JPH0243427A - Rigidity adjustable frame - Google Patents

Rigidity adjustable frame

Info

Publication number
JPH0243427A
JPH0243427A JP19298788A JP19298788A JPH0243427A JP H0243427 A JPH0243427 A JP H0243427A JP 19298788 A JP19298788 A JP 19298788A JP 19298788 A JP19298788 A JP 19298788A JP H0243427 A JPH0243427 A JP H0243427A
Authority
JP
Japan
Prior art keywords
rigidity
frame
variable
actuators
closing
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
Application number
JP19298788A
Other languages
Japanese (ja)
Other versions
JPH0639802B2 (en
Inventor
Shozo Maeda
祥三 前田
Takuji Kobori
小堀 鐸二
Masami Iizuka
飯塚 真巨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP19298788A priority Critical patent/JPH0639802B2/en
Publication of JPH0243427A publication Critical patent/JPH0243427A/en
Publication of JPH0639802B2 publication Critical patent/JPH0639802B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Load-Bearing And Curtain Walls (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

PURPOSE:To adjust rigidity of a structure in accordance with an earthquake motion by connecting a rigidity adjustable device consisting of two valves attached on the outer peripheral surface of a cylinder and actuators for controlling opening or closing of the valves to plural braces erected in one direction. CONSTITUTION:A piston rod 1 is connected to a brace and fixed on one side of a frame (f), and a cylinder 2 fixed to the other side of the frame is fully filled with oil 5. Further, actuators 31, 32 for controlling opening or closing of two valves 41, 42 attached on the outer peripheral surface of the cylinder are provided. The operations of the valves 41, 42 operated by means of the actuators 31, 32 control rigidity by a command from a computer judging predominant period of the earthquake motion sensored by an earthquake sensing device such as a vibration sensor, etc., and thereby selecting an optimum rigidity of a structure for voiding resonance with the earthquake motion. Rigidity can thus be optionally and stepwise changed, and proper period of the structure can also be adjusted in accordance with inputted earthquake motion.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明はブレースや耐震壁に剛性可変装置を接続して
剛性を可変にし、制置構造化された、可変剛性フレーム
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a variable rigidity frame which has a restraining structure by connecting a variable rigidity device to a brace or a seismic wall to vary the rigidity.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

高層建築物を制置構造化する方法には従来、振動エネル
ギーを熱エネルギーに変換する、または塑性変形能力を
保有させる等により吸収する方法があるが、こうしたエ
ネルギー吸収方法とは別に出願人は、ブレース等の架構
、すなわちフレームに対する接続状態を制御することに
よりフレームの剛性、そして建物自身の固有振動数を変
えて各種の振動数で入力する地震動に対処する方法を種
々提案している。
Conventionally, there are methods for constructing high-rise buildings into restraint structures, such as converting vibration energy into thermal energy or absorbing it by having plastic deformation ability, but apart from these energy absorption methods, the applicant has Various methods have been proposed to deal with seismic motion input at various frequencies by controlling the connection state of braces and other structures to the frame, thereby changing the rigidity of the frame and the natural frequency of the building itself.

この発明はこうした一連の剛性可変の一手段としてなさ
れたもので、剛性が段階的に可変状態となるフレームを
新たに提案しようとするものである。
This invention has been made as a means for a series of such changes in rigidity, and aims to propose a new frame whose rigidity can be varied in stages.

〔課題を解決するための手段〕[Means to solve the problem]

本発明では一方向に複数本架設されるブレースそれぞれ
とフレームとに、もしくはフレームと耐震壁間に水平に
架設される複数本の連結ビームそれぞれと耐震壁、また
はフレームとに、ピストンロッドの固定状態が弁の開閉
操作で切り替えられる剛性可変装置を接続し、複数個の
剛性可変装置を個々に制御することによってフレームの
剛性を段階的に可変とし、構造物の固有周期を変化させ
る。
In the present invention, a piston rod is fixed to each of a plurality of braces installed in one direction and a frame, or to each of a plurality of connecting beams installed horizontally between a frame and a seismic wall, or to a frame. By connecting a variable stiffness device that can be switched by opening and closing a valve, and controlling the multiple variable stiffness devices individually, the stiffness of the frame can be varied in stages, changing the natural period of the structure.

