JP6720702B2 - Energy absorbing device, earthquake resistant wall and seismic isolation structure - Google Patents

Energy absorbing device, earthquake resistant wall and seismic isolation structure Download PDF

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JP6720702B2
JP6720702B2 JP2016112006A JP2016112006A JP6720702B2 JP 6720702 B2 JP6720702 B2 JP 6720702B2 JP 2016112006 A JP2016112006 A JP 2016112006A JP 2016112006 A JP2016112006 A JP 2016112006A JP 6720702 B2 JP6720702 B2 JP 6720702B2
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energy absorbing
absorbing device
deformable
deformation
deforming
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JP2017219065A (en
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清水　信孝
信孝 清水
佐藤　圭一
圭一 佐藤
綾那 伊藤
綾那 伊藤
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Nippon Steel Corp
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Description

本発明は、エネルギ吸収デバイス、耐震壁及び免震構造に関する。 The present invention relates to an energy absorbing device, a seismic wall, and a seismic isolation structure.

下記特許文献１には、塑性変形されることによりエネルギを吸収することが可能とされたエネルギ吸収デバイス（補強用斜め材）が開示されている。補強用斜め材は、長尺状の板材がその長手方向を軸方向として捩られることによって形成されており、この補強用斜め材は、建物の柱材と梁材との間に斜めに架け渡されている。そして、建物に地震による荷重が入力されて、補強用斜め材において捩られた部分が塑性変形されることで、建物に入力された地震エネルギを吸収することが可能となっている。 Patent Document 1 below discloses an energy absorbing device (oblique member for reinforcement) capable of absorbing energy by being plastically deformed. The reinforcing diagonal member is formed by twisting a long plate material with its longitudinal direction as the axial direction, and the diagonal member for reinforcement is laid diagonally between the pillar and beam members of the building. Has been done. Then, when a load due to an earthquake is input to the building and the twisted portion of the reinforcing diagonal member is plastically deformed, it is possible to absorb the seismic energy input to the building.

なお、塑性変形されることによりエネルギを吸収することが可能とされたエネルギ吸収デバイスとしては、上記特許文献１に記載されたものの他に、車両の分野では下記特許文献２に記載されたもの等が知られている。 As an energy absorbing device capable of absorbing energy by being plastically deformed, in addition to the device described in Patent Document 1 described above, in the field of vehicles, a device described in Patent Document 2 below, and the like. It has been known.

特開２０１０−４７９４８号公報JP, 2010-47948, A 特開２００９−１１３６６２号公報JP, 2009-113662, A

ところで、塑性変形されることでエネルギを吸収することが可能とされたエネルギ吸収デバイスでは、入力された荷重に対してエネルギを安定して吸収できることが望ましい。 By the way, in an energy absorption device capable of absorbing energy by being plastically deformed, it is desirable that energy can be stably absorbed with respect to an input load.

本発明は上記事実を考慮し、入力された荷重に対してエネルギを安定して吸収することができるエネルギ吸収デバイス、耐震壁及び免震構造を得ることが目的である。 In consideration of the above facts, an object of the present invention is to obtain an energy absorbing device, a seismic resistant wall, and a seismic isolation structure that can stably absorb energy against an input load.

本発明の第１態様のエネルギ吸収デバイスは、変形軸線の方向に作用する荷重に対して変形するエネルギ吸収デバイスであって、一の部材が接続される第１接続部と、他の部材が接続される第２接続部と、前記第１接続部と前記第２接続部との間に設けられ、前記変形軸線に沿って該変形軸線まわりに一方側へ捩れている第１変形部と、前記第１接続部と前記第２接続部との間に設けられていると共に前記第１変形部と前記変形軸線の軸方向につながれ、前記変形軸線に沿って該変形軸線まわりに他方側へ捩れている第２変形部と、を有し、前記変形軸線の軸方向への荷重によって、前記第１接続部と前記第２接続部との前記変形軸線の軸方向への相対位置が変化されることで、前記第１変形部及び前記第２変形部が塑性変形されてエネルギを吸収するエネルギ吸収部と、を備えている。 An energy absorbing device according to a first aspect of the present invention is an energy absorbing device that deforms with respect to a load acting in a direction of a deformation axis, and a first connecting portion to which one member is connected and another member to be connected. A second connecting portion, a first deforming portion provided between the first connecting portion and the second connecting portion, and twisted to one side around the deformation axis along the deformation axis; It is provided between the first connecting portion and the second connecting portion, is connected in the axial direction of the first deforming portion and the deforming axis line, and is twisted to the other side around the deforming axis line along the deforming axis line. And a second deformable portion that is present, and a relative position of the first connecting portion and the second connecting portion in the axial direction of the deformable axis is changed by a load in the axial direction of the deformable axis. Then, the first deformable portion and the second deformable portion are plastically deformed to absorb energy, and an energy absorbing portion.

第１態様のエネルギ吸収デバイスによれば、一の部材及び他の部材が当該エネルギ吸収デバイスの第１接続部及び第２接続部にそれぞれ接続される。そして、一の部材と他の部材との間に変形軸線の軸方向への荷重が作用されて、第１接続部と第２接続部との相対位置が変化されると、エネルギ吸収デバイスの第１変形部及び第２変形部が塑性変形される。ここで、第１態様のエネルギ吸収デバイスでは、第１変形部が捩られている方向と第２変形部の捩られている方向とが反対方向とされている。当該構成とすることにより、第１変形部と第２変形部との間の部位が変形軸線のまわりに回転しながら、当該第１変形部及び第２変形部が変形される。これにより、上記入力された荷重に対して、エネルギ吸収デバイスが発生させるエネルギ吸収荷重（第１接続部と第２接続部との相対位置の変化を妨げる方向に作用する荷重）を安定させることができる。 According to the energy absorbing device of the first aspect , the one member and the other member are connected to the first connecting portion and the second connecting portion of the energy absorbing device, respectively. Then, when a load in the axial direction of the deformation axis is applied between the one member and the other member and the relative position of the first connection portion and the second connection portion is changed, the first position of the energy absorbing device is changed. The first deformed portion and the second deformed portion are plastically deformed. Here, in the energy absorbing device of the first aspect , the direction in which the first deformable portion is twisted is opposite to the direction in which the second deformable portion is twisted. With this configuration, the first deformable portion and the second deformable portion are deformed while the portion between the first deformable portion and the second deformable portion rotates around the deformable axis. This makes it possible to stabilize the energy absorption load generated by the energy absorption device (the load acting in the direction that prevents the change in the relative position between the first connection portion and the second connection portion) with respect to the input load. it can.

本発明の第２態様のエネルギ吸収デバイスは、第１態様のエネルギ吸収デバイスにおいて、前記第１変形部及び前記第２変形部のまわりには、該第１変形部及び該第２変形部が変形される際に該第１変形部及び該第２変形部が前記変形軸線と交差する方向へ座屈することを抑制する座屈拘束部材が設けられている。 An energy absorbing device according to a second aspect of the present invention is the energy absorbing device according to the first aspect , wherein the first deformable portion and the second deformable portion are deformed around the first deformable portion and the second deformable portion. A buckling restraint member is provided that suppresses buckling of the first deformable portion and the second deformable portion in a direction intersecting with the deformable axis when the buckling is performed.

第２態様のエネルギ吸収デバイスによれば、第１変形部及び第２変形部のまわりに座屈拘束部材が設けられていることにより、第１変形部及び第２変形部が変形される際に、当該第１変形部及び第２変形部が座屈することを抑制することができる。その結果、エネルギ吸収デバイスが発生させるエネルギ吸収荷重を安定させることができる。 According to the energy absorbing device of the second aspect , since the buckling restraint member is provided around the first deforming portion and the second deforming portion, when the first deforming portion and the second deforming portion are deformed. The buckling of the first deformable portion and the second deformable portion can be suppressed. As a result, the energy absorption load generated by the energy absorption device can be stabilized.

本発明の第３態様のエネルギ吸収デバイスは、第２態様のエネルギ吸収デバイスにおいて、前記第１変形部と前記第２変形部とは、前記座屈拘束部材に対して前記変形軸線のまわりに回転変位することが可能とされたつなぎ部を介してつながれている。 An energy absorbing device according to a third aspect of the present invention is the energy absorbing device according to the second aspect , wherein the first deformable portion and the second deformable portion rotate about the deformation axis with respect to the buckling restraint member. It is connected via a connecting portion that can be displaced.

第３態様のエネルギ吸収デバイスによれば、第１変形部と第２変形部とがつなぎ部を介してつながれており、このつなぎ部は、座屈拘束部材に対して変形軸線のまわりに回転変位することが可能とされている。これにより、座屈拘束部材の質量等の影響を受け難くしつつ、第１変形部及び第２変形部を変形させることが可能となる。 According to the energy absorbing device of the third aspect , the first deforming portion and the second deforming portion are connected via the joint portion, and the joint portion is rotationally displaced about the deformation axis with respect to the buckling restraint member. It is possible to do. This makes it possible to deform the first deformable portion and the second deformable portion while being less likely to be affected by the mass of the buckling restraint member.

本発明の第４態様のエネルギ吸収デバイスは、第２態様のエネルギ吸収デバイスにおいて、前記第１変形部と前記第２変形部とは、前記座屈拘束部材と共に前記変形軸線のまわりに回転変位することが可能とされたつなぎ部を介してつながれている。 An energy absorbing device according to a fourth aspect of the present invention is the energy absorbing device according to the second aspect , wherein the first deformation portion and the second deformation portion are rotationally displaced together with the buckling restraint member around the deformation axis. It is connected through a connecting part that has been made possible.

第４態様のエネルギ吸収デバイスによれば、第１変形部と第２変形部とがつなぎ部を介してつながれており、このつなぎ部は、座屈拘束部材と共に変形軸線のまわりに回転変位することが可能とされている。これにより、座屈拘束部材が回転されることによって生じる慣性力を利用して、エネルギ吸収デバイスが発生させるエネルギ吸収荷重を増やすことができる。 According to the energy absorbing device of the fourth aspect , the first deformable portion and the second deformable portion are connected via the joint portion, and the joint portion is rotationally displaced around the deformation axis together with the buckling restraint member. Is possible. Thereby, the energy absorption load generated by the energy absorption device can be increased by utilizing the inertial force generated by the rotation of the buckling restraint member.

本発明の第５態様の耐震壁は、建物の水平方向に間隔をあけて建物の上下方向に延在する一対の縦材と、前記一対の縦材の上端部及び下端部を建物の水平方向につなぐ一対の横材と、を有するフレーム部と、前記一対の縦材の間かつ前記一対の横材の間に配置され、前記フレーム部に入力された荷重が伝達されることで前記第１変形部及び前記第２変形部が塑性変形される第１態様〜第４態様のいずれか１態様のエネルギ吸収デバイスと、を備えている。 The earthquake-resistant wall of the fifth aspect of the present invention includes a pair of vertical members extending in the vertical direction of the building with a space in the horizontal direction of the building, and an upper end and a lower end of the pair of vertical members in the horizontal direction of the building. The frame member having a pair of horizontal members connected to each other and the pair of vertical members are arranged between the pair of vertical members and between the pair of horizontal members, and the load input to the frame unit is transmitted to the first member. deformable portion and the second deforming portion is provided with, an energy absorbing device according to any one aspect of the first to fourth embodiments to be plastically deformed.

第５態様の耐震壁を備えた建物に地震による荷重が作用すると、当該荷重がフレーム部に伝達される。また、フレーム部に伝達された荷重は、当該フレーム部の一対の縦材及び一対の横材の間に配置されたエネルギ吸収デバイスに伝達される。そして、エネルギ吸収デバイスに伝達された荷重が所定値を超えると、エネルギ吸収デバイスの第１変形部及び第２変形部が塑性変形される。これにより、耐震壁に伝達された荷重によるエネルギを吸収することができる。 When a load due to an earthquake acts on a building including the earthquake-resistant wall of the fifth aspect, the load is transmitted to the frame portion. Further, the load transmitted to the frame portion is transmitted to the energy absorbing device arranged between the pair of vertical members and the pair of horizontal members of the frame portion. Then, when the load transmitted to the energy absorbing device exceeds a predetermined value, the first deforming portion and the second deforming portion of the energy absorbing device are plastically deformed. Thereby, the energy by the load transmitted to the earthquake-resistant wall can be absorbed.

