JP6895233B2

JP6895233B2 - Vibration control damper and vibration control frame structure

Info

Publication number: JP6895233B2
Application number: JP2016169689A
Authority: JP
Inventors: 高田　友和; 友和高田; 薫安井; 野村　武史; 武史野村
Original assignee: Sumitomo Riko Co Ltd
Current assignee: Sumitomo Riko Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2021-06-30
Anticipated expiration: 2036-08-31
Also published as: JP2018035581A

Description

本発明は、枠組壁工法のフレーム内に設けられる制震ダンパーと、当該制震ダンパーを組み込んだ枠組壁工法の制震フレーム構造とに関する。 The present invention relates to a seismic control damper provided in a frame of the frame wall construction method and a seismic control frame structure of the frame wall construction method incorporating the seismic control damper.

木造建築物においても、例えば特許文献１に開示されるように、外管と内管との重合部に粘弾性体を介在させてなるダンパーと、そのダンパーの端部へ延長状に接合される延長木材とからなる制震ダンパーを、フレーム内へブレース状に架設して加振時の振動減衰を図る構造が知られている。 Also in a wooden building, for example, as disclosed in Patent Document 1, a damper formed by interposing a viscoelastic body in a superposed portion of an outer pipe and an inner pipe is joined in an extension shape to an end portion of the damper. A structure is known in which a vibration control damper made of extended wood is erected in a brace shape in a frame to reduce vibration during vibration.

特許第５２４３８１６号公報Japanese Patent No. 5243816

このような制震ダンパーを２×４（ツーバイフォー）等の製材を用いた枠組壁工法のフレーム内に設置する場合、フレームの厚み内にダンパーと延長木材とが納まる寸法設定とする必要がある。しかし、延長木材もダンパーと同様に厚みを薄くすると剛性が低下し、加振時に曲げ変形が生じて変位が効率よく入力されなくなるおそれがある。
一方、ダンパーへ延長木材を接合する際、直線状となるように真っ直ぐ接合するのに時間が掛かり、施工性が悪くなるという課題もあった。 When such a seismic damping damper is installed in a frame of a frame wall construction method using lumber such as 2 × 4 (two-by-four), it is necessary to set the dimensions so that the damper and the extended timber fit within the thickness of the frame. However, as with the damper, if the thickness of the extended wood is reduced, the rigidity is lowered, and bending deformation occurs at the time of vibration, so that the displacement may not be input efficiently.
On the other hand, when joining the extension wood to the damper, there is also a problem that it takes time to join the extended wood straight so as to be straight, and the workability deteriorates.

そこで、本発明は、厚みの薄いダンパーが枠組壁工法のフレーム内に設置される場合でも、延長木材の剛性を確保して加振時の変位を効率よく入力可能とする一方、ダンパーと延長木材との正確な直線接合も容易として施工性も良好とすることができる制震ダンパー及び制震フレーム構造を提供することを目的としたものである。 Therefore, according to the present invention, even when a thin damper is installed in the frame of the frame wall construction method, the rigidity of the extended timber is ensured so that the displacement at the time of vibration can be efficiently input, while the damper and the extended timber can be input efficiently. It is an object of the present invention to provide a seismic control damper and a seismic control frame structure capable of facilitating accurate linear joining with and having good workability.

上記目的を達成するために、請求項１に記載の発明は、鉛直方向の一対の縦枠と、縦枠の間に位置する鉛直方向の中枠とを含んで枠組壁工法の木造建築物に形成されるフレーム内へ、中枠にフレーム面との直交方向へ所定深さで形成された切欠部を貫通してブレース状に架設され、直線状のダンパーと、ダンパーへ延長状に接合される直線状の延長木材とからなる制震ダンパーであって、
ダンパーは、ダンパー本体部と、その端部へ設けられる延長木材との連結部とを備え、少なくともダンパー本体部の当該直交方向の厚みが、切欠部の深さ以下に設定されている一方、
延長木材は、連結部及びフレームと接合される両端の接合部と両接合部間の中間部とを備え、少なくとも中間部における当該直交方向の厚みがダンパー本体部の当該直交方向の厚みよりも大きく、且つ当該直交方向でのフレームの厚み以下となるように設定されて、ダンパー本体部よりも中間部が当該直交方向の何れか一方側へはみ出す状態で連結部に接合されていることを特徴とする。
請求項２に記載の発明は、請求項１の構成において、延長木材における連結部側の接合部で中間部のはみ出し側の面には、当該直交方向の厚みを中間部の厚みよりも小さくする切欠きが形成されていることを特徴とする。
請求項３に記載の発明は、請求項２の構成において、切欠きは、はみ出し側の面の片側の側縁を除いて部分的に形成されて、外形がＬ字状であることを特徴とする。
請求項４に記載の発明は、請求項３の構成において、ダンパーは、両端に連結部をそれぞれ備え、延長木材は、各連結部に、Ｌ字状の切欠きがダンパーを中心とした点対称配置となるように一対接合されていることを特徴とする。
請求項５に記載の発明は、請求項２乃至４の何れかの構成において、延長木材におけるフレーム側の接合部で切欠き形成側の面には、当該直交方向の厚みを中間部の厚みよりも小さくする第２の切欠きが形成されて、第２の切欠きに、フレームへ接合するためのブラケット金具が取り付け可能であることを特徴とする。
請求項６に記載の発明は、請求項１の構成において、延長木材の当該直交方向の厚みは、両端の接合部を含む全長に亘ってダンパー本体部の当該直交方向の厚みよりも大きく設定されて、ダンパーの連結部は、延長木材の厚みに合わせて延長木材のはみ出し側へ拡開形成されていることを特徴とする。
上記目的を達成するために、請求項７に記載の発明は、鉛直方向の一対の縦枠と、縦枠の間に位置する鉛直方向の中枠とを含んで枠組壁工法の木造建築物に形成されるフレーム内に、直線状のダンパーと、ダンパーへ延長状に接合される延長木材とからなる制震ダンパーをブレース状に架設してなる制震フレーム構造であって、
中枠は、フレーム面との直交方向へ所定深さで形成されてダンパーが貫通する切欠部を有し、
制震ダンパーは、請求項１乃至６の何れかに記載の制震ダンパーを、延長木材の中間部のはみ出し側をフレームの内側へ向けて架設したものであることを特徴とする。
請求項８に記載の発明は、請求項７の構成において、中枠は、２本以上の製材を組み合わせてなることを特徴とする。
請求項９に記載の発明は、請求項７の構成において、中枠は、水平方向に所定間隔をおいた２本以上の製材であることを特徴とする。
In order to achieve the above object, the invention according to claim 1 includes a pair of vertical frames in the vertical direction and a middle frame in the vertical direction located between the vertical frames in a wooden building of a frame wall construction method. In the frame to be formed, the inner frame is erected in a brace shape through a notch formed at a predetermined depth in the direction orthogonal to the frame surface, and is joined to the linear damper in an extension shape. A seismic damper made of straight extension wood,
The damper includes a damper main body and a connecting portion with an extension wood provided at the end thereof, and at least the thickness of the damper main body in the orthogonal direction is set to be equal to or less than the depth of the notch.
The extension wood includes a connecting portion, a joint portion at both ends to be joined to the frame, and an intermediate portion between both joint portions, and the thickness in the orthogonal direction at least in the intermediate portion is larger than the thickness in the orthogonal direction of the damper main body portion. In addition, the thickness of the frame is set to be less than or equal to the thickness of the frame in the orthogonal direction, and the intermediate portion from the damper main body portion is joined to the connecting portion in a state of protruding to either one side in the orthogonal direction. To do.
According to the second aspect of the present invention, in the configuration of the first aspect, the thickness of the joint portion on the connecting portion side of the extended wood and the protruding side surface of the intermediate portion in the orthogonal direction is made smaller than the thickness of the intermediate portion. It is characterized in that a notch is formed.
The invention according to claim 3 is characterized in that, in the configuration of claim 2, the notch is partially formed except for one side edge of the protruding side surface, and the outer shape is L-shaped. To do.
According to the fourth aspect of the present invention, in the configuration of the third aspect, the damper is provided with connecting portions at both ends, and the extended wood is point-symmetrical with an L-shaped notch centered on the damper at each connecting portion. It is characterized in that it is pair-joined so as to be arranged.
In the invention according to claim 5, in any of the configurations of claims 2 to 4, the thickness of the joint portion on the frame side of the extended wood and the surface on the notch forming side is set to the thickness in the orthogonal direction from the thickness of the intermediate portion. A second notch is formed to make the size smaller, and a bracket metal fitting for joining to the frame can be attached to the second notch.
According to the sixth aspect of the present invention, in the configuration of the first aspect, the thickness of the extended wood in the orthogonal direction is set to be larger than the thickness of the damper main body in the orthogonal direction over the entire length including the joints at both ends. Therefore, the connecting portion of the damper is characterized in that it is formed to expand toward the protruding side of the extended timber according to the thickness of the extended timber.
In order to achieve the above object, the invention according to claim 7 includes a pair of vertical frames in the vertical direction and a middle frame in the vertical direction located between the vertical frames in a wooden building of a framework wall construction method. It is a seismic control frame structure in which a seismic control damper composed of a linear damper and an extension wood that is extended to the damper is erected in a brace shape in the frame to be formed.
The middle frame has a notch formed at a predetermined depth in the direction orthogonal to the frame surface and through which the damper penetrates.
The seismic damping damper is characterized in that the seismic damping damper according to any one of claims 1 to 6 is erected with the protruding side of the intermediate portion of the extended timber facing the inside of the frame.
The invention according to claim 8 is characterized in that, in the configuration of claim 7, the middle frame is a combination of two or more sawn timbers.
The invention according to claim 9 is characterized in that, in the configuration of claim 7, the middle frame is made of two or more sawn timbers at predetermined intervals in the horizontal direction.

