JP5016329B2

JP5016329B2 - Damper structure

Info

Publication number: JP5016329B2
Application number: JP2007058339A
Authority: JP
Inventors: 志偉銭; 裕治小竹; 隆之鈴木; 俊一山田; 紀英小鹿
Original assignee: Kajima Corp; Senqcia Corp
Current assignee: Kajima Corp; Senqcia Corp
Priority date: 2007-03-08
Filing date: 2007-03-08
Publication date: 2012-09-05
Anticipated expiration: 2027-03-08
Also published as: JP2008223778A

Description

本発明は、構造が簡易でコンパクトな履歴型ダンパ及びダンパ構造に関する。 The present invention relates to a hysteretic damper and a damper structure that are simple in structure and compact.

従来、柱と梁を有する門型の構造物の耐震性を高める為、ブレースや方杖等が用いられているが、構造物の制震を行う為、これらの一部にダンパを設ける場合がある。ダンパには、流体抵抗を利用した油圧ダンパ、摩擦抵抗を利用した摩擦ダンパ、部材の弾塑性変形を利用した履歴型ダンパ等がある。特に履歴型ダンパは、コストや取り扱いやすさに優れている。 Conventionally, braces and wands have been used to increase the earthquake resistance of gate-type structures with columns and beams. However, dampers may be provided on some of these structures to control the structures. is there. Examples of the damper include a hydraulic damper using fluid resistance, a friction damper using friction resistance, and a hysteretic damper using elastic-plastic deformation of a member. In particular, the hysteresis damper is excellent in cost and ease of handling.

履歴型ダンパにも種々の構造があり、ブレースに取り付けられるダンパとしては、従来から知られる座屈拘束型ブレースがある。座屈拘束型ブレースは、コンクリートの内部に鋼材を埋設した構造を有する。しかしこのような方式では、コンパクトにダンパを構成することができず、また、取替え作業を単純化することができない。このような問題に対し、鋼材のみから構成されるダンパとして、（１）筒体部または湾曲部と平板部とを接合してなる履歴型ダンパ（特許文献１）や、（２）平板を湾曲させ、平板部と湾曲部からなる履歴型ダンパがある（特許文献２）。
特開２００１−２０７６７９号公報特開２００６−５２８２４号公報 Hysteretic dampers also have various structures, and conventionally known buckling-restrained braces are known as dampers attached to the braces. The buckling-restrained brace has a structure in which a steel material is embedded inside concrete. However, in such a system, the damper cannot be configured in a compact manner, and the replacement work cannot be simplified. For such a problem, (1) a hysteretic damper (Patent Document 1) formed by joining a cylindrical portion or a curved portion and a flat plate portion, and (2) a flat plate as a damper composed only of a steel material. There is a hysteretic damper composed of a flat plate portion and a curved portion (Patent Document 2).
JP 2001-207679 A JP 2006-52824 A

しかしながら、（１）の履歴型ダンパでは筒体部または湾曲部の塑性変形を利用してエネルギーを吸収するため、ダンパ製造時の接合及び曲げ加工時の寸法ばらつき等の影響で、同一形状を得ることが難しく、同一条件下でも筒体部または湾曲部の変形が一定しない。また、筒体部または湾曲部を変形させる為、ダンパの強度設計が難しいという問題がある。（２）の履歴型ダンパは、湾曲部および平板部の弾塑性変形にてエネルギーを吸収するものであるが、ダンパに湾曲箇所が多いため、ダンパ製造時の曲げ加工が困難であり、同一形状のダンパを得ることが難しい。また、ある程度以上の湾曲部の曲げ半径が必要である為、ダンパ自体が大きくなるという問題がある。 However, since the hysteretic damper of (1) absorbs energy by using plastic deformation of the cylindrical part or the curved part, the same shape can be obtained due to the influence of dimensional variation during joining and bending during the manufacture of the damper. It is difficult, and the deformation of the cylindrical portion or the curved portion is not constant even under the same conditions. In addition, since the cylindrical portion or the curved portion is deformed, there is a problem that it is difficult to design the strength of the damper. The hysteretic damper of (2) absorbs energy by elasto-plastic deformation of the curved portion and the flat plate portion. However, since the damper has many curved portions, it is difficult to bend at the time of manufacturing the damper and has the same shape. It is difficult to get a damper. Moreover, since the bending radius of the curved part more than a certain level is required, there is a problem that the damper itself becomes large.

本発明は、このような問題に鑑みてなされたもので、ダンパの製造及び強度設計が容易で、構造が簡易かつコンパクトな履歴型ダンパ及びダンパ構造を提供することを目的とする。 The present invention has been made in view of such problems, and an object of the present invention is to provide a hysteretic damper and a damper structure that are easy to manufacture and strength design of a damper, and have a simple and compact structure.

