JP6664968B2 - Damping damper and cumulative plastic displacement measuring instrument - Google Patents

Damping damper and cumulative plastic displacement measuring instrument Download PDF

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JP6664968B2
JP6664968B2 JP2016008258A JP2016008258A JP6664968B2 JP 6664968 B2 JP6664968 B2 JP 6664968B2 JP 2016008258 A JP2016008258 A JP 2016008258A JP 2016008258 A JP2016008258 A JP 2016008258A JP 6664968 B2 JP6664968 B2 JP 6664968B2
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relative displacement
displacement
moving plate
deformation
plate
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JP2017128896A (en
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啓介 塩田
啓介 塩田
和明 宮川
和明 宮川
宏之 今塩
宏之 今塩
仁志 内藤
仁志 内藤
和樹 有薗
和樹 有薗
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JFE Civil Engineering and Construction Corp
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Description

本発明は、制振ダンパー及び累積塑性変位測定器に関する。   The present invention relates to a vibration damper and a cumulative plastic displacement measuring device.

橋梁、水門、ボックスカルバートなどの土木構造物や、ビル、塔、倉庫などの建築構造物の地震対策として、従来は、部材の数や強度を増加させて地震時の外力に対して補強する方法がとられていた。しかし、大規模な地震を想定した場合には、部材の数量や重量が増大して、大幅なコストアップになるなどの問題があった。
これに対して、近年では、制振ダンパーを構造物の部材間に設置することにより、ダンパーのエネルギー吸収効果により構造物の部材に作用する荷重や変形を低減することによって構造物の部材数や重量を低減し、安全性と経済性を向上させる方法がとられるようになっている。 Conventionally, as a countermeasure against earthquakes in civil engineering structures such as bridges, floodgates, box culverts, and building structures such as buildings, towers, and warehouses, methods of increasing the number and strength of members and reinforcing them against external forces during an earthquake Was taken. However, when a large-scale earthquake is assumed, there are problems such as an increase in the number and weight of members and a significant increase in cost.
On the other hand, in recent years, by installing a vibration damper between structural members, the number of structural members is reduced by reducing the load and deformation acting on structural members due to the energy absorbing effect of the damper. Measures have been taken to reduce weight and improve safety and economy.

一方、制振ダンパーには、鋼材を使用したものが多用されている。その一つが、座屈拘束ブレースやダンパーブレースと呼ばれるものである。これらの制振ダンパーは、軸方向に作用する軸荷重により伸縮する軸部材と、この軸部材を内挿して軸部材の座屈を防止する補剛部材とを備え、軸部材の伸縮に伴う塑性変形によってエネルギーを吸収するもので、履歴型ダンパーと呼ばれる。   On the other hand, damping dampers made of steel are often used. One of them is a buckling restrained brace or a damper brace. These vibration dampers include a shaft member that expands and contracts due to an axial load acting in the axial direction, and a stiffening member that interpolates the shaft member to prevent buckling of the shaft member. It absorbs energy by deformation and is called a hysteretic damper.

この履歴型ダンパーでは、安定したエネルギー吸収能を発揮するために、最大変位量と、疲労耐久性を維持するための累積塑性変位量の二つの指標によって設計や安全性の管理が行われる。
ここで、地震を受けたときの制振ダンパーの安全性（耐久性）を外観によって測定するものとして、特許文献１に開示の変位センサーや特許文献２に開示の変位計測装置がある。 In this hysteretic damper, design and safety management are performed using two indices of a maximum displacement and a cumulative plastic displacement for maintaining fatigue durability in order to exhibit a stable energy absorbing ability.
Here, there are a displacement sensor disclosed in Patent Document 1 and a displacement measuring device disclosed in Patent Document 2 for measuring the safety (durability) of the vibration damper when subjected to an earthquake by appearance.

特開２００５−６９９８２号公報JP-A-2005-69982 特開２０１４−１０９１６０号公報JP 2014-109160 A

しかしながら、これらの先行技術は、最大変位量を測定するための装置であり、もうひとつの累積塑性変位量を外観より測定することは困難であった。
本発明の目的は、制振ダンパーの累積塑性変位量を外観より測定することが可能な技術を提供することにある。 However, these prior arts are apparatuses for measuring the maximum displacement, and it is difficult to measure another accumulated plastic displacement from the appearance.
An object of the present invention is to provide a technique capable of measuring the accumulated amount of plastic displacement of a vibration damper from the appearance.

上記目的を達成するため、本発明の一態様に係る制振ダンパーは、ダンパー本体と、このダンパー本体に設けられた累積塑性変位測定器とを備えている。そして、ダンパー本体は、振動エネルギーを変形により吸収する変形部と、変形部の変形により相対変位する２つの相対変位部とを備えている。そして、累積塑性変位測定器は、２つの相対変位部の一方に設けられた一対のガイドレールと、一対のガイドレールに移動自在に支持された移動プレートと、一端側が移動プレートの一主面上に位置し、他端側が２つの相対変位部の他方に支持され、かつ２つの相対変位部の相対変位に伴って移動するアーム部材と、変形部が第１方向に変形して２つの相対変位部が相対変位したときに移動プレートがアーム部材の移動に伴って移動し、変形部が第１方向とは反対方向の第２方向に変形して前記２つの相対変位部材が相対変位したときにアーム部材が移動プレートに対して相対移動するようにして移動プレートの移動方向を第１方向に制限する移動方向制限機構と、移動プレートの移動を妨げる抵抗力を移動プレートに付加する抵抗付加機構と、を備えている。 In order to achieve the above object, a vibration damper according to one aspect of the present invention includes a damper main body and a cumulative plastic displacement measuring device provided on the damper main body. The damper body includes a deformable portion that absorbs vibration energy by deformation, and two relative displacement portions that are relatively displaced by deformation of the deformable portion. The cumulative plastic displacement measuring device includes a pair of guide rails provided on one of the two relative displacement portions, a movable plate movably supported by the pair of guide rails, and one end on one main surface of the movable plate. , The other end is supported by the other of the two relative displacement portions, and the arm member moves with the relative displacement of the two relative displacement portions, and the two relative displacement portions are deformed in the first direction. When the moving plate moves with the movement of the arm member when the portion is relatively displaced, the deformed portion deforms in the second direction opposite to the first direction and the two relatively displaced members are relatively displaced. resistance applying mechanism the arm member is attached to the moving plate and the moving direction restricting mechanism, a resistive force that prevents the movement of the moving plate for limiting the movement direction of the moving plate so as to move relative to the moving plate in the first direction , And a.

また、本発明の一態様に係る累積塑性変位測定器は、振動エネルギーを変形により吸収する変形部、及び変形部の変形により相対変位する２つの相対変位部を備えた制振ダンパーに設けられる累積塑性変位測定器であって、２つの相対変位部の一方に設けられた一対のガイドレールと、一対のガイドレールに移動自在に支持された移動プレートと、一端側が移動プレートの一主面上に位置し、他端側が２つの相対変位部の他方に支持され、かつ２つの相対変位部の相対変位に伴って移動するアーム部材と、変形部が第１方向に変形して２つの相対変位部が相対変位したときに移動プレートがアーム部材の移動に伴って移動し、変形部が第１方向とは反対方向の第２方向に変形して２つの相対変位部材が相対変位したときにアーム部材が移動プレートに対して相対移動するようにして移動プレートの移動方向を第１方向に制限する移動方向制限機構とを備えている。 Further, the cumulative plastic displacement measuring device according to one embodiment of the present invention is a cumulative plastic displacement measuring device provided in a vibration damper provided with a deformation portion that absorbs vibration energy by deformation, and two relative displacement portions that perform relative displacement by deformation of the deformation portion. A plastic displacement measuring device, a pair of guide rails provided on one of two relative displacement portions, a movable plate movably supported by the pair of guide rails, and one end side on one main surface of the movable plate. An arm member that is positioned, the other end of which is supported by the other of the two relative displacement portions, and that moves in accordance with the relative displacement of the two relative displacement portions; When the movable member moves relative to the arm member when the arm member moves relative to the arm member, the deformable portion deforms in the second direction opposite to the first direction and the two relative displacement members move relative to each other. Is moving And a moving direction restricting mechanism for limiting a moving direction of the moving plate so as to move relative to the first direction with respect to the over and.

本願において開示される発明のうち代表的なものによって得られる効果を簡単に説明すれば、下記のとおりである。
制振ダンパーの累積塑性変位量を外観より測定することができる。 The effects obtained by the typical inventions among the inventions disclosed in the present application will be briefly described as follows.
The cumulative plastic displacement of the vibration damper can be measured from the appearance.

本発明の実施形態１に係る制振ダンパーの概略構成を示す模式図（（ａ）は上面図，（ｂ）は正面図）である。FIG. 1 is a schematic diagram illustrating a schematic configuration of a vibration damper according to a first embodiment of the present invention ((a) is a top view, and (b) is a front view). 図１の要部拡大図（（ａ）は図１（ａ）の要部拡大図，（ｂ）は図１（ｂ）の要部拡大図）である。1 (a) is an enlarged view of a main part of FIG. 1 (a), and FIG. 1 (b) is an enlarged view of a main part of FIG. 1 (b). 図１の制振ダンパーにおいて、移動プレートが圧縮方向に移動した状態を示す模式図（（ａ）は図１（ａ）に対応する上面図，（ｂ）は図１（ｂ）に対応する正面図）である。In the vibration damper of FIG. 1, a schematic view showing a state in which the moving plate has moved in the compression direction ((a) is a top view corresponding to FIG. 1 (a), and (b) is a front view corresponding to FIG. 1 (b) Figure). 図３の要部拡大図（（ａ）は図３（ａ）の要部拡大図，（ｂ）は図３（ｂ）の要部拡大図）である。FIG. 3 is an enlarged view of a main part ((a) is an enlarged view of a main part of FIG. 3 (a), and (b) is an enlarged view of a main part of FIG. 3 (b)). 図１のａ−ａ線に沿った断面構造を示す断面図である。FIG. 2 is a cross-sectional view illustrating a cross-sectional structure along the line aa in FIG. 1. 図１に示す累積塑性変位量測定器の動作を説明するための模式図である。FIG. 2 is a schematic diagram for explaining an operation of the cumulative plastic displacement amount measuring device shown in FIG. 1. 図１に示す累積塑性変位量測定器の動作を説明するための模式図である。FIG. 2 is a schematic diagram for explaining an operation of the cumulative plastic displacement amount measuring device shown in FIG. 1. 図１に示す最大変位量測定器の動作を説明するための模式図である。FIG. 2 is a schematic diagram for explaining an operation of the maximum displacement measuring device shown in FIG. 1. 本発明の実施形態１に係る制振ダンパーにおいて、地震発生の際の振動エネルギーで軸部材に生じる変位状態の一例を示す履歴曲線図である。FIG. 4 is a hysteresis curve diagram showing an example of a displacement state generated in a shaft member by vibration energy at the time of an earthquake in the vibration damper according to the first embodiment of the present invention. 本発明の実施形態１に係る制振ダンパーの使用形態として橋梁に適用した状態を示す模式図である。It is a schematic diagram which shows the state applied to the bridge as a use form of the vibration damper which concerns on Embodiment 1 of this invention. 本発明の実施形態２に係る制振ダンパーの概略構成を示す模式図である。It is a schematic diagram which shows the schematic structure of the vibration damper which concerns on Embodiment 2 of this invention. 図１１の制振ダンパーにおいて、せん断変形部材が一方向に塑性変位した状態を示す模式図である。FIG. 12 is a schematic diagram illustrating a state in which the shear deformation member is plastically displaced in one direction in the vibration damper of FIG. 11. 図１１に示す累積塑性変位量測定器の動作を説明するための模式図である。FIG. 12 is a schematic diagram for explaining the operation of the cumulative plastic displacement measurement device shown in FIG. 11. 図１１に示す累積塑性変位量測定器の動作を説明するための模式図である。FIG. 12 is a schematic diagram for explaining the operation of the cumulative plastic displacement measurement device shown in FIG. 11. 図１１に示す最大変位量測定器の動作を説明するための模式図である。FIG. 12 is a schematic diagram for explaining the operation of the maximum displacement measuring device shown in FIG. 11.

以下、図面を参照して本発明の実施形態を詳細に説明する。なお、本発明の実施形態を説明するための全図において、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する。
［実施形態１］
この実施形態１では、軸降伏型の制振ダンパーに本発明を適用した例について説明する。
図１（ａ），（ｂ）、図２（ａ），（ｂ）、図３（ａ），（ｂ）、図４（ａ），（ｂ）及び図５に示すように、本発明の実施形態１に係る制振ダンパー１Ａは、ダンパー本体２Ａと、累積塑性変位測定器３Ａと、変位測定器６Ａとを備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings for describing the embodiments of the present invention, components having the same functions are denoted by the same reference numerals, and repeated description thereof will be omitted.
[Embodiment 1]
In the first embodiment, an example in which the present invention is applied to a shaft yielding type vibration damper will be described.
As shown in FIGS. 1 (a), (b), FIGS. 2 (a), (b), FIGS. 3 (a), (b), FIGS. 4 (a), (b) and FIG. The vibration damper 1A according to the first embodiment includes a damper main body 2A, a cumulative plastic displacement measuring device 3A, and a displacement measuring device 6A.

