JP2013096437A

JP2013096437A - Vibration control apparatus

Info

Publication number: JP2013096437A
Application number: JP2011237072A
Authority: JP
Inventors: Fuminobu Ozaki; 文宣尾崎; Yoshimichi Kawai; 良道河合; Ryoichi Sugano; 良一菅野
Original assignee: Nippon Steel and Sumitomo Metal Corp
Current assignee: Nippon Steel Corp
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2013-05-20
Anticipated expiration: 2031-10-28
Also published as: JP5765187B2

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control apparatus in which, even if a damper steel plate connecting a pair of target members is broken, relative displacement of the pair of target members can be regulated.SOLUTION: In a vibration control apparatus B, a pair of target members 5, 6 are connected and an energy absorption performance is presented in accordance with relative displacement between the pair of target members 5, 6. The vibration control apparatus B comprises: damper steel plates 13, 14 which are connected to one target member 5 and another target member 6, respectively, and plastically deformed with the relative displacement between the pair of target members 5, 6 to present an energy absorption performance; and a stopper mechanism 15 (35) which is provided while being connected to the other target member 6 and regulates the relative displacement of the one target member 5 with respect to the other target member 6 by abutting steel plate fragments 40 of the damper steel plates 13, 14 fixed to the one target member 6 when the damper steel plates 13, 14 are broken by the relative displacement between the pair of target members 5, 6.

Description

本発明は、一対の対象部材間を連結し、これら対象部材間の相対変位に応じたエネルギー吸収性能を発揮する制震装置に関する。 The present invention relates to a vibration control device that connects a pair of target members and exhibits energy absorption performance according to the relative displacement between the target members.

近年、防災意識の向上に伴い、振動エネルギーを制震装置（制震ダンパー）によって吸収して減衰させ、地震時の揺れを抑えるようにした住宅やマンション等の建物が増えている。また、この種の制震装置として、例えば、鋼材が圧縮・引張時に降伏し、塑性化する履歴にて、振動エネルギーを吸収する鋼材ダンパーが、低コストで大きなエネルギー吸収性能（制震性能）を発揮できることから多用されている。 In recent years, with the improvement of disaster prevention awareness, buildings such as houses and condominiums that absorb and attenuate vibration energy with a vibration control device (damping damper) to suppress shaking during an earthquake are increasing. In addition, as this type of seismic control device, for example, a steel damper that absorbs vibration energy in the history of steel yielding and plasticizing when it is compressed and tensioned has high energy absorption performance (damping performance) at low cost. It is often used because it can be used.

さらに、図８に示すように耐力壁１の下端側に脚部２として設置したり、ブレースに組み込むなどして用いられる制震装置Ａには、例えば図９及び図１０に示すように、断面コ字状のダンパー用鋼板３、４の両側部のフランジ部３ａ、４ａを溝形鋼などの一方の対象部材５に固着し、他方の対象部材６に連結するアンカーボルト７にナット８、９で接続した形鋼材（連結部材）１０にダンパー用鋼板３、４のダンパー部３ｂ、４ｂを固着して、一方の対象部材５と他方の対象部材６をダンパー用鋼板３、４、形鋼材１０、アンカーボルト７を介して連結するように構成したものがある（例えば、特許文献１参照）。 Furthermore, as shown in FIG. 9 and FIG. 10, for example, as shown in FIG. 9 and FIG. 10, the cross section of the vibration control device A used as a leg 2 at the lower end side of the bearing wall 1 or incorporated in a brace is used. The flanges 3a and 4a on both sides of the U-shaped damper steel plates 3 and 4 are fixed to one target member 5 such as a grooved steel, and the nuts 8 and 9 are connected to the anchor bolt 7 connected to the other target member 6. The damper portions 3b and 4b of the damper steel plates 3 and 4 are fixed to the shape steel material (connecting member) 10 connected in the above, and the one target member 5 and the other target member 6 are connected to the damper steel plates 3 and 4 and the shape steel material 10. There is one configured to be connected via an anchor bolt 7 (see, for example, Patent Document 1).

そして、このように構成した制震装置Ａにおいては、図１１（ａ）〜（ｃ）に示すように、地震時に建物に振動エネルギーが作用して一方の対象部材５と他方の対象部材６の間に相対変位が生じるとともに、ダンパー用鋼板３、４が塑性変形して曲げ降伏することによって、振動エネルギーを吸収し減衰させることができる。 And in the damping device A comprised in this way, as shown to Fig.11 (a)-(c), a vibration energy acts on a building at the time of an earthquake, and one object member 5 and the other object member 6 are the same. Relative displacement occurs between them, and the damper steel plates 3 and 4 are plastically deformed and yielded by bending, whereby vibration energy can be absorbed and attenuated.

特開２００８−１１１３３２号公報JP 2008-111332 A

しかしながら、上記従来の制震装置Ａにおいては、図１１（ｄ）に示すように、大地震時など、一方の対象部材５と他方の対象部材６とが大きく相対変位すると、ダンパー用鋼板３、４が塑性化することで大きな変形が発生する。このため、ダンパー用鋼板３、４には大きな塑性変形能力が必要であった。この一方で、フェイルセーフの観点からダンパー用鋼板３、４が万が一に破断した場合も想定すると、一方の対象部材５の溝形鋼と他方の対象部材６に繋がるアンカーボルト７とが分離して、溝形鋼５からアンカーボルト７が引き抜けてしまう可能性が否定できない。 However, in the conventional vibration control device A, as shown in FIG. 11 (d), when one target member 5 and the other target member 6 are relatively displaced in a large earthquake or the like, the damper steel plate 3, Large deformation occurs when 4 becomes plastic. For this reason, the steel plates 3 and 4 for dampers required large plastic deformation ability. On the other hand, assuming that the damper steel plates 3 and 4 are torn in the unlikely event from the viewpoint of failsafe, the groove steel of one target member 5 and the anchor bolt 7 connected to the other target member 6 are separated. The possibility that the anchor bolt 7 is pulled out from the channel steel 5 cannot be denied.

そして、例えば図８に示したように、従来の制震装置Ａを耐力壁１の下端側に脚部２として設置して用いた場合に、ダンパー用鋼板３、４が万が一に破断した場合を想定すると、溝形鋼５からアンカーボルト７が引き抜けて、耐力壁１が横転する可能性が否定できなかった。このため、ダンパー用鋼板３、４が想定外に破断した場合においても、耐力壁１、すなわち上部構造を転倒させないフェイルセーフ技術が必要であった。 And, for example, as shown in FIG. 8, when the conventional damping device A is installed and used as the leg portion 2 on the lower end side of the bearing wall 1, the damper steel plates 3 and 4 are broken by any chance. Assuming that the anchor bolt 7 was pulled out from the channel steel 5 and the bearing wall 1 could roll over could not be denied. For this reason, even when the steel plates 3 and 4 for dampers break unexpectedly, a fail-safe technique that does not overturn the bearing wall 1, that is, the upper structure, is necessary.

本発明は、上記事情に鑑み、一対の対象部材間を連結するダンパー用鋼板が破断した場合であっても、一対の対象部材の相対変位を規制することを可能にした制震装置を提供することを目的とする。 In view of the above circumstances, the present invention provides a vibration control device that can regulate the relative displacement of a pair of target members even when a damper steel plate that connects the pair of target members is broken. For the purpose.

上記の目的を達するために、この発明は以下の手段を提供している。 In order to achieve the above object, the present invention provides the following means.

本発明の制震装置は、一対の対象部材間を連結し、前記一対の対象部材間の相対変位に応じたエネルギー吸収性能を発揮する制震装置であって、一方の対象部材と他方の対象部材にそれぞれ接続し、前記一対の対象部材間に相対変位が生じるとともに塑性変形してエネルギー吸収性能を発揮するダンパー用鋼板と、前記他方の対象部材に接続して設けられ、前記一対の対象部材間の相対変位によって前記ダンパー用鋼板に破断が生じた際に、前記一方の対象部材に固着した前記ダンパー用鋼板の鋼板残片が当接して、前記他方の対象部材に対する前記一方の対象部材の相対変位を規制するストッパー機構とを備えていることを特徴とする。 The vibration control device of the present invention is a vibration control device that connects a pair of target members and exhibits energy absorption performance according to relative displacement between the pair of target members, and includes one target member and the other target A pair of target members, each of which is connected to a member and provided with a steel plate for a damper that exhibits a relative displacement between the pair of target members and plastically deforms to exhibit energy absorption performance; and the other target member. When the damper steel plate breaks due to relative displacement between the steel plates, the remaining steel plate of the damper steel plate fixed to the one target member comes into contact with the other target member relative to the one target member. And a stopper mechanism for restricting displacement.