剛性可変装置はブレースとフレームのいずれか一方、も
しくは連結ビームと耐震壁、またはフレームのいずれか
一方に固定されるピストンロッドと、他方に固定され、
オイルが充満される管路が二重構造となったシリンダと
、二重構造を仕切る隔壁のピストンロッド側とシリンダ
ヘッド側に位置する弁の開閉を制御する2個のアクチュ
エータとから構成されるもので、アクチュエータによる
弁の開閉によって剛性可変装置が接続されるそれぞれの
ブレースの、もしくは耐震壁の剛性が変えられ、フレー
ムの剛性が段階的に可変となる。
The variable stiffness device is fixed to one of the brace and the frame, or the connecting beam and the shear wall, or the piston rod fixed to one of the frames, and the other fixed to the piston rod,
It consists of a cylinder with a double structure of pipes filled with oil, and two actuators that control the opening and closing of valves located on the piston rod side and the cylinder head side of the partition wall that partitions the double structure. By opening and closing the valves by the actuator, the stiffness of each brace or shear wall to which the variable stiffness device is connected is changed, and the stiffness of the frame is varied in stages.

〔実 施 例〕〔Example〕

以下本発明を一実施例を示す図面に基づいて説明する。 The present invention will be explained below based on the drawings showing one embodiment.

まず第1請求項記載の発明を説明する。First, the invention described in claim 1 will be explained.

この発明の可変剛性フレームFは第1図に示すように一
方向に複数本のブレースBが架設されたフレームfの剛
性が各ブレースBに接続される剛性可変装置Aによって
段階的に可変とされたものである。
As shown in FIG. 1, the variable rigidity frame F of the present invention has a frame f in which a plurality of braces B are installed in one direction, and the rigidity of the frame f is varied in stages by a rigidity variable device A connected to each brace B. It is something that

剛性可変装置Aは第3図に示すようにブレースBとフレ
ームrのいずれか一方に固定されるピストンロッド1と
、他方に固定される、オイル5が充満されたシリンダ2
と、シリンダ2の外周面に取り付けられる2個のアクチ
ュエータ3□3.とからなり、ブレースBとフレーム1
間に双方の相対移動方向、すなわちブレースBの軸方向
に接続され、2個のアクチュエータ3.。
As shown in FIG. 3, the rigidity variable device A includes a piston rod 1 fixed to either one of a brace B or a frame r, and a cylinder 2 filled with oil 5 fixed to the other.
and two actuators 3□3. attached to the outer peripheral surface of the cylinder 2. consists of brace B and frame 1.
Between the two actuators 3. .

3zでシリンダ2に取り付く弁4r、4tの開閉を操作
することによりピストンロッド1の伸縮を制御し、ブレ
ースB、そしてフレームfの剛性を調整するものである
By opening and closing valves 4r and 4t attached to the cylinder 2 at 3z, the expansion and contraction of the piston rod 1 is controlled, and the rigidity of the brace B and frame f is adjusted.

シリンダ2は図示するようにピストン6が往復動するシ
リンダ室2aとその回りの隔壁2bを挾んでシリンダ室
2aを取り囲むオイル供給室2cとから二重管構造とな
っており、隔壁2bにはピストン6のピストンロッド側
とシリンダヘッド側のそれぞれに弁4.,4□が取り付
いている。
As shown in the figure, the cylinder 2 has a double pipe structure consisting of a cylinder chamber 2a in which a piston 6 reciprocates, and an oil supply chamber 2c that surrounds the cylinder chamber 2a by sandwiching a partition wall 2b around the cylinder chamber 2a. Valve 4 is installed on each of the piston rod side and cylinder head side of 6. , 4□ are attached.

