JP4410922B2

JP4410922B2 - Vibration control device

Info

Publication number: JP4410922B2
Application number: JP2000300295A
Authority: JP
Inventors: 洋平片山; 宏治福井; 寛筑間; 亮松野; 敏治前田; 純二橋本
Original assignee: Hitachi Automotive Systems Ltd
Current assignee: Hitachi Astemo Ltd
Priority date: 2000-09-29
Filing date: 2000-09-29
Publication date: 2010-02-10
Anticipated expiration: 2020-09-29
Also published as: JP2002106204A

Description

【０００１】
【発明の属する技術分野】
本発明は制振装置に係り、特に構造物の振動エネルギを吸収するダンパが壁内に取り付けられるよう構成された制振装置に関する。
【０００２】
【従来の技術】
ビルや住宅等の構造物の耐震性を高める手段として、油圧ダンパを上部伝達部材と下部伝達部材との間に介在させてなる制振装置が開発されつつある。
【０００３】
この制振装置では、梁に固定される上部伝達部材と床等の基礎に固定される下部伝達部材との間に油圧ダンパが取り付けられており、油圧ダンパのシリンダ端部及びピストンロッド端部が水平方向の振動を伝える上部伝達部材又は下部伝達部材に連結されている。
【０００４】
図７は従来の制振装置の一例を示す正面図である。
【０００５】
図７に示されるように、従来の制振装置は、下梁１と、上梁２、柱３との間に形成された平面状空間４内に油圧ダンパ５を設けてなる。油圧ダンパ５は、上梁２に固定された上部伝達部材６と下梁１に固定された下部伝達部材７との間に配置されており、ピストンロッド５ａの端部が上部伝達部材６の下端に固定されたブラケット６ａに結合され、シリンダ５ｂの端部が下部伝達部材７の上端に固定されたブラケット７ａに結合される。そのため、上部伝達部材６及び下部伝達部材７に構造物の振動が伝播されると、上部伝達部材６と下部伝達部材７との間で水平方向の相対変位が発生する。これにより、油圧ダンパ５は、ピストンロッド５ａがシリンダ５ｂに対して摺動して減衰力を発生する。
【０００６】
また、住宅の建築工法が２×４の場合には、各柱３間を補強するためのスタッド８が下梁１と上梁２との間を結合するように設けられている。そのため、上部伝達部材６及び下部伝達部材７は、一般住宅の場合の約半分の間隔に設けられた柱３とスタッド８との間に収納される寸法形状（横幅寸法＝ｂ）に形成されており、且つ油圧ダンパ５も柱３とスタッド８との間に収納されるように設けられている。
【０００７】
この建築工法によって上部伝達部材６及び下部伝達部材７を一般住宅の半分の幅にするため、上部伝達部材６及び下部伝達部材７が上下方向に細長く延在する形状になっている。そして、上部伝達部材６及び下部伝達部材７の端部は、Ｌ字状のブラケット９に釘などの締結部材を打ち込んで固定される。
【０００８】
【発明が解決しようとする課題】
上記のような建築工法に適用される制振装置では、上部伝達部材６及び下部伝達部材７の横幅寸法が一般住宅の約半分位に小さくなっているので、水平方向の振動が伝播されたとき、上部伝達部材６及び下部伝達部材７自体が傾きやすくなっており、その際ブラケット９に打ち込まれた締結部材を引き抜くような力（てこの原理）が作用して上部伝達部材６及び下部伝達部材７の結合部分が上梁２及び下梁１から浮き上がってしまうという問題があった。
【０００９】
そこで、本発明は上記課題を解決した制振装置を提供することを目的とする。
【００１０】
【課題を解決するための手段】
上記課題を解決するため、本発明は以下のような特徴を有する。
【００１１】
上記請求項１の発明は、前記上部伝達部材及び前記下部伝達部材の前記自由端の左右方向の幅が前記２本の柱の間隔よりも幅狭となるように形成し、前記上部伝達部材または前記下部伝達部材の固定端の少なくとも一方の伝達部材の前記固定端の横幅が前記２本の柱の間隔と略同一寸法であり、且つ当該固定端の左右側面を前記２本の柱の側面に当接させた状態で上部伝達部材及び下部伝達部材の固定端を上梁及び下梁に固定させてなり、上部伝達部材または下部伝達部材の横幅寸法が小さくなっても上部伝達部材または下部伝達部材の固定端の左右側面が柱の側面に当接して固定端が上梁及び下梁から浮き上がることを防止できる。
【００１２】
また、請求項２記載の発明は、前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の側面を当接させ、前記柱の他側の側面に前記上部伝達部材または前記下部伝達部材を保持する補強部材を当接させた状態で前記上部伝達部材または前記下部伝達部材を前記上梁及び下梁に固定させたものであり、上部伝達部材または下部伝達部材の横幅寸法が小さくなっても上部伝達部材及び下部伝達部材の両側が柱の側面に当接して上梁及び下梁から浮き上がることを防止できる。
【００１３】
また、請求項３記載の発明は、前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の側面を当接させ、前記柱の他側の側面に補強部材を当接させた状態で前記上部伝達部材または前記下部伝達部材と前記補強部材との間を連結する連結部材を介して固定したものであり、上部伝達部材または下部伝達部材の横幅寸法が小さくなっても上部伝達部材または下部伝達部材の両側が柱の側面に当接して上梁及び下梁から浮き上がることを防止できる。
【００１４】
【発明の実施の形態】
以下、添付図面を参照して本発明の実施の形態を詳細に説明する。
【００１５】
図１は本発明になる制振装置の一実施例を示す正面図である。また、図２は図１中Ｂ部拡大図であり、（Ａ）はＢ部正面図、（Ｂ）はＡ−Ａ線に沿う縦断面図である。
【００１６】