この発明においては、大地震時など、一方の対象部材と他方の対象部材とが大きく相対変位し、万が一にダンパー用鋼板に破断が生じた場合に、一方の対象部材に固着したダンパー用鋼板の鋼板残片が当接することにより、ストッパー機構によって他方の対象部材に対する一方の対象部材の相対変位を規制することができる。 In this invention, in the event of a large earthquake, when one target member and the other target member are greatly displaced relative to each other, and the damper steel plate breaks, the damper steel plate fixed to one target member When the steel plate residue comes into contact, the stopper mechanism can regulate the relative displacement of the one target member with respect to the other target member.

また、本発明の制震装置においては、複数のスリット孔が形成され、前記相対変位に応じて塑性変形する略平板状のダンパー部と、前記ダンパー部の両側部にそれぞれ設けられたフランジ部とを備えて前記ダンパー用鋼板が断面略コ字状に形成されており、前記ダンパー用鋼板は、前記フランジ部を前記一方の対象部材に接続し、前記他方の対象部材に繋がるアンカーボルトに連結部材を介して前記ダンパー部を接続して配設され、前記ストッパー機構は、前記ダンパー用鋼板の端部との間に所定の間隔をあけ、且つ前記ダンパー用鋼板の端部と前記相対変位の方向に重なるように、前記アンカーボルトに接続して配設されるストッパー部材を備えていることが望ましい。 Further, in the vibration damping device of the present invention, a plurality of slit holes are formed, a substantially flat damper portion that is plastically deformed according to the relative displacement, and flange portions provided on both sides of the damper portion, The damper steel plate is formed in a substantially U-shaped cross section, and the damper steel plate is connected to an anchor bolt that connects the flange portion to the one target member and is connected to the other target member. The damper portion is connected to the end of the damper steel plate, and the stopper mechanism is spaced apart from the end of the damper steel plate, and the direction of the relative displacement with the end of the damper steel plate. It is desirable to provide a stopper member that is connected to the anchor bolt so as to overlap with the anchor bolt.

この発明においては、ストッパー機構のストッパー部材がダンパー用鋼板の端部との間に所定の間隔をあけて配設されていることにより、地震時に建物に振動エネルギーが作用して一方の対象部材と他方の対象部材の間に相対変位が生じるとともに、ダンパー用鋼板を塑性変形させ、振動エネルギーを吸収し減衰させることができる。 In this invention, the stopper member of the stopper mechanism is disposed at a predetermined interval from the end of the steel plate for damper, so that vibration energy acts on the building during an earthquake and While a relative displacement occurs between the other target members, the damper steel plate can be plastically deformed to absorb and attenuate vibration energy.

一方、ストッパー機構のストッパー部材がダンパー用鋼板の端部と前記相対変位の方向に重なるように配設されているため、一方の対象部材と他方の対象部材とが大きく相対変位し、万が一にダンパー用鋼板に破断が生じた場合に、一方の対象部材に固着したダンパー用鋼板の鋼板残片の端部を確実にストッパー部材に当接させることができる。これにより、確実にストッパー機構によって他方の対象部材に対する一方の対象部材の相対変位を規制することが可能になる。 On the other hand, the stopper member of the stopper mechanism is disposed so as to overlap the end of the damper steel plate in the direction of the relative displacement, so that one target member and the other target member are greatly displaced relative to each other. When the steel plate is broken, the end portion of the steel plate residue of the damper steel plate fixed to the one target member can be reliably brought into contact with the stopper member. Thereby, it becomes possible to restrict | limit the relative displacement of one target member with respect to the other target member reliably by a stopper mechanism.

さらに、本発明の制震装置においては、前記ダンパー用鋼板の前記ダンパー部及び前記フランジ部の端部と前記相対変位の方向に重なるように、前記ストッパー部材が配設されていることがより望ましい。 Furthermore, in the vibration damping device of the present invention, it is more desirable that the stopper member is disposed so as to overlap the end of the damper portion and the flange portion of the damper steel plate in the direction of relative displacement. .

この発明においては、一方の対象部材と他方の対象部材とが大きく相対変位し、万が一にダンパー用鋼板に破断が生じた場合に、ダンパー用鋼板（鋼板残片）のダンパー部とフランジ部の端部全体をストッパー部材に当接させることができ、ストッパー部材とダンパー用鋼板の鋼板残片との接触面積を大きく確保することができる。これにより、ストッパー部材とダンパー用鋼板の鋼板残片の当接時の作用応力を小さくすることができ、より確実にストッパー機構によって他方の対象部材に対する一方の対象部材の相対変位を規制することが可能になる。 In the present invention, when one target member and the other target member are relatively displaced relative to each other, and the rupture of the damper steel plate occurs, the damper steel plate (steel plate residue) damper portion and the end of the flange portion The entirety can be brought into contact with the stopper member, and a large contact area between the stopper member and the steel plate residue of the damper steel plate can be secured. As a result, the acting stress at the time of contact between the stopper member and the steel plate remainder of the damper steel plate can be reduced, and the relative displacement of one target member relative to the other target member can be more reliably regulated by the stopper mechanism. become.

また、本発明の制震装置においては、前記ストッパー部材が前記ダンパー用鋼板の少なくとも前記フランジ部の端部と前記相対変位の方向に重なるように配設されるとともに、前記ダンパー部の両側部に設けられた各フランジ部が、前記相対変位の方向に直交する断面視で１つ以上の角部を備えて形成されていることがさらに望ましい。 Further, in the vibration damping device of the present invention, the stopper member is disposed so as to overlap at least the end of the flange portion of the damper steel plate in the direction of the relative displacement, and on both side portions of the damper portion. More preferably, each provided flange is provided with one or more corners in a cross-sectional view orthogonal to the direction of relative displacement.

この発明においては、ダンパー部の両側部に設けられた各フランジ部を１つ以上の角部を備えて屈曲形成することによって、ストッパー部材とダンパー用鋼板の鋼板残片（フランジ部）との接触面積を大きく確保することができる。これにより、ストッパー部材とダンパー用鋼板の鋼板残片の当接時の作用応力をより小さくすることができ、さらに確実にストッパー機構によって他方の対象部材に対する一方の対象部材の相対変位を規制することが可能になる。 In this invention, the contact area between the stopper member and the steel plate remainder (flange portion) of the steel plate for damper is formed by bending each flange portion provided on both sides of the damper portion with one or more corners. Can be secured greatly. As a result, the acting stress at the time of contact between the stopper member and the steel plate residue of the damper steel plate can be further reduced, and the relative displacement of one target member with respect to the other target member can be more reliably regulated by the stopper mechanism. It becomes possible.

本発明の制震装置においては、大地震時など、一方の対象部材と他方の対象部材とが大きく相対変位し、万が一にダンパー用鋼板に破断が生じた場合に、一方の対象部材に固着したダンパー用鋼板の鋼板残片が当接することにより、ストッパー機構によって他方の対象部材に対する一方の対象部材の相対変位を規制することができる。 In the seismic control device of the present invention, when one target member and the other target member are greatly displaced relative to each other, such as during a large earthquake, the damper steel plate is fixed to one target member by any chance. When the steel plate residue of the steel plate for damper contacts, the relative displacement of one target member with respect to the other target member can be regulated by the stopper mechanism.

これにより、フェイルセーフの観点からダンパー用鋼板が万が一に破断した場合を想定したとしても、ストッパー機構を備えていることによって、例えば一方の対象部材の溝形鋼と他方の対象部材に接続したアンカーボルトとが分離して溝形鋼からアンカーボルトが引き抜けてしまうことを確実に防止できる。よって、ダンパー用鋼板が想定外に破断した場合においても、フェイルセーフの観点から確実に耐力壁などの上部構造の転倒を防止できる制震装置を提供することが可能になる。 Thus, even if it is assumed that the damper steel plate breaks from the viewpoint of fail-safe, by providing a stopper mechanism, for example, the anchor connected to the channel steel of one target member and the other target member It is possible to reliably prevent the bolt from separating and the anchor bolt from being pulled out from the channel steel. Therefore, even when the damper steel plate breaks unexpectedly, it is possible to provide a vibration control device that can reliably prevent the upper structure such as the load bearing wall from falling from the viewpoint of fail-safe.

