JP6877720B2 - Vibration damping device for structures - Google Patents

Vibration damping device for structures Download PDF

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JP6877720B2
JP6877720B2 JP2019171312A JP2019171312A JP6877720B2 JP 6877720 B2 JP6877720 B2 JP 6877720B2 JP 2019171312 A JP2019171312 A JP 2019171312A JP 2019171312 A JP2019171312 A JP 2019171312A JP 6877720 B2 JP6877720 B2 JP 6877720B2
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leaf spring
vibration
base plate
mass
brackets
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JP2020012560A (en
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浩 倉林
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Daiwa House Industry Co Ltd
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本発明は、構造物用制振装置に関し、詳しくは、板バネを使用し2軸制振可能な倒立振り子形の簡略構造で、例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置に関するものである。 The present invention relates to a vibration damping device for a structure. Specifically, the present invention is a simplified structure of an inverted pendulum type capable of two-axis vibration damping using a leaf spring, and is suitable for a structure such as a detached house. It is related to a vibration damping device.

従来、戸建住宅等の中低層構造物に対して設置される制振装置は、制振装置マスとしては鉄製、コンクリート製のものが多く、また、制振装置マスの荷重支持手段としては、積層ゴム、摩擦係数の小さいガイドレールタイプ、振り子タイプ等が多用されている。 Conventionally, most of the vibration damping devices installed on medium- and low-rise structures such as detached houses are made of iron or concrete as the vibration damping device mass, and as a load supporting means of the vibration damping device mass, Laminated rubber, guide rail type with low coefficient of friction, pendulum type, etc. are often used.

更に、従来における減衰装置として粘性系の積層ゴム等が多く採用されている。 Further, a viscous laminated rubber or the like is often used as a conventional damping device.

このような制振装置として一番重要な点は、振動の入力レベルの関係から、摩擦が小さいことである。 The most important point of such a vibration damping device is that the friction is small because of the vibration input level.

また、振動数の調整が容易なこと、メンテナンスに手間がかからないこと、更にコンパクトで安価なこと等も重要である。 It is also important that the frequency can be easily adjusted, maintenance is not troublesome, and it is compact and inexpensive.

特許文献1には、分割された平面視長方形状のマス体が、長辺部間にスペースをおくように並列状態に配置され、これら分割マス体が、それらの上面側に横架状態となるように分割マス体の長手方向に間隔をおいて設置された上方突出状態の取付け部によって一体化された第1制振用マスと、第2制振用マスと、復元機構としての第1板バネと、復元機構としての第2板バネとが備えられ、前記第1制振用マスの各分割マス体の長手方向の両端面部のそれぞれに、板面を分割マス体の長手方向と直交する方向に向けた前記第1板バネの下端部が固着状態に取り付けられると共に、各第1板バネの上端部が制振対象物の側に固着状態に取り付けられることで、第1制振用マスは、第1板バネに吊られた状態にされると共に、該吊り状態において、第1バネを撓み振動させながら分割マス体の長手方向に振動動作を行うことができるようになされており、前記第2制振用マスの両端面部のそれぞれに、板面の向きを前記第1板バネの板面の向きと同じにした前記第2板バネの下端部が固着状態に取り付けられると共に、各第2板バネの上端部が、第1制振用マスの前記各取付け部に固着状態に取り付けられることで、第2制振用マスは、第2板バネに吊られて、第1制振用マスの分割マス体間に、高さ寸法範囲を第1制振用マスの分割マス体の高さ寸法範囲と上下方向に重ならせるように配置されると共に、該配置状態において、第2バネを撓み振動させながら第1制振用マスの分割マス体の長手方向に振動動作を行うことができるように構成した多重直列型チューンドマスダンパーが開示されている。 In Patent Document 1, the divided rectangular mass bodies in a plan view are arranged in a parallel state so as to leave a space between the long sides, and these divided mass bodies are in a horizontal state on the upper surface side thereof. The first vibration damping mass, the second vibration damping mass, and the first plate as a restoration mechanism are integrated by the mounting portions in the upward protruding state, which are installed at intervals in the longitudinal direction of the divided mass body. A spring and a second leaf spring as a restoring mechanism are provided, and the plate surface is orthogonal to the longitudinal direction of the split mass body at each of both end faces in the longitudinal direction of each split mass body of the first vibration damping mass. The lower end of the first leaf spring facing in the direction is attached in a fixed state, and the upper end of each first leaf spring is attached to the side of the vibration damping object in a fixed state, so that the first vibration damping mass is attached. Is suspended from the first leaf spring, and in the suspended state, the first spring can be flexed and vibrated while vibrating in the longitudinal direction of the split mass body. The lower end of the second leaf spring having the direction of the plate surface in the same direction as the plate surface of the first leaf spring is attached to each of both end surface portions of the second vibration damping mass in a fixed state, and each second leaf spring. By attaching the upper end portion of the two leaf springs to the respective mounting portions of the first vibration damping mass in a fixed state, the second vibration damping mass is suspended from the second leaf spring for the first vibration damping mass. The height dimension range is arranged so as to overlap the height dimension range of the divided mass body of the first vibration damping mass in the vertical direction between the divided mass bodies of the masses, and in the arranged state, the second spring A multi-series tuned mass damper configured to be able to perform a vibrating operation in the longitudinal direction of the split mass body of the first vibration damping mass while flexing and vibrating the spring is disclosed.

しかし、特許文献1の多重直列型チューンドマスダンパーの場合、複数の板バネを利用した構成ではあるものの、倒立振り子構造でないことは勿論、1軸方向のみの制振を行うものであり、複数の板バネを利用した1基構成の基に2軸方向(X方向、Y方向)の制振を実現するものではない。 However, in the case of the multiple series type tuned mass damper of Patent Document 1, although it is configured using a plurality of leaf springs, it is not an inverted pendulum structure, and of course, it controls vibration only in one axial direction, and a plurality of leaf springs are used. It does not realize vibration damping in the biaxial directions (X direction and Y direction) based on a single configuration using a leaf spring.

特許第4347737号公報Japanese Patent No. 4347737

本発明は、上記事情に鑑みてなされてものであり、板バネを使用し2軸制振可能な倒立振り子形に構成し、2軸方向の広い振動数範囲をカバーできると同時に、振動数の調整は種々の簡略な手段を採用でき、非常にコンパクトな構造で、かつ、メンテナンスが容易で製造コストも低廉な例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置を提供するものである。 The present invention has been made in view of the above circumstances, and is configured in an inverted pendulum shape capable of biaxial vibration damping using a leaf spring, and can cover a wide frequency range in the biaxial direction, and at the same time, has a frequency. Various simple means can be adopted for adjustment, and a vibration damping device for structures suitable for a structure such as a detached house, which has a very compact structure, is easy to maintain, and has a low manufacturing cost, is provided. To do.

本発明は、四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置されるとともに、その両端部を前記ベースプレートに非接触となる近傍位置まで垂下した両X方向板バネブラケットと、前記両X方向板バネブラケットの垂下した下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、前記ベースプレートの両X方向辺部側と前記両X方向板バネブラケットとの間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、を有することを最も主要な特徴とする。 The present invention is a vibration damping device for a structure having a quadrangular base plate and a quadrangular vibrating mass arranged above the base plate, and the vibrating mass has an inverted leaf spring pendulum structure. A vicinity in which both ends of the base plate are not in contact with the base plate while being arranged in the X direction above the positions near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction. Both X-direction leaf spring brackets hanging down to the position, a plurality of leaf spring lower fixing brackets arranged in the Y direction protruding in the X direction from the hanging lower ends of the both X-direction leaf spring brackets, and both the base plate. A plurality of first units for restoring Y-direction vibration, which are fixedly arranged at both ends between the X-direction side portion side and both X-direction leaf spring brackets and support both X-direction leaf spring brackets in a non-contact state on the base plate. A plurality of second parts for restoring vibration in the X direction, which are fixedly arranged at both ends between the leaf spring mechanism portion of the above, the plurality of leaf spring lower fixing metal fittings arranged in the Y direction, and the end faces of the vibration mass in the Y direction. The most main feature is to have a leaf spring mechanism portion of the above and a plurality of vibration damping dampers arranged between the base plate and the vibration mass.