請求項１及び７に記載の発明によれば、厚みの薄いダンパーが枠組壁工法のフレーム内に設置される場合でも、延長木材の剛性を確保して加振時の変位を効率よく入力させることができる。
請求項２に記載の発明によれば、上記効果に加えて、延長木材における連結部側の接合部で中間部のはみ出し側の面に、厚みを中間部の厚みよりも小さくする切欠きを形成しているので、延長木材の中間部の厚みを大きくしても厚みの薄いダンパーを容易に接合することができる。
請求項３に記載の発明によれば、上記効果に加えて、切欠きを、はみ出し側の面の片側の側縁を除いて部分的に形成して、外形をＬ字状としたことで、連結部を切欠きに合わせるだけでダンパーに対して正確な直線状に位置決めすることができ、施工性が良好となる。また、切欠きの形状によって連結部に回転規制が働くため、ダンパーに変位が入力された際に曲げ変形が生じにくくなる。
請求項４に記載の発明によれば、上記効果に加えて、ダンパーを、両端に連結部をそれぞれ備えたものとして、延長木材を、各連結部に、Ｌ字状の切欠きがダンパーを中心とした点対称配置となるように一対接合したことで、一対の切欠きによる回転規制が有効に働いて好適な曲げ変形防止効果が得られる。
請求項５に記載の発明によれば、上記効果に加えて、延長木材におけるフレーム側の接合部で切欠き形成側の面に、厚みを中間部の厚みよりも小さくする第２の切欠きを形成して、第２の切欠きに、フレームへ接合するためのブラケット金具を取り付け可能としたことで、フレームの内側に取り付けたブラケット金具に対して制震ダンパーを外側からフレーム内に組み付けることができる。よって、現場施工は勿論、工場でも施工が可能となる。
請求項６に記載の発明によれば、上記効果に加えて、延長木材の厚みを、両端の接合部を含む全長に亘ってダンパー本体部の厚みよりも大きく設定して、ダンパーの連結部を、延長木材の厚みに合わせて延長木材のはみ出し側へ拡開形成したことで、より高い剛性が得られる。また、延長木材に切欠きを形成しないので、加工コストも抑えられる。
請求項８及び９に記載の発明によれば、上記効果に加えて、中枠を２本以上の製材で形成したことで、中枠の剛性が高まり、鉛直荷重を支えることができる。 According to the inventions of claims 1 and 7, even when a thin damper is installed in the frame of the frame wall construction method, the rigidity of the extended timber is ensured and the displacement at the time of vibration is efficiently input. Can be done.
According to the second aspect of the present invention, in addition to the above effects, a notch having a thickness smaller than the thickness of the intermediate portion is formed on the protruding side surface of the intermediate portion at the joint portion on the connecting portion side in the extended wood. Therefore, even if the thickness of the intermediate portion of the extended wood is increased, a thin damper can be easily joined.
According to the third aspect of the present invention, in addition to the above effect, the notch is partially formed except for the side edge on one side of the protruding side surface to form an L-shaped outer shape. By simply aligning the connecting portion with the notch, it can be positioned in an accurate linear shape with respect to the damper, and workability is improved. Further, since the shape of the notch regulates the rotation of the connecting portion, bending deformation is less likely to occur when a displacement is input to the damper.
According to the invention of claim 4, in addition to the above effects, the damper is provided with connecting portions at both ends, the extended wood is provided, and the L-shaped notch is centered on the damper at each connecting portion. By joining the pair so as to have a point-symmetrical arrangement, the rotation regulation by the pair of notches works effectively, and a suitable bending deformation prevention effect can be obtained.
According to the fifth aspect of the present invention, in addition to the above effect, a second notch having a thickness smaller than the thickness of the intermediate portion is provided on the surface on the notch forming side at the joint portion on the frame side in the extended wood. By forming and making it possible to attach a bracket bracket for joining to the frame in the second notch, it is possible to assemble the damping damper from the outside into the frame with respect to the bracket bracket attached to the inside of the frame. it can. Therefore, not only on-site construction but also factory construction is possible.
According to the invention of claim 6, in addition to the above effect, the thickness of the extended wood is set to be larger than the thickness of the damper main body portion over the entire length including the joint portions at both ends, and the connecting portion of the damper is set. , Higher rigidity can be obtained by expanding the extension wood to the protruding side according to the thickness of the extension wood. In addition, since no notch is formed in the extended wood, the processing cost can be suppressed.
According to the inventions of claims 8 and 9, in addition to the above effects, the inner frame is formed of two or more sawn timbers, so that the rigidity of the inner frame is increased and a vertical load can be supported.

形態１の制震ダンパーを用いた制震フレーム構造の説明図で、（Ａ）は正面、（Ｂ）は中枠部分の側面、（Ｃ）は制震ダンパー部分の側面をそれぞれ示す。In the explanatory view of the seismic control frame structure using the seismic control damper of the first form, (A) shows the front surface, (B) shows the side surface of the middle frame part, and (C) shows the side surface of the seismic control damper part. 形態１の延長木材の説明図で、（Ａ）は正面、（Ｂ）は平面をそれぞれ示す。In the explanatory view of the extended wood of the first form, (A) shows a front surface and (B) shows a plane surface. 形態２の制震ダンパーを用いた制震フレーム構造の説明図で、（Ａ）は正面、（Ｂ）は制震ダンパー部分の側面をそれぞれ示す。In the explanatory view of the seismic control frame structure using the seismic control damper of the second form, (A) shows the front surface, and (B) shows the side surface of the seismic control damper part. 形態２の延長木材の説明図で、（Ａ）は正面、（Ｂ）は平面をそれぞれ示す。In the explanatory view of the extended wood of the second form, (A) shows a front surface and (B) shows a plane surface. 形態３の制震ダンパーを用いた制震フレーム構造の説明図で、（Ａ）は正面、（Ｂ）は制震ダンパー部分の側面をそれぞれ示す。In the explanatory view of the seismic control frame structure using the seismic control damper of the third form, (A) shows the front surface, and (B) shows the side surface of the seismic control damper part. 形態３の延長木材の説明図で、（Ａ）は正面、（Ｂ）は平面をそれぞれ示す。In the explanatory view of the extended wood of the third form, (A) shows a front surface and (B) shows a plane surface. 形態４の制震ダンパーを用いた制震フレーム構造の説明図で、（Ａ）は正面、（Ｂ）は制震ダンパー部分の側面をそれぞれ示す。In the explanatory view of the seismic control frame structure using the seismic control damper of the fourth form, (A) shows the front surface, and (B) shows the side surface of the seismic control damper part. 変更例の延長木材の説明図で、（Ａ）は正面、（Ｂ）は平面をそれぞれ示す。In the explanatory view of the extended wood of the modified example, (A) shows the front surface and (B) shows the plane. 中枠を左右２本の製材とした制震フレーム構造の正面図である。It is a front view of the seismic control frame structure in which the middle frame is made of two left and right lumber. 中枠を前後２本の製材とした制震フレーム構造の説明図で、（Ａ）は正面、（Ｂ）は中枠部分の側面をそれぞれ示す。In the explanatory view of the seismic control frame structure in which the middle frame is made of two front and rear lumbers, (A) shows the front surface and (B) shows the side surface of the middle frame portion. 中枠を間隔をあけた左右２本の製材とした制震フレーム構造の正面図である。It is a front view of the seismic control frame structure in which the middle frame is made of two left and right lumbers with intervals. （Ａ）（Ｂ）は縦枠の変更例を示すフレームの一部水平断面図である。(A) and (B) are partial horizontal cross-sectional views of a frame showing an example of changing the vertical frame.