図１及び図２に示されるように、制振装置１０は、１階床に支持されるように横架された下梁１２（基礎）と、２階床を支持するように横架された上梁１４と、下梁１２と上梁１４との間に起立された柱１６（請求項に記載の柱）と、下梁１２と上梁１４との間で柱１６と平行に延在された補強用のスタッド１７（請求項に記載の柱）とにより形成された長方形の壁面状空間１８に油圧ダンパ２０が取り付けられている。尚、制振装置１０は、２×４工法により建築された住宅に用いられるものであり、柱１６とスタッド１７との間隔が柱１６間の間隔の約１／２に設定されている。
【００１７】
壁面状空間１８内には、上記油圧ダンパ２０の他にＬ字状に形成されたブラケット２１に釘などの締結部材２１ａを打ち込んで下梁１２に固定される下部伝達部材２２と、Ｌ字状に形成されたブラケット２３に釘などの締結部材２３ａを打ち込んで上梁１４に固定される上部伝達部材２４とが設けられている。下部伝達部材２２及び上部伝達部材２４は、夫々同一の台形形状に形成されており、下梁１２、上梁１４に固定される固定端２２ａ，２４ａが柱１６とスタッド１７との間に嵌合固定され、自由端２２ｂ，２４ｂが幅狭に形成されている。そして、油圧ダンパ２０は、下部伝達部材２２の自由端２２ｂと上部伝達部材２４の自由端２４ｂとの間の相対変位を吸収するように取り付けられる。
【００１８】
また、下部伝達部材２２の上端側面にはダンパ支持部材２６が取り付けられており、上部伝達部材２４の下端側面にはダンパ支持部材２８が取り付けられている。そして、下部伝達部材２２のダンパ支持部材２６と上部伝達部材２４のダンパ支持部材２８との間には、水平方向の振動エネルギを吸収して振動を減衰させる油圧ダンパ２０が連結されている。
【００１９】
油圧ダンパ２０は、シリンダ２０ａとピストンロッド２０ｂとを有し、ピストンロッド２０ｂの端部が上部伝達部材２４の自由端２４ｂに固定されたダンパ支持部材２８のブラケット２８ａに結合され、シリンダ２０ａの端部が下部伝達部材２２の自由端２２ｂに固定されたダンパ支持部材２６のブラケット２６ａに結合される。そのため、上部伝達部材２４及び下部伝達部材２２に構造物の振動が伝播されると、油圧ダンパ２０は、ピストンロッド２０ｂがシリンダ２０ａに対して摺動して減衰力を発生させる。従って、油圧ダンパ２０は、下部伝達部２２と上部伝達部材２４との間で壁面状空間１８の平面と平行なＣ方向の振動を減衰するように取り付けられている。
【００２０】
上部伝達部材２４は、上梁１４に当接する固定端２４ａの横幅が柱１６とスタッド１７との間隔と略同一寸法に形成されている。そのため、上部伝達部材２４は、左右側面２４ｃ，２４ｄが柱１６の側面とスタッド１７の側面に隙間無く当接した状態に取り付けられる。従って、上部伝達部材２４は、上梁１４に当接する固定端２４ａが上梁１４により位置規制されるとともに、固定端２４ａの左右側面２４ｃ，２４ｄが柱１６の側面とスタッド１７の側面によって位置規制されており、３方向でがたつきのない状態に保持される。
【００２１】
さらに、上部伝達部材２４は、左右側面２４ｃ，２４ｄの上部が傾斜面２４ｅ，２４ｆとなっており、柱１６及びスタッド１７の側面から離間している。そのため、油圧ダンパ２０のピストンロッド２０ｂが連結された自由端２４ｂが左右方向（Ｃ方向）に変位可能に設けられている。
【００２２】
下部伝達部材２２は、下梁１２に当接する固定端２２ａの横幅が柱１６とスタッド１７との間隔と略同一寸法に形成されている。そのため、下部伝達部材２２は、左右側面２２ｃ，２２ｄが柱１６の側面とスタッド１７の側面に隙間無く当接した状態に取り付けられる。従って、下部伝達部材２２は、下梁１２に当接する固定端２２ａが下梁１２により位置規制されるとともに、固定端２２ａの左右側面２２ｃ，２２ｄが柱１６の側面とスタッド１７の側面によって位置規制されており、３方向でがたつきのない状態に保持される。
【００２３】
さらに、下部伝達部材２２は、左右側面２２ｃ，２２ｄの上部が傾斜面２２ｅ，２２ｆとなっており、柱１６及びスタッド１７の側面から離間している。そのため、油圧ダンパ２０のシリンダ２０ａが連結された自由端２２ｂが左右方向（Ｃ方向）に変位可能に設けられており、振動が入力されると油圧ダンパ２０は減衰力を発生する。
【００２４】
従って、制振装置１０は、下部伝達部材２２及び上部伝達部材２４の固定部２２ａ，２４ａが強固に固定されているので、下部伝達部材２２及び上部伝達部材２４の横幅寸法が通常の約１／２に小さくなった場合でも左右方向（Ｃ方向）の振動が入力された際に下梁１２、上梁１４から浮き上がることを防止できる。
【００２５】
また、上記油圧ダンパ２０が設けられた壁面状空間１８の両側に配置された壁面状空間４２，４４には、下梁１２、上梁１４に当接した状態で固定された補強板３０，３２が嵌合されている。また、補強板３０，３２は、横幅が柱１６とスタッド１７との間隔と略同一寸法に形成されている。そのため、補強板３０，３２は、両側面が柱１６、スタッド１７の側面に当接した状態でＬ字状に形成されたブラケット２１，２３に釘などの締結部材２１ａ，２３ａを打ち込んで固定される。よって、油圧ダンパ２０が設けられていない壁面状空間４２，４４においても、柱１６とスタッド１７との間に嵌合された補強板３０，３２により柱１６及びスタッド１７の固定端の強度が高められている。
【００２６】
さらに、補強板３０，３２と下部伝達部材２２及び上部伝達部材２４との間には、金属板からなる連結板３４，３６が横架されるように固定される。尚、補強板３０，３２は、柱１６及びスタッド１７よりも薄いので、連結板３４，３６は、スペーサとしてのあて木３８，４０を介在させた状態で釘などの締結部材３４ａ，３６ａを打ち込んで補強板３０，３２に締結される。
【００２７】
このように、補強板３０，３２と下部伝達部材２２及び上部伝達部材２４は、柱１６とスタッド１７との間に隙間無く嵌合されるとともに、連結板３４，３６により連結固定されるため、下梁１２、上梁１４から浮き上がることが確実に防止される。
【００２８】
図３は本発明になる制振装置の変形例１を示す拡大図であり、（Ａ）は正面拡大図、（Ｂ）は側断面図である。また、図４は補強金具を拡大して示す図であり、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は平面図である。尚、図３において、上記図１及び図２と同一部分には同一符号を付してその説明は省略する。
【００２９】
図３（Ａ）（Ｂ）及び図４（Ａ）乃至（Ｃ）に示されるように、変形例１では、上記補強板３０，３２及び連結板３４，３６の代わりに金属板からなる補強金具５０が取り付けられている。