本発明の第６態様の免震構造は、建物の上部構造物と下部構造物との間に設けられ、前記上部構造物を前記下部構造物に対して水平方向に移動可能に支持する支持部と、前記上部構造物が前記下部構造物に対して水平方向に移動されることで前記第１変形部及び前記第２変形部が塑性変形される第１態様〜第４態様のいずれか１態様のエネルギ吸収デバイスと、を備えている。 A seismic isolation structure according to a sixth aspect of the present invention is provided between a superstructure and a substructure of a building, and supports the superstructure so that the superstructure is horizontally movable with respect to the substructure. When any one aspect of the first to fourth embodiments that the upper structure is the first deforming portion and the second deforming portion by being moved in the horizontal direction with respect to the lower structure is plastically deformed Energy absorbing device.

第６態様の免震構造によれば、上部構造物が支持部によって下部構造物に対して水平方向に移動可能に支持されている。この上部構造物及び下部構造物を備えた建物に地震等による荷重が作用して、上部構造物が下部構造物に対して水平方向へ移動されると、エネルギ吸収デバイスの第１変形部及び第２変形部が塑性変形される。これにより、建物に加わる地震等のエネルギを吸収することができる。 According to the seismic isolation structure of the sixth aspect , the upper structure is supported by the supporting portion so as to be movable in the horizontal direction with respect to the lower structure. When a load such as an earthquake acts on a building including the upper structure and the lower structure, and the upper structure is moved in the horizontal direction with respect to the lower structure, the first deformed portion and the 2 The deformed portion is plastically deformed. This makes it possible to absorb energy such as an earthquake applied to the building.

本発明に係るエネルギ吸収デバイス、耐震壁及び免震構造は、入力された荷重に対するエネルギを安定して吸収することができる、という優れた効果を有する。 INDUSTRIAL APPLICABILITY The energy absorbing device, the earthquake-resistant wall, and the seismic isolation structure according to the present invention have an excellent effect of being able to stably absorb energy with respect to an input load.

第１実施形態の耐震壁を示す側面図である。It is a side view which shows the earthquake-resistant wall of 1st Embodiment. 図１Ａに示された耐震壁に荷重Ｑが入力され、当該耐震壁に設けられたエネルギ吸収デバイスに変形軸線の軸方向への荷重Ｐが作用する状態を示す側面図である。FIG. 1B is a side view showing a state in which a load Q is input to the seismic wall shown in FIG. 1A and a load P in the axial direction of the deformation axis acts on the energy absorbing device provided on the seismic wall. 第２実施形態の耐震壁を示す側面図である。It is a side view which shows the earthquake-resistant wall of 2nd Embodiment. 図２Ａに示された耐震壁に荷重Ｑが入力され、当該耐震壁に設けられたエネルギ吸収デバイスに変形軸線の軸方向への荷重Ｐが作用する状態を示す側面図である。FIG. 2B is a side view showing a state where a load Q is input to the earthquake-resistant wall shown in FIG. 2A and a load P in the axial direction of the deformation axis acts on the energy absorbing device provided on the earthquake-resistant wall. 第３実施形態の耐震壁を示す側面図である。It is a side view which shows the earthquake-resistant wall of 3rd Embodiment. 図３Ａに示された耐震壁に荷重Ｑが入力され、当該耐震壁に設けられたエネルギ吸収デバイスに変形軸線の軸方向への荷重Ｐが作用する状態を示す側面図である。FIG. 3B is a side view showing a state where a load Q is input to the seismic wall shown in FIG. 3A and a load P in the axial direction of the deformation axis acts on the energy absorbing device provided on the seismic wall. 実施形態の免震構造が適用された建物の下部を示す側面図である。It is a side view showing a lower part of a building to which the seismic isolation structure of the embodiment is applied. 図４Ａに示された建物に荷重Ｑが入力され、当該建物に設けられたエネルギ吸収デバイスに変形軸線の軸方向への荷重Ｐが作用する状態を示す側面図である。FIG. 4B is a side view showing a state where a load Q is input to the building shown in FIG. 4A and a load P in the axial direction of the deformation axis acts on the energy absorbing device provided in the building. （Ａ）（Ｂ）及び（Ｃ）は、第１実施形態に係るエネルギ吸収デバイスをそれぞれ示す正面図、側面図及び背面図である。(A) (B) and (C) are a front view, a side view, and a rear view, respectively, showing the energy absorbing device according to the first embodiment. 図５（Ｃ）に示された６−６線に沿って切断したエネルギ吸収デバイスを示す断面図である。It is sectional drawing which shows the energy absorption device cut|disconnected along the line 6-6 shown in FIG.5(C). 第２実施形態のエネルギ吸収デバイスを示す図６に対応する断面図である。It is sectional drawing corresponding to FIG. 6 which shows the energy absorption device of 2nd Embodiment. 第３実施形態のエネルギ吸収デバイスを示す図６に対応する断面図である。It is sectional drawing corresponding to FIG. 6 which shows the energy absorption device of 3rd Embodiment. （Ａ）及び（Ｂ）は、第４実施形態に係るエネルギ吸収デバイスをそれぞれ示す側面図及び背面図である。(A) And (B) is a side view and a back view which respectively show the energy absorption device which concerns on 4th Embodiment. 図９に示された１０−１０線に沿って切断したエネルギ吸収デバイスを示す断面図である。FIG. 10 is a sectional view showing the energy absorbing device taken along line 10-10 shown in FIG. 9. （Ａ）及び（Ｂ）は、第５実施形態に係るエネルギ吸収デバイスをそれぞれ示す側面図及び背面図である。(A) And (B) is a side view and a back view showing an energy absorption device concerning a 5th embodiment, respectively. 図１１に示された１２−１２線に沿って切断したエネルギ吸収デバイスを示す断面図である。FIG. 12 is a sectional view showing the energy absorbing device taken along line 12-12 shown in FIG. 11. エネルギ吸収デバイスのＣＡＥ解析を行った際の解析条件を説明するための説明図である。It is explanatory drawing for demonstrating the analysis conditions at the time of performing CAE analysis of an energy absorption device. ＣＡＥ解析を行ったエネルギ吸収デバイスの各部の寸法等を示す表である。It is a table which shows the size etc. of each part of the energy absorption device which performed CAE analysis. ＣＡＥ解析により得られた圧縮及び引張荷重に対するエネルギ吸収荷重を示すグラフである。It is a graph which shows the energy absorption load with respect to the compressive and tensile load obtained by CAE analysis. ＣＡＥ解析により得られた圧縮及び引張荷重に対するエネルギ吸収荷重を示すグラフである。It is a graph which shows the energy absorption load with respect to the compressive and tensile load obtained by CAE analysis. ＣＡＥ解析により得られた繰り返し荷重に対するエネルギ吸収荷重を示すグラフである。It is a graph which shows the energy absorption load with respect to the repeating load obtained by CAE analysis. ＣＡＥ解析により得られた繰り返し荷重に対するエネルギ吸収荷重を示すグラフである。It is a graph which shows the energy absorption load with respect to the repeating load obtained by CAE analysis. （Ａ）は圧縮荷重が作用した際の第１変形部に生じる応力を示す側面図であり、（Ｂ）は引張荷重が作用した際の第１変形部に生じる応力を示す側面図である。(A) is a side view showing the stress generated in the first deformed portion when a compressive load is applied, and (B) is a side view showing the stress generated in the first deformed portion when a tensile load is applied. （Ａ）は圧縮荷重が作用した際の第１変形部に生じる応力を示す正面図であり、（Ｂ）は引張荷重が作用した際の第１変形部に生じる応力を示す正面図である。(A) is a front view showing a stress generated in the first deformed portion when a compressive load is applied, and (B) is a front view showing a stress generated in the first deformed portion when a tensile load is applied. （Ａ）は圧縮荷重が作用した際の第１変形部に生じる応力を示す側面図であり、（Ｂ）は引張荷重が作用した際の第１変形部に生じる応力を示す側面図である。(A) is a side view showing the stress generated in the first deformed portion when a compressive load is applied, and (B) is a side view showing the stress generated in the first deformed portion when a tensile load is applied. （Ａ）は圧縮荷重が作用した際の第１変形部に生じる応力を示す正面図であり、（Ｂ）は引張荷重が作用した際の第１変形部に生じる応力を示す正面図である。(A) is a front view showing a stress generated in the first deformed portion when a compressive load is applied, and (B) is a front view showing a stress generated in the first deformed portion when a tensile load is applied. （Ａ）及び（Ｂ）は、圧縮荷重が作用した際の第１変形部の寸法変化を示す正面図である。(A) And (B) is a front view which shows the dimensional change of the 1st deformation part when a compressive load acts. （Ａ）及び（Ｂ）は、引張荷重が作用した際の第１変形部の寸法変化を示す正面図である。(A) And (B) is a front view which shows the dimensional change of the 1st deformation part when a tensile load acts.

図１Ａ〜図６を用いて本発明の第１実施形態、第２実施形態及び第３実施形態に係る耐震壁、免震構造及び第１実施形態に係るエネルギ吸収デバイスについて説明する。 1A to 6, the seismic resistant wall according to the first embodiment, the second embodiment and the third embodiment of the present invention, the seismic isolation structure, and the energy absorbing device according to the first embodiment will be described.

（第１実施形態に係る耐震壁）
図１Ａに示されるように、第１実施形態に係る耐震壁１４は、矩形枠状に形成されたフレーム部１６と、フレーム部１６内に配置された長尺状の連結部材１８、２０及びブロック状の連結部材２２と、連結部材２０と連結部材２２との間に設けられたエネルギ吸収デバイス５０と、を含んで構成されている。 (Shockproof wall according to the first embodiment)
As shown in FIG. 1A, the earthquake-resistant wall 14 according to the first embodiment includes a frame portion 16 formed in a rectangular frame shape, and elongated connecting members 18 and 20 and blocks arranged in the frame portion 16. The energy absorbing device 50 is provided between the connecting member 20 and the connecting member 22. The energy absorbing device 50 is provided between the connecting member 20 and the connecting member 22.

フレーム部１６は、建物の水平方向Ｈに間隔をあけて建物の上下方向Ｖに延在する一対の縦材２４と、一対の縦材２４の上端部及び下端部を建物の水平方向Ｈにつなぐ一対の横材２６と、を備えている。一対の縦材２４及び一対の横材２６としては、角形鋼管、溝形鋼、山形鋼、Ｈ形鋼及びＩ形鋼等の形鋼が用いられている。そして、一対の縦材２４と一対の横材２６とは、溶接や図示しない締結部材を介して接合されている。なお、縦材２４及び横材２６は、形鋼に限らず、溶接組立された鋼部材、薄板軽量形鋼による部材、木製の部材などであってもよい。また、建物の最下階に用いられる耐震壁においては、一対の縦材２４の下端部を建物の基礎に接続することにより、フレーム部１６の下端部に配置された横材２６の機能を建物の基礎にもたせてもよい。 The frame portion 16 connects a pair of vertical members 24 extending in the vertical direction V of the building with a space in the horizontal direction H of the building and the upper end and the lower end of the pair of vertical members 24 in the horizontal direction H of the building. And a pair of cross members 26. As the pair of vertical members 24 and the pair of horizontal members 26, section steels such as square steel pipes, channel steels, chevron steels, H-section steels and I-section steels are used. The pair of vertical members 24 and the pair of horizontal members 26 are joined together by welding or a fastening member (not shown). The vertical members 24 and the horizontal members 26 are not limited to shaped steel, and may be welded and assembled steel members, thin lightweight steel members, wooden members, or the like. In addition, in the earthquake-resistant wall used on the lowest floor of the building, by connecting the lower end portions of the pair of vertical members 24 to the foundation of the building, the function of the horizontal member 26 arranged at the lower end portion of the frame portion 16 is increased. You may put it on the basis of.

連結部材１８は建物の水平方向Ｈ及び上下方向Ｖに対して傾斜された状態で延在されている。この連結部材１８の下端部は建物の下方側に配置された横材２６の長手方向の中間部に接合されており、連結部材１８の上端部は後述する連結部材２０の上端部に接合されている。また、連結部材２０は建物の上下方向Ｖに延在されている。この連結部材２０の下端部は建物の下方側に配置された横材２６の長手方向の中間部に接合されており、連結部材２０の上端部は建物の上方側に配置された横材２６と離間している。さらに、連結部材２２は、建物の上方側に配置された横材２６の長手方向の略中央部に接合されている。 The connecting member 18 extends in a state of being inclined with respect to the horizontal direction H and the vertical direction V of the building. The lower end of the connecting member 18 is joined to the longitudinal middle portion of the cross member 26 arranged on the lower side of the building, and the upper end of the connecting member 18 is joined to the upper end of the connecting member 20 described later. There is. Further, the connecting member 20 extends in the vertical direction V of the building. The lower end of the connecting member 20 is joined to the longitudinal middle portion of the cross member 26 arranged on the lower side of the building, and the upper end of the connecting member 20 is connected to the cross member 26 arranged on the upper side of the building. It is separated. Further, the connecting member 22 is joined to a substantially central portion in the longitudinal direction of the cross member 26 arranged on the upper side of the building.