以下、本発明の実施の形態を図面に基づいて説明する。
［形態１］
図１は、枠組壁工法の木造建築物における制震フレーム構造の一例を示す説明図で、上下の端根太１，１の間には、上枠３と下枠４、左右の縦枠５，５とからなるフレーム２が組み込まれている。図１では一つのフレーム２のみ示している。６は、左右の縦枠５，５の間に設けられる中枠で、フレーム面と直交するフレーム２の厚み方向の前後には、面材（例えば構造用合板）７，７が張り付けられるが、正面側は省略している。ここでの上枠３と左右の縦枠５とは、それぞれ２本の製材（例えば２×４材）を積層してなり、剛性を確保している。下枠４と中枠６とは１本の製材が使用されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Form 1]
FIG. 1 is an explanatory view showing an example of a seismic control frame structure in a wooden building using a framed wall construction method. Between the upper and lower end joists 1 and 1, the upper frame 3, the lower frame 4, and the left and right vertical frames 5, A frame 2 composed of 5 is incorporated. In FIG. 1, only one frame 2 is shown. Reference numeral 6 denotes a middle frame provided between the left and right vertical frames 5 and 5, and face materials (for example, structural plywood) 7 and 7 are attached to the front and rear in the thickness direction of the frame 2 orthogonal to the frame surface. The front side is omitted. Here, the upper frame 3 and the left and right vertical frames 5 are each made by laminating two sawn timbers (for example, 2 × 4 lumber) to ensure rigidity. One lumber is used for the lower frame 4 and the middle frame 6.

そして、フレーム２内において、上枠３と右側の縦枠５との仕口部と、左側の縦枠５と下枠４との仕口部との間には、ダンパー１１と、その両端へ延長状に接合される一対の延長木材１２，１２とからなる制震ダンパー１０が、ブレース状に架設されている。中枠６における制震ダンパー１０の架設側には、図１（Ｂ）に示すように、ダンパー１１が貫通する領域（ハッチング部分）に切欠部８が形成されて、制震ダンパー１０とは干渉しないようになっている。ダンパー１１が貫通した中枠６には、切欠部８の開放側を閉塞する帯状の補強金具９が木ねじで固定されている。 Then, in the frame 2, between the joint portion between the upper frame 3 and the vertical frame 5 on the right side and the joint portion between the vertical frame 5 on the left side and the lower frame 4, the damper 11 and both ends thereof are connected. A vibration control damper 10 made of a pair of extended timbers 12 and 12 to be joined in an extended shape is erected in a brace shape. As shown in FIG. 1 (B), a notch 8 is formed in a region (hatched portion) through which the damper 11 penetrates on the erection side of the vibration control damper 10 in the middle frame 6, and interferes with the vibration control damper 10. It is designed not to. A band-shaped reinforcing metal fitting 9 that closes the open side of the notch 8 is fixed to the middle frame 6 through which the damper 11 penetrates with a wood screw.

まず、ダンパー１１は、横断面矩形の外管１３と、その外管１３より一回り小さい横断面矩形で、外管１３に一端側から同軸で部分的に遊挿される内管１４と、両管１３，１４の重合部分で両管１３，１４間にあって両者に接着される粘弾性体１５とから形成されている。
ここでの外管１３は、横断面短手方向に中央から二分割した一対の横断面コ字状の半割金具１６，１６の開放側を向かい合わせにして、長手方向の全長に亘って延設されたフランジ１７，１７同士をボルト及びナットで接合したもので、各半割金具１６における延長木材１２の接合側の端部には、長手辺部分のみが伸長した連結部１８，１８が延設されている。この連結部１８，１８を除いた外管１３と内管１４、粘弾性体１５がダンパー本体部で、ダンパー本体部の厚みＴは、中枠６の切欠部８の深さ以下に設定されている。 First, the damper 11 has an outer tube 13 having a rectangular cross section, an inner tube 14 having a rectangular cross section slightly smaller than the outer tube 13 and being partially loosely inserted into the outer tube 13 from one end side, and both tubes. The overlapping portion of 13 and 14 is formed from a viscoelastic body 15 which is located between both tubes 13 and 14 and is adhered to both tubes.
Here, the outer pipe 13 extends over the entire length in the longitudinal direction with the open sides of the pair of U-shaped half-split metal fittings 16 and 16 having a cross-sectional cross section divided into two from the center in the lateral direction facing each other. The provided flanges 17 and 17 are joined to each other with bolts and nuts, and connecting portions 18 and 18 having only the longitudinal side portion extended extend to the end of each half-split metal fitting 16 on the joint side of the extension wood 12. It is installed. The outer pipe 13, the inner pipe 14, and the viscoelastic body 15 excluding the connecting portions 18 and 18 are the damper main body, and the thickness T of the damper main body is set to be equal to or less than the depth of the notch 8 of the middle frame 6. There is.

延長木材１２は、図２に示すように、横断面矩形の長尺材で、ダンパー１１との接合側端部には、幅方向に小さくなる凸部１９が形成されている。この凸部１９は、内管１４の端部に差し込み嵌合可能な寸法となっている。また、凸部１９を含むダンパー１１との接合部Ｐ１の片面側には、切欠き２０が形成されている。この切欠き２０により接合部Ｐ１の厚みＴ１は、ダンパー本体部の厚みＴより小さく、外管１３の連結部１８，１８の間に嵌合する厚みとなっている。一方、フレーム２の仕口部との接合部と、接合部Ｐ１との間の中間部とを含む本体部Ｐ２の厚みＴ２は、ダンパー本体部の厚みＴより大きく設定されている。なお、延長木材１２は、ここでは構造用単板積層材が使用されているが、無垢材でも差し支えない。 As shown in FIG. 2, the extension wood 12 is a long material having a rectangular cross section, and a convex portion 19 that becomes smaller in the width direction is formed at an end portion on the joint side with the damper 11. The convex portion 19 has a size that allows it to be inserted and fitted into the end portion of the inner pipe 14. Further, a notch 20 is formed on one side of the joint portion P1 with the damper 11 including the convex portion 19. Due to the notch 20, the thickness T1 of the joint portion P1 is smaller than the thickness T of the damper main body portion, and is thick enough to fit between the connecting portions 18 and 18 of the outer pipe 13. On the other hand, the thickness T2 of the main body portion P2 including the joint portion of the frame 2 with the joint portion and the intermediate portion between the joint portion P1 is set to be larger than the thickness T of the damper main body portion. As the extension wood 12, a structural veneer laminated material is used here, but a solid wood may be used.