本発明の一実施形態に係る制震装置を示す斜視図である。It is a perspective view which shows the damping device which concerns on one Embodiment of this invention. 図１のＸ１−Ｘ１線矢視図であり、本発明の一実施形態に係る制震装置を示す断面図である。FIG. 2 is a cross-sectional view taken along line X1-X1 of FIG. 本発明の一実施形態に係る制震装置の製作工程を示す斜視図である。It is a perspective view which shows the manufacturing process of the damping device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る制震装置のダンパー用鋼板を示す斜視図である。It is a perspective view which shows the steel plate for dampers of the damping device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る制震装置の変更例を示す断面図である。It is sectional drawing which shows the example of a change of the damping device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る制震装置の地震時の挙動を示す図である。」It is a figure which shows the behavior at the time of the earthquake of the damping device which concerns on one Embodiment of this invention. " 本発明の一実施形態に係る制震装置の性能試験結果を示す図である。It is a figure which shows the performance test result of the damping device which concerns on one Embodiment of this invention. 耐力壁の下端側に脚部として制震装置を設置した建物の一例を示す図である。It is a figure which shows an example of the building which installed the damping device as a leg part in the lower end side of a bearing wall. 従来の制震装置を示す斜視図である。It is a perspective view which shows the conventional damping device. 図９のＸ１−Ｘ１線矢視図であり、従来の制震装置を示す断面図である。FIG. 10 is a sectional view taken along line X1-X1 in FIG. 9 and shows a conventional vibration control device. 従来の制震装置の地震時の挙動を示す図である。It is a figure which shows the behavior at the time of the earthquake of the conventional damping device.

以下、図１から図８を参照し、本発明の一実施形態に係る制震装置について説明する。 Hereinafter, with reference to FIG. 1 to FIG. 8, a vibration control device according to an embodiment of the present invention will be described.

はじめに、本実施形態は、例えば図８に示したように、耐力壁１の下端側に脚部２として設置し、地震時に建物に作用した振動エネルギーを吸収して減衰させる制震装置Ｂに関し、特に地震時に耐力壁１に浮き上がりが生じた場合であっても、フェイルセーフの観点から確実に耐力壁１（上部構造）の転倒を防止できる制震装置Ｂに関するものである。 First, as shown in FIG. 8, for example, the present embodiment relates to a vibration control device B that is installed as a leg portion 2 on the lower end side of the load bearing wall 1 and absorbs and attenuates vibration energy applied to the building during an earthquake. In particular, the present invention relates to a vibration control device B that can reliably prevent the load-bearing wall 1 (upper structure) from falling over from the viewpoint of fail-safe even when the load-bearing wall 1 is lifted during an earthquake.

本実施形態の制震装置（制震ダンパー）Ｂは、図１から図３に示すように、一対の断面略コ字状の形鋼材（連結部材）１１、１２と、一対の断面略コ字状のダンパー用鋼板１３、１４と、アンカーボルト７と、アンカーボルト７に取り付けられるストッパー機構１５とを備えて構成されている。 As shown in FIG. 1 to FIG. 3, the vibration damping device (seismic damper) B of the present embodiment has a pair of substantially steel U-shaped sections (connecting members) 11 and 12 and a pair of substantially U-shaped cross sections. Shaped damper steel plates 13, 14, anchor bolts 7, and stopper mechanisms 15 attached to the anchor bolts 7.

一対の形鋼材１１、１２はそれぞれ、図２及び図３に示すように、平板状の連結板部１１ａ、１２ａと、連結板部１１ａ、１２ａの両側端からそれぞれ、連結板部１１ａ、１２ａに直交して突設された一対の平板状の突出板部１１ｂ、１２ｂと、一方の突出板部１１ｂ、１２ｂの先端から一方の突出板部１１ｂ、１２ｂに直交する方向の外側に延設された平板状の延出板部１１ｃ、１２ｃとを備えて略断面コ字状に形成されている。なお、各形鋼材１１、１２の連結板部１１ａ、１２ａの幅方向Ｔ１中央に、形鋼材１１、１２の延設方向（上下方向Ｔ２）に沿ってスロット溶接用の溝孔１６が形成されている。 As shown in FIG. 2 and FIG. 3, the pair of structural steel members 11 and 12 are respectively connected to the connecting plate portions 11 a and 12 a from the flat connecting plate portions 11 a and 12 a and both side ends of the connecting plate portions 11 a and 12 a. A pair of flat plate-like projecting plate portions 11b and 12b projecting perpendicularly and extending from the tip of one projecting plate portion 11b and 12b to the outside in a direction perpendicular to the one projecting plate portion 11b and 12b. The plate-like extending plate portions 11c and 12c are provided and formed in a substantially U-shaped cross section. In addition, the slot 16 for slot welding is formed in the width direction T1 center of the connection plate part 11a of each shape steel material 11 and 12 along the extending direction (vertical direction T2) of the shape steel materials 11 and 12. Yes.

そして、これら一対の形鋼材１１、１２は、一方の形鋼材１１の一方の突出板部１１ｂの内面に、他方の形鋼材１２の他方の突出板部１２ｂの外面を近接させ、他方の形鋼材１２の一方の突出板部１２ｂの内面に、一方の形鋼材１１の他方の突出板部１１ｂの外面を近接させ、互いの一方の突出板部１１ｂ（１２ｂ）と他方の突出板部１２ｂ（１１ｂ）が対向するようにして配設される。これにより、各形鋼材１１、１２の延出板部１１ｃ、１２ｃが外側に突出した形で配設されるとともに、一対の形鋼材１１、１２のそれぞれの連結板部１１ａ、１２ａと両突出板部１１ｂ、１２ｂで囲まれた内部空間Ｈが形成される。なお、このように配設した一対の形鋼材１１、１２を一体に溶接し、鋼管が形成される。 And a pair of these shape steel materials 11 and 12 makes the outer surface of the other protrusion plate part 12b of the other shape steel material 12 approach the inner surface of one protrusion plate part 11b of the other shape steel material 11, and the other shape steel material. The outer surface of the other protruding plate portion 11b of the one shaped steel member 11 is brought close to the inner surface of one protruding plate portion 12b of the twelve protruding plate portion 11b (12b) and the other protruding plate portion 12b (11b). ) Are arranged so as to face each other. As a result, the extended plate portions 11c and 12c of each of the structural steel materials 11 and 12 are disposed so as to protrude outward, and the connecting plate portions 11a and 12a of each of the pair of structural steel materials 11 and 12 and both protruding plates. An internal space H surrounded by the portions 11b and 12b is formed. In addition, a pair of shape steel materials 11 and 12 arrange | positioned in this way are welded integrally, and a steel pipe is formed.

一方、図１から図４に示すように、本実施形態の一対のダンパー用鋼板１３、１４はそれぞれ、矩形平板状のダンパー部（ウェブ）１３ａ、１４ａと、ダンパー部１３ａ、１４ａの短手方向である幅方向Ｔ１両側部からそれぞれダンパー部１３ａ、１４ａに直交して突設された一対のフランジ部１３ｂ、１４ｂとを備えて断面略コ字状に形成されている。 On the other hand, as shown in FIGS. 1 to 4, the pair of damper steel plates 13 and 14 according to the present embodiment are rectangular plate-like damper parts (webs) 13 a and 14 a and damper parts 13 a and 14 a in the short direction, respectively. And a pair of flange portions 13b and 14b projecting perpendicularly to the damper portions 13a and 14a from both sides in the width direction T1, respectively, and having a substantially U-shaped cross section.