ダンパー本体２Ａは、振動エネルギーを塑性変形により吸収して減衰する変形部と、この変形部の塑性変形により相対変位する２つの相対変位部とを備えている。この実施形態１において、変形部は、軸方向に作用する圧縮及び引張りの軸荷重を塑性変形により吸収して減衰する軸部材２１で構成されている。また、２つの相対変位部の一方は、軸部材２１を内挿する補剛部材２２で構成され、２つの相対変位部の他方は、軸部材２１の軸方向の両端にそれぞれ個別に設けられた一対の連結部材２３ａ，２３ｂのうちの一方の連結部材２３ａで構成されている。   The damper main body 2A includes a deforming portion that absorbs and attenuates vibration energy by plastic deformation, and two relative displacement portions that relatively displace by plastic deformation of the deforming portion. In the first embodiment, the deformed portion includes a shaft member 21 that absorbs and attenuates axial and compressive axial loads acting in the axial direction by plastic deformation. One of the two relative displacement portions is constituted by a stiffening member 22 that interpolates the shaft member 21, and the other of the two relative displacement portions is individually provided at both axial ends of the shaft member 21. It is constituted by one connecting member 23a of a pair of connecting members 23a and 23b.

軸部材２１は、履歴減衰特性（塑性変形に伴うエネルギー減衰特性）を有する普通鋼又は低降伏点鋼の鋼管からなる。そして、軸部材２１は、軸方向に作用する軸荷重に対して伸縮して降伏する。補剛部材２２は、軸部材２１に軸方向の圧縮荷重が作用したときに軸部材２１の座屈を防止するようになっており、例えば円筒形状で形成されている。一対の連結部材２３ａ，２３ｂは、橋梁、水門、ボックスカルバートなどの土木構造物や、ビル、塔、倉庫などの建築構造物に制振ダンパー１Ａを取り付けるときの継ぎ手として用いられる。一対の連結部材２３ａ，２３ｂとしてはボルト接合タイプやピン接合タイプがあるが、この実施形態１ではピン接合タイプを採用している。   The shaft member 21 is made of a steel pipe of ordinary steel or low-yield-point steel having hysteresis damping characteristics (energy damping characteristics accompanying plastic deformation). Then, the shaft member 21 expands and contracts with respect to an axial load acting in the axial direction, and yields. The stiffening member 22 is configured to prevent buckling of the shaft member 21 when a compressive load in the axial direction acts on the shaft member 21, and is formed, for example, in a cylindrical shape. The pair of connecting members 23a and 23b are used as joints when attaching the vibration damper 1A to civil engineering structures such as bridges, floodgates, box culverts, and building structures such as buildings, towers, and warehouses. As the pair of connecting members 23a and 23b, there are a bolt connection type and a pin connection type. In the first embodiment, the pin connection type is employed.

累積塑性変位測定器３Ａは、軸部材２１が軸方向の塑性変形により複数回に亘って繰り返し変位した累積塑性変位量を測定するためのものである。そして、累積塑性変位測定器３Ａは、補剛部材２２と連結部材２３ａとの間で生じる相対変位を利用して移動プレート３２を移動し、この移動プレート３２の移動量で軸部材２１の累積塑性変位量を測定するものである。   The accumulative plastic displacement measuring device 3A is for measuring the accumulative plastic displacement in which the shaft member 21 is repeatedly displaced a plurality of times by plastic deformation in the axial direction. Then, the cumulative plastic displacement measuring device 3A moves the movable plate 32 using the relative displacement generated between the stiffening member 22 and the connecting member 23a, and the cumulative plastic displacement of the shaft member 21 is determined by the amount of movement of the movable plate 32. It measures the amount of displacement.

図２（ａ），（ｂ）及び図４（ａ），（ｂ）に示すように、累積塑性変位測定器３Ａは、補剛部材２２に設けられた一対のガイドレール３１ａ，３１ｂと、一対のガイドレール３１ａ，３１ｂに軸部材２１（図１及び図２参照）の軸方向に移動自在に支持された移動プレート３２と、を備えている。また、累積塑性変位測定器３Ａは、一端側が移動プレート３２の一主面上に位置し、他端側が連結部材２３ａに支持され、かつ補剛部材２２と連結部材２３ａとの相対変位に伴って軸部材２１の軸方向に移動するアーム部材３３Ａを備えている。また、累積塑性変位測定器３Ａは、軸部材２１が第１方向に変形して補剛部材２２と連結部材２３ａとが相対変位したときに移動プレート３２がアーム部材３３Ａの移動に伴って移動し、軸部材２１が第１方向とは反対方向の第２方向に変形して補剛部材２２と連結部材２３ａとが相対変位したときにアーム部材３３Ａが移動プレート３２に対して相対移動するようにして移動プレート３２の移動方向を第１方向に制限する移動方向制限機構３５を備えている。また、累積塑性変位測定器３Ａは、移動プレート３２の移動を妨げる抵抗力を移動プレート３２に付加する抵抗付加機構４１を備えている。この抵抗付加機構４１は、軸部材２１が第１方向に塑性変形して補剛部材２２と連結部材２３ａとが相対変位したときの移動プレート３２の移動量を制限する。   As shown in FIGS. 2A and 2B and FIGS. 4A and 4B, the cumulative plastic displacement measuring device 3A includes a pair of guide rails 31a and 31b provided on the stiffening member 22 and a pair of guide rails 31a and 31b. And a movable plate 32 supported on the guide rails 31a and 31b so as to be movable in the axial direction of the shaft member 21 (see FIGS. 1 and 2). The cumulative plastic displacement measuring device 3A has one end located on one main surface of the movable plate 32, the other end supported by the connecting member 23a, and with the relative displacement between the stiffening member 22 and the connecting member 23a. An arm member 33A that moves in the axial direction of the shaft member 21 is provided. When the shaft member 21 is deformed in the first direction and the stiffening member 22 and the connecting member 23a are relatively displaced, the moving plate 32 moves with the movement of the arm member 33A. The arm member 33A moves relative to the moving plate 32 when the shaft member 21 is deformed in the second direction opposite to the first direction and the stiffening member 22 and the connecting member 23a are relatively displaced. A moving direction restricting mechanism 35 for restricting the moving direction of the moving plate 32 to the first direction. In addition, the cumulative plastic displacement measuring device 3A includes a resistance adding mechanism 41 that applies a resistance force to the moving plate 32 to hinder the movement of the moving plate 32. The resistance adding mechanism 41 limits the amount of movement of the movable plate 32 when the shaft member 21 is plastically deformed in the first direction and the stiffening member 22 and the connecting member 23a are relatively displaced.

ここで、補剛部材２２と連結部材２３ａとの相対変位は、軸部材２１の軸方向の伸縮によって生じる。そして、軸部材２１の軸方向の伸縮は、軸方向に作用する圧縮及び引張りの軸荷重により生じる。したがって、この実施形態１では、軸部材２１が縮小する縮小方向及び軸部材２１が圧縮される圧縮方向を第１方向と定義し、軸部材２１が伸張する伸張方向及び軸部材２１が引っ張られる引張り方向を第１方向とは反対方向の第２方向と定義するが、その逆くでもよいことは勿論である。以下、この実施形態１では、説明を分かりやすくするため、第１方向を圧縮方向Ｃｐと呼び、第２方向を引張り方向Ｔｓと呼ぶ。   Here, the relative displacement between the stiffening member 22 and the connecting member 23a is caused by the expansion and contraction of the shaft member 21 in the axial direction. The expansion and contraction of the shaft member 21 in the axial direction is caused by axial and compressive and tensile loads acting in the axial direction. Therefore, in the first embodiment, the contraction direction in which the shaft member 21 contracts and the compression direction in which the shaft member 21 is compressed are defined as the first direction, and the extension direction in which the shaft member 21 extends and the tension in which the shaft member 21 is pulled. The direction is defined as a second direction opposite to the first direction, but it goes without saying that the direction may be reversed. Hereinafter, in the first embodiment, the first direction is referred to as a compression direction Cp, and the second direction is referred to as a pulling direction Ts, for easy understanding.

なお、連結部材２３ａは軸部材２１の一端部に設けられているので、補剛部材２２と連結部材２３ａとの相対変位は、補剛部材２２と軸部材２１との相対変位を意味する。
移動プレート３２は、一端側が補剛部材２２の長手方向の中央部側に位置し、他端側が補剛部材２２の端部側に位置するように軸部材２１の軸方向に沿って延長している。アーム部材３３Ａは、軸部材２１の軸方向に延長し、補剛部材２２の一端部を横切るように配置されている。そして、アーム部材３３Ａは、一端側が移動プレート３２と重畳するようにして配置されている。アーム部材３３Ａの他端側は、アーム支持部材４６を介して連結部材２３ａに固定され、このアーム支持部材４６及び連結部材２３ａを介して軸部材２１に支持されている。また、アーム部材３３Ａは、他端側を支点にして一端側が移動プレート３２に対して上下方向に撓む可撓性を有している。 Since the connecting member 23a is provided at one end of the shaft member 21, the relative displacement between the stiffening member 22 and the connecting member 23a means the relative displacement between the stiffening member 22 and the shaft member 21.
The moving plate 32 extends along the axial direction of the shaft member 21 such that one end is located at the center in the longitudinal direction of the stiffening member 22 and the other end is located at the end of the stiffening member 22. I have. The arm member 33A extends in the axial direction of the shaft member 21 and is disposed so as to cross one end of the stiffening member 22. The arm member 33 </ b> A is arranged such that one end side overlaps with the moving plate 32. The other end of the arm member 33A is fixed to the connecting member 23a via the arm supporting member 46, and is supported by the shaft member 21 via the arm supporting member 46 and the connecting member 23a. The arm member 33 </ b> A has flexibility in which one end is vertically bent with respect to the movable plate 32 with the other end serving as a fulcrum.

移動方向制限機構３５は、図２（ａ），（ｂ）及び図４（ａ），（ｂ）に示すように、移動プレート３２の一主面に移動プレート３２の長手方向に沿って配列された複数の第１突起３６と、アーム部材３３Ａの一端側に設けられ、軸部材２１が圧縮方向Ｃｐ（第１方向）に変形して補剛部材２２と連結部材２３ａとが相対変位したときに第１突起３６に引っ掛かり、軸部材２１が引張り方向Ｔｓ（第２方向）に変形して補剛部材２２と連結部材２３ａとが相対変位したときに第１突起３６を乗り越えて移動するフック３７とを備えている。フック３７は、アーム部材３３Ａの厚さ方向においてアーム部材３３Ａの一端側から移動プレート３２の一主面に向かって突出し、先端が第１突起３６と接するようにして設けられている。   The moving direction restricting mechanism 35 is arranged on one main surface of the moving plate 32 along the longitudinal direction of the moving plate 32, as shown in FIGS. 2 (a) and 2 (b) and FIGS. 4 (a) and 4 (b). The plurality of first protrusions 36 and one end of the arm member 33A are provided, and when the shaft member 21 is deformed in the compression direction Cp (first direction) and the stiffening member 22 and the connecting member 23a are relatively displaced. A hook 37 that is hooked on the first protrusion 36 and moves over the first protrusion 36 when the shaft member 21 is deformed in the tension direction Ts (second direction) and the stiffening member 22 and the connecting member 23a are relatively displaced; It has. The hook 37 protrudes from one end side of the arm member 33A toward one main surface of the movable plate 32 in the thickness direction of the arm member 33A, and is provided such that the tip thereof contacts the first protrusion 36.

第１突起３６は、図６（ａ），（ｂ），（ｃ）及び図７（ａ），（ｂ），（ｃ）に示すように、軸部材２１が圧縮方向Ｃｐに変形して補剛部材２２と連結部材２３ａとが相対変位したときにフック３７が引っ掛かる側面部３６ａと、軸部材２１が圧縮方向Ｃｐに変形して補剛部材２２と連結部材２３ａとが相対変位したときにフック３７を移動プレート３２に対して上方に押し上げる第１斜面部３６ｂとを有している。そして、フック３７は、側面部３６ａと対向し、かつ側面部３６ａを押圧する押圧側面部３７ａと、第１斜面部３６ｂと同一方向に傾斜し、第１斜面部３６ｂを滑りながら移動する移動斜面部３７ｂとを有している。   As shown in FIGS. 6 (a), (b), (c) and FIGS. 7 (a), (b), (c), the first projections 36 compensate for the shaft member 21 deforming in the compression direction Cp. A side surface portion 36a on which the hook 37 is hooked when the rigid member 22 and the connecting member 23a are displaced relative to each other, and a hook when the shaft member 21 is deformed in the compression direction Cp and the stiffening member 22 and the connecting member 23a are displaced relative to each other. And a first slope portion 36b that pushes the 37 upward with respect to the moving plate 32. The hook 37 is opposed to the side surface portion 36a, and a pressing side surface portion 37a that presses the side surface portion 36a, and a moving slope that inclines in the same direction as the first slope portion 36b and moves while sliding on the first slope portion 36b. Part 37b.

