JP3200789B2 - Anti-vibration structure - Google Patents
Anti-vibration structureInfo
- Publication number
- JP3200789B2 JP3200789B2 JP04003594A JP4003594A JP3200789B2 JP 3200789 B2 JP3200789 B2 JP 3200789B2 JP 04003594 A JP04003594 A JP 04003594A JP 4003594 A JP4003594 A JP 4003594A JP 3200789 B2 JP3200789 B2 JP 3200789B2
- Authority
- JP
- Japan
- Prior art keywords
- building
- vibration
- lower floor
- buildings
- upper 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.)
- Expired - Fee Related
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、地震、風、鉄道、高速
道路といった外的要因に対して建物が振動することを防
止できる振動防止構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration structure capable of preventing a building from vibrating due to external factors such as earthquake, wind, railway, and highway.
【0002】[0002]
【従来の技術】従来より免振装置、制振装置を備えた建
物が多く建設され、地震等により建物が振動することを
防止している。具体的には、免振装置として、建物の底
部と地盤との間に積層ゴム、振動減衰装置などを設ける
構成が採用され、また、制振装置として、建物の上部位
置に一定量の水を貯留したタンク、水平方向に移動自在
な重錘を設け、振動に合わせて水、重錘を共振させるこ
とにより、該建物の動きを止める構成が採用されてい
る。2. Description of the Related Art Conventionally, many buildings equipped with a vibration isolator and a vibration damper have been constructed to prevent the building from vibrating due to an earthquake or the like. Specifically, a configuration in which a laminated rubber, a vibration damping device, or the like is provided between the bottom of the building and the ground is adopted as a vibration isolation device, and a certain amount of water is provided at a position above the building as a vibration damping device. A configuration is adopted in which a stored tank and a horizontally movable weight are provided, and the movement of the building is stopped by resonating the water and the weight in accordance with the vibration.
【0003】[0003]
【発明が解決しようとする課題】ところで、上記のよう
な免振装置、制振装置は、一般に建物毎に個々に設けら
れるものであり、よってその設置には多大なコストがか
かるという問題があり、この点において新たな技術の提
供が期待されていた。However, the above-mentioned vibration isolator and vibration damper are generally provided individually for each building, so that there is a problem that the installation thereof is very costly. In this regard, the provision of new technology was expected.
【0004】この発明は上記の事情に鑑みてなされたも
のであって、2つの建物を1つの単位として、これら建
物全体が振動、転倒することを防止し、これによって制
振のためのコストを低減させることが可能な振動防止構
造の提供を目的とする。[0004] The present invention has been made in view of the above circumstances, and as a unit of two buildings, it is possible to prevent the whole of the buildings from vibrating and tipping over, thereby reducing the cost for vibration suppression. It is an object of the present invention to provide a vibration prevention structure that can be reduced.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明では、近接位置に設けられた一対の建物の振動
を防止する振動防止構造であって、これら建物のいずれ
か一方を上層階部と下層階部とに分離し、これら上層階
部と下層階部との間に免振装置を設けるとともに、該建
物の下層階部と他方の建物との間を水平な連結梁により
連結し、前記連結梁を軸剛性の大きい梁により構成した
ことを特徴とする。According to the present invention, there is provided an anti-vibration structure for preventing vibration of a pair of buildings provided in proximity to each other, wherein one of the buildings is located on an upper floor. And a lower floor, a vibration isolator is provided between the upper floor and the lower floor, and the lower floor of the building and the other building are connected by a horizontal connecting beam. The connecting beam is constituted by a beam having a large axial rigidity .
【0006】[0006]
【0007】[0007]
【作用】本発明は、近接位置に設けられた2つの建物の
いずれか一方を上層階部と下層階部とに分離し、これら
上層階部と下層階部との間に免振装置を設けるととも
に、該建物の下層階部と他方の建物との間を水平な連結
梁により連結した構成であるので、例えば地震が発生し
た場合であっても、連結梁により互いの建物が転倒する
ことを防止できるとともに、免振装置を介して設けられ
た一方の建物の上層階部が、地震の振動に応じて共振す
るチューンド・マス・ダンパーとして働くことにより、
該建物の下層階部、及び連結梁で連結された他方の建物
の振動を抑制することができる。According to the present invention, one of the two buildings provided in the proximity position is separated into an upper floor and a lower floor, and a vibration isolator is provided between the upper floor and the lower floor. In addition, since the lower floor of the building and the other building are connected by a horizontal connecting beam, for example, even if an earthquake occurs, the buildings may be overturned by the connecting beam. In addition to being able to prevent it, the upper floor of one building provided via a vibration isolation device acts as a tuned mass damper that resonates in response to earthquake vibration,
Vibrations of the lower floor of the building and the other building connected by the connecting beams can be suppressed.