また、ダンパー部１３ａ、１４ａには、複数のスリット孔１７、１８、１９、２０が貫通形成されている。より具体的に、ダンパー部１３ａ、１４ａの長手方向である上下方向Ｔ２両端部２１、２２側の最上方と最下方に配された２つのスリット孔１７、１８は、幅方向Ｔ１の一側端部側から他側端部側に延びる一つの孔として形成されている。また、これら２つのスリット孔１７、１８は、幅方向Ｔ１略中央部分が上下方向Ｔ２の上端部２１あるいは下端部２２に向けて先細るように形成され、且つダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａが塑性変形するための可動域を十分に確保できるように上下方向Ｔ２の寸法（高さ寸法）を設定して形成されている。 In addition, a plurality of slit holes 17, 18, 19, and 20 are formed through the damper portions 13a and 14a. More specifically, the two slit holes 17 and 18 arranged on the uppermost side and the lowermost side on both ends 21 and 22 in the vertical direction T2 which is the longitudinal direction of the damper parts 13a and 14a are one side ends of the width direction T1. It is formed as one hole extending from the part side to the other end part side. Further, the two slit holes 17 and 18 are formed such that the substantially central portion in the width direction T1 is tapered toward the upper end portion 21 or the lower end portion 22 in the vertical direction T2, and the damper portions of the damper steel plates 13 and 14 are formed. The dimension (height dimension) in the vertical direction T2 is set so that a movable range for plastic deformation of 13a and 14a can be sufficiently secured.

また、最上方と最下方の２つのスリット孔１７、１８の上下方向Ｔ２の間には、菱形状の複数のスリット孔１９、２０が貫通形成されている。これら菱形状のスリット孔１９、２０は、多段多列で配設されている。すなわち、本実施形態では、これら菱形状のスリット孔１９、２０が、幅方向Ｔ１中央に所定の間隔をあけて両側部側にそれぞれ配設され、上下方向Ｔ２にも所定の間隔をあけて配設されている。なお、このスリット孔１９、２０は必ずしも菱形に限定する必要はなく、幅方向Ｔ１に向けて縦長の長方形としたり、その他の多角形状、不定形状であってもよい。また、これらのスリット孔１９、２０は、幅方向Ｔ１に所定の間隔をあけて２個（２列）で穿設されているものとして図示したが、幅方向Ｔ１への穿設個数は２個のみに限らず、３個以上としてもよい。 Further, a plurality of rhombus-shaped slit holes 19 and 20 are formed between the upper and lower slit holes 17 and 18 in the vertical direction T2. These diamond-shaped slit holes 19 and 20 are arranged in multiple stages and multiple rows. In other words, in the present embodiment, these diamond-shaped slit holes 19 and 20 are respectively arranged on both sides with a predetermined interval in the center of the width direction T1, and are also arranged with a predetermined interval in the vertical direction T2. It is installed. The slit holes 19 and 20 are not necessarily limited to the diamond shape, and may be a vertically long rectangle in the width direction T1, or other polygonal shape or indefinite shape. In addition, although these slit holes 19 and 20 are illustrated as being drilled in two (two rows) at a predetermined interval in the width direction T1, the number of holes in the width direction T1 is two. It is good also not only as 3 but 3 or more.

そして、最上方と最下方の２つのスリット孔１７、１８の上下方向Ｔ２の間に、菱形状の複数のスリット孔１９、２０を穿設することによって、上下方向Ｔ２に隣接する一対のスリット孔（１７と１９及び２０、１９と１９、２０と２０、１９及び２０と１８）の間にダンパー片２３が形成される。このダンパー片２３は、各スリット孔１９、２０が菱形で形成されているため、スリット孔１９、２０の幅方向Ｔ１中央部分の高さ寸法が幅方向Ｔ１両側部側の高さ寸法よりも小さくなるように形成されている。また、幅方向Ｔ１両側部側にそれぞれ配されて隣り合うダンパー片２３同士は、幅方向Ｔ１中央に形成された略菱形の連結部２４によって連結され、上下方向Ｔ２に隣り合う連結部２４同士も幅方向Ｔ１略中央で一体に連結されている。 A pair of slit holes 19 and 20 having a rhombus shape are formed between the uppermost and lowermost two slit holes 17 and 18 in the vertical direction T2, thereby making a pair of slit holes adjacent to the vertical direction T2. A damper piece 23 is formed between (17 and 19 and 20, 19 and 19, 20 and 20, 19 and 20 and 18). Since each slit hole 19 and 20 is formed in a diamond shape in the damper piece 23, the height dimension of the center portion in the width direction T1 of the slit holes 19 and 20 is smaller than the height dimension on both sides of the width direction T1. It is formed to become. Further, the adjacent damper pieces 23 arranged on both sides of the width direction T1 are connected by a substantially rhombus-shaped connecting portion 24 formed at the center of the width direction T1, and the connecting portions 24 adjacent in the vertical direction T2 are also connected. It is integrally connected at the approximate center in the width direction T1.

また、図４に示すように、本実施形態のダンパー部１３ａ、１４ａにおいて、最上方のスリット孔１７の上端部２１側と最下方のスリット孔１８の下端部２２側の幅方向Ｔ１に連設した部分が架設部２５とされ、複数のスリット孔１７〜２０よりも幅方向Ｔ１一側部側と他側部側の上下方向Ｔ２に連設した部分が枠縁部２６とされている。また、最上方のスリット孔１７と最下方のスリット孔１８の上下方向Ｔ２の間で、幅方向Ｔ１に隣り合う菱形状のスリット孔１９、２０の間の上下方向に連設した部分が接続部２７とされている。さらに、幅方向Ｔ１に隣り合うダンパー片２３とその間の略菱形の連結部２４を合わせた幅方向Ｔ１の連設部分がダンパー機能部２８とされている。 Further, as shown in FIG. 4, in the damper portions 13a and 14a of the present embodiment, the upper end portion 21 side of the uppermost slit hole 17 and the lower end portion 22 side of the lowermost slit hole 18 are continuously provided in the width direction T1. The part that has been formed is the erection part 25, and the part that is connected in the vertical direction T <b> 2 in the width direction T <b> 1 side and the other side part of the slit holes 17 to 20 is the frame edge part 26. Further, between the upper and lower slits 17 and 18 between the upper and lower slits T2 and T2, the portion connected in the vertical direction between the diamond-shaped slits 19 and 20 adjacent in the width direction T1 is a connecting portion. 27. Furthermore, a continuous portion in the width direction T1 including the damper pieces 23 adjacent to each other in the width direction T1 and the substantially rhombic connecting portion 24 therebetween is defined as a damper function portion 28.

さらに、本実施形態のダンパー用鋼板１３、１４は、各フランジ部１３ｂ、１４ｂに、上下方向Ｔ２に所定の間隔をあけて複数の雌ネジ穴２９が貫通形成されている。また、本実施形態では、このフランジ部１３ｂ、１４ｂが、幅方向Ｔ１の断面視（上下方向（相対変位の方向）Ｔ２に直交する断面視）で１つ以上の角部（本実施形態では１つの角部３０）を備えて屈曲形成されている。なお、図５に示すように、例えば２つの角部３０、３１を備えてフランジ部１３ｂ、１４ｂを形成してもよく、特に角部の数を限定する必要はない。そして、本実施形態のダンパー用鋼板１３、１４は、ダンパー部１３ａ、１４ａにフランジ部１３ｂ、１４ｂを取り付けて形成されているのではなく、図３に示すように、例えば、矩形平板状の鋼板３２を用意し、レーザー加工によって所定位置にスリット孔１７〜２０を形成し、折り曲げ加工によってフランジ部１３ｂ、１４ｂを形成して製作される。 Further, in the damper steel plates 13 and 14 of the present embodiment, a plurality of female screw holes 29 are formed through the flange portions 13b and 14b at predetermined intervals in the vertical direction T2. In the present embodiment, the flange portions 13b and 14b have one or more corner portions (1 in the present embodiment) in a cross-sectional view in the width direction T1 (a cross-sectional view orthogonal to the vertical direction (direction of relative displacement) T2). One corner 30) is bent and formed. As shown in FIG. 5, for example, the two corner portions 30 and 31 may be provided to form the flange portions 13 b and 14 b, and it is not necessary to limit the number of corner portions. And the steel plates 13 and 14 for dampers of this embodiment are not formed by attaching the flange parts 13b and 14b to the damper parts 13a and 14a, but, for example, as shown in FIG. 32 is prepared, slit holes 17 to 20 are formed at predetermined positions by laser processing, and flange portions 13b and 14b are formed by bending processing.