連結部材２０の上端部と連結部材２２とは、エネルギ吸収デバイス５０を介して建物の水平方向Ｈにつながれている。これにより、エネルギ吸収デバイス５０の変形軸線の軸方向と建物の水平方向Ｈとが一致するようになっている。ここで、エネルギ吸収デバイス５０と連結部材２０、２２の間には、耐震壁１４の構面内で回転可能なピン５１が設けられ（エネルギ吸収デバイス５０と連結部材２０、２２とがピン５１を介して接合され）、エネルギ吸収デバイス５０に曲げが作用しない構成となっている。なお、エネルギ吸収デバイス５０は、フレーム部１６の形状等に応じて、建物の上下方向Ｖが変形軸線の軸方向となるように配置されていてもよい。この場合、連結部材１８、２０、２２を一対の縦材２４にそれぞれ接合すればよい。 The upper end of the connecting member 20 and the connecting member 22 are connected to each other in the horizontal direction H of the building via the energy absorbing device 50. As a result, the axial direction of the deformation axis of the energy absorbing device 50 and the horizontal direction H of the building coincide with each other. Here, between the energy absorbing device 50 and the connecting members 20 and 22, there is provided a pin 51 that is rotatable within the structural surface of the earthquake-resistant wall 14 (the energy absorbing device 50 and the connecting members 20 and 22 form the pin 51. And the bending is not applied to the energy absorbing device 50. The energy absorbing device 50 may be arranged such that the vertical direction V of the building is the axial direction of the deformation axis, depending on the shape of the frame portion 16 and the like. In this case, the connecting members 18, 20, 22 may be joined to the pair of vertical members 24, respectively.

そして、図１Ｂに示されるように、地震による外力Ｑが耐震壁１４に入力されて、フレーム部１６が略平行四辺形状に変形されると、連結部材２０の上端部と連結部材２２との間隔が変化する。これにより、エネルギ吸収デバイス５０の一部が軸方向に作用する力Ｐを受けて変形することで、耐震壁１４に入力された地震エネルギを吸収することが可能となっている。 Then, as shown in FIG. 1B, when the external force Q due to the earthquake is input to the earthquake-resistant wall 14 and the frame portion 16 is deformed into a substantially parallelogram shape, the gap between the upper end portion of the connecting member 20 and the connecting member 22. Changes. As a result, part of the energy absorbing device 50 receives the force P acting in the axial direction and is deformed, so that the seismic energy input to the earthquake-resistant wall 14 can be absorbed.

（第２実施形態に係る耐震壁）
図２Ａに示されるように、第２実施形態に係る耐震壁２８は、矩形枠状に形成されたフレーム部１６と、フレーム部１６の内部に配置された単一の斜材３０と、斜材３０とフレーム部１６との間に設けられた一対のエネルギ吸収デバイス５０と、を含んで構成されている。 (Shockproof wall according to the second embodiment)
As shown in FIG. 2A, the earthquake-resistant wall 28 according to the second embodiment includes a frame portion 16 formed in a rectangular frame shape, a single diagonal member 30 arranged inside the frame portion 16, and a diagonal member. 30 and the pair of energy absorbing devices 50 provided between the frame portion 16 and the frame portion 16.

斜材３０は、円形鋼管等を用いて構成されており、この斜材３０は、一対の縦材２４及び一対の横材２６との間に建物の水平方向Ｈ及び上下方向Ｖに対して傾斜された状態で配置されている。この斜材３０の一方側の端部は、エネルギ吸収デバイス５０を介して一方の縦材２４と一方の横材２６との接合部の近傍に接続されており、斜材３０の他方側の端部は、エネルギ吸収デバイス５０を介して他方の縦材２４と他方の横材２６との接合部の近傍に接続されている。そして、図２Ｂに示されるように、地震による荷重Ｑが耐震壁２８に入力されて、フレーム部１６が略平行四辺形状に変形された際に、斜材３０とフレーム部１６との間に設けられた一対のエネルギ吸収デバイス５０の一部が変形軸線の軸方向への荷重Ｐを受けて変形することで、耐震壁２８に入力された地震エネルギを吸収することが可能となっている。 The diagonal member 30 is configured by using a circular steel pipe or the like, and the diagonal member 30 is inclined between the pair of vertical members 24 and the pair of horizontal members 26 with respect to the horizontal direction H and the vertical direction V of the building. It is arranged in a closed state. One end of this diagonal member 30 is connected to the vicinity of the joint between one vertical member 24 and one horizontal member 26 via the energy absorbing device 50, and the other end of the diagonal member 30 is connected. The section is connected to the vicinity of the joint between the other vertical member 24 and the other horizontal member 26 via the energy absorbing device 50. Then, as shown in FIG. 2B, when a load Q due to an earthquake is input to the earthquake-resistant wall 28 and the frame portion 16 is deformed into a substantially parallelogram shape, it is provided between the diagonal member 30 and the frame portion 16. Part of the pair of energy absorbing devices 50 thus formed receives the load P in the axial direction of the deformation axis and is deformed, whereby the seismic energy input to the earthquake resistant wall 28 can be absorbed.

（第３実施形態に係る耐震壁）
図３Ａに示されるように、第３実施形態に係る耐震壁３２は、第２実施形態の耐震壁２８と同様の構成のフレーム部１６と、フレーム部１６内に設けられた一対の第１斜材３４及び一対の第２斜材３６と、一対の第１斜材３４の間及び一対の第２斜材３６の間にそれぞれ設けられた一対のエネルギ吸収デバイス５０と、を含んで構成されている。 (Shockproof wall according to the third embodiment)
As shown in FIG. 3A, an earthquake-resistant wall 32 according to the third embodiment includes a frame portion 16 having the same configuration as the earthquake-resistant wall 28 according to the second embodiment, and a pair of first slopes provided in the frame portion 16. And a pair of second diagonal members 36, and a pair of energy absorbing devices 50 provided between the pair of first diagonal members 34 and between the pair of second diagonal members 36, respectively. There is.

第１斜材３４及び第２斜材３６は、円形鋼管等を用いて構成されている。一方の第１斜材３４の一方側の端部は、一方の縦材２４の上下方向の中央部の近傍に接続されており、他方の第１斜材３４の一方側の端部は、他方の縦材２４と他方の横材２６との接合部の近傍に接続されている。また、一方の第１斜材３４の他方側の端部と他方の第１斜材３４の他方側の端部とは、エネルギ吸収デバイス５０を介してつながれている。 The first diagonal member 34 and the second diagonal member 36 are configured by using a circular steel pipe or the like. One end of one first diagonal member 34 is connected to the vicinity of the vertical center of one vertical member 24, and one end of the other first diagonal member 34 is connected to the other. Is connected in the vicinity of the joint between the vertical member 24 and the other horizontal member 26. The other end of the one first diagonal member 34 and the other end of the other first diagonal member 34 are connected via the energy absorbing device 50.

また、一方の第２斜材３６の一方側の端部は、一方の縦材２４の上下方向の中央部の近傍に接続されており、他方の第２斜材３６の一方側の端部は、他方の縦材２４と一方の横材２６との接合部の近傍に接続されている。また、一方の第２斜材３６の他方側の端部と他方の第２斜材３６の他方側の端部とは、エネルギ吸収デバイス５０を介してつながれている。そして、図３Ｂに示されるように、地震による荷重Ｑが耐震壁３２に入力されて、フレーム部１６が略平行四辺形状に変形された際に、一対の第１斜材３４の間及び一対の第２斜材３６の間に設けられたエネルギ吸収デバイス５０の一部が変形軸の軸線方向に作用する荷重Ｐを受けて変形されることで、耐震壁３２に入力された地震エネルギを吸収することが可能となっている。 Further, one end of the second diagonal member 36 on one side is connected to the vicinity of the central portion in the vertical direction of the one vertical member 24, and one end of the second diagonal member 36 on the other side is connected. , Is connected near the joint between the other vertical member 24 and the one horizontal member 26. The other end of the one second diagonal member 36 and the other end of the other second diagonal member 36 are connected via the energy absorbing device 50. Then, as shown in FIG. 3B, when the load Q due to the earthquake is input to the earthquake-resistant wall 32 and the frame portion 16 is deformed into a substantially parallelogram shape, a space between the pair of first diagonal members 34 and a pair of the first diagonal members 34. Part of the energy absorbing device 50 provided between the second diagonal members 36 is deformed by receiving the load P acting in the axial direction of the deformation axis, and absorbs the seismic energy input to the earthquake resistant wall 32. It is possible.

（免震構造）
図４Ａに示されるように、本実施形態の免震構造が適用された建物３８は、その基礎を構成する下部構造物４０と、下部構造物４０に支持部としてのアイソレータ４２を介して支持された上部構造物４４と、下部構造物４０と上部構造物４４との間に設けられたエネルギ吸収デバイス５０と、を含んで構成されている。 (Seismic isolation structure)
As shown in FIG. 4A, the building 38 to which the seismic isolation structure of the present embodiment is applied is supported by a lower structure 40 that forms the foundation of the building 38 and an isolator 42 as a supporting portion on the lower structure 40. The upper structure 44 and the energy absorption device 50 provided between the lower structure 40 and the upper structure 44 are included.

本実施形態のアイソレータ４２は、軸受鋼等を球状に形成した転がり支承であり、複数のアイソレータ４２が、上部構造物４４と下部構造物４０との間に建物３８の水平方向Ｈに間隔をあけて配置されている。そして、複数の転がり支障（アイソレータ４２）が転動することで、上部構造物４４が下部構造物４０に対して建物３８の水平方向Ｈに移動することが可能となっている。なお、アイソレータ４２は、すべり支承や積層ゴムなど、他の構成のアイソレータとしてもよい。 The isolator 42 of the present embodiment is a rolling bearing in which bearing steel or the like is formed in a spherical shape, and the plurality of isolators 42 are spaced between the upper structure 44 and the lower structure 40 in the horizontal direction H of the building 38. Are arranged. Then, by rolling a plurality of rolling obstacles (isolators 42), the upper structure 44 can move in the horizontal direction H of the building 38 with respect to the lower structure 40. The isolator 42 may be an isolator having another structure such as a slide bearing or laminated rubber.

また、上部構造物４４及び下部構造物４０には、エネルギ吸収デバイス５０が取付けられる連結部材４６及び連結部材４８が固定されている。この連結部材４６と連結部材４８とは、エネルギ吸収デバイス５０を介して建物３８の水平方向Ｈにつながれている。これにより、エネルギ吸収デバイス５０の変形軸線の軸方向と建物３８の水平方向Ｈとが一致するようになっている。ここで、エネルギ吸収デバイス５０と連結部材４６、４８の間には、水平面内で回転可能なピン５１が設けられ（エネルギ吸収デバイス５０と連結部材４６、４８とが、ピン５１を介して接合され）、変形軸線に直交する水平な方向（図４Ａ及び図４Ｂの紙面奥行き方向）の変形に対して、エネルギ吸収デバイス５０に曲げが作用しない構成となっている。 Further, a connecting member 46 and a connecting member 48 to which the energy absorbing device 50 is attached are fixed to the upper structure 44 and the lower structure 40. The connecting member 46 and the connecting member 48 are connected in the horizontal direction H of the building 38 via the energy absorbing device 50. As a result, the axial direction of the deformation axis of the energy absorbing device 50 and the horizontal direction H of the building 38 coincide with each other. Here, a pin 51 that is rotatable in a horizontal plane is provided between the energy absorbing device 50 and the connecting members 46 and 48 (the energy absorbing device 50 and the connecting members 46 and 48 are joined via the pin 51). ), the energy absorbing device 50 is configured so that bending does not act on deformation in the horizontal direction orthogonal to the deformation axis (the depth direction of the paper surface of FIGS. 4A and 4B).