この延長木材１２の一方は、外管１３の連結部１８，１８の間に接合部Ｐ１を差し込み、一方の連結部１８の先端を切欠き２０の終端に当接させて位置決めした状態で、厚み方向の前後から連結部１８，１８を貫通する木ねじをねじ込む。これにより延長木材１２の一方は、外管１３へ延長状に接合される。
延長木材１２の他方は、内管１４の端部に、外管１３側の延長木材１２と同じ側に切欠き２０を向けて凸部１９を差し込んで位置決めした状態で、厚み方向の前後から内管１４と延長木材１２とに跨がる連結部としての連結板２１，２１で挟んでボルト及び木ねじで固定する。これにより延長木材１２の他方は、内管１４へ延長状に接合される。 One of the extension woods 12 has a thickness in a state where the joint portion P1 is inserted between the connecting portions 18 and 18 of the outer pipe 13 and the tip of the one connecting portion 18 is brought into contact with the end of the notch 20 for positioning. Screw the wood screws that penetrate the connecting parts 18 and 18 from the front and back in the direction. As a result, one of the extended timbers 12 is joined to the outer pipe 13 in an extended manner.
The other side of the extension wood 12 is positioned by inserting the convex portion 19 toward the end of the inner pipe 14 with the notch 20 facing the same side as the extension wood 12 on the outer pipe 13 side, and inside from the front and back in the thickness direction. It is sandwiched between connecting plates 21 and 21 as connecting portions straddling the pipe 14 and the extension wood 12, and fixed with bolts and wood screws. As a result, the other end of the extension wood 12 is joined to the inner pipe 14 in an extended manner.

こうしてダンパー１１の両端へ延長木材１２，１２を延長状に接合した制震ダンパー１０は、図１（Ｃ）に示すように、延長木材１２，１２の切欠き２０側をフレーム２の内側（厚み方向の中心側）とした向きで、正面側から仕口部に木ねじで固定されたブラケット金具２２，２２にそれぞれ延長木材１２，１２の端部を木ねじで固定する。これにより、制震ダンパー１０がフレーム２の厚み内の正面側で略半分のスペース内で架設された制震フレーム構造が得られる。この状態でダンパー本体部より厚みの大きい延長木材１２，１２の本体部Ｐ２は、ダンパー１１よりもフレーム２の内側へはみ出す格好となるため、本体部Ｐ２の厚みを大きくしてもフレーム２の厚み内に納まる。 As shown in FIG. 1C, the seismic damping damper 10 in which the extension timbers 12 and 12 are joined to both ends of the damper 11 in an extended manner has the notch 20 side of the extension timbers 12 and 12 inside the frame 2 (thickness). The ends of the extended timbers 12 and 12, respectively, are fixed with wood screws to the bracket metal fittings 22 and 22 fixed to the joints from the front side with wood screws in the direction (center side of the direction). As a result, a seismic control frame structure is obtained in which the seismic control damper 10 is erected in approximately half the space on the front side within the thickness of the frame 2. In this state, the main body P2 of the extended wood 12 and 12 having a thickness larger than that of the damper main body is shaped to protrude inside the frame 2 from the damper 11, so that the thickness of the frame 2 is increased even if the thickness of the main body P2 is increased. It fits inside.

以上の如く構成された制震ダンパー１０を架設したフレーム２において、地震等によって水平な外力が反復して加わり、フレーム２が水平方向に変形すると、制震ダンパー１０には軸方向に圧縮力と引張力とが交互に作用して、ダンパー１１の外管１３と内管１４とが相反する軸方向へ動作する。この動作によって粘弾性体１５をせん断変形させて減衰作用を生じさせることになる。
このとき、ダンパー１１の両端には、接合部Ｐ１を除いた本体部Ｐ２の厚みＴ２がダンパー本体部の厚みＴよりも大きい延長木材１２，１２が接合されているので、延長木材１２の剛性を確保できる。よって、変位が効率よく入力されて粘弾性体１５をせん断変形させることができ、効果的な減衰作用が得られる。 In the frame 2 on which the vibration control damper 10 configured as described above is erected, when a horizontal external force is repeatedly applied due to an earthquake or the like and the frame 2 is deformed in the horizontal direction, the vibration control damper 10 is subjected to an axial compressive force. The tensile force acts alternately, and the outer tube 13 and the inner tube 14 of the damper 11 operate in opposite axial directions. By this operation, the viscoelastic body 15 is sheared and deformed to generate a damping action.
At this time, the extension woods 12 and 12 having a thickness T2 of the main body P2 excluding the joint portion P1 larger than the thickness T of the damper main body are joined to both ends of the damper 11, so that the rigidity of the extension wood 12 is increased. Can be secured. Therefore, the displacement can be efficiently input and the viscoelastic body 15 can be sheared and deformed, and an effective damping action can be obtained.

このように、上記形態１の制震ダンパー１０及び制震フレーム構造によれば、ダンパー本体部の厚みＴが、中枠６の切欠部８の深さ以下に設定されている一方、延長木材１２は、本体部Ｐ２の厚みＴ２がダンパー本体部の厚みＴよりも大きく設定されて、ダンパー本体部よりも本体部Ｐ２が内側へはみ出す状態で連結部１８及び連結板２１に接合されているため、厚みの薄いダンパー１１が枠組壁工法のフレーム２内に設置される場合でも、延長木材１２の剛性を確保して加振時の変位を効率よく入力させることができる。 As described above, according to the vibration control damper 10 and the vibration control frame structure of the first embodiment, the thickness T of the damper main body is set to be equal to or less than the depth of the notch 8 of the middle frame 6, while the extension wood 12 Is because the thickness T2 of the main body P2 is set to be larger than the thickness T of the damper main body, and the main body P2 is joined to the connecting portion 18 and the connecting plate 21 in a state where the main body P2 protrudes inward from the damper main body. Even when the thin damper 11 is installed in the frame 2 of the frame wall construction method, the rigidity of the extension wood 12 can be ensured and the displacement at the time of vibration can be efficiently input.

特にここでは、延長木材１２の接合部Ｐ１で本体部Ｐ２のはみ出し側の面に、フレーム面との直交方向の厚みＴ１を本体部Ｐ２の厚みＴ２よりも小さくする切欠き２０を形成しているので、延長木材１２の本体部Ｐ２の厚みを大きくしても厚みの薄いダンパー１１を容易に接合することができる。 In particular, here, a notch 20 is formed at the joint portion P1 of the extension wood 12 on the protruding side surface of the main body portion P2 so that the thickness T1 in the direction orthogonal to the frame surface is smaller than the thickness T2 of the main body portion P2. Therefore, even if the thickness of the main body P2 of the extension wood 12 is increased, the thin damper 11 can be easily joined.

以下、制震ダンパー及び制震フレーム構造の他の形態を説明する。但し、形態１と同じ構成には同じ符号を付して重複する説明は省略する。
［形態２］
図３（Ａ）に示す制震ダンパー１０Ａは、延長木材１２の構造が異なっている以外は形態１と同じである。ここでの延長木材１２は、図４に示すように、切欠き２０ａが、接合部Ｐ１の片面全面ではなく、片側の側縁を除いて部分的に形成されて、外形がＬ字状となっている。この切欠き２０ａに、外管１３側の連結部１８や内管１４側の連結板２１を嵌合させ、切欠き２０ａの長手方向の内縁に連結部１８や連結板２１の側縁を当接させて位置決めすることができる。ダンパー本体部の厚みＴに対する切欠き２０ａ内の接合部Ｐ１の厚みＴ１と本体部Ｐ２の厚みＴ２との関係は変わらない。 Hereinafter, other forms of the vibration control damper and the vibration control frame structure will be described. However, the same components as those in the first embodiment are designated by the same reference numerals, and the duplicate description will be omitted.
[Form 2]
The vibration control damper 10A shown in FIG. 3A is the same as that of the first form except that the structure of the extension wood 12 is different. As shown in FIG. 4, the extension wood 12 here has a notch 20a formed not on the entire surface of the joint portion P1 but partially except for the side edge on one side, and has an L-shaped outer shape. ing. The connecting portion 18 on the outer pipe 13 side and the connecting plate 21 on the inner pipe 14 side are fitted into the notch 20a, and the side edges of the connecting portion 18 and the connecting plate 21 are brought into contact with the inner edge of the notch 20a in the longitudinal direction. It can be positioned. The relationship between the thickness T1 of the joint portion P1 and the thickness T2 of the main body portion P2 in the notch 20a with respect to the thickness T of the damper main body portion does not change.