請求項1記載の発明によれば、板バネを使用し2軸制振可能な倒立振り子形の構成の基に、2軸方向の広い振動数範囲をカバーできると同時に、非常にコンパクトな構造で、かつ、メンテナンスが容易で製造コストも低廉であり、例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置を実現し提供することができる。 According to the invention of claim 1, based on the structure of an inverted pendulum type capable of biaxial vibration damping using a leaf spring, it is possible to cover a wide frequency range in the biaxial direction, and at the same time, it has a very compact structure. Moreover, maintenance is easy and the manufacturing cost is low, and it is possible to realize and provide a suitable vibration damping device for a structure by applying it to a structure such as a detached house.

請求項2、3記載の発明によれば、板バネを使用し2軸制振可能な倒立振り子形の構成の基に、2軸方向の広い振動数範囲をカバーできると同時に、非常にコンパクトな構造で、かつ、メンテナンスが容易で製造コストも低廉であり、更に、X方向、Y方向の複数の予引張横コイルバネにより振動マスのX方向、Y方向の振動数を個別に、かつ、簡略に調整することも可能であり、例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置を実現し提供することができる。 According to the inventions of claims 2 and 3, it is possible to cover a wide frequency range in the biaxial direction and at the same time, it is very compact based on the structure of an inverted pendulum that can suppress biaxial vibration using a leaf spring. It has a structure, is easy to maintain, and has a low manufacturing cost. Furthermore, the frequencies of the vibration mass in the X and Y directions are individually and simply simplified by using multiple pre-tension lateral coil springs in the X and Y directions. It is also possible to adjust, and it is possible to realize and provide a suitable vibration damping device for a structure by applying it to a structure such as a detached house.

請求項4記載の発明によれば、請求項3記載の発明における前記各バネ端受け具は、予引張横コイルバネの一端を挿通し掛け止める孔付きボルトを備えることから、請求項3記載の発明と同様な効果を奏し、かつ、予引張横コイルバネの設置の便宜を図ることができる構造物用制振装置を実現し提供することができる。 According to the invention of claim 4, each of the spring end receivers in the invention of claim 3 includes a bolt with a hole for inserting and hooking one end of a pre-tension lateral coil spring, and thus the invention of claim 3. It is possible to realize and provide a vibration damping device for a structure, which has the same effect as that of the above and can facilitate the installation of a pre-tension lateral coil spring.

請求項5記載の発明によれば、請求項1乃至4のいずれか1項に記載の発明の効果を奏するとともに、ベースプレートは、ストッパー機構部を備えるとともに、このストッパー機構部の一部に前記振動マスの振動減衰用の高減衰ゴムを備えることから、振動マスの過振動を防止し、また、振動マスの振動減衰効果を高めることができる構造物用制振装置を実現し提供することができる。 According to the invention of claim 5, the effect of the invention of any one of claims 1 to 4 is exhibited, the base plate is provided with a stopper mechanism, and a part of the stopper mechanism is vibrated. Since a high damping rubber for damping the vibration of the mass is provided, it is possible to realize and provide a vibration damping device for a structure capable of preventing excessive vibration of the vibration mass and enhancing the vibration damping effect of the vibration mass. ..

請求項6、7記載の発明によれば、請求項2、3記載の発明と同様、板バネを使用し2軸制振可能な倒立振り子形の構成の基に、2軸方向の広い振動数範囲をカバーできると同時に、非常にコンパクトな構造で、かつ、メンテナンスが容易で製造コストも低廉であり、更に、予圧縮縦コイルバネにより振動マスのX方向、Y方向の振動数を個別に、かつ、簡略に調整することも可能であり、例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置を実現し提供することができる。 According to the inventions of claims 6 and 7, as in the inventions of claims 2 and 3, a wide frequency in the biaxial direction is based on an inverted pendulum type configuration capable of biaxial vibration damping using a leaf spring. At the same time as being able to cover the range, it has a very compact structure, is easy to maintain, and the manufacturing cost is low. Furthermore, the frequency of the vibration mass in the X and Y directions is individually set by the precompressed vertical coil spring. It is also possible to make simple adjustments, and it is possible to realize and provide a suitable vibration damping device for a structure by applying it to a structure such as a detached house.

請求項8記載の発明によれば、請求項6、7記載の発明と同様な効果を奏し、かつ、振動マスの過振動を防止することができる構造物用制振装置を実現し提供することができる。 According to the invention of claim 8, it is intended to realize and provide a vibration damping device for a structure which has the same effect as the invention of claims 6 and 7 and can prevent excessive vibration of a vibrating mass. Can be done.

図1は本発明の実施例に係る構造物用制振装置の概略平面図である。FIG. 1 is a schematic plan view of a vibration damping device for a structure according to an embodiment of the present invention. 図2は本実施例に係る構造物用制振装置の概略正面図である。FIG. 2 is a schematic front view of the vibration damping device for a structure according to the present embodiment. 図3は本実施例に係る構造物用制振装置の概略側面図である。FIG. 3 is a schematic side view of the vibration damping device for a structure according to this embodiment. 図4は本実施例に係る構造物用制振装置においてX方向加振時における振動マスのY方向の振動特性を示すグラフである。FIG. 4 is a graph showing the vibration characteristics of the vibration mass in the Y direction when the vibration damping device for a structure according to the present embodiment is vibrated in the X direction. 図5は本実施例に係る構造物用制振装置においてX方向加振時における振動マスのX方向の振動特性を示すグラフである。FIG. 5 is a graph showing the vibration characteristics of the vibration mass in the X direction when the vibration damping device for a structure according to the present embodiment is vibrated in the X direction. 図6は本実施例に係る構造物用制振装置においてY方向加振時における振動マスのY方向の振動特性を示すグラフである。FIG. 6 is a graph showing the vibration characteristics of the vibration mass in the Y direction at the time of vibration in the Y direction in the structural vibration damping device according to the present embodiment. 図7は本実施例に係る構造物用制振装置においてY方向加振時における振動マスのX方向の振動特性を示すグラフである。FIG. 7 is a graph showing the vibration characteristics of the vibration mass in the X direction at the time of vibration in the Y direction in the structural vibration damping device according to the present embodiment. 図8は本実施例に係る構造物用制振装置において床から振動マスへのY方向振動伝達の共振振動周波数設定例を示すグラフである。FIG. 8 is a graph showing a resonance vibration frequency setting example of Y-direction vibration transmission from the floor to the vibration mass in the structural vibration damping device according to the present embodiment. 図9は本実施例に係る構造物用制振装置において床から振動マスへのX方向振動伝達の共振振動周波数設定例を示すグラフである。FIG. 9 is a graph showing a resonance vibration frequency setting example of X-direction vibration transmission from the floor to the vibration mass in the structural vibration damping device according to the present embodiment. 図10は本発明の実施例の変形例に係る構造物用制振装置の概略平面図である。FIG. 10 is a schematic plan view of a vibration damping device for a structure according to a modified example of the embodiment of the present invention. 図11は変形例に係る構造物用制振装置の概略正面図である。FIG. 11 is a schematic front view of the structural vibration damping device according to the modified example. 図12は変形例に係る構造物用制振装置の概略側面図である。FIG. 12 is a schematic side view of the vibration damping device for a structure according to a modified example.