このように形成されたダンパー用鋼板１３、１４は、図２から図４に示すように、ダンパー部１３ａ、１４ａの接続部２７の内面部分を形鋼材１１、１２の連結板部１１ａ、１２ａのスロット溶接用の溝孔１６の位置に合わせ、溶接して形鋼材１１、１２に一体に取り付けて配設される。また、このとき、一方の形鋼材１１に一方のダンパー用鋼板１３、他方の形鋼材１２に他方のダンパー用鋼板１４をそれぞれ一体に取り付け、一対のダンパー用鋼板１３、１４で一対の形鋼材１１、１２を内包するように配設される。 As shown in FIGS. 2 to 4, the damper steel plates 13 and 14 formed in this way are connected to the inner surface portion of the connecting portion 27 of the damper portions 13 a and 14 a of the connecting plate portions 11 a and 12 a of the shaped steel materials 11 and 12. According to the position of the slot 16 for slot welding, it is welded and integrally attached to the shaped steel members 11 and 12. Further, at this time, one damper steel plate 13 is integrally attached to one shape steel member 11, and the other damper steel plate 14 is attached to the other shape steel member 12, respectively. , 12 are included.

また、図１及び図２に示すように、一対の形鋼材１１、１２に一対のダンパー用鋼板１３、１４を取り付けた状態で、一対の形鋼材１１、１２の内部空間Ｈの中心軸Ｏ１方向を、一方の対象部材（本実施形態では溝形鋼）５の軸線Ｏ２方向に合わせて配置する。そして、各ダンパー用鋼板１３、１４の各フランジ部１３ｂ、１４ｂに形成した雌ネジ穴２９にボルト（ネジ）３３を螺着して、各ダンパー用鋼板１３、１４のフランジ部１３ｂ、１４ｂを一方の対象部材の溝形鋼５に固着することによって、一対のダンパー用鋼板１３、１４がそれぞれ一方の対象部材５に直接的に接続されている。 Moreover, as shown in FIG.1 and FIG.2, in the state which attached a pair of damper steel plates 13 and 14 to a pair of shape steel materials 11 and 12, direction of central axis O1 of the internal space H of a pair of shape steel materials 11 and 12 Are arranged in accordance with the direction of the axis O2 of one target member (channel steel in this embodiment) 5. Then, bolts (screws) 33 are screwed into the female screw holes 29 formed in the flange portions 13b and 14b of the damper steel plates 13 and 14, and the flange portions 13b and 14b of the damper steel plates 13 and 14 are connected to one side. A pair of damper steel plates 13 and 14 are directly connected to one target member 5 by being fixed to the channel steel 5 of the target member.

アンカーボルト７は、一対の形鋼材１１、１２の内部空間Ｈに、その中心軸線Ｏ３が内部空間Ｈの中心軸線Ｏ１と同軸上に配されるようにして挿通されている。そして、このアンカーボルト７は、一端（下端）側を図示せぬ他方の対象部材６に固着して配設されている。また、アンカーボルト７は、一対の形鋼材１１、１２の内部空間Ｈに挿通する他端側を一対の形鋼材１１、１２に固着して配設されている。本実施形態では、アンカーボルト７にナット（下部ナット）９を螺着するとともに、座金３４を一対の形鋼材１１、１２の下端部に当接させ、且つ、内部空間Ｈを挿通して一対の形鋼材１１、１２の上端よりも上方に配されたアンカーボルト７の他端側にナット（上部ナット）８を螺着するとともにストッパー機構１５のストッパー部材３５を一対の形鋼材１１、１２の上端部に当接させる。このように一対の形鋼材１１、１２を上下方向Ｔ２で挟み込むように２つのナット８、９と座金３４とストッパー部材３５をアンカーボルト７に取り付けることによって、アンカーボルト７の他端側が一対の形鋼材１１、１２に固着されている。 The anchor bolt 7 is inserted into the internal space H of the pair of shaped steel members 11 and 12 so that the central axis O3 is coaxially arranged with the central axis O1 of the internal space H. The anchor bolt 7 is disposed with one end (lower end) side fixed to the other target member 6 (not shown). The anchor bolt 7 is disposed with the other end thereof inserted into the internal space H of the pair of structural steel members 11 and 12 fixed to the pair of structural steel members 11 and 12. In the present embodiment, a nut (lower nut) 9 is screwed onto the anchor bolt 7, the washer 34 is brought into contact with the lower end portions of the pair of shape steel members 11, 12, and the internal space H is inserted into the pair A nut (upper nut) 8 is screwed onto the other end side of the anchor bolt 7 arranged above the upper ends of the shape steel materials 11 and 12, and the stopper member 35 of the stopper mechanism 15 is attached to the upper ends of the pair of shape steel materials 11 and 12. Abut the part By attaching the two nuts 8 and 9, the washer 34, and the stopper member 35 to the anchor bolt 7 so as to sandwich the pair of shaped steel materials 11 and 12 in the vertical direction T 2 in this way, the other end side of the anchor bolt 7 is a pair of shapes. It is fixed to the steel materials 11 and 12.

そして、アンカーボルト７の他端側を一対の形鋼材１１、１２に固着することで、一対の形鋼材１１、１２に固着した一対のダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａが、一対の形鋼材１１、１２、アンカーボルト７を介して他方の対象部材６に間接的に接続されている。 Then, by fixing the other end of the anchor bolt 7 to the pair of structural steel members 11, 12, the damper portions 13 a, 14 a of the pair of damper steel plates 13, 14 fixed to the pair of structural steel members 11, 12 are paired. The steel members 11 and 12 and the anchor bolt 7 are indirectly connected to the other target member 6.

一方、図１に示すように、本実施形態のストッパー機構１５は、前述の通り、ストッパー部材３５を備えて構成されている。このストッパー部材３５は、中央にアンカーボルト７を挿通するためのボルト挿通孔３５ａを備えた略方形平板状に形成されている。また、本実施形態のストッパー部材３５は、ボルト挿通孔３５ａにアンカーボルト７を挿通し、一対の形鋼材１１、１２の上端部に当接して上部ナット８を締め付けることによって、アンカーボルト７に固着されている。 On the other hand, as shown in FIG. 1, the stopper mechanism 15 of the present embodiment includes the stopper member 35 as described above. The stopper member 35 is formed in a substantially rectangular flat plate shape having a bolt insertion hole 35a for inserting the anchor bolt 7 in the center. Further, the stopper member 35 of the present embodiment is fixed to the anchor bolt 7 by inserting the anchor bolt 7 into the bolt insertion hole 35a and abutting the upper end portions of the pair of structural steel members 11 and 12 and tightening the upper nut 8. Has been.

また、このとき、ストッパー部材３５は、ダンパー用鋼板１３、１４の上端部２１との上下方向（相対変位の方向）Ｔ２の間に所定の間隔ｄ１をあけ、且つダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ及びフランジ部１３ｂ、１４ｂの上端部２１と一方の対象部材５の軸Ｏ２方向（上下方向Ｔ２、相対変位の方向）に重なるように、アンカーボルト７に接続して配設されている。言い換えると、ストッパー部材３５は、アンカーボルト７に固着した状態で、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ及びフランジ部１３ｂ、１４ｂの上端部２１と一方の対象部材５の軸Ｏ２方向に重なる大きさ、形状で形成されている。また、ストッパー部材３５とダンパー用鋼板１３、１４の上端部２１の上下方向Ｔ２の間隔ｄ１は、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａが塑性変形する可動域（可動範囲の寸法）よりも大きな寸法となるように設定されている。 At this time, the stopper member 35 has a predetermined distance d1 between the upper end 21 of the damper steel plates 13 and 14 and the vertical direction (relative displacement direction) T2, and the damper steel plates 13 and 14 have dampers. The upper ends 21 of the portions 13a and 14a and the flange portions 13b and 14b are connected to the anchor bolt 7 so as to overlap with the axis O2 direction (vertical direction T2, the direction of relative displacement) of one target member 5. Yes. In other words, the stopper member 35 is fixed to the anchor bolt 7 in the direction of the axis O2 of the damper member 13a, 14a of the damper steel plate 13, 14 and the upper end portion 21 of the flange portion 13b, 14b and the one target member 5. Overlapping size and shape are formed. Further, the distance d1 between the stopper member 35 and the upper end portion 21 of the damper steel plates 13 and 14 in the vertical direction T2 is based on the movable range (the size of the movable range) in which the damper portions 13a and 14a of the damper steel plates 13 and 14 are plastically deformed. Is also set to be a large size.