【0008】特に、本発明では、一方の建物の下層階部
と他方の建物との間の連結梁として、軸剛性の大きい梁
を使用したので、地震等が発生して、免振装置を介して
設けられた一方の建物の上層階部が、地震の振動に応じ
て共振するチューンド・マス・ダンパーとして機能した
場合に、地震の振動を打ち消す力が該連結梁を介して他
方の建物に有効に伝達される。In particular, according to the present invention , since a beam having a large axial rigidity is used as a connecting beam between the lower floor of one building and the other building, an earthquake or the like occurs, and the beam passes through the vibration isolation device. If the upper floor of one building provided as a tuned mass damper that resonates in response to earthquake vibration, the force to cancel the earthquake vibration is effective for the other building via the connecting beam. Is transmitted to
【0009】[0009]
【実施例】以下、本発明の一実施例を図1に基づいて説
明する。この図において符号1・2で示すものは互いに
近接する位置に設けられた建物であって、これらの中
で、建物1は先に建設済の既設建屋、建物2は建物1よ
り後に建設された新設建屋である。新設建屋2は上層階
部3と下層階部4とに分離されたものであって、上層階
部3は下層階部4の上面に免振装置5を介して設けら
れ、また、下層階部4の側部と既設建屋1の側部とは複
数の連結梁6により連結されている。An embodiment of the present invention will be described below with reference to FIG. In this figure, reference numerals 1 and 2 denote buildings provided at positions close to each other. Among these, building 1 is an existing building that has already been constructed, and building 2 has been constructed after building 1. It is a new building. The new building 2 is separated into an upper floor portion 3 and a lower floor portion 4. The upper floor portion 3 is provided on the upper surface of the lower floor portion 4 via a vibration isolation device 5. 4 and the side of the existing building 1 are connected by a plurality of connecting beams 6.
【0010】なお、新設建屋2において、上層階部3の
重量は全体重量の15%程度に設定することが好まし
い。例えば、各階毎の重量が同じであると過程すれば、
新設建屋2が20階建の建物であるときには上層階部3
は3階程度とし、新設建屋2が40階建の建物であると
きには上層階部3は6階程度とすると良い。また、この
ような上層階部3の階数設定は全体の設計内容に応じて
適宜変更することは言うまでも無い。また、免振装置5
は、上層階部3を支える積層ゴム7と油圧シリンダ等の
減衰装置8とにより構成されるものであって、これら積
層ゴム7、減衰装置8によって下層階部4の振動が上層
階部3に伝達されることを防止している。また、連結梁
6は、新設建屋2の下層階部4と既設建屋1との間に水
平に設けられたものであって、軸方向に対して剛性の高
い材料により形成されている。In the new building 2, the weight of the upper floor 3 is preferably set to about 15% of the total weight. For example, if it is assumed that the weight of each floor is the same,
When the new building 2 is a 20-story building, the upper floor 3
Is about 3 floors, and when the new building 2 is a 40-story building, the upper floor section 3 is preferably about 6 floors. Needless to say, the setting of the number of floors of the upper floor portion 3 is appropriately changed according to the entire design contents. Also, the vibration isolation device 5
Is composed of a laminated rubber 7 that supports the upper floor 3 and a damping device 8 such as a hydraulic cylinder. The vibration of the lower floor 4 is transmitted to the upper floor 3 by the laminated rubber 7 and the damping device 8. It is prevented from being transmitted. The connecting beam 6 is provided horizontally between the lower floor 4 of the new building 2 and the existing building 1, and is made of a material having high rigidity in the axial direction.