この延長木材１２，１２も、形態１と同様にそれぞれ外管１３と内管１４とに延長状に接合されるが、接合した状態では、Ｌ字状の切欠き２０ａ，２０ａがダンパー１１を中心とした点対称配置となる。
こうして得られた制震ダンパー１０Ａも、形態１と同様に、延長木材１２，１２の切欠き２０ａ側をフレーム２の内側とした向きで、ブラケット金具２２，２２を介して各延長木材１２を仕口部に固定する。これにより、制震ダンパー１０Ａがフレーム２の厚み内の正面側で略半分のスペース内で架設された制震フレーム構造が得られる。 The extended timbers 12 and 12 are also joined to the outer pipe 13 and the inner pipe 14 in an extended manner as in the first form, but in the joined state, the L-shaped notches 20a and 20a are centered on the damper 11. It becomes a point-symmetrical arrangement.
In the seismic control damper 10A thus obtained, as in the first embodiment, the extension wood 12 is provided via the bracket metal fittings 22 and 22 with the notch 20a side of the extension wood 12 and 12 facing the inside of the frame 2. Fix it to the mouth. As a result, a seismic control frame structure is obtained in which the seismic control damper 10A is erected in approximately half the space on the front side within the thickness of the frame 2.

以上の如く構成された制震ダンパー１０Ａを架設したフレーム２において、地震等によって水平な外力が反復して加わり、フレーム２が水平方向に変形すると、制震ダンパー１０Ａには軸方向に圧縮力と引張力とが交互に作用して、ダンパー１１の外管１３と内管１４とが相反する軸方向へ動作する。この動作によって粘弾性体１５をせん断変形させて減衰作用を生じさせることになる。
このとき、ダンパー１１の両端には、接合部Ｐ１を除いた本体部Ｐ２の厚みＴ２がダンパー本体部の厚みＴよりも大きい延長木材１２，１２が接合されているので、延長木材１２の剛性を確保できる。よって、変位が効率よく入力されて粘弾性体１５をせん断変形させることができ、効果的な減衰作用が得られる。 In the frame 2 on which the seismic damping damper 10A configured as described above is erected, when a horizontal external force is repeatedly applied due to an earthquake or the like and the frame 2 is deformed in the horizontal direction, the seismic damping damper 10A receives a compressive force in the axial direction. The tensile force acts alternately, and the outer tube 13 and the inner tube 14 of the damper 11 operate in opposite axial directions. By this operation, the viscoelastic body 15 is sheared and deformed to generate a damping action.
At this time, the extension woods 12 and 12 having a thickness T2 of the main body P2 excluding the joint portion P1 larger than the thickness T of the damper main body are joined to both ends of the damper 11, so that the rigidity of the extension wood 12 is increased. Can be secured. Therefore, the displacement can be efficiently input and the viscoelastic body 15 can be sheared and deformed, and an effective damping action can be obtained.

このように、上記形態２の制震ダンパー１０Ａ及び制震フレーム構造においても、ダンパー本体部の厚みＴが、中枠６の切欠部８の深さ以下に設定されている一方、延長木材１２は、本体部Ｐ２の厚みＴ２がダンパー本体部の厚みＴよりも大きく設定されて、ダンパー本体部よりも本体部Ｐ２が内側へはみ出す状態で連結部１８及び連結板２１に接合されているため、厚みの薄いダンパー１１が枠組壁工法のフレーム２内に設置される場合でも、延長木材１２の剛性を確保して加振時の変位を効率よく入力させることができる。
また、延長木材１２の接合部Ｐ１で本体部Ｐ２のはみ出し側の面に、フレーム面との直交方向の厚みＴ１を本体部Ｐ２の厚みＴ２よりも小さくする切欠き２０ａを形成しているので、延長木材１２の本体部Ｐ２の厚みを大きくしても厚みの薄いダンパー１１を容易に接合することができる。 As described above, also in the vibration control damper 10A and the vibration control frame structure of the second embodiment, the thickness T of the damper main body is set to be equal to or less than the depth of the notch 8 of the middle frame 6, while the extension wood 12 is The thickness T2 of the main body P2 is set to be larger than the thickness T of the damper main body, and the main body P2 is joined to the connecting portion 18 and the connecting plate 21 in a state where the main body P2 protrudes inward from the damper main body. Even when the thin damper 11 is installed in the frame 2 of the frame wall construction method, the rigidity of the extension wood 12 can be ensured and the displacement at the time of vibration can be efficiently input.
Further, since the joint portion P1 of the extension wood 12 has a notch 20a formed on the protruding side surface of the main body portion P2 so that the thickness T1 in the direction orthogonal to the frame surface is smaller than the thickness T2 of the main body portion P2. Even if the thickness of the main body P2 of the extension wood 12 is increased, the thin damper 11 can be easily joined.

特にここでは、切欠き２０ａを、片側の側縁を除いて部分的に形成して、外形をＬ字状としているので、連結部１８や連結板２１を切欠き２０ａに合わせるだけでダンパー１１に対して正確な直線状に位置決めすることができ、施工性が良好となる。また、切欠き２０ａの形状によって連結部１８や連結板２１に回転規制が働くため、ダンパー１１に変位が入力された際に曲げ変形が生じにくくなる。
さらに、一対の延長木材１２，１２は、連結部１８や連結板２１に、Ｌ字状の切欠き２０ａがダンパー１１を中心とした点対称配置となるように接合されているので、一対の切欠き２０ａ，２０ａによる回転規制が有効に働いて好適な曲げ変形防止効果が得られる。 In particular, here, since the notch 20a is partially formed except for the side edge on one side to have an L-shaped outer shape, the damper 11 can be formed by simply aligning the connecting portion 18 and the connecting plate 21 with the notch 20a. On the other hand, it can be positioned in an accurate linear shape, and the workability is improved. Further, since the shape of the notch 20a restricts the rotation of the connecting portion 18 and the connecting plate 21, bending deformation is less likely to occur when a displacement is input to the damper 11.
Further, the pair of extended timbers 12 and 12 are joined to the connecting portion 18 and the connecting plate 21 so that the L-shaped notches 20a are arranged in a point-symmetrical manner centered on the damper 11, so that the pair of cuts are cut. The rotation regulation by the notches 20a and 20a works effectively, and a suitable bending deformation prevention effect can be obtained.

［形態３］
図５に示す制震ダンパー１０Ｂは、延長木材１２の構造が異なっている以外は形態２と同じである。接合部Ｐ１には、図６に示すように形態２と同じＬ字状の切欠き２０ａが形成されているが、ここでは本体部Ｐ２における切欠き２０ａと同じ側の片面で、仕口部との接合部Ｐ３には、切欠き２０ａと同じ深さの第２の切欠き２３が形成されている。よって、ここでは接合部Ｐ１とＰ３との間の中間部Ｐ４のみが、ダンパー本体部の厚みＴよりも大きい厚みＴ２となっている。この第２の切欠き２３は、仕口部へ接合するためのブラケット金具２２を固定するためのものである。 [Form 3]
The vibration control damper 10B shown in FIG. 5 is the same as that of the second form except that the structure of the extension wood 12 is different. As shown in FIG. 6, the joint portion P1 is formed with the same L-shaped notch 20a as in the form 2, but here, one side of the main body portion P2 on the same side as the notch 20a is formed with the joint portion. A second notch 23 having the same depth as the notch 20a is formed in the joint portion P3 of the above. Therefore, here, only the intermediate portion P4 between the joint portions P1 and P3 has a thickness T2 larger than the thickness T of the damper main body portion. The second notch 23 is for fixing the bracket metal fitting 22 for joining to the joint portion.

