JP2020084440A - Energy absorbing device and bearing wall with energy absorbing device - Google Patents

Energy absorbing device and bearing wall with energy absorbing device Download PDF

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JP2020084440A
JP2020084440A JP2018216146A JP2018216146A JP2020084440A JP 2020084440 A JP2020084440 A JP 2020084440A JP 2018216146 A JP2018216146 A JP 2018216146A JP 2018216146 A JP2018216146 A JP 2018216146A JP 2020084440 A JP2020084440 A JP 2020084440A
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JP7172488B2 (en
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綾那 久積
Ayana Hisazumi
綾那 久積
清水　信孝
Nobutaka Shimizu
信孝 清水
佐藤　圭一
Keiichi Sato
圭一 佐藤
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Nippon Steel Corp
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Abstract

To provide an energy absorbing device and a bearing wall with the energy absorbing device capable of rationally exhibiting energy absorbing performance of the energy absorbing device, without increasing the board thickness of a peripheral constitution member, without increasing the number of components, and without increasing the weight of the wall, while maintaining the rigidity as the bearing wall.SOLUTION: An energy absorbing device 10 has a U-shaped member 11 formed in an approximately U-shape in a cross sectional direction. The U-shaped member 11 has a curved part 12, a pair of deformed parts 13 continuously extended from both ends of the curved part, and a pair of connection parts 14 continuously extended from both ends of the pair of deformed parts 13. Fixing parts 15 continuously extended in a direction orthogonal to an extended direction of the connection parts 14 are provided to the pair of connection parts 14. The pair of fixing parts 15 are provided to the connection parts 14 in a direction orthogonal to the cross sectional direction with a facing interval, and are fixed to a bearing wall 30 directly or indirectly.SELECTED DRAWING: Figure 1

Description

本発明は、エネルギー吸収デバイスおよびエネルギー吸収デバイス付き耐力壁に関する。 The present invention relates to an energy absorbing device and a load bearing wall with an energy absorbing device.

プレファブ住宅等の小規模建築において、耐震安全性を高めるために、鉛直構面（柱梁、耐力壁など）や水平構面（基礎免震など）にエネルギー吸収デバイスが適用されることが多い。 In small-scale buildings such as prefabricated houses, energy absorbing devices are often applied to vertical structures (column beams, bearing walls, etc.) and horizontal structures (base seismic isolation, etc.) in order to enhance seismic safety.

地震時においてエネルギー吸収による制震作用を簡素な構造で効果的に実現するものとして、例えば、特許文献１および特許文献２に記載の技術が知られている。
特許文献１に記載の建物制震構造は、左拘束部と右拘束部との間に配置されたＵ字形弾塑性ダンパーが、Ｕ字状湾曲部を上又は下に位置させた姿勢状態で、左側対向辺部が左拘束部に沿って連結されるとともに、右側対向辺部が右拘束部に沿って連結される。
このような建物制震構造は、地震時に上階と下階とが互いに相対変位する層間変位によって、Ｕ字形弾塑性ダンパーが、左右の拘束部の両拘束面により左右の対向辺部の左右方向への変形が拘束されたまま、Ｕ字状湾曲部の位置を移動させていく弾塑性変形をすることで、地震時にエネルギー吸収できるものとなっている。 Techniques described in Patent Literature 1 and Patent Literature 2, for example, are known as those that effectively realize a damping effect by energy absorption with a simple structure during an earthquake.
In the building damping structure described in Patent Document 1, the U-shaped elasto-plastic damper disposed between the left restraint portion and the right restraint portion is in a posture state in which the U-shaped curved portion is positioned above or below, The left facing side portion is connected along the left restraining portion, and the right facing side portion is connected along the right restraining portion.
In this type of building damping structure, the U-shaped elasto-plastic damper causes the left and right opposing sides to move in the left-right direction by the constraining surfaces of the left and right constraining portions due to the interlayer displacement in which the upper floor and the lower floor are displaced relative to each other during an earthquake. The energy can be absorbed at the time of an earthquake by performing elasto-plastic deformation in which the position of the U-shaped curved portion is moved while the deformation to be restrained.

また、特許文献２に記載の耐震壁構造は、エネルギー吸収デバイスが構面内に設けられる耐震壁構造であって、横枠及び縦枠を組み合わせた枠体と、前記枠体の内部に設けられてエネルギー吸収デバイスとなるＵ形部材と、前記Ｕ形部材が前記枠体の内部で支持される支持材とを備え、前記Ｕ形部材は、断面方向で略Ｕ形状に形成されて、湾曲部と、前記湾曲部の両端部から連続して延びる一対の中間部と、一対の前記中間部の端部から連続して延びる一対の固定部とを有して、断面直交方向に作用する力に抵抗するものとして、前記支持材に取り付けられるものとなっている。
このような耐震壁構造では、断面直交方向に作用する力に抵抗するＵ形部材とすることで、Ｕ形部材の断面直交方向の変形が抑制されて、地震時に安定したエネルギー吸収性能を発揮させることが可能となる。 Further, the earthquake-resistant wall structure described in Patent Document 2 is an earthquake-resistant wall structure in which an energy absorbing device is provided in a construction plane, and is provided inside a frame body that is a combination of a horizontal frame and a vertical frame. A U-shaped member serving as an energy absorbing device, and a support member in which the U-shaped member is supported inside the frame body. The U-shaped member is formed in a substantially U shape in a cross-sectional direction, and has a curved portion. And a pair of intermediate portions continuously extending from both ends of the curved portion, and a pair of fixing portions continuously extending from the end portions of the pair of intermediate portions, the force acting in the direction orthogonal to the cross section. As a resistance element, it is attached to the support member.
In such a seismic wall structure, the U-shaped member that resists the force acting in the direction orthogonal to the cross section is restrained from deforming in the direction orthogonal to the cross section, and stable energy absorption performance is exhibited during an earthquake. It becomes possible.

特開２００９−２７０３３６号公報JP, 2009-270336, A 特開２０１７−６１８０８号公報JP, 2017-61808, A

ところで、耐力壁のエネルギー吸収性能を合理的に発揮させるには耐力壁としての剛性を十分に確保する必要がある。耐力壁の剛性を確保するには、エネルギー吸収部材（エネルギー吸収デバイス）の周辺構成部材の板厚を大きくするか、部品点数を増やす方法が最も簡便であるが、コスト、施工性の観点から部品点数、鋼重量を顕著に増やすことは合理的ではない。
また、近年では狭小地に建設される住宅やプランの自由度をあげるためにも、細幅の耐力壁のニーズも高まっているが、単純に耐力壁の幅を狭めるだけでは、デバイスの効きが悪くなる場合が多く、また耐力壁としての剛性が急激に低下する。 By the way, in order to reasonably exhibit the energy absorbing performance of the bearing wall, it is necessary to secure sufficient rigidity as the bearing wall. In order to secure the rigidity of the load bearing wall, the most convenient method is to increase the plate thickness of the peripheral components of the energy absorbing member (energy absorbing device) or increase the number of parts, but from the viewpoint of cost and workability It is not rational to increase the score and weight of steel significantly.
In recent years, there is a growing need for narrow bearing walls in order to increase the flexibility of houses and plans that are built in small areas. However, simply narrowing the bearing walls will make the device more effective. In many cases, the rigidity of the bearing wall is sharply reduced.

本発明は、前記事情に鑑みてなされたもので、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁としての剛性を確保しつつ、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮させることができるエネルギー吸収デバイスおよびエネルギー吸収デバイス付き耐力壁を提供することを目的とする。 The present invention has been made in view of the above circumstances, while increasing the plate thickness of the peripheral components, increasing the number of parts, and further increasing the wall weight, while ensuring the rigidity as a load bearing wall. , An energy absorbing device capable of reasonably exhibiting the energy absorbing performance of the energy absorbing device and a load bearing wall with the energy absorbing device.

前記目的を達成するために、本発明のエネルギー吸収デバイスは、耐力壁に設けられるエネルギー吸収デバイスであって、
断面方向で略Ｕ字形状に形成されたＵ形部材を備え、
前記Ｕ形部材は、湾曲部と、この湾曲部の両端部からそれぞれ連続して延びる一対の変形部と、当該一対の変形部の端部からそれぞれ連続して延びる一対の連結部とを備え、
一対の前記連結部に、それぞれ当該連結部が延びる方向と直交する方向に連続して延びる固定部が設けられ、
前記固定部は前記連結部にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられて、前記耐力壁に直接または間接的に固定されることを特徴とする。
ここで、前記断面方向と直交する方向とは、前記断面方向と直交する方向を前記連結部の幅方向とすると、当該幅方向のことを言う。 In order to achieve the above object, the energy absorbing device of the present invention is an energy absorbing device provided on a load bearing wall,
A U-shaped member formed in a substantially U-shape in the cross-sectional direction,
The U-shaped member includes a curved portion, a pair of deformed portions that continuously extend from both ends of the curved portion, and a pair of connecting portions that continuously extends from end portions of the pair of deformed portions,
Each of the pair of connecting portions is provided with a fixing portion that continuously extends in a direction orthogonal to the extending direction of the connecting portion,
A pair of the fixing portions may be provided on the connecting portion so as to face each other in a direction orthogonal to the cross-sectional direction, and may be directly or indirectly fixed to the bearing wall.
Here, the direction orthogonal to the cross-sectional direction means the width direction of the connecting portion when the direction orthogonal to the cross-sectional direction is the width direction of the connecting portion.