側面部３６ａは、移動プレート３２の厚さ方向及び幅方向に延長している。第１斜面部３６ｂは、第１突起３６の頂部から移動プレート３２の移動方向、すなわち移動プレート３２の一端側に向かって第１突起３６の高さが徐々に低くなる方向に傾斜し、移動プレート３２の幅方向に延長している。押圧側面部３７ａは、アーム部材３３Ａの厚さ方向及び幅方向に延長している。移動斜面部３７ｂは、フック３７の先端部からアーム部材３３Ａの他端側に向かってフック３７の高さが徐々に低くなる方向に傾斜し、移動プレート３２の幅方向に延長している。   The side surface portion 36a extends in the thickness direction and the width direction of the moving plate 32. The first slope portion 36 b is inclined from the top of the first protrusion 36 in the moving direction of the moving plate 32, that is, in the direction in which the height of the first protrusion 36 gradually decreases toward one end of the moving plate 32, 32 extending in the width direction. The pressing side portion 37a extends in the thickness direction and the width direction of the arm member 33A. The moving slope portion 37b is inclined in a direction in which the height of the hook 37 gradually decreases from the tip of the hook 37 toward the other end of the arm member 33A, and extends in the width direction of the moving plate 32.

抵抗付加機構４１は、図２（ａ），（ｂ）及び図４（ａ），（ｂ）に示すように、補剛部材２２と移動プレート３２との間に、移動プレート３２の長手方向に互いに離間して配置された一対のベースプレート４２ａ，４２ｂと、一対のベースプレート４２ａ，４２ｂの間に配置され、両端が一対のベースプレート４２ａ，４２ｂに支持されて中央部が一対のベースプレート４２ａ，４２ｂよりも突出した摩擦バネ４３とを備えている。また、抵抗付加機構４１は、移動プレート３２の一主面と対向する裏面に移動プレート３２の長手方向に沿って配列され、軸部材２１が圧縮方向Ｃｐに変形して補剛部材２２と連結部材２３ａとが圧縮方向Ｃｐに相対変位したときに摩擦バネ４３を下方に押し下げながら摩擦バネ４３の中央部（頂部）を乗り越えて移動する複数の第２突起４４を備えている。   As shown in FIGS. 2A and 2B and FIGS. 4A and 4B, the resistance adding mechanism 41 is disposed between the stiffening member 22 and the moving plate 32 in the longitudinal direction of the moving plate 32. A pair of base plates 42a, 42b spaced apart from each other and a pair of base plates 42a, 42b are disposed, and both ends are supported by the pair of base plates 42a, 42b. And a protruding friction spring 43. In addition, the resistance adding mechanism 41 is arranged along the longitudinal direction of the moving plate 32 on the back surface opposite to one main surface of the moving plate 32, and the shaft member 21 is deformed in the compression direction Cp, and the stiffening member 22 and the connecting member A plurality of second protrusions 44 are provided that move over the center (top) of the friction spring 43 while pushing down the friction spring 43 when the relative movement between the projection 23a and the compression spring 23a in the compression direction Cp.

第２突起４４は、図６（ａ），（ｂ），（ｃ）及び図７（ａ），（ｂ），（ｃ）に示すように、移動プレート３２の長手方向において互いに反対側に位置する一対の第２斜面部４４ａ，４４ｂを有している。一対の第２斜面部４４ａ，４４ｂは、移動プレート３２の長手方向において、第２突起４４の幅が頂部から麓部に向かって徐々に広くなる方向に傾斜しているとともに、移動プレート３２の幅方向に延伸している。   As shown in FIGS. 6 (a), (b), (c) and FIGS. 7 (a), (b), (c), the second protrusions 44 are located on opposite sides of the moving plate 32 in the longitudinal direction. And a pair of second slope portions 44a and 44b. The pair of second slope portions 44a and 44b are inclined in the longitudinal direction of the moving plate 32 so that the width of the second protrusion 44 gradually increases from the top to the foot, and the width of the moving plate 32 is increased. Stretched in the direction.

累積塑性変位測定器３Ａは、図５に示す構造に限定されないが、例えば移動プレート３２の幅方向において互いに反対側に位置する２つの側面部を一対のガイドレール３１ａ，３１ｂで支持する構造になっている。具体的には、移動プレート３２は、幅方向の２つの側面部の各々に長手方向に延長する溝部３２ａを有している。そして、この２つの溝部３２ａの各々に一対のガイドレール３１ａ，３１ｂが挿入され、移動プレート３２が軸部材２１の軸方向に移動自在に移動するように支持される。一対のガイドレール３１ａ，３１ｂは、図２及び図４に示すように、移動プレート３２が一対のベースプレート４１ａ，４１ｂから離間して移動するように、レール支持部材４７を介して一対のベースプレート４１ａ，４１ｂに固定されている。また、一対のガイドレール３１ａ，３１ｂは、一対のベースプレート４２ａ，４２ｂを跨って軸部材２１の軸方向に沿って延長している。   The cumulative plastic displacement measuring device 3A is not limited to the structure shown in FIG. 5, but has a structure in which, for example, two side surfaces located on opposite sides in the width direction of the moving plate 32 are supported by a pair of guide rails 31a and 31b. ing. Specifically, the moving plate 32 has a groove 32a extending in the longitudinal direction on each of the two side surfaces in the width direction. A pair of guide rails 31a and 31b are inserted into each of the two groove portions 32a, and the movable plate 32 is supported so as to be movable in the axial direction of the shaft member 21. As shown in FIGS. 2 and 4, the pair of guide rails 31a and 31b are connected via a pair of base plates 41a and 41b via a rail support member 47 so that the movable plate 32 moves away from the pair of base plates 41a and 41b. 41b. The pair of guide rails 31a and 31b extend along the axial direction of the shaft member 21 across the pair of base plates 42a and 42b.

また、累積塑性変位測定器３Ａは、図２（ａ），（ｂ），（ｃ）及び図４（ａ），（ｂ），（ｃ）に示すように、補剛部材２２に設けられ、かつ移動プレート３２の移動量に対応して区分され、異なった色で表示された複数の表示領域、例えば３つの表示領域５１ａ，５１ｂ，５１ｃを有する累積塑性変位量表示部５を更に備えている。そして、移動プレート３２は、一端側に指針５２を有している。   The cumulative plastic displacement measuring device 3A is provided on the stiffening member 22, as shown in FIGS. 2 (a), (b), (c) and FIGS. 4 (a), (b), (c). Further, the apparatus further includes a cumulative plastic displacement amount display section 5 having a plurality of display areas, for example, three display areas 51a, 51b, and 51c, which are divided according to the amount of movement of the movable plate 32 and are displayed in different colors. . The moving plate 32 has a pointer 52 at one end.

累積塑性変位量表示部５は、一対のベースプレート４２ａ，４２ｂのうち、累積塑性変位測定器３Ａから遠い方のベースプレート４２ｂの隣に補剛部材２２の円周方向に併設して配置されている。指針５２は、補剛部材２２の円周方向と接する接線方向に沿って延長している。そして、指針５２は、一端側とは反対側の他端側が移動プレート３２の一端側に連結されている。指針５２の一端側は、累積塑性変位量表示部５に向かって突出している。   The cumulative plastic displacement amount display section 5 is disposed adjacent to the base plate 42b of the pair of base plates 42a and 42b that is farther from the cumulative plastic displacement measuring device 3A in the circumferential direction of the stiffening member 22. The pointer 52 extends along a tangential direction that contacts the circumferential direction of the stiffening member 22. The other end of the pointer 52 opposite to the one end is connected to one end of the movable plate 32. One end of the pointer 52 projects toward the accumulated plastic displacement amount display section 5.

３つの表示領域５１ａ，５１ｂ，５１ｃの各々は、補剛部材２２の一端側から他端側に向かって順次配置されている。表示領域５１ａは例えば青色、表示領域５１ｂは例えば黄色、表示領域５１ｃは例えば赤色で表示されている。３つの表示領域５１ａ，５１ｂ，５１ｃの各々は、軸部材２１の累積塑性変位量に対応して識別されており、青色の表示領域５１ａ、黄色の表示領域５１ｂ、赤色の表示領域５１ｃの順に累積塑性変位量が多くなることを示している。   Each of the three display areas 51a, 51b, 51c is sequentially arranged from one end side of the stiffening member 22 to the other end side. The display area 51a is displayed in blue, for example, the display area 51b is displayed in yellow, and the display area 51c is displayed in red, for example. Each of the three display areas 51a, 51b, and 51c is identified according to the accumulated plastic displacement of the shaft member 21, and is accumulated in the order of a blue display area 51a, a yellow display area 51b, and a red display area 51c. This indicates that the amount of plastic displacement increases.

累積塑性変位測定器３Ａにおいて、軸部材２１の累積塑性変位量の測定開始前の段階では、移動プレート３２の一端側の先端部（指針５２）は、基準位置Ｌａ１に位置している。そして、塑性変形量の累積に伴って移動プレート３２が軸部材２１の圧縮方向Ｃｐに移動するため、移動プレート３２の一端側の先端部（指針５２）が基準位置Ｌａ１から圧縮方向Ｃｐに移動した移動位置Ｌａ２までの距離で累積塑性変位量ΣＣを見出すことができる。   In the cumulative plastic displacement measuring device 3A, at the stage before the measurement of the cumulative plastic displacement of the shaft member 21 is started, the tip (the pointer 52) at one end of the movable plate 32 is located at the reference position La1. Since the moving plate 32 moves in the compression direction Cp of the shaft member 21 with the accumulation of the amount of plastic deformation, the distal end (the pointer 52) at one end of the moving plate 32 moves in the compression direction Cp from the reference position La1. The accumulated plastic displacement ΔC can be found from the distance to the movement position La2.

変位測定器６Ａは、軸部材２１が軸方向の変形により変位した変位量を測定するものである。そして、変位測定器６Ａは、補剛部材２２と連結部材２３ａとの間で生じる相対変位を利用して軸部材２１の変位量を測定するものである。この変位測定器６Ａは累積塑性変位測定器３Ａの隣に補剛部材２２の円周方向に併設して配置されている。
図２（ａ），（ｂ）及び図４（ａ），（ｂ）に示すように、変位測定器６Ａは、各々の長さが伸縮自在に変化し、各々の先端部６１ａ，６２ａが互いに向かい合うように配置され、かつ各々の先端部６１ａ，６２ａが補剛部材２２と連結部材２３ａとの相対変位方向Ｒｄに移動するように補剛部材２２に支持された第１伸縮部材６１及び第２伸縮部材６２を備えている。また、変位測定器６Ａは、連結部材２３ａに支持され、かつ第１伸縮部材６１及び第２伸縮部材６２の各々の先端部６１ａ，６２ａを横切るように配置された変位板６３を備えている。 The displacement measuring device 6A measures the amount of displacement of the shaft member 21 due to deformation in the axial direction. The displacement measuring device 6A measures the displacement amount of the shaft member 21 using the relative displacement generated between the stiffening member 22 and the connecting member 23a. The displacement measuring device 6A is arranged adjacent to the cumulative plastic displacement measuring device 3A in the circumferential direction of the stiffening member 22.
As shown in FIGS. 2 (a) and 2 (b) and FIGS. 4 (a) and 4 (b), in the displacement measuring device 6A, the lengths of the displacement measuring devices 6A change in a flexible manner, and the tip portions 61a and 62a A first telescoping member 61 and a second telescoping member 61 which are disposed so as to face each other, and are supported by the stiffening member 22 such that the respective distal end portions 61a and 62a move in the relative displacement direction Rd between the stiffening member 22 and the connecting member 23a An elastic member 62 is provided. In addition, the displacement measuring device 6A includes a displacement plate 63 supported by the connecting member 23a and disposed so as to cross the respective distal end portions 61a and 62a of the first elastic member 61 and the second elastic member 62.

第１伸縮部材６１及び第２伸縮部材６２の各々は、長尺状で径が異なる複数のロッドが摺動して互いに軸方向に伸縮可能に連結された多段収納式の構成になっている。そして、第１伸縮部材６１及び第２伸縮部材６２の各々は、伸張した状態から先端部６１ａ，６２ａを変位板６３により押圧することで縮小し、縮小した状態から先端部６１ａ，６１ｂを引っ張ることで伸張状態に戻すことができる。   Each of the first telescopic member 61 and the second telescopic member 62 has a multistage storage configuration in which a plurality of elongated rods having different diameters slide and are connected to each other so as to be able to expand and contract in the axial direction. Each of the first telescopic member 61 and the second telescopic member 62 contracts by pressing the distal end portions 61a, 62a from the extended state by the displacement plate 63, and pulls the distal end portions 61a, 61b from the contracted state. To return to the stretched state.

変位測定器６Ａは累積塑性変位測定器３Ａの隣に補剛部材２２の円周方向に併設して配置されている。変位板６３は、補剛部材２２の円周方向と接する接線方向に沿って延長している。そして、変位板６３は、一端側とは反対側の他端側がアーム部材３３Ａの一端側と他端側との間の中間部に連結され、このアーム部材３３Ａ及びアーム支持部材４６を介して連結部材２３ａに支持されている。変位板６３の一端側は、第１伸縮部材６１の先端部６１ａと第２伸縮部材６２の先端部６２ａとを結ぶ仮想線を横切って延長している。   The displacement measuring device 6A is arranged next to the cumulative plastic displacement measuring device 3A in the circumferential direction of the stiffening member 22. The displacement plate 63 extends along a tangential direction that contacts the circumferential direction of the stiffening member 22. The other end of the displacement plate 63 opposite to the one end is connected to an intermediate portion between the one end and the other end of the arm member 33A, and is connected via the arm member 33A and the arm support member 46. It is supported by the member 23a. One end of the displacement plate 63 extends across an imaginary line connecting the distal end portion 61a of the first elastic member 61 and the distal end portion 62a of the second elastic member 62.