本発明は、板バネを使用し2軸制振可能な倒立振り子形に構成し、2軸方向の広い振動数範囲をカバーできると同時に、振動数の調整は種々の簡略な手段を採用でき、非常にコンパクトな構造で、かつ、メンテナンスが容易で製造コストも低廉な例えば戸建て住宅等の構造物に適用して好適な構造物用制振装置を実現し提供するという目的を、四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置されるとともに、その両端部を前記ベースプレートに非接触となる近傍位置まで垂下した両X方向板バネブラケットと、前記両X方向板バネブラケットの垂下した下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、前記ベースプレートの両X方向辺部側と前記両X方向板バネブラケットとの間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、 前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、前記振動マスの下方で、かつ、前記両X方向板バネブラケットの内側位置において前記振動マスに連結された状態で配置した略四角枠状の補助バネブラケットと、前記ベースプレートのX方向、Y方向の各辺近傍位置に立設した複数の固定バネ支持材と、前記補助バネブラケットのX方向、Y方向の各側片部との間に掛け渡した可動範囲の変位量分を予め引張って振動応答特性が線形範囲内となるようにしたX方向、Y方向の複数の予引張横コイルバネと、前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、を有する構成により実現した。 The present invention is configured in an inverted pendulum shape capable of biaxial vibration control using a leaf spring, can cover a wide frequency range in the biaxial direction, and at the same time, various simple means can be adopted for adjusting the frequency. A square base plate for the purpose of realizing and providing a suitable structural vibration damping device by applying it to a structure such as a detached house, which has a very compact structure, is easy to maintain, and has a low manufacturing cost. A structure damping device having a square-shaped vibrating mass arranged above the base plate and having the vibrating mass having an inverted leaf spring pendulum structure, and positions near both sides of the base plate in the X direction. Both X-direction plates are arranged in the X-direction above and along the lower positions of both sides of the vibration mass in the X-direction, and both ends thereof hang down to a position close to the base plate in non-contact. A spring bracket, a plurality of leaf spring lower fixing brackets arranged in the Y direction protruding in the X direction from the hanging lower ends of the leaf spring brackets in both X directions, and both side portions in the X direction and both of the base plates. A plurality of first leaf spring mechanism portions for restoring Y-direction vibration, which are arranged so as to be fixed at both ends between the X-direction leaf spring bracket and support both X-direction leaf spring brackets in a non-contact state on the base plate, and the above. A plurality of leaf spring lower fixing brackets arranged in the Y direction, a plurality of second leaf spring mechanism portions for restoring X-direction vibration, which are fixedly arranged at both ends between the Y-direction end faces of the vibration mass, and the above. A substantially square frame-shaped auxiliary spring bracket arranged below the vibrating mass and connected to the vibrating mass at the inner position of both X-direction leaf spring brackets, and the X-direction and Y-direction of the base plate, respectively. Vibration response characteristics by pulling in advance the amount of displacement of the movable range spanned between a plurality of fixed spring support members erected near the sides and each side piece in the X direction and Y direction of the auxiliary spring bracket. This was realized by a configuration having a plurality of pre-tension lateral coil springs in the X-direction and the Y-direction so as to be within the linear range, and a plurality of vibration damping dampers arranged between the base plate and the vibration mass.

以下、図面を参照して、本発明の実施例に係る構造物用制振装置について詳細に説明する。 Hereinafter, the structural vibration damping device according to the embodiment of the present invention will be described in detail with reference to the drawings.

本実施例に係る構造物用制振装置1は、図1乃至図3に示すように、平面視四角形状のベースプレート2と、前記ベースプレート2の上方に配置する上マス12、下マス13の重合構造で平面視四角形状からなる制振用の振動マス11と、を有し、前記振動マス11を倒立板バネ振り子構造に構成し、例えば戸建て住宅のような比較的軽重量の構造物の制振を行う用途に使用するものである。 As shown in FIGS. 1 to 3, the structural vibration damping device 1 according to the present embodiment is a combination of a rectangular base plate 2 in a plan view and an upper mass 12 and a lower mass 13 arranged above the base plate 2. It has a vibration damping mass 11 for vibration damping, which has a rectangular shape in a plan view, and the vibration mass 11 is configured as an inverted leaf spring pendulum structure to control a relatively light weight structure such as a detached house. It is used for shaking.

なお、本実施例においては、説明の便宜上前記構造物用制振装置1に関してX方向、Y方向を図1に示すように定義して以下の説明を行う。 In this embodiment, for convenience of explanation, the X direction and the Y direction of the structural vibration damping device 1 are defined as shown in FIG. 1, and the following description will be given.

本実施例に係る構造物用制振装置1は、前記ベースプレート2のX方向両辺部近傍位置の上方で、かつ、前記振動マス11における上マス12のX方向両辺部の下側位置に沿うようにX方向に配置される横架片22と、この横架片22の両端部から前記ベースプレート2に非接触となる近傍位置まで垂下した両垂下片23とを具備する両X方向板バネブラケット21と、前記両X方向板バネブラケット21の各垂下片23の下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具24と、前記ベースプレート2のX方向両辺部側と前記両X方向板バネブラケット21の横架片22との間に各々板バネ取り付け金具25を用いて両端固定で複数箇所配置される板バネ32を具備し、前記両X方向板バネブラケット21を前記ベースプレート2上で非接触状態に支持するY方向振動復元用の複数個(例えば4個又は2連4組合計8個)構成の第1の板バネ機構部31と、前記Y方向に配列される複数の板バネ下部固定金具24と、前記振動マス11における上マス12のY方向端面との間に板バネ取り付け金具25を用いて両端固定で複数箇所配置される前記板バネ32と同様な板バネ42を具備し、X方向振動復元用の複数個(例えば4個又は2連4組合計8個)構成の第2の板バネ機構部41と、前記振動マス11の下方で、かつ、前記両X方向板バネブラケット21の内側位置において前記振動マス11に連結され連動する状態で配置した略四角枠状の補助バネブラケット51と、前記ベースプレート2のX方向、Y方向の各辺近傍位置に立設したボルト62、ナット63を用いた複数(図1においては前記ベースプレート2のX方向に合計8個、Y方向に合計8個)の固定バネ支持材61と、前記固定バネ支持材61と、前記補助バネブラケット51のX方向、Y方向の各側片部52、53に各々水平配置に設けた孔54付きのボルト55、ナット56を具備する複数(図1においては前記X方向の両側片部52に4個ずつ合計8個、前記Y方向の両側片部53に4個ずつ合計8個)のバネ端受け具57とに、水平配置に掛け渡した可動範囲の変位量分を予め引張って振動応答特性が線形範囲内となるようにしたX方向、Y方向の振動微調整用の複数(図1においてはX方向に合計8個、Y方向に合計8個)の予引張横コイルバネ71と、前記ベースプレート2と前記振動マス11との間に配置した複数(例えば2個)の制振ダンパー81とを有している。 The structural vibration damping device 1 according to the present embodiment is above the position near both sides of the base plate 2 in the X direction and along the lower positions of both sides of the upper mass 12 of the vibration mass 11 in the X direction. Both X-direction leaf spring brackets 21 including a horizontal piece 22 arranged in the X direction and both hanging pieces 23 hanging from both ends of the horizontal piece 22 to a position close to non-contact with the base plate 2. A plurality of leaf spring lower fixing brackets 24 arranged in the Y direction protruding from the lower end of each hanging piece 23 of both X-direction leaf spring brackets 21 in the X direction, and both side portions of the base plate 2 in the X direction. A leaf spring 32 is provided between the two X-direction leaf spring brackets 21 and the horizontal piece 22 of both X-direction leaf spring brackets 21 by using leaf spring mounting brackets 25 to fix both ends at a plurality of locations. Is arranged in the Y direction with the first leaf spring mechanism portion 31 having a plurality of (for example, 4 or 2 stations, 4 sets, 8 in total) configuration for restoring vibration in the Y direction, which supports the base plate 2 in a non-contact state. Similar to the leaf spring 32, which is fixed at both ends by using the leaf spring mounting bracket 25 between the plurality of leaf spring lower fixing brackets 24 and the Y-direction end surface of the upper mass 12 of the vibration mass 11. A second leaf spring mechanism 41 having a leaf spring 42 and having a plurality of (for example, 4 or 2 stations, 4 sets in total, 8 pieces) for restoring vibration in the X direction, and below the vibration mass 11. , A substantially square frame-shaped auxiliary spring bracket 51 arranged in a state of being connected to and interlocked with the vibration mass 11 at the inner position of both X-direction leaf spring brackets 21, and near each side of the base plate 2 in the X-direction and the Y-direction. A plurality of fixed spring support members 61 using bolts 62 and nuts 63 erected at positions (a total of 8 in the X direction and a total of 8 in the Y direction of the base plate 2 in FIG. 1) and the fixed spring support members. A plurality of bolts 55 and nuts 56 having holes 54 provided horizontally in the X-direction and Y-direction side pieces 52 and 53 of the auxiliary spring bracket 51 (in FIG. 1 in the X-direction). 8 pieces in total, 4 pieces in each side piece 52 of the above, and 4 pieces in total 8 pieces in each side piece 53 in the Y direction) Pre-tension for fine adjustment of vibrations in the X and Y directions (a total of 8 in the X direction and a total of 8 in the Y direction in FIG. 1) so that the vibration response characteristics are within the linear range. Arranged between the horizontal coil spring 71, the base plate 2 and the vibration mass 11. It has a plurality of (for example, two) damping dampers 81.