前述した目的を達成するため、本発明は、対向して設けられ、それぞれ長さの異なる１対の平板部と、前記平板部の端部を連結する連結部と、前記１対の平板部の他の端部で、それぞれ第１の構造部材および第２の構造部材に接合される接合部と、を具備する履歴型ダンパを用い、柱と梁との交差部に設けられ、柱と梁とで構成される四辺形の対角線方向に延びる第１の構造部材と、前記第１の構造部材の延長位置の前記対角線上に設けられる第２の構造部材とが、前記第２の構造部材の延長線上に設けられる一対の前記履歴型ダンパのそれぞれの平板部で接続され、前記第２の構造部材は、前記第１の構造部材よりも外形の寸法が小さく、前記第２の構造部材と前記平板部との間にスペーサが設けられ、前記第２の構造部材が前記第１の構造部材の方向に力を受けると、前記平板部が前記第２の構造部材の方向である内側に湾曲するように変形し、前記第２の構造部材が前記第１の構造部材と逆方向に力を受けると、前記平板部が前記第２の構造部材と反対方向である外側に湾曲するように変形することを特徴とするダンパ構造である。
In order to achieve the above-described object, the present invention provides a pair of flat plate portions which are provided opposite to each other, have different lengths, a connecting portion which connects end portions of the flat plate portions, and the pair of flat plate portions. The other end portion is provided at the intersection of the column and the beam using a hysteretic damper having a joint portion joined to the first structural member and the second structural member, respectively. The first structural member extending in the diagonal direction of the quadrangle formed by the following, and the second structural member provided on the diagonal line of the extended position of the first structural member are extensions of the second structural member The second structural member is connected to each of the flat plate portions of the pair of hysteretic dampers provided on a line, and the second structural member has a smaller outer dimension than the first structural member, and the second structural member and the flat plate spacer is provided between parts, said second structural member is said first configuration When a force is applied in the direction of the member, the flat plate portion is deformed so as to curve inward, which is the direction of the second structural member, and the second structural member is forced in the direction opposite to the first structural member. When received, the flat plate portion is deformed so as to be bent outward in the opposite direction to the second structural member.

前記平板部には、前記連結部が嵌る凹部が設けられてもよい。The flat plate portion may be provided with a recess into which the connecting portion is fitted.

前記接合部は、前記平板部より幅が広い突出部を有し、前記突出部に設けられたボルト穴で前記第１の構造部材および前記第２の構造部材に接合されてもよい。The joint portion may have a protrusion that is wider than the flat plate portion, and may be joined to the first structural member and the second structural member by a bolt hole provided in the protrusion.

本発明によれば、ダンパが第１の構造部材と第２の構造部材へコンパクトに取り付けられ、ダンパの弾塑性変形により前記構造部材からのエネルギーを吸収するダンパ構造を提供することができる。
ADVANTAGE OF THE INVENTION According to this invention, a damper can be compactly attached to a 1st structural member and a 2nd structural member, and the damper structure which absorbs the energy from the said structural member by the elastic-plastic deformation of a damper can be provided.

本発明によれば、ダンパの製造及び強度設計が容易で、構造が簡易かつコンパクトな履歴型ダンパ及びダンパ構造を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, manufacture and intensity | strength design of a damper are easy, and a hysteresis type damper and damper structure with a simple and compact structure can be provided.

以下、本発明の実施の形態を詳細に説明する。図1は本実施の形態に係る履歴型ダンパ１を示す斜視図であり、図２は履歴型ダンパ１の側面図である。履歴型ダンパ１は、湾曲部を有さない１対の平板部３ａ、３ｂと、直方体である連結部５とから構成される。平板部３ａ、３ｂは、略平行になるように連結部５により連結される。平板部３ａ、３ｂは、外力を受けると弾塑性変形し、これによりエネルギーを吸収し、減衰力を与える。 Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a perspective view showing a hysteresis damper 1 according to the present embodiment, and FIG. 2 is a side view of the hysteresis damper 1. The hysteretic damper 1 includes a pair of flat plate portions 3a and 3b that do not have a curved portion, and a connecting portion 5 that is a rectangular parallelepiped. The flat plate portions 3a and 3b are connected by the connecting portion 5 so as to be substantially parallel. The flat plate portions 3a and 3b are elastically plastically deformed when receiving an external force, thereby absorbing energy and applying a damping force.

連結部５は、平板部３ａ、３ｂの端部で挟まれ、平板部３ａ、３ｂと連結部５はコの字状に連結される。平板部３ａ、３ｂと連結部５は、貫通するボルト９、ナット１１にて固定される。平板部３ａ、３ｂの連結部５との接合部とは反対側の端部は、図示しない構造部材との接合部６ａ、６ｂであり、前記構造部材との接合の為のボルト穴７が設けられる。 The connecting portion 5 is sandwiched between the end portions of the flat plate portions 3a and 3b, and the flat plate portions 3a and 3b and the connecting portion 5 are connected in a U-shape. The flat plate portions 3a and 3b and the connecting portion 5 are fixed by penetrating bolts 9 and nuts 11. The ends of the flat plate portions 3a and 3b on the opposite side to the joint portion with the connecting portion 5 are joint portions 6a and 6b with a structural member (not shown), and are provided with bolt holes 7 for joining with the structural member. It is done.

平板部３は、弾塑性変形によりエネルギーを吸収する機能を有すれば、材質は特定しないが、例えば炭素鋼やステンレス鋼で良い。また、連結部５は、荷重入力時においても１対の平板部３ａ、３ｂを連結できれば良く、材質は特定しないが、例えば炭素鋼やステンレス鋼で良い。平板部３、連結部５の厚み、長さ、幅は、取り付け状態や使用条件に応じて計算等により設定される。 The flat plate portion 3 is not specified as long as it has a function of absorbing energy by elastic-plastic deformation, but may be carbon steel or stainless steel, for example. Moreover, the connection part 5 should just be able to connect a pair of flat plate part 3a, 3b also at the time of load input, and although a material is not specified, it may be carbon steel or stainless steel, for example. The thickness, length, and width of the flat plate portion 3 and the connecting portion 5 are set by calculation or the like according to the mounting state and use conditions.

