、Y各
方向に2自由度で全体では4自由度(層数次第では多自
由度)の振動系を構成したことになる、よって、この4
自由度の振動周期特性を建物のX、Y各方向の1次周期
、2法用期に合致させることにより、一般に建物の振動
勢力として大きい1次、2次の振動振幅をかなり低減で
き、制振効果が大きいのである。Also, if the mass block 1 has two layers, it will constitute a vibration system with two degrees of freedom in each of the X and Y directions of the waterwork, and a total of four degrees of freedom (multiple degrees of freedom depending on the number of layers). , this 4
By matching the vibration period characteristics of the degree of freedom with the first and second period of the building in each of the X and Y directions, the amplitude of the first and second vibrations, which are generally large vibration forces in buildings, can be significantly reduced and controlled. The vibration effect is large.
実 施 例 次に、図面に示した実施例を説明する。Example Next, the embodiment shown in the drawings will be explained.
第1図と第2図に示した制振装置は、いわゆるパッシブ
ダンパー型のもので、原理的に激しく揺れるほど建物の
振動エネルギを多く吸収し制振効果があがるので、通常
は第3図のように建物Aにおいて最も揺れ幅が大きい最
上階に設置し同建物Aの揺れに共振する別の振動系を構
成するものとして使用される。The vibration damping devices shown in Figures 1 and 2 are of the so-called passive damper type.In principle, the more violently the building shakes, the more vibration energy is absorbed by the building, increasing the damping effect. It is installed on the top floor of building A, where the amplitude of shaking is the largest, and is used to constitute another vibration system that resonates with the shaking of building A.
即ち、建物の床10上の4fl所に円柱形状の積層ゴム
脚2・・・を固定して立て、これらにより所望ff!量
の質量ブロックlが水平振動が自在に水平に質量ブロッ
ク1は、建物Aの卓越する振動周期に関する有効質量の
数%以下の質量を有するものとし、その材質は例えばコ
ンクリート製あるいは鋼製容器の中に重量物を詰めた構
成とされている0図示例の質量ブロック1は平面が正方
形状のものとし、その四隅位置が各1木ずつの積層ゴム
脚2・・・で支持されている(第2図)。That is, the cylindrical laminated rubber legs 2 are fixed and erected at 4 fl places on the floor 10 of the building, and the desired ff! The horizontal mass block 1 shall have a mass of several percent or less of the effective mass related to the predominant vibration period of the building A, and its material may be, for example, concrete or steel container. The mass block 1 in the illustrated example, which is configured to have a heavy object packed inside, has a square plane, and its four corners are supported by laminated rubber legs 2 of one piece each ( Figure 2).
積層ゴム脚2は、上部支持板2a及び下部支持板2bと
、その間に複数のゴム弾性板及び金属板を交互に鉛直方
向に積層して貼り合せ(通常は加fE接着)一体化した
部分とで構成されている。上部支持板2aを質量ブロー
2り1の下面にボルトその他の手段で固着し、下部支持
板2bは建物Aの床10にやはりボルトその他の手段で
固着した構成とされている。ゴム弾性板と金属板を交互
に積層した構成なので、質量ブロック1を安全に支持し
、かつ水平方向に所定の剛性と変形性能を発揮するもの
となっている。よって、その設計如何により、建物の基
本的な振動周期特性に合致する特性が容易に得られる。The laminated rubber leg 2 is an integral part of an upper support plate 2a and a lower support plate 2b, and a plurality of rubber elastic plates and metal plates are alternately laminated in the vertical direction and bonded together (usually by FE bonding). It consists of The upper support plate 2a is fixed to the lower surface of the mass blower 21 by bolts or other means, and the lower support plate 2b is fixed to the floor 10 of the building A by bolts or other means. Since it has a structure in which rubber elastic plates and metal plates are alternately laminated, it safely supports the mass block 1 and exhibits a predetermined rigidity and deformability in the horizontal direction. Therefore, depending on the design, characteristics that match the basic vibration period characteristics of the building can be easily obtained.
なお、図示例の積層ゴム脚2の水平断面は円形であるが
、この限りではなく、四角形あるいは多角形等とするこ
とが可使である。Note that although the horizontal cross section of the laminated rubber leg 2 in the illustrated example is circular, it is not limited to this, and may be square, polygonal, or the like.
図中3は上記質量ブロックlと建物の床Aとの間に設置
された粘性流体利用の減衰装置である。3 in the figure is a damping device using viscous fluid installed between the mass block I and the floor A of the building.