前記バネ端受け具57のボルト55に設けた孔54は、前記予引張横コイルバネ71の一端側の掛け止めの便宜を図るためのものである。 The hole 54 provided in the bolt 55 of the spring end receiver 57 is for the convenience of hooking one end side of the pre-tension lateral coil spring 71.

本実施例の構造物用制振装置1は、更に、前記振動マス11の過振動を防止するストッパー機構部91と、このストッパー機構部の一部に設けた前記振動マス11の振動減衰用の高減衰ゴム92と、前記上マス12の上面に着脱可能に螺着した運搬、設置用で不必要時には取り外されるIボルト93と、を備えている。 The structural vibration damping device 1 of the present embodiment further has a stopper mechanism portion 91 for preventing excessive vibration of the vibration mass 11 and a vibration damping device for the vibration mass 11 provided in a part of the stopper mechanism portion. It is provided with a high damping rubber 92 and an I-bolt 93 that is detachably screwed to the upper surface of the upper mass 12 for transportation and installation and is removed when unnecessary.

前記予引張横コイルバネ71は、バネ端受け具57側の一端を、前記ボルト55の孔54に挿通し掛け止めるように円弧状に曲げ形成し、他端も前記固定バネ支持材61のボルト62の外周に掛け止めるように円弧状に曲げ形成している。 The pre-tension lateral coil spring 71 is formed by bending one end on the spring end receiver 57 side in an arc shape so as to be inserted into the hole 54 of the bolt 55 and hooked, and the other end is also the bolt 62 of the fixed spring support member 61. It is bent in an arc shape so as to hang on the outer circumference of the.

前記板バネ32、42の材質としては、バネ鋼は勿論、SK材やSUS材等も採用可能である。 As the materials of the leaf springs 32 and 42, not only spring steel but also SK material, SUS material and the like can be adopted.

前記ストッパー機構部91は、大地震時等においてその振動エネルギを吸収する作用を発揮する。 The stopper mechanism 91 exerts an action of absorbing the vibration energy in the event of a large earthquake or the like.

前記高減衰ゴム92は、積層ゴムタイプと違い劣化しないので、構造物用制振装置1の屋外設置も可能となる。 Since the high damping rubber 92 does not deteriorate unlike the laminated rubber type, the vibration damping device 1 for structures can be installed outdoors.

次に、本実施例の構造物用制振装置1の制振動作について、X方向加振時とY方向加振時とに場合を分け、かつ、図4乃至図9をも参照して説明する。 Next, the vibration damping operation of the structural vibration damping device 1 of the present embodiment will be described separately for the X-direction vibration and the Y-direction vibration, with reference to FIGS. 4 to 9. To do.

(X方向加振時)
本実施例の構造物用制振装置1において、この構造物用制振装置1が設置された床(構造物の一部)がX方向に振動し、この振動が振動マス11に伝達され振動マス11による制振が実行される場合について以下に説明する。
(At the time of vibration in the X direction)
In the structural vibration damping device 1 of the present embodiment, the floor (a part of the structure) on which the structural vibration damping device 1 is installed vibrates in the X direction, and this vibration is transmitted to the vibration mass 11 to vibrate. The case where the vibration damping by the mass 11 is executed will be described below.

前記ベースプレート2は床のX方向の振動に連動してX方向に振動する。 The base plate 2 vibrates in the X direction in conjunction with the vibration of the floor in the X direction.

前記ベースプレート2のX方向の振動は、前記各第1の板バネ機構部31の板バネ32、両X方向板バネブラケット21、前記各第2の板バネ機構部41の板バネ42を経て前記振動マス11に伝達される。 The vibration of the base plate 2 in the X direction passes through the leaf spring 32 of each of the first leaf spring mechanism portions 31, the leaf spring brackets 21 of both X directions, and the leaf spring 42 of each of the second leaf spring mechanism portions 41. It is transmitted to the vibration mass 11.

これにより、この振動マス11がX方向に振動し、同時に前記補助バネブラケット51もX方向に振動する。 As a result, the vibrating mass 11 vibrates in the X direction, and at the same time, the auxiliary spring bracket 51 also vibrates in the X direction.

このとき、前記各第1の板バネ機構部31の板バネ32の幅方向のバネ剛性が大きいことから、前記板バネ32はX方向にはほとんど弾性変形することはなく、また、前記板バネ32にはY方向の振動成分もほとんど伝達されないことから、前記ベースプレート2のX方向の振動は前記各第1の板バネ機構部31の板バネ32、両X方向板バネブラケット21を経て前記各第2の板バネ機構部41の板バネ42の下部に伝達される。 At this time, since the spring rigidity in the width direction of the leaf spring 32 of each of the first leaf spring mechanism portions 31 is large, the leaf spring 32 hardly elastically deforms in the X direction, and the leaf spring Since the vibration component in the Y direction is hardly transmitted to the 32, the vibration in the X direction of the base plate 2 passes through the leaf spring 32 of each of the first leaf spring mechanism portions 31 and the leaf spring brackets 21 in both X directions. It is transmitted to the lower part of the leaf spring 42 of the second leaf spring mechanism portion 41.

他方、前記各第2の板バネ機構部41の板バネ42の上部には重量が大きい前記振動マス11が連結されているので、前記各第2の板バネ機構部41の板バネ42はX方向の弾性変形と復元とを繰り返し、この結果、前記振動マス11は図5に示すようなX方向の振動を行うことになり、前記振動マス11によるX方向の制振が実行される。 On the other hand, since the heavy vibration mass 11 is connected to the upper part of the leaf spring 42 of each of the second leaf spring mechanism portions 41, the leaf spring 42 of each of the second leaf spring mechanism portions 41 is X. Elastic deformation and restoration in the direction are repeated, and as a result, the vibration mass 11 vibrates in the X direction as shown in FIG. 5, and vibration suppression in the X direction is executed by the vibration mass 11.

このような振動マス11によるX方向の制振が実行される時、前記振動マス11に対するY方向の振動成分はほとんどなく振動マス11のY方向振動は図4に示すように僅少となる。 When such vibration suppression in the X direction by the vibration mass 11 is executed, there is almost no vibration component in the Y direction with respect to the vibration mass 11, and the vibration in the Y direction of the vibration mass 11 is very small as shown in FIG.

また、前記振動マス11によるX方向の制振が実行される時、X方向に配列された各予引張横コイルバネ71は、線形範囲内の振動応答特性の基に伸縮変位する。 Further, when the vibration damping in the X direction is executed by the vibration mass 11, each pre-tension lateral coil spring 71 arranged in the X direction expands and contracts based on the vibration response characteristic within the linear range.

(Y方向加振時)
本実施例の構造物用制振装置1において、この構造物用制振装置1が設置された床(構造物の一部)がY方向に振動し、この振動が振動マス11に伝達され振動マス11による制振が実行される場合について以下に説明する。
(At the time of vibration in the Y direction)
In the structural vibration damping device 1 of the present embodiment, the floor (a part of the structure) on which the structural vibration damping device 1 is installed vibrates in the Y direction, and this vibration is transmitted to the vibration mass 11 to vibrate. The case where the vibration damping by the mass 11 is executed will be described below.

前記ベースプレート2は床のY方向の振動に連動してY方向に振動する。 The base plate 2 vibrates in the Y direction in conjunction with the vibration of the floor in the Y direction.

前記ベースプレート2のY方向の振動は、前記各第1の板バネ機構部31の板バネ32、両X方向板バネブラケット21、前記各第2の板バネ機構部41の板バネ42を経て前記振動マス11に伝達される。 The vibration of the base plate 2 in the Y direction passes through the leaf spring 32 of each of the first leaf spring mechanism portions 31, the leaf spring brackets 21 of both X directions, and the leaf spring 42 of each of the second leaf spring mechanism portions 41. It is transmitted to the vibration mass 11.

