JP3167210U - Anti-earthquake reinforcement hardware - Google Patents

Anti-earthquake reinforcement hardware Download PDF

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JP3167210U
JP3167210U JP2010007561U JP2010007561U JP3167210U JP 3167210 U JP3167210 U JP 3167210U JP 2010007561 U JP2010007561 U JP 2010007561U JP 2010007561 U JP2010007561 U JP 2010007561U JP 3167210 U JP3167210 U JP 3167210U
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建二 金井
建二 金井
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株式会社住宅構造研究所
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【課題】天井裏や床下へ深く手を差し入れたり、工具を持ち込んだりしなくても取付けることができて、壁フレーム構造の内隅部を簡単に補強できると共に、壁フレーム構造の対角に位置するこれらの金物をターンバックルで結合し緊締することにより、壁フレーム構造の地震対策補強を達成する地震対策補強金物を提供する。【解決手段】補強金具7a、7b、7eとターンバックル8a、8bを用いる。補強金具7a、7b、7eは、全体が長方形を基本とした金物であって、長方形をした金属板の隣り合う2辺を立ち上げて縦材3a、3bへの取付け部及び横材4、5への取付け部とする。長辺の長さは通常、天井裏、床下の双方に兼用できる長さとする。壁フレーム構造1の対角に位置する補強金具7a、7b、7e同士をターンバックル8a,8bで結合し、緊締する。【選択図】図1PROBLEM TO BE SOLVED: To install without deeply inserting a hand under the ceiling or under the floor or bringing in a tool, an inner corner portion of a wall frame structure can be easily reinforced, and the wall frame structure is located diagonally. By connecting and tightening these hardware with a turnbuckle, the earthquake countermeasure reinforcement hardware that achieves the earthquake countermeasure reinforcement of the wall frame structure is provided. SOLUTION: Reinforcing metal fittings 7a, 7b, 7e and turnbuckles 8a, 8b are used. The reinforcing metal fittings 7a, 7b, and 7e are metal fittings based on a rectangle as a whole, and the two adjacent sides of the rectangular metal plate are raised to be attached to the vertical members 3a and 3b and the horizontal members 4, 5 It is used as a mounting part for. The length of the long side is usually a length that can be used both under the ceiling and under the floor. Reinforcing metal fittings 7a, 7b, 7e located diagonally of the wall frame structure 1 are connected to each other by turnbuckles 8a, 8b and tightened. [Selection diagram] Fig. 1

Description

この考案は、既存建物において、縦材と横材とからなる壁フレーム構造を地震対策として補強するための金物とその金物を用いた地震対策として補強された壁フレームの構造に関する。   The present invention relates to a hardware for reinforcing a wall frame structure composed of vertical members and cross members as an earthquake countermeasure in an existing building, and a wall frame structure reinforced as an earthquake countermeasure using the hardware.

既存木造住宅を耐震性についてみると、耐力壁が不足しているとか、柱頭・柱脚が横材や縦材から引き抜かれてしまう等の不安がある。
耐力壁不足に対する木造住宅の壁補強は、合板や石膏ボードなどの面材を張り付けた壁補強(例えば特許文献1,2)や、筋かいによる壁補強(例えば、特許文献3,4)が一般的である。住宅にこれらの補強を施すと、地震対策として効果を期待できる。
Looking at earthquake resistance of existing wooden houses, there are concerns that the bearing walls are insufficient and that the capital and column bases are pulled out from the horizontal and vertical members.
The wall reinforcement of wooden houses against the shortage of bearing walls is generally performed by wall reinforcement (for example, Patent Documents 1 and 2) attached with face materials such as plywood and gypsum board, and wall reinforcement by bracing (for example, Patent Documents 3 and 4). Is. If these reinforcements are applied to a house, it can be expected to be effective as an earthquake countermeasure.