質量ブロック1の下面に支持棒3aを垂直下向きに固定
し、その下端に水平運動板の一つである円板形状の可動
抵抗板5が水平に取付けられている。他方、建物Aの床
10上には前記可動抵抗板5と同心円状配置で浅型の容
器3bを固定し、該容器3b内に例えばシリコン油、あ
るいはポリイソブチレン、ポリプロピレン、ポリブテン
などの高分子粘性体、又はアスファルトの如き粘性流体
6が収容されている。前記可動抵抗板5と、これに対峙
する容器3bの底との間に数1程度の水平方向に平行な
隙間を確保し、同隙間を前記粘性流体6で充満せしめて
いる。つまり、容器3bの底がもう一つの水平運動板と
されているのである。A support rod 3a is fixed vertically downward to the lower surface of the mass block 1, and a disk-shaped movable resistance plate 5, which is one of the horizontal movement plates, is horizontally attached to the lower end of the support rod 3a. On the other hand, a shallow container 3b is fixed on the floor 10 of the building A in a concentric arrangement with the movable resistance plate 5, and a viscous polymer such as silicone oil, polyisobutylene, polypropylene, or polybutene is placed in the container 3b. A viscous fluid 6 such as dirt or asphalt is contained therein. Between the movable resistance plate 5 and the bottom of the container 3b facing the movable resistance plate 5, a gap of about 1 in parallel in the horizontal direction is secured, and the gap is filled with the viscous fluid 6. In other words, the bottom of the container 3b is used as another horizontally moving plate.
質量ブロック1が水平振動すると、これに伴って可動抵
抗板5が水平圧動をし、容器3bの底との間に相苅変位
を生ずるので、ひいては粘性流体6に粘性せん断抵抗力
を生ぜしめ振動エネルギを吸収、減衰するのである。When the mass block 1 horizontally vibrates, the movable resistance plate 5 moves horizontally, causing a mutual displacement between it and the bottom of the container 3b, which in turn creates a viscous shearing resistance force in the viscous fluid 6. It absorbs and dampens vibration energy.
なお、可動抵抗板5の下面に、容器3bの底と当接し滑
動するすべり材を取付けて前記間隙の大きさを一定に保
持すること、及びa層ゴム脚2の沈下変形を吸収するス
ライド部を支持JP!53aに設けることにより、前記
粘性流体6の粘性せん断抵抗力を常に一定の大きさに保
持する構成にすると、−層好都合である。It should be noted that a sliding member is attached to the lower surface of the movable resistance plate 5 to keep the size of the gap constant by sliding in contact with the bottom of the container 3b, and a sliding member is provided to absorb the sinking deformation of the a-layer rubber leg 2. Support JP! It is advantageous to provide a structure in which the viscous shear resistance force of the viscous fluid 6 is always maintained at a constant level by providing it in the viscous fluid 6.
次に、前記質量ブロック1の外方の直角4方向の位置で
あって建物Aの床10上に反力ボスト8を固定して立設
し、該反力ボスト8とlニブロック1のばね受はアング
ル9との間に振動周期微調整用のコイルばね7が取付け
られている。該コイルばね7のバネ定数が大きいと質量
ブロック1の振動周期が短かくなり、逆に小さいと長く
なる。Next, a reaction force post 8 is fixed and erected on the floor 10 of the building A at positions in four right angle directions outside the mass block 1, and the reaction force post 8 and the spring of the lniblock 1 are fixed and erected. A coil spring 7 is attached between the receiver and the angle 9 for fine adjustment of the vibration period. When the spring constant of the coil spring 7 is large, the vibration period of the mass block 1 becomes short, and conversely, when the spring constant is small, it becomes long.
つまり、コイルばね7のバネ定数の選択と交換により、
振動周期の微調整ができるのである。あるいは水平X、
Y2方向の振動周期の違いも容易に微調整可能である。In other words, by selecting and replacing the spring constant of the coil spring 7,
This allows fine adjustment of the vibration period. Or horizontal X,
The difference in the vibration period in the Y2 direction can also be easily finely adjusted.
ところで、第1図の制振装置の場合、前記質量ブロック
1の上にも積層ゴム脚2・・・を取付け、これにより第
2の質量ブロック1′を水平振動が自在に水平に支持せ
しめた2段の積層構造に構成されている。そして、第1
段目と第2段目の質量ブロック1.1′間に減衰装′1
13を設置し1反カボスト8とfiffiブロック1′
のばね受はアングル9との間には周期機rA整用のコイ
ルばね7が取付けられている。いわば同じ構成のくり返
しによる積み上げで重量構造に構成されている。したが
って、必要なら建物Aの階高の許す限りの多層構造に構
成することができる。By the way, in the case of the vibration damping device shown in FIG. 1, laminated rubber legs 2 are also attached on top of the mass block 1, and this allows the second mass block 1' to be supported horizontally so that horizontal vibrations can freely occur. It has a two-layer laminated structure. And the first
A damping device'1 is installed between the mass block 1.1' of the first stage and the second stage.