本発明においては、エネルギー吸収デバイスの一対の前記連結部に、それぞれ当該連結部が延びる方向と直交する方向に連続して延びる固定部が設けられ、当該固定部は連結部にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられて、耐力壁に直接または間接的に固定されるので、耐力壁を構成する柱の面外局所変形を抑制できる。したがって、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁としての剛性を確保することが可能となり、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮できる。 In the present invention, the pair of connecting portions of the energy absorbing device are provided with fixing portions that respectively extend continuously in a direction orthogonal to the direction in which the connecting portions extend, and the fixing portions are provided in the connecting portions in the cross-sectional direction. The pairs are provided so as to face each other in a direction orthogonal to each other, and are directly or indirectly fixed to the load bearing wall, so that the out-of-plane local deformation of the columns forming the load bearing wall can be suppressed. Therefore, it becomes possible to secure the rigidity of the load bearing wall without increasing the plate thickness of the peripheral components, increasing the number of parts, and increasing the wall weight, and the energy of the energy absorbing device can be rationalized. Can exhibit absorption performance.

また、本発明の前記構成において、前記断面方向における前記固定部の端と、前記連結部の端とが等しい位置にあり、
前記断面方向における前記固定部の長さ寸法が、前記湾曲部の頂部と前記変形部の端部との間の距離と等しくなっていてもよい。 Further, in the above configuration of the present invention, an end of the fixing portion in the cross-sectional direction and an end of the connecting portion are at the same position,
The length dimension of the fixed portion in the cross-sectional direction may be equal to the distance between the top of the curved portion and the end of the deformed portion.

このような構成によれば、所定の板厚を有する鋼板から効率的にエネルギー吸収デバイスを展開した展開部材を切り出すことができる。
つまり、一体的に形成されたエネルギー吸収デバイスは、展開することによって、一方の連結部および当該連結部を挟むようにして設けられた一方の一対の固定部からなる第１長方形板部と、他方の連結部および当該連結部を挟むようにして設けられた他方の一対の固定部からなる第２長方形板部と、長方形状に伸ばされた湾曲部および当該湾曲部を挟むようにして設けられた一対の変形部からなり、かつ、前記第１長方形板部と第２長方形板部とを接続する長方形板状の第３長方形板部とから構成されている。
そして、前記固定部の長さ寸法が、前記湾曲部の頂部と前記変形部の端部との間の距離と等しくなっているので、第１長方形板部と第２長方形板部との間の距離は、第１長方形板部と第２長方形板部のそれぞれ短辺の２倍の長さとなる。
したがって、第１長方形板部と第２長方形板部との間に、他の異なる一方のエネルギー吸収デバイスを展開してなる展開部材の第１長方形板部と、他の異なる他方のエネルギー吸収デバイスを展開してなる展開部材の第２長方形板部とを並べるようにして配置し、さらに、一方向に連続して展開部材を配置するとともに、一方向と直交する直交方法に展開部材を第１長方形板部の短辺（第２長方形板部の短辺）の長さに相当する寸法だけずらして配置することによって、展開部材を切り出すための鋼板に、当該展開部材を密に配置することができる。したがって、当該展開部材を鋼板から切り出すことによって、鋼板から効率的にエネルギー吸収デバイスを展開した展開部材を切り出すことができる。 With such a configuration, it is possible to efficiently cut out the deployable member in which the energy absorbing device is deployed from the steel plate having the predetermined plate thickness.
That is, the integrally formed energy absorbing device is expanded to expand the first rectangular plate portion including one connecting portion and one pair of fixing portions provided so as to sandwich the connecting portion, and the other connecting portion. A second rectangular plate portion formed of the other pair of fixing portions provided so as to sandwich the connecting portion and the connecting portion, a curved portion extended in a rectangular shape, and a pair of deforming portions provided so as to sandwich the curved portion. And a third rectangular plate portion having a rectangular plate shape connecting the first rectangular plate portion and the second rectangular plate portion.
Since the length of the fixed portion is equal to the distance between the top of the curved portion and the end of the deformed portion, the length between the first rectangular plate portion and the second rectangular plate portion is increased. The distance is twice the length of the short side of each of the first rectangular plate portion and the second rectangular plate portion.
Therefore, between the first rectangular plate portion and the second rectangular plate portion, the first rectangular plate portion of the deploying member obtained by deploying the other different energy absorbing device and the other different energy absorbing device are provided. The deploying member is placed so as to be aligned with the second rectangular plate portion of the deploying member, and further, the deploying member is disposed continuously in one direction, and the deploying member is arranged in the orthogonal direction orthogonal to the one direction. By arranging by shifting by a dimension corresponding to the length of the short side of the plate part (short side of the second rectangular plate part), the expanding member can be densely arranged on the steel plate for cutting out the expanding member. .. Therefore, by cutting the deployable member from the steel plate, the deployable member having the energy absorbing device efficiently deployed can be cut out from the steel plate.

また、本発明のエネルギー吸収デバイス付き耐力壁は、前記エネルギー吸収デバイスと、耐力壁とを備えたエネルギー吸収デバイス付き耐力壁であって、
前記耐力壁は、一対の柱と、当該一対の柱の対向する面のそれぞれから対となって突出して設けられ締結部とを備え、
前記エネルギー吸収デバイスが一対の前記柱の間に配置され、当該エネルギー吸収デバイスの４つの前記固定部がそれぞれ４つの前記締結部に固定されていることを特徴とする。 Further, a load bearing wall with an energy absorbing device of the present invention is a load bearing wall with an energy absorbing device including the energy absorbing device and a load bearing wall,
The load bearing wall includes a pair of columns and a fastening portion that is provided so as to project in pairs from each of the facing surfaces of the pair of columns,
The energy absorbing device is arranged between a pair of the pillars, and the four fixing portions of the energy absorbing device are fixed to the four fastening portions, respectively.

本発明においては、エネルギー吸収デバイスの固定部が連結部からそれぞれ、当該連結部が延びる方向と直交する方向に連続して延び、さらに固定部は連結部にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられ、耐力壁は、一対の柱と、当該一対の柱の対向する面のそれぞれから対となって突出して設けられ締結部とを備え、前記エネルギー吸収デバイスが一対の前記柱の間に配置され、当該エネルギー吸収デバイスの４つの前記固定部がそれぞれ４つの前記締結部に固定されることによって、エネルギー吸収デバイスの固定部が締結部を介して一対の柱に間接的に固定されるので、耐力壁を構成する柱の面外局所変形を抑制できる。したがって、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁としての剛性を確保することが可能となり、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮できる。 In the present invention, the fixing portion of the energy absorbing device continuously extends from the connecting portion in a direction orthogonal to the direction in which the connecting portion extends, and the fixing portion faces the connecting portion in a direction orthogonal to the cross-sectional direction. The pair of spaced apart load-bearing walls are provided with a pair of pillars and a fastening portion projecting in pairs from each of the facing surfaces of the pair of pillars, and the energy absorption device is a pair of the The fixing parts of the energy absorbing device are arranged between the pillars and the four fixing parts of the energy absorbing device are fixed to the four fastening parts, respectively, so that the fixing parts of the energy absorbing device are indirectly connected to the pair of pillars via the fastening parts. Since it is fixed, it is possible to suppress the out-of-plane local deformation of the column forming the load bearing wall. Therefore, it becomes possible to secure the rigidity of the load bearing wall without increasing the plate thickness of the peripheral components, increasing the number of parts, and increasing the wall weight, and the energy of the energy absorbing device can be rationalized. Can exhibit absorption performance.

また、本発明の別のエネルギー吸収デバイス付き耐力壁は、前記エネルギー吸収デバイスと、耐力壁とを備えたエネルギー吸収デバイス付き耐力壁であって、
前記耐力壁は対向する面を有する一対の柱を備え、
前記エネルギー吸収デバイスが一対の前記柱の間に配置され、
前記エネルギー吸収デバイスの一方側の一対の前記固定部が一方の柱の対向する面に固定され、他方側の一対の前記固定部が他方の柱の対向する面に固定されていてもよい。 Further, another energy absorbing device-equipped load bearing wall of the present invention is the energy absorbing device-bearing load bearing wall including the energy absorbing device and the load bearing wall,
The load bearing wall comprises a pair of pillars having opposite surfaces,
The energy absorbing device is disposed between the pair of pillars,
The pair of fixing parts on one side of the energy absorbing device may be fixed to the facing surfaces of one pillar, and the pair of fixing parts on the other side may be fixed to the facing surfaces of the other pillar.