また、変位測定器６Ａは、図２（ａ），（ｂ）及び図４（ａ），（ｂ）に示すように、補剛部材２２に設けられ、かつ第１伸縮部材６１及び第２伸縮部材６２の各々の先端部６１ａ，６２ａの移動量に対応して区分され、異なった色で表示された複数の表示領域、例えば１つの表示領域６５ａ，２つの表示領域６５ｂ，２つの表示領域６５ｃを有する変位量表示部６５を更に備えている。   As shown in FIGS. 2A and 4B and FIGS. 4A and 4B, the displacement measuring device 6A is provided on the stiffening member 22 and has a first telescopic member 61 and a second telescopic member. A plurality of display areas that are divided according to the amount of movement of the distal ends 61a and 62a of the member 62 and are displayed in different colors, for example, one display area 65a, two display areas 65b, and two display areas 65c. Is further provided.

変位量表示部６５は、第１伸縮部材６１及び第２伸縮部材６２の隣に補剛部材２２の円周方向に併設して配置されている。そして、変位量表示部６５は、補剛部材２２の軸方向に沿って延長している。
１つの表示領域６５ａは変位量表示部６５の中央部に配置されている。２つの表示領域６５ｂは、表示領域６５ａを挟んで表示領域６５ａの両側にそれぞれ配置されている。そして、２つの表示領域６５ｃは、１つの表示領域６５ａ及び２つの表示領域６５ｂを挟んでこれらの外側にそれぞれ配置されている。これらの表示領域６５ｃ，６５ｂ，６５ａ，６５ｂ，６５ｃの各々は軸部材２１の軸方向に沿って順次配置されている。表示領域６５ａは例えば青色、表示領域６５ｂは例えば黄色、表示領域６５ｃは例えば赤色で表示されている。この５つの表示領域６５ｃ，６５ｂ，６５ａ，６５ｂ，６５ｃの各々は、第１伸縮部材６１及び第２伸縮部材６２の各々の先端部６１ａ，６２ａの移動量に対応して識別されており、青色の表示領域６５ａ、黄色の表示領域６５ｂ、赤色の表示領域６５ｃの順に最大変位量が増加することを示している。 The displacement amount display section 65 is arranged adjacent to the first elastic member 61 and the second elastic member 62 in the circumferential direction of the stiffening member 22. Further, the displacement amount display section 65 extends along the axial direction of the stiffening member 22.
One display area 65 a is arranged at the center of the displacement amount display section 65. The two display areas 65b are arranged on both sides of the display area 65a with the display area 65a interposed therebetween. The two display areas 65c are arranged outside the one display area 65a and the two display areas 65b, respectively. Each of these display areas 65c, 65b, 65a, 65b, 65c is sequentially arranged along the axial direction of the shaft member 21. The display area 65a is displayed in blue, for example, the display area 65b is displayed in yellow, and the display area 65c is displayed in red, for example. Each of the five display areas 65c, 65b, 65a, 65b, 65c is identified in accordance with the amount of movement of the distal end portion 61a, 62a of each of the first elastic member 61 and the second elastic member 62, and has a blue color. , The maximum displacement increases in the order of the display area 65a, the yellow display area 65b, and the red display area 65c.

図１０は、本発明の実施形態１に係る制振ダンパー１Ａの使用形態として橋梁に適用した状態を示す図である。
図１０に示すように、橋梁７０は、地中（不図示）から立設している柱部７１と、柱部７１の上端に配置された上部工７２とを備え、上部工７２が温度や変形で伸縮する場合に、柱部７１や上部工７２に余分な応力が加わらないように、柱部７１の上端と上部工７２との間に、上部工７２を長手方向（図１０の左右方向）に移動可能とする可動支承７５が設置されている。上部工７２は、柱部７１を横切るようにして柱部７１の上端上に配置されている。柱部７１の側面上部７１ａには柱部側ブラケット７３が設けられ、上部工７２の下面７２ａには上部工側ブラケット７４が設けられている。 FIG. 10 is a diagram illustrating a state in which the vibration damper 1A according to the first embodiment of the present invention is applied to a bridge as a usage pattern.
As shown in FIG. 10, the bridge 70 includes a column 71 erected from underground (not shown) and a superstructure 72 disposed at an upper end of the column 71. When extending and contracting due to deformation, the superstructure 72 is placed between the upper end of the column 71 and the superstructure 72 in the longitudinal direction (the left-right direction in FIG. 10) so that extra stress is not applied to the column 71 and the superstructure 72. A movable bearing 75 is provided so as to be movable in (). The superstructure 72 is disposed on the upper end of the column 71 so as to cross the column 71. A column part bracket 73 is provided on an upper side surface 71 a of the column part 71, and a superstructure side bracket 74 is provided on a lower surface 72 a of the superstructure 72.

本発明の実施形態１に係る制振ダンパー１Ａは、柱部７１及び上部工４で仕切られた空間内に、上部工４の長手方向に沿うようにして配置されている。そして、制振ダンパー１Ａは、一端側の連結部材２３ａが上部工側ブラケット７４に回動自在に連結され、他端側の連結部材２３ｂが柱部７１の柱部側ブラケット７３に回動自在に連結されている。そして、このように配置された制振ダンパー１Ａは、地震により柱部７１と上部工７２との水平方向の相対変位７６で発生した振動エネルギーを軸部材２１の軸方向７７の塑性変形により吸収して減衰し、上部工７２の長手方向に沿う１軸方向の制振を行う。   The vibration damper 1 </ b> A according to the first embodiment of the present invention is disposed in a space partitioned by the column 71 and the superstructure 4 along the longitudinal direction of the superstructure 4. In the vibration damper 1A, the connecting member 23a on one end side is rotatably connected to the upper bracket 74, and the connecting member 23b on the other end side is rotatably connected to the column bracket 73 of the column 71. Are linked. The vibration damper 1A thus arranged absorbs the vibration energy generated by the horizontal relative displacement 76 between the column 71 and the superstructure 72 due to the earthquake due to the plastic deformation of the shaft member 21 in the axial direction 77. Then, the vibration is attenuated, and the vibration is suppressed in one axial direction along the longitudinal direction of the superstructure 72.

次に、図６及び図７を参照して累積塑性変位測定器３Ａの動作を説明しながら実施形態１の効果を説明する。
図１０に示す制振ダンパー１Ａは、地震により柱部７１と上部工７２との水平方向の相対変位７６で発生した振動エネルギーにより軸方向に作用する圧縮及び引張りの軸荷重を軸部材２１の圧縮方向Ｃｐ及び引張り方向Ｔｓの塑性変形により吸収して減衰する。 Next, the effect of the first embodiment will be described while describing the operation of the cumulative plastic displacement measuring device 3A with reference to FIGS.
The vibration damper 1 </ b> A shown in FIG. 10 applies compression and tension axial loads acting in the axial direction by vibration energy generated by horizontal relative displacement 76 between the column portion 71 and the superstructure 72 due to the earthquake. It is absorbed and attenuated by plastic deformation in the direction Cp and the tensile direction Ts.

軸部材２１が圧縮方向Ｃｐに塑性変形（縮小）して補剛部材２２と連結部材２３ａとが軸部材２１の圧縮方向Ｃｐに相対変位した場合、アーム部材３３Ａの移動と共にフック３７が、図６（ａ）に示す位置から図６（ｂ）に示すように、補剛部材２２に対して圧縮方向Ｃｐ（図６において左側）に相対移動する。そして、図６（ｂ）に示すように、フック３７が第１突起３６の側面部３６ａに引っ掛かって移動プレート３２を軸部材２１の圧縮方向に押し込む。このとき、第２突起４４が摩擦バネ４３を下方に押し下げることで摩擦バネ４３が下方に変形し、図６（ｃ）に示すように、第２突起４４が摩擦バネ４３の頂部（中央部）を乗り越えることにより移動プレート３２が軸部材２１の圧縮方向に移動する。すなわち、軸部材２１が圧縮方向Ｃｐに塑性変形して補剛部材２２と連結部材２３ａとが相対変位したときに移動プレート３２がアーム部材３３Ａの移動に伴って軸部材２１の圧縮方向Ｃｐに移動する。   When the shaft member 21 is plastically deformed (reduced) in the compression direction Cp and the stiffening member 22 and the connecting member 23a are relatively displaced in the compression direction Cp of the shaft member 21, the hook 37 is moved together with the movement of the arm member 33A, as shown in FIG. As shown in FIG. 6B, the stiffening member 22 is relatively moved from the position shown in FIG. 6A in the compression direction Cp (left side in FIG. 6). Then, as shown in FIG. 6B, the hook 37 is hooked on the side surface portion 36 a of the first projection 36 and pushes the moving plate 32 in the compression direction of the shaft member 21. At this time, when the second protrusion 44 pushes down the friction spring 43, the friction spring 43 is deformed downward, and as shown in FIG. 6C, the second protrusion 44 is moved to the top (center) of the friction spring 43. , The moving plate 32 moves in the compression direction of the shaft member 21. That is, when the shaft member 21 is plastically deformed in the compression direction Cp and the stiffening member 22 and the connecting member 23a are relatively displaced, the moving plate 32 moves in the compression direction Cp of the shaft member 21 with the movement of the arm member 33A. I do.

ここで、第２突起４４において２つの第２斜面部４４ａ，４４ｂがなす角度の１／２をαとする。そして、フック３７が第１突起３６の側面部３６ａに引っ掛かって移動プレート３２を軸部材２１の圧縮方向Ｃｐに押し込むときにフック３７に作用する反力をＦとする。そして、第２突起４４の移動により摩擦バネ４３に作用する反力をＲとする。そして、下記の（１）式となるように第２突起４４の第２斜面部４４ａ，４４ｂの傾斜を設定することにより、移動プレート３２は軸部材２１の圧縮方向に移動する。
Ｒ＜Ｆ・ｔａｎα ……（１） Here, α is defined as 角度 of the angle formed by the two second slope portions 44 a and 44 b in the second protrusion 44. The reaction force acting on the hook 37 when the hook 37 is hooked on the side surface portion 36a of the first protrusion 36 and pushes the moving plate 32 in the compression direction Cp of the shaft member 21 is defined as F. The reaction force acting on the friction spring 43 due to the movement of the second protrusion 44 is represented by R. The movable plate 32 is moved in the compression direction of the shaft member 21 by setting the inclination of the second slope portions 44a and 44b of the second protrusion 44 so as to satisfy the following expression (1).
R <F · tanα (1)

一方、軸部材２１が引張り方向Ｔｓに変形（伸張）して補剛部材２２と連結部材２３ａとが軸部材２１の引張り方向Ｔｓに相対変位した場合、アーム部材３３Ａの移動と共にフック３７が、図７（ａ）に示す位置から図７（ｂ）に示すように、移動プレート３２に対して引張り方向Ｔｓに相対移動する。このきと、フック３７がアーム部材３３Ａの可撓性により第１突起３６の第１斜面部３６ｂを押圧するが、第１突起３６の第１斜面部３６ｂがフック３７を上方に押上げてアーム部材３３Ａが上方に撓むため、図７（ｃ）に示すように、移動プレート３２は軸部材２１の引張り方向には移動せず、アーム部材３３Ａ及びフック３７のみが移動する。すなわち、軸部材２１が引張り方向Ｔに変形して補剛部材２２と連結部材２３ａとが相対変位したときにアーム部材３３Ａが移動プレート３２に対して相対移動するようにして移動プレート３２の移動方向を軸部材２１の圧縮方向Ｃｐに限定する。   On the other hand, when the shaft member 21 is deformed (extended) in the tension direction Ts and the stiffening member 22 and the connecting member 23a are relatively displaced in the tension direction Ts of the shaft member 21, the hook 37 is moved together with the movement of the arm member 33A. As shown in FIG. 7 (b), it moves relative to the moving plate 32 in the tension direction Ts from the position shown in FIG. 7 (a). At this time, the hook 37 presses the first sloped portion 36b of the first projection 36 due to the flexibility of the arm member 33A, but the first sloped portion 36b of the first projection 36 pushes up the hook 37 to raise the arm. Since the member 33A bends upward, as shown in FIG. 7C, the moving plate 32 does not move in the direction in which the shaft member 21 is pulled, and only the arm member 33A and the hook 37 move. That is, when the shaft member 21 is deformed in the pulling direction T and the stiffening member 22 and the connecting member 23a are relatively displaced, the arm member 33A relatively moves with respect to the moving plate 32 so that the moving direction of the moving plate 32 is changed. In the compression direction Cp of the shaft member 21.