壁フレーム構造に面材を張り付ける場合、面材を縦材(下部の横材)から両側の縦材及び横材(上部の横材)に至る全体に取り付けると壁基準耐力5.2kN/m程度となるが、面材を全体に張設するには内壁材に加えて床や天井まで解体する必要があり、短期間、小規模工事を求められる既存住宅の地震対策施工に向かない面がある。また、面材を壁フレーム構造の床から天井までの間で両側の縦材に張設すると壁基準耐力は2.5kN/mとであるが、内壁を壊す程度で床や天井を壊すまでは至らない。しかし、天井裏が深い場合には作業をしやすくするために天井を壊わさねばならないこともある。   When attaching a face material to a wall frame structure, if the face material is attached from the vertical material (lower cross member) to the vertical members on both sides and the horizontal member (upper cross member), the wall standard strength is 5.2 kN / m. However, it is necessary to disassemble the floor and ceiling in addition to the inner wall material in order to stretch the face material as a whole, and there are aspects that are not suitable for earthquake countermeasure construction of existing houses that require small-scale construction for a short period of time. . In addition, when the face material is stretched on the vertical members on both sides between the floor and the ceiling of the wall frame structure, the wall standard strength is 2.5 kN / m, but until the floor and ceiling are broken to the extent that the inner wall is broken. Absent. However, if the ceiling is deep, you may have to break the ceiling to make it easier to work.

壁フレーム構造の補強は筋かいによっても可能である。30×90mmの筋かい材を用いると2.4kN/m程度の強度を得られるが、筋かい材は端部を剛性の高い接合金物(例えば、特許文献5,6)で補強している。この施工は天井裏寸法や床下寸法が大きな場合には作業が極めて困難である。   The wall frame structure can also be reinforced by braces. When a brace material of 30 × 90 mm is used, a strength of about 2.4 kN / m can be obtained, but the brace material is reinforced at its end with a highly rigid joint metal (for example, Patent Documents 5 and 6). This construction is extremely difficult when the dimensions of the ceiling and the floor are large.

特開2004−263500号公報JP 2004-263500 A 特開2005−105793号公報JP 2005-105793 A 特開平9−209581号公報Japanese Patent Laid-Open No. 9-209581 登録実用新案第3015821号公報Registered Utility Model No. 3015821 特開平8−319671号公報JP-A-8-319671 特開平8−120777号公報JP-A-8-120777

この考案は、天井裏や床下へ深く手を差し入れたり、見えない箇所に工具を当てなくても取り付け作業が可能であって壁フレーム構造の内隅部を簡単に補強できると共に、壁フレーム構造の対角に位置するこれらの金物をターンバックルで結合し緊締することにより、壁フレーム構造の地震対策補強を達成できる地震対策補強金物の提供を課題とする。   This device can be installed without inserting a hand deeply into the back of the ceiling or under the floor, or by applying a tool to an invisible part, and can easily reinforce the inner corner of the wall frame structure. An object of the present invention is to provide an anti-earthquake reinforcement hardware that can achieve anti-earthquake reinforcement of the wall frame structure by joining and tightening these diagonally located hardware with a turnbuckle.

この考案の地震対策補強金物は補強金具とターンバックルを用いる。
補強金具は、全体が長方形を基本とした金物であって、長方形をした金属板の隣り合う2辺を同じ方向に立ち上げて縦材取付け部及び横材取付け部としてある。壁フレーム構造の天井裏に位置する内隅に使用するものでは、金物の長辺を壁フレーム構造の天井裏深さの寸法とほぼ同じかこの寸法よりも長くし、床下に位置する内隅に使用するものでは、金物の長辺を壁フレーム構造の床下深さの寸法と同じかこの寸法よりも長くしてある。長辺の長さは通常、天井裏、床下の双方に兼用できる長さとする。
The anti-earthquake reinforcement hardware of this device uses reinforcing brackets and turnbuckles.
The reinforcing metal fitting is a hardware based on a rectangle as a whole, and two adjacent sides of a rectangular metal plate are raised in the same direction to serve as a vertical member attachment portion and a transverse member attachment portion. For the inner corner located on the ceiling of the wall frame structure, the long side of the hardware should be approximately the same as or longer than the dimension of the ceiling depth of the wall frame structure, and the inner corner located under the floor. When used, the long side of the hardware is the same as or longer than the dimension of the depth under the floor of the wall frame structure. The length of the long side is usually a length that can be used both for the ceiling and under the floor.