よって、この制震ダンパー１０Ｂも、形態２と同様に、延長木材１２，１２の切欠き２０ａ側をフレーム２の内側とした向きで取り付けられるが、ここでは図５（Ｂ）に示すように、ブラケット金具２２，２２を延長木材１２，１２の第２の切欠き２３にフレーム２の内側（背面側）からあてがって位置決めし、仕口部に木ねじで固定する。これにより、制震ダンパー１０Ｂがフレーム２の厚み内の正面側で略半分のスペース内で架設された制震フレーム構造が得られる。 Therefore, this seismic damping damper 10B is also attached with the notch 20a side of the extended timbers 12 and 12 facing the inside of the frame 2 as in the second form, but here, as shown in FIG. 5 (B), it is attached. The bracket metal fittings 22 and 22 are placed on the second notch 23 of the extension wood 12 and 12 from the inside (rear side) of the frame 2 for positioning, and are fixed to the joint with wood screws. As a result, a seismic control frame structure is obtained in which the seismic control damper 10B is erected in approximately half the space on the front side within the thickness of the frame 2.

以上の如く構成された制震ダンパー１０Ｂを架設したフレーム２において、地震等によって水平な外力が反復して加わり、フレーム２が水平方向に変形すると、制震ダンパー１０Ｂには軸方向に圧縮力と引張力とが交互に作用して、ダンパー１１の外管１３と内管１４とが相反する軸方向へ動作する。この動作によって粘弾性体１５をせん断変形させて減衰作用を生じさせることになる。
このとき、ダンパー１１の両端には、接合部Ｐ１，Ｐ３を除いた中間部Ｐ４の厚みＴ２がダンパー本体部の厚みＴよりも大きい延長木材１２，１２が接合されているので、延長木材１２の剛性を確保できる。よって、変位が効率よく入力されて粘弾性体１５をせん断変形させることができ、効果的な減衰作用が得られる。 In the frame 2 on which the seismic damping damper 10B configured as described above is erected, when a horizontal external force is repeatedly applied due to an earthquake or the like and the frame 2 is deformed in the horizontal direction, the seismic damping damper 10B receives a compressive force in the axial direction. The tensile force acts alternately, and the outer tube 13 and the inner tube 14 of the damper 11 operate in opposite axial directions. By this operation, the viscoelastic body 15 is sheared and deformed to generate a damping action.
At this time, the extension woods 12 and 12 having a thickness T2 of the intermediate portion P4 excluding the joint portions P1 and P3 larger than the thickness T of the damper main body are joined to both ends of the damper 11, so that the extension wood 12 is joined. Rigidity can be secured. Therefore, the displacement can be efficiently input and the viscoelastic body 15 can be sheared and deformed, and an effective damping action can be obtained.

このように、上記形態３の制震ダンパー１０Ｂ及び制震フレーム構造においても、ダンパー本体部の厚みＴが、中枠６の切欠部８の深さ以下に設定されている一方、延長木材１２は、中間部Ｐ４の厚みＴ２がダンパー本体部の厚みＴよりも大きく設定されて、ダンパー本体部よりも中間部Ｐ４が内側へはみ出す状態で連結部１８及び連結板２１に接合されているため、厚みの薄いダンパー１１が枠組壁工法のフレーム２内に設置される場合でも、延長木材１２の剛性を確保して加振時の変位を効率よく入力させることができる。
また、延長木材１２の接合部Ｐ１で本体部Ｐ２のはみ出し側の面に、フレーム面との直交方向の厚みＴ１を中間部Ｐ４の厚みＴ２よりも小さくする切欠き２０ａを形成しているので、延長木材１２の中間部Ｐ４の厚みを大きくしても厚みの薄いダンパー１１を容易に接合することができる。 As described above, also in the vibration control damper 10B and the vibration control frame structure of the above-described third form, the thickness T of the damper main body is set to be equal to or less than the depth of the notch 8 of the middle frame 6, while the extension wood 12 is , The thickness T2 of the intermediate portion P4 is set to be larger than the thickness T of the damper main body portion, and the intermediate portion P4 is joined to the connecting portion 18 and the connecting plate 21 in a state where the intermediate portion P4 protrudes inward from the damper main body portion. Even when the thin damper 11 is installed in the frame 2 of the frame wall construction method, the rigidity of the extension wood 12 can be ensured and the displacement at the time of vibration can be efficiently input.
Further, since the joint portion P1 of the extension wood 12 has a notch 20a formed on the protruding side surface of the main body portion P2 so that the thickness T1 in the direction orthogonal to the frame surface is smaller than the thickness T2 of the intermediate portion P4. Even if the thickness of the intermediate portion P4 of the extension wood 12 is increased, the thin damper 11 can be easily joined.

そして、延長木材１２におけるフレーム２側の接合部Ｐ３で切欠き２０ａ形成側の面には、直交方向の厚みを中間部Ｐ４の厚みＴ２よりも小さくする第２の切欠き２３が形成されて、第２の切欠き２３に、フレーム２へ接合するためのブラケット金具２２が取り付け可能となっているので、フレーム２の内側に取り付けたブラケット金具２２に対して制震ダンパー１０Ｂを外側（正面側）からフレーム２内に組み付けることができる。よって、現場施工は勿論、工場でも施工が可能となる。 Then, a second notch 23 is formed on the surface of the joint portion P3 on the frame 2 side of the extension wood 12 on the notch 20a forming side so that the thickness in the orthogonal direction is smaller than the thickness T2 of the intermediate portion P4. Since the bracket metal fitting 22 for joining to the frame 2 can be attached to the second notch 23, the vibration damping damper 10B is attached to the outside (front side) of the bracket metal fitting 22 attached to the inside of the frame 2. Can be assembled in the frame 2. Therefore, not only on-site construction but also factory construction is possible.

［形態４］
図７に示す制震ダンパー１０Ｃでは、延長木材１２の接合部に切欠きや第２の切欠きが設けられておらず、両端の接合部や中間部を含む長手方向の全長に亘ってダンパー本体部の厚みＴより大きい厚みＴ２で形成されている。よって、ダンパー１１では、一方の連結部１８ａが、外側へ折曲された後、他方の連結部１８ｂと平行となるように折曲されて、延長木材１２側の間隔を延長木材１２の厚みに合わせて拡開形成している。同様に、連結部１８ａと同じ側の一方の連結板２１ａも、外側へ折曲された後、他方の連結板２１ｂと平行になるように折曲されて、延長木材１２側の間隔を延長木材１２の厚みに合わせて拡開形成している。 [Form 4]
In the vibration control damper 10C shown in FIG. 7, the joint portion of the extension wood 12 is not provided with a notch or a second notch, and the damper main body extends over the entire length in the longitudinal direction including the joint portion at both ends and the intermediate portion. It is formed with a thickness T2 larger than the thickness T of the portion. Therefore, in the damper 11, one connecting portion 18a is bent outward and then bent so as to be parallel to the other connecting portion 18b, so that the distance on the extension wood 12 side is adjusted to the thickness of the extension wood 12. It is also expanded and formed. Similarly, one connecting plate 21a on the same side as the connecting portion 18a is also bent outward and then bent so as to be parallel to the other connecting plate 21b, so that the distance on the extension wood 12 side is extended. It is expanded and formed according to the thickness of 12.