【0011】そして、以上のように構成された振動防止
構造では、既設建屋1の近接位置に、上層階部3と下層
階部4とに分離した新設建屋2を設け、新設建屋2の上
層階部3と下層階部4との間に免振装置5を設けるとと
もに、該新設建屋2の下層階部4の側部と、既設建屋1
との間を水平な連結梁6により連結したものであるの
で、例えば、地震が発生した場合であっても、連結梁6
により互いの建物が転倒することを防止できるととも
に、免振装置5を介して設けられた新設建屋2の上層階
部3が、地震の振動に応じて共振するチューンド・マス
・ダンパーとして働くことにより、該建物の下層階部
4、及び連結梁6で連結された既設建屋1の振動を抑制
することができる。すなわち、本実施例の振動防止構造
では、免振装置5及び連結梁6により2つの既設建屋
1、新設建屋2を共に制振、転倒防止可能な構成である
ので、個々の建物について制振対策を施していた従来の
振動防止構造と比較してコストの点でも有利であるとい
う効果が得られる。In the vibration prevention structure configured as described above, a new building 2 separated into an upper floor 3 and a lower floor 4 is provided in the vicinity of the existing building 1, and the upper floor of the new building 2 is provided. A vibration isolator 5 is provided between the floor 3 and the lower floor 4, and a side of the lower floor 4 of the new building 2 and the existing building 1.
Are connected by a horizontal connecting beam 6, so that, for example, even if an earthquake occurs, the connecting beam 6
And the upper floor 3 of the new building 2 provided via the vibration isolation device 5 functions as a tuned mass damper that resonates in response to earthquake vibration. The vibration of the existing building 1 connected by the lower floor portion 4 of the building and the connecting beam 6 can be suppressed. That is, in the vibration prevention structure of the present embodiment, both the existing building 1 and the new building 2 can be damped and fall-prevented by the vibration isolator 5 and the connecting beam 6, so that the vibration damping countermeasures are taken for each building. This is advantageous in that it is advantageous in terms of cost as compared with the conventional vibration preventing structure which has been subjected to the above.
【0012】また、上記振動防止構造では、新設建屋2
の下層階部4と、既設建屋1との間を軸剛性の大きい水
平な連結梁6により連結したので、地震等が発生して、
免振装置5を介して設けられた新設建屋2の上層階部3
が、地震の振動に応じて共振するチューンド・マス・ダ
ンパーとして機能した場合に、地震の振動を打ち消す水
平方向の力が、該連結梁6を介して既設建屋1にも有効
に伝達され、これにより建物全体を有効に制振させるこ
とが可能となる。また、上記振動防止構造では、2つの
建物の中で、新設建屋2に連結される既設建屋1は既存
の建物を利用するものであり、これによって既設建物1
を新設建屋2とともに制振構造とすることが可能とな
り、個々の建物に制振対策を施した場合と比較して制振
対策にかかる費用の削減が可能となる。Further, in the above-mentioned vibration preventing structure, the new building 2
Because the lower floor 4 and the existing building 1 were connected by the horizontal connecting beam 6 having high axial rigidity, an earthquake etc. occurred,
Upper floor 3 of new building 2 provided via vibration isolator 5
However, when functioning as a tuned mass damper that resonates in response to earthquake vibration, the horizontal force for canceling the earthquake vibration is effectively transmitted to the existing building 1 via the connecting beam 6, Thus, the entire building can be effectively damped. Further, in the above-described vibration prevention structure, the existing building 1 connected to the new building 2 in the two buildings uses an existing building, and thus the existing building 1 is used.
Can be made a vibration damping structure together with the new building 2, and the cost for the vibration damping measures can be reduced as compared with the case where the vibration damping measures are applied to individual buildings.
【0013】なお、上記実施例では、先に建設されてい
る既設建屋1に新設建屋2を連結させたものであるが、
更に、新設建屋2を建設する場合、この新設建屋2を既
設建屋1に対して更に連結させても良い。すなわち、既
設建屋1を囲むように複数の新設建屋2を建設しても良
い。In the above embodiment, the new building 2 is connected to the existing building 1 which has been constructed earlier.
Further, when constructing the new building 2, the new building 2 may be further connected to the existing building 1. That is, a plurality of new buildings 2 may be constructed so as to surround the existing building 1.