図３は、履歴型ダンパ１の構造部材への取り付け状態を示す斜視図であり、図４は履歴型ダンパ１と構造部材との取り付け状態を示す側面図である。図４において、履歴型ダンパ１と構造部材の接合に用いるボルト２１、２７、ナット２３、２９は図示を省略する。第１の構造部材であるブラケット１７は、垂直方向へ延びる柱１３と水平方向へ伸びる梁１５の交差部に設けられる。ブラケット１７は、柱１３と梁１５により構成される四辺形の対角方向へ伸びている。第２の構造部材であるブレース１９は、ブラケット１７よりも外形寸法が小さく、ブラケット１７の延長位置の、前記対角線上に設けられる。ブラケット１７とブレース１９は、１対の履歴型ダンパ１で接合される。ブラケット１７とブレース１９は断面Ｈ形の鋼材からなる。 FIG. 3 is a perspective view showing a state in which the hysteretic damper 1 is attached to the structural member, and FIG. 4 is a side view showing an attached state of the hysteretic damper 1 and the structural member. In FIG. 4, the bolts 21 and 27 and the nuts 23 and 29 used for joining the hysteretic damper 1 and the structural member are not shown. The bracket 17 as the first structural member is provided at the intersection of the column 13 extending in the vertical direction and the beam 15 extending in the horizontal direction. The bracket 17 extends in a diagonal direction of a quadrilateral formed by the columns 13 and the beams 15. The brace 19 as the second structural member has an outer dimension smaller than that of the bracket 17, and is provided on the diagonal line at the extended position of the bracket 17. The bracket 17 and the brace 19 are joined by a pair of hysteretic dampers 1. The bracket 17 and the brace 19 are made of a steel material having an H-shaped cross section.

１対の履歴型ダンパ１を対向させ、履歴型ダンパ１の一方の接合部６ａとブラケット１７を、ボルト２１及びナット２３により締結し、履歴型ダンパ１とブラケット１７を接合する。履歴型ダンパ１のもう一方の接合部６ｂとブレース１９との間にはスペーサ２５を挟みこみ、接合部６ｂとブレース１９を、スペーサ２５を貫通するボルト２７及びナット２９により締結し、履歴型ダンパ１とブレース１９を接合する。 A pair of hysteretic dampers 1 are opposed to each other, and one joint 6a of the hysteretic damper 1 and the bracket 17 are fastened by a bolt 21 and a nut 23, and the hysteretic damper 1 and the bracket 17 are joined. A spacer 25 is sandwiched between the other joint portion 6b of the hysteretic damper 1 and the brace 19, and the joint portion 6b and the brace 19 are fastened by a bolt 27 and a nut 29 penetrating the spacer 25. 1 and brace 19 are joined.

柱１３、梁１５、ブラケット１７の接合方法は図示しないが、溶接接合、ボルト接合などの接合手段により接合される。 Although the method of joining the column 13, the beam 15, and the bracket 17 is not shown, they are joined by joining means such as welding joining and bolt joining.

スペーサ２５は、ブレース１９と履歴型ダンパ１とを接合できれば良く、材質は特定しないが、例えば炭素鋼やステンレス鋼でよい。 The spacer 25 only needs to be able to join the brace 19 and the hysteretic damper 1, and the material is not specified, but may be carbon steel or stainless steel, for example.

なお、本実施の形態では、履歴型ダンパ１は、ブレース１９の延長線上に取り付けられ、ブレース型ダンパとしての取り付け状態を示したが、シアリンク型ダンパとして使用してもよい。 In the present embodiment, the hysteretic damper 1 is mounted on the extension line of the brace 19 and shows the mounted state as the brace damper, but may be used as a shear link damper.

次に、履歴型ダンパ１の動作について説明する。図５は、ブレース１９がブラケット１７方向（図中矢印方向）へ力が加わった状態を示す図である。図５に示すように、地震や風などにより、ブレース１９が矢印方向の力を受けると、平板部３ａ、３ｂともにブレース１９側である内側へ湾曲するように変形し、外力のエネルギーを吸収する。ここで、平板部３ａは、平板部３ａと連結部５との接合部と、平板部３ａとブラケット１７との接続部６ａとの間で変形する。平板部３ｂは、平板部３ｂと連結部５との接合部と、平板部３ｂとスペーサ２５との接合部６ｂとの間で変形する。 Next, the operation of the hysteresis damper 1 will be described. FIG. 5 is a diagram illustrating a state in which a force is applied to the brace 19 in the direction of the bracket 17 (the arrow direction in the drawing). As shown in FIG. 5, when the brace 19 receives a force in the direction of an arrow due to an earthquake or a wind, both the flat plate portions 3a and 3b are deformed so as to bend inward, which is the brace 19 side, and absorb the energy of the external force. . Here, the flat plate portion 3 a is deformed between the joint portion between the flat plate portion 3 a and the connecting portion 5 and the connecting portion 6 a between the flat plate portion 3 a and the bracket 17. The flat plate portion 3 b is deformed between a joint portion between the flat plate portion 3 b and the connecting portion 5 and a joint portion 6 b between the flat plate portion 3 b and the spacer 25.