13 installed, 1 anti-kabost 8 and fiffi block 1'
A coil spring 7 for adjusting the periodic machine rA is installed between the spring holder and the angle 9. In other words, it is constructed into a heavy structure by stacking the same structure over and over again. Therefore, if necessary, the building can be configured to have a multi-layered structure as long as the floor height of the building A allows.
しかして、上記のように2段の積層構造とした場合、水
平のX、Y各方向へ2自由度となり1合計4自由度の振
動系を構成したことになる。したがって、質量ブロック
1.1′の1affi、及び積層ゴム脚2の剛性と変形
性能、並びにコイルばね7の強さの3特性の組合せを適
正設計することにより、前記4自由度の振動周期特性を
建物Aの水平X、Y各方向の1次周期、2次周期とほぼ
合致させることが可能である。かくすると、一般に建物
Aの振動勢力として大きい1次、2次の振動振幅をかな
り低減できることになり、制振効果に優れるのである。Therefore, in the case of a two-stage laminated structure as described above, there are two degrees of freedom in each of the horizontal X and Y directions, thus constructing a vibration system with a total of four degrees of freedom. Therefore, by appropriately designing a combination of three characteristics: 1affi of the mass block 1.1', the rigidity and deformation performance of the laminated rubber leg 2, and the strength of the coil spring 7, the vibration periodic characteristics of the four degrees of freedom can be adjusted. It is possible to almost match the primary period and secondary period of building A in each of the horizontal X and Y directions. In this way, the amplitude of the primary and secondary vibrations, which are generally large as the vibration force of the building A, can be considerably reduced, resulting in an excellent vibration damping effect.
もっとも、具体的な振動振幅低減量は、減衰装置3の能
力によって決まる。However, the specific amount of vibration amplitude reduction is determined by the ability of the damping device 3.
第2の実施例
第4図に示した制振装置は、上位の質量ブロック1′と
上階の梁11との間に減衰装置3が設置された構成を特
徴とする。減衰装置3の個数が増えた分だけ、振動振幅
を低減する癒力が大きいものとなる。Second Embodiment The vibration damping device shown in FIG. 4 is characterized by a structure in which a damping device 3 is installed between an upper mass block 1' and a beam 11 on the upper floor. As the number of damping devices 3 increases, the healing force for reducing vibration amplitude increases.
図中4は上階の梁11と減衰装置3とのつなぎを容易に
なさしめる高さ:1g1m部材である。In the figure, 4 is a member with a height of 1 g and 1 m that facilitates the connection between the beam 11 on the upper floor and the damping device 3.
本発明が奏する効果
以上に実施例と併せて詳述したとおりであって、この発
明に係る建物の制振装置は、全体の構成が線型的で動き
がスムーズであるから、建物Aの揺れに敏感に反応して
作動し制振効果に優れる。The effects of the present invention are as described in detail in conjunction with the embodiments, and the building vibration damping device according to the present invention has a linear overall structure and smooth movement, so it can withstand the shaking of building A. It reacts sensitively and operates with excellent vibration damping effect.
また、構造が簡単なので施工及びメンテナンスが容易で
あり、安価である。Furthermore, since the structure is simple, construction and maintenance are easy and inexpensive.
次に、この発明の制振装置の場合、コイルばね7の強さ
調整により振動周期の微調整が容易にでき、現場合せが
楽にできるので、出来上った建物Aの実際の固有振動周
期に合致する特性を確保することが容易であり、固有周
期に対する優れた制振効果を発揮させられる。Next, in the case of the vibration damping device of the present invention, the vibration period can be easily finely adjusted by adjusting the strength of the coil spring 7, and it is easy to make adjustments at present, so that the actual natural vibration period of the completed building A can be easily adjusted. It is easy to ensure matching characteristics, and an excellent vibration damping effect on the natural period can be exhibited.
しかも、多層構造に構成された制振装置は、層数に比例
して多自由度の振動系を構成するので。Moreover, a vibration damping device configured with a multilayer structure constitutes a vibration system with multiple degrees of freedom in proportion to the number of layers.
建物Aの複数の優勢な固有振動周期をねらい打ちして制
振効果を上げることが可1mである。It is possible to increase the vibration damping effect by targeting multiple dominant natural vibration periods of building A.