【0014】[0014]
【発明の効果】以上の説明から明らかなように本発明に
よれば、地震等が発生した場合であっても、連結梁によ
り互いの建物が転倒することを防止できるとともに、免
振装置を介して設けられた一方の建物の上層階部が、地
震の振動に応じて共振するチューンド・マス・ダンパー
として働くことにより、該建物の下層階部及び、連結梁
で連結された他方の建物の振動を抑制することができ
る。すなわち、本発明の振動防止構造では、免振装置及
び連結梁により2つの建物を共に制振、転倒防止可能な
構成であるので、従来と比較してコストの点でも有利で
あるという効果が得られる。As is apparent from the above description, according to the present invention, even when an earthquake or the like occurs, it is possible to prevent the buildings from falling over by the connecting beams, and to use the vibration isolation device. The upper floor of one of the buildings provided works as a tuned mass damper that resonates in response to the vibration of the earthquake, thereby lowering the vibration of the lower floor of the building and the other building connected by connecting beams. Can be suppressed. That is, in the vibration prevention structure of the present invention, the two buildings can be both damped and prevented from overturning by the vibration isolator and the connecting beam. Can be
【0015】特に、本発明では、一方の建物の下層階部
と他方の建物との間の連結梁として、軸剛性の大きい梁
を使用したので、地震等が発生して、免振装置を介して
設けられた一方の建物の上層階部が、地震の振動に応じ
て共振するチューンド・マス・ダンパーとして機能した
場合に、地震の振動を打ち消す力が該連結梁を介して他
方の建物に有効に伝達される。In particular, in the present invention , since a beam having a large axial rigidity is used as a connecting beam between the lower floor of one building and the other building, an earthquake or the like occurs and the beam is transmitted through the vibration isolator. If the upper floor of one building provided as a tuned mass damper that resonates in response to earthquake vibration, the force to cancel the earthquake vibration is effective for the other building via the connecting beam. Is transmitted to
【図1】本発明の一実施例を示す概略構成図。FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention.
1 既設建屋(他方の建物) 2 新設建屋(一方の建物) 3 上層階部 4 下層階部 5 免振装置 6 連結梁 1 Existing building (the other building) 2 New building (one building) 3 Upper floor 4 Lower floor 5 Isolation device 6 Connecting beam
Claims (1)
を防止する振動防止構造であって、 これら建物のいずれか一方を上層階部と下層階部とに分
離し、これら上層階部と下層階部との間に免振装置を設
けるとともに、該建物の下層階部と他方の建物との間を
水平な連結梁により連結し、 前記連結梁は軸剛性の大きい梁により構成される ことを
特徴とする振動防止構造。An anti-vibration structure for preventing vibration of a pair of buildings provided at a close position, wherein one of these buildings is separated into an upper floor and a lower floor, and the upper floor and the lower floor are separated from each other. A vibration isolation device is provided between the lower floor and the lower floor of the building and the other building are connected by a horizontal connecting beam, and the connecting beam is formed of a beam having a large axial rigidity. A vibration prevention structure characterized by the following.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04003594A JP3200789B2 (en) | 1994-03-10 | 1994-03-10 | Anti-vibration structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04003594A JP3200789B2 (en) | 1994-03-10 | 1994-03-10 | Anti-vibration structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07252967A JPH07252967A (en) | 1995-10-03 |
JP3200789B2 true JP3200789B2 (en) | 2001-08-20 |
Family
ID=12569662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP04003594A Expired - Fee Related JP3200789B2 (en) | 1994-03-10 | 1994-03-10 | Anti-vibration structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3200789B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2988470B2 (en) * | 1998-05-29 | 1999-12-13 | 鹿島建設株式会社 | Reinforcement structure of existing structure and reinforcement structure |
JP5116603B2 (en) * | 2008-08-05 | 2013-01-09 | 株式会社竹中工務店 | Vibration control method for demolished buildings |
JP5523071B2 (en) * | 2009-12-01 | 2014-06-18 | トヨタホーム株式会社 | Damping structure of buildings |
JP6379608B2 (en) * | 2014-04-09 | 2018-08-29 | 株式会社大林組 | Damping building and building damping method |
JP6505272B2 (en) * | 2018-02-07 | 2019-04-24 | 株式会社竹中工務店 | Intermediate seismic isolation structure |
JP7400173B2 (en) * | 2019-11-22 | 2023-12-19 | 株式会社竹中工務店 | Structure connection structure and structure design method |
-
1994
- 1994-03-10 JP JP04003594A patent/JP3200789B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07252967A (en) | 1995-10-03 |
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