そして、図４Ｂに示されるように、地震による外力Ｑが建物３８に入力されて、上部構造物４４が下部構造物４０に対して建物３８の水平方向Ｈに移動されることで、連結部材４６と連結部材４８との間隔が変化する。これにより、エネルギ吸収デバイス５０の一部が軸方向に作用する力Ｐを受けて変形することで、建物３８に入力された地震エネルギを吸収することが可能となっている。 Then, as shown in FIG. 4B, the external force Q due to the earthquake is input to the building 38, and the upper structure 44 is moved in the horizontal direction H of the building 38 with respect to the lower structure 40. The space between the connecting member 48 and the connecting member 48 changes. As a result, part of the energy absorbing device 50 receives the force P acting in the axial direction and is deformed, so that the seismic energy input to the building 38 can be absorbed.

（第１実施形態に係るエネルギ吸収デバイス）
次に、前述の第１実施形態の耐震壁１４、第２実施形態の耐震壁２８、第３実施形態の耐震壁３２及び実施形態の免震構造に用いられるエネルギ吸収デバイス５０について説明する。 (Energy absorption device according to the first embodiment)
Next, the seismic resistant wall 14 of the first embodiment, the seismic resistant wall 28 of the second embodiment, the seismic resistant wall 32 of the third embodiment, and the energy absorbing device 50 used for the seismic isolation structure of the embodiment will be described.

図５（Ａ）〜（Ｃ）及び図６に示されるように、エネルギ吸収デバイス５０は、その長手方向（変形軸線Ｌ１の方向）に作用する荷重に対してその一部が塑性変形することで、エネルギを吸収することが可能とされている。このエネルギ吸収デバイス５０は、板状に形成された鋼板材に捩り加工等が施されることによりその一部が捩られたエネルギ吸収デバイス本体５２と、エネルギ吸収デバイス本体５２の大部分が内部に配置される座屈拘束部材としての座屈拘束管５４と、を主要な要素として構成されている。 As shown in FIGS. 5A to 5C and 6, the energy absorbing device 50 is partially plastically deformed with respect to the load acting in the longitudinal direction (direction of the deformation axis L1). , It is possible to absorb energy. The energy absorbing device 50 has an energy absorbing device body 52 in which a part is twisted by twisting a plate-shaped steel plate material, and most of the energy absorbing device body 52 is inside. A buckling restraint tube 54 as a buckling restraint member to be arranged is configured as a main element.

図６に示されるように、エネルギ吸収デバイス本体５２は、当該エネルギ吸収デバイス本体５２を変形軸線Ｌ１の方向に二等分する二等分線Ｌ２をはさんで対称に形成されている。このエネルギ吸収デバイス本体５２の長手方向一方側の端部は、耐震壁１４、２８、３２のフレーム部１６（図１Ａ，図２Ａ及び図３Ａ参照）又は建物３８の上部構造物４４（図４Ａ参照）とつながれる第１接続部５６とされている。また、エネルギ吸収デバイス本体５２の長手方向他方側の端部は、耐震壁１４、２８、３２のフレーム部１６又は建物３８の下部構造物４０とつながれる第２接続部５８とされている。なお、第１接続部５６及び第２接続部５８には、当該第１接続部５６及び第２接続部５８へつながれる部材を締結するためのピンやボルトが挿通される挿通孔６０が形成されている。 As shown in FIG. 6, the energy absorbing device body 52 is formed symmetrically with respect to a bisector L2 that bisects the energy absorbing device body 52 in the direction of the deformation axis L1. The end portion of the energy absorbing device body 52 on one side in the longitudinal direction is provided with the frame portion 16 of the earthquake resistant walls 14, 28, 32 (see FIGS. 1A, 2A and 3A) or the upper structure 44 of the building 38 (see FIG. 4A). ) And the 1st connection part 56 connected. Further, the end portion of the energy absorbing device main body 52 on the other side in the longitudinal direction is a second connecting portion 58 that is connected to the frame portion 16 of the earthquake resistant walls 14, 28, 32 or the lower structure 40 of the building 38. The first connecting portion 56 and the second connecting portion 58 are formed with an insertion hole 60 into which a pin or a bolt for fastening a member connected to the first connecting portion 56 and the second connecting portion 58 is inserted. ing.

エネルギ吸収デバイス本体５２における第１接続部５６と第２接続部５８との間の部位は、変形軸線Ｌ１の軸方向への荷重によって第１接続部５６と第２接続部５８との変形軸線Ｌ１の軸方向への相対位置が変化されることで変形されるエネルギ吸収部としての変形部６２とされている。 A portion of the energy absorbing device main body 52 between the first connecting portion 56 and the second connecting portion 58 is deformed by the axial load of the deformable axis L1 in the axial direction. Is a deforming portion 62 as an energy absorbing portion that is deformed by changing the relative position in the axial direction.

変形部６２において第１接続部５６と二等分線Ｌ２との間の部分は、第１接続部５６側から見て反時計回り方向（矢印Ｆ１方向）に捩れている螺旋状に形成された第１変形部６４とされている。 A portion of the deforming portion 62 between the first connecting portion 56 and the bisector L2 is formed in a spiral shape that is twisted in the counterclockwise direction (arrow F1 direction) when viewed from the first connecting portion 56 side. It is the first deforming portion 64.

また、変形部６２において第２接続部５８と二等分線Ｌ２との間の部分は、第２接続部５８側から見て時計回り方向（矢印Ｆ２方向）に捩れている螺旋状に形成された第２変形部６６とされている。すなわち、第２変形部６６と第１変形部６４とは反対方向に捩れている。 Further, in the deforming portion 62, a portion between the second connecting portion 58 and the bisector L2 is formed in a spiral shape that is twisted in the clockwise direction (arrow F2 direction) when viewed from the second connecting portion 58 side. The second deformable portion 66. That is, the second deforming portion 66 and the first deforming portion 64 are twisted in opposite directions.

座屈拘束管５４は、所定の長さの鋼管材を用いて形成されており、この座屈拘束管５４は、変形軸線Ｌ１を軸方向とする円筒状に形成されている。この座屈拘束管５４の長さＡは、その内部に配置された変形される前のエネルギ吸収デバイス本体５２の第１変形部６４及び第２変形部６６が露出しない程度の長さで、かつ第１接続部５６及び第２接続部５８が露出する長さに設定されている。また、座屈拘束管５４の内径Ｃは、変形される前及び変形されたエネルギ吸収デバイス本体５２の第１変形部６４及び第２変形部６６の外径Ｄ（変形軸線Ｌ１と直交する方向への幅寸法）よりも大きな内径に設定されている。また、座屈拘束管５４の一方側の端部には、エネルギ吸収デバイス本体５２の第１接続部５６が固定部材６８を介して固定されている。 The buckling restraint tube 54 is formed by using a steel pipe material having a predetermined length, and the buckling restraint tube 54 is formed in a cylindrical shape with the deformation axis L1 as the axial direction. The length A of the buckling restraint tube 54 is such a length that the first deforming portion 64 and the second deforming portion 66 of the energy absorbing device main body 52, which is placed inside the buckling restraint tube 54 and is not deformed, are not exposed, and The length is set to expose the first connecting portion 56 and the second connecting portion 58. In addition, the inner diameter C of the buckling restraint tube 54 has an outer diameter D (in a direction orthogonal to the deformation axis L1) of the first deformed portion 64 and the second deformed portion 66 of the energy absorbing device body 52 before and after being deformed. The width is set larger than the inner diameter. The first connecting portion 56 of the energy absorbing device body 52 is fixed to the one end of the buckling restraint tube 54 via a fixing member 68.

図１Ａ及び図１Ｂに示されるように、以上説明したエネルギ吸収デバイス５０を含んで構成された耐震壁１４を備えた建物に地震による荷重Ｑが作用すると、当該荷重が耐震壁１４のフレーム部１６に伝達される。また、フレーム部１６に伝達された荷重は、連結部材１８、２０、２２を介してエネルギ吸収デバイス５０に伝達される。すると、エネルギ吸収デバイス５０には、軸方向への引張荷重又は圧縮荷重としての荷重Ｐが作用する。 As shown in FIGS. 1A and 1B, when a load Q due to an earthquake acts on a building including the earthquake-resistant wall 14 including the energy absorbing device 50 described above, the load causes the frame portion 16 of the earthquake-resistant wall 14 to act. Be transmitted to. Further, the load transmitted to the frame portion 16 is transmitted to the energy absorbing device 50 via the connecting members 18, 20, 22. Then, the load P as a tensile load or a compressive load in the axial direction acts on the energy absorbing device 50.

図６に示されるように、エネルギ吸収デバイス５０に引張荷重（荷重Ｐ（図１Ｂ参照））が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４及び第２変形部６６が塑性変形される。すなわち、第１変形部６４と第２変形部６６との境目６７が矢印Ｇ１方向（捩りが解かれる方向）へ回転されながら第１変形部６４と第２変形部６６とが引き延ばされるように塑性変形される。 As shown in FIG. 6, when a tensile load (load P (see FIG. 1B)) acts on the energy absorbing device 50, the stress generated in the first deformable portion 64 and the second deformable portion 66 exceeds the yield stress. The first deforming portion 64 and the second deforming portion 66 are plastically deformed. That is, the boundary 67 between the first deforming portion 64 and the second deforming portion 66 is rotated in the arrow G1 direction (the direction in which the twist is released) so that the first deforming portion 64 and the second deforming portion 66 are extended. It is plastically deformed.

また、エネルギ吸収デバイス５０に圧縮荷重（荷重Ｐ）が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６との境目６７が矢印Ｇ２方向（捩りが増す方向）へ回転されながら第１変形部６４と第２変形部６６とが縮められるように塑性変形される。 Further, when the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress due to the compressive load (load P) acting on the energy absorbing device 50, the first deforming portion 64 and the second deforming portion. The boundary 67 with respect to 66 is plastically deformed so that the first deformable portion 64 and the second deformable portion 66 are contracted while being rotated in the direction of arrow G2 (the direction in which the torsion increases).

以上説明したエネルギ吸収デバイス５０を備えた耐震壁１４では、エネルギ吸収デバイス５０の第１変形部６４及び第２変形部６６が繰り返し変形されることで、地震エネルギを吸収することができる。 In the earthquake-resistant wall 14 including the energy absorbing device 50 described above, the first deforming portion 64 and the second deforming portion 66 of the energy absorbing device 50 are repeatedly deformed, so that seismic energy can be absorbed.

また、図２Ａ及び図２Ｂに記載された第２実施形態に係る耐震壁２８及び図３Ａ及び図３Ｂに記載された第３実施形態に係る耐震壁３２についても同様に、エネルギ吸収デバイス５０の第１変形部６４及び第２変形部６６が繰り返し変形されることで、地震エネルギを吸収することができる。さらに、図４Ａ及び図４Ｂに示された免震構造を備えた建物３８についても同様に、エネルギ吸収デバイス５０の第１変形部６４及び第２変形部６６が繰り返し変形されることで、建物３８に入力された地震エネルギを吸収することができる。 Similarly, the earthquake-resistant wall 28 according to the second embodiment shown in FIGS. 2A and 2B and the earthquake-resistant wall 32 according to the third embodiment shown in FIGS. By repeatedly deforming the first deforming portion 64 and the second deforming portion 66, seismic energy can be absorbed. Further, in the building 38 having the seismic isolation structure shown in FIGS. 4A and 4B, similarly, the first deformation portion 64 and the second deformation portion 66 of the energy absorption device 50 are repeatedly deformed, so that the building 38. The seismic energy input to can be absorbed.

ここで、本実施形態のエネルギ吸収デバイス５０では、第１変形部６４が捩られている方向と第２変形部６６の捩られている方向とが反対方向とされている。当該構成とすることにより、第１変形部６４と第２変形部６６との境目６７が回転されながら当該第１変形部６４及び第２変形部６６が変形される。これにより、第１変形部６４及び第２変形部６６が変形される際における当該第１変形部６４及び第２変形部６６の局所的な応力の高まりが、第１変形部６４及び第２変形部６６に対応する部位が同じ方向へ捩れている構成に比べて抑制される。その結果、第１変形部６４及び第２変形部６６が繰り返し変形される際のエネルギ吸収荷重（第１接続部５６と第２接続部５８との相対位置の変化を妨げる方向に作用する荷重）を安定させることができる。 Here, in the energy absorbing device 50 of the present embodiment, the direction in which the first deforming portion 64 is twisted is opposite to the direction in which the second deforming portion 66 is twisted. With this configuration, the first deforming portion 64 and the second deforming portion 66 are deformed while the boundary 67 between the first deforming portion 64 and the second deforming portion 66 is rotated. Accordingly, the local increase in the stress of the first deforming portion 64 and the second deforming portion 66 when the first deforming portion 64 and the second deforming portion 66 are deformed is caused by the first deformable portion 64 and the second deformable portion 66. This is suppressed compared to the configuration in which the portion corresponding to the portion 66 is twisted in the same direction. As a result, the energy absorption load when the first deforming portion 64 and the second deforming portion 66 are repeatedly deformed (a load acting in a direction that prevents a change in the relative position between the first connecting portion 56 and the second connecting portion 58). Can be stabilized.