【００３０】
補強金具５０は、下梁１２または上梁１４に当接するベース５０ａと、ベース５０ａの上面に起立する台形形状の支持板５０ｂ，５０ｃと、ベース５０ａ及び支持板５０ｂ，５０ｃに設けられた締結用小孔５０ｄ，５０ｅを有する。
【００３１】
締結用小孔５０ｅは、柱１６またはスタッド１７の前面と後面に対向する第１列５０ｆと、下部伝達部材２２の固定部２２ａまたは上部伝達部材２４の固定部２４ａに対向する第２列５０ｇとに分かれて設けられている。
【００３２】
補強金具５０は、例えば、図３（Ａ）（Ｂ）に示されるように、ベース５０ａを下梁１２の上面に当接させ、且つ締結用小孔５０ｅの第１列５０ｆがスタッド１７の前面と後面に対向し、締結用小孔５０ｅの第２列５０ｇが下部伝達部２２の固定部２２ａに対向するように位置合わせした状態で、締結用小孔５０ｄ，５０ｅに釘などの締結部材５１を打ち込んでベース５０ａを下梁１２に固定させ、且つ支持板５０ｂ，５０ｃをスタッド１７及び下部伝達部２２に固定する。
【００３３】
このように、補強金具５０によりスタッド１７及び下部伝達部２２を下梁１２に固定することができるので、上記補強板３０，３２や連結板３４，３６を用いる場合よりも部品点数が少なくて済み、製造コストを安価に抑えることができる。
【００３４】
図５は本発明になる制振装置の変形例２を示す拡大図であり、（Ａ）は正面拡大図、（Ｂ）は側断面図である。また、図６は補強金具を拡大して示す図であり、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は平面図である。尚、図５において、上記図１及び図２と同一部分には同一符号を付してその説明は省略する。
【００３５】
図５（Ａ）（Ｂ）及び図６（Ａ）乃至（Ｃ）に示されるように、変形例２では、上記補強板３０，３２及び連結板３４，３６の代わりに金属板からなる補強金具６０が取り付けられている。
【００３６】
この補強金具６０は、下梁１２または上梁１４に当接するベース５０ａと、ベース５０ａの端部より上方に起立する取付板６０ｂと、ベース６０ａと取付板６０ｂを連結するように設けられた三角形状の支持板６０ｃと、ベース５０ａ及び取付板６０ｂに設けられた締結用小孔６０ｄ，６０ｅを有する。
【００３７】
補強金具６０は、例えば、図５（Ａ）（Ｂ）に示されるように、ベース６０ａを下梁１２の上面に当接させ、且つ取付板６０ｂをスタッド１７の側面に対向させた状態で、締結用小孔６０ｄ，６０ｅに釘などの締結部材６１を打ち込んでベース６０ａを下梁１２に固定させ、且つ取付板６０ｂをスタッド１７に固定する。尚、取付板６０ｂに打ち込まれた締結部材６１は、スタッド１７を貫通して下部伝達部材２２の側面２２ｂに食い込む。そのため、下部伝達部材２２の側面２２ｂは、スタッド１７に締結される。
【００３８】
このように、補強金具６０によりスタッド１７及び下部伝達部２２を下梁１２に固定することができるので、上記補強板３０，３２や連結板３４，３６を用いる場合よりも部品点数が少なくて済み、製造コストを安価に抑えることができる。
【００３９】
また、上記実施の形態では、一台の油圧ダンパ２０を配置させる構成を一例として挙げたが、これに限らず、例えば、複数台の油圧ダンパを設ける構成としても良いのは勿論である。
【００４０】
上記実施の形態では、連結部材として連結板３４，３６を用いた例を示したが、これに限らず、例えば、内壁パネルの内側及び外壁パネルの外側から図１に示す連結板３４，３６の位置に螺子または釘を打ち込むことにより、内壁パネルや外壁パネルを連結部材として利用しても良い。
【００４１】
また、本発明の構造は、上部伝達部材または下部伝達部材の一方の伝達部材に用いても良く、また、上部伝達部材または下部伝達部材の左右の一方側のみ柱に当接させ、他方側は当接させずに別の手段で固定させても良い。この別の手段として図４の補強金具を上部伝達部材または下部伝達部材に直接取り付けることもできる。
【００４２】
【発明の効果】
以上説明したように、請求項１の発明によれば、前記上部伝達部材及び前記下部伝達部材の前記自由端の左右方向の幅が前記２本の柱の間隔よりも幅狭となるように形成し、前記上部伝達部材または前記下部伝達部材の少なくとも一方の伝達部材の前記固定端の横幅が前記２本の柱の間隔と略同一寸法であり、且つ当該固定端の左右側面を固定端の２本の柱の側面に当接させた状態で上部伝達部材または下部伝達部材の固定端を上梁及び下梁に固定させたため、上部伝達部材または下部伝達部材の横幅寸法が小さくなっても上部伝達部材または下部伝達部材の固定端の両側が柱の側面に当接して固定端が上梁及び下梁から浮き上がることを防止できる。
【００４３】
また、請求項２記載の発明によれば、前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の側面を当接させ、前記柱の他側の側面に前記上部伝達部材または前記下部伝達部材を保持する補強部材を当接させた状態で前記上部伝達部材または前記下部伝達部材を前記上梁及び下梁に固定させたため、上部伝達部材または下部伝達部材の横幅寸法が小さくなっても上部伝達部材または下部伝達部材の両側が柱の側面に当接して上梁及び下梁から浮き上がることを防止できる。
【００４４】
また、請求項３記載の発明によれば、前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の側面を当接させ、前記柱の他側の側面に補強部材を当接させた状態で前記上部伝達部材及び前記下部伝達部材と前記補強部材との間を連結する連結部材を介して固定したため、または下部伝達部材の横幅寸法が小さくなっても上部伝達部材または下部伝達部材の両側が柱の側面に当接して上梁及び下梁から浮き上がることを防止できる。
【図面の簡単な説明】
【図１】本発明になる制振装置の一実施例を示す正面図である。
【図２】図１中Ｂ部拡大図であり、（Ａ）はＢ部正面図、（Ｂ）はＡ−Ａ線に沿う縦断面図である。
【図３】本発明になる制振装置の変形例１を示す拡大図であり、（Ａ）は正面拡大図、（Ｂ）は側断面図である。
【図４】補強金具を拡大して示す図であり、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は平面図である。