また、重層構造の制振装置は、小形の積層ゴム脚2の短
所を補償して変形量が大きいものとすることができ、周
期の長い大形構造物にも適用可能なものとなるので、適
用範囲が広い。In addition, the multi-layer vibration damping device can compensate for the disadvantages of the small laminated rubber legs 2 and have a large amount of deformation, and can be applied to large structures with long periods. Wide range of application.
第1図と第2図はこの発明の制振vc置の第1実施例を
示した正面図と■−■矢視断面図、第3図は建物へ適用
した場合の立面図、第4図は第2実施例の正面図、第5
図と第6図は従来の制振装置を示した斜視図である。
第1図
10ふ
第2図
第3図
第5図
第6図Figures 1 and 2 are a front view and a sectional view taken along the arrows -■, showing a first embodiment of the vibration damping VC device of the present invention, Figure 3 is an elevation view when applied to a building, and Figure 4 The figure is a front view of the second embodiment.
This figure and FIG. 6 are perspective views showing a conventional vibration damping device. Figure 1 Figure 10 Figure 2 Figure 3 Figure 5 Figure 6
Claims (1)
を構成し建物の振動エネルギを吸収する制振装置におい
て、 建物の床(10)上に所望重量の質量ブロック(1)を
積層ゴム脚(2)・・・により水平振動が自在に設置し
、該質量ブロック(1)と建物の床(10)との間に減
衰装置(3)が設置されており、質量ブロック(1)の
外方位置であって建物の床(10)上に反力ボスト(8
)を取付け、該反力ボスト(8)と質量ブロック(1)
との間に周期微調整用のばね(7)が設置されているこ
とを特徴とする建物の制振装置。 【2】建物内に設置し建物の揺れに共振する別の振動系
を構成し建物の振動エネルギを吸収する制振装置におい
て、 建物の床(10)上に所望重量の質量ブロック(1)を
積層ゴム脚(2)・・・により水平振動が自在に設置し
、該質量ブロック(1)の上にも質量ブロック(1)を
積層ゴム脚(2)・・・により水平振動が自在に設置し
、以下同様にして所要数の質量ブロック(1)を積み重
ねた重量構造となし、最下位の質量ブロック(1)と建
物の床(10)との間及び各層の質量ブロック(1)(
1)の間に減衰装置(3)が設置されており、各質量ブ
ロック(1)の外方位置であって建物の床(10)上に
反力ボスト(8)を取付け、該反力ボスト(8)と各質
量ブロック(1)との間に周期微調整用のばね(7)が
設置されていることを特徴とする建物の制振装置。 【3】特許請求の範囲第2項に記載した積層ゴム脚(2
)は、ゴムシートと鉄板を互い違いに配置し貼り合せた
互層構造であることを特徴とする建物の制振装置。 【4】特許請求の範囲第2項に記載した減衰装置(3)
は、一定の平行隙間をあけて対峙せしめた水平運動板の
一方(3b)を建物の床(10)に、他方(5)は質量
ブロック(1)に取付けると共に、この水平運動板(3
b)(5)の隙間に粘性流体(6)を満たした構成であ
ることを特徴とする建物の制制振装置。 【5】特許請求の範囲第2項に記載した最上位の質量ブ
ロック(1)は、建物の天井梁(11)との間に減衰装
置(3)を有していることを特徴とする建物の制振装置
。[Scope of Claims] [1] In a vibration damping device that is installed in a building and constitutes another vibration system that resonates with the shaking of the building and absorbs the vibration energy of the building, a desired weight is placed on the floor (10) of the building. A mass block (1) is installed with laminated rubber legs (2) to allow free horizontal vibration, and a damping device (3) is installed between the mass block (1) and the building floor (10). A reaction force post (8) is placed on the floor (10) of the building at a location outside the mass block (1).
), and attach the reaction force post (8) and mass block (1).
A vibration damping device for a building, characterized in that a spring (7) for fine period adjustment is installed between the . [2] In a vibration damping device that is installed in a building and constitutes another vibration system that resonates with the shaking of the building and absorbs the vibration energy of the building, a mass block (1) of a desired weight is placed on the floor (10) of the building. The laminated rubber legs (2)... are installed to freely allow horizontal vibration, and the mass block (1) is also installed on top of the mass block (1) to allow horizontal vibration to be freely caused by the laminated rubber legs (2)... Then, in the same manner, a required number of mass blocks (1) are stacked to form a heavy structure, and the mass blocks (1) (
1), a damping device (3) is installed between the mass blocks (1), and a reaction force post (8) is installed on the floor (10) of the building at an outer position of each mass block (1). A vibration damping device for a building, characterized in that a spring (7) for fine period adjustment is installed between (8) and each mass block (1). [3] Laminated rubber legs (2
) is a building vibration damping device characterized by an alternating layer structure made of rubber sheets and steel plates arranged alternately and bonded together. [4] Attenuation device (3) according to claim 2
One side (3b) of the horizontal movement plates facing each other with a certain parallel gap is attached to the floor (10) of the building, and the other side (5) is attached to the mass block (1).