補強金具は、大きな地震力に対しては塑性変形をして地震エネルギーを吸収するが、中程度の地震力では弾性的な変形にとどまる鋼板製とし、曲げ強度を抑え、縦材や横材などが脆性的な破壊を起こさないようにする。具体的には、取付け状態において金具に対し圧縮方向から大きな地震力が作用して、強いせん断力を受けた場合は、しわがよるような座屈(以下面座屈)を起こすように鋼板の面積と板厚とが調整される。   Reinforcing brackets are made of steel plate that plastically deforms and absorbs seismic energy for large seismic forces, but is made of a steel plate that stays elastically deformed for moderate seismic forces, suppressing bending strength, vertical materials, cross members, etc. To prevent brittle fracture. Specifically, when a large seismic force acts on the metal fitting from the compression direction in the mounted state and a strong shear force is applied, the steel plate is bent so as to cause wrinkling (hereinafter referred to as surface buckling). Area and plate thickness are adjusted.

この補強金具は、持ち運びや取り付けの際に扱いやすいように、横材取付け部と反対側に把持用孔を有する。また、羽子板ボルトの羽子板部を固定するための貫通孔を有する。貫通孔は、補強金具上に想定する壁フレーム構造の対角線相当の線上に配置する。
ターンバックルは壁フレーム構造において対角にある少なくとも一組の補強金具同士を結合して筋かい材の機能を発揮させる。
This reinforcing metal fitting has a gripping hole on the side opposite to the cross member attaching portion so that it is easy to carry and attach. Moreover, it has a through-hole for fixing the battledore part of the battledore bolt. The through hole is arranged on a line corresponding to a diagonal line of the wall frame structure assumed on the reinforcing metal fitting.
The turnbuckle joins at least one pair of reinforcing metal fittings diagonally in the wall frame structure to exert the function of the brace.

この考案の地震対策補強金物によれば、床や天井を壊すことなく壁フレーム構造の接合箇所を補強することができる。このため、地震対策の補強工事を安価に施工することができる。
補強金具により壁フレーム構造における縦材の引抜き耐力が増強される。補強金具による内隅箇所の補強は一種の柔構造であり、補強金具に過度の剛性があることによって、地震時に縦材と横材の接合箇所が金具によって破壊されることを防止できる。
また、ターンバックルにより壁フレーム構造に作用する水平せん断力に抵抗でき、壁フレーム構造の変形を抑制できる。
補強金具は、一端部に形成した把持用孔をつかみ、これを天井の下方から、あるいは床の上方から、天井材あるいは床材の縁と外壁との間の狭い空間へ差し込み、縦材と横材へ固定する。
According to the earthquake countermeasure reinforcement hardware of this device, the joint portion of the wall frame structure can be reinforced without breaking the floor or ceiling. For this reason, it is possible to construct earthquake-proof reinforcement work at low cost.
The pull-out strength of the vertical member in the wall frame structure is enhanced by the reinforcing metal fitting. The reinforcement of the inner corner portion by the reinforcing metal fitting is a kind of flexible structure, and the excessive rigidity of the reinforcing metal fitting can prevent the joining portion of the vertical member and the transverse member from being destroyed by the metal fitting during an earthquake.
Further, the turnbuckle can resist the horizontal shearing force acting on the wall frame structure, and can suppress the deformation of the wall frame structure.
Reinforcing metal fittings grab a gripping hole formed at one end and insert it from the bottom of the ceiling or from the top of the floor into a narrow space between the edge of the ceiling or flooring and the outer wall, Fix to the material.

壁フレーム構造の正面図。The front view of a wall frame structure. 補強金具と固定用ビスを示した斜視図。The perspective view which showed the reinforcement metal fitting and the fixing screw. 取り付け状態を示す斜視図(上部)。The perspective view (upper part) which shows an attachment state. 壁フレーム構造全体の斜視図。The perspective view of the whole wall frame structure. 本発明の壁フレームに関する荷重と変位の包絡線。Fig. 3 is an envelope of load and displacement for the wall frame of the present invention.