よって、延長木材１２，１２は、一方が連結部１８ａ，１８ｂの間に挿入されて木ねじで接合され、他方が連結板２１ａ，２１ｂの間に挿入されて木ねじで接合されることで、それぞれ外管１３と内管１４とに延長状に接合される。このとき、延長木材１２の端部を連結部１８ａの折曲部分及び連結板２１ａの折曲部分に当接するまで挿入することで、挿入方向での位置決めが容易に行える。
こうして得られた制震ダンパー１０Ｃは、ダンパー１１から肉厚の延長木材１２がはみ出す側をフレーム２の内側とした向きで、ブラケット金具２２，２２を介して各延長木材１２を仕口部に固定する。これにより、制震ダンパー１０Ｃがフレーム２の厚み内の正面側で略半分のスペース内で架設された制震フレーム構造が得られる。 Therefore, one of the extended timbers 12 and 12 is inserted between the connecting portions 18a and 18b and joined with a wood screw, and the other is inserted between the connecting plates 21a and 21b and joined with a wood screw. It is joined to the pipe 13 and the inner pipe 14 in an extended manner. At this time, by inserting the end portion of the extension wood 12 until it comes into contact with the bent portion of the connecting portion 18a and the bent portion of the connecting plate 21a, positioning in the insertion direction can be easily performed.
The seismic damping damper 10C thus obtained has the extension wood 12 fixed to the joint via the bracket fittings 22 and 22 in a direction in which the side where the thick extension wood 12 protrudes from the damper 11 is the inside of the frame 2. To do. As a result, a seismic control frame structure is obtained in which the seismic control damper 10C is erected in approximately half the space on the front side within the thickness of the frame 2.

以上の如く構成された制震ダンパー１０Ｃを架設したフレーム２において、地震等によって水平な外力が反復して加わり、フレーム２が水平方向に変形すると、制震ダンパー１０Ｃには軸方向に圧縮力と引張力とが交互に作用して、ダンパー１１の外管１３と内管１４とが相反する軸方向へ動作する。この動作によって粘弾性体１５をせん断変形させて減衰作用を生じさせることになる。
このとき、ダンパー１１の両端には、ダンパー本体部の厚みＴよりも大きい延長木材１２，１２が接合されているので、延長木材１２の剛性を確保できる。よって、変位が効率よく入力されて粘弾性体１５をせん断変形させることができ、効果的な減衰作用が得られる。 In the frame 2 on which the seismic damping damper 10C configured as described above is erected, when a horizontal external force is repeatedly applied due to an earthquake or the like and the frame 2 is deformed in the horizontal direction, the seismic damping damper 10C receives a compressive force in the axial direction. The tensile force acts alternately, and the outer tube 13 and the inner tube 14 of the damper 11 operate in opposite axial directions. By this operation, the viscoelastic body 15 is sheared and deformed to generate a damping action.
At this time, since the extension timbers 12 and 12 having a thickness T larger than the thickness T of the damper main body are joined to both ends of the damper 11, the rigidity of the extension timber 12 can be ensured. Therefore, the displacement can be efficiently input and the viscoelastic body 15 can be sheared and deformed, and an effective damping action can be obtained.

このように、上記形態４の制震ダンパー１０Ｃ及び制震フレーム構造においても、ダンパー本体部の厚みＴが、中枠６の切欠部８の深さ以下に設定されている一方、延長木材１２は、全体の厚みＴ２がダンパー本体部の厚みＴよりも大きく設定されて、ダンパー本体部よりも内側へはみ出す状態で連結部１８及び連結板２１に接合されているため、厚みの薄いダンパー１１が枠組壁工法のフレーム２内に設置される場合でも、延長木材１２の剛性を確保して加振時の変位を効率よく入力させることができる。
特にここでは、延長木材１２の厚みＴ２は、両端の接合部を含む全長に亘ってダンパー本体部の厚みＴよりも大きく設定されて、ダンパー１１の連結部１８及び連結板２１は、延長木材１２の厚みに合わせて延長木材１２のはみ出し側へ拡開形成されているので、他の形態よりも高い剛性が得られる。また、延長木材１２に切欠きを形成しないので、加工コストも抑えられる。 As described above, also in the seismic control damper 10C and the seismic control frame structure of the above-described fourth form, the thickness T of the damper main body is set to be equal to or less than the depth of the notch 8 of the middle frame 6, while the extension wood 12 is Since the overall thickness T2 is set to be larger than the thickness T of the damper main body and is joined to the connecting portion 18 and the connecting plate 21 in a state of protruding inward from the damper main body, the thin damper 11 is framed. Even when it is installed in the frame 2 of the wall construction method, it is possible to secure the rigidity of the extension wood 12 and efficiently input the displacement at the time of vibration.
In particular, here, the thickness T2 of the extension wood 12 is set to be larger than the thickness T of the damper main body over the entire length including the joints at both ends, and the connecting portion 18 and the connecting plate 21 of the damper 11 are made of the extension wood 12. Since the extension wood 12 is formed to expand to the protruding side according to the thickness of the wood 12, higher rigidity than other forms can be obtained. Further, since the extension wood 12 does not form a notch, the processing cost can be suppressed.

［他の変更例］
なお、延長木材の構造は上記各形態に限らず、例えば図８に示すように、接合部Ｐ１にＬ字状でない切欠き２０を形成した延長木材１２の本体部Ｐ２において、仕口部との接合部Ｐ３に、内側にブラケット金具２２を取り付けるための第２の切欠き２３を設けてもよい。また、形態４のように接合部Ｐ１を切欠きのない肉厚とした延長木材１２の本体部Ｐ２において、仕口部との接合部Ｐ３のみに、第２の切欠き２３を設けてもよい。切欠き自体の形状も上記形態に限らず、連結部や連結板が幅方向の中央に嵌合する外形がＵ字状の切欠きとする等、適宜変更可能である。 [Other changes]
The structure of the extension wood is not limited to each of the above forms. For example, as shown in FIG. 8, in the main body portion P2 of the extension wood 12 in which a notch 20 having a non-L shape is formed in the joint portion P1, the structure of the extension wood is different from that of the joint portion. A second notch 23 for attaching the bracket metal fitting 22 may be provided inside the joint P3. Further, in the main body portion P2 of the extension wood 12 having the joint portion P1 having a wall thickness without a notch as in the fourth embodiment, the second notch 23 may be provided only at the joint portion P3 with the joint portion. .. The shape of the notch itself is not limited to the above-mentioned form, and can be appropriately changed such that the outer shape in which the connecting portion and the connecting plate are fitted in the center in the width direction is a U-shaped notch.

一方、中枠の構造も上記各形態に限らず、例えば図９に示すように、中枠６を縦枠５と同様に２本の製材２４，２４を左右に積層して形成し、各製材に切欠部８及び補強金具９を設けることもできる。このように中枠６を２本の製材を組み合わせて形成すれば、中枠６の剛性が高まり、鉛直荷重を支えることができる。なお、図９では形態１の制震ダンパー１０を示しているが、他の形態でも同様に採用できる。また、中枠は３本以上の製材を組み合わせてもよい。
また、図１０に示すように、２本の製材２４，２４を左右でなく前後に積層して中枠６を形成し、正面側の製材２４に幅広の切欠部８及び補強金具９を設けることもできる。この場合も背面側の製材２４に切欠部が設けられないため、鉛直荷重を支えることができる。この変更例も他の形態でも採用可能である。
さらに、図１１に示すように、中枠６となる２本の製材２４，２４を左右方向に所定間隔をおいて離して配置してもよい。これも他の形態でも採用可能で、この場合も中枠は３本以上の製材を所定間隔をおいて配置してもよい。 On the other hand, the structure of the middle frame is not limited to each of the above forms. For example, as shown in FIG. 9, the middle frame 6 is formed by laminating two sawn timbers 24 and 24 on the left and right in the same manner as the vertical frame 5, and each sawn timber is formed. A notch 8 and a reinforcing metal fitting 9 may be provided on the surface. If the middle frame 6 is formed by combining two lumbers in this way, the rigidity of the middle frame 6 is increased and a vertical load can be supported. Although FIG. 9 shows the vibration control damper 10 of the first form, it can be similarly adopted in other forms. Further, the middle frame may be a combination of three or more lumbers.
Further, as shown in FIG. 10, two lumbers 24 and 24 are laminated on the front and back instead of on the left and right to form an inner frame 6, and a wide notch 8 and a reinforcing metal fitting 9 are provided on the lumber 24 on the front side. You can also. In this case as well, since the sawn timber 24 on the back side is not provided with a notch, a vertical load can be supported. This modification can also be adopted in other forms.
Further, as shown in FIG. 11, the two lumbers 24, 24 serving as the middle frame 6 may be arranged apart from each other at a predetermined interval in the left-right direction. This can also be adopted in other forms, and in this case as well, three or more lumbers may be arranged at predetermined intervals in the middle frame.