ここで、一対の形鋼材１１、１２の下端部２２に当接して下部ナット９を締め付けることによってアンカーボルト７に固着される座金３４は、ダンパー用鋼板１３、１４の下端部２２との上下方向Ｔ２の間に所定の間隔ｄ２をあけた状態で配設されている。また、座金３４とダンパー用鋼板１３、１４の下端部２２の上下方向Ｔ２の間隔ｄ２は、ストッパー部材３５と同様、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａが塑性変形する可動域よりも大きな寸法となるように設定されている。 Here, the washer 34 fixed to the anchor bolt 7 by abutting against the lower end portion 22 of the pair of structural steel members 11 and 12 and tightening the lower nut 9 is in the vertical direction with respect to the lower end portion 22 of the damper steel plates 13 and 14. They are arranged with a predetermined distance d2 between T2. In addition, the distance d2 in the vertical direction T2 between the washer 34 and the lower end portion 22 of the damper steel plates 13 and 14 is the same as the stopper member 35 than the movable range in which the damper portions 13a and 14a of the damper steel plates 13 and 14 are plastically deformed. It is set to be a large size.

そして、上記構成からなる本実施形態の制震装置Ｂにおいては、図６（ａ）及び図６（ｂ）に示すように、まず、ストッパー機構１５のストッパー部材３５及び座金３４がダンパー用鋼板１３、１４の端部（上端部２１、下端部２２）との間に所定の間隔ｄ１、ｄ２をあけて配設されているため、地震時に建物に振動エネルギーが作用して一方の対象部材５と他方の対象部材６の間に相対変位が生じるとともに、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ（ダンパー機能部２８）が塑性変形する。そして、このダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａが塑性変形して曲げ降伏することによって、振動エネルギーが吸収して減衰される。このようにして制震装置Ｂによってエネルギー吸収性能（制震性能）が発揮されることで、建物の地震時の揺れが抑えられる。 In the vibration damping device B of the present embodiment having the above-described configuration, as shown in FIGS. 6A and 6B, first, the stopper member 35 and the washer 34 of the stopper mechanism 15 are the damper steel plate 13. , 14 are arranged at predetermined intervals d1 and d2 between the end portions (the upper end portion 21 and the lower end portion 22), so that vibration energy acts on the building during an earthquake and While relative displacement occurs between the other target members 6, the damper portions 13a and 14a (damper function portions 28) of the damper steel plates 13 and 14 are plastically deformed. The damper portions 13a and 14a of the damper steel plates 13 and 14 are plastically deformed and bent and yielded, so that vibration energy is absorbed and attenuated. Thus, the energy absorption performance (seismic performance) is exhibited by the seismic control device B, so that the shaking of the building during an earthquake can be suppressed.

一方、図６（ｃ）に示すように、ストッパー機構１５のストッパー部材３５がダンパー用鋼板１３、１４の上端部２１と前記相対変位の方向Ｔ２に重なるように配設されている。このため、大地震時など、一方の対象部材５と他方の対象部材６とが大きく相対変位し、万が一にダンパー用鋼板１３、１４に破断が生じた場合には、一方の対象部材５に固着したダンパー用鋼板１３、１４の鋼板残片４０の上端部２１がストッパー部材３５に当接することになる。これにより、ストッパー機構１５によって他方の対象部材６に対する一方の対象部材５の相対変位が規制される（相対変位量が限定される）。 On the other hand, as shown in FIG. 6C, the stopper member 35 of the stopper mechanism 15 is disposed so as to overlap the upper end portion 21 of the damper steel plates 13 and 14 in the relative displacement direction T2. For this reason, when one target member 5 and the other target member 6 are greatly displaced relative to each other and the damper steel plates 13 and 14 are broken in the event of a large earthquake, the one target member 5 is fixed. The upper end 21 of the remaining steel plate 40 of the damper steel plates 13 and 14 comes into contact with the stopper member 35. Thereby, the relative displacement of one target member 5 with respect to the other target member 6 is regulated by the stopper mechanism 15 (the relative displacement amount is limited).

また、このとき、本実施形態の制震装置Ｂにおいては、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ及びフランジ部１３ｂ、１４ｂの上端部２１と前記相対変位の方向Ｔ２に重なるように、ストッパー部材３５が配設されている。このため、一方の対象部材５と他方の対象部材６とが大きく相対変位し、万が一にダンパー用鋼板１３、１４に破断が生じた場合に、ダンパー用鋼板１３、１４の鋼板残片４０のダンパー部１３ａ、１４ａとフランジ部１３ｂ、１４ｂの上端部２１がストッパー部材３５に当接することになる。そして、このようにダンパー用鋼板１３、１４の鋼板残片４０のダンパー部１３ａ、１４ａとフランジ部１３ｂ、１４ｂの上端部２１がストッパー部材３５に当接することで、ストッパー部材３５とダンパー用鋼板１３、１４の鋼板残片４０との接触面積が大きく確保され、ストッパー部材３５と鋼板残片４０の当接時の作用応力が小さく抑えられる。 At this time, in the damping device B of the present embodiment, the damper portions 13a, 14a of the damper steel plates 13, 14 and the upper end portion 21 of the flange portions 13b, 14b overlap with the relative displacement direction T2. A stopper member 35 is provided. For this reason, when one target member 5 and the other target member 6 are largely displaced relative to each other and the damper steel plates 13 and 14 are broken, the damper portion of the steel plate residue 40 of the damper steel plates 13 and 14 is used. 13a, 14a and the upper end portion 21 of the flange portions 13b, 14b come into contact with the stopper member 35. And the damper member 13a, 14a of the steel plate residue 40 of the damper steel plates 13, 14 and the upper end portion 21 of the flange portions 13b, 14b abut against the stopper member 35, so that the stopper member 35 and the damper steel plate 13, 14 is ensured to have a large contact area with the steel plate residue 40, and the acting stress at the time of contact between the stopper member 35 and the steel plate residue 40 is kept small.

これにより、本実施形態の制震装置Ｂにおいては、ダンパー用鋼板１３、１４が万が一に破断した場合を想定したとしても、ストッパー機構１５によって、一方の対象部材の溝形鋼５と他方の対象部材６に接続したアンカーボルト７とが分離して溝形鋼５の内部空間Ｈからアンカーボルト７が引き抜けてしまうことが確実に防止される。 Thereby, in the damping device B of this embodiment, even if it assumes that the steel plates 13 and 14 for dampers should fracture | rupture by any chance, the grooved steel 5 of one object member and the other object are detected by the stopper mechanism 15. It is reliably prevented that the anchor bolt 7 connected to the member 6 is separated and the anchor bolt 7 is pulled out from the internal space H of the channel steel 5.

ここで、図７は、図１に示した本実施形態の制震装置Ｂの性能試験結果を示している。なお、図７において、縦軸は、制震装置Ｂに作用させた荷重Ｐと制震装置Ｂの降伏耐力Ｐｙの比（Ｐ／Ｐｙ）であり、横軸は、制震装置Ｂの変形量である。 Here, FIG. 7 shows the performance test result of the damping device B of the present embodiment shown in FIG. In FIG. 7, the vertical axis represents the ratio (P / Py) between the load P applied to the vibration control device B and the yield strength Py of the vibration control device B, and the horizontal axis represents the deformation amount of the vibration control device B. It is.

この図７から、本実施形態の制震装置Ｂにおいては、ダンパー部１３ａ、１４ａが降伏し、変形量が増大してダンパー部１３ａ、１４ａが破断した後、急減に耐力が減少し、その後、耐力がゼロになる。そして、耐力がゼロになってからさらに変形量が増大し、２８ｍｍに達すると、ストッパー機構１５のストッパー部材３５にダンパー用鋼板１３、１４の上端部２１が接触して変形が拘束され、これとともに耐力が急激に上昇することが確認された。 From FIG. 7, in the damping device B of the present embodiment, the damper parts 13a, 14a yield, the deformation increases, and the damper parts 13a, 14a break, and then the yield strength decreases rapidly, Yield is zero. Then, when the yield strength becomes zero, the amount of deformation further increases, and when it reaches 28 mm, the upper end portions 21 of the damper steel plates 13 and 14 come into contact with the stopper member 35 of the stopper mechanism 15 and the deformation is restrained. It was confirmed that the yield strength increased rapidly.

この結果により、大地震時など、一方の対象部材と他方の対象部材とが大きく相対変位し、万が一にダンパー用鋼板１３、１４に破断が生じた場合に、他方の対象部材６に対する一方の対象部材５の相対変位を規制するように、本実施形態の制震装置Ｂのストッパー機構１５が確実に性能を発揮することが実証された。 As a result, when one target member and the other target member are largely displaced relative to each other, such as during a large earthquake, and the damper steel plates 13 and 14 are broken, one target with respect to the other target member 6 is detected. It was proved that the stopper mechanism 15 of the vibration control device B of the present embodiment reliably exerts performance so as to regulate the relative displacement of the member 5.