【図５】本発明になる制振装置の変形例２を示す拡大図であり、（Ａ）は正面拡大図、（Ｂ）は側断面図である。
【図６】補強金具を拡大して示す図であり、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は平面図である。
【図７】従来の制振装置の一例を示す正面図である。
【符号の説明】
１０制振装置
１２下梁
１４上梁
１６柱（請求項に記載の柱）
１７スタッド（請求項に記載の柱）
２０油圧ダンパ
２２下部伝達部材
２４上部伝達部材
２６，２８ダンパ支持部材
３０，３２補強板
３４，３６連結板
５０，６０補強金具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration damping device, and more particularly to a vibration damping device configured such that a damper that absorbs vibration energy of a structure is attached in a wall.
[0002]
[Prior art]
As means for improving the earthquake resistance of structures such as buildings and houses, vibration control devices are being developed in which a hydraulic damper is interposed between an upper transmission member and a lower transmission member.
[0003]
In this vibration damping device, a hydraulic damper is attached between an upper transmission member fixed to a beam and a lower transmission member fixed to a foundation such as a floor, and a cylinder end and a piston rod end of the hydraulic damper are connected to each other. It is connected to an upper transmission member or a lower transmission member that transmits horizontal vibration.
[0004]
FIG. 7 is a front view showing an example of a conventional vibration damping device.
[0005]
As shown in FIG. 7, the conventional vibration damping device is provided with a hydraulic damper 5 in a planar space 4 formed between the lower beam 1, the upper beam 2, and the column 3. The hydraulic damper 5 is disposed between the upper transmission member 6 fixed to the upper beam 2 and the lower transmission member 7 fixed to the lower beam 1, and the end of the piston rod 5 a is the lower end of the upper transmission member 6. The end of the cylinder 5b is connected to the bracket 7a fixed to the upper end of the lower transmission member 7. Therefore, when the vibration of the structure is propagated to the upper transmission member 6 and the lower transmission member 7, a horizontal relative displacement occurs between the upper transmission member 6 and the lower transmission member 7. Thereby, in the hydraulic damper 5, the piston rod 5a slides with respect to the cylinder 5b to generate a damping force.
[0006]
Further, when the house construction method is 2 × 4, a stud 8 for reinforcing the space between the pillars 3 is provided so as to connect the lower beam 1 and the upper beam 2. Therefore, the upper transmission member 6 and the lower transmission member 7 are formed in a dimension shape (width dimension = b) that is accommodated between the pillars 3 and the studs 8 that are provided at approximately half the interval of a general house. The hydraulic damper 5 is also provided so as to be accommodated between the column 3 and the stud 8.