また、本実施形態では、エネルギ吸収デバイス本体５２の第１変形部６４及び第２変形部６６を覆う座屈拘束管５４を設けることにより、エネルギ吸収デバイス５０に圧縮荷重が作用した際に第１変形部６４及び第２変形部６６が座屈することを抑制することができる。これにより、エネルギ吸収デバイス５０に圧縮荷重が作用した際におけるエネルギ吸収荷重を安定させることができる。また、座屈拘束管５４の内径Ｃと第１変形部６４及び第２変形部６６の外径Ｄとのクリアランスは、変形部６２（第１変形部６４及び第２変形部６６）の外径Ｄの変化量（圧縮変形に対する拡径、引張変形に対する縮径）を考慮して、例えば、変形部６２の外径Ｄの３〜１０％の範囲など、座屈拘束の効きや部品相互の干渉の程度を考慮して適宜設定すればよい。 In addition, in the present embodiment, the buckling restraint tube 54 that covers the first deforming portion 64 and the second deforming portion 66 of the energy absorbing device main body 52 is provided, so that when the compressive load acts on the energy absorbing device 50, the first Buckling of the deforming portion 64 and the second deforming portion 66 can be suppressed. This makes it possible to stabilize the energy absorbing load when the compressive load acts on the energy absorbing device 50. The clearance between the inner diameter C of the buckling restraint tube 54 and the outer diameter D of the first deforming portion 64 and the second deforming portion 66 is the outer diameter of the deforming portion 62 (the first deforming portion 64 and the second deforming portion 66). Considering the amount of change in D (diameter expansion for compressive deformation, diameter decrease for tensile deformation), for example, the range of 3 to 10% of the outer diameter D of the deformed portion 62, the effect of buckling restraint and mutual interference of parts. It may be set as appropriate in consideration of the degree.

（第２実施形態に係るエネルギ吸収デバイス）
次に、図７を用いて本発明の第２実施形態に係るエネルギ吸収デバイス７０について説明する。なお、上記第１実施形態に係るエネルギ吸収デバイス５０と対応する部材や部分については上記実施形態と同一の符号を付してその説明を省略することがある。また、後述する第３実施形態〜第５実施形態に係るエネルギ吸収デバイスの説明においても、既に説明したエネルギ吸収デバイスの各部材や部分と同一の符号を付してその説明を省略することがある。 (Energy absorption device according to the second embodiment)
Next, an energy absorbing device 70 according to the second embodiment of the present invention will be described using FIG. 7. In addition, about the member and the part corresponding to the energy absorption device 50 which concerns on the said 1st Embodiment, the same code|symbol as the said embodiment is attached|subjected and the description may be abbreviate|omitted. Also, in the description of the energy absorbing devices according to the third to fifth embodiments described below, the same reference numerals as those of the members and portions of the energy absorbing device described above may be given and the description thereof may be omitted. ..

図７に示されるように、本実施形態のエネルギ吸収デバイス７０は、エネルギ吸収デバイス本体５２の第１変形部６４と第２変形部６６とが、円板状に形成されたつなぎ部としてのつなぎ板７２を介してつながれていることに特徴がある。すなわち、第１接続部５６及び第１変形部６４を有する部材と第２接続部５８及び第２変形部６６を有する部材とが、つなぎ板７２を介して接合されることで、エネルギ吸収デバイス本体５２が構成されている。また、つなぎ板７２は、変形軸線Ｌ１の軸方向を厚み方向とする円板状に形成されており、このつなぎ板７２の外径Ｅは、座屈拘束管５４の内径Ｃよりもやや小さな外径に形成されていると共に、変形される前及び変形された第１変形部６４及び第２変形部６６の外径Ｄよりも大きな外径に形成されている。また、つなぎ板７２の外周部における変形軸線Ｌ１の軸方向の両端部７２Ａは、面取り又はラウンドエッジ加工等が施されることで湾曲されている。また、第２接続部５８と第２変形部６６は接続板６９を介して接続されている。接続板６９は、つなぎ板７２と同様に、変形軸線Ｌ１の軸方向を厚み方向とする円板状に形成されており、この接続板６９の外径Ｊは、座屈拘束管５４の内径Ｃよりもやや小さな外径に形成されていると共に、変形される前及び変形された第１変形部６４及び第２変形部６６の外径Ｄよりも大きな外径に形成されている。図示は省略するが、接続板６９の外周部における変形軸線Ｌ１の軸方向の両端部は、面取り又はラウンドエッジ加工してもよい。座屈拘束管５４の内径Ｃとつなぎ板７２の外径Ｅとのクリアランスおよび屈拘束管５４の内径Ｃと接続板６９の外径Ｊとのクリアランスのそれぞれは、例えば、つなぎ板７２の外径Ｅおよび接続板６９の外径Ｊの０．１〜５％の範囲など、座屈拘束の効きや部品相互の干渉の程度を考慮して適宜設定すればよい。また、変形部６２（第１変形部６４、第２変形部６６）の外径Ｄとつなぎ板７２の外径Ｅとのクリアランスおよび変形部６２の外径Ｄと接続板６９の外径Ｊとのクリアランスのそれぞれは、例えば、変形部６２の外径Ｄの５〜２０％の範囲など、変形部６２の外径Ｄの変化量（圧縮変形に対する拡径、引張変形に対する縮径）を考慮して適宜設定すればよい。 As shown in FIG. 7, in the energy absorbing device 70 of the present embodiment, the first deforming portion 64 and the second deforming portion 66 of the energy absorbing device body 52 are connected as a connecting portion formed in a disc shape. It is characterized by being connected via a plate 72. That is, the member having the first connecting portion 56 and the first deforming portion 64 and the member having the second connecting portion 58 and the second deforming portion 66 are joined to each other via the connecting plate 72, so that the energy absorbing device main body is formed. 52 is configured. Further, the connecting plate 72 is formed in a disc shape whose thickness direction is the axial direction of the deformation axis L1, and the outer diameter E of the connecting plate 72 is slightly smaller than the inner diameter C of the buckling restraint tube 54. The diameter is formed, and the outer diameter is larger than the outer diameter D of the first deformed portion 64 and the second deformed portion 66 before and after being deformed. Further, both ends 72A in the axial direction of the deformation axis L1 in the outer peripheral portion of the connecting plate 72 are curved by chamfering, round edge processing or the like. The second connecting portion 58 and the second deforming portion 66 are connected via the connecting plate 69. Similar to the connecting plate 72, the connecting plate 69 is formed in a disk shape having the axial direction of the deformation axis L1 as the thickness direction, and the outer diameter J of the connecting plate 69 is the inner diameter C of the buckling restraint tube 54. The outer diameter is slightly smaller than the outer diameter D, and the outer diameter D is larger than the outer diameter D of the first deformed portion 64 and the second deformed portion 66 before and after being deformed. Although illustration is omitted, both end portions in the axial direction of the deformation axis L1 in the outer peripheral portion of the connection plate 69 may be chamfered or rounded. The clearance between the inner diameter C of the buckling restraint tube 54 and the outer diameter E of the tie plate 72 and the clearance between the inner diameter C of the buckle restraint tube 54 and the outer diameter J of the connecting plate 69 are, for example, the outer diameter of the tie plate 72, respectively. E and a range of 0.1 to 5% of the outer diameter J of the connecting plate 69 may be appropriately set in consideration of the effect of buckling restraint and the degree of interference between components. Further, the clearance between the outer diameter D of the deformable portion 62 (first deformable portion 64, second deformable portion 66) and the outer diameter E of the connecting plate 72, and the outer diameter D of the deformable portion 62 and the outer diameter J of the connecting plate 69. For each of the clearances, for example, the amount of change in the outer diameter D of the deformable portion 62 (expansion diameter for compressive deformation, contraction diameter for tensile deformation) is considered, such as a range of 5 to 20% of the outer diameter D of the deformable portion 62. And set appropriately.

以上説明した第２実施形態に係るエネルギ吸収デバイス７０では、当該エネルギ吸収デバイス７０に引張荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ板７２が矢印Ｇ１方向へ回転されながら第１変形部６４と第２変形部６６とが引き延ばされるように塑性変形される。また、エネルギ吸収デバイス７０に圧縮荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ板７２が矢印Ｇ２方向へ回転されながら第１変形部６４と第２変形部６６とが縮められるように塑性変形される。これにより、エネルギ吸収デバイス７０に入力されたエネルギを吸収することができる。 In the energy absorbing device 70 according to the second embodiment described above, when a tensile load acts on the energy absorbing device 70 and the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress, The connecting plate 72 that connects the first deforming portion 64 and the second deforming portion 66 is plastically deformed so that the first deforming portion 64 and the second deforming portion 66 are stretched while being rotated in the direction of the arrow G1. Further, when the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress due to the compressive load acting on the energy absorbing device 70, the first deforming portion 64 and the second deforming portion 66 are connected. The connecting plate 72 is plastically deformed such that the first deforming portion 64 and the second deforming portion 66 are contracted while being rotated in the direction of the arrow G2. Thereby, the energy input to the energy absorbing device 70 can be absorbed.

ここで、本実施形態のエネルギ吸収デバイス７０では、上記つなぎ板７２を有することにより、第１変形部６４及び第２変形部６６が変形される際に、当該第１変形部６４及び第２変形部６６が座屈拘束管５４の内周面に当接することを抑制し、変形部６２（第１変形部６４及び第２変形部６６）と座屈拘束管５４の接触による摺動抵抗を低減することができる。また、つなぎ板７２の外周部における変形軸線Ｌ１の軸方向の両端部７２Ａが湾曲されていることにより、つなぎ板７２の外周部における変形軸線Ｌ１の軸方向の両端部７２Ａと座屈拘束管５４との摺動抵抗を小さくすることができる。これにより、エネルギ吸収荷重のストロークに対するばらつきを抑制することができる。 Here, in the energy absorbing device 70 of the present embodiment, by having the connecting plate 72, when the first deforming portion 64 and the second deforming portion 66 are deformed, the first deforming portion 64 and the second deformable portion. The contact of the portion 66 with the inner peripheral surface of the buckling restraint tube 54 is suppressed, and the sliding resistance due to the contact between the deforming portion 62 (the first deforming portion 64 and the second deforming portion 66) and the buckling restraint tube 54 is reduced. can do. Further, since both ends 72A in the axial direction of the deformation axis L1 in the outer peripheral part of the connecting plate 72 are curved, both ends 72A in the axial direction of the deformation axis L1 in the outer peripheral part of the connecting plate 72 and the buckling restraint tube 54. The sliding resistance between and can be reduced. As a result, it is possible to suppress the variation of the energy absorption load with respect to the stroke.

（第３実施形態に係るエネルギ吸収デバイス）
次に、図８を用いて本発明の第３実施形態に係るエネルギ吸収デバイス７４について説明する。 (Energy Absorbing Device According to Third Embodiment)
Next, an energy absorbing device 74 according to the third embodiment of the present invention will be described with reference to FIG.