しかし、前記両X方向板バネブラケット21は剛体であり、前記各第2の板バネ機構部41の板バネ42の幅方向(Y方向)の剛性は大きいことから、前記板バネ42はY方向にはほとんど弾性変形することはなく、また、前記板バネ42にはX方向の振動成分もほとんど伝達されることはなく、前記両X方向板バネブラケット21、前記各第2の板バネ機構部41の板バネ42、前記振動マス11、更には前記補助バネブラケット51が一体的な状態となる。 However, since both the X-direction leaf spring brackets 21 are rigid bodies and the leaf springs 42 of the second leaf spring mechanism portions 41 have high rigidity in the width direction (Y direction), the leaf springs 42 are in the Y direction. There is almost no elastic deformation in the leaf spring 42, and the vibration component in the X direction is hardly transmitted to the leaf spring 42. The leaf spring 42 of 41, the vibration mass 11, and the auxiliary spring bracket 51 are integrated.

この結果、前記ベースプレート2のY方向の振動に伴って、前記各第1の板バネ機構部31の板バネ32がY方向に弾性変形、復元を繰り返しつつ前記振動マス11を含む各要素を支持し、かつ、Y方向に制振振動する状態となる。 As a result, as the base plate 2 vibrates in the Y direction, the leaf spring 32 of each of the first leaf spring mechanism portions 31 elastically deforms and restores in the Y direction while supporting each element including the vibration mass 11. However, it is in a state of vibration damping vibration in the Y direction.

すなわち、前記振動マス11は、Y方向加振時においては、前記各第1の板バネ機構部31の板バネ32のY方向への弾性変形、復元動作の基にY方向の制振動作を行うものである。 That is, when the vibration mass 11 is vibrated in the Y direction, the vibration damping operation in the Y direction is performed based on the elastic deformation and restoration operation of the leaf spring 32 of each of the first leaf spring mechanism portions 31 in the Y direction. It is something to do.

また、前記振動マス11によるY方向の制振が実行される時、Y方向に配列された各予引張横コイルバネ71は、線形範囲内の振動応答特性の基に伸縮変位する。 Further, when vibration damping in the Y direction is executed by the vibration mass 11, each pre-tension lateral coil spring 71 arranged in the Y direction expands and contracts based on the vibration response characteristic within the linear range.

図6はY方向加振時における前記振動マス11のY方向振動特性を、また、図7はY方向加振時における前記振動マス11の前記Y方向振動特性より僅少なX方向振動特性を示すものである。
ところで、通常の構造物は平面形状として長方形のものが多くあり、この場合、水平2軸(X方向,Y方向)の振動数は多くの場合異なる。
FIG. 6 shows the Y-direction vibration characteristic of the vibration mass 11 at the time of Y-direction vibration, and FIG. 7 shows the X-direction vibration characteristic of the vibration mass 11 at the time of Y-direction vibration, which is less than the Y-direction vibration characteristic. It is a thing.
By the way, many ordinary structures have a rectangular shape as a planar shape, and in this case, the frequencies of the two horizontal axes (X direction and Y direction) are different in many cases.

しかしながら、従来の制振装置(TMD)は振動数を決定するバネ定数は独立していなく、互いに干渉してしまい振動数の調整が複雑であると共に困難となる。 However, in the conventional vibration damping device (TMD), the spring constants that determine the frequency are not independent and interfere with each other, which makes the adjustment of the frequency complicated and difficult.

本実施例においては、振動数の微調整用として可動範囲の変位量分を予め引張して振動応答特性が線形範囲内となるように設定したX方向配列の予引張コイルバネ71、Y方向配列の予引張コイルバネ71をベースプレート2上に設けているので、水平2軸(X方向,Y方向)の振動数の調整を個別に実行することが可能であるという大きな利点がある。 In this embodiment, the pre-tension coil springs 71 in the X-direction arrangement and the Y-direction arrangement in which the vibration response characteristics are set to be within the linear range by pulling the displacement amount in the movable range in advance for fine adjustment of the frequency. Since the pre-tension coil spring 71 is provided on the base plate 2, there is a great advantage that the frequencies of the two horizontal axes (X direction and Y direction) can be individually adjusted.

図8は本実施例に係る構造物用制振装置1において床から振動マス11へのY方向振動伝達の共振振動周波数設定例を示し、また、図9は本実施例に係る構造物用制振装置1において床から振動マス11へのX方向振動伝達の共振振動周波数設定例を示すものである。 FIG. 8 shows an example of setting the resonance vibration frequency of the Y-direction vibration transmission from the floor to the vibration mass 11 in the structural vibration damping device 1 according to the present embodiment, and FIG. 9 shows the structural vibration damping device 1 according to the present embodiment. An example of setting the resonance vibration frequency of the X-direction vibration transmission from the floor to the vibration mass 11 in the vibration device 1 is shown.

すなわち、Y方向振動伝達時の共振振動周波数として約3.05Hz、X方向振動伝達時の共振振動周波数として1.3Hzと、独立して設定できることを意味している。 That is, it means that the resonance vibration frequency at the time of Y-direction vibration transmission can be set to about 3.05 Hz, and the resonance vibration frequency at the time of X-direction vibration transmission can be set to 1.3 Hz independently.

以上説明したように、本実施例の構造物用制振装置1によれば、主な装置要素は振動マス2、板バネ32、42、制振ダンパー81のみであり部品点数が少なく、非常にコンパクトな構造であり、メンテナンスも簡略容易で製造コストも低廉とすることができる。 As described above, according to the structural vibration damping device 1 of the present embodiment, the main device elements are only the vibration mass 2, the leaf springs 32 and 42, and the vibration damping damper 81, and the number of parts is small, which is very large. It has a compact structure, easy maintenance, and low manufacturing cost.

また、前記板バネ32、42を倒立振り子形として利用するものであり、そのため低振動数から高振動数までの制振に適用可能となるとともに、前記板バネ32、42は、摩擦が小さく、パネ材の内部摩擦のみで弾性変形するので、制振効果が大きいという利点がある。 Further, the leaf springs 32 and 42 are used as an inverted pendulum type, so that the leaf springs 32 and 42 can be applied to vibration damping from a low frequency to a high frequency, and the leaf springs 32 and 42 have low friction. Since it elastically deforms only by the internal friction of the panel material, it has the advantage of having a large vibration damping effect.

また、振動マス11の荷重支持は板バネ32、42を倒立振り子形に使用し、広い振動数範囲をカバーできると同時に、水平2軸方向(X方向、Y方向)の制振に関して、水平2軸方向について振動マス11を同じ振動数に設定することは勿論勿論可能であるが、水平2軸方向について別々に独立した振動数も設定することも可能である。 Further, for the load support of the vibration mass 11, the leaf springs 32 and 42 are used in an inverted pendulum shape to cover a wide frequency range, and at the same time, the vibration control in the horizontal biaxial directions (X direction and Y direction) is horizontal 2 Of course, it is possible to set the vibration mass 11 to the same frequency in the axial direction, but it is also possible to set independent frequencies separately in the horizontal two-axis directions.

すなわち、構造物の設計値と竣工時の違いのため生じる振動マス11の振動数の調整は、主に、その荷重を支持する板バネ32、42の厚さ、幅、長さで細かい振動数まで調整可能であり、必要によっては、前記X方向配列の予引張コイルバネ71、Y方向配列の予引張コイルバネ71の異なる振動応答特性を有するものへの取り替え等により簡略容易に実現することができる。 That is, the adjustment of the frequency of the vibrating mass 11 caused by the difference between the design value of the structure and the time of completion is mainly based on the thickness, width, and length of the leaf springs 32 and 42 that support the load. If necessary, the pre-tension coil spring 71 arranged in the X direction and the pre-tension coil spring 71 arranged in the Y direction can be easily and easily realized by replacing them with those having different vibration response characteristics.

これにより、振動マス11の水平2軸方向の制振動作を互いに干渉しなくて(連成しないで)稼働することが可能であり、従って、ヨーイングも生じない利点がある。 As a result, it is possible to operate the vibration mass 11 in the horizontal two-axis directions without interfering with each other (without coupling), and therefore, there is an advantage that yawing does not occur.

更には、前記板バネ32、42に関しては、通常の振り子形では両端都の支持方法が複雑になり、長さによる振動数の調整が回難となるが、本実施例では両端固定構造なので固定位置は簡単に移動できることからこの点からも振動数の調整は簡単である。 Further, regarding the leaf springs 32 and 42, in the normal pendulum type, the support method of both ends is complicated and it is difficult to adjust the frequency according to the length, but in this embodiment, since the structure is fixed at both ends, it is fixed. Since the position can be easily moved, it is easy to adjust the frequency from this point as well.