[0007]
In order to make the upper transmission member 6 and the lower transmission member 7 half the width of a general house by this construction method, the upper transmission member 6 and the lower transmission member 7 are elongated in the vertical direction. The ends of the upper transmission member 6 and the lower transmission member 7 are fixed by driving a fastening member such as a nail into an L-shaped bracket 9.
[0008]
[Problems to be solved by the invention]
In the vibration damping device applied to the construction method as described above, the horizontal width of the upper transmission member 6 and the lower transmission member 7 is reduced to about half that of a general house, so that when horizontal vibration is propagated The upper transmission member 6 and the lower transmission member 7 are easy to tilt, and at this time, a force (leverage principle) that pulls out the fastening member driven into the bracket 9 acts to act on the upper transmission member 6 and the lower transmission member. 7 has a problem that the joint portion 7 is lifted from the upper beam 2 and the lower beam 1.
[0009]
Accordingly, an object of the present invention is to provide a vibration damping device that solves the above-described problems.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following features.
[0011]
In the first aspect of the invention, the left and right widths of the free ends of the upper transmission member and the lower transmission member are formed to be narrower than the interval between the two columns, and the upper transmission member or The width of the fixed end of at least one transmission member of the fixed end of the lower transmission member is substantially the same as the distance between the two columns, and the left and right side surfaces of the fixed end are the side surfaces of the two columns. The fixed ends of the upper transmission member and the lower transmission member are fixed to the upper beam and the lower beam in the contacted state, and the upper transmission member or the lower transmission member even if the lateral width of the upper transmission member or the lower transmission member is reduced. The left and right side surfaces of the fixed end can be prevented from coming into contact with the side surface of the column and the fixed end can be prevented from floating from the upper beam and the lower beam.
[0012]
The invention according to claim 2 is such that a side surface of the upper transmission member or the lower transmission member is brought into contact with a side surface on one side of the column, and the upper transmission member or the lower transmission on the other side surface of the column. The upper transmission member or the lower transmission member is fixed to the upper beam and the lower beam in a state in which the reinforcing member holding the member is in contact, and the lateral width of the upper transmission member or the lower transmission member is reduced. Even in this case, it is possible to prevent both the upper transmission member and the lower transmission member from coming into contact with the side surface of the column and floating from the upper beam and the lower beam.
[0013]
The invention according to claim 3 is a state in which a side surface of the upper transmission member or the lower transmission member is brought into contact with a side surface on one side of the column and a reinforcing member is brought into contact with a side surface on the other side of the column. The upper transmission member or the lower transmission member and the reinforcing member are fixed to each other through a connecting member, and the upper transmission member or the lower transmission member is reduced even if the lateral width of the upper transmission member or the lower transmission member is reduced. It is possible to prevent both sides of the lower transmission member from coming into contact with the side surface of the column and floating from the upper beam and the lower beam.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0015]
FIG. 1 is a front view showing an embodiment of a vibration damping device according to the present invention. 2 is an enlarged view of portion B in FIG. 1. FIG. 2A is a front view of portion B, and FIG. 2B is a longitudinal sectional view taken along line AA.
[0016]
As shown in FIG. 1 and FIG. 2, the vibration damping device 10 is horizontally mounted to support the lower beam 12 (foundation) horizontally supported to be supported by the first floor and the second floor. The upper beam 14, a column 16 (a column described in claims) erected between the lower beam 12 and the upper beam 14, and the column 16 extends in parallel with the lower beam 12 and the upper beam 14. A hydraulic damper 20 is attached to a rectangular wall-shaped space 18 formed by a reinforcing stud 17 (a column described in claims). The vibration damping device 10 is used in a house constructed by a 2 × 4 construction method, and the interval between the column 16 and the stud 17 is set to about ½ of the interval between the columns 16.
[0017]
In the wall surface space 18, in addition to the hydraulic damper 20, a lower transmission member 22 fixed to the lower beam 12 by driving a fastening member 21a such as a nail into a bracket 21 formed in an L shape, and an L shape. An upper transmission member 24 that is fixed to the upper beam 14 by driving a fastening member 23a such as a nail into the bracket 23 formed on the upper beam 14 is provided. The lower transmission member 22 and the upper transmission member 24 are formed in the same trapezoidal shape, and fixed ends 22 a and 24 a fixed to the lower beam 12 and the upper beam 14 are fitted between the column 16 and the stud 17. The free ends 22b and 24b are narrowly formed. The hydraulic damper 20 is attached so as to absorb the relative displacement between the free end 22b of the lower transmission member 22 and the free end 24b of the upper transmission member 24.
[0018]
Further, a damper support member 26 is attached to the upper end side surface of the lower transmission member 22, and a damper support member 28 is attached to the lower end side surface of the upper transmission member 24. Between the damper support member 26 of the lower transmission member 22 and the damper support member 28 of the upper transmission member 24, a hydraulic damper 20 that absorbs vibration energy in the horizontal direction and attenuates the vibration is connected.