図1は、壁フレーム構造1を示しており、地震対策補強金物2を取り付けて補強されている。
壁フレーム構造1は、この実施例において、2本の縦材3a,3bと横材4及び横材5とで構成され、縦材3a,3bと横材4及び横材5とが接合されている。
FIG. 1 shows a wall frame structure 1, which is reinforced by attaching an anti-earthquake reinforcement hardware 2.
In this embodiment, the wall frame structure 1 is composed of two longitudinal members 3a and 3b, a transverse member 4 and a transverse member 5, and the longitudinal members 3a and 3b are joined to the transverse member 4 and the transverse member 5. Yes.

各補強金具7の取り付く壁フレーム構造1において、相互に対角位置にある補強金具7間がターンバックル8a−8bでそれぞれ結合されている。破線で示すSLは天井、同FLは床である。   In the wall frame structure 1 to which each reinforcing metal fitting 7 is attached, the reinforcing metal fittings 7 at diagonal positions are connected by turnbuckles 8a-8b. SL indicated by a broken line is a ceiling, and FL is a floor.

補強金具7は、図2に鎖線で示すように、2つの長辺A,Bと2つの短辺C,Dを有する全体としてほぼ長方形を基本とした鋼板製であって、長辺は天井裏寸法や床下寸法などより長く、隣り合う長辺Aと短辺Dの2辺が立ち上げられ、縦材取付け部10及び横材取付け部11とされており、他の長辺Bと他の短辺Cの角部は滑らかな曲線12で形成されている。そして、短辺C近くに把持用孔13と貫通孔14が形成されている。
縦材取付け部10及び横材取付け部11には、多数のビス孔15が形成され、また、横材取付け部11には複数の補強リブ16が形成されている。図2において、符号17は固定用のビスである。
As shown by a chain line in FIG. 2, the reinforcing metal fitting 7 is made of a steel plate having two long sides A and B and two short sides C and D as a whole and is basically rectangular, and the long side is the back of the ceiling. The longer side A and the shorter side D, which are longer than the dimensions and underfloor dimensions, are raised to form a vertical member mounting portion 10 and a horizontal member mounting portion 11, and the other long sides B and other short sides. A corner portion of the side C is formed by a smooth curve 12. A gripping hole 13 and a through hole 14 are formed near the short side C.
A number of screw holes 15 are formed in the vertical member mounting portion 10 and the horizontal member mounting portion 11, and a plurality of reinforcing ribs 16 are formed in the horizontal member mounting portion 11. In FIG. 2, reference numeral 17 denotes a fixing screw.

補強金具7には左右勝手があるので、壁フレーム構造1の対角位置に固定されるもの同士は同じ補強金具7の向きを変えれば利用できるが、これらと対角線が交差する対角位置のものは図2において線対称の構造とする必要がある。あるいは、表裏を違えて利用することになる。
実施例としての補強金具7は、鋼板の厚さ=2.3mm、長辺A=445mm、短辺D=200mm、縦材取付け部10及び横材取付け部11の幅=20mm、滑らかな曲線12の半径=150mmであり、貫通孔14の中心から滑らかな曲線12への距離=28mmである。
ターンバックル8は、羽子板ボルト(右ネジ)18aと羽子板ボルト(左ネジ)18b及びこれらを連結するためのバックル胴19とからなり(図1)、羽子板部20を補強金具7の貫通孔14にボルト・ナット21で結合(図3)して使用する。
Since the reinforcing bracket 7 has left and right sides, those fixed to the diagonal positions of the wall frame structure 1 can be used by changing the direction of the same reinforcing bracket 7, but those diagonally intersecting with these. Needs to have a line-symmetric structure in FIG. Or it will be used differently.
The reinforcing metal fitting 7 as an example has a thickness of a steel plate = 2.3 mm, a long side A = 445 mm, a short side D = 200 mm, a width of the vertical member attaching part 10 and the transverse member attaching part 11 = 20 mm, and a smooth curve 12. Radius = 150 mm, and distance from the center of the through hole 14 to the smooth curve 12 = 28 mm.
The turnbuckle 8 includes a wing plate bolt (right screw) 18a, a wing plate bolt (left screw) 18b, and a buckle body 19 for connecting them (FIG. 1). Used with bolts and nuts 21 (FIG. 3).