本発明においては、エネルギー吸収デバイスの固定部が連結部からそれぞれ、当該連結部が延びる方向と直交する方向に連続して延び、さらに固定部は連結部にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられ、耐力壁は、一対の柱を備え、前記エネルギー吸収デバイスが一対の前記柱の間に配置され、前記エネルギー吸収デバイスの一方側の一対の前記固定部が一方の柱の対向する面に固定され、他方側の一対の前記固定部が他方の柱の対向する面に固定されることによって、エネルギー吸収デバイスの固定部が一対の柱に直接固定されるので、耐力壁を構成する柱の面外局所変形を抑制できる。したがって、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁としての剛性を確保することが可能となり、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮できる。 In the present invention, the fixing portion of the energy absorbing device continuously extends from the connecting portion in a direction orthogonal to the direction in which the connecting portion extends, and the fixing portion faces the connecting portion in a direction orthogonal to the cross-sectional direction. The load-bearing walls are provided one pair apart from each other, the load-bearing wall includes a pair of columns, the energy absorbing device is disposed between the pair of columns, and the pair of fixing portions on one side of the energy absorbing device are one column. Of the energy absorbing device is fixed directly to the pair of pillars by fixing the pair of fixing portions on the other side to the opposite surfaces of the other pillar. It is possible to suppress the out-of-plane local deformation of the columns forming the. Therefore, it becomes possible to secure the rigidity as a load bearing wall without increasing the plate thickness of the peripheral components, increasing the number of parts, and increasing the wall weight, and the energy of the energy absorbing device can be rationalized. Can exhibit absorption performance.

また、本発明の前記構成において、前記一対の柱の芯間寸法と前記耐力壁の壁高さの比率が、１：６以上となっていてもよい。 Moreover, in the said structure of this invention, the ratio of the center distance of a pair of said pillar and the wall height of the said bearing wall may be 1:6 or more.

このような構成によれば、細幅耐力壁においても高剛性を発揮し、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮できる。 With such a configuration, high rigidity can be exhibited even in the narrow load bearing wall, and the energy absorbing performance of the energy absorbing device can be reasonably exhibited.

本発明によれば、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁としての剛性を確保しつつ、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮させることができる。 ADVANTAGE OF THE INVENTION According to this invention, the rigidity as a load bearing wall is ensured and the ratio of the energy absorption device is rationalized without increasing the plate thickness of the peripheral constituent members, increasing the number of parts, and further increasing the wall weight. Energy absorption performance can be exhibited.

本発明の第１の実施の形態に係るエネルギー吸収デバイスを示す斜視図である。It is a perspective view which shows the energy absorption device which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るエネルギー吸収デバイス付き耐力壁を示すもので、（ａ）は斜視図、（ｂ）は（ａ）におけるＸ楕円部の拡大図である。It shows the load bearing wall with an energy absorbing device according to the first embodiment of the present invention, (a) is a perspective view, (b) is an enlarged view of the X ellipse portion in (a). 図２（ａ）におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 本発明の第１の実施の形態に係るエネルギー吸収デバイス付き耐力壁を示す正面図である。It is a front view which shows the load bearing wall with an energy absorption device which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るエネルギー吸収デバイスの展開図である。It is a development view of the energy absorption device according to the first embodiment of the present invention. 本発明の第１の実施の形態に係るエネルギー吸収デバイスの展開部材を鋼板から切り出す方法を説明するための図である。It is a figure for demonstrating the method of cutting out the expansion member of the energy absorption device which concerns on the 1st Embodiment of this invention from a steel plate. 本発明の第１の実施の形態に係るエネルギー吸収デバイス付き耐力壁の第１変形例を示す平断面図である。It is a plane sectional view showing the 1st modification of the load bearing wall with an energy absorption device concerning a 1st embodiment of the present invention. 本発明の第１の実施の形態に係るエネルギー吸収デバイス付き耐力壁の第２変形例を示す平断面図である。It is a plane sectional view showing the 2nd modification of the load bearing wall with an energy absorption device concerning a 1st embodiment of the present invention. 本発明の第１の実施の形態に係るエネルギー吸収デバイス付き耐力壁の第３変形例を示す平断面図である。It is a plane sectional view showing the 3rd modification of a load bearing wall with an energy absorption device concerning a 1st embodiment of the present invention. 本発明の第２の実施の形態に係るエネルギー吸収デバイス付き耐力壁を示すもので、（ａ）は斜視図、（ｂ）は（ａ）におけるＸ円部の拡大図である。It shows the load bearing wall with an energy absorbing device according to the second embodiment of the present invention, (a) is a perspective view, (b) is an enlarged view of the X circle portion in (a). 図１０（ａ）におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 本発明の第２の実施の形態に係るエネルギー吸収デバイス付き耐力壁の変形例を示す平断面図である。It is a plane sectional view showing a modification of a load bearing wall with an energy absorption device concerning a 2nd embodiment of the present invention. 本発明に係る解析モデルを示す図である。It is a figure which shows the analysis model which concerns on this invention. 既往技術に係る解析モデルを示す図である。It is a figure which shows the analysis model which concerns on a prior art. 解析モデルに水平力を加えた状態を示す図である。It is a figure showing the state where horizontal force was applied to an analytical model. 解析結果における水平力Ｑ−層間変形量Δ関係を示すグラフである。It is a graph which shows the horizontal force Q-interlayer deformation amount (DELTA) relationship in an analysis result. 既往技術におけるＭｉｓｅｓ応力コンタ図である。It is a Mise's stress contour figure in the existing technology. 本発明におけるＭｉｓｅｓ応力コンタ図である。It is a Mise stress contour figure in the present invention.

以下、図面を参照しながら本発明の実施の形態について説明する。
（第１の実施の形態）
図１は、第１の実施の形態のエネルギー吸収デバイス１０を示す斜視図、図２はエネルギー吸収デバイス１０が設けられた耐力壁３０を示す図、図３は図２（ａ）におけるＡ−Ａ線断面図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a perspective view showing an energy absorbing device 10 of the first embodiment, FIG. 2 is a view showing a load bearing wall 30 provided with the energy absorbing device 10, and FIG. 3 is AA in FIG. It is a line sectional view.

図１〜図３に示すように、エネルギー吸収デバイス１０は耐力壁３０に設けられるものであり、所定形状の平坦な鋼板を折り曲げ成形することによって一体的に形成されている。
エネルギー吸収デバイス１０は、図１に示すように、断面方向（図１では上下方向）で略Ｕ字形状に形成されたＵ形部材１１を備えている。Ｕ形部材１１は、長方形状の帯板をＵ形に折り曲げて形成されたものであり、上側に凸の湾曲部１２と、この湾曲部１２の両端部からそれぞれ下方に連続して平行に延びる一対の変形部１３，１３と、当該一対の変形部１３，１３の端部（下端部）からそれぞれ下方に連続して平行に延びる一対の連結部１４，１４とを備えている。 As shown in FIGS. 1 to 3, the energy absorbing device 10 is provided on the load bearing wall 30, and is integrally formed by bending a flat steel plate having a predetermined shape.
As shown in FIG. 1, the energy absorbing device 10 includes a U-shaped member 11 formed in a substantially U-shape in the cross-sectional direction (the vertical direction in FIG. 1). The U-shaped member 11 is formed by bending a rectangular strip into a U shape, and has a curved portion 12 that is convex upward and both ends of the curved portion 12 that extend continuously in parallel downward. It is provided with a pair of deforming portions 13 and 13 and a pair of connecting portions 14 and 14 continuously extending in parallel downward from the end portions (lower end portions) of the pair of deforming portions 13 and 13, respectively.

湾曲部１２は断面略半円弧状に形成されている。また、変形部１３と連結部１４とは上下に連続する長方形板状に形成されている。Ｕ形部材１１は、長方形状の帯板をＵ形に折り曲げて形成されたものであるから、湾曲部１２、変形部１３および連結部１４の幅方向Ｗの寸法Ｓは等しくなっている。
なお、湾曲部１２を断面略半円弧状に形成するとともに、変形部１３，１３を長方形板状に形成することに代えて、湾曲部１２と変形部１３，１３とを断面方向において略半楕円形状に形成してもよい。 The curved portion 12 is formed in a substantially semi-circular cross section. Further, the deforming portion 13 and the connecting portion 14 are formed in a rectangular plate shape that is vertically continuous. Since the U-shaped member 11 is formed by bending a rectangular strip into a U shape, the dimension S in the width direction W of the curved portion 12, the deformed portion 13, and the connecting portion 14 is equal.
The curved portion 12 and the deformable portions 13 and 13 are formed in a substantially semi-elliptical shape in the cross-sectional direction instead of forming the curved portion 12 in a substantially semi-circular shape in cross section and forming the deformed portions 13 and 13 in a rectangular plate shape. It may be formed in a shape.

また、一対の連結部１４，１４に、それぞれ当該連結部１４，１４が延びる方向（図１において上下方向）と直交する方向（図１において左右方向）に連続して延びる長方形板状の固定部１５が設けられている。
固定部１５は連結部１４にそれぞれ前記断面方向（図１において上下方向）と直交する方向（図１において連結部１４の幅方向Ｗ）に対向離間して一対ずつ設けられている。したがって、固定部１５は合計２対（４つ）あり、一方の一対の固定部１５，１５はその側面を対向させた状態で、一方の連結部１４の上下に沿う両縁部に一体的に設けられ、他方の一対の固定部１５，１５はその側面を対向させた状態で、他方の連結部１４の上下に沿う両縁部に一体的に設けられている。
また、固定部１５と連結部１４の高さは等しくなっており、連結部１４の高さ方向に沿う縁部全体に固定部１５の高さ方向に沿う縁部全体が連結されている。 In addition, a rectangular plate-shaped fixing portion that continuously extends to the pair of connecting portions 14 and 14 in a direction (horizontal direction in FIG. 1) orthogonal to a direction in which the connecting portions 14 and 14 extend (vertical direction in FIG. 1). 15 are provided.
The fixing portions 15 are provided in pairs on the connecting portions 14 facing each other in a direction (width direction W of the connecting portion 14 in FIG. 1) orthogonal to the cross-sectional direction (vertical direction in FIG. 1). Therefore, there are a total of two pairs (four) of fixing portions 15, and one pair of fixing portions 15 and 15 are integrally formed on both edge portions of one connecting portion 14 along the top and bottom with their side surfaces facing each other. The other pair of fixing portions 15 and 15 are provided integrally on both edge portions of the other connecting portion 14 along the top and bottom with their side surfaces facing each other.
Further, the fixing portion 15 and the connecting portion 14 have the same height, and the entire edge portion of the connecting portion 14 along the height direction is connected to the entire edge portion of the fixing portion 15 along the height direction.