ここで、隣り合う２つの第１突起３６において、一方の第１突起３６の側面部３６ａと他方の第１突起３６の第１斜面部３６ｂとがなす角度をβとする。そして、フック３７が移動プレート３２に対して引張り方向Ｔｓに相対移動するときに移動プレート３２に作用する反力をＦとする。そして、下記の（２）式となるように第１斜面部３６ｂの傾斜を設定することにより、アーム部材３３Ａが移動プレート３２に対して上方に撓み、フック３７が第１突起３６を乗り越えて移動するため、移動プレート３２は移動せず、フック３７のみが軸部材２１の引張り方向Ｔｓに移動する。
Ｓ＜Ｆ・ｔａｎβ ……（２） Here, in two adjacent first protrusions 36, an angle formed by a side surface portion 36a of one first protrusion 36 and a first slope portion 36b of the other first protrusion 36 is β. The reaction force acting on the moving plate 32 when the hook 37 moves relative to the moving plate 32 in the pulling direction Ts is represented by F. By setting the inclination of the first slope portion 36b so as to satisfy the following equation (2), the arm member 33A bends upward with respect to the moving plate 32, and the hook 37 moves over the first protrusion 36. Therefore, the moving plate 32 does not move, and only the hook 37 moves in the pulling direction Ts of the shaft member 21.
S <F · tanβ (2)

以上のように、移動プレート３２は、軸部材２１が圧縮方向Ｃｐに変形したときに移動し、軸部材２１が引張り方向Ｔｓに変形したときには移動を抑止されるため、地震時に軸部材２１が圧縮方向Ｃｐの変形（縮小）及び引張り方向Ｔｓの変形（伸張）を繰り返したときに、軸部材２１の縮小側への変位量の累積分、移動プレート３２が軸部材２１の圧縮方向Ｃｐに移動する。   As described above, the moving plate 32 moves when the shaft member 21 is deformed in the compression direction Cp, and is suppressed when the shaft member 21 is deformed in the tensile direction Ts. When the deformation (reduction) in the direction Cp and the deformation (extension) in the tension direction Ts are repeated, the movable plate 32 moves in the compression direction Cp of the shaft member 21 by the cumulative amount of displacement of the shaft member 21 toward the reduction side. .

この移動プレート３２Ａの移動量を測定することにより、軸部材２１の圧縮方向Ｃｐの変位量の累積を計測することができる。また、この累積値を軸部材２１の全長で除することにより、累積圧縮塑性ひずみ量を推定することができる。
また、地震時には、軸部材２１がほぼ均等に圧縮と伸張を繰り返すため、この累積圧縮塑性歪み量を２倍にすることにより、軸部材２１の累積塑性歪み量を推定することができる。 By measuring the amount of movement of the moving plate 32A, the cumulative amount of displacement of the shaft member 21 in the compression direction Cp can be measured. By dividing the cumulative value by the total length of the shaft member 21, the cumulative compressive plastic strain can be estimated.
In addition, during an earthquake, since the shaft member 21 repeats compression and expansion almost uniformly, the cumulative plastic strain amount of the shaft member 21 can be estimated by doubling the cumulative compressive plastic strain amount.

累積塑性歪み量は、軸部材２１の低サイクル疲労限界を算定するための指標であることから、設置されている制振ダンパー１Ａの疲労寿命を累積塑性変位測定器３Ａにより外観から測定することができる。すなわち、制振ダンパー１Ａ及び累積塑性変位測定器３Ａは、制振ダンパー１Ａの累積塑性変形量を外観より測定することができる。
次に、図８を参照して変位測定器６Ａの動作を説明しながら実施形態１での効果を説明する。 Since the accumulated plastic strain amount is an index for calculating the low cycle fatigue limit of the shaft member 21, it is possible to measure the fatigue life of the installed vibration damper 1A from the appearance by the accumulated plastic displacement measuring device 3A. it can. That is, the vibration damper 1A and the cumulative plastic displacement measuring device 3A can measure the amount of cumulative plastic deformation of the vibration damper 1A from the appearance.
Next, the effects of the first embodiment will be described while explaining the operation of the displacement measuring device 6A with reference to FIG.

図８（ａ）に示すように、第１伸縮部材６１及び第２伸縮部材６２は、地震前の初期設定では変位板６３の両側で伸張状態であり、各々の先端部６１ａ，６２ａが変位板６３に接している。このときの第１伸縮部材６１の長さをＭ１とし、第２伸縮部材６２の長さをＭ２とする。
そして、地震時に軸部材２１が圧縮方向Ｃｐに変形して補剛部材２２と連結部材２３ａとが軸部材２１の圧縮方向Ｃｐに相対変位すると、図８（ｂ）に示すように、アーム部材３３Ａの移動と共に変位板６３が補剛部材２２に対して圧縮方向Ｃｐに相対移動する。このとき、変位板６３が第１伸縮部材６１の先端部６１ａを圧縮方向Ｃｐに押圧しながら移動し、第１伸縮部材６１の長さが減少する。 As shown in FIG. 8A, the first telescopic member 61 and the second telescopic member 62 are in an extended state on both sides of the displacement plate 63 in the initial setting before the earthquake, and the respective distal end portions 61a and 62a are the displacement plates. It touches 63. At this time, the length of the first elastic member 61 is M1, and the length of the second elastic member 62 is M2.
When the shaft member 21 is deformed in the compression direction Cp during the earthquake and the stiffening member 22 and the connecting member 23a are relatively displaced in the compression direction Cp of the shaft member 21, as shown in FIG. The displacement plate 63 moves relative to the stiffening member 22 in the compression direction Cp along with the movement of. At this time, the displacement plate 63 moves while pressing the distal end portion 61a of the first elastic member 61 in the compression direction Cp, and the length of the first elastic member 61 decreases.

また、逆に軸部材２１が引張り方向Ｔｓに変形して補剛部材２２と連結部材２３ａとが軸部材２１の引張り方向Ｔｓに相対変位すると、図８（ｃ）に示すように、アーム部材３３Ａの移動と共に変位板６３が補剛部材２２に対して引張り方向Ｔｓに相対移動する。このとき、変位板６３が第２伸縮部材６２の先端部６２ａを引張り方向Ｔｓに押圧しながら移動し、第２伸縮部材６２の長さが減少する。   Conversely, when the shaft member 21 is deformed in the tension direction Ts and the stiffening member 22 and the connecting member 23a are relatively displaced in the tension direction Ts of the shaft member 21, as shown in FIG. The displacement plate 63 moves relative to the stiffening member 22 in the pulling direction Ts with the movement of. At this time, the displacement plate 63 moves while pressing the distal end portion 62a of the second elastic member 62 in the pulling direction Ts, and the length of the second elastic member 62 decreases.

地震後に第１伸縮部材６１及び第２伸縮部材６２のそれぞれの長さを測定すると、圧縮方向Ｃｐ及び引張り方向Ｔｓ（左右方向）での変位板６３の最大移動量を算定できる。そして、第１伸縮部材６１の長さの変化量が軸部材２１の最大縮小量Ｐ１となり、第２伸縮部材６２の長さの変化量が軸部材２１の最大伸張量Ｐ２となる。そして、第１伸縮部材６１及び第２伸縮部材６２のうち、長さの変化量の大きい方が、軸部材２１すなわち制振ダンパー１Ａの最大変位量となる。   By measuring the length of each of the first elastic member 61 and the second elastic member 62 after the earthquake, it is possible to calculate the maximum movement amount of the displacement plate 63 in the compression direction Cp and the tension direction Ts (left-right direction). Then, the amount of change in the length of the first elastic member 61 is the maximum contraction amount P1 of the shaft member 21, and the amount of change in the length of the second elastic member 62 is the maximum extension amount P2 of the shaft member 21. Then, of the first elastic member 61 and the second elastic member 62, the one with the larger change amount of the length becomes the maximum displacement amount of the shaft member 21, that is, the vibration damper 1A.

図９は、制振ダンパー１Ａにおいて、地震発生の際の振動エネルギーで軸部材２１に生じる変位状態の一例を示す図である。図中、横軸は軸部材２１の伸縮量を表し、縦軸は軸部材２１に付加される軸力を表す。また、破線は軸部材２１の弾性変形範囲を表し、実線のＣ１，Ｃ２，Ｃ３は圧縮方向Ｃｐでの塑性変位量であり、点線のＴ１，Ｔ２，Ｔ３は引張り方向Ｔｓでの塑性変位量である。   FIG. 9 is a diagram illustrating an example of a displacement state generated in the shaft member 21 by vibration energy at the time of the occurrence of an earthquake in the vibration damper 1A. In the figure, the horizontal axis represents the amount of expansion and contraction of the shaft member 21, and the vertical axis represents the axial force applied to the shaft member 21. The broken lines indicate the elastic deformation range of the shaft member 21, the solid lines C1, C2, and C3 are the plastic displacements in the compression direction Cp, and the dotted lines T1, T2, and T3 are the plastic displacements in the tensile direction Ts. is there.

制振ダンパー１Ａは、地震発生の際の振動エネルギーで軸方向に作用する圧縮及び引張りの軸荷重を軸部材２１の塑性変形により吸収して減衰する。図９から分かるように、軸部材２１は、地震発生の際の振動エネルギーで弾性変形及び塑性変形を繰り返す。したがって、Ｃ１〜Ｃ３の塑性変形量を加算することで圧縮方向Ｃｐでの累積塑性変位量（ΣＣ＝Ｃ１＋Ｃ２＋Ｃ３）を得ることができる。また、Ｔ１〜Ｔ３の塑性変形量を加算することで引張り方向Ｔｓでの累積塑性変位量（ΣＴ＝Ｔ１＋Ｔ２＋Ｔ３）を得ることができる。この実施形態１の累積塑性変位測定器３Ａでは、圧縮方向Ｃｐの累積塑性変位量（ΣＣ＝Ｃ１＋Ｃ２＋Ｃ３）を移動プレート３２の変位によって検出することができる。   The vibration damper 1 </ b> A absorbs and attenuates the compressive and tensile axial loads acting in the axial direction by the vibration energy at the time of the occurrence of the earthquake due to the plastic deformation of the shaft member 21. As can be seen from FIG. 9, the shaft member 21 repeats elastic deformation and plastic deformation with vibration energy at the time of the occurrence of an earthquake. Therefore, by adding the plastic deformation amounts of C1 to C3, the accumulated plastic displacement amount (ΔC = C1 + C2 + C3) in the compression direction Cp can be obtained. Further, by adding the plastic deformation amounts of T1 to T3, an accumulated plastic displacement amount (ΔT = T1 + T2 + T3) in the tensile direction Ts can be obtained. In the cumulative plastic displacement measuring device 3A of the first embodiment, the cumulative plastic displacement amount (ΔC = C1 + C2 + C3) in the compression direction Cp can be detected by the displacement of the movable plate 32.

図９では圧縮側最大変位量ＣmaxはＣ３であり、伸張側最大変位量ＴmaxはＴ３である。この実施形態１の変位測定器６Ａでは、圧縮側最大変位量ＣmaxであるＣ３を第１伸縮部材６１の長さの変化量（縮小量）によって検出することができ、引張り側最大変位量ＴmaxであるＴ３を第２伸縮部材の長さの変化量（縮小量）によって検出することができる。
また、第２突起４４のピッチをＢとし、軸部材２１の弾性変位幅をＥ（図９参照）とする。そして、下記の（３）式となるように設定することにより、軸部材２１が弾性変形により変位する弾性変位の範囲では移動プレート３２は移動しないので、軸部材２１の累積塑性変位量と区別することができる。ここで、弾性変位幅Ｅとは、補剛部材２２と連結部材２３ａとが軸部材２１の弾性変形により相対変位した相対変位量を意味する。
Ｂ＜Ｅ ……（３） In FIG. 9, the maximum displacement Cmax on the compression side is C3, and the maximum displacement Tmax on the extension side is T3. In the displacement measuring device 6A of the first embodiment, C3, which is the maximum displacement amount Cmax on the compression side, can be detected by the change amount (reduction amount) of the length of the first telescopic member 61, and the maximum displacement amount Tmax on the tension side can be detected. A certain T3 can be detected by a change amount (reduction amount) of the length of the second elastic member.
The pitch of the second protrusions 44 is B, and the elastic displacement width of the shaft member 21 is E (see FIG. 9). By setting the following equation (3), the movable plate 32 does not move within the range of elastic displacement in which the shaft member 21 is displaced by elastic deformation, and is distinguished from the accumulated plastic displacement of the shaft member 21. be able to. Here, the elastic displacement width E means a relative displacement amount in which the stiffening member 22 and the connecting member 23a are relatively displaced by the elastic deformation of the shaft member 21.
B <E (3)

なお、この実施形態１の累積塑性変位測定器３Ａでは、移動プレート３２の移動方向を圧縮方向Ｃｐに制限しているので、引張り方向Ｔｓの累積塑性変位量（ΣＴ＝Ｔ１＋Ｔ２＋Ｔ３）を直接検出することができない。しかしながら、移動プレート３２の移動方向を引張り方向Ｔｓに制限することで、引張り方向Ｔｓの累積塑性変位量（ΣＴ＝Ｔ１＋Ｔ２＋Ｔ３）を検出することができる。移動プレート３２の移動方向を引張り方向Ｔｓに制限するには、第１斜面部３６ｂ及び移動斜面部３７ｂの各々の傾斜方向を実施形態１とは逆向きにする。   Since the moving direction of the moving plate 32 is limited to the compression direction Cp in the cumulative plastic displacement measuring device 3A of the first embodiment, the cumulative plastic displacement amount (ΔT = T1 + T2 + T3) in the tensile direction Ts is directly detected. Can not. However, by limiting the moving direction of the moving plate 32 to the pulling direction Ts, it is possible to detect the accumulated plastic displacement amount (ΔT = T1 + T2 + T3) in the pulling direction Ts. In order to restrict the moving direction of the moving plate 32 to the pulling direction Ts, the respective inclination directions of the first inclined surface portion 36b and the moving inclined surface portion 37b are made opposite to those in the first embodiment.