また、図５に示す方向にブレース１９へ力が加わると、履歴型ダンパ１は内側へ湾曲するように変形するが、スペーサ２５により、履歴型ダンパ１とブレース１９との間には隙間があるため、変形時にも履歴型ダンパ１の連結部側とブレース１９は接触しない。すなわち、履歴型ダンパ１は、変形部が他の部位から拘束されることなく変形する。ここで、スペーサ２５の厚みは、ブレース１９とブラケット１７との相対変位量と履歴型ダンパ１の寸法等により設計される。 Further, when a force is applied to the brace 19 in the direction shown in FIG. 5, the hysteretic damper 1 is deformed so as to bend inward, but there is a gap between the hysteretic damper 1 and the brace 19 due to the spacer 25. For this reason, the connecting portion side of the hysteresis damper 1 and the brace 19 do not contact even during deformation. That is, the hysteretic damper 1 is deformed without the deformation portion being restrained from other parts. Here, the thickness of the spacer 25 is designed based on the relative displacement between the brace 19 and the bracket 17, the size of the hysteretic damper 1, and the like.

図６はブレース１９がブラケット１７とは反対の方向（図中矢印方向）へ力が加わった状態を示す図である。図６に示すように、地震や風などにより、ブレース１９が矢印方向の力を受けると、平板部３ａ、３ｂはブレース１９とは反対側である外側に湾曲するように変形し、外力のエネルギーを吸収する。ここで、平板部３ａは、平板部３ａと連結部５との接合部と、平板部３ａとブラケット１７との接続部６ａとの間で変形する。平板部３ｂは、平板部３ｂと連結部５との接合部と、平板部３ｂとスペーサ２５との接合部６ｂとの間で変形する。 FIG. 6 is a view showing a state in which a force is applied to the brace 19 in the direction opposite to the bracket 17 (the arrow direction in the figure). As shown in FIG. 6, when the brace 19 receives a force in the direction of an arrow due to an earthquake or a wind, the flat plate portions 3a and 3b are deformed so as to be bent outward, which is opposite to the brace 19, and the energy of the external force To absorb. Here, the flat plate portion 3 a is deformed between the joint portion between the flat plate portion 3 a and the connecting portion 5 and the connecting portion 6 a between the flat plate portion 3 a and the bracket 17. The flat plate portion 3 b is deformed between a joint portion between the flat plate portion 3 b and the connecting portion 5 and a joint portion 6 b between the flat plate portion 3 b and the spacer 25.

また、図６に示す方向にブレース１９へ力が加わると、履歴型ダンパ１は外側へ湾曲するように変形するが、履歴型ダンパ１の連結部側は、変形時に他の部位とは接触しない。すなわち、履歴型ダンパ１は、変形部が他の部位から拘束されることなく変形する。 Further, when a force is applied to the brace 19 in the direction shown in FIG. 6, the hysteretic damper 1 is deformed so as to be bent outward, but the connecting portion side of the hysteretic damper 1 does not come into contact with other parts at the time of deformation. . That is, the hysteretic damper 1 is deformed without the deformation portion being restrained from other parts.

なお、平板部３の前記変形部位の断面形状は一定でも良く、前記平板部の幅および厚さのいずれか一方又は両方を変化させた変断面であってもよい。すなわち、前記変形部位の平板部の幅や厚みを変化させ、断面積を変化させてもよい。例えば、平板部３の前記変形部位の一部に幅狭部を設ければ、平板部３へ力が加わった際に、その幅狭部を優先的に変形させることができるので、減衰力を調整することができる。また、平板部３の前記変形部位の一部に当て板等を溶接して補強すれば、平板部３へ力が加わった際に、その当て板部の変形を抑制することができるので、減衰力を調整することができる。 In addition, the cross-sectional shape of the deformed portion of the flat plate portion 3 may be constant, or may be a variable cross section in which one or both of the width and thickness of the flat plate portion are changed. That is, the cross-sectional area may be changed by changing the width and thickness of the flat plate portion of the deformed portion. For example, if a narrow portion is provided in a part of the deformation portion of the flat plate portion 3, when the force is applied to the flat plate portion 3, the narrow portion can be preferentially deformed. Can be adjusted. Further, if a contact plate or the like is welded to a part of the deformed portion of the flat plate portion 3 to reinforce, the deformation of the contact plate portion can be suppressed when a force is applied to the flat plate portion 3. The power can be adjusted.

平板部３の一部や連結部５については、部分焼き入れなどの熱処理を施してもよい。例えば、連結部５や平板部３の接合部６近傍について部分焼入れを行い、部分的に強度を上げることで、平板部３へ力が加わった際に、熱処理を行った部分の降伏を抑制し、塑性変形させる部位を特定する事ができる。 A part of the flat plate part 3 and the connecting part 5 may be subjected to heat treatment such as partial quenching. For example, by performing partial quenching in the vicinity of the joint portion 6 and the joint portion 6 of the flat plate portion 3 and partially increasing the strength, when a force is applied to the flat plate portion 3, the yield of the heat-treated portion is suppressed. The part to be plastically deformed can be specified.