[0019]
The hydraulic damper 20 has a cylinder 20a and a piston rod 20b, and the end of the piston rod 20b is coupled to a bracket 28a of a damper support member 28 fixed to the free end 24b of the upper transmission member 24, and the end of the cylinder 20a. The portion is coupled to a bracket 26 a of a damper support member 26 fixed to the free end 22 b of the lower transmission member 22. Therefore, when the vibration of the structure is propagated to the upper transmission member 24 and the lower transmission member 22, the hydraulic damper 20 causes the piston rod 20b to slide relative to the cylinder 20a to generate a damping force. Accordingly, the hydraulic damper 20 is attached between the lower transmission portion 22 and the upper transmission member 24 so as to attenuate the vibration in the C direction parallel to the plane of the wall surface space 18.
[0020]
In the upper transmission member 24, the lateral width of the fixed end 24 a that abuts on the upper beam 14 is formed to have substantially the same dimension as the interval between the column 16 and the stud 17. Therefore, the upper transmission member 24 is attached in a state where the left and right side surfaces 24 c and 24 d are in contact with the side surface of the column 16 and the side surface of the stud 17 without a gap. Therefore, the upper transmission member 24 is positioned at the fixed end 24 a that contacts the upper beam 14 by the upper beam 14, and the left and right side surfaces 24 c and 24 d of the fixed end 24 a are positioned by the side surface of the column 16 and the side surface of the stud 17. It is held in a state free from rattling in three directions.
[0021]
Furthermore, the upper transmission member 24 has inclined surfaces 24e and 24f at the upper portions of the left and right side surfaces 24c and 24d, and is separated from the side surfaces of the column 16 and the stud 17. Therefore, the free end 24b to which the piston rod 20b of the hydraulic damper 20 is connected is provided so as to be displaceable in the left-right direction (C direction).
[0022]
In the lower transmission member 22, the lateral width of the fixed end 22 a that is in contact with the lower beam 12 is formed to be approximately the same as the distance between the column 16 and the stud 17. Therefore, the lower transmission member 22 is attached in a state where the left and right side surfaces 22 c and 22 d are in contact with the side surface of the column 16 and the side surface of the stud 17 without a gap. Therefore, the lower transmission member 22 has its fixed end 22 a abutting on the lower beam 12 restricted by the lower beam 12, and the left and right side surfaces 22 c and 22 d of the fixed end 22 a are restricted by the side surfaces of the columns 16 and the studs 17. It is held in a state free from rattling in three directions.
[0023]
Further, the lower transmission member 22 has inclined surfaces 22e and 22f at the upper portions of the left and right side surfaces 22c and 22d, and is separated from the side surfaces of the column 16 and the stud 17. Therefore, the free end 22b to which the cylinder 20a of the hydraulic damper 20 is coupled is provided so as to be displaceable in the left-right direction (C direction), and when the vibration is input, the hydraulic damper 20 generates a damping force.
[0024]
Accordingly, in the vibration damping device 10, since the fixing portions 22a and 24a of the lower transmission member 22 and the upper transmission member 24 are firmly fixed, the lateral width dimensions of the lower transmission member 22 and the upper transmission member 24 are approximately 1 / normal. Even when the vibration is reduced to 2, it is possible to prevent the beam from rising from the lower beam 12 and the upper beam 14 when vibration in the left-right direction (C direction) is input.
[0025]
Reinforcing plates 30 and 32 fixed in contact with the lower beam 12 and the upper beam 14 are provided in the wall surface spaces 42 and 44 arranged on both sides of the wall surface space 18 provided with the hydraulic damper 20. Is fitted. Further, the reinforcing plates 30 and 32 are formed to have the same width as the distance between the column 16 and the stud 17. Therefore, the reinforcing plates 30 and 32 are fixed by driving fastening members 21a and 23a such as nails into brackets 21 and 23 formed in an L shape with both side surfaces in contact with the side surfaces of the columns 16 and the studs 17. The Therefore, also in the wall-like spaces 42 and 44 where the hydraulic damper 20 is not provided, the strength of the fixed ends of the columns 16 and studs 17 is increased by the reinforcing plates 30 and 32 fitted between the columns 16 and the studs 17. It has been.
[0026]
Further, between the reinforcing plates 30 and 32 and the lower transmission member 22 and the upper transmission member 24, connection plates 34 and 36 made of a metal plate are fixed so as to be horizontally mounted. Since the reinforcing plates 30 and 32 are thinner than the pillars 16 and the studs 17, the connecting plates 34 and 36 are driven with fastening members 34 a and 36 a such as nails in a state in which the cutting woods 38 and 40 as spacers are interposed. Then, the reinforcing plates 30 and 32 are fastened.
[0027]
As described above, the reinforcing plates 30 and 32, the lower transmission member 22 and the upper transmission member 24 are fitted between the column 16 and the stud 17 without a gap, and are connected and fixed by the connection plates 34 and 36. Lifting from the lower beam 12 and the upper beam 14 is reliably prevented.
[0028]
3A and 3B are enlarged views showing a first modification of the vibration damping device according to the present invention, in which FIG. 3A is a front enlarged view and FIG. 3B is a side sectional view. 4 is an enlarged view of the reinforcing metal fitting, in which (A) is a front view, (B) is a side view, and (C) is a plan view. In FIG. 3, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.
[0029]
As shown in FIGS. 3 (A), 3 (B) and FIGS. 4 (A) to (C), in the first modified example, the reinforcing bracket made of a metal plate instead of the reinforcing plates 30, 32 and the connecting plates 34, 36. 50 is attached.
[0030]
The reinforcing metal fitting 50 includes a base 50a that contacts the lower beam 12 or the upper beam 14, trapezoidal support plates 50b and 50c that stand on the upper surface of the base 50a, and fastening bases provided on the base 50a and the support plates 50b and 50c. Small holes 50d and 50e are provided.