また、前記断面方向（図１おいて上下方向）における固定部１５の下端と、連結部１４の下端とが等しい位置にあり、前記断面方向における固定部１５の長さ寸法Ｌ１が、湾曲部１２の頂部と変形部１３の下端部との間の距離Ｌ２と等しくなっている。つまりＬ１＝ａとすると、Ｌ１＝Ｌ２＝ａとなっている。 Further, the lower end of the fixing portion 15 and the lower end of the connecting portion 14 in the cross-sectional direction (vertical direction in FIG. 1) are at the same position, and the length dimension L1 of the fixing portion 15 in the cross-sectional direction is the bending portion 12. Is equal to the distance L2 between the top of the and the lower end of the deformable portion 13. That is, if L1=a, then L1=L2=a.

このような構成のエネルギー吸収デバイス１０は、上述したように、所定形状の平坦な鋼板を折り曲げ成形することによって一体的に形成されたものである。
すなわち、図５に示すように、エネルギー吸収デバイス１０を展開してなる展開部材１０ａは、一方の連結部１４および当該連結部１４を挟むようにして設けられた一方の一対の固定部１５，１５からなる第１長方形板部２１と、他方の連結部１４および当該連結部１４を挟むようにして設けられた他方の一対の固定部１５，１５からなる第２長方形板部２２と、長方形状に伸ばされた湾曲部１２および当該湾曲部１２を挟むようにして設けられた一対の変形部１３，１３からなる長方形板状の第３長方形板部２３とから構成されている。
第１長方形板部２１と第２長方形板部２２とは第３長方形板部２３によって接続され、展開部材１０ａは略エ字形に形成されている。 As described above, the energy absorbing device 10 having such a configuration is integrally formed by bending a flat steel plate having a predetermined shape.
That is, as shown in FIG. 5, the expansion member 10 a formed by expanding the energy absorbing device 10 is composed of one connecting portion 14 and one pair of fixing portions 15 and 15 provided so as to sandwich the connecting portion 14. A first rectangular plate portion 21, a second rectangular plate portion 22 composed of the other connecting portion 14 and the other pair of fixing portions 15 and 15 provided so as to sandwich the connecting portion 14, and a curve extending in a rectangular shape. The rectangular plate-shaped third rectangular plate portion 23 is formed by the portion 12 and the pair of deformable portions 13, 13 provided so as to sandwich the curved portion 12.
The first rectangular plate portion 21 and the second rectangular plate portion 22 are connected by the third rectangular plate portion 23, and the expansion member 10a is formed in a substantially E shape.

そして、固定部１５の長さ寸法Ｌ１（＝ａ）が、湾曲部１２の頂部と変形部１３の下端部との間の距離Ｌ２（＝ａ）と等しくなっているので、第１長方形板部２１と第２長方形板部２２との間の距離Ｌ３は、第１長方形板部２１と第２長方形板部２２のそれぞれ短辺の長さ、つまり固定部１５の長さ寸法Ｌ１の２倍の長さ２ａとなる。
したがって、図６に示すように、あるエネルギー吸収デバイス１０を展開してなる展開部材１０ａの第１長方形板部２１と第２長方形板部２２との間に、他の異なる一方のエネルギー吸収デバイス１０を展開してなる展開部材１０ａの第１長方形板部２１と他の異なる他方のエネルギー吸収デバイス１０を展開してなる展開部材１０ａの第２長方形板部２２とを並べるようにして配置し、さらに、図６において上下方向に連続して展開部材１０ａを配置するとともに、左右方向に展開部材１０ａを第１長方形板部２１の短辺（第２長方形板部２２の短辺）の長さに相当する寸法だけずらして配置することによって、展開部材１０ａを切り出すための鋼板Ｋに、当該展開部材１０ａを密に配置することができる。したがって、当該展開部材１０ａを鋼板Ｋから切り出すことによって、鋼板Ｋから効率的にエネルギー吸収デバイス１０を展開した展開部材１０ａを切り出すことができる。 Since the length dimension L1 (=a) of the fixed portion 15 is equal to the distance L2 (=a) between the top portion of the bending portion 12 and the lower end portion of the deformation portion 13, the first rectangular plate portion. The distance L3 between the first rectangular plate portion 21 and the second rectangular plate portion 22 is twice the length of the short side of each of the first rectangular plate portion 21 and the second rectangular plate portion 22, that is, twice the length dimension L1 of the fixed portion 15. The length is 2a.
Therefore, as shown in FIG. 6, another different energy absorbing device 10 is provided between the first rectangular plate portion 21 and the second rectangular plate portion 22 of the deployable member 10a obtained by deploying the certain energy absorbing device 10. The first rectangular plate portion 21 of the deploying member 10a formed by deploying and the second rectangular plate portion 22 of the deploying member 10a formed by deploying the other different energy absorbing device 10 are arranged side by side, and 6, the deploying member 10a is arranged continuously in the vertical direction, and the deploying member 10a is arranged in the left-right direction corresponding to the length of the short side of the first rectangular plate portion 21 (the short side of the second rectangular plate portion 22). By arranging them by displacing them by the size to be arranged, the expanding members 10a can be densely arranged on the steel plate K for cutting out the expanding members 10a. Therefore, by cutting the expanding member 10a from the steel plate K, the expanding member 10a having the energy absorbing device 10 efficiently expanded can be cut from the steel plate K.

このような展開部材１０ａは、図５に示すように、４つの固定部１５となる部分をそれぞれ折れ線２５で連結部１４となる部分に対して直角になるようにして折り曲げ加工するとともに、湾曲部１２となる部分を半円筒状に湾曲させるとともに、連結部１４，１４となる部分および変形部１３，１３となる部分をそれぞれ平行離間させることによって、図１に示すようなエネルギー吸収デバイス１０となる。 As shown in FIG. 5, such a developing member 10a is bent such that the portions to be the four fixing portions 15 are perpendicular to the portions to be the connecting portions 14 at the fold lines 25, and the bending portions are bent. The portion to be 12 is curved in a semi-cylindrical shape, and the portions to be the connecting portions 14 and 14 and the portions to be the deforming portions 13 and 13 are spaced apart from each other in parallel, whereby the energy absorbing device 10 as shown in FIG. 1 is obtained. ..

さらに、展開部材１０ａは、固定部１５の変形部１３側の縁と、変形部１３の縁とが交わる部分がエッジとなっておらず、円弧となっている。したがって、展開部材１０ａを折り曲げ加工することによって形成されたエネルギー吸収デバイス１０では、図１に示すように、変形部１３と固定部１５とが交わる部分が滑らかな円弧面となって、応力が集中しないようになっている。 Further, in the expanding member 10a, the portion where the edge of the fixed portion 15 on the side of the deformation portion 13 and the edge of the deformation portion 13 intersect does not form an edge, but is an arc. Therefore, in the energy absorbing device 10 formed by bending the expanding member 10a, as shown in FIG. 1, the portion where the deforming portion 13 and the fixing portion 15 intersect becomes a smooth arc surface, and stress concentrates. It is supposed not to.

図２および図３に示すように、上述したようなエネルギー吸収デバイス１０を合計で６個、耐力壁３０に取り付けることによって、エネルギー吸収デバイス付き耐力壁３１となる。なお、耐力壁３０取り付けるエネルギーデバイス１０の個数、Ｕ形部材１１および固定部１５の板厚およびその他の寸法は上記と異なっていてもよい。
耐力壁３０は、角形鋼管で形成された左右一対の柱３２，３２と、当該一対の柱３２，３２の対向する面３２ａ，３２ａのそれぞれから対となって突出して設けられ締結部３３，３３と、柱３３，３３の上端部どうしおよび下端部どうしをそれぞれ連結する横枠３５，３５とを備えている。なお、耐力壁３０はその骨組が左右一対の柱３２，３２と横枠３５，３５とによって構成されるが、当該柱３２，３２の正面側および／または背面側に面材を取り付けることで、建物の外壁面や内壁面の一部を構成してもよい。 As shown in FIGS. 2 and 3, a total of six energy absorbing devices 10 as described above are attached to the bearing wall 30 to form the bearing wall 31 with an energy absorbing device. The number of energy devices 10 attached to the bearing wall 30, the plate thicknesses of the U-shaped member 11 and the fixing portion 15 and other dimensions may be different from the above.
The load bearing wall 30 is provided with a pair of left and right columns 32, 32 formed of a rectangular steel pipe, and a pair of protruding faces 32 a, 32 a facing each other of the pair of columns 32, 32 so as to project in pairs, and fastening portions 33, 33. And the horizontal frames 35, 35 connecting the upper ends and the lower ends of the columns 33, 33, respectively. The load-bearing wall 30 has a skeleton composed of a pair of left and right columns 32, 32 and lateral frames 35, 35. By attaching a face material to the front side and/or the back side of the columns 32, 32, You may comprise a part of outer wall surface and an inner wall surface of a building.