このように、本実施の形態によれば、１対の平板部３と連結部５とを主な構成要素とし、これらをボルト９で接合するものであり、履歴型ダンパ１の製造時において板の曲げ加工がなく、構造が簡易である。また、平板部３のストレート部を変形させる為、湾曲部や筒体部を変形させるよりも設計が容易である。更に、履歴型ダンパ１を取り付けた状態は、ブラケット１７の厚さに平板部３の厚みとボルト９の高さ分を加えただけの全厚内におさまるため、狭小な場所でも取り付けることができる。 As described above, according to the present embodiment, the pair of flat plate portions 3 and the connecting portion 5 are the main components, and these are joined by the bolts 9. There is no bending process, and the structure is simple. Moreover, since the straight part of the flat plate part 3 is deformed, the design is easier than that of deforming the curved part or the cylindrical part. Furthermore, since the hysteretic damper 1 is attached within the entire thickness obtained by adding the thickness of the flat plate portion 3 and the height of the bolt 9 to the thickness of the bracket 17, it can be attached even in a narrow place. .

次に、第２の実施の形態について説明する。図７は第２の実施の形態に係る履歴型ダンパ３０を示す図である。以下の実施の形態において、図１に示す履歴型ダンパ１と同一の機能を果たす構成要素には、図１と同一番号を付し、重複した説明を避ける。 Next, a second embodiment will be described. FIG. 7 is a diagram showing a hysteretic damper 30 according to the second embodiment. In the following embodiment, components having the same functions as those of the hysteresis type damper 1 shown in FIG.

履歴型ダンパ３０は、平板部３ａ、３ｂのそれぞれ連結部５との接合部に、平板部３ａ、３ｂの幅方向に凹部３１ａ、３１ｂが施されている。凹部３１ａ、３１ｂは、連結部５の幅と略同一幅であり、凹部３１ａ、３１ｂへ連結部５が勘合される。平板部３ａ、３ｂと凹部３１ａ、３１ｂへ嵌合された連結部５は、貫通するボルト９、ナット１１にて固定される。 In the hysteretic damper 30, concave portions 31 a and 31 b are formed in the width direction of the flat plate portions 3 a and 3 b at the joint portions of the flat plate portions 3 a and 3 b with the connecting portion 5. The concave portions 31a and 31b have substantially the same width as the width of the connecting portion 5, and the connecting portion 5 is fitted into the concave portions 31a and 31b. The connecting portion 5 fitted to the flat plate portions 3a and 3b and the concave portions 31a and 31b is fixed by a bolt 9 and a nut 11 that pass therethrough.

履歴型ダンパ３０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。この際、連結部５は凹部３１ａ、３１ｂに嵌合されている為、変形の際に連結部５と平板部３ａ、３ｂとの間に相対するすべりがない。 When the joints 6a and 6b of the hysteretic damper 30 are joined to the structural member in the same manner as the hysteretic damper 1, and the force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy. At this time, since the connecting portion 5 is fitted in the recesses 31a and 31b, there is no slip between the connecting portion 5 and the flat plate portions 3a and 3b during deformation.

このように、第２の実施形態によれば、履歴型ダンパ３０は、履歴型ダンパ１と同様の効果を奏する。また、凹部３１と連結部５が嵌合することにより、変形の際に平板部３ａ、３ｂと連結部５との間にすべりが生じることがない。このため、同一荷重条件における平板部３の変形量が一定し、減衰性能が安定する。 Thus, according to the second embodiment, the hysteresis damper 30 has the same effect as the hysteresis damper 1. Further, since the concave portion 31 and the connecting portion 5 are fitted, slip does not occur between the flat plate portions 3a and 3b and the connecting portion 5 during deformation. For this reason, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized.

図８は、第３の実施の形態に係る履歴型ダンパ４０を示す図である。履歴型ダンパ４０は、平板部３ａ、３ｂと連結部５とが溶接により接合される。溶接は、平板部３ａ、３ｂの対向面４３ａ、４３ｂと、連結部５の側面４５ａ、４５ｂとの接触部に施される。なお、溶接方法は特定しないが、通常のアーク溶接で構わない。 FIG. 8 is a diagram illustrating a hysteresis damper 40 according to the third embodiment. In the hysteresis damper 40, the flat plate portions 3a and 3b and the connecting portion 5 are joined by welding. Welding is performed on contact portions between the opposing surfaces 43a and 43b of the flat plate portions 3a and 3b and the side surfaces 45a and 45b of the connecting portion 5. The welding method is not specified, but normal arc welding may be used.

履歴型ダンパ４０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。この際、連結部５は平板部３ａ、３ｂに溶接されている為、変形の際に連結部５と平板部３ａ、３ｂとの間に相対するすべりがない。 When the joints 6a and 6b of the hysteretic damper 40 are joined to the structural member in the same manner as the hysteretic damper 1, and the force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy. At this time, since the connecting portion 5 is welded to the flat plate portions 3a and 3b, there is no slippage between the connecting portion 5 and the flat plate portions 3a and 3b during deformation.

このように、第３の実施形態によれば、履歴型ダンパ４０は、履歴型ダンパ１と同様の効果を奏する。また、変形の際に平板部３ａ、３ｂと連結部５との間にすべりが生じることがないため、同一荷重条件における平板部３の変形量が一定し、減衰性能が安定する。更に、ボルト９、ナット１１を使用しなくともよいため、部品点数を削減できる。 Thus, according to the third embodiment, the hysteresis damper 40 has the same effect as the hysteresis damper 1. Further, since no slip occurs between the flat plate portions 3a, 3b and the connecting portion 5 during the deformation, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized. Furthermore, since it is not necessary to use the bolt 9 and the nut 11, the number of parts can be reduced.