加えて、縦枠の構造も上記形態に限らず、製材を左右方向に２本でなく３本以上積層して形成したり、図１２（Ａ）に示すように、長手断面方向をフレーム２の前後方向とする１本の製材２４ａと、長手断面方向をフレーム２の左右方向とする２本の製材２４ｂ、２４ｂとを組み合わせて縦枠５を形成したりしてもよい。２５は前後の製材２４ｂ，２４ｂの隙間を埋める合板であるが、製材の寸法やフレーム２の厚み等によっては省略してもよい。また、同図（Ｂ）に示すように、前後の製材２４ｂは３本以上（ここでは４本）積層して縦枠５を形成してもよい。さらに、縦枠は１本の厚肉の製材を採用してもよい。 In addition, the structure of the vertical frame is not limited to the above-mentioned form, and three or more sawn timbers are laminated in the left-right direction instead of two, or as shown in FIG. 12 (A), the longitudinal cross-sectional direction is the frame 2. The vertical frame 5 may be formed by combining one sawn timber 24a in the front-rear direction and two sawn timbers 24b and 24b in the left-right direction of the frame 2 in the longitudinal cross-sectional direction. Reference numeral 25 denotes a plywood that fills the gaps between the front and rear lumbers 24b and 24b, but may be omitted depending on the dimensions of the lumber, the thickness of the frame 2, and the like. Further, as shown in FIG. 3B, three or more (here, four) sawn timbers 24b may be laminated to form the vertical frame 5. Further, the vertical frame may be made of one thick lumber.

その他、ダンパー自体の形態も、外管と内管とを横断面矩形でなく多角形や長円形としたり、二重管構造でなく複数の板体を粘弾性体を介して交互に積層した積層構造等としたりしてもよい。
また、延長木材は、横断面矩形に限らず、円形や長円形、半円形や台形、六角形等の他の横断面形状も採用できる。特に、フレーム内側への延長木材のはみ出し量を大きくして背面側の面材に当接させるようにすれば、制震ダンパーの座屈防止作用も期待できる。さらに、延長木材はダンパーの両端でなく何れか一端側にのみ設けるものであっても本発明の制震ダンパーは形成可能である。この場合はダンパーがフレームの一方の仕口部に固定されることになる。
そして、フレームも２×４工法に限らず、２×６工法等の他の枠組壁工法のものであってもよい。 In addition, as for the form of the damper itself, the outer pipe and the inner pipe are not rectangular in cross section but polygonal or oval, or a plurality of plates are alternately laminated via a viscoelastic body instead of a double pipe structure. It may be a structure or the like.
Further, the extended wood is not limited to a rectangular cross section, and other cross section shapes such as a circle, an oval, a semicircle, a trapezoid, and a hexagon can be adopted. In particular, if the amount of extension wood protruding into the frame is increased so that it comes into contact with the face material on the back side, a buckling prevention effect of the vibration damping damper can be expected. Further, the vibration damping damper of the present invention can be formed even if the extension wood is provided only on one end side of the damper, not on both ends. In this case, the damper is fixed to one of the joints of the frame.
The frame is not limited to the 2x4 construction method, and may be another frame wall construction method such as the 2x6 construction method.

１・・端根太、２・・フレーム、３・・上枠、４・・下枠、５・・縦枠、６・・中枠、７・・面材、８・・切欠部、９・・補強金具、１０，１０Ａ，１０Ｂ，１０Ｃ・・制震ダンパー、１１・・ダンパー、１２・・延長木材、１３・・外管、１４・・内管、１５・・粘弾性体、１６・・半割金具、１７・・フランジ、１８・・連結部、１９・・凸部、２０，２０ａ・・切欠き、２１・・連結板、２２・・ブラケット金具、２３・・第２の切欠き、２４，２４ａ，２４ｂ・・製材、Ｐ１，Ｐ３・・接合部、Ｐ２・・本体部、Ｐ４・・中間部、Ｔ・・ダンパー本体部の厚み、Ｔ１・・接合部の厚み、Ｔ２・・本体部及び中間部の厚み。 1 ... end joist, 2 ... frame, 3 ... upper frame, 4 ... lower frame, 5 ... vertical frame, 6 ... middle frame, 7 ... face material, 8 ... notch, 9 ... Reinforcing metal fittings, 10, 10A, 10B, 10C ... Vibration control damper, 11 ... Damper, 12 ... Extension wood, 13 ... Outer pipe, 14 ... Inner pipe, 15 ... Viscoelastic body, 16 ... Half Split metal fittings, 17 ... flange, 18 ... connecting part, 19 ... convex part, 20, 20a ... notch, 21 ... connecting plate, 22 ... bracket metal fittings, 23 ... second notch, 24 , 24a, 24b ... Sawmill, P1, P3 ... Joint, P2 ... Main body, P4 ... Intermediate, T ... Damper main body thickness, T1 ... Joint thickness, T2 ... Main body And the thickness of the middle part.

Claims

A pair of vertical frames in the vertical direction and a middle frame in the vertical direction located between the vertical frames are included in a frame formed in a wooden building of the framework wall construction method. It is a seismic control damper composed of a linear damper erected in a brace shape through a notch formed at a predetermined depth in the orthogonal direction and a linear extension wood joined to the damper in an extension shape. hand,
The damper includes a damper main body portion and a connecting portion with the extension wood provided at the end portion thereof, and at least the thickness of the damper main body portion in the orthogonal direction is set to be equal to or less than the depth of the notch portion. On the other hand
The extension wood includes a connecting portion, joints at both ends joined to the frame, and an intermediate portion between the joints, and at least the thickness of the intermediate portion in the orthogonal direction is orthogonal to the damper main body portion. The connection is set so as to be larger than the thickness in the direction and less than or equal to the thickness of the frame in the orthogonal direction, and the intermediate portion protrudes from the damper main body portion to either one side in the orthogonal direction. A vibration control damper characterized by being joined to the part.

The extension wood is characterized in that a notch is formed on the protruding side surface of the intermediate portion at the joint portion on the connecting portion side so that the thickness in the orthogonal direction is smaller than the thickness of the intermediate portion. The vibration control damper according to claim 1.

The vibration damping damper according to claim 2, wherein the notch is partially formed except for a side edge on one side of the protruding side surface, and has an L-shaped outer shape.

The damper is provided with the connecting portions at both ends, and the extension wood is pair-joined to the connecting portions so that the L-shaped notches are arranged in a point-symmetrical manner around the damper. The vibration control damper according to claim 3, wherein the vibration control damper is characterized in that.

A second notch is formed on the surface of the extension wood at the joint portion on the frame side and on the notch forming side so that the thickness in the orthogonal direction is smaller than the thickness of the intermediate portion. The vibration damping damper according to any one of claims 2 to 4, wherein a bracket metal fitting for joining to the frame can be attached to the notch.

The thickness of the extension wood in the orthogonal direction is set to be larger than the thickness of the damper main body in the orthogonal direction over the entire length including the joints at both ends, and the connecting portion of the damper is the extension wood. The seismic damping damper according to claim 1, wherein the extension wood is formed so as to expand to the protruding side according to the thickness of the extension wood.

In a frame formed in a wooden building of the framework wall construction method including a pair of vertical frames in the vertical direction and a middle frame in the vertical direction located between the vertical frames, a linear damper and the damper It is a seismic control frame structure in which a seismic control damper made of extended wood that is joined in an extension shape is erected in a brace shape.
The middle frame has a notch portion formed at a predetermined depth in a direction orthogonal to the frame surface and through which the damper penetrates.
The seismic control damper is characterized in that the seismic control damper according to any one of claims 1 to 6 is erected with the protruding side of the intermediate portion of the extension wood facing the inside of the frame. Vibration control frame structure.

The vibration control frame structure according to claim 7, wherein the middle frame is formed by combining two or more sawn timbers.

The vibration control frame structure according to claim 7, wherein the middle frame is made of two or more sawn timbers spaced apart from each other in the horizontal direction.