図８に示されるように、本実施形態のエネルギ吸収デバイス７４は、つなぎ板７２が座屈拘束管５４に固定されていると共に、座屈拘束管５４の一方側の端部及び他方側の端部と第１接続部５６及び第２接続部５８とがそれぞれ固定されていないことに特徴がある。このエネルギ吸収デバイス７４では、当該エネルギ吸収デバイス７４に引張荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ板７２が座屈拘束管５４と共に矢印Ｇ１方向へ回転されながら第１変形部６４と第２変形部６６とが引き延ばされるように塑性変形される。また、エネルギ吸収デバイス７４に圧縮荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ板７２が座屈拘束管５４と共に矢印Ｇ２方向へ回転されながら第１変形部６４と第２変形部６６とが縮められるように塑性変形される。これにより、エネルギ吸収デバイス７４に入力されたエネルギを吸収することができる。このように、座屈拘束管５４が回転されながら第１変形部６４及び第２変形部６６が変形される構成とすることにより、座屈拘束管５４が回転されることによって生じる慣性力を利用して、エネルギ吸収デバイス７４が発生させるエネルギ吸収荷重を調節することができる（第２実施形態に係るエネルギ吸収デバイス７０に比べてエネルギ吸収荷重を増やすことができる）。 As shown in FIG. 8, in the energy absorbing device 74 of the present embodiment, the connecting plate 72 is fixed to the buckling restraint tube 54, and one end and the other end of the buckling restraint tube 54 are connected. It is characterized in that the portion and the first connecting portion 56 and the second connecting portion 58 are not fixed to each other. In this energy absorbing device 74, when a tensile load acts on the energy absorbing device 74 and the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress, the first deforming portion 64 and the second deformable portion 64 The connecting plate 72 that connects the deforming portion 66 with the buckling restraint tube 54 is plastically deformed so that the first deforming portion 64 and the second deforming portion 66 are stretched while being rotated in the direction of the arrow G1. Moreover, when the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress due to the compressive load acting on the energy absorbing device 74, the first deforming portion 64 and the second deforming portion 66 are connected to each other. The connecting plate 72 is plastically deformed so that the first deforming portion 64 and the second deforming portion 66 are contracted while the buckling restraint tube 54 is rotated in the arrow G2 direction. Thereby, the energy input to the energy absorption device 74 can be absorbed. In this way, by adopting a configuration in which the first deformation portion 64 and the second deformation portion 66 are deformed while the buckling restraint tube 54 is rotated, the inertial force generated by the rotation of the buckling restraint tube 54 is used. Then, the energy absorption load generated by the energy absorption device 74 can be adjusted (the energy absorption load can be increased as compared with the energy absorption device 70 according to the second embodiment).

（第４実施形態に係るエネルギ吸収デバイス）
次に、図９及び図１０を用いて本発明の第４実施形態に係るエネルギ吸収デバイス７６について説明する。 (Energy Absorbing Device According to Fourth Embodiment)
Next, an energy absorbing device 76 according to the fourth embodiment of the present invention will be described with reference to FIGS. 9 and 10.

図９（Ａ）、（Ｂ）及び図１０に示されるように、本実施形態のエネルギ吸収デバイス７６は、エネルギ吸収デバイス本体５２の第１変形部６４と第２変形部６６とが、円柱状（内部が中空の円筒状でもよい）に形成されたつなぎ部としてのつなぎ棒７８を介してつながれていると共に、第１変形部６４及び第２変形部６６が、つなぎ棒７８の一方側の端部及び他方側の端部に固定された２つの座屈拘束管５４にそれぞれ覆われていることに特徴がある。このエネルギ吸収デバイス７６では、当該エネルギ吸収デバイス７６に引張荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ棒７８が２つの座屈拘束管５４と共に矢印Ｇ１方向へ回転されながら第１変形部６４と第２変形部６６とが引き延ばされるように塑性変形される。また、エネルギ吸収デバイス７６に圧縮荷重が作用することにより、第１変形部６４及び第２変形部６６に生じる応力が降伏応力を超えると、第１変形部６４と第２変形部６６とをつなぐつなぎ棒７８が２つの座屈拘束管５４と共に矢印Ｇ２方向へ回転されながら第１変形部６４と第２変形部６６とが縮められるように塑性変形される。これにより、エネルギ吸収デバイス７６に入力されたエネルギを吸収することができる。また、本実施形態では、つなぎ棒７８の長さを調節することにより、エネルギ吸収デバイス７６の長さを容易に調節することができる。なお、一例として、図２Ａに示された斜材３０としての機能をつなぎ棒７８に持たせることもできる。 As shown in FIGS. 9A, 9B, and 10, in the energy absorbing device 76 of the present embodiment, the first deforming portion 64 and the second deforming portion 66 of the energy absorbing device body 52 are cylindrical. The first deformable portion 64 and the second deformable portion 66 are connected to each other via a connecting rod 78 as a connecting portion formed in (the inside may be a hollow cylindrical shape), and one end of the connecting rod 78 on one side. It is characterized in that it is covered with two buckling restraint tubes 54 fixed to the end portion and the end portion on the other side. In this energy absorbing device 76, when a tensile load acts on the energy absorbing device 76 and the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress, the first deforming portion 64 and the second deforming portion 64 The connecting rod 78 that connects the deformable portion 66 is plastically deformed so that the first deformable portion 64 and the second deformable portion 66 are extended while being rotated in the arrow G1 direction together with the two buckling restraint tubes 54. Further, when the stress generated in the first deforming portion 64 and the second deforming portion 66 exceeds the yield stress due to the compressive load acting on the energy absorbing device 76, the first deforming portion 64 and the second deforming portion 66 are connected. The connecting rod 78 is plastically deformed so that the first deforming portion 64 and the second deforming portion 66 are contracted while the connecting rod 78 is rotated in the arrow G2 direction together with the two buckling restraint tubes 54. Thereby, the energy input to the energy absorption device 76 can be absorbed. Further, in the present embodiment, the length of the energy absorbing device 76 can be easily adjusted by adjusting the length of the connecting rod 78. Note that, as an example, the connecting rod 78 may have the function as the diagonal member 30 shown in FIG. 2A.

（第５実施形態に係るエネルギ吸収デバイス）
次に、図１１及び図１２を用いて本発明の第５実施形態に係るエネルギ吸収デバイス８０について説明する。 (Energy Absorbing Device According to Fifth Embodiment)
Next, an energy absorbing device 80 according to the fifth embodiment of the present invention will be described with reference to FIGS. 11 and 12.

図１１（Ａ）、（Ｂ）及び図１２に示されるように、本実施形態のエネルギ吸収デバイス８０は、エネルギ吸収デバイス本体５２の第１変形部６４と第１接続部５６との間及び第２変形部６６と第２接続部５８との間に延長棒８２がそれぞれ設けられていることに特徴がある。このエネルギ吸収デバイス８０は、前述の第４実施形態のエネルギ吸収デバイス７６と同様に延長棒８２の長さを調節することにより、エネルギ吸収デバイス８０の長さを容易に調節することができる。なお、一例として、図３Ａに示された第１斜材３４及び第２斜材３６としての機能を延長棒８２に持たせることもできる。 As shown in FIGS. 11A, 11B, and 12, the energy absorbing device 80 according to the present embodiment is provided between the first deforming portion 64 and the first connecting portion 56 of the energy absorbing device body 52, and between the first deforming portion 64 and the first connecting portion 56. The extension rods 82 are provided between the second deforming portion 66 and the second connecting portion 58, respectively. In this energy absorbing device 80, the length of the energy absorbing device 80 can be easily adjusted by adjusting the length of the extension rod 82 similarly to the energy absorbing device 76 of the fourth embodiment described above. Note that, as an example, the extension rod 82 may have the functions of the first diagonal member 34 and the second diagonal member 36 shown in FIG. 3A.

なお、以上説明したエネルギ吸収デバイス５０、７０、７４、７６及び８０では、座屈拘束管５４を設けた例について説明したが、本発明はこれに限定されない。例えば、座屈拘束管５４を設けない構成としてもよいし、第１変形部６４及び第２変形部６６の座屈を抑制する他の構成の座屈拘束部材を設けてもよい。また、建物の壁や基礎等に形成された筒状の孔の内部に第１変形部６４及び第２変形部６６を配置することで、第１変形部６４及び第２変形部６６の座屈を抑制してもよい。 In the energy absorbing devices 50, 70, 74, 76 and 80 described above, the example in which the buckling restraint tube 54 is provided has been described, but the present invention is not limited to this. For example, the buckling restraint tube 54 may not be provided, or a buckling restraint member having another structure for suppressing buckling of the first deforming portion 64 and the second deforming portion 66 may be provided. Further, by arranging the first deforming portion 64 and the second deforming portion 66 inside the cylindrical hole formed in the wall or foundation of the building, the buckling of the first deforming portion 64 and the second deforming portion 66 is performed. May be suppressed.

また、以上説明したエネルギ吸収デバイス５０、７０、７４、７６及び８０では、変形軸線Ｌ１上において一対の第１変形部６４と第２変形部６６を設けた例について説明したが、本発明はこれに限定されない。例えば、変形軸線Ｌ１上において複数対の第１変形部６４と第２変形部６６を設けた構成でもよい。また、第１変形部６４と第２変形部６６は捩れの向きのみが異なる鏡面対称の形状に限らず、第１変形部６４と第２変形部６６は厚み、幅、長さ、捩り角度、降伏点などが異なる非対称な形状、仕様とすることもできる。 Further, in the energy absorbing devices 50, 70, 74, 76 and 80 described above, an example in which the pair of the first deforming portion 64 and the second deforming portion 66 is provided on the deformation axis L1 has been described, but the present invention is not limited to this. Not limited to. For example, a plurality of pairs of the first deforming portion 64 and the second deforming portion 66 may be provided on the deforming axis L1. Further, the first deforming portion 64 and the second deforming portion 66 are not limited to the mirror-symmetrical shapes in which only the twisting directions are different, and the first deforming portion 64 and the second deforming portion 66 have a thickness, a width, a length, a twisting angle, Asymmetrical shapes and specifications with different yield points can also be used.

（ＣＡＥ解析結果の説明）
次に、図１３〜図２２を用いて、本実施形態のエネルギ吸収デバイス及び対比例に係るエネルギ吸収デバイスに変形軸線の軸方向への荷重が入力された際に生じるエネルギ吸収荷重の特性等のＣＡＥ解析による評価結果について説明する。 (Explanation of CAE analysis results)
Next, using FIG. 13 to FIG. 22, the characteristics of the energy absorption load generated when a load in the axial direction of the deformation axis is input to the energy absorption device of the present embodiment and the energy absorption device according to the comparative example The evaluation results by CAE analysis will be described.

前述のように、本実施形態のエネルギ吸収デバイス５０、７０、７４、７６及び８０では、第１変形部６４における第２変形部６６側の端部及び第２変形部６６における第１変形部６４側の端部の回転が拘束されない構成とすることで、入力された荷重に対するエネルギを安定して吸収する。当該構成の効果を確認するために、以下の解析条件によりＣＡＥ解析を行った。 As described above, in the energy absorbing devices 50, 70, 74, 76 and 80 of the present embodiment, the end portion of the first deforming portion 64 on the second deforming portion 66 side and the first deforming portion 64 of the second deforming portion 66. By adopting a configuration in which the rotation of the end portion on the side is not restricted, the energy with respect to the input load is stably absorbed. In order to confirm the effect of the said structure, CAE analysis was performed on the following analysis conditions.

図１３に示す第１変形部６４単体を対象に、厚肉シェル要素を用いた有限要素解析モデルを作成し、当該第１変形部６４に引張り及び圧縮荷重Ｐを加えた際のエネルギ吸収荷重の特性、各部に生じる応力、及び寸法変化を評価した。なお、第１変形部６４の一方側の端部は、変形軸線Ｌ１の回りに回転しないように固定された固定点６４Ａに締結し、第１変形部６４の他方側の端部は、変形軸線Ｌ１回りへの回転が拘束された状態で荷重が入力される、或いは、変形軸線Ｌ１回りへの回転が拘束されない状態で荷重が入力される載荷点６４Ｂに締結した。また、引張り及び圧縮荷重Ｐが入力される前の第１変形部６４の厚みをｔ（ｍｍ）、幅をＢ（ｍｍ）、長さをＬ（ｍｍ）とした。なお、第１変形部６４を形成する鋼板のヤング率は２０５ＧＰａ、ポアソン比は０．３、降伏点は２００ＭＰａとし、降伏後の加工硬化特性はマルチリニアの曲線で近似した。 A finite element analysis model using a thick shell element is created for the single first deformable portion 64 shown in FIG. 13, and the energy absorption load when a tensile and compressive load P is applied to the first deformable portion 64. The characteristics, the stress generated in each part, and the dimensional change were evaluated. It should be noted that one end of the first deforming portion 64 is fastened to a fixed point 64A that is fixed so as not to rotate around the deformation axis L1, and the other end of the first deforming portion 64 is connected to the deforming axis L1. It fastened to the loading point 64B where the load is input while the rotation around L1 is restricted, or the load is input while the rotation around deformation axis L1 is not restricted. The thickness of the first deformable portion 64 before the tensile and compressive load P is input is t (mm), the width is B (mm), and the length is L (mm). The Young's modulus of the steel sheet forming the first deformable portion 64 was 205 GPa, the Poisson's ratio was 0.3, the yield point was 200 MPa, and the work hardening characteristics after yielding were approximated by a multi-linear curve.