(変形例)
次に、図10乃至図12を参照して本実施例の変形例に係る構造物用制振装置1Aについて説明する。
(Modification example)
Next, the structural vibration damping device 1A according to the modified example of this embodiment will be described with reference to FIGS. 10 to 12.

なお、変形例に係る構造物用制振装置1Aにおいて、既述した実施例に係る構造物用制振装置1の場合と同一の要素については同一の符号を付し、その詳細説明は省略する。 In the structural vibration damping device 1A according to the modified example, the same elements as those in the case of the structural vibration damping device 1 according to the above-described embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. ..

図10乃至図12に示す変形例に係る構造物用制振装置1Aは、基本的構成は実施例に係る構造物用制振装置1の場合と略同様であるが、ベースプレート2の中央部に開口部2aを設けるとともに、前記振動マス11の下方で、かつ、前記両X方向板バネブラケット21の内側位置において前記両X方向板バネブラケット21に略四角枠状の補助バネブラケット100を水平配置で連結したこと、前記ベースプレート2と前記補助バネブラット100間にX方向配列で可動範囲の変位量分を予め圧縮して横剛性を利用した振動応答特性を発揮させる複数(例えば合計8個)の予圧縮縦コイルバネ111を配置したこと、前記補助バネブラケット100と前記振動マス11間にY方向配列で可動範囲の変位量分を予め圧縮して横剛性を利用した振動応答特性を発揮させる複数(例えば合計8個)の予圧縮縦コイルバネ121を配置したこと、が特徴であり、残余の構成は既述した実施例の場合と同様である。 The structure vibration damping device 1A according to the modified example shown in FIGS. 10 to 12 has a basic configuration substantially the same as that of the structure vibration damping device 1 according to the embodiment, but is located at the center of the base plate 2. An opening 2a is provided, and a substantially square frame-shaped auxiliary spring bracket 100 is horizontally arranged on both X-direction leaf spring brackets 21 below the vibration mass 11 and at a position inside the both X-direction leaf spring brackets 21. The base plate 2 and the auxiliary spring brat 100 are connected in advance by compressing the displacement amount of the movable range in the X-direction arrangement in advance to exhibit the vibration response characteristics utilizing the lateral rigidity (for example, a total of 8 pieces). By arranging the compressed vertical coil spring 111, a plurality of vibration response characteristics utilizing the lateral rigidity are exhibited by pre-compressing the displacement amount of the movable range in the Y direction arrangement between the auxiliary spring bracket 100 and the vibration mass 11. The feature is that the precompressed vertical coil springs 121 (8 in total) are arranged, and the remaining configuration is the same as in the case of the above-described embodiment.

変形例に係る構造物用制振装置1Aにおいても既述した実施例の構造物用制振装置1の場合と同様にして、X方向加振時においては、前記第2の板バネ機構部41の板バネ42のX方向の弾性変形、復元作用に伴って振動マス11によるX方向の制振動作が実行され、また、Y方向加振時においては、前記第1の板バネ機構部31の板バネ32のY方向の弾性変形、復元作用に伴って振動マス11によるY方向の制振動作が実行される。 In the structural vibration damping device 1A according to the modified example, similarly to the case of the structural vibration damping device 1 of the above-described embodiment, the second leaf spring mechanism portion 41 is used during vibration in the X direction. In accordance with the elastic deformation and restoration action of the leaf spring 42 in the X direction, the vibration damping operation in the X direction is executed by the vibration mass 11, and when the leaf spring 42 is vibrated in the Y direction, the first leaf spring mechanism portion 31 The vibration damping operation in the Y direction is executed by the vibration mass 11 along with the elastic deformation and restoration action of the leaf spring 32 in the Y direction.

この場合に、変形例に係る構造物用制振装置1Aにおいて、X方向加振時においては、前記補助バネブラケット100が前記X方向板バネブラケット21、前記第1の板バネ機構部31、ベースプレートと一体的になっているので、前記補助バネブラケット100は前記振動マス11のX方向の振動とは異なる振動数でX方向に変位する。 In this case, in the structural vibration damping device 1A according to the modified example, the auxiliary spring bracket 100 is the X-direction leaf spring bracket 21, the first leaf spring mechanism portion 31, and the base plate at the time of vibration in the X direction. The auxiliary spring bracket 100 is displaced in the X direction at a frequency different from the vibration of the vibration mass 11 in the X direction.

これにより、前記補助バネブラケット100に配置したY方向配列の前記予圧縮縦コイルバネ121が横剛性を利用した振動応答特性をもってX方向に揺動変位する。 As a result, the precompressed vertical coil spring 121 arranged in the Y direction arranged on the auxiliary spring bracket 100 swings and displaces in the X direction with a vibration response characteristic utilizing the lateral rigidity.

他方、変形例に係る構造物用制振装置1Aにおいて、Y方向加振時においては、前記第1の板バネ機構部31の板バネ32のY方向の弾性変形、復元作用に伴って振動マス11によるY方向の制振動作が実行される際に、前記振動マス11、第2板バネ機構部41、前記補助バネブラケット100が一体的となってベースプレート2上でY方向に振動するので、前記補助バネブラケット100はベースプレート2のY方向の振動とは異なる振動数でY方向に変位する。 On the other hand, in the structural vibration damping device 1A according to the modified example, when vibrating in the Y direction, the vibration mass is accompanied by the elastic deformation and the restoring action of the leaf spring 32 of the first leaf spring mechanism portion 31 in the Y direction. When the vibration damping operation in the Y direction is executed by 11, the vibration mass 11, the second leaf spring mechanism portion 41, and the auxiliary spring bracket 100 are integrally vibrated in the Y direction on the base plate 2. The auxiliary spring bracket 100 is displaced in the Y direction at a frequency different from the vibration of the base plate 2 in the Y direction.

これにより、前記補助バネブラケット100に配置したX方向配列の前記予圧縮縦コイルバネ111が横剛性を利用した振動応答特性をもってY方向に揺動変位する。 As a result, the precompressed vertical coil springs 111 arranged in the X direction arranged on the auxiliary spring bracket 100 are oscillated and displaced in the Y direction with a vibration response characteristic utilizing the lateral rigidity.

以上説明した変形例の構造物用制振装置1Aによれば、前記予引張横コイルバネ71に替えて前記予圧縮縦コイルバネ111、121を採用した点を除いて実施例の構造物用制振装置1の場合と同様な効果を奏する。 According to the structural vibration damping device 1A of the modified example described above, the structural vibration damping device of the embodiment except that the precompressed vertical coil springs 111 and 121 are used instead of the pretension lateral coil spring 71. The same effect as in the case of 1 is obtained.

前記予圧縮縦コイルバネ111、121は、自由長より5〜10mm程度短い有効距離を有するように予圧縮した状態で垂直配置に複数個設置される構成としており、この予圧縮縦コイルバネの横剛性を利用し、かつ、線形範囲で使用するものである。 A plurality of the precompressed vertical coil springs 111 and 121 are installed in a vertical arrangement in a precompressed state so as to have an effective distance of about 5 to 10 mm shorter than the free length. It is used and used in a linear range.

前記予圧縮縦コイルバネ111、121は、各々バネ定数を極めて小さく設定しているので片手で予圧縮が可能であり簡略容易に上述した箇所に設置可能である。 Since the precompressed vertical coil springs 111 and 121 are each set to have extremely small spring constants, precompression can be performed with one hand and can be easily installed at the above-mentioned locations.

更に、振動数調整用に使用する前記予圧縮縦コイルバネ111、121は、いずれも横剛性を利用するものであり、これらの予圧縮縦コイルバネ111、121を異なる横剛性を有する予圧縮縦コイルバネに取り替えることにより、前記振動マス11の水平2軸方向の制振動作を互いに干渉を生じこることなく個別に調整できる。 Further, the precompressed vertical coil springs 111 and 121 used for frequency adjustment all utilize the lateral rigidity, and these precompressed vertical coil springs 111 and 121 are used as precompressed vertical coil springs having different lateral rigidity. By replacing the vibration mass 11, the vibration damping operation in the horizontal biaxial direction can be individually adjusted without causing interference with each other.