[0031]
The fastening small holes 50e include a first row 50f that faces the front surface and the rear surface of the column 16 or the stud 17, and a second row 50g that faces the fixing portion 22a of the lower transmission member 22 or the fixing portion 24a of the upper transmission member 24. It is divided and provided.
[0032]
For example, as shown in FIGS. 3A and 3B, the reinforcing metal fitting 50 has a base 50 a in contact with the upper surface of the lower beam 12, and the first row 50 f of the fastening small holes 50 e is the front surface of the stud 17. And a fastening member 51 such as a nail in the fastening small holes 50d and 50e in a state where the second row 50g of the fastening small holes 50e is aligned so as to face the fixing portion 22a of the lower transmission portion 22. To fix the base 50 a to the lower beam 12 and fix the support plates 50 b and 50 c to the stud 17 and the lower transmission portion 22.
[0033]
Thus, since the stud 17 and the lower transmission part 22 can be fixed to the lower beam 12 by the reinforcing metal fitting 50, the number of parts can be reduced as compared with the case where the reinforcing plates 30, 32 and the connecting plates 34, 36 are used. , Manufacturing costs can be kept low.
[0034]
FIG. 5 is an enlarged view showing a second modification of the vibration damping device according to the present invention, (A) is an enlarged front view, and (B) is a side sectional view. 6 is an enlarged view of the reinforcing metal fitting, (A) is a front view, (B) is a side view, and (C) is a plan view. In FIG. 5, the same parts as those in FIG. 1 and FIG.
[0035]
As shown in FIGS. 5 (A), 5 (B) and FIGS. 6 (A) to 6 (C), in the second modification, the reinforcing bracket made of a metal plate instead of the reinforcing plates 30, 32 and the connecting plates 34, 36. 60 is attached.
[0036]
The reinforcing bracket 60 includes a base 50a that contacts the lower beam 12 or the upper beam 14, a mounting plate 60b that stands above the end of the base 50a, and a triangle that is provided so as to connect the base 60a and the mounting plate 60b. A support plate 60c having a shape and small fastening holes 60d and 60e provided in the base 50a and the mounting plate 60b are provided.
[0037]
For example, as shown in FIGS. 5A and 5B, the reinforcing metal fitting 60 has the base 60 a in contact with the upper surface of the lower beam 12 and the mounting plate 60 b facing the side surface of the stud 17. A fastening member 61 such as a nail is driven into the fastening small holes 60 d and 60 e to fix the base 60 a to the lower beam 12 and fix the mounting plate 60 b to the stud 17. The fastening member 61 driven into the mounting plate 60 b penetrates the stud 17 and bites into the side surface 22 b of the lower transmission member 22. Therefore, the side surface 22 b of the lower transmission member 22 is fastened to the stud 17.
[0038]
As described above, the stud 17 and the lower transmission portion 22 can be fixed to the lower beam 12 by the reinforcing metal fitting 60, so that the number of parts can be reduced as compared with the case where the reinforcing plates 30, 32 and the connecting plates 34, 36 are used. , Manufacturing costs can be kept low.
[0039]
Moreover, in the said embodiment, although the structure which arrange | positions the one hydraulic damper 20 was mentioned as an example, it is needless to say that not only this but a structure which provides multiple hydraulic dampers may be sufficient, for example.
[0040]
In the above-described embodiment, an example in which the connection plates 34 and 36 are used as the connection members has been shown. However, the present invention is not limited to this. For example, the connection plates 34 and 36 shown in FIG. An inner wall panel or an outer wall panel may be used as a connecting member by driving a screw or a nail into the position.
[0041]
Further, the structure of the present invention may be used for one transmission member of the upper transmission member or the lower transmission member, and only one of the left and right sides of the upper transmission member or the lower transmission member is in contact with the column, and the other side is You may fix by another means, without contacting. As another means, the reinforcing metal fitting of FIG. 4 can be directly attached to the upper transmission member or the lower transmission member.
[0042]
【The invention's effect】
As described above, according to the first aspect of the present invention, the width of the free ends of the upper transmission member and the lower transmission member is formed to be narrower than the interval between the two columns. The lateral width of the fixed end of at least one transmission member of the upper transmission member or the lower transmission member is substantially the same as the interval between the two columns, and the right and left side surfaces of the fixed end are set to 2 of the fixed end. Since the fixed end of the upper transmission member or the lower transmission member is fixed to the upper beam and the lower beam in contact with the side surface of the book column, the upper transmission is transmitted even if the lateral width of the upper transmission member or the lower transmission member is reduced. It is possible to prevent the fixed end of the member or the lower transmission member from coming into contact with the side surface of the column and the fixed end from being lifted from the upper beam and the lower beam.
[0043]
According to a second aspect of the present invention, a side surface of the upper transmission member or the lower transmission member is brought into contact with a side surface of one side of the column, and the upper transmission member or the side surface of the other side of the column is contacted. Since the upper transmission member or the lower transmission member is fixed to the upper beam and the lower beam in a state in which the reinforcing member holding the lower transmission member is in contact, the lateral width of the upper transmission member or the lower transmission member is reduced. In addition, it is possible to prevent the both sides of the upper transmission member or the lower transmission member from coming into contact with the side surface of the column and rising from the upper beam and the lower beam.