したがって、本実施形態の制震装置Ｂにおいては、ストッパー機構１５のストッパー部材３５がダンパー用鋼板１３、１４の端部２１との間に所定の間隔ｄ１をあけて配設されていることにより、地震時に建物に振動エネルギーが作用して一方の対象部材５と他方の対象部材６の間に相対変位が生じるとともに、ダンパー用鋼板１３、１４を塑性変形させ、振動エネルギーを吸収し減衰させることができる。 Therefore, in the damping device B of the present embodiment, the stopper member 35 of the stopper mechanism 15 is disposed with a predetermined interval d1 between the end portions 21 of the damper steel plates 13 and 14, Vibration energy acts on the building during an earthquake to cause a relative displacement between one target member 5 and the other target member 6, and plastically deform the damper steel plates 13, 14 to absorb and attenuate the vibration energy. it can.

また、ストッパー機構１５のストッパー部材３５がダンパー用鋼板１３、１４の端部２１と前記相対変位の方向Ｔ２に重なるように配設されているため、大地震時など、一方の対象部材５と他方の対象部材６とが大きく相対変位し、万が一にダンパー用鋼板１３、１４に破断が生じた場合に、一方の対象部材５に固着したダンパー用鋼板１３、１４の鋼板残片４０の端部２１をストッパー部材３５に当接させることができる。これにより、確実にストッパー機構１５によって他方の対象部材６に対する一方の対象部材５の相対変位を規制することが可能になる。 In addition, since the stopper member 35 of the stopper mechanism 15 is disposed so as to overlap the end portion 21 of the damper steel plates 13 and 14 and the relative displacement direction T2, the one target member 5 and the other member, for example, during a large earthquake When the damper steel plates 13 and 14 are ruptured, the end 21 of the steel plate residue 40 of the damper steel plates 13 and 14 fixed to one of the target members 5 is changed. It can be brought into contact with the stopper member 35. Thereby, the relative displacement of the one target member 5 with respect to the other target member 6 can be reliably controlled by the stopper mechanism 15.

よって、本実施形態の制震装置Ｂによれば、フェイルセーフの観点からダンパー用鋼板１３、１４が万が一に破断した場合を想定したとしても、ストッパー機構１５を備えていることによって、一方の対象部材の溝形鋼５と他方の対象部材６に接続したアンカーボルト７とが分離して溝形鋼５からアンカーボルト７が引き抜けてしまうことを確実に防止できる。これにより、ダンパー用鋼板１３、１４が想定外に破断した場合においても、フェイルセーフの観点から確実に耐力壁１などの上部構造の転倒を防止できる制震装置Ｂを提供することが可能になる。 Therefore, according to the damping device B of the present embodiment, even if it is assumed that the damper steel plates 13 and 14 are torn in the unlikely event from the viewpoint of fail-safety, by providing the stopper mechanism 15, It is possible to reliably prevent the anchor bolt 7 connected to the other target member 6 from being separated and the anchor bolt 7 being pulled out from the groove steel 5. Thereby, even when the damper steel plates 13 and 14 are unexpectedly broken, it is possible to provide the vibration control device B that can reliably prevent the upper structure such as the load bearing wall 1 from falling from the viewpoint of fail-safe. .

また、本実施形態の制震装置Ｂにおいては、ダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ及びフランジ部１３ｂ、１４ｂの端部２１と相対変位の方向Ｔ２に重なるように、ストッパー部材３５が配設されているため、一方の対象部材５と他方の対象部材６とが大きく相対変位し、万が一にダンパー用鋼板に破断が生じた場合に、ダンパー用鋼板１３、１４（鋼板残片４０）のダンパー部１３ａ、１４ａとフランジ部１３ｂ、１４ｂの端部２１全体をストッパー部材３５に当接させることができ、ストッパー部材３５とダンパー用鋼板１３、１４の鋼板残片４０との接触面積を大きく確保することができる。これにより、ストッパー部材３５と鋼板残片４０の当接時の作用応力を小さくすることができ、より確実にストッパー機構１５によって他方の対象部材６に対する一方の対象部材５の相対変位を規制することが可能になる。 Further, in the vibration damping device B of the present embodiment, the stopper member 35 is disposed so as to overlap the damper portions 13a, 14a of the damper steel plates 13, 14 and the end portions 21 of the flange portions 13b, 14b in the relative displacement direction T2. Therefore, when one of the target members 5 and the other target member 6 are relatively displaced relative to each other, and the damper steel plate is broken, the damper steel plates 13 and 14 (steel plate residue 40) The end portions 21 of the damper portions 13a and 14a and the flange portions 13b and 14b can be brought into contact with the stopper member 35, so that a large contact area between the stopper member 35 and the steel plate residues 40 of the damper steel plates 13 and 14 is ensured. be able to. Thereby, the acting stress at the time of contact between the stopper member 35 and the steel plate residue 40 can be reduced, and the relative displacement of one target member 5 with respect to the other target member 6 can be more reliably regulated by the stopper mechanism 15. It becomes possible.

さらに、本実施形態の制震装置Ｂにおいては、ダンパー部１３ａ、１４ａの両側部に設けられた各フランジ部１３ｂ、１４ｂが、断面視で１つ以上の角部３０、３１を備えて屈曲形成されていることによって、ストッパー部材３５と鋼板残片４０（フランジ部１３ｂ、１４ｂ）との接触面積を大きく確保することができる。これにより、ストッパー部材３５と鋼板残片４０の当接時の作用応力をより小さくすることができ、さらに確実にストッパー機構１５によって他方の対象部材６に対する一方の対象部材５の相対変位を規制することが可能になる。 Further, in the vibration damping device B of the present embodiment, the flange portions 13b and 14b provided on both side portions of the damper portions 13a and 14a are bent and formed with one or more corner portions 30 and 31 in a sectional view. By doing so, it is possible to ensure a large contact area between the stopper member 35 and the steel plate residue 40 (flange portions 13b, 14b). Thereby, the acting stress at the time of contact of the stopper member 35 and the steel plate residue 40 can be further reduced, and the relative displacement of the one target member 5 with respect to the other target member 6 is more reliably regulated by the stopper mechanism 15. Is possible.

以上、本発明に係る制震装置の一実施形態について説明したが、本発明は上記の一実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。 Although one embodiment of the vibration control device according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

例えば、本実施形態では、制震装置Ｂが耐力壁１の下端側に脚部２として設置される制震装置であるものとして説明を行ったが、本発明にかかる制震装置は、勿論、例えばブレースに組み込むなどして用いてもよく、耐力壁１の脚部２として用いることに限定する必要はない。 For example, in the present embodiment, the vibration control device B has been described as a vibration control device installed as the leg portion 2 on the lower end side of the bearing wall 1, but the vibration control device according to the present invention is, of course, For example, it may be used by being incorporated in a brace, and is not necessarily limited to being used as the leg portion 2 of the bearing wall 1.

また、本実施形態では、他方の対象部材６に繋がるアンカーボルト７にストッパー機構１５のストッパー部材３５を取り付け、このストッパー部材３５に一方の対象部材５に接続したダンパー用鋼板１３、１４の端部２１を当接させて、他方の対象部材６に対する一方の対象部材５の相対変位を規制するものとして説明を行ったが、本発明にかかる制震装置のストッパー機構１５は、ダンパー用鋼板１３、１４に破断が生じた際に、一方の対象部材５に固着したダンパー用鋼板１３、１４の鋼板残片４０が当接して、他方の対象部材６に対する一方の対象部材５の相対変位を規制することが可能であればよい。このため、アンカーボルト７にストッパー部材３５を取り付けて構成することに限定する必要はない。 In this embodiment, the stopper member 35 of the stopper mechanism 15 is attached to the anchor bolt 7 connected to the other target member 6, and the end portions of the damper steel plates 13 and 14 connected to the one target member 5 to the stopper member 35. 21 has been described as restricting the relative displacement of one target member 5 with respect to the other target member 6, but the stopper mechanism 15 of the vibration control device according to the present invention includes the damper steel plate 13, When the fracture occurs in 14, the steel plate remainder 40 of the damper steel plates 13 and 14 fixed to one target member 5 comes into contact with each other, and the relative displacement of one target member 5 with respect to the other target member 6 is regulated. If it is possible. Therefore, it is not necessary to limit the anchor bolt 7 to the stopper member 35.