また、移動プレート３２の移動方向を圧縮方向Ｃｐに制限した累積塑性変位測定器と、移動プレート３２の移動方向を引張り方向Ｔｓに制限した累積塑性変位測定器とを両方備えるようにしてもよい。
以上のように、この実施形態１によれば、制振ダンパー１Ａの累積塑性変位量を外観より測定することができる。また、この実施形態１によれば、制振ダンパー１Ａの最大変位量を外観より測定することができる。また、この実施形態１では、累積塑性変位測定器３Ａの移動プレート３２と変位測定器６Ａの変位板６３とがアーム部材３３Ａの動作により同時に動作するので、低コストで累積塑性変位測定器３Ａ及び変位測定器６Ａを制振ダンパー１Ａに装着することができる。 Further, both a cumulative plastic displacement measuring device in which the moving direction of the moving plate 32 is restricted in the compression direction Cp and a cumulative plastic displacement measuring device in which the moving direction of the moving plate 32 is restricted in the tensile direction Ts may be provided.
As described above, according to the first embodiment, the accumulated plastic displacement of the vibration damper 1A can be measured from the appearance. Further, according to the first embodiment, the maximum displacement amount of the vibration damper 1A can be measured from the appearance. Further, in the first embodiment, the moving plate 32 of the cumulative plastic displacement measuring instrument 3A and the displacement plate 63 of the displacement measuring instrument 6A operate simultaneously by the operation of the arm member 33A. The displacement measuring device 6A can be mounted on the vibration damper 1A.

［実施形態２］
この実施形態２では、せん断降伏型の制振ダンパーに本発明を適用した例について説明する。
図１１及び図１２に示すように、本発明の実施形態２である制振ダンパー１Ｂは、実施形態１の制振ダンパー１Ｂと同様に、ダンパー本体２Ｂと、累積塑性変位測定器３Ｂと、変位測定器６Ｂとを備えている。 [Embodiment 2]
In the second embodiment, an example in which the present invention is applied to a shear yielding type vibration damper will be described.
As shown in FIGS. 11 and 12, a vibration damper 1B according to a second embodiment of the present invention includes a damper body 2B, a cumulative plastic displacement measuring device 3B, and a displacement, similarly to the vibration damper 1B of the first embodiment. And a measuring device 6B.

ダンパー本体２Ｂは、実施形態１のダンパー本体２Ａと同様に振動エネルギーを塑性変形により吸収して減衰する変形部と、この変形部の変形により相対変位する２つの相対変位部とを備えている。この実施形態２において、変形部は、せん断方向の荷重を塑性変形により吸収するせん断変形部材２５で構成されている。また、２つの相対変位部材は、せん断方向に相対変位し、せん断方向と交差する方向において、せん断変形部材２５の両端にそれぞれ個別に設けられた一対の支持プレート２６ａ，２６ｂで構成されている。   The damper main body 2B includes a deforming portion that absorbs and attenuates vibration energy by plastic deformation and attenuates, and two relative displacement portions that perform relative displacement by deformation of the deforming portion, similarly to the damper main body 2A of the first embodiment. In the second embodiment, the deforming portion includes a shear deformation member 25 that absorbs a load in the shear direction by plastic deformation. In addition, the two relative displacement members are relatively displaced in the shear direction, and are constituted by a pair of support plates 26a and 26b individually provided at both ends of the shear deformation member 25 in a direction crossing the shear direction.

せん断変形部材２５は、履歴減衰特性（塑性変形に伴うエネルギー減衰特性）を有する普通鋼又は低降伏点鋼からなる矩形体で構成され、せん断方向に作用する荷重に対してせん断変形して降伏する。一対の支持プレート２６ａ，２６ｂは、橋梁、水門、ボックスカルバートなどの土木構造物や、ビル、塔、倉庫などの建築構造物に制振ダンパー１Ｂを取り付けるときの継ぎ手として用いられる。
累積塑性変位測定器３Ｂは、せん断変形部材２５がせん断方向の塑性変形により複数回に亘って繰り返し変位した累積塑性変位量を測定するためのものである。そして、累積塑性変位測定器３Ｂは、一対の支持プレート２６ａ，２６ｂの間で生じる相対変位を利用してせん断変形部材２５の累積塑性変位量を測定するものである。 The shear deformation member 25 is formed of a rectangular body made of ordinary steel or low-yield point steel having hysteresis damping characteristics (energy damping characteristics accompanying plastic deformation), and yields by shearing deformation with respect to a load acting in the shear direction. . The pair of support plates 26a and 26b are used as joints when attaching the vibration damper 1B to civil engineering structures such as bridges, floodgates, box culverts, and building structures such as buildings, towers, and warehouses.
The accumulative plastic displacement measuring device 3B is for measuring an accumulative plastic displacement amount in which the shear deformation member 25 is repeatedly displaced a plurality of times by plastic deformation in a shear direction. The cumulative plastic displacement measuring device 3B measures the cumulative plastic displacement of the shear deformation member 25 using the relative displacement generated between the pair of support plates 26a and 26b.

図１１及び図１２に示すように、累積塑性変位測定器３Ｂは、一対の支持プレート２６ａ，２６ｂのうちの一方の支持プレート２６ａに設けられている。そして、累積塑性変位測定器３Ｂは、実施形態１の累積塑性変位測定器３Ａと同様に、一対のガイドレール３１ａ，３１ｂと、移動プレート３２とを備えている。そして、累積塑性変位測定器３Ｂは、実施形態１の累積塑性変位測定器３Ａとは異なり、一端側が移動プレート３２の一主面上に位置し、他端側が他方の支持プレート２６ｂに支持され、かつ一方の支持プレート２６ａと他方の支持プレート２６ｂとの相対変位に伴ってせん断変形部材２５のせん断方向に移動するアーム部材３３Ｂを備えている。そして、累積塑性変位測定器３Ｂは、せん断変形部材２５が第１方向に変形して一対の支持プレート２６ａ，２６ｂが相対変位したときに移動プレート３２がアーム部材３３Ｂの移動に伴って移動し、せん断変形部材２５が第１方向とは反対方向の第２方向に変形して一対の支持プレート２６ａ，２６ｂが相対変位したときにアーム部材３３Ｂが移動プレート３２に対して相対移動するようにして移動プレート３２の移動方向を第１方向に制限する移動方向制限機構３５Ｂを備えている。そして、累積塑性変位測定器３Ｂは、実施形態１の累積塑性変位測定器３Ａと同様に移動プレート３２の移動を妨げる抵抗力を移動プレート３２に付加する抵抗付加機構４１を備えている。 As shown in FIGS. 11 and 12, the cumulative plastic displacement measuring device 3B is provided on one of the pair of support plates 26a, 26b. The cumulative plastic displacement measuring device 3B includes a pair of guide rails 31a and 31b and a moving plate 32, like the cumulative plastic displacement measuring device 3A of the first embodiment. Then, the accumulated plastic displacement measuring instrument 3B is different from the cumulative plastic deformation position measuring device 3A of the first embodiment, one end side is positioned on one principal surface of the moving plate 32, the other end is supported on the other support plate 26b And an arm member 33B that moves in the shear direction of the shear deformation member 25 in accordance with the relative displacement between the one support plate 26a and the other support plate 26b. Then, when the shear deformation member 25 is deformed in the first direction and the pair of support plates 26a and 26b are relatively displaced, the moving plastic plate 32 moves with the movement of the arm member 33B, When the shear deformation member 25 is deformed in the second direction opposite to the first direction and the pair of support plates 26a and 26b are relatively displaced, the arm member 33B moves so as to move relative to the movement plate 32. A movement direction restriction mechanism 35B for restricting the movement direction of the plate 32 to the first direction is provided. The cumulative plastic displacement measuring device 3B includes a resistance adding mechanism 41 that adds a resistance force to the moving plate 32 to hinder the movement of the moving plate 32, similarly to the cumulative plastic displacement measuring device 3A of the first embodiment.

ここで、一対の支持プレート２６ａ，２６ｂの相対変位は、せん断変形部材２５の互いに反対方向を向く２つの方向のせん断変形によって生じる。したがって、この実施形態２では、互いに反対方向を向く２つの方向を左右方向と定義し、左側方向を第１方向と定義し、右側方向を第２方向と定義する。以下、この実施形態２では、説明を分かり易くするため、第１方向を左側方向Ｌｐと呼び、第２方向を右側方向Ｌｓと呼ぶ。   Here, the relative displacement of the pair of support plates 26a and 26b is caused by the shear deformation of the shear deformation member 25 in two directions facing each other. Therefore, in the second embodiment, two directions facing each other are defined as left and right directions, a left direction is defined as a first direction, and a right direction is defined as a second direction. Hereinafter, in the second embodiment, the first direction is referred to as a leftward direction Lp, and the second direction is referred to as a rightward direction Ls for easy understanding.

アーム部材３３Ｂは、一対の支持プレート２６ａ，２６ｂの離間方向に沿って延長し、一端側にフック３７が設けられ、他端側が支持プレート２６ｂに支持されている。アーム部材３３Ｂは、詳細に図示していないが、移動プレート３２に対して上下方向に移動自在になっている。
移動プレート３２は、一端側が支持プレート２６ａの長手方向の中央部側に位置し、他端側が支持プレート２６ａの端部側に位置するように支持プレート２６ａの軸方向に沿って延長している。アーム部材３３Ｂは、支持プレート２６ｂの軸直角に延長している。そして、アーム部材３３Ｂは、一端側が移動プレート３２と直交するようにして配置されている。アーム部材３３Ｂの他端側は、支持プレート２６ｂに固定されている。また、アーム部材３３Ｂは、他端側を支点にして一端側が移動プレート３２に対して上下方向に撓む可撓性を有している。 The arm member 33B extends along the direction in which the pair of support plates 26a and 26b are separated from each other. A hook 37 is provided at one end, and the other end is supported by the support plate 26b. Although not shown in detail, the arm member 33B is vertically movable with respect to the movable plate 32.
The moving plate 32 extends along the axial direction of the support plate 26a such that one end is located at the center in the longitudinal direction of the support plate 26a and the other end is located at the end of the support plate 26a. The arm member 33B extends at a right angle to the axis of the support plate 26b. The arm member 33B is disposed such that one end side is orthogonal to the moving plate 32. The other end of the arm member 33B is fixed to the support plate 26b. Further, the arm member 33B has flexibility such that one end side is vertically bent with respect to the movable plate 32 with the other end side as a fulcrum.

変位測定器６Ｂは、実施形態１の変位測定器６Ａと同様に、せん断変形部材２５がせん断方向の変形により変位した変位量を測定するものである。そして、変位測定器６Ｂは、一対の支持プレート２６ａと支持プレート２６ｂとの間で生じる相対変位を利用してせん断変形部材２５の変位量を測定するものである。この変位測定器６Ｂは、累積塑性変位測定器３Ａの隣に併設して配置されている。   The displacement measuring device 6B measures the amount of displacement of the shear deformation member 25 caused by deformation in the shear direction, similarly to the displacement measuring device 6A of the first embodiment. The displacement measuring device 6B measures the amount of displacement of the shear deformation member 25 using the relative displacement generated between the pair of support plates 26a and 26b. The displacement measuring device 6B is disposed adjacent to and adjacent to the cumulative plastic displacement measuring device 3A.

変位測定器６Ｂは、実施形態１の変位測定器６Ａと同様に、第１伸縮部材６１及び第２伸縮部材６２と、変位板６３と、図示していないが変位量表示部６５を備えている。そして、変位測定器６Ｂは、実施形態１の変位測定器６Ａとは異なり、変位板６３が変位板支持アーム６６を介して支持プレート２６ｂに支持された構成になっている。変位板支持アーム６６は、一対の支持プレート２６ａと支持プレート２６ｂとの離間方向に沿って延長し、一端側の先端に変位板６３が設けられ、他端側が支持プレート２６ｂに支持されている。変位板６３は、変位板支持アーム６６の一端側の先端から支持プレート２６ａに向かって延伸している。   Like the displacement measuring device 6A of the first embodiment, the displacement measuring device 6B includes a first elastic member 61 and a second elastic member 62, a displacement plate 63, and a displacement amount display section 65 (not shown). . The displacement measuring device 6B is different from the displacement measuring device 6A of the first embodiment in that the displacement plate 63 is supported by the support plate 26b via the displacement plate support arm 66. The displacement plate support arm 66 extends along the direction in which the pair of support plates 26a and 26b are separated from each other. The displacement plate 63 is provided at one end on one end, and the other end is supported by the support plate 26b. The displacement plate 63 extends from a tip on one end side of the displacement plate support arm 66 toward the support plate 26a.