この弁4+、4zにそれぞれの開閉を操作するアクチュ
エータ31,3□が接続されており、このアクチュエー
タ31.3□により両弁41.4□の開閉を切り替える
ことによってシリンダ室2aのピストン6を挟んだ両側
の圧力が変えられ、各ブレースBの剛性が調整される。
Actuators 31 and 3□ are connected to these valves 4+ and 4z, and actuators 31.3□ open and close the valves 41.4□, thereby sandwiching the piston 6 in the cylinder chamber 2a. However, the pressure on both sides is changed, and the stiffness of each brace B is adjusted.

すなわちピストンロッド1側の弁4.を開け、シリンダ
ヘッド側の弁4□を閉じればピストン6が入る方向に固
定された状態となり、ピストンロッド1は収縮できず、
ブレースBの圧縮に対する剛性が高められる。このとき
ピストンロッド1は僅かに伸長可能で、ブレースBの引
張に対する剛性は相対的に低下する。
That is, the valve 4 on the piston rod 1 side. If you open the valve 4□ on the cylinder head side, the piston 6 will be fixed in the direction in which it enters, and the piston rod 1 will not be able to contract.
The compression stiffness of brace B is increased. At this time, the piston rod 1 can be slightly extended, and the tensile rigidity of the brace B is relatively reduced.

一方ピストンロッド1側の弁41を閉じ、シリンダヘッ
ド側の弁4□を開ければピストン6は出る方向に固定さ
れた状態となり、ブレースBの引張に対する剛性が上が
る。
On the other hand, if the valve 41 on the piston rod 1 side is closed and the valve 4□ on the cylinder head side is opened, the piston 6 is fixed in the exit direction, increasing the rigidity of the brace B against tension.

また両方の弁4+、4z共開ければブレースBは圧縮、
引張のいずれに対してもフレームfに対して相対移動可
能となる。
Also, if both valves 4+ and 4z are opened, brace B will be compressed.
It becomes possible to move relative to the frame f for any tension.

以上のアクチュエータ31.3□による弁4.。Valve 4 by the above actuator 31.3□. .

4□の操作は、振動センサー等の地震感知装置で恩知さ
れた地震動の卓越周期を判断し、それに基づいて地震動
との共振を回避するために構造物の最適剛性を選択する
コンピュータの指令により制御される。
The operation in 4□ is based on a computer command that determines the dominant period of seismic motion detected by an earthquake sensing device such as a vibration sensor, and then selects the optimal rigidity of the structure to avoid resonance with the seismic motion. controlled.

この各ブレースBの剛性を制御するアクチュエータ3I
、3□の操作によって本可変剛性フレームFはブレース
Bの架設本数に応じて段階的に剛性が変えられる仕組に
なっている。
Actuator 3I that controls the rigidity of each brace B
, 3□, the rigidity of the variable rigidity frame F can be changed in stages according to the number of braces B installed.

すなわち本発明の、一方向に0本のブレースBが架設さ
れた可変剛性フレームFは第4図に示すように、各ブレ
ースBに接続される剛性可変装aAの油圧に相当する剛
性Knのばねと、それを0N10FFで制御する弁4I
、4gの開閉状態を表わすダンパーDnとを直列に接続
した振動系をn個並列させたn自由度の振動系にモデル
化されるが、ここに示すように3本のブレースBを架設
した可変剛性フレームFでは表−1に示すように剛性O
1すなわち全剛性可変装置Aの両弁4I、4□共開けた
状態を含めて8段階に可変設定できる。
That is, as shown in FIG. 4, the variable rigidity frame F in which zero braces B are installed in one direction according to the present invention has springs with a rigidity Kn corresponding to the hydraulic pressure of the variable rigidity device aA connected to each brace B. and valve 4I that controls it with 0N10FF.
It is modeled as a vibration system with n degrees of freedom in which n vibration systems are connected in series with a damper Dn representing the open/closed state of 4g, but as shown here, a variable vibration system with three braces B installed is modeled. In the rigid frame F, the rigidity O is as shown in Table-1.
1, that is, a state in which both valves 4I and 4□ of the total rigidity variable device A are both open, can be variably set in eight stages.