b) A vibration damping device for a building, characterized in that the gap in (5) is filled with a viscous fluid (6). [5] A building characterized in that the uppermost mass block (1) described in claim 2 has a damping device (3) between it and a ceiling beam (11) of the building. vibration damping device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26004386A JPH073127B2 (en) | 1986-10-31 | 1986-10-31 | Building damping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26004386A JPH073127B2 (en) | 1986-10-31 | 1986-10-31 | Building damping device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63114774A true JPS63114774A (en) | 1988-05-19 |
JPH073127B2 JPH073127B2 (en) | 1995-01-18 |
Family
ID=17342507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26004386A Expired - Lifetime JPH073127B2 (en) | 1986-10-31 | 1986-10-31 | Building damping device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH073127B2 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01105878A (en) * | 1987-10-16 | 1989-04-24 | Bridgestone Corp | Dynamic vibration reducer for building |
JPH0264604U (en) * | 1988-11-05 | 1990-05-15 | ||
JPH02154825A (en) * | 1988-12-02 | 1990-06-14 | Shimizu Corp | Vibration suppressor for structure |
JPH02157369A (en) * | 1988-12-08 | 1990-06-18 | Shimizu Corp | Vibration control device of structure |
JPH0442562U (en) * | 1990-08-09 | 1992-04-10 | ||
JPH04166577A (en) * | 1990-10-30 | 1992-06-12 | Fujita Corp | Vibration controlling building |
JPH04316740A (en) * | 1991-04-17 | 1992-11-09 | Mitsubishi Steel Mfg Co Ltd | Damping device |
JPH04350274A (en) * | 1991-05-29 | 1992-12-04 | Kajima Corp | Vibration controller for structure |
JPH05222863A (en) * | 1992-02-14 | 1993-08-31 | Kajima Corp | Vibration control device of structure |
JPH05248120A (en) * | 1992-03-03 | 1993-09-24 | Kajima Corp | Damping device for structure |
JPH08334148A (en) * | 1995-06-06 | 1996-12-17 | Tokico Ltd | Damping device |
JP2006214527A (en) * | 2005-02-04 | 2006-08-17 | Swcc Showa Device Technology Co Ltd | Damping device |
JP2008014409A (en) * | 2006-07-06 | 2008-01-24 | Shimizu Corp | Vibration absorbing structure |
-
1986
- 1986-10-31 JP JP26004386A patent/JPH073127B2/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01105878A (en) * | 1987-10-16 | 1989-04-24 | Bridgestone Corp | Dynamic vibration reducer for building |
JPH0264604U (en) * | 1988-11-05 | 1990-05-15 | ||
JPH02154825A (en) * | 1988-12-02 | 1990-06-14 | Shimizu Corp | Vibration suppressor for structure |
JPH02157369A (en) * | 1988-12-08 | 1990-06-18 | Shimizu Corp | Vibration control device of structure |
JPH0442562U (en) * | 1990-08-09 | 1992-04-10 | ||
JPH04166577A (en) * | 1990-10-30 | 1992-06-12 | Fujita Corp | Vibration controlling building |
JPH04316740A (en) * | 1991-04-17 | 1992-11-09 | Mitsubishi Steel Mfg Co Ltd | Damping device |
JPH04350274A (en) * | 1991-05-29 | 1992-12-04 | Kajima Corp | Vibration controller for structure |
JPH05222863A (en) * | 1992-02-14 | 1993-08-31 | Kajima Corp | Vibration control device of structure |
JPH05248120A (en) * | 1992-03-03 | 1993-09-24 | Kajima Corp | Damping device for structure |
JPH08334148A (en) * | 1995-06-06 | 1996-12-17 | Tokico Ltd | Damping device |
JP2006214527A (en) * | 2005-02-04 | 2006-08-17 | Swcc Showa Device Technology Co Ltd | Damping device |
JP2008014409A (en) * | 2006-07-06 | 2008-01-24 | Shimizu Corp | Vibration absorbing structure |
Also Published As
Publication number | Publication date |
---|---|
JPH073127B2 (en) | 1995-01-18 |
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