次に、図１３及び図１４を参照して累積塑性変位測定器３Ｂの動作を説明しながら実施形態２の効果を説明する。
せん断変形部材２５が左側方向Ｌｐに塑性変形（せん断変形）して支持プレート２６ｂが支持プレート２６ａに対してせん断変形部材２５の左側方向Ｌｐに相対変位した場合（図１２参照）、アーム部材３３Ｂの移動と共にフック３７が、図１３（ａ）に示す位置から図１３（ｂ）に示すように、支持プレート２６ａに対して左側方向Ｌｐ（図１３において左側）に相対移動する。そして、図１３（ｂ）に示すように、フック３７が第１突起３６の側面部３６ａに引っ掛かって移動プレート３２をせん断変形部材２５の左側方向Ｌｐに押し込む。このとき、第２突起４４が摩擦バネ４３を下方に押し下げることで摩擦バネ４３が下方に変形し、図１３（ｃ）に示すように、第２突起４４が摩擦バネ４３の頂部（中央部）を乗り越えることにより移動プレート３２がせん断変形部材２５の左側方向Ｌｐに移動する。すなわち、せん断変形部材２５が左側方向Ｌｐに塑性変形して２つの支持プレート２６ａ，２６ｂが相対変位したときに移動プレート３２がアーム部材３３Ｂの移動に伴ってせん断変形部材２５の左側方向Ｌｐに移動する。 Next, the effects of the second embodiment will be described while describing the operation of the cumulative plastic displacement measuring device 3B with reference to FIGS.
When the shear deformation member 25 is plastically deformed (shear deformed) in the left direction Lp and the support plate 26b is displaced relative to the support plate 26a in the left direction Lp of the shear deformation member 25 (see FIG. 12), the arm member 33B As shown in FIG. 13B, the hook 37 moves relative to the support plate 26a in the leftward direction Lp (left side in FIG. 13) from the position shown in FIG. 13A. Then, as shown in FIG. 13B, the hook 37 is hooked on the side surface portion 36 a of the first protrusion 36 and pushes the moving plate 32 in the leftward direction Lp of the shear deformation member 25. At this time, when the second protrusion 44 pushes down the friction spring 43, the friction spring 43 is deformed downward, and as shown in FIG. 13C, the second protrusion 44 is moved to the top (center) of the friction spring 43. , The moving plate 32 moves in the left direction Lp of the shear deformation member 25. That is, when the shear deformation member 25 is plastically deformed in the left direction Lp and the two support plates 26a and 26b are relatively displaced, the moving plate 32 moves in the left direction Lp of the shear deformation member 25 with the movement of the arm member 33B. I do.

ここで、上記の（１）式となるように第２突起４４の第２斜面部４４ａ，４４ｂの傾斜を設定することにより、移動プレート３２は軸部材２１の圧縮方向に移動する。
一方、図１２とは逆に、せん断変形部材２５が右側方向Ｌｓに塑性変形（せん断変形）して支持プレート２６ｂが支持プレート２６ａに対してせん断変形部材２５の右側方向Ｌｓに相対変位した場合、アーム部材３３Ｂの移動と共にフック３７が、図１４（ａ）に示す位置から図１４（ｂ）に示すように、移動プレート３２に対して右側方向Ｌｓに相対移動する。このきと、フック３７がアーム部材３３Ｂの上下方向の変位により第１突起３６の第１斜面部３６ｂを押圧するが、第１突起３６の第１斜面部３６ｂがフック３７を上方に押上げてアーム部材３３Ｂが上方に移動するため、図１４（ｃ）に示すように、移動プレート３２はせん断変形部材２５の右側方向Ｌｓには移動せず、アーム部材３３Ｂ及びフック３７のみが移動する。すなわち、せん断変形部材２５が右側方向Ｌｓに変形して支持プレート２６ａと支持プレート２６ｂとが相対変位したときにアーム部材３３Ｂが移動プレート３２に対して相対移動するようにして移動プレート３２の移動方向をせん断変形部材２５の右側方向Ｌｓに限定する。 Here, the movable plate 32 moves in the compression direction of the shaft member 21 by setting the inclination of the second slope portions 44a and 44b of the second protrusion 44 so as to satisfy the above-described expression (1).
On the other hand, contrary to FIG. 12, when the shear deformation member 25 is plastically deformed (shear deformed) in the right direction Ls and the support plate 26b is displaced relative to the support plate 26a in the right direction Ls of the shear deformation member 25, With the movement of the arm member 33B, the hook 37 relatively moves from the position shown in FIG. 14A to the right side Ls with respect to the moving plate 32 as shown in FIG. 14B. At this time, the hook 37 presses the first slope 36b of the first projection 36 due to the vertical displacement of the arm member 33B, but the first slope 36b of the first projection 36 pushes the hook 37 upward. Since the arm member 33B moves upward, as shown in FIG. 14C, the moving plate 32 does not move in the right direction Ls of the shear deformation member 25 , and only the arm member 33B and the hook 37 move. That is, when the shear deformation member 25 is deformed in the right direction Ls and the support plate 26a and the support plate 26b are relatively displaced, the arm member 33B is relatively moved with respect to the movable plate 32 so that the moving direction of the movable plate 32 is changed. Is limited to the right direction Ls of the shear deformation member 25.

ここで、上記の（２）式となるように第１斜面部３６ｂの傾斜を設定することにより、アーム部材３３Ｂが移動プレート３２に対して上方に移動し、フック３７が第１突起３６を乗り越えて移動するため、移動プレート３２は移動せず、フック３７のみがせん断変形部材２５の右側方向Ｌｓに移動する。
以上のように、移動プレート３２は、せん断変形部材２５が左側方向Ｌｐに変形したときに移動し、せん断変形部材２５が右側方向Ｌｓに変形したときには移動を抑止されるため、地震時にせん断変形部材２５が左側方向Ｌｐの変形及び右側方向Ｌｓの変形を繰り返したときに、せん断変形部材２５の左側方向への変位量の累積分、移動プレート３２がせん断変形部材２５の左側方向Ｌｐに移動する。 Here, by setting the inclination of the first slope portion 36b so as to satisfy the above equation (2), the arm member 33B moves upward with respect to the moving plate 32, and the hook 37 gets over the first protrusion 36. The moving plate 32 does not move, and only the hook 37 moves in the right direction Ls of the shear deformation member 25.
As described above, the moving plate 32 moves when the shear deformation member 25 deforms in the left direction Lp, and is suppressed when the shear deformation member 25 deforms in the right direction Ls. When the deformation 25 repeats the deformation in the left direction Lp and the deformation in the right direction Ls, the moving plate 32 moves in the left direction Lp of the shear deformation member 25 by the cumulative amount of the displacement of the shear deformation member 25 in the left direction.

この移動プレート３２の移動量を測定することにより、せん断変形部材２５の左側方向Ｌｐの変位量の累積を計測することができる。また、この累積値をせん断変形部材２５の全長で除することにより、累積左側方向塑性ひずみ量を推定することができる。
また、地震時には、せん断変形部材２５がほぼ均等に左側方向の変形と左側方向の変形とを繰り返すため、この累積左側方向塑性歪み量を２倍にすることにより、せん断変形部材２５の累積塑性歪み量を推定することができる。 By measuring the amount of movement of the moving plate 32, the accumulation of the amount of displacement of the shear deformation member 25 in the left direction Lp can be measured. By dividing the cumulative value by the total length of the shear deformation member 25, the cumulative leftward plastic strain can be estimated.
In addition, during an earthquake, since the shear deformation member 25 repeats the deformation in the left direction and the deformation in the left direction almost equally, by doubling the amount of the cumulative left direction plastic strain, the cumulative plastic strain of the shear deformation member 25 is increased. The amount can be estimated.

累積塑性歪み量は、せん断変形部材２５の低サイクル疲労限界を算定するための指標であることから、設置されている制振ダンパー１Ｂの疲労寿命を累積塑性変位測定器３Ａにより外観から測定することができる。すなわち、制振ダンパー１Ｂ及び累積塑性変位測定器３Ｂは、制振ダンパー１Ｂの累積塑性変形量を外観より測定することができる。
次に、図１５を参照して変位測定器６Ｂの動作を説明しながら実施形態２での効果を説明する。 Since the accumulated plastic strain is an index for calculating the low cycle fatigue limit of the shear deformation member 25, the fatigue life of the installed vibration damper 1B is measured from the external appearance by the accumulated plastic displacement measuring device 3A. Can be. That is, the damping damper 1B and the cumulative plastic displacement measuring device 3B can measure the cumulative amount of plastic deformation of the damping damper 1B from the appearance.
Next, the effects of the second embodiment will be described while explaining the operation of the displacement measuring device 6B with reference to FIG.

図１５（ａ）に示すように、第１伸縮部材６１及び第２伸縮部材６２は、地震前の初期設定では変位板６３の両側で伸張状態であり、各々の先端部６１ａ，６２ａが変位板６３に接している。このときの第１伸縮部材６１の長さをＭ１とし、第２伸縮部材６２の長さをＭ２とする。
そして、地震時にせん断変形部材２５が左側方向Ｌｐに変形して２つの支持プレート２６ａと支持プレート２６ｂとがせん断変形部材２５の左側方向Ｌｐに相対変位（図１２参照）すると、図１５（ｂ）に示すように、変位板支持アーム６６の移動と共に変位板６３が支持プレート２６ａに対し左側方向Ｌｐに相対移動する。このとき、変位板６３が第１伸縮部材６１の先端部６１ａを左側方向Ｌｐに押圧しながら移動し、第１伸縮部材６１の長さが減少する。 As shown in FIG. 15 (a), the first telescopic member 61 and the second telescopic member 62 are in an extended state on both sides of the displacement plate 63 in the initial setting before the earthquake, and the distal ends 61a and 62a are respectively displaced by the displacement plate. It touches 63. At this time, the length of the first elastic member 61 is M1, and the length of the second elastic member 62 is M2.
Then, when the shear deformation member 25 is deformed in the left direction Lp during the earthquake and the two support plates 26a and 26b are relatively displaced in the left direction Lp of the shear deformation member 25 (see FIG. 12), FIG. As shown in (1), the displacement plate 63 moves relative to the support plate 26a in the leftward direction Lp with the movement of the displacement plate support arm 66. At this time, the displacement plate 63 moves while pressing the distal end portion 61a of the first elastic member 61 in the leftward direction Lp, and the length of the first elastic member 61 decreases.

また、図１２とは逆にせん断変形部材２５が右側方向Ｌｓに変形して２の支持プレート２６ａと支持プレート２６ｂとがせん断変形部材２５の右側方向Ｌｓに相対変位すると、図１５（ｃ）に示すように、変位板支持アーム６６の移動と共に変位板６３が支持プレート２６ａに対して右側方向Ｌｓに相対移動する。このとき、変位板６３が第２伸縮部材６２の先端部６２ａを右側方向Ｌｓに押圧しながら移動し、第２伸縮部材６２の長さが減少する。   Also, contrary to FIG. 12, when the shear deformation member 25 is deformed in the right direction Ls and the second support plate 26a and the support plate 26b are relatively displaced in the right direction Ls of the shear deformation member 25, FIG. As shown, the displacement plate 63 moves relative to the support plate 26a in the right direction Ls with the movement of the displacement plate support arm 66. At this time, the displacement plate 63 moves while pressing the distal end portion 62a of the second elastic member 62 in the right direction Ls, and the length of the second elastic member 62 decreases.

地震後に第１伸縮部材６１及び第２伸縮部材６２のそれぞれの長さを測定すると、左側方向Ｌｐ及び右側方向Ｌｓ（左右方向）での変位板６３の最大移動量を算定できる。そして、第１伸縮部材６１の長さの変化量がせん断変形部材２５の最大縮小量Ｐ１となり、第２伸縮部材６２の長さの変化量が軸部材２１の最大伸張量Ｐ２となる。そして、第１伸縮部材６１及び第２伸縮部材６２のうち、長さの変化量の大きい方が、せん断変形部材２５すなわち制振ダンパー１Ｂの最大変位量となる。   By measuring the length of each of the first elastic member 61 and the second elastic member 62 after the earthquake, it is possible to calculate the maximum movement amount of the displacement plate 63 in the left direction Lp and the right direction Ls (left and right direction). The amount of change in the length of the first elastic member 61 is the maximum contraction amount P1 of the shear deformation member 25, and the amount of change in the length of the second elastic member 62 is the maximum amount of extension P2 of the shaft member 21. Then, of the first elastic member 61 and the second elastic member 62, the one with the larger change amount of the length becomes the maximum displacement amount of the shear deformation member 25, that is, the vibration damper 1B.

以上のように、この実施形態２においても、制振ダンパー１Ｂの累積塑性変位量を外観より測定することができる。また、この実施形態２においても、制振ダンパー１Ｂの最大変位量を外観より測定することができる。
なお、この実施形態２の累積塑性変位測定器３Ｂでは、移動プレート３２の移動方向を左側方向Ｌｐに制限しているので、右側方向Ｌｓの累積塑性変位量を直接検出することができない。しかしながら、移動プレート３２の移動方向を右側方向Ｌｓに制限することで、右側方向Ｌｓの累積塑性変位量を実施形態１と同様に検出することができる。移動プレート３２の移動方向を右側方向Ｌｓに制限するには、第１斜面部３６ｂ及び移動斜面部３７ｂの各々の傾斜方向を実施形態２とは逆向きにする。 As described above, also in the second embodiment, the amount of cumulative plastic displacement of the vibration damper 1B can be measured from the appearance. Also in the second embodiment, the maximum displacement amount of the vibration damper 1B can be measured from the appearance.
In the cumulative plastic displacement measuring device 3B of the second embodiment, since the moving direction of the movable plate 32 is limited to the left direction Lp, the cumulative plastic displacement amount in the right direction Ls cannot be directly detected. However, by limiting the moving direction of the moving plate 32 to the right direction Ls, the amount of cumulative plastic displacement in the right direction Ls can be detected as in the first embodiment. In order to restrict the moving direction of the moving plate 32 to the right direction Ls, the respective inclination directions of the first slope portion 36b and the moving slope portion 37b are made opposite to those in the second embodiment.

以上、本発明を上記一実施形態に基づき具体的に説明したが、本発明は上記一実施形態に限定されるものではなく、その要旨を逸脱しない範囲において種々変更可能であることは勿論である。   As described above, the present invention has been specifically described based on the above-described one embodiment. However, the present invention is not limited to the above-described one embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. .