地震対策補強金物2を用いた既存住宅の補強工事は室内側から行われる。まず、補強を必要とする壁フレーム構造1が存在する箇所の内壁を取り外す。天井SL、床FLはそのままでも可とする。
ついで、壁フレーム構造1の各内隅部にそれぞれ補強金具7を取付ける。取り付けは、補強金具7の把持用孔13を利用して片手で支持し、例えば、天井面よりも低い位置から天井の縁と外壁材との間にできたスペースに補強金具7の端部を差し込み、縦材取付け部10を縦材3の側面に沿わせるとともに、横材取付け部11を横材4の下面に押し当てる。この状態を維持しながら、もう一方の手に持った工具で固定用ビス17をビス孔15から打込み、縦材取付け部10を縦材3に、横材取付け部11を横材4の下面に固定する。横材取付け部11をビス止めする際は、ビス止め工具のドライバーに補助具を用いて長寸としたビットを利用する。
Reinforcement work of existing houses using the earthquake countermeasure reinforcement hardware 2 is performed from the indoor side. First, the inner wall of the place where the wall frame structure 1 requiring reinforcement exists is removed. The ceiling SL and floor FL can be used as they are.
Next, the reinforcing bracket 7 is attached to each inner corner of the wall frame structure 1. The mounting is supported with one hand using the gripping holes 13 of the reinforcing bracket 7. For example, the end of the reinforcing bracket 7 is placed in a space between the edge of the ceiling and the outer wall material from a position lower than the ceiling surface. The longitudinal member attaching portion 10 is inserted along the side surface of the longitudinal member 3 and the transverse member attaching portion 11 is pressed against the lower surface of the transverse member 4. While maintaining this state, the fixing screw 17 is driven from the screw hole 15 with a tool held in the other hand, the vertical member mounting portion 10 is set to the vertical member 3, and the horizontal member mounting portion 11 is set to the lower surface of the horizontal member 4. Fix it. When screwing the cross member attaching portion 11, a bit that is long using an auxiliary tool is used for the screw driver.

補強金具7を床下に位置する壁フレーム構造1の内隅部に取り付けるには、天井の場合と同様に、補強金具7は把持用孔5を利用して握り、床面より上方から床の縁と外壁材との間にできたスペースを利用して差し込み、縦材取付け部10を縦材3の側面に沿わせて押し下げ、横材取付け部11を横材4の上面に押し当てる。その状態を片手で維持しながら一方の手に持った工具でビス止めする。   In order to attach the reinforcing bracket 7 to the inner corner of the wall frame structure 1 located under the floor, the reinforcing bracket 7 is gripped by using the gripping holes 5 as in the case of the ceiling, and the edge of the floor from above the floor surface. The vertical member mounting portion 10 is pushed down along the side surface of the vertical member 3 and the horizontal member mounting portion 11 is pressed against the upper surface of the horizontal member 4. While maintaining the state with one hand, screw it with a tool held in one hand.

ついで、固定された補強金具7の対角位置にあるもの同士をターンバックル8で結合する。対角位置にあるそれぞれの補強金具7に羽子板ボルト18aと18bの羽子板部20をボルト・ナット21で固定し、これらの他端同士をバックル胴19で連結する。このとき、図4のように、羽子板ボルト8の羽子板部20を取付ける貫通孔14は天井SLよりも下方にあり、また床FLよりも上部にあるから、室内側からの連結作業を楽に行える。   Next, the fixed reinforcing metal fittings 7 at the diagonal positions are joined together by the turnbuckle 8. The wing plate portions 20 of the wing plate bolts 18 a and 18 b are fixed to the respective reinforcing fittings 7 at the diagonal positions by bolts and nuts 21, and the other ends thereof are connected by the buckle body 19. At this time, as shown in FIG. 4, the through hole 14 for attaching the wing plate portion 20 of the wing plate bolt 8 is below the ceiling SL and above the floor FL, so that the connecting work from the indoor side can be performed easily.