[0044]
According to a third aspect of the present invention, the side surface of the upper transmission member or the lower transmission member is brought into contact with one side surface of the column, and the reinforcing member is brought into contact with the other side surface of the column. Since the upper transmission member and the lower transmission member and the reinforcing member are fixed to each other in a state where the upper transmission member or the lower transmission member is fixed, or even if the lateral width of the lower transmission member is reduced, the upper transmission member or the lower transmission member It is possible to prevent both sides from coming into contact with the side surface of the column and floating from the upper beam and the lower beam.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a vibration damping device according to the present invention.
2 is an enlarged view of a portion B in FIG. 1. FIG. 2A is a front view of the portion B, and FIG. 2B is a longitudinal sectional view taken along line AA.
3A and 3B are enlarged views showing a first modification of the vibration damping device according to the present invention, in which FIG. 3A is an enlarged front view and FIG.
4A and 4B are enlarged views of a reinforcing metal fitting, in which FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a plan view.
5A and 5B are enlarged views showing a second modification of the vibration damping device according to the present invention, in which FIG. 5A is a front enlarged view and FIG. 5B is a side sectional view.
6A and 6B are enlarged views of a reinforcing metal fitting, where FIG. 6A is a front view, FIG. 6B is a side view, and FIG. 6C is a plan view.
FIG. 7 is a front view showing an example of a conventional vibration damping device.
[Explanation of symbols]
10 Damping device 12 Lower beam 14 Upper beam 16 Column (column according to claim)
17 Stud (pillar according to claim)
20 Hydraulic damper 22 Lower transmission member 24 Upper transmission member 26, 28 Damper support members 30, 32 Reinforcement plates 34, 36 Connection plates 50, 60 Reinforcement brackets

Claims

構造物の２本の柱、上梁、下梁から形成される垂直な壁面状空間に設けられ、左右両側に前記２本の柱と平行に延在形成された側面と前記上梁に固定される固定端と前記壁面状空間内に延在する自由端とを有し、前記上梁からの該壁面状空間と平行な水平方向の振動を伝える上部伝達部材と、
前記壁面状空間に設けられ、左右両側に前記２本の柱と平行に延在形成された側面と前記下梁に固定される固定端と前記壁面状空間内に延在する自由端とを有し、前記下梁からの該壁面状空間と平行な水平方向の振動を伝える下部伝達部材と、
前記上部伝達部材の前記自由端と前記下部伝達部材の前記自由端との間に設けられ、前記自由端間の相対変位による水平方向の振動を吸収する油圧ダンパと、
を有する制振装置において、
前記上部伝達部材及び前記下部伝達部材の前記自由端の左右方向の幅が前記２本の柱の間隔よりも幅狭となるように形成し、
前記上部伝達部材または前記下部伝達部材の前記固定端の少なくとも一方の伝達部材の前記固定端の横幅が前記２本の柱の間隔と略同一寸法であり、且つ当該固定端の左右側面を前記２本の柱の側面に当接させた状態で前記上部伝達部材及び前記下部伝達部材の前記固定端を前記上梁及び下梁に固定させたことを特徴とする制振装置。It is provided in a vertical wall-like space formed by two pillars of the structure, the upper beam and the lower beam, and is fixed to the upper beam and the side surface extending in parallel with the two pillars on the left and right sides. An upper transmission member for transmitting a horizontal vibration parallel to the wall-like space from the upper beam;
A side surface provided in the wall-like space and extending in parallel with the two pillars on both the left and right sides, a fixed end fixed to the lower beam, and a free end extending into the wall-like space. A lower transmission member for transmitting a horizontal vibration parallel to the wall surface space from the lower beam;
A hydraulic damper provided between the free end of the upper transmission member and the free end of the lower transmission member and absorbing horizontal vibration due to relative displacement between the free ends;
In a vibration damping device having
The left and right widths of the free ends of the upper transmission member and the lower transmission member are formed to be narrower than the interval between the two columns,
The lateral width of the fixed end of at least one of the fixed ends of the upper transmission member or the lower transmission member is substantially the same as the interval between the two columns, and the left and right side surfaces of the fixed end are A vibration damping device, wherein the fixed ends of the upper transmission member and the lower transmission member are fixed to the upper beam and the lower beam in a state of being in contact with a side surface of a book column.

前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の前記固定端の側面を当接させ、前記柱の他側の側面に前記上部伝達部材または前記下部伝達部材を保持する補強部材を当接させた状態で前記上部伝達部材または前記下部伝達部材を前記上梁及び下梁に固定させたことを特徴とする請求項１記載の制振装置。 A reinforcing member that abuts the side surface of the fixed end of the upper transmission member or the lower transmission member on one side surface of the column and holds the upper transmission member or the lower transmission member on the other side surface of the column. The vibration damping device according to claim 1, wherein the upper transmission member or the lower transmission member is fixed to the upper beam and the lower beam in a state in which the upper transmission member or the lower beam is in contact with each other.

前記柱の一側の側面に前記上部伝達部材または前記下部伝達部材の前記固定端の側面を当接させ、前記柱の他側の側面に補強部材を当接させた状態で前記上部伝達部材または前記下部伝達部材と前記補強部材との間を連結する連結部材を介して固定したことを特徴とする請求項２記載の制振装置。 The upper transmission member or the upper transmission member or the lower transmission member is in contact with the side surface of the fixed end of the upper transmission member or the lower transmission member and the reinforcing member is in contact with the other side surface of the column. The vibration damping device according to claim 2, wherein the vibration damping device is fixed via a connecting member that connects the lower transmission member and the reinforcing member.