１Ａ，１Ｂ…制振ダンパー
２Ａ，２Ｂ…ダンパー本体
２１…軸部材（変形部）
２２…補剛部材（相対変位部）
２３ａ，２３ｂ…連結部材（相対変位部）
２５…せん断変形部材（変形部）
３Ａ，３Ｂ…累積塑性変位測定器
３１ａ，３１ｂ…ガイドレール
３２…移動プレート
３３Ａ，３３Ｂ…アーム部材
３５…移動方向制限機構
３６…第１突起
３６ａ…側面部
３６ｂ…第１斜面部
３７…フック
３７ａ…押圧側面部
３７ｂ…移動斜面部
４１…抵抗付加機構
４２ａ，４２ｂ…ベースプレート
４３…摩擦バネ
４４…第２突起
４４ａ，４４ｂ…第２斜面部
４６…アーム支持部材
４７…レール支持部材
５…累積塑性変位量表示部
５１ａ，５１ｂ，５１ｃ…表示領域
５２…指針
６Ａ，６Ｂ…変位測定器
６１…第１伸縮部材，６１ａ…先端部
６２…第２伸縮部材，６２ａ…先端部
６３…変位板
６５…変位量表示部 1A, 1B: Damping damper 2A, 2B: Damper body 21: Shaft member (deformed part)
22 ... Stiffening member (relative displacement part)
23a, 23b ... connecting member (relative displacement unit)
25 ... Shear deformation member (deformation part)
3A, 3B: Cumulative plastic displacement measuring device 31a, 31b: Guide rail 32: Moving plate
3 3A, 33B ... arm member 35 ... moving direction restricting mechanism 36 ... first projections 36a ... side surface portion 36b ... first inclined surface portion 37 ... hook 37a ... pressing side portions 37b ... moving the inclined surface portion 41 ... resistance applying mechanism 42a, 42b ... Base plate 43 ... Friction spring 44 ... Second projection 44a, 44b ... Second slope section 46 ... Arm support member 47 ... Rail support member 5 ... Cumulative plastic displacement amount display section 51a, 51b, 51c ... Display area 52 ... Pointer 6A, 6B ... Displacement measuring instrument 61... First telescopic member, 61 a... Tip 62.

Claims (12)

ダンパー本体と、前記ダンパー本体に設けられた累積塑性変位測定器とを備え、
前記ダンパー本体は、振動エネルギーを変形により吸収する変形部と、前記変形部の変形により相対変位する２つの相対変位部とを備え、
前記累積塑性変位測定器は、
前記２つの相対変位部の一方に設けられた一対のガイドレールと、
前記一対のガイドレールに移動自在に支持された移動プレートと、
一端側が前記移動プレートの一主面上に位置し、他端側が前記２つの相対変位部の他方に支持され、かつ前記２つの相対変位部の相対変位に伴って移動するアーム部材と、
前記変形部が第１方向に変形して前記２つの相対変位部が相対変位したときに前記移動プレートが前記アーム部材の移動に伴って移動し、前記変形部が前記第１方向とは反対方向の第２方向に変形して前記２つの相対変位部が相対変位したときに前記アーム部材が前記移動プレートに対して相対移動するようにして前記移動プレートの移動方向を前記第１方向に制限する移動方向制限機構と、
前記移動プレートの移動を妨げる抵抗力を前記移動プレートに付加する抵抗付加機構と、
を備えていることを特徴とする制振ダンパー。 A damper body, comprising a cumulative plastic displacement measuring device provided in the damper body,
The damper body includes a deforming portion that absorbs vibration energy by deformation, and two relative displacement portions that relatively displace by deformation of the deforming portion,
The cumulative plastic displacement measuring device,
A pair of guide rails provided on one of the two relative displacement portions,
A moving plate movably supported by the pair of guide rails,
An arm member having one end located on one main surface of the moving plate, the other end supported by the other of the two relative displacement parts, and moving with the relative displacement of the two relative displacement parts;
When the deformable portion is deformed in a first direction and the two relative displacement portions are relatively displaced, the moving plate moves with the movement of the arm member, and the deformable portion moves in a direction opposite to the first direction. The arm member is relatively moved with respect to the movable plate when the two relative displacement portions are relatively displaced by being deformed in the second direction, so that the moving direction of the movable plate is limited to the first direction. A movement direction restriction mechanism,
A resistance adding mechanism that adds a resistance force to the moving plate that hinders movement of the moving plate,
A vibration damper characterized by comprising: 前記累積塑性変位測定器は、前記移動プレートの移動を妨げる抵抗力を前記移動プレートに付加する抵抗付加機構を更に備えていることを特徴とする請求項１に記載の制振ダンパー。   2. The vibration damper according to claim 1, wherein the cumulative plastic displacement measuring device further includes a resistance adding mechanism that applies a resistance to the moving plate that hinders movement of the moving plate. 3. 前記移動方向制限機構は、
前記移動プレートの一主面に前記移動プレートの長手方向に沿って配列された複数の第１突起と、
前記アーム部材の一端側に設けられ、前記変形部が前記第１方向に変形して前記２つの相対変位部が相対変位したときに前記第１突起に引っ掛かり、前記変形部が前記第２方向に変形して前記２つの相対変位部が相対変位したときに前記第１突起を乗り越えて移動するフックと、
を備えていることを特徴とする請求項１に記載の制振ダンパー。 The movement direction restriction mechanism,
A plurality of first protrusions arranged on one main surface of the moving plate along a longitudinal direction of the moving plate;
Provided on one end side of the arm member, wherein the two relative displacement portion deformable portion is deformed in the first direction is caught on the first projection when the relative displacement, the flexible portion is in the second direction A hook that moves over the first projection when the two relative displacement portions are deformed and relatively displaced;
The vibration damper according to claim 1, further comprising: 前記第１突起は、前記変形部が前記第１方向に変形して前記２つの相対変位部が相対変位したときに前記フックが引っ掛かる側面部と、前記変形部が前記第２方向に変形して前記２つの相対変位部が相対変位したときに前記フックを前記移動プレートに対して上方に押し上げる斜面部とを有し、
前記フックは、前記側面部と対向し、かつ前記側面部を押圧する押圧側面部と、前記斜面部と同一方向に傾斜し、前記斜面部を滑りながら移動する移動斜面部とを有することを特徴とする請求項３に記載の制振ダンパー。 The first protrusion has a side surface on which the hook is hooked when the deformable portion is deformed in the first direction and the two relative displacement portions are relatively displaced, and the deformable portion is deformed in the second direction. A slope portion that pushes the hook upward with respect to the moving plate when the two relative displacement portions are relatively displaced,
The hook has a pressing side surface portion facing the side surface portion and pressing the side surface portion, and a moving slope portion inclined in the same direction as the slope portion and moving while sliding on the slope portion. The vibration damper according to claim 3, wherein 抵抗付加機構は、
前記２つの相対変位部の一方と前記移動プレートとの間に、前記移動プレートの長手方向に互いに離間して配置された一対のベースプレートと、
前記一対のベースプレートの間に配置され、両端が前記一対のベースプレートに支持されて中央部が前記一対のベースプレートよりも突出した摩擦バネと、
前記移動プレートの一主面と対向する裏面に前記移動プレートの長手方向に沿って配列され、前記変形部が前記第１方向に変形して前記２つの相対変位部が相対変位したときに前記摩擦バネを下方に押し下げながら前記摩擦バネの中央部を乗り越えて移動する複数の第２突起と、
を備えていることを特徴とする請求項２に記載の制振ダンパー。 The resistance addition mechanism is
A pair of base plates disposed apart from each other in the longitudinal direction of the moving plate between one of the two relative displacement portions and the moving plate,
A friction spring disposed between the pair of base plates, both ends of which are supported by the pair of base plates, and a central portion protrudes from the pair of base plates,
The friction member is arranged on a back surface facing the one main surface of the moving plate along a longitudinal direction of the moving plate, and the friction portion is deformed in the first direction and the two relative displacement portions are relatively displaced. A plurality of second protrusions that move over the center of the friction spring while pushing down the spring;
The vibration damper according to claim 2, comprising: 前記累積塑性変位測定器は、前記２つの相対変位部の一方に設けられ、かつ前記移動プレートの移動量に対応して複数の領域に区分された累積塑性変位量表示部を更に備えていることを特徴とする請求項１乃至請求項５の何れか一項に記載の制振ダンパー。   The cumulative plastic displacement measuring device may further include a cumulative plastic displacement amount display unit provided in one of the two relative displacement units and divided into a plurality of regions corresponding to the moving amount of the moving plate. The vibration damper according to any one of claims 1 to 5, characterized in that: 前記変形部が変形して前記２つの相対変位部が相対変位した変位量を測定する変位測定器を更に備え、
前記変位測定器は、
各々の長さが伸縮自在に変化し、各々の先端部が互いに向かい合うように配置され、かつ各々の先端部が前記２つの相対変位部の相対変位方向に移動するように前記２つの相対変位部の一方に支持された第１伸縮部材及び第２伸縮部材と、
前記２つの相対変位部の他方に支持され、かつ前記第１伸縮部材及び前記第２伸縮部材の各々の先端部を横切るように配置された変位板と、
を備えていることを特徴とする請求項１乃至請求項６の何れか一項に記載の制振ダンパー。 The apparatus further includes a displacement measuring device that measures a displacement amount in which the deformation unit is deformed and the two relative displacement units are relatively displaced,
The displacement measuring device,
The two relative displacement parts are arranged such that their lengths can be extended and contracted, each tip part is arranged to face each other, and each tip part moves in the relative displacement direction of the two relative displacement parts. A first telescopic member and a second telescopic member supported by one of the
The two are supported on the other of the relative displacement of parts, and the first elastic member and the second elastic member each displacement plate disposed across the distal end of the,
The vibration damper according to any one of claims 1 to 6, further comprising: 前記変位板は、前記アーム部材に連結されていることを特徴とする請求項７に記載の制振ダンパー。   The vibration damper according to claim 7, wherein the displacement plate is connected to the arm member. 前記変位板は、前記２つの相対変位部の他方に支持された変位板支持アームに連結されていることを特徴とする請求項７に記載の制振ダンパー。   The vibration damper according to claim 7, wherein the displacement plate is connected to a displacement plate support arm supported by the other of the two relative displacement portions. 前記変形部は、軸方向に作用する圧縮及び引張りの軸荷重を弾性変形及び塑性変形により吸収する軸部材で構成され、
前記２つの相対変位部の一方は、前記軸部材を内挿する補剛部材で構成され、
前記２つの相対変位部の他方は、前記軸部材の端部に設けられた連結部材で構成されていることを特徴とする請求項１乃至請求項９の何れか一項に記載の制振ダンパー。 The deformation portion is configured by a shaft member that absorbs axial and compressive axial loads acting in the axial direction by elastic deformation and plastic deformation,
One of the two relative displacement portions is constituted by a stiffening member that interpolates the shaft member,
The damper according to any one of claims 1 to 9, wherein the other of the two relative displacement portions is configured by a connecting member provided at an end of the shaft member. . 前記変形部は、せん断方向の荷重を弾性変形及び塑性変形により吸収するせん断変形部材で構成され、
前記２つの相対変位部は、前記せん断方向と交差する方向において、前記せん断変形部材の両端に設けられた一対の支持プレートで構成されていることを特徴とする請求項１乃至請求項９の何れか一項に記載の制振ダンパー。 The deformation unit is configured by a shear deformation member that absorbs a load in a shear direction by elastic deformation and plastic deformation,
The two relative displacement portions are configured by a pair of support plates provided at both ends of the shear deformation member in a direction intersecting with the shear direction. The vibration damper according to any one of the preceding claims. 振動エネルギーを変形により吸収する変形部、及び前記変形部の変形により相対変位する２つの相対変位部を備えた制振ダンパーに設けられる累積塑性変位測定器であって、
前記２つの相対変位部の一方に設けられた一対のガイドレールと、
前記一対のガイドレールに移動自在に支持された移動プレートと、
一端側が前記移動プレートの一主面上に位置し、他端側が前記２つの相対変位部の他方に支持され、かつ前記２つの相対変位部の相対変位に伴って移動するアーム部材と、
前記変形部が第１方向に変形して前記２つの相対変位部が相対変位したときに前記移動プレートが前記アーム部材の移動に伴って移動し、前記変形部が前記第１方向とは反対方向の第２方向に変形して前記２つの相対変位部が相対変位したときに前記アーム部材が前記移動プレートに対して相対移動するようにして前記移動プレートの移動方向を前記第１方向に制限する移動方向制限機構と、
を備えていることを特徴とする累積塑性変位測定器。 A deformation section that absorbs vibration energy by deformation, and a cumulative plastic displacement measuring device provided in a vibration damper provided with two relative displacement sections that are relatively displaced by deformation of the deformation section,
A pair of guide rails provided on one of the two relative displacement portions,
A moving plate movably supported by the pair of guide rails,
An arm member having one end located on one main surface of the moving plate, the other end supported by the other of the two relative displacement parts, and moving with the relative displacement of the two relative displacement parts;
When the deformable portion is deformed in a first direction and the two relative displacement portions are relatively displaced, the moving plate moves with the movement of the arm member, and the deformable portion moves in a direction opposite to the first direction. The arm member is relatively moved with respect to the movable plate when the two relative displacement portions are relatively displaced by being deformed in the second direction, so that the moving direction of the movable plate is limited to the first direction. A movement direction restriction mechanism,
A cumulative plastic displacement measuring device comprising:
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