図１４に示されるように、対比例の解析条件Ｔ１及びＴ２に係る第１変形部６４の厚みｔ、幅Ｂ、長さＬは、それぞれ６．０（ｍｍ）、６０（ｍｍ）、１８０（ｍｍ）であり、この第１変形部６４の載荷点６４Ｂの回転拘束をした状態で引張り及び圧縮荷重Ｐを載荷点６４Ｂに入力した。また、解析条件Ｔ１に係る第１変形部６４の捩り角度θは、３６０ｄｅｇであり、解析条件Ｔ２に係る第１変形部６４の捩り角度θは、５４０ｄｅｇである。ここで、捩り角度θとは、第１変形部６４の固定点６４Ａに対して載荷点６４Ｂ側の部分が変形軸線Ｌ１回りに捩られた角度、すなわち、長さＬの範囲において変形部を構成する板が変形軸線Ｌ１回りに捩られた角度のことである。なお、幅Ｂ及び長さＬが異なる第１変形部６４のエネルギ吸収荷重の特性等を評価する場合には、上記回転角度θを（Ｌ／Ｂ）で割ることにより算出されたねじり角度を解析条件の一つとして採用することもできる。 As shown in FIG. 14, the thickness t, the width B, and the length L of the first deformable portion 64 according to the comparative analysis conditions T1 and T2 are 6.0 (mm), 60 (mm), and 180 ( mm), and the tensile and compressive loads P were input to the loading point 64B while the loading point 64B of the first deformable portion 64 was rotationally restrained. The torsion angle θ of the first deformable portion 64 according to the analysis condition T1 is 360 deg, and the twist angle θ of the first deformable portion 64 according to the analysis condition T2 is 540 deg. Here, the twist angle θ is an angle at which the portion of the first deforming portion 64 on the side of the loading point 64B with respect to the fixed point 64A is twisted around the deforming axis L1, that is, the deforming portion is formed in the range of the length L. The angle at which the plate is twisted around the deformation axis L1. When evaluating the characteristics of the energy absorption load of the first deformable portion 64 having different widths B and lengths L, the twist angle calculated by dividing the above rotation angle θ by (L/B) is analyzed. It can also be adopted as one of the conditions.

これに対して、本実施形態のエネルギ吸収デバイス５０等を模擬した解析条件Ｎ１及びＮ２に係る第１変形部６４の厚みｔ、幅Ｂ、長さＬは、解析条件Ｔ１及びＴ２と同様にそれぞれ６．０（ｍｍ）、６０（ｍｍ）、１８０（ｍｍ）であり、この第１変形部６４の載荷点６４Ｂの回転拘束をしない状態で引張り及び圧縮荷重Ｐを載荷点６４Ｂに入力した。また、解析条件Ｎ１に係る第１変形部６４の捩り角度θは、解析条件Ｔ１と同様に３６０ｄｅｇであり、解析条件Ｎ２に係る第１変形部６４の捩り角度θは、解析条件Ｔ２と同様に５４０ｄｅｇである。 On the other hand, the thickness t, the width B, and the length L of the first deformable portion 64 relating to the analysis conditions N1 and N2 simulating the energy absorbing device 50 of the present embodiment are the same as the analysis conditions T1 and T2, respectively. It was 6.0 (mm), 60 (mm), 180 (mm), and the tensile and compressive loads P were input to the loading point 64B in a state where the loading point 64B of the first deformable portion 64 was not rotationally restrained. The torsion angle θ of the first deformable portion 64 according to the analysis condition N1 is 360 deg as in the analysis condition T1, and the twist angle θ of the first deformable portion 64 according to the analysis condition N2 is similar to that of the analysis condition T2. It is 540 deg.

図１５Ａには、引張荷重又は圧縮荷重Ｐを加えた際における変形量δ（固定点６４Ａに対する載荷点６４Ｂの変位量）とエネルギ吸収荷重Ｐ（引張及び圧縮荷重Ｐに対応）の関係が示されている。この図に示されるように、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４では、対比例の解析条件Ｔ１に係る第１変形部６４に比べて、変形量に対するエネルギ吸収荷重が小さくなっていることがわかる。なお、図１５Ｂに示されるように、本実施形態の構成を模擬した解析条件Ｎ２に係る第１変形部６４と対比例の解析条件Ｔ２に係る第１変形部６４との比較においても、変形量に対するエネルギ吸収荷重が同様の傾向となっている。 FIG. 15A shows the relationship between the deformation amount δ (the displacement amount of the loading point 64B with respect to the fixed point 64A) and the energy absorption load P (corresponding to the tension and compression load P) when a tensile load or a compressive load P is applied. ing. As shown in this figure, the first deforming portion 64 under the analysis condition N1 simulating the configuration of the present embodiment absorbs energy with respect to the amount of deformation as compared with the first deforming portion 64 under the comparative analysis condition T1. It can be seen that the load is smaller. Note that, as shown in FIG. 15B, the amount of deformation is also compared in the comparison between the first deforming section 64 according to the analysis condition N2 simulating the configuration of the present embodiment and the first deforming section 64 according to the comparative analysis condition T2. The energy absorption load for the same tendency is similar.

図１６Ａには、引張及び圧縮荷重Ｐを繰り返し加えながら引張及び圧縮方向の変形量δの値を徐々に大きくした際における変形量δ（固定点６４Ａに対する載荷点６４Ｂの変位量）とエネルギ吸収荷重Ｐ（引張及び圧縮荷重Ｐに対応）の関係が示されている。この図に示されるように、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４では、解析を行った変形量の範囲内において耐力低下のほとんどない安定した繰返し履歴となっていることがわかる。これに対して、対比例の解析条件Ｔ１に係る第１変形部６４では、エネルギ吸収荷重が約１３０ｋＮを超えた領域において急激に耐力低下する不安定な繰返し履歴となっていることがわかる。すなわち、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４は対比例の解析条件Ｔ１に係る第１変形部６４に比べて、繰返し変形に対してより安定したエネルギ吸収性能を得られることがわかる。なお、図１６Ｂに示されるように、本実施形態の構成を模擬した解析条件Ｎ２に係る第１変形部６４と対比例の解析条件Ｔ２に係る第１変形部６４との比較においても、引張及び圧縮荷重Ｐを繰り返し加えながら引張及び圧縮方向の変形量δの値を徐々に大きくした際の変形量δに対するエネルギ吸収荷重Ｐの特性が同様の傾向となっている。 FIG. 16A shows the amount of deformation δ (the amount of displacement of the loading point 64B with respect to the fixed point 64A) and the energy absorption load when the value of the amount of deformation δ in the tensile and compression directions is gradually increased while repeatedly applying the tensile and compression loads P. The relationship of P (corresponding to tensile and compressive load P) is shown. As shown in this figure, in the first deformation section 64 according to the analysis condition N1 simulating the configuration of the present embodiment, a stable repetition history with almost no decrease in yield strength is obtained within the range of the analyzed deformation amount. You can see that On the other hand, it can be seen that in the first deforming portion 64 according to the comparative analysis condition T1, an unstable repeated history is obtained in which the yield strength rapidly decreases in the region where the energy absorption load exceeds approximately 130 kN. That is, the first deforming section 64 according to the analysis condition N1 simulating the configuration of the present embodiment has more stable energy absorption performance against repeated deformation than the first deforming section 64 according to the comparative analysis condition T1. You can see that you can get it. Note that, as shown in FIG. 16B, even in the comparison between the first deforming portion 64 according to the analysis condition N2 simulating the configuration of the present embodiment and the first deforming portion 64 according to the comparative analysis condition T2, the tensile and The characteristic of the energy absorption load P with respect to the deformation amount δ when the value of the deformation amount δ in the tensile and compression directions is gradually increased while repeatedly applying the compression load P has a similar tendency.

図１７（Ａ）及び図１８（Ａ）には、対比例の解析条件Ｔ１に係る第１変形部６４を２０ｍｍ圧縮変形させた際に当該第１変形部６４に生じる板厚中心のミーゼス応力の等応力線が示されていると共に、図１７（Ｂ）及び図１８（Ｂ）には、対比例の解析条件Ｔ１に係る第１変形部６４を２０ｍｍ引張変形させた際に当該第１変形部６４に生じる板厚中心のミーゼス応力の等応力線が示されている。なお、各等応力線を指示した数字は応力の値を示しており、単位はＭＰａである。また、図１９（Ａ）及び図２０（Ａ）には、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４を２０ｍｍ圧縮変形させた際に当該第１変形部６４に生じる板厚中心のミーゼス応力の等応力線が示されていると共に、図１９（Ｂ）及び図２０（Ｂ）には、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４を２０ｍｍ引張変形させた際に当該第１変形部６４に生じる板厚中心のミーゼス応力の等応力線が示されている。これらの図に示されるように、対比例の構成を模擬した解析条件Ｔ１に係る第１変形部６４では、本実施形態の構成を模擬した解析条件Ｎ１に比べて、固定点６４Ａ及び載荷点６４Ｂ側における板幅方向の縁部（等応力線を指示した数字に下線を設けた箇所）において局所的に生じる応力が大きくなっていることがわかる。一方で、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４では、対比例の解析条件Ｔ１に係る第１変形部６４に比べて、固定点６４Ａ及び載荷点６４Ｂ側における板幅方向の縁部に生じる応力が小さくなっていることがわかる。 FIGS. 17A and 18A show the Mises stress of the plate thickness center generated in the first deforming portion 64 when the first deforming portion 64 according to the comparative analysis condition T1 is compressed and deformed by 20 mm. 17B and 18B show equal stress lines, and when the first deforming portion 64 according to the comparative analysis condition T1 is tensile deformed by 20 mm, the first deforming portion is shown. The iso-stress lines of the Mises stress at the plate thickness center occurring at 64 are shown. The number indicating each iso-stress line indicates the value of stress, and the unit is MPa. 19(A) and 20(A), when the first deformation portion 64 according to the analysis condition N1 simulating the configuration of the present embodiment is compressed and deformed by 20 mm, it occurs in the first deformation portion 64. The iso-stress lines of the Mises stress at the plate thickness center are shown, and the first deforming portion 64 according to the analysis condition N1 simulating the configuration of the present embodiment is shown in FIGS. 19(B) and 20(B). The iso-stress line of the Mises stress of the plate thickness center which arises in the said 1st deformation|transformation part 64 when 20 mm is tensile-deformed is shown. As shown in these figures, in the first deforming section 64 according to the analysis condition T1 simulating the configuration of the proportional structure, compared to the analysis condition N1 simulating the configuration of the present embodiment, the fixed point 64A and the loading point 64B. It can be seen that the locally generated stress is large at the edge portion in the plate width direction on the side (where underlines are given to the numbers indicating the equal stress lines). On the other hand, in the first deforming portion 64 according to the analysis condition N1 simulating the configuration of the present embodiment, the plates on the fixed point 64A and loading point 64B sides are more than those of the first deforming portion 64 according to the comparative analysis condition T1. It can be seen that the stress generated at the widthwise edge is small.

以上の解析結果をまとめると、載荷点６４Ｂの回転の拘束をした対比例の解析条件Ｔ１，Ｔ２に係る第１変形部６４は、載荷点６４Ｂの回転の拘束をしていない本実施形態の構成を模擬した解析条件Ｎ１、Ｎ２に係る第１変形部６４に比べて、引張及び圧縮に対する変形抵抗（エネルギ吸収荷重）が増加し、第１変形部６４の固定点６４Ａ及び載荷点６４Ｂ側の局所において応力が上昇するため、エネルギ吸収時の構造的な安定性を確保し難くなる。その結果、繰返しの引張及び圧縮荷重に対する変形性能が低下してしまう。 Summarizing the above analysis results, the first deformable portion 64 according to the comparative analysis conditions T1 and T2 in which the rotation of the loading point 64B is restrained does not constrain the rotation of the loading point 64B. The deformation resistance (energy absorption load) to tension and compression is increased as compared with the first deforming portion 64 according to the analysis conditions N1 and N2 simulating the above, and the local points of the first deforming portion 64 on the side of the fixed point 64A and the loading point 64B. Since the stress rises at, it becomes difficult to secure structural stability during energy absorption. As a result, the deformability against repeated tensile and compressive loads is reduced.