表−1 次に第2請求項記載の発明を説明する。Table-1 Next, the invention described in the second claim will be explained.

この発明の可変剛性フレームFは第2図に示すようにフ
レームfの上階梁とそれから切り離される耐震壁Wとの
間に水平に架設される複数本の連結ビームCそれぞれと
耐震壁W、またはフレーム「に第1請求項発明における
剛性可変装置Aを接続し、そのアクチュエータ33,3
□の操作により耐震壁W、すなわちフレームfの剛性が
連結ビームCの本数に応じて段階的に可変とされたもの
である。
As shown in FIG. 2, the variable rigidity frame F of the present invention has a plurality of connecting beams C horizontally installed between the upper floor beam of the frame F and a shear wall W separated therefrom, and a shear wall W, or The rigidity variable device A in the first claim invention is connected to the frame, and the actuators 33, 3 are connected to the frame.
By the operation □, the rigidity of the shear wall W, that is, the frame f, is made variable in stages according to the number of connecting beams C.

この発明では剛性可変装置Aは連結ビームCの軸方向、
つまり水平方向に接続され、耐震壁Wとフレームfの相
対水平移動状態を制御する。
In this invention, the rigidity variable device A is arranged in the axial direction of the connecting beam C;
That is, they are connected in the horizontal direction and control the relative horizontal movement of the earthquake wall W and the frame f.

剛性可変装置Aの操作方法及び可変剛性フレームFのメ
カニズムは第1請求項発明において説明した通りであり
、この発明では剛性可変装置Aの個数分だけフレームf
の剛性が可変設定可能となる。
The operating method of the variable stiffness device A and the mechanism of the variable stiffness frame F are as explained in the first claim, and in this invention, the number of frames f equal to the number of variable stiffness devices A is
The rigidity of can be set variably.

〔発明の効果〕〔Effect of the invention〕

この発明は以上の通りであり、複数本のブレースの剛性
を個々に制御する、または耐震壁の剛性を複数本の連結
ビームによって多段階に制御する剛性可変装置を複数個
接続したものであるため剛性が段階的に、任意に変えら
れ、構造物の剛性、すなわち固有周期を入力する地震動
に応じて適当に調整することができる。
This invention is as described above, and is a system in which a plurality of rigidity variable devices are connected to individually control the rigidity of a plurality of braces or to control the rigidity of a shear wall in multiple stages using a plurality of connecting beams. The stiffness can be changed stepwise and arbitrarily, and the stiffness of the structure, that is, the natural period, can be adjusted appropriately according to the input seismic motion.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図、第2図はそれぞれ第1請求項発明、第2請求項
発明の実施例を示した立面図、第3図は剛性可変装置を
示した断面図、第4図は本発明の動作機構を示したモデ
ル図である。 F・・・・・・可変1m 性フレーム、r・・・・・・
フレーム、B・・・・・・ブレース、A・・・・・・剛
性可変装置、1・・・・・・ピストンロッド、2・・・
・・・シリンダ、2a・・・・・・シリンダ室、2b・
・・・・・隔壁、2c・・・・・・オイル供給室、31
.3□・・・・・・アクチュエータ、41,4□・・・
・・・弁、5・・・・・・オイル、6・・・・・・ピス
トン、W・・・・・・耐震壁、C・・・・・・連結ビー
ム。 第 第 図 図 第 図
1 and 2 are elevational views showing embodiments of the first and second claimed inventions, respectively, FIG. 3 is a sectional view showing a variable rigidity device, and FIG. It is a model diagram showing an operating mechanism. F......variable 1m sex frame, r...
Frame, B...Brace, A...Rigidity variable device, 1...Piston rod, 2...
...Cylinder, 2a...Cylinder chamber, 2b.
・・・・・・Bulkhead, 2c・・・Oil supply chamber, 31
.. 3□・・・Actuator, 41,4□・・・
...Valve, 5...Oil, 6...Piston, W...Shear wall, C...Connection beam. Figure Figure Figure