締結部３３は、鋼板によって矩形板状に形成され、その上下方向の寸法は、エネルギー吸収デバイス１０の固定部１５の高さ寸法の略２倍の長さと略等しくなっている。また、締結部３３の左右方向の基端部は柱３２の面３２ａの両側縁部にそれぞれ溶接によって結合され、締結部３３の表面と柱３２の表面とはほぼ面一となっている。なお、締結部３３の結合は溶接だけでなく、嵌合やボルト等他の結合方法を用いてもよい。
このような締結部３３は、柱３２，３２の上下方向の中央位置、この中央位置から上下にそれぞれ所定間隔で隔てた上側位置および下側位置に、それぞれ耐力壁３０の厚さ方向に一対ずつ、左右方向に一対ずつ、合計２対（合計４枚）設けられている。 The fastening portion 33 is formed of a steel plate in a rectangular plate shape, and its vertical dimension is approximately equal to a length that is approximately twice the height dimension of the fixing portion 15 of the energy absorbing device 10. Further, the left and right base ends of the fastening portion 33 are joined to both side edges of the surface 32a of the column 32 by welding, respectively, and the surface of the fastening portion 33 and the surface of the column 32 are substantially flush with each other. The joining of the fastening portion 33 is not limited to welding, but other joining methods such as fitting and bolts may be used.
Such a fastening portion 33 is provided at a central position in the vertical direction of the columns 32, 32, and an upper position and a lower position that are vertically spaced apart from the central position by a predetermined distance, respectively, in pairs in the thickness direction of the load bearing wall 30. , A total of two pairs (four sheets in total) are provided, one pair each in the left-right direction.

また、左右一対の柱３２，３２の対向する面３２ａ，３２ａの間には、エネルギー吸収デバイス１０が合計６個、上下に配置されるとともに、前記中央位置、上側位置および下側位置に対応させて配置されている。
すなわちまず、柱３２，３２の上下方向の中央位置においては、上下一対のエネルギー吸収デバイス１０，１０がそれらのＵ形部材１１，１１の向きを互いに逆方向にして、上下に僅かな隙間をもって配置されているが、隙間がなく互いに当接されていてもよい。
また、柱３２，３２の前記中央位置から上下にそれぞれ所定間隔で隔てた上側位置および下側位置には、上下一対のエネルギー吸収デバイス１０，１０がそれらのＵ形部材１１，１１の向きを互いに逆方向にして、上下に僅かな隙間をもって配置されているが、隙間がなく互いに当接されていてもよい。上下一対のエネルギー吸収デバイス１０，１０のうち上側のエネルギー吸収デバイス１０は、その湾曲部１２を上側に向け配置され、下側のエネルギー吸収デバイス１０は、その湾曲部１２を下側に向けて配置されている。 Further, a total of six energy absorbing devices 10 are vertically arranged between the facing surfaces 32a, 32a of the pair of left and right columns 32, 32, and the energy absorbing devices 10 are made to correspond to the central position, the upper position, and the lower position. Are arranged.
That is, first, at the central position in the vertical direction of the columns 32, 32, the pair of upper and lower energy absorbing devices 10, 10 make their U-shaped members 11, 11 opposite to each other, and are arranged with a slight vertical gap. However, they may be in contact with each other without a gap.
In addition, a pair of upper and lower energy absorbing devices 10, 10 directs the U-shaped members 11, 11 from each other at upper and lower positions vertically spaced apart from the central position of the columns 32, 32 by a predetermined distance. Although they are arranged in the opposite direction with a slight gap vertically, they may be in contact with each other without a gap. The upper energy absorbing device 10 of the pair of upper and lower energy absorbing devices 10 is arranged with its curved portion 12 facing upward, and the lower energy absorbing device 10 is arranged with its curved portion 12 facing downward. Has been done.

また、図３に示すように、締結部３３，３３は柱３２の面３２ａの両側縁部からエネルギー吸収デバイス１０側に向けて延び、その先端部はエネルギー吸収デバイス１０の固定部１５，１５の基端部側に位置している。固定部１５，１５は、締結部３３，３３より内側に設けられ、固定部１５，１５の外側を向く面が締結部３３，３３の内側を向く面に当接されている。この状態で締結部３３，３３に固定部１５，１５が固定されている。この固定は、締結部３３，３３に固定部１５，１５を溶接によって固定してもよいし、ボルト止めやビスによって固定してもよい。
また、図２に示すように、柱３２，３２の中央位置、上側位置および下側位置においてそれぞれ４枚ずつ配置されている締結部３３に上下一対のエネルギー吸収デバイス１０，１０の８枚の固定部１５がそれぞれ固定されている。つまり、上下一対のエネルギー吸収デバイス１０，１０のうち上側のエネルギー吸収デバイス１０の４枚の固定部１５がそれぞれ４枚の締結部３３の略上半分に固定され、下側のエネルギー吸収デバイス１０の４枚の固定部１５がそれぞれ４枚の締結部３３の略下半分に固定されている。
なお、締結部３３を上下に分断し、分断された上側の４枚の締結部に上側のエネルギー吸収デバイス１０の４枚の固定部１５を固定し、分断された下側の４枚の締結部に下側のエネルギー吸収デバイス１０の４枚の固定部１５を固定してもよい。
また、締結部３３は、エネルギー吸収デバイス１０に対して必ずしも上下に１枚ずつ必要ではなく、上下１枚の締結部３３に、エネルギー吸収デバイス１０が上下２個以上配置されてもよい。 Further, as shown in FIG. 3, the fastening portions 33, 33 extend from both side edges of the surface 32 a of the column 32 toward the energy absorbing device 10 side, and the tips thereof are fixed to the fixing portions 15, 15 of the energy absorbing device 10. It is located on the base end side. The fixing portions 15 and 15 are provided inside the fastening portions 33 and 33, and the outer surfaces of the fixing portions 15 and 15 are in contact with the inner surfaces of the fastening portions 33 and 33. In this state, the fixing portions 15 and 15 are fixed to the fastening portions 33 and 33. For this fixing, the fixing portions 15 and 15 may be fixed to the fastening portions 33 and 33 by welding, or may be fixed by bolting or screws.
In addition, as shown in FIG. 2, eight pairs of upper and lower energy absorbing devices 10 and 10 are fixed to the fastening portions 33, which are arranged at four positions at the central position, the upper position, and the lower position of the columns 32 and 32, respectively. The parts 15 are fixed. That is, among the pair of upper and lower energy absorption devices 10, 10, the four fixing portions 15 of the upper energy absorbing device 10 are fixed to substantially the upper half of the four fastening portions 33, respectively, and the lower energy absorbing device 10 The four fixing portions 15 are fixed to substantially lower halves of the four fastening portions 33, respectively.
In addition, the fastening portion 33 is divided into upper and lower parts, and the four fixing portions 15 of the upper energy absorbing device 10 are fixed to the upper four fastening portions that are divided, and the lower four fastening portions that are divided. The four fixing portions 15 of the lower energy absorbing device 10 may be fixed to the.
Further, the fastening portions 33 do not necessarily need to be provided one above and one below the energy absorbing device 10, and two or more energy absorbing devices 10 may be arranged above and below one fastening portion 33.

また、本実施の形態では、左右一対の柱３２，３２の芯間寸法と耐力壁３０の壁高さの比率が、１：６となっており、耐力壁３０が細幅耐力壁となっているが、これより耐力壁３０を細幅に形成してもよい。この場合、左右一対の柱３２，３２の芯間寸法と耐力壁３０の壁高さの比率を、１：６以上にすればよい。なお、柱３２，３２の芯間寸法とは、柱３２が断面正方形状または断面長方形状の角形鋼管で形成されている場合、柱３２，３２の断面中心間の距離のことを言う。 Further, in the present embodiment, the ratio between the inter-center dimension of the pair of left and right columns 32, 32 and the wall height of the load bearing wall 30 is 1:6, and the load bearing wall 30 is a narrow bearing wall. However, the bearing wall 30 may be formed narrower than this. In this case, the ratio between the inter-center dimension of the pair of right and left columns 32, 32 and the wall height of the load bearing wall 30 may be set to 1:6 or more. The center-to-center dimension of the pillars 32, 32 means the distance between the cross-sectional centers of the pillars 32, 32 when the pillar 32 is formed of a rectangular steel tube having a square cross section or a rectangular cross section.

このような構成のエネルギー吸収デバイス付き耐力壁３１は、図４に示すように、上下の梁（水平構造材）３５，３５に結合される。つまり、耐力壁３０の左右一対の柱３２，３２の上下端部がそれぞれ上下の梁３５，３５に結合される。
この場合、この上下の梁３５，３５が図２に示す横枠３５を構成する。梁３５，３５はＨ形鋼や角形鋼管等の鋼材によって形成されている。 The energy absorbing device-equipped load bearing wall 31 having such a configuration is coupled to upper and lower beams (horizontal structural members) 35, 35, as shown in FIG. That is, the upper and lower ends of the pair of left and right columns 32, 32 of the load bearing wall 30 are coupled to the upper and lower beams 35, 35, respectively.
In this case, the upper and lower beams 35, 35 form the horizontal frame 35 shown in FIG. The beams 35, 35 are made of a steel material such as an H-shaped steel or a rectangular steel pipe.