これに対して、載荷点６４Ｂの回転の拘束をしていない本実施形態の構成を模擬した解析条件Ｎ１，Ｎ２に係る第１変形部６４では、引張及び圧縮に対する変形抵抗を抑えることができるため、第１変形部６４の固定点６４Ａ及び載荷点６４Ｂ側の局所における応力上昇を抑制でき、エネルギ吸収時の構造的な安定性を確保し易くなる。これにより、繰返しの引張及び圧縮荷重に対する変形性能を確保することができる On the other hand, in the first deformable portion 64 according to the analysis conditions N1 and N2 simulating the configuration of the present embodiment in which the rotation of the loading point 64B is not constrained, the deformation resistance against tension and compression can be suppressed. The local stress increase on the fixed point 64A side and the loading point 64B side of the first deformable portion 64 can be suppressed, and the structural stability during energy absorption can be easily ensured. As a result, it is possible to secure the deformation performance against repeated tensile and compressive loads.

図２１（Ａ）には、対比例の解析条件Ｔ１に係る第１変形部６４を２０ｍｍ圧縮変形させた際の当該第１変形部６４の外径Ｄ（変形軸線Ｌ１と直交する方向への幅寸法）の最大変化量Ｄ１（＝Ｄ×６％）が示されており、図２１（Ｂ）には、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４を２０ｍｍ圧縮変形させた際の当該第１変形部６４の外径Ｄの最大変化量Ｄ３（＝Ｄ×３％）が示されている。また、図２２（Ａ）には、対比例の解析条件Ｔ１に係る第１変形部６４を２０ｍｍ引張変形させた際の当該第１変形部６４の外径Ｄの最大変化量Ｄ２（＝Ｄ×６％）が示されており、図２２（Ｂ）には、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４を２０ｍｍ引張変形させた際の当該第１変形部６４の外径Ｄの最大変化量Ｄ４（＝Ｄ×３％）が示されている。これらの図に示されるように、本実施形態の構成を模擬した解析条件Ｎ１に係る第１変形部６４の幅の最大変化量Ｄ３、Ｄ４は、対比例の解析条件Ｔ１に係る第１変形部６４の幅の最大変化量Ｄ１、Ｄ２に比べて２分の１に低減されていることがわかる。これにより、本実施形態の構成を模擬した解析条件Ｎ１では、第１変形部６４の伸縮に伴う幅方向の形状変化が抑制され、第１変形部６４と座屈拘束管５４（図６参照）の隙間の変化を抑制できる。その結果、座屈拘束管５４と第１変形部６４の干渉を抑制しやすくなり、座屈拘束管の隙間を小さく抑えることで座屈拘束管を小径化することにもつながる。 In FIG. 21(A), the outer diameter D (width in the direction orthogonal to the deformation axis L1) of the first deformation portion 64 when the first deformation portion 64 according to the comparative analysis condition T1 is compressed and deformed by 20 mm. The maximum change amount D1 (=D×6%) of the dimension is shown, and in FIG. 21B, the first deforming portion 64 according to the analysis condition N1 simulating the configuration of the present embodiment is compressed and deformed by 20 mm. The maximum change amount D3 (=D×3%) of the outer diameter D of the first deformable portion 64 when being caused is shown. Further, in FIG. 22A, the maximum change amount D2 (=D×) of the outer diameter D of the first deformable portion 64 when the first deformable portion 64 according to the comparative analysis condition T1 is tensile deformed by 20 mm. 6%) is shown, and FIG. 22B shows the first deformable portion 64 when the first deformable portion 64 according to the analysis condition N1 simulating the configuration of the present embodiment is tensile deformed by 20 mm. The maximum change amount D4 (=D×3%) of the outer diameter D is shown. As shown in these figures, the maximum change amounts D3 and D4 of the width of the first deforming section 64 relating to the analysis condition N1 simulating the configuration of the present embodiment are the same as the first deforming section relating to the analysis condition T1 of the proportional relationship. It can be seen that the widths of 64 are reduced to one half of the maximum change amounts D1 and D2. Thereby, under the analysis condition N1 simulating the configuration of the present embodiment, the shape change in the width direction due to the expansion and contraction of the first deformable portion 64 is suppressed, and the first deformable portion 64 and the buckling restraint tube 54 (see FIG. 6). The change in the gap can be suppressed. As a result, it becomes easy to suppress the interference between the buckling restraint tube 54 and the first deformable portion 64, and it is possible to reduce the diameter of the buckling restraint tube by keeping the gap between the buckling restraint tubes small.

以上説明したＣＡＥ解析の結果等を踏まえて、所望のエネルギ吸収荷重の特性が得られるエネルギ吸収デバイスを設計すればよい。 Based on the results of the CAE analysis described above and the like, it suffices to design an energy absorption device that can obtain the desired characteristics of energy absorption load.

また、以上説明したＣＡＥ解析では、第１変形部６４を形成する素材は降伏点が２００ＭＰａの鋼とされた例について説明したが、本発明はこれに限定されず、より降伏点が低い低降伏点鋼や、降伏点や引張強さが大きな高強度鋼であってもよい。エネルギ吸収デバイスの材質は鋼に限らず、ステンレスやアルミなど可塑性の金属や合金であってもよく、樹脂などのその他の素材であってもよい。また、エネルギ吸収デバイスに用いる素材の強度も任意に選択することができる。 Further, in the CAE analysis described above, an example was described in which the material forming the first deformable portion 64 was steel having a yield point of 200 MPa, but the present invention is not limited to this, and a low yield point with a lower yield point is used. It may be a point steel or a high strength steel having a large yield point or tensile strength. The material of the energy absorbing device is not limited to steel, and may be a plastic metal or alloy such as stainless steel or aluminum, or other material such as resin. Also, the strength of the material used for the energy absorbing device can be arbitrarily selected.

以上、本発明の一実施形態について説明したが、本発明は、上記に限定されるものでなく、その主旨を逸脱しない範囲内において上記以外にも種々変形して実施することが可能であることは勿論である。 Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be carried out without departing from the gist of the invention. Of course.

１４ 耐震壁
１６ フレーム部
２４ 縦材
２６ 横材
２８ 耐震壁
３２ 耐震壁
４２ アイソレータ（支持部）
５０ エネルギ吸収デバイス
５４ 座屈拘束管（座屈拘束部材）
５６ 第１接続部
５８ 第２接続部
６２ 変形部（エネルギ吸収部）
６４ 第１変形部
６６ 第２変形部
７０ エネルギ吸収デバイス
７２ つなぎ板（つなぎ部）
７４ エネルギ吸収デバイス
７６ エネルギ吸収デバイス
７８ つなぎ棒（つなぎ部）
８０ エネルギ吸収デバイス
Ｌ１ 変形軸線 14 Seismic wall 16 Frame part 24 Vertical member 26 Horizontal member 28 Seismic wall 32 Seismic wall 42 Isolator (supporting part)
50 Energy Absorption Device 54 Buckling Restraint Tube (Buckling Restraint Member)
56 1st connection part 58 2nd connection part 62 Deformation part (energy absorption part)
64 1st deformation|transformation part 66 2nd deformation|transformation part 70 Energy absorption device 72 Connecting plate (connecting part)
74 Energy Absorbing Device 76 Energy Absorbing Device 78 Connecting Rod (Connecting Part)
80 Energy Absorption Device L1 Deformation Axis

Claims (6)

変形軸線の方向に作用する荷重に対して変形するエネルギ吸収デバイスであって、
前記変形軸線の方向が長手方向とされたエネルギ吸収デバイス本体と、
前記エネルギ吸収デバイス本体の長手方向の一方側の端部を構成し、一の部材が接続される第１接続部と、
前記エネルギ吸収デバイス本体の長手方向の他方側の端部を構成し、他の部材が接続される第２接続部と、
前記エネルギ吸収デバイス本体における前記第１接続部と前記第２接続部との間の部位を構成し、前記変形軸線に沿って該変形軸線まわりに一方側へ捩れている鋼板材によって形成された第１変形部と、前記エネルギ吸収デバイス本体における前記第１接続部と前記第２接続部との間の部位を構成すると共に前記第１変形部と前記変形軸線の軸方向につながれ、前記変形軸線に沿って該変形軸線まわりに他方側へ捩れている鋼板材によって形成された第２変形部と、を有し、前記変形軸線の軸方向への荷重によって、前記第１接続部と前記第２接続部との前記変形軸線の軸方向への相対位置が変化されることで、前記第１変形部及び前記第２変形部が塑性変形されてエネルギを吸収するエネルギ吸収部と、
を備えたエネルギ吸収デバイス。 An energy absorbing device that deforms with respect to a load acting in the direction of the deformation axis,
An energy absorbing device body in which the direction of the deformation axis is the longitudinal direction;
A first connecting portion which constitutes one end portion in the longitudinal direction of the energy absorbing device main body and to which one member is connected;
A second connecting portion that constitutes an end portion on the other side in the longitudinal direction of the energy absorbing device body and to which other members are connected;
A part formed of a steel plate material that constitutes a portion between the first connecting portion and the second connecting portion in the energy absorbing device body, and is twisted to one side around the deformation axis along the deformation axis and one deformable portion, connected in the axial direction of the site and configuration to Rutotomoni the first deformation portion of the deformation axis between the second connecting portion and first connecting portion of the energy absorbing device body, wherein the deformation axis A second deformable portion formed of a steel plate material that is twisted to the other side around the deformable axis along the first deformable portion and the second connecting portion and the second deformable portion due to an axial load of the deformable axis. An energy absorbing part that absorbs energy by plastically deforming the first deforming part and the second deforming part by changing the relative position of the connecting part in the axial direction of the deforming axis line,
Energy absorption device. 前記第１変形部及び前記第２変形部のまわりには、該第１変形部及び該第２変形部が変形される際に該第１変形部及び該第２変形部が前記変形軸線と交差する方向へ座屈することを抑制する座屈拘束部材が設けられている請求項１記載のエネルギ吸収デバイス。 Around the first deformable portion and the second deformable portion, the first deformable portion and the second deformable portion intersect with the deformable axis when the first deformable portion and the second deformable portion are deformed. The energy absorbing device according to claim 1, further comprising a buckling restraint member that suppresses buckling in a direction in which the buckling occurs. 前記第１変形部と前記第２変形部とは、前記座屈拘束部材に対して前記変形軸線のまわりに回転変位することが可能とされたつなぎ部を介してつながれている請求項２記載のエネルギ吸収デバイス。 The said 1st deformation|transformation part and the said 2nd deformation|transformation part are connected with the said buckling restraint member through the joint part which can be rotationally displaced around the said deformation axis line. Energy absorbing device. 前記第１変形部と前記第２変形部とは、前記座屈拘束部材と共に前記変形軸線のまわりに回転変位することが可能とされたつなぎ部を介してつながれている請求項２記載のエネルギ吸収デバイス。 The energy absorption according to claim 2, wherein the first deformable portion and the second deformable portion are connected together with the buckling restraint member via a joint portion that is capable of rotationally displacing around the deformable axis. device. 建物の水平方向に間隔をあけて建物の上下方向に延在する一対の縦材と、前記一対の縦材の上端部及び下端部を建物の水平方向につなぐ一対の横材と、を有するフレーム部と、
前記一対の縦材の間かつ前記一対の横材の間に配置され、前記フレーム部に入力された荷重が伝達されることで前記第１変形部及び前記第２変形部が塑性変形される請求項１〜請求項４のいずれか１項に記載のエネルギ吸収デバイスと、
を備えた耐震壁。 A frame having a pair of vertical members extending in the vertical direction of the building at intervals in the horizontal direction of the building, and a pair of horizontal members connecting the upper end and the lower end of the pair of vertical members in the horizontal direction of the building. Department,
The first deformable portion and the second deformable portion are plastically deformed by being arranged between the pair of vertical members and between the pair of horizontal members and transmitting a load input to the frame portion. An energy absorbing device according to any one of claims 1 to 4,
Earthquake resistant wall with. 建物の上部構造物と下部構造物との間に設けられ、前記上部構造物を前記下部構造物に対して水平方向に移動可能に支持する支持部と、
前記上部構造物が前記下部構造物に対して水平方向に移動されることで前記第１変形部及び前記第２変形部が塑性変形される請求項１〜請求項４のいずれか１項に記載のエネルギ吸収デバイスと、
を備えた免震構造。 A support portion provided between the upper structure and the lower structure of the building, and supporting the upper structure so as to be movable in the horizontal direction with respect to the lower structure,
The said 1st deformation|transformation part and the said 2nd deformation|transformation part are plastically deformed by moving the said upper structure horizontally with respect to the said lower structure, The any one of Claims 1-4. Energy absorbing device of
With a seismic isolation structure.
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