さらに、本実施形態では、ダンパー用鋼板１３、１４の上端部２１（一端部）が当接するようにストッパー部材３５を設け、ダンパー用鋼板１３、１４の下端部２２（他端部）側には単なる座金３４を設けて制震装置Ｂが構成されているものとしたが、ダンパー用鋼板１３、１４の下端部２２側の座金３４もストッパー部材３５として制震装置Ｂを構成してもよい。すなわち、ダンパー用鋼板１３、１４の下端部２２側の座金３４をストッパー部材３５とし、このストッパー部材３５を、ダンパー用鋼板１３、１４の下端部２２との間に所定の間隔ｄ２をあけ、且つダンパー用鋼板１３、１４の下端部２２と前記相対変位の方向Ｔ２に重なるように、アンカーボルト７に接続して配設するようにしてもよい。そして、このように構成した場合には、上下のストッパー部材３５、３５によって他方の対象部材６に対する一方の対象部材５の上下双方向Ｔ２の相対変位を規制することができ、一方の対象部材の溝形鋼５と他方の対象部材６に接続したアンカーボルト７とが分離して溝形鋼５の内部空間Ｈからアンカーボルト７が引き抜けてしまうことをより確実に防止して、耐力壁１が横転することを防止することが可能になる。 Furthermore, in this embodiment, the stopper member 35 is provided so that the upper end part 21 (one end part) of the steel plates 13 and 14 for dampers contacts, and the lower end part 22 (other end part) side of the steel plates 13 and 14 for dampers is provided. Although the damping device B is configured by providing a simple washer 34, the washer 34 on the lower end 22 side of the damper steel plates 13, 14 may also be configured as the stopper member 35. That is, the washer 34 on the lower end portion 22 side of the damper steel plates 13 and 14 is used as a stopper member 35, and the stopper member 35 is provided with a predetermined distance d2 between the lower end portions 22 of the damper steel plates 13 and 14, and You may make it connect with the anchor bolt 7 and arrange | position so that the lower end part 22 of the steel plates 13 and 14 for dampers and the direction T2 of the said relative displacement may overlap. And when comprised in this way, the relative displacement of the up-and-down bidirectional | two-way T2 of the one target member 5 with respect to the other target member 6 can be controlled with the upper and lower stopper members 35 and 35, It is possible to more reliably prevent the anchor bolt 7 from being pulled out of the internal space H of the grooved steel 5 due to separation of the grooved steel 5 and the anchor bolt 7 connected to the other target member 6. Can be prevented from rolling over.

また、ダンパー用鋼板１３、１４に破断が生じた際には、一方の対象部材５に固着したダンパー用鋼板１３、１４の鋼板残片４０の一部の端部２１がストッパー機構１５に当接すれば、他方の対象部材６に対する一方の対象部材５の相対変位を規制することが可能であるため、ストッパー機構１５（ストッパー部材３５）は、必ずしもダンパー用鋼板１３、１４のダンパー部１３ａ、１４ａ及びフランジ部１３ｂ、１４ｂの端部２１全体に当接しなくてもよい。 Further, when the damper steel plates 13 and 14 are ruptured, if a part of the end 21 of the steel plate remaining 40 of the damper steel plates 13 and 14 fixed to the one target member 5 comes into contact with the stopper mechanism 15. Since the relative displacement of one target member 5 with respect to the other target member 6 can be restricted, the stopper mechanism 15 (stopper member 35) is not necessarily limited to the damper portions 13a and 14a of the damper steel plates 13 and 14, and the flange. It is not necessary to contact the entire end portion 21 of the portions 13b and 14b.

１耐力壁
２脚部
３従来のダンパー用鋼板
３ａフランジ部
３ｂダンパー部
４従来のダンパー用鋼板
４ａフランジ部
４ｂダンパー部
５一方の対象部材（溝形鋼）
６他方の対象部材
７アンカーボルト
８ナット
９ナット
１０形鋼材（連結部材）
１１形鋼材（連結部材）
１１ａ連結板部
１１ｂ突出板部
１１ｃ延出板部
１２形鋼材（連結部材）
１２ａ連結板部
１２ｂ突出板部
１２ｃ延出板部
１３ダンパー用鋼板
１３ａダンパー部
１３ｂフランジ部
１４ダンパー用鋼板
１４ａダンパー部
１４ｂフランジ部
１５ストッパー機構
１６溝孔
１７〜２０スリット孔
２１上端部（端部）
２２下端部（端部）
２３ダンパー片
２４連結部
２５架設部
２６枠縁部
２７接続部
２８ダンパー機能部
２９雌ネジ穴
３０角部
３１角部
３２鋼板
３３ボルト（ネジ）
３４座金
３５ストッパー部材
３５ａボルト挿通孔
４０鋼板残片
Ａ従来の制震装置
Ｂ制震装置
ｄ１間隔
ｄ２間隔
Ｈ内部空間
Ｏ１内部空間の中心軸
Ｏ２一方の対象部材の軸線
Ｏ３アンカーボルトの中心軸線
Ｔ１幅方向
Ｔ２上下方向（相対変位の方向） DESCRIPTION OF SYMBOLS 1 Load-bearing wall 2 Leg part 3 Conventional damper steel plate 3a Flange part 3b Damper part 4 Conventional damper steel plate 4a Flange part 4b Damper part One object member (channel steel)
6 Other target member 7 Anchor bolt 8 Nut 9 Nut 10 Shaped steel (connecting member)
11 Shaped steel (connecting member)
11a Connecting plate portion 11b Protruding plate portion 11c Extending plate portion 12 Shaped steel (connecting member)
12a Connecting plate portion 12b Protruding plate portion 12c Extending plate portion 13 Damper steel plate 13a Damper portion 13b Flange portion 14 Damper steel plate 14a Damper portion 14b Flange portion 15 Stopper mechanism 16 Slot holes 17 to 20 Slit hole 21 Upper end portion (end portion) )
22 Lower end (end)
23 Damper piece 24 Connecting portion 25 Installation portion 26 Frame edge portion 27 Connection portion 28 Damper function portion 29 Female screw hole 30 Corner portion 31 Corner portion 32 Steel plate 33 Bolt (screw)
34 Washer 35 Stopper member 35a Bolt insertion hole 40 Steel plate residue A Conventional damping device B Damping device d1 Interval d2 Interval H Internal space O1 Central axis O2 of the internal space O3 One target member axis O3 Anchor bolt central axis T1 Width Direction T2 Vertical direction (direction of relative displacement)

Claims

A vibration control device that connects a pair of target members and exhibits energy absorption performance according to a relative displacement between the pair of target members,
Steel plates for dampers that are connected to one target member and the other target member, respectively, exhibit relative energy between the pair of target members and plastically deform and exhibit energy absorption performance,
The steel plate residue of the steel plate for damper fixed to the one target member is provided when connected to the other target member and the damper steel plate is broken by relative displacement between the pair of target members. A vibration control device comprising: a stopper mechanism that abuts and restricts relative displacement of the one target member with respect to the other target member.

The vibration control device according to claim 1,
A plurality of slit holes are formed, and the damper steel plate includes a substantially flat damper portion that is plastically deformed according to the relative displacement, and flange portions that are respectively provided on both sides of the damper portion. It is formed in a letter shape,
The damper steel plate is disposed by connecting the damper portion to the anchor member connecting the flange portion to the one target member and connecting to the other target member via a connecting member,
The stopper mechanism is connected to the anchor bolt so as to be spaced apart from the end of the damper steel plate and overlap the end of the damper steel plate in the direction of relative displacement. A damping device comprising a stopper member to be operated.

The vibration control device according to claim 2,
The damping device, wherein the stopper member is disposed so as to overlap the end of the damper portion and the flange portion of the damper steel plate in the direction of the relative displacement.

In the vibration control device according to claim 2 or claim 3,
The stopper member is disposed so as to overlap with at least the end of the flange portion of the damper steel plate in the direction of the relative displacement,
Each of the flange portions provided on both side portions of the damper portion is formed with one or more corner portions in a cross-sectional view orthogonal to the direction of the relative displacement.