上下の梁３５，３５に結合されたエネルギー吸収デバイス付き耐力壁３１に、地震等によって水平方向の外力（地震力）が作用すると、耐力壁３０が倒れるように変位する。エネルギー吸収デバイス１０の固定部１５は締結部３３によって拘束されているので、前記変位に伴ってエネルギー吸収デバイス１０の変形部１３が湾曲部１２を左右に変形させるようにして塑性変形し、これによって、外力（地震力）のエネルギーを吸収する。したがって、地震力に対してエネルギー吸収する性能を高めることができ、耐力壁３０の耐震性能を向上させることができる。 When a horizontal external force (seismic force) acts on the load bearing wall 31 with the energy absorbing device coupled to the upper and lower beams 35, 35 due to an earthquake or the like, the load bearing wall 30 is displaced so as to fall. Since the fixing portion 15 of the energy absorbing device 10 is restrained by the fastening portion 33, the deforming portion 13 of the energy absorbing device 10 plastically deforms the bending portion 12 to the left and right in accordance with the displacement, and , Absorbs the energy of external force (earthquake force). Therefore, the performance of absorbing energy against the seismic force can be enhanced, and the seismic performance of the bearing wall 30 can be improved.

本実施の形態によれば、エネルギー吸収デバイス１０の固定部１５が連結部１４からそれぞれ、当該連結部１４が延びる方向と直交する方向に連続して延び、さらに固定部１５は連結部１４にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられ、耐力壁３０は、一対の柱３２，３２と、当該一対の柱３２，３２の対向する面３２ａ，３２ａのそれぞれから対となって突出して設けられ締結部３３，３３とを備え、エネルギー吸収デバイス１０が一対の柱３２，３２の間に配置され、１つのエネルギー吸収デバイス１０の４つの固定部１５がそれぞれ４つの締結部３３に固定されることによって、エネルギー吸収デバイス１０の固定部１５，１５が締結部３３，３３を介して一対の柱３２，３２に間接的に固定されるので、耐力壁３０を構成する柱３２，３２の面外局所変形を抑制できる。つまり、締結部３３，３３は、柱３２の面３２ａの中央部に固定されておらず、面３２ａの両側縁部に固定されているので、柱３２，３２の面３２ａ，３２ａの面外局所変形を抑制できる。
したがって、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁３０としての剛性を確保することが可能となり、合理的にエネルギー吸収デバイス１０のエネルギー吸収性能を発揮できる。 According to the present embodiment, the fixing portion 15 of the energy absorbing device 10 extends continuously from the connecting portion 14 in the direction orthogonal to the direction in which the connecting portion 14 extends, and the fixing portion 15 further connects to the connecting portion 14. A pair of bearing walls 30 are provided so as to face each other in a direction orthogonal to the cross-sectional direction so as to be spaced apart from each other, and the load bearing walls 30 form a pair from the pair of columns 32, 32 and the facing surfaces 32a, 32a of the pair of columns 32, 32 respectively. The energy absorbing device 10 is disposed between the pair of columns 32, 32, and the four fixing portions 15 of one energy absorbing device 10 are respectively four fastening portions 33. Since the fixing portions 15 and 15 of the energy absorbing device 10 are indirectly fixed to the pair of columns 32 and 32 via the fastening portions 33 and 33 by being fixed to the columns 32 and 32, which constitute the load bearing wall 30, Out-of-plane local deformation of 32 can be suppressed. That is, since the fastening portions 33, 33 are not fixed to the central portion of the surface 32a of the pillar 32 but are fixed to both side edge portions of the surface 32a, the surface 32a of the pillar 32, 32a outside the surface of the surface 32a. Deformation can be suppressed.
Therefore, the rigidity of the load bearing wall 30 can be secured without increasing the plate thickness of the peripheral constituent members, increasing the number of parts, and increasing the wall weight, and the energy absorbing device 10 can be rationalized. The energy absorption performance of can be demonstrated.

また、左右一対の柱３２，３２の芯間寸法と耐力壁３０の壁高さの比率を、１：６以上とすることによって、耐力壁３０が細幅耐力壁となり、当該細幅耐力壁においても高剛性を発揮し、合理的にエネルギー吸収デバイスのエネルギー吸収性能を発揮できる。
また、締結部３３，３３の左右方向の長さを調整することによって、エネルギー吸収デバイス付き耐力壁３１の壁幅を調整できる。
さらに、締結部３３は長方形板状に形成され、その表面が柱３２の表面と面一となっており、エネルギー吸収デバイス１０は締結部３３，３３の内側に配置されているので、当該柱３２，３２の正面側および／または背面側に面材を取り付けても、締結部３３およびエネルギー吸収デバイス１０が面材の邪魔になることがない。 Further, by setting the ratio of the center-to-center dimension of the pair of left and right columns 32, 32 and the wall height of the load bearing wall 30 to be 1:6 or more, the load bearing wall 30 becomes a narrow bearing wall, and in the narrow bearing wall, Also exhibits high rigidity and can reasonably exhibit the energy absorption performance of the energy absorption device.
In addition, the wall width of the energy resistant device-equipped load bearing wall 31 can be adjusted by adjusting the left and right lengths of the fastening portions 33, 33.
Further, the fastening portion 33 is formed in a rectangular plate shape, the surface thereof is flush with the surface of the column 32, and the energy absorbing device 10 is arranged inside the fastening portions 33, 33, so that the column 32 concerned. Even if a face material is attached to the front surface side and/or the back surface side of 32, 32, the fastening portion 33 and the energy absorbing device 10 do not interfere with the face material.

図７〜図９はそれぞれ第１の実施の形態のエネルギー吸収デバイス付き耐力壁３１の変形例を示す平断面図である。なお、第１の実施の形態と同一構成には同一符号を付してその説明を省略する。
図７は第１変形例を示す。第１の実施の形態では、エネルギー吸収デバイス１０の固定部１５，１５を耐力壁３０の締結部３３，３３の内面に固定しているのに対し、第１の変形例ではエネルギー吸収デバイス１０の固定部１５，１５を耐力壁３０の締結部３３，３３の外面に固定している。
図８は第２変形例を示す。第１の実施の形態では、耐力壁３０において、締結部３３，３３の基端部を柱３２，３２の対向する面３２ａ，３２ａの両側縁部に固定しているのに対し、第２変形例では、締結部３３，３３の基端部を柱３２，３２の外側を向く側面３２ｂ，３２ｂに固定している。この固定は溶接によって行ってもよいし、ボルト止めによって行ってもよい。
図９は第３変形例を示す。この第３変形例では、第１変形例と同様に、エネルギー吸収デバイス１０の固定部１５，１５を耐力壁３０の締結部３３，３３の外面に固定しているとともに、第２変形例と同様に、締結部３３，３３の基端部を柱３２，３２の外側を向く側面３２ｂ，３２ｂに固定している。
このような第１〜第３変形例においても、第１の実施の形態と同様の効果を得ることができる。 7 to 9 are plan sectional views showing modifications of the load bearing wall 31 with the energy absorbing device according to the first embodiment. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
FIG. 7 shows a first modification. In the first embodiment, the fixing portions 15, 15 of the energy absorbing device 10 are fixed to the inner surfaces of the fastening portions 33, 33 of the load bearing wall 30, whereas in the first modified example, the energy absorbing device 10 is fixed. The fixing portions 15 and 15 are fixed to the outer surfaces of the fastening portions 33 and 33 of the load bearing wall 30.
FIG. 8 shows a second modification. In the first embodiment, in the load bearing wall 30, the base end portions of the fastening portions 33, 33 are fixed to both side edge portions of the facing surfaces 32a, 32a of the columns 32, 32, whereas the second modification In the example, the base end portions of the fastening portions 33, 33 are fixed to the side surfaces 32b, 32b facing the outside of the columns 32, 32. This fixing may be performed by welding or bolting.
FIG. 9 shows a third modification. In this third modified example, as in the first modified example, the fixing parts 15, 15 of the energy absorbing device 10 are fixed to the outer surfaces of the fastening parts 33, 33 of the load bearing wall 30, and the same as the second modified example. In addition, the base end portions of the fastening portions 33, 33 are fixed to the side surfaces 32b, 32b facing the outside of the columns 32, 32.
Also in such first to third modified examples, the same effect as that of the first embodiment can be obtained.