図９は、第４の実施の形態に係る履歴型ダンパ５０を示す図である。図９（ａ）は、履歴型ダンパ５０の連結部５側から見た図であり、（ｂ）は履歴型ダンパ５０の側面図である。履歴型ダンパ５０の連結部５は、平板部３ａ、３ｂよりも幅広である。連結部５は、平板部３ａ、３ｂの幅方向両側に突出した状態で、平板部３ａ、３ｂの端部で挟まれ、溶接により固定される。溶接は、平板部３ａ、３ｂの側面５３ａ、５３ｂ、５３ｃ、５３ｄと、平板部３の幅方向へ突出した連結部５の上下面５５ａ、５５ｂとの接触部に施される。 FIG. 9 is a diagram illustrating a hysteresis damper 50 according to the fourth embodiment. FIG. 9A is a view of the hysteretic damper 50 as viewed from the connecting portion 5 side, and FIG. 9B is a side view of the hysteretic damper 50. The connecting portion 5 of the hysteretic damper 50 is wider than the flat plate portions 3a and 3b. The connecting portion 5 is sandwiched between the end portions of the flat plate portions 3a and 3b in a state of projecting on both sides in the width direction of the flat plate portions 3a and 3b, and is fixed by welding. Welding is performed on contact portions between the side surfaces 53a, 53b, 53c, 53d of the flat plate portions 3a, 3b and the upper and lower surfaces 55a, 55b of the connecting portion 5 protruding in the width direction of the flat plate portion 3.

履歴型ダンパ５０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。この際、平板部３ａ、３ｂの対向面と連結部５の側面近傍は変形部位となる為、この付近を溶接すると、熱影響により変形が安定しない恐れがある。しかし、履歴型ダンパ５０の溶接部は、平板部３ａ、３ｂの側面と、平板部３の幅方向へ突出した連結部５の上下面であり、変形を伴わない部分である為、平板部３の変形部位は、溶接による影響を受けない。 When the joints 6a and 6b of the hysteretic damper 50 are joined to the structural member in the same manner as the hysteretic damper 1, and the force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy. At this time, the opposing surfaces of the flat plate portions 3a and 3b and the vicinity of the side surface of the connecting portion 5 are deformed portions. Therefore, if the vicinity is welded, the deformation may not be stabilized due to thermal effects. However, the welded portion of the hysteretic damper 50 is the side surfaces of the flat plate portions 3a and 3b and the upper and lower surfaces of the connecting portion 5 protruding in the width direction of the flat plate portion 3, and is a portion that is not deformed. The deformation part is not affected by welding.

このように、第４の実施形態によれば、履歴型ダンパ５０は、履歴型ダンパ１と同様の効果を奏する。また、履歴型ダンパ５０の溶接部が、平板部３ａ、３ｂの変形部位とは異なる部位であるため、平板部３ａ、３ｂの変形部位は溶接による熱影響を受けることがない。このため、同一荷重条件における平板部３の変形量が一定し、減衰性能が安定する。 Thus, according to the fourth embodiment, the hysteresis damper 50 has the same effect as the hysteresis damper 1. Moreover, since the welding part of the hysteresis type damper 50 is a different part from the deformation | transformation site | part of flat plate part 3a, 3b, the deformation | transformation site | part of flat plate part 3a, 3b does not receive the heat influence by welding. For this reason, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized.

図１０は第５の実施の形態に係る履歴型ダンパ６０を示す図である。履歴型ダンパ６０は、構造部材と接合するためのボルト２７を具備している。ボルト２７は、首下長さが平板部３ａ、３ｂ間よりも長く、ボルト頭部が平板部３ａ、３ｂの間に位置し、ボルト穴７へ挿入される。履歴型ダンパ６０は、ボルト２７をボルト穴７へ挿入した状態で、平板部３ａ、３ｂと連結５とが溶接により接合される。したがって、ボルト２７は、履歴型ダンパ６０から抜け落ちない構造となっている。 FIG. 10 is a diagram showing a hysteresis damper 60 according to the fifth embodiment. The hysteretic damper 60 includes a bolt 27 for joining with a structural member. The bolt 27 has a neck length longer than that between the flat plate portions 3 a and 3 b, and a bolt head portion is positioned between the flat plate portions 3 a and 3 b and is inserted into the bolt hole 7. In the hysteretic damper 60, the flat plate portions 3a, 3b and the connection 5 are joined by welding in a state where the bolt 27 is inserted into the bolt hole 7. Therefore, the bolt 27 has a structure that does not fall off from the hysteresis damper 60.

履歴型ダンパ６０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。 When the joints 6a and 6b of the hysteretic damper 60 are joined to the structural member in the same manner as the hysteretic damper 1, and when a force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy.

このように、第５の実施形態によれば、履歴型ダンパ６０は、履歴型ダンパ１と同様の効果を奏する。また、履歴型ダンパ６０と構造部材とを取り付ける際に、ボルト２７があらかじめ挿入され、ナット２９との締結が構造部材側となるため、狭い平板部３ａ、３ｂ間でナット締結作業をする必要が無く、取り付け作業が簡便となる。 Thus, according to the fifth embodiment, the hysteresis damper 60 has the same effects as the hysteresis damper 1. Further, when the hysteretic damper 60 and the structural member are attached, the bolt 27 is inserted in advance and the fastening with the nut 29 is on the structural member side, so that it is necessary to perform a nut fastening operation between the narrow flat plate portions 3a and 3b. There is no attachment work.