上述した実施例、変形例の構造物用制振装置1、1Aにおいて、対象構造物の振動数調整範囲によっては、予引張横コイルバネ71、予圧縮縦コイルバネ111、121の双方を併用することも可能である。 In the structural vibration damping devices 1 and 1A of the above-described examples and modifications, both the pre-tension horizontal coil spring 71 and the pre-compression vertical coil springs 111 and 121 may be used in combination depending on the frequency adjustment range of the target structure. It is possible.

いずれの場合も複数個使用することで、X軸、Y軸とも独立して細かい振動数範囲まで調整が可能となる。 In either case, by using a plurality of the X-axis and the Y-axis independently, it is possible to adjust to a fine frequency range.

また、上述した実施例、変形例の構造物用制振装置1、1Aにおいて、前記ベースプレート2を例えば構造物の天井面に取り付ける等して上下逆配置とすることもでき、板バネ両端固定構造で2軸方向独立タイプとして、かつ、振動マス11の吊り下げ構造の振り子タイプとしても適用可能である。 Further, in the structural vibration damping devices 1 and 1A of the above-described examples and modifications, the base plate 2 can be mounted upside down, for example, on the ceiling surface of the structure, and the leaf springs are fixed at both ends. It can also be applied as a biaxially independent type and as a pendulum type with a suspension structure of the vibration mass 11.

更に、前記構造物用制振装置1、1Aを各々複数基使用した態様とすれば、各々マルチタイプの制振振動数とすることも可能であり、地震時等における個々の構造物の振動数に適合させることがより簡略になる。 Further, if a plurality of the above-mentioned structure vibration damping devices 1 and 1A are used, it is possible to set each of them to a multi-type vibration damping frequency, and the frequency of each structure at the time of an earthquake or the like. It becomes simpler to adapt to.

本発明の構造物用制振装置は、主に戸建て住宅の制振用として利用する場合の他、例えば精密機械、精密電子機器、比較的小規模の構造物等の制振用として広範に適用可能である。 The vibration damping device for structures of the present invention is widely applied not only when it is mainly used for vibration damping of a detached house, but also for vibration damping of, for example, precision machinery, precision electronic equipment, and relatively small-scale structures. It is possible.

1 構造物用制振装置
1A 構造物用制振装置
2 ベースプレート
2a 開口部
11 振動マス
12 上マス
13 下マス
21 X方向板バネブラケット
22 横架片
23 垂下片
24 板バネ下部固定金具
25 板バネ取り付け金具
31 第1の板バネ機構部
32 板バネ
41 第2の板バネ機構部
42 板バネ
51 補助バネブラケット
52 側片部
53 側片部
54 孔
55 ボルト
56 ナット
57 バネ端受け具
61 固定バネ支持材
62 ボルト
63 ナット
71 予引張横コイルバネ
81 制振ダンパー
91 ストッパー機構部
92 高減衰ゴム
93 Iボルト
100 補助バネブラケット
111 予圧縮縦コイルバネ
121 予圧縮縦コイルバネ
1 Structural damping device 1A Structural damping device 2 Base plate 2a Opening 11 Vibration mass 12 Upper mass 13 Lower mass 21 X-direction leaf spring bracket 22 Horizontal piece 23 Hanging piece 24 Leaf spring lower fixing bracket 25 Leaf spring Mounting bracket 31 1st leaf spring mechanism 32 Leaf spring 41 2nd leaf spring mechanism 42 Leaf spring 51 Auxiliary spring bracket 52 Side piece 53 Side piece 54 Hole 55 Bolt 56 Nut 57 Spring end receiver 61 Fixed spring Support material 62 Bolt 63 Nut 71 Pre-tension lateral coil spring 81 Anti-vibration damper 91 Stopper mechanism 92 High damping rubber 93 I bolt 100 Auxiliary spring bracket 111 Pre-compression vertical coil spring 121 Pre-compression vertical coil spring

Claims (8)