（第２の実施の形態）
図１０および図１１は第２の実施の形態を示すもので、図１０はエネルギー吸収デバイス１０が設けられた耐力壁３０を示す斜視図、図１１は図１０におけるＡ−Ａ線断面図である。
本実施の形態が第１の実施の形態と異なる点は、第１の実施の形態ではエネルギー吸収デバイス１０を、締結部３３を介して耐力壁３０に間接的に取り付けたのに対し、本実施の形態では、エネルギー吸収デバイス１０を耐力壁３０に直接取り付けた点であるので、以下ではこの点について説明し、第１の実施の形態と同一構成には同一符号を付してその説明を省略することもある。 (Second embodiment)
10 and 11 show the second embodiment. FIG. 10 is a perspective view showing a load bearing wall 30 provided with the energy absorbing device 10, and FIG. 11 is a sectional view taken along the line AA in FIG. ..
The present embodiment is different from the first embodiment in that the energy absorption device 10 is indirectly attached to the bearing wall 30 via the fastening portion 33 in the first embodiment, whereas the present embodiment is different from the first embodiment. In this embodiment, since the energy absorbing device 10 is directly attached to the load bearing wall 30, this point will be described below, and the same components as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted. There are also things to do.

図１０および図１１に示すように、本実施の形態では、上述したようなエネルギー吸収デバイス１０を合計で６個、耐力壁３０に取り付けることによって、エネルギー吸収デバイス付き耐力壁３１となる。
耐力壁３０は、第１の実施の形態と同様に、角形鋼管で形成された左右一対の柱３２，３２を備えているが、第１の実施の形態のような締結部３３，３３は備えていない。また、柱３２，３２の離間距離は、第１の実施の形態に比して短くなっている。このため、第１の実施の形態より細幅の細幅耐力壁となっている。なお、エネルギー吸収デバイス１０の個数は必ずしも６個でなくてもよく、上下でバランスが取れるよう偶数個設置すればよい。 As shown in FIGS. 10 and 11, in the present embodiment, a total of six energy absorbing devices 10 as described above are attached to the bearing wall 30 to form the bearing wall 31 with an energy absorbing device.
The load bearing wall 30 is provided with a pair of left and right columns 32, 32 formed of a rectangular steel pipe as in the first embodiment, but is provided with the fastening portions 33, 33 as in the first embodiment. Not not. Further, the distance between the columns 32, 32 is shorter than that in the first embodiment. Therefore, the narrow bearing wall is narrower than that of the first embodiment. The number of energy absorbing devices 10 does not necessarily have to be six, and an even number may be provided so that the energy absorption devices 10 are vertically balanced.

また、左右一対の柱３２，３２の対向する面３２ａ，３２ａの間には、エネルギー吸収デバイス１０が合計６個、上下に配置されている。
すなわち、第１の実施の形態と同様に、柱３２，３２の上下方向の中央位置においては、上下一対のエネルギー吸収デバイス１０，１０がそれらのＵ形部材１１，１１の向きを互いに逆方向にして、上下に僅かな隙間をもって配置され、また、柱３２，３２の前記中央位置から上下にそれぞれ所定間隔で隔てた上側位置および下側位置には、上下一対のエネルギー吸収デバイス１０，１０がそれらのＵ形部材１１，１１の向きを互いに逆方向にして、上下に僅かな隙間をもって配置されている。
上下一対のエネルギー吸収デバイス１０，１０のうち上側のエネルギー吸収デバイス１０は、その湾曲部１２を上側に向け配置され、下側のエネルギー吸収デバイス１０は、その湾曲部１２を下側に向けて配置されている。 Further, a total of six energy absorbing devices 10 are vertically arranged between the facing surfaces 32a and 32a of the pair of left and right columns 32 and 32.
That is, as in the first embodiment, at the vertical center position of the columns 32, 32, the pair of upper and lower energy absorbing devices 10, 10 make the directions of the U-shaped members 11, 11 opposite to each other. And a pair of upper and lower energy absorbing devices 10 and 10 are respectively arranged at upper and lower positions which are arranged vertically with a slight gap therebetween and are vertically separated from each other by a predetermined distance from the central position of the columns 32 and 32. The U-shaped members 11 and 11 are arranged so that the directions thereof are opposite to each other, and they are arranged with a slight gap vertically.
The upper energy absorbing device 10 of the pair of upper and lower energy absorbing devices 10 is arranged with its curved portion 12 facing upward, and the lower energy absorbing device 10 is arranged with its curved portion 12 facing downward. Has been done.

また、図１１に示すように、エネルギー吸収デバイス１０の一方の前後一対の固定部１５，１５の先端部は、一方の柱３２の面３２ａの両側縁部に当接されたうえで、溶接によって固定され、他方の前後一対の固定部１５，１５の先端部は、他方の柱３２の面３２ａの両側縁部に当接されたうえで、溶接によって固定されている。また、固定部１５の外側を向く面は柱３２の外側を向く側面３２ｂとほぼ面一となっている。 Further, as shown in FIG. 11, the front end portions of the pair of front and rear fixing portions 15, 15 of the energy absorbing device 10 are brought into contact with both side edge portions of the surface 32 a of the one column 32 and then welded. The front end portions of the other pair of front and rear fixing portions 15, 15 that are fixed are brought into contact with both side edge portions of the surface 32a of the other column 32 and then fixed by welding. The surface of the fixed portion 15 that faces the outside is substantially flush with the side surface 32 b of the pillar 32 that faces the outside.

本実施の形態によれば、エネルギー吸収デバイス１０の固定部１５が連結部１４からそれぞれ、当該連結部１４が延びる方向と直交する方向に連続して延び、さらに固定部１５は連結部１４にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられ、耐力壁３０は、一対の柱３２，３２を備え、エネルギー吸収デバイス１０が一対の前記柱３２，３２の間に配置され、前記エネルギー吸収デバイス１０の一方側の一対の前記固定部１５，１５が一方の柱３２の対向する面３２ａに固定され、他方側の一対の前記固定部１５，１５が他方の柱３２の対向する面３２ａに固定されることによって、エネルギー吸収デバイス１０の固定部１５が一対の柱３２，３２に直接固定されるので、耐力壁３０を構成する柱の面外局所変形を抑制できる。つまり、固定部１５，１５は、柱３２の面３２ａの中央部に固定されておらず、面３２ａの両側縁部に固定されているので、柱３２，３２の面３２ａ，３２ａの面外局所変形を抑制できる。したがって、周辺構成部材の板厚を大きくしたり、部品点数を増やしたり、さらには壁重量を大きくすることなく、耐力壁３０としての剛性を確保することが可能となり、合理的にエネルギー吸収デバイス１０のエネルギー吸収性能を発揮できる。 According to the present embodiment, the fixing portion 15 of the energy absorbing device 10 extends continuously from the connecting portion 14 in the direction orthogonal to the direction in which the connecting portion 14 extends, and the fixing portion 15 further connects to the connecting portion 14. The pair of bearing walls 30 are provided so as to face each other in a direction orthogonal to the cross-sectional direction so as to be spaced apart from each other, the load bearing wall 30 includes a pair of columns 32, 32, and the energy absorbing device 10 is disposed between the pair of columns 32, 32. The pair of fixing portions 15 and 15 on one side of the energy absorbing device 10 are fixed to the facing surfaces 32 a of the one column 32, and the pair of fixing portions 15 and 15 on the other side face the opposite surface of the other column 32. By being fixed to 32a, the fixing portion 15 of the energy absorbing device 10 is directly fixed to the pair of columns 32, 32, so that the out-of-plane local deformation of the columns forming the load bearing wall 30 can be suppressed. That is, since the fixing portions 15 and 15 are not fixed to the central portion of the surface 32a of the pillar 32 but are fixed to both side edge portions of the surface 32a, the surfaces 32a and 32a of the pillars 32 and 32 are locally out-of-plane. Deformation can be suppressed. Therefore, the rigidity of the load bearing wall 30 can be secured without increasing the plate thickness of the peripheral constituent members, increasing the number of parts, and increasing the wall weight, and the energy absorbing device 10 can be rationalized. The energy absorption performance of can be demonstrated.

図１２は第２の実施の形態のエネルギー吸収デバイス付き耐力壁３１の変形例を示す平断面図である。なお、第２の実施の形態と同一構成には同一符号を付してその説明を省略する。
第２の実施の形態では、エネルギー吸収デバイス１０の固定部１５，１５の先端部を柱３２，３２の対向する面３２ａ，３２ａの両側縁部に固定しているのに対し、変形例では、固定部１５，１５の左右方向の長さを長くしたうえで、当該固定部１５，１５の先端部を柱３２，３２の外側を向く側面３２ｂ，３２ｂに固定している。この固定は溶接によって行ってもよいし、ボルト止めによって行ってもよい。
このような変形例においても、第２の実施の形態と同様の効果を得ることができる。 FIG. 12 is a plan sectional view showing a modified example of the load bearing wall 31 with the energy absorbing device according to the second embodiment. The same components as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.
In the second embodiment, the tip ends of the fixing portions 15 and 15 of the energy absorbing device 10 are fixed to the opposite side edges of the surfaces 32a and 32a of the columns 32 and 32, whereas in the modification, The lengths of the fixing portions 15 and 15 in the left-right direction are lengthened, and then the tips of the fixing portions 15 and 15 are fixed to the side surfaces 32b and 32b facing the outside of the columns 32 and 32, respectively. This fixing may be performed by welding or bolting.
Even in such a modification, the same effect as that of the second embodiment can be obtained.