図１１は、第６の実施の形態に係る履歴型ダンパ７０を示す図である。履歴型ダンパ７０の平板部３は、突出部７１ａ、７１ｂ、７１ｃ、７１ｄを具備している。突出部７１ａ、７１ｂは、平板部３ａの接合部６ａに設けられ、突出部７１ｃ、７１ｄは、平板部３ｂの接合部６ｂに設けられる。突出部７１は平板部３の幅方向へそれぞれ突出している。ボルト穴７は、それぞれの突出部７１の位置に設けられる。すなわち、ボルト穴７ａ、７ｂは突出部７１ｂに、ボルト穴７ｃ、７ｄは突出部７１ａに、ボルト穴７ｅ、７ｆは突出部７１ｄに、ボルト穴７ｇ、７ｈは突出部７１ｃに設けられる。連結部５と平板部３ａ、３ｂは溶接により接合される。 FIG. 11 is a diagram illustrating a hysteresis damper 70 according to the sixth embodiment. The flat plate portion 3 of the hysteretic damper 70 includes projecting portions 71a, 71b, 71c, 71d. The protrusions 71a and 71b are provided at the joint 6a of the flat plate portion 3a, and the protrusions 71c and 71d are provided at the joint 6b of the flat plate portion 3b. The projecting portions 71 project in the width direction of the flat plate portion 3. The bolt holes 7 are provided at the positions of the respective protrusions 71. That is, the bolt holes 7a and 7b are provided in the protruding portion 71b, the bolt holes 7c and 7d are provided in the protruding portion 71a, the bolt holes 7e and 7f are provided in the protruding portion 71d, and the bolt holes 7g and 7h are provided in the protruding portion 71c. The connecting portion 5 and the flat plate portions 3a and 3b are joined by welding.

履歴型ダンパ７０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。 When the joints 6a and 6b of the hysteretic damper 70 are joined to the structural member in the same manner as the hysteretic damper 1, and the force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy.

このように、第６の実施形態によれば、履歴型ダンパ７０は、履歴型ダンパ１と同様の効果を奏する。また、履歴型ダンパ７０を構造部材へ取り付ける際に、ボルト穴７が平板部３の幅方向の外側へ位置するため、ボルト穴７へのボルト２７の挿入やナット２９締結時の治工具の使用が容易であり、取り付け作業が簡便となる。 Thus, according to the sixth embodiment, the hysteresis damper 70 has the same effect as the hysteresis damper 1. Further, when the hysteretic damper 70 is attached to the structural member, the bolt hole 7 is located outside in the width direction of the flat plate portion 3, so that the tool 27 is used when inserting the bolt 27 into the bolt hole 7 or fastening the nut 29. Is easy and the mounting operation is simple.

図１２は、第７の実施の形態に係る履歴型ダンパ８０を示す図である。履歴型ダンパ８０は、履歴型ダンパ７０と同様に突出部７１を具備している。また、平板部３ａ、３ｂと連結部８１とが一体構造となっている。すなわち、一枚の平板を曲げ加工することで作成され、ストレート部である平板３ａ、３ｂとが平行に対向し、曲げ加工部が連結部８１となる。なお、連結部８１の形状は、平板部３ａ、３ｂが平行に保たれれば、湾曲であっても、コの字状であっても構わない。 FIG. 12 is a diagram illustrating a hysteresis damper 80 according to the seventh embodiment. Similar to the hysteresis damper 70, the hysteresis damper 80 includes a protrusion 71. Further, the flat plate portions 3a and 3b and the connecting portion 81 have an integral structure. That is, it is created by bending a single flat plate, and the flat portions 3 a and 3 b that are straight portions face each other in parallel, and the bent portion becomes the connecting portion 81. Note that the shape of the connecting portion 81 may be curved or U-shaped as long as the flat plate portions 3a and 3b are kept parallel.

履歴型ダンパ８０の接合部６ａ、６ｂを、履歴型ダンパ１と同様に構造部材へ接合し、前記構造部材から力を受けると、平板部３ａ、３ｂが弾塑性変形し、エネルギーを吸収する。この際、連結部５は平板部３ａ、３ｂと一体であるため、変形の際に平板部３と連結部５との間に相対するすべりがない。 When the joints 6a and 6b of the hysteretic damper 80 are joined to the structural member in the same manner as the hysteretic damper 1, and the force is received from the structural member, the flat plate portions 3a and 3b are elastically plastically deformed and absorb energy. At this time, since the connecting portion 5 is integral with the flat plate portions 3a and 3b, there is no slip between the flat plate portion 3 and the connecting portion 5 during deformation.

このように、第７の実施形態によれば、履歴型ダンパ８０は、履歴型ダンパ１と同様の効果を奏する。また、変形の際に、平板部３ａ、３ｂと連結部５との間にすべりが生じることがないため、同一荷重条件における平板部３の変形量が一定し、減衰性能が安定する。また、履歴型ダンパ８０を構造部材へ取り付ける際に、ボルト穴７が平板部３の幅方向の外側へ位置するため、ボルト穴７へのボルト２７の挿入やナット２９締結時の治工具の使用が容易であり、取り付け作業が簡便となる。更に、平板部３ａ、３ｂと連結部８１が一体構造であるので、平板部３ａ、３ｂと連結部８１を接合する必要が無く、部品点数を減らすことができる。 Thus, according to the seventh embodiment, the hysteresis damper 80 has the same effect as the hysteresis damper 1. Further, since no slip occurs between the flat plate portions 3a and 3b and the connecting portion 5 during the deformation, the deformation amount of the flat plate portion 3 under the same load condition is constant, and the damping performance is stabilized. Further, when the hysteretic damper 80 is attached to the structural member, the bolt hole 7 is located on the outer side in the width direction of the flat plate portion 3, so that the jig 27 is inserted into the bolt hole 7 and a tool is used when the nut 29 is fastened. Is easy and the mounting operation is simple. Furthermore, since the flat plate portions 3a and 3b and the connecting portion 81 have an integral structure, there is no need to join the flat plate portions 3a and 3b and the connecting portion 81, and the number of parts can be reduced.