四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、
前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置されるとともに、その両端部を前記ベースプレートに非接触となる近傍位置まで垂下した両X方向板バネブラケットと、
前記両X方向板バネブラケットの垂下した下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、
前記ベースプレートの両X方向辺部側と前記両X方向板バネブラケットとの間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、
前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、
前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、
を有することを特徴とする構造物用制振装置。
A structure damping device having a square-shaped base plate and a square-shaped vibrating mass arranged above the base plate, and the vibrating mass having an inverted leaf spring pendulum structure.
It is arranged in the X direction above the positions near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction, and both ends thereof are not in contact with the base plate. Both X-direction leaf spring brackets that hang down to a nearby position,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, each protruding in the X direction from the hanging lower end of both X-direction leaf spring brackets.
For Y-direction vibration restoration, which is fixedly arranged at both ends between both X-direction side portions of the base plate and both X-direction leaf spring brackets and supports both X-direction leaf spring brackets in a non-contact state on the base plate. With a plurality of first leaf spring mechanism parts,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism portions for restoring vibration in the X direction, which are fixedly arranged at both ends between the end faces of the vibration mass in the Y direction.
A plurality of damping dampers arranged between the base plate and the vibration mass,
A vibration damping device for a structure, which is characterized by having.
四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、
前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置されるとともに、その両端部を前記ベースプレートに非接触となる近傍位置まで垂下した両X方向板バネブラケットと、
前記両X方向板バネブラケットの垂下した下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、
前記ベースプレートの両X方向辺部側と前記両X方向板バネブラケットとの間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、
前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、
前記振動マスの下方で、かつ、前記両X方向板バネブラケットの内側位置において両X方向板バネブラケットに連結された状態で配置した略四角枠状の補助バネブラケットと、
前記ベースプレートのX方向、Y方向の各辺近傍位置に立設した複数の固定バネ支持材と、前記補助バネブラケットのX方向、Y方向の各側片部との間に掛け渡した可動範囲の変位量分を予め引張って振動応答特性が線形範囲内となるようにしたX方向、Y方向の複数の予引張横コイルバネと、
前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、
を有することを特徴とする構造物用制振装置。
A structure damping device having a square-shaped base plate and a square-shaped vibrating mass arranged above the base plate, and the vibrating mass having an inverted leaf spring pendulum structure.
It is arranged in the X direction above the positions near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction, and both ends thereof are not in contact with the base plate. Both X-direction leaf spring brackets that hang down to a nearby position,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, each protruding in the X direction from the hanging lower end of both X-direction leaf spring brackets.
For Y-direction vibration restoration, which is fixedly arranged at both ends between both X-direction side portions of the base plate and both X-direction leaf spring brackets and supports both X-direction leaf spring brackets in a non-contact state on the base plate. With a plurality of first leaf spring mechanism parts,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism portions for restoring vibration in the X direction, which are fixedly arranged at both ends between the end faces of the vibration mass in the Y direction.
A substantially square frame-shaped auxiliary spring bracket arranged below the vibration mass and in a state of being connected to both X-direction leaf spring brackets at the inner position of both X-direction leaf spring brackets.
The movable range spanned between a plurality of fixed spring support members erected near each side of the base plate in the X and Y directions and one side of the auxiliary spring bracket in the X and Y directions. A plurality of pre-tension lateral coil springs in the X and Y directions in which the amount of displacement is pulled in advance so that the vibration response characteristics are within the linear range.
A plurality of damping dampers arranged between the base plate and the vibration mass,
A vibration damping device for a structure, which is characterized by having.
四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、
前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置される横架片と、この横架片の両端部から前記ベースプレートに非接触となる近傍位置まで垂下した両垂下片とを具備する両X方向板バネブラケットと、
前記両X方向板バネブラケットの各垂下片の下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、
前記ベースプレートのX方向両辺部側と前記両X方向板バネブラケットの横架片との間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、
前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、
前記振動マスの下方で、かつ、前記両X方向板バネブラケットの内側位置において両X方向板バネブラケットに連結された状態で配置した略四角枠状の補助バネブラケットと、
前記ベースプレートのX方向、Y方向の各辺近傍位置に立設した複数の固定バネ支持材と、前記補助バネブラケットのX方向、Y方向の各側片部に設けた複数のバネ端受け具との間に掛け渡した可動範囲の変位量分を予め引張って振動応答特性が線形範囲内となるようにしたX方向、Y方向の複数の予引張横コイルバネと、
前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、
を有することを特徴とする構造物用制振装置。
A structure damping device having a square-shaped base plate and a square-shaped vibrating mass arranged above the base plate, and the vibrating mass having an inverted leaf spring pendulum structure.
From a horizontal piece arranged in the X direction above the position near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction, and from both ends of the horizontal piece. Both X-direction leaf spring brackets including both hanging pieces hanging to a position close to the base plate in non-contact, and
A plurality of leaf spring lower fixing brackets arranged in the Y direction protruding in the X direction from the lower end of each hanging piece of both X-direction leaf spring brackets, and
Y-direction vibration that is fixedly arranged at both ends between both sides of the base plate in the X direction and the horizontal piece of the leaf spring bracket in both X directions and supports the leaf spring brackets in both X directions in a non-contact state on the base plate. A plurality of first leaf spring mechanism parts for restoration and
A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism portions for restoring vibration in the X direction, which are fixedly arranged at both ends between the end faces of the vibration mass in the Y direction.
A substantially square frame-shaped auxiliary spring bracket arranged below the vibration mass and in a state of being connected to both X-direction leaf spring brackets at the inner position of both X-direction leaf spring brackets.
A plurality of fixed spring support members erected near each side of the base plate in the X and Y directions, and a plurality of spring end receivers provided on each side of the auxiliary spring bracket in the X and Y directions. Multiple pre-tension lateral coil springs in the X and Y directions, in which the amount of displacement of the movable range spanned between the two is pulled in advance so that the vibration response characteristics are within the linear range.
A plurality of damping dampers arranged between the base plate and the vibration mass,
A vibration damping device for a structure, which is characterized by having.
前記各バネ端受け具は、予引張横コイルバネの一端を挿通し掛け止める孔付きボルトを備えることを特徴とする請求項3記載の構造物用制振装置。 The vibration damping device for a structure according to claim 3, wherein each spring end receiver includes a bolt with a hole through which one end of a pre-tensioned lateral coil spring is inserted and fastened. 前記ベースプレートは、前記振動マスの過振動を防止するストッパー機構部を備えるとともに、このストッパー機構部の一部に前記振動マスの振動減衰用の高減衰ゴムを備えることを特徴とする請求項1乃至4のいずれか1項に記載の構造物用制振装置。 The base plate is provided with a stopper mechanism for preventing excessive vibration of the vibration mass, and a part of the stopper mechanism is provided with a high damping rubber for damping the vibration of the vibration mass. The vibration damping device for a structure according to any one of 4. 四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、
前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置されるとともに、その両端部を前記ベースプレートに非接触となる近傍位置まで垂下した両X方向板バネブラケットと、
前記両X方向板バネブラケットの垂下した下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、
前記ベースプレートの両X方向辺部側と前記両X方向板バネブラケットとの間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、
前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、
前記振動マスの下方で、かつ、前記両X方向板バネブラケットの内側位置において前記両X方向板バネブラケットに連結された状態で配置した略四角枠状の補助バネブラケットと、
前記ベースプレートと前記補助バネブラケット間、及び、前記補助バネブラケットと前記振動マス間に各々配置する可動範囲の変位量分を予め圧縮して横剛性を利用した振動応答特性を発揮させる複数の予圧縮縦コイルバネと、
前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、
を有することを特徴とする軽量構造物用制振装置。
A structure damping device having a square-shaped base plate and a square-shaped vibrating mass arranged above the base plate, and the vibrating mass having an inverted leaf spring pendulum structure.
It is arranged in the X direction above the positions near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction, and both ends thereof are not in contact with the base plate. Both X-direction leaf spring brackets that hang down to a nearby position,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, each protruding in the X direction from the hanging lower end of both X-direction leaf spring brackets.
For Y-direction vibration restoration, which is fixedly arranged at both ends between both X-direction side portions of the base plate and both X-direction leaf spring brackets and supports both X-direction leaf spring brackets in a non-contact state on the base plate. With a plurality of first leaf spring mechanism parts,
A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism portions for restoring vibration in the X direction, which are fixedly arranged at both ends between the end faces of the vibration mass in the Y direction.
A substantially square frame-shaped auxiliary spring bracket arranged below the vibration mass and in a state of being connected to the both X-direction leaf spring brackets at the inner position of the both X-direction leaf spring brackets.
A plurality of precompressions that exert vibration response characteristics utilizing lateral rigidity by pre-compressing the displacement amount of the movable range arranged between the base plate and the auxiliary spring bracket and between the auxiliary spring bracket and the vibration mass. Vertical coil spring and
A plurality of damping dampers arranged between the base plate and the vibration mass,
A vibration damping device for lightweight structures, which is characterized by having.
四角形状のベースプレートと、前記ベースプレートの上方に配置する四角形状の振動マスと、を有し、前記振動マスを倒立板バネ振り子構造とした構造物用制振装置であって、
前記ベースプレートのX方向両辺部近傍位置の上方で、かつ、前記振動マスのX方向両辺部の下側位置に沿うようにX方向に配置される横架片と、この横架片の両端部から前記ベースプレートに非接触となる近傍位置まで垂下した両垂下片とを具備する両X方向板バネブラケットと、
前記両X方向板バネブラケットの各垂下片の下端部から各々X方向に突出したY方向に配列される複数の板バネ下部固定金具と、
前記ベースプレートのX方向両隅部側と前記両X方向板バネブラケットの横架片との間に両端固定で配置され前記両X方向板バネブラケットを前記ベースプレート上で非接触状態に支持するY方向振動復元用の複数の第1の板バネ機構部と、
前記Y方向に配列される複数の板バネ下部固定金具と、前記振動マスのY方向端面との間に両端固定で配置されるX方向振動復元用の複数の第2の板バネ機構部と、
前記振動マスの下方で、かつ、前記両X方向板バネブラケットの内側位置において前記両X方向板バネブラケットに連結された状態で配置した略四角枠状の補助バネブラケットと、
前記ベースプレートと前記補助バネブラット間にX方向配列で、前記補助バネブラケットと前記振動マス間にY方向配列で各々配置する可動範囲の変位量分を予め圧縮して横剛性を利用した振動応答特性を発揮させる複数の予圧縮縦コイルバネと、
前記ベースプレートと前記振動マスとの間に配置した複数の制振ダンパーと、
を有することを特徴とする軽量構造物用制振装置。
A structure damping device having a square-shaped base plate and a square-shaped vibrating mass arranged above the base plate, and the vibrating mass having an inverted leaf spring pendulum structure.
From a horizontal piece arranged in the X direction above the position near both sides of the base plate in the X direction and along the lower positions of both sides of the vibration mass in the X direction, and from both ends of the horizontal piece. Both X-direction leaf spring brackets including both hanging pieces hanging to a position close to the base plate in non-contact
A plurality of leaf spring lower fixing brackets arranged in the Y direction protruding in the X direction from the lower end of each hanging piece of both X-direction leaf spring brackets, and
Both corners of the base plate in the X direction and the horizontal pieces of the leaf spring brackets in both X directions are fixedly arranged at both ends, and the leaf spring brackets in both X directions are supported on the base plate in a non-contact state in the Y direction. A plurality of first leaf spring mechanism parts for vibration restoration, and
A plurality of leaf spring lower fixing brackets arranged in the Y direction, and a plurality of second leaf spring mechanism portions for restoring vibration in the X direction, which are fixedly arranged at both ends between the end faces of the vibration mass in the Y direction.
A substantially square frame-shaped auxiliary spring bracket arranged below the vibration mass and in a state of being connected to the both X-direction leaf spring brackets at the inner position of the both X-direction leaf spring brackets.
Vibration response characteristics using lateral rigidity are obtained by pre-compressing the displacement amount of the movable range arranged between the base plate and the auxiliary spring brat in the X direction arrangement and between the auxiliary spring bracket and the vibration mass in the Y direction arrangement. Multiple pre-compressed vertical coil springs to exert,
A plurality of damping dampers arranged between the base plate and the vibration mass,
A vibration damping device for lightweight structures, which is characterized by having.
前記ベースプレートは、前記振動マスの過振動を防止するストッパー機構部を備えることを特徴とする請求項6又は7に記載の構造物用制振装置。 The vibration damping device for a structure according to claim 6 or 7, wherein the base plate includes a stopper mechanism portion for preventing excessive vibration of the vibration mass.
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