次に、本発明に係るエネルギー吸収デバイス１０を設けた耐力壁３０の構造性能について、数値実験（有限要素解析）の結果に基づき説明する。
実際の耐力壁を模擬したＦＥＡ（有限要素解析）を実施し、先行技術に対する優位性（高剛性化）を発揮することを確認した。
ここでは、図１３に示すように、本発明に係る耐力壁は、左右一対の角形鋼管柱３２，３２を有し、幅が４５５ｍｍ、高さが２６４０ｍｍであり、エネルギー吸収デバイス１０を合計６つ設置したモデルを作成した。エネルギー吸収デバイス１０は、固定部１５を締結部３３を介して耐力壁３０に間接的に取り付けた。 Next, the structural performance of the load bearing wall 30 provided with the energy absorbing device 10 according to the present invention will be described based on the results of a numerical experiment (finite element analysis).
FEA (finite element analysis) simulating an actual bearing wall was carried out, and it was confirmed that the FEA exhibited superiority (higher rigidity) to the prior art.
Here, as shown in FIG. 13, the load bearing wall according to the present invention has a pair of right and left rectangular steel tube columns 32, 32, and has a width of 455 mm and a height of 2640 mm, and a total of six energy absorbing devices 10. The installed model was created. In the energy absorbing device 10, the fixing portion 15 is indirectly attached to the load bearing wall 30 via the fastening portion 33.

これに対し、図１４に示すように、既往技術（従来の耐力壁）は、左右一対の角形鋼管柱３２，３２を有し、対向する対向面の中央部からエネルギー吸収デバイス４２を締結するフレーム板４０，４０が延びており、柱３２側と逆側の端部にフランジ４１を介してＵ形のエネルギー吸収デバイス４２を締結している。フレーム板４０，４０は柱３２，３２の対向する面の中央部から延びている。 On the other hand, as shown in FIG. 14, the conventional technology (conventional load bearing wall) has a pair of right and left rectangular steel tube columns 32, 32, and is a frame for fastening the energy absorbing device 42 from the central portion of the facing opposing surfaces. The plates 40, 40 extend, and a U-shaped energy absorbing device 42 is fastened to an end portion on the side opposite to the column 32 side via a flange 41. The frame plates 40, 40 extend from the central portions of the facing surfaces of the columns 32, 32.

そして、図１５に示すように、解析モデルに水平力Ｑを付与した。図１６に、解析結果から得られた水平力Ｑ−層間変形量Δ関係を示し、図１７および図１８に、既往技術と本発明におけるＭｉｓｅｓ応力コンタ図を示す。なお、当該コンタ図においては、黒い部分が塑性化した部分である。 Then, as shown in FIG. 15, a horizontal force Q was applied to the analytical model. FIG. 16 shows the relationship between the horizontal force Q and the interlayer deformation amount Δ obtained from the analysis result, and FIGS. 17 and 18 show the Mises stress contour diagrams in the conventional technique and the present invention. In the contour diagram, the black portion is a plasticized portion.

図１６に示すように、既往技術の弾性剛性と本発明を比較すると、１．９倍剛性が向上し、本発明が高剛性であることが分かる。
また、図１７に示すように、既往技術の場合は鋼管柱の局所面外変形が顕著に生じ、エネルギー吸収デバイスの変形も小さいのに対し、図１８に示すように、本発明の場合は、鋼管柱の局所面外変形が抑制され、エネルギー吸収デバイスの変形も大きいのが分かる。このように、本発明では、鋼管柱の面外局所変形を抑制し、細幅の耐力壁においても高剛性を実現し、エネルギー吸収デバイスを狙い通り塑性化することが可能である。 As shown in FIG. 16, when comparing the elastic rigidity of the existing technology with the present invention, the rigidity is improved by 1.9 times, and it is understood that the present invention has high rigidity.
Further, as shown in FIG. 17, in the case of the prior art, the local out-of-plane deformation of the steel tube column occurs remarkably, and the deformation of the energy absorbing device is small, whereas as shown in FIG. 18, in the case of the present invention, It can be seen that the local out-of-plane deformation of the steel tube column is suppressed and the deformation of the energy absorption device is large. As described above, according to the present invention, it is possible to suppress the out-of-plane local deformation of the steel pipe column, realize high rigidity even in a narrow bearing wall, and plasticize the energy absorbing device as intended.

１０ エネルギー吸収デバイス
１１ Ｕ形部材
１２ 湾曲部
１３ 変形部
１４ 連結部
１５ 固定部
３０ 耐力壁
３１ エネルギー吸収デバイス付き耐力壁
３２ 柱
３３ 締結部 10 Energy Absorption Device 11 U-Shaped Member 12 Curved Part 13 Deformation Part 14 Connecting Part 15 Fixing Part 30 Bearing Wall 31 Bearing Wall with Energy Absorbing Device 32 Column 33 Fastening Part

Claims (5)

耐力壁に設けられるエネルギー吸収デバイスであって、
断面方向で略Ｕ字形状に形成されたＵ形部材を備え、
前記Ｕ形部材は、湾曲部と、この湾曲部の両端部からそれぞれ連続して延びる一対の変形部と、当該一対の変形部の端部からそれぞれ連続して延びる一対の連結部とを備え、
一対の前記連結部に、それぞれ当該連結部が延びる方向と直交する方向に連続して延びる固定部が設けられ、
前記固定部は前記連結部にそれぞれ前記断面方向と直交する方向に対向離間して一対ずつ設けられて、前記耐力壁に直接または間接的に固定されることを特徴とするエネルギー吸収デバイス。 An energy absorbing device provided on a load bearing wall,
A U-shaped member formed in a substantially U-shape in the cross-sectional direction,
The U-shaped member includes a curved portion, a pair of deformed portions that continuously extend from both ends of the curved portion, and a pair of connecting portions that continuously extends from end portions of the pair of deformed portions,
Each of the pair of connecting portions is provided with a fixing portion that continuously extends in a direction orthogonal to the extending direction of the connecting portion,
The energy absorbing device according to claim 1, wherein the fixing portions are provided in pairs in the connecting portion so as to face each other in a direction orthogonal to the cross-sectional direction, and are fixed directly or indirectly to the load bearing wall. 前記断面方向における前記固定部の端と、前記連結部の端とが等しい位置にあり、
前記断面方向における前記固定部の長さ寸法が、前記湾曲部の頂部と前記変形部の端部との間の距離と等しくなっていることを特徴とする請求項１に記載のエネルギー吸収デバイス。 The end of the fixing portion in the cross-sectional direction and the end of the connecting portion are at the same position,
The energy absorbing device according to claim 1, wherein a length dimension of the fixing portion in the cross-sectional direction is equal to a distance between a top portion of the bending portion and an end portion of the deforming portion. 請求項１または２に記載のエネルギー吸収デバイスと、耐力壁とを備えたエネルギー吸収デバイス付き耐力壁であって、
前記耐力壁は、一対の柱と、当該一対の柱の対向する面のそれぞれから対となって突出して設けられ締結部とを備え、
前記エネルギー吸収デバイスが一対の前記柱の間に配置され、当該エネルギー吸収デバイスの４つの前記固定部がそれぞれ４つの前記締結部に固定されていることを特徴とするエネルギー吸収デバイス付き耐力壁。 A load bearing wall with an energy absorbing device comprising the energy absorbing device according to claim 1 or 2, and a load bearing wall,
The load bearing wall includes a pair of columns and a fastening portion that is provided so as to project in pairs from each of the facing surfaces of the pair of columns,
A load bearing wall with an energy absorbing device, wherein the energy absorbing device is arranged between a pair of the pillars, and the four fixing portions of the energy absorbing device are fixed to the four fastening portions, respectively. 請求項１または２に記載のエネルギー吸収デバイスと、耐力壁とを備えたエネルギー吸収デバイス付き耐力壁であって、
前記耐力壁は対向する面を有する一対の柱を備え、
前記エネルギー吸収デバイスが一対の前記柱の間に配置され、
前記エネルギー吸収デバイスの一方側の一対の前記固定部が一方の柱の対向する面に固定され、他方側の一対の前記固定部が他方の柱の対向する面に固定されていることを特徴とするエネルギー吸収デバイス付き耐力壁。 A load bearing wall with an energy absorbing device comprising the energy absorbing device according to claim 1 or 2, and a load bearing wall,
The load bearing wall comprises a pair of pillars having opposite surfaces,
The energy absorbing device is disposed between the pair of pillars,
The pair of fixing portions on one side of the energy absorbing device are fixed to the facing surfaces of one pillar, and the pair of fixing portions on the other side are fixed to the facing surfaces of the other pillar, Load-bearing wall with energy absorbing device. 前記一対の柱の芯間寸法と前記耐力壁の壁高さの比率が、１：６以上となっていることを特徴とする請求項３または４に記載のエネルギー吸収デバイス付き耐力壁。 The load bearing wall with an energy absorbing device according to claim 3 or 4, wherein a ratio between a center-to-center dimension of the pair of columns and a wall height of the load bearing wall is 1:6 or more.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010500493A (en) * 2006-08-07 2010-01-07 プレストレスト ティンバー リミテッド Engineered wood building system for high performance structures.
JP2017061808A (en) * 2015-09-25 2017-03-30 新日鐵住金株式会社 Earthquake resistant wall structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010500493A (en) * 2006-08-07 2010-01-07 プレストレスト ティンバー リミテッド Engineered wood building system for high performance structures.
JP2017061808A (en) * 2015-09-25 2017-03-30 新日鐵住金株式会社 Earthquake resistant wall structure

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