以上、添付図を参照しながら、本発明の実施の形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

第１の実施の形態に係る履歴型ダンパ１の斜視図。The perspective view of the hysteresis type damper 1 which concerns on 1st Embodiment. 履歴型ダンパ１の側面図。The side view of the hysteresis type damper 1. FIG. 履歴型ダンパ１の構造部材への取り付け状態を示す斜視図。The perspective view which shows the attachment state to the structural member of the hysteresis type damper 1. FIG. 履歴型ダンパ１の構造部材への取り付け状態を示す側面図。The side view which shows the attachment state to the structural member of the hysteresis type damper 1. FIG. 履歴型ダンパ１の変形状態を示す図。The figure which shows the deformation | transformation state of the hysteresis type damper. 履歴型ダンパ１の変形状態を示す図。The figure which shows the deformation | transformation state of the hysteresis type damper. 第２の実施の形態に係る履歴型ダンパ３０の側面図。The side view of the hysteresis type damper 30 which concerns on 2nd Embodiment. 第３の実施の形態に係る履歴型ダンパ４０の側面図。The side view of the hysteresis type damper 40 which concerns on 3rd Embodiment. 第４の実施の形態に係る履歴型ダンパ５０の側面図。The side view of the hysteresis type damper 50 which concerns on 4th Embodiment. 第５の実施の形態に係る履歴型ダンパ６０の側面図。The side view of the hysteresis type damper 60 which concerns on 5th Embodiment. 第６の実施の形態に係る履歴型ダンパ７０の斜視図。The perspective view of the hysteresis type damper 70 concerning 6th Embodiment. 第７の実施の形態に係る履歴型ダンパ８０の斜視図。The perspective view of the hysteresis type damper 80 which concerns on 7th Embodiment.

Explanation of symbols

１、３０、４０、５０、６０、７０、８０………履歴型ダンパ
３ａ、３ｂ………平板部
５………連結部
６ａ、６ｂ………接合部
７ａ、７ｂ、７ｃ、７ｄ、７ｅ、７ｆ、７ｇ、７ｈ………ボルト穴
９………ボルト
１１………ナット
１３………柱
１５………梁
１７………ブラケット
１９………ブレース
２１………ボルト
２３………ナット
２５………スペーサ
２７………ボルト
２９………ナット
３１ａ、３１ｂ………凹部
４１ａ、４１ｂ、４１ｃ、４１ｄ………溶接部
４３ａ、４３ｂ………対向面
４５ａ、４５ｂ………側面
５１ａ、５１ｂ、５１ｃ、５１ｄ………溶接部
５３ａ、５３ｂ、５３ｃ、５３ｄ………側面
５５ａ、５５ｂ………上下面
７１………突出部
８１………連結部 1, 30, 40, 50, 60, 70, 80 ......... Historical dampers 3a, 3b ......... Plate portion 5 ......... Connecting portions 6a, 6b ......... Joint portions 7a, 7b, 7c, 7d, 7e , 7f, 7g, 7h ......... Bolt hole 9 ......... Bolt 11 ......... Nut 13 ......... Column 15 ...... Beam 17 ......... Bracket 19 ......... Brace 21 ......... Bolt 23 ......... Nut 25 ......... Spacer 27 ......... Bolt 29 ......... Nuts 31a, 31b ......... Recesses 41a, 41b, 41c, 41d ......... Welding portions 43a, 43b ......... Faces 45a, 45b ......... Side 51a, 51b, 51c, 51d ......... welded parts 53a, 53b, 53c, 53d ..... side surfaces 55a, 55b ....... upper and lower surfaces 71 ....... projection part 81 ..... connecting part

Claims

A pair of flat plate portions provided opposite to each other, each having a different length;
A connecting portion for connecting an end portion of the flat plate portion;
A joining portion joined to the first structural member and the second structural member respectively at the other end of the pair of flat plate portions;
Using a hysteretic damper with
A first structural member provided at an intersection of the column and the beam and extending in a diagonal direction of a quadrangle composed of the column and the beam; and a first structural member provided on the diagonal line of the extended position of the first structural member 2 structural members are connected to each flat plate portion of the pair of hysteretic dampers provided on an extension line of the second structural member,
The second structural member has a smaller outer dimension than the first structural member, and a spacer is provided between the second structural member and the flat plate portion,
When the second structural member receives a force in the direction of the first structural member, the flat plate portion is deformed so as to curve inward that is the direction of the second structural member,
When the second structural member receives a force in a direction opposite to the first structural member, the flat plate portion is deformed so as to be bent outward in the direction opposite to the second structural member. Damper structure.

Wherein the flat plate portion, a damper structure according to claim 1 wherein characterized in that the recess in which the coupling portion is fitted is provided.

The joining portion has a projecting portion wider than the flat plate portion, and is joined to the first structural member and the second structural member by a bolt hole provided in the projecting portion. The damper structure according to claim 1 or 2 .