Claims (2)

【特許請求の範囲】[Claims] (1)ピストンロッドと、ピストンが往復動するシリン
ダ室とこれを隔壁を挟んで取り囲むオイル供給室とから
二重管構造に形成され、オイルが充満されたシリンダと
、シリンダの外周面に取り付けられ、隔壁のピストンロ
ッド側とシリンダヘッド側とに位置する弁の開閉を制御
する2個のアクチュエータとからなり、シリンダ室のピ
ストンロッド側とシリンダヘッド側の圧力が2個のアク
チュエータによるそれぞれの弁の開閉操作で制御される
剛性可変装置を、一方向に複数本架設されるブレースそ
れぞれとフレームとに双方の相対移動方向に接続して構
成され、アクチュエータによる各弁の開閉操作で各ブレ
ースの剛性が可変状態とされていることを特徴とする可
変剛性フレーム。
(1) It is formed into a double pipe structure consisting of a piston rod, a cylinder chamber in which the piston moves back and forth, and an oil supply chamber surrounding this with a partition wall in between. , consists of two actuators that control the opening and closing of valves located on the piston rod side and cylinder head side of the partition wall, and the pressure on the piston rod side and cylinder head side of the cylinder chamber is controlled by the two actuators. A rigidity variable device controlled by opening/closing operations is connected to each of the multiple braces installed in one direction and the frame in the direction of relative movement between the two, and the rigidity of each brace can be adjusted by opening/closing each valve using an actuator. A variable rigidity frame characterized by being in a variable state.
(2)上階梁とこれから切り離される耐震壁との間に水
平に架設される複数本の連結ビームそれぞれと耐震壁、
またはフレームとに、双方の相対移動方向に第1請求項
記載中の剛性可変装置を接続して構成され、剛性可変装
置のアクチュエータによる各弁の開閉操作で耐震壁の剛
性が段階的に可変状態とされていることを特徴とする可
変剛性フレーム。
(2) Each of the multiple connecting beams and the shear wall installed horizontally between the upper floor beam and the shear wall separated from the upper floor beam,
Alternatively, the rigidity variable device according to the first claim is connected to the frame in the relative movement direction of both, and the stiffness of the shear wall is changed in stages by opening and closing each valve by the actuator of the rigidity variable device. A variable rigidity frame characterized by:
JP19298788A 1988-08-02 1988-08-02 Variable stiffness frame Expired - Lifetime JPH0639802B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19298788A JPH0639802B2 (en) 1988-08-02 1988-08-02 Variable stiffness frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19298788A JPH0639802B2 (en) 1988-08-02 1988-08-02 Variable stiffness frame

Publications (2)

Publication Number Publication Date
JPH0243427A true JPH0243427A (en) 1990-02-14
JPH0639802B2 JPH0639802B2 (en) 1994-05-25

Family

ID=16300346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19298788A Expired - Lifetime JPH0639802B2 (en) 1988-08-02 1988-08-02 Variable stiffness frame

Country Status (1)

Country Link
JP (1) JPH0639802B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285275A (en) * 1991-03-14 1992-10-09 Mitsubishi Heavy Ind Ltd Variable history type vibration damping system
US5743699A (en) * 1995-12-19 1998-04-28 Fujitsu Limited Apparatus and method for transferring wafers
JP2017190619A (en) * 2016-04-14 2017-10-19 株式会社グレイプ Frame body and building

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285275A (en) * 1991-03-14 1992-10-09 Mitsubishi Heavy Ind Ltd Variable history type vibration damping system
JP2882888B2 (en) * 1991-03-14 1999-04-12 三菱重工業株式会社 Variable history damping system
US5743699A (en) * 1995-12-19 1998-04-28 Fujitsu Limited Apparatus and method for transferring wafers
JP2017190619A (en) * 2016-04-14 2017-10-19 株式会社グレイプ Frame body and building

Also Published As

Publication number Publication date
JPH0639802B2 (en) 1994-05-25

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