実施例の地震対策補強金物2を取り付けた2P(縦材芯間隔1000mmを2連とした)の壁フレーム構造1と構造用合板を張設した2Pの壁フレーム構造を対比したところ、壁強さ倍率・壁基準耐力(kN/m)について、地震対策補強金物2を取り付けた壁フレーム構造1では6.8であるのに対して、構造用合板を張設した壁フレーム構造では2.5程度であり、壁基準剛性(kN/rad./m)は、同様に1080であるのに対して360であった。   The wall strength of the wall frame structure 1 of 2P (the vertical material core interval of 1000 mm is doubled) and the wall frame structure of 2P with the structural plywood stretched are compared. The magnification and wall standard strength (kN / m) is 6.8 for the wall frame structure 1 with the earthquake-resistant reinforcement 2 attached, but about 2.5 for the wall frame structure with structural plywood stretched. The wall standard stiffness (kN / rad. / M) was 360 in contrast to 1080.

以上、実施例は既存住宅の改修補強を中心に説明したが、地震対策補強金物2は新築の場合にも適用できる。
補強金具7の各寸法やビス孔15の数と配置は本願の目的の範囲で種々に変更調整することができる。
補強金具7をビスの配置を疎にしたり、予備孔を設けるなど取り付け状態において、補強金具に対して引っ張り方向から強いせん断力が作用したとき、金物を横材へ固定している部分(横材取付け部)の縦材と反対側が浮上がるようにすると補強金具7の柔構造に加え、接合箇所で縦材が折損する事故を防止する上で好ましい。
As mentioned above, although the Example demonstrated centering on the repair reinforcement | strengthening of the existing house, the earthquake countermeasure reinforcement hardware 2 is applicable also in the case of a new construction.
Each dimension of the reinforcing bracket 7 and the number and arrangement of the screw holes 15 can be variously changed and adjusted within the scope of the purpose of the present application.
In a mounting state in which the reinforcing metal fitting 7 is loosely arranged or a spare hole is provided or the like, when a strong shearing force is applied to the reinforcing metal fitting from the pulling direction, the part that fixes the metal piece to the cross member (the cross member) It is preferable that the side opposite to the vertical member of the attachment portion) is lifted in order to prevent an accident in which the vertical member breaks at the joint location in addition to the flexible structure of the reinforcing bracket 7.

1 壁フレーム構造
2 地震対策補強金物
3(3a,3b) 縦材
4 横材
5 把持用孔
7(7a−7h) 補強金具
8(8a−8d) ターンバックル
10 縦材取付け部
11 横材取付け部
12 滑らかな曲線
13 把持用孔
14 貫通孔
15 ビス孔
16 補強リブ
17 固定用ビス
18 羽子板ボルト
18a 羽子板ボルト(右ネジ)
18b 羽子板ボルト(左ネジ)
19 バックル胴
20 羽子板部
21 ボルト・ナット
DESCRIPTION OF SYMBOLS 1 Wall frame structure 2 Anti-earthquake reinforcement hardware 3 (3a, 3b) Vertical material 4 Horizontal material 5 Grasp hole 7 (7a-7h) Reinforcement metal fitting 8 (8a-8d) Turnbuckle 10 Vertical material attachment part 11 Horizontal material attachment part 12 Smooth Curve 13 Gripping Hole 14 Through-hole 15 Screw Hole 16 Reinforcement Rib 17 Fixing Screw 18 Hung Board Bolt 18a Hung Board Bolt (Right Screw)
18b Battledore bolt (left screw)
19 Buckle body 20 Battledore part 21 Bolt / Nut

Claims (1)

上下の横材と左右の縦材が接合された壁フレーム構造に用いる地震または風対策補強金物であって、縦材と横材が接合した内隅箇所に取り付ける補強金具とこれらを筋かいに結合するターンバックルとからなり、補強金具は2つの長辺A,Bと2つの短辺C,Dを有する全体としてほぼ長方形を基本とした鋼板製であって、長辺は天井裏寸法や床下寸法より長く、かつビス孔が横材より離れた側に設けられていたり、予備孔が設けられていたり、隣り合う長辺Aと短辺Dの2辺が立ち上げられて縦材取付け部及び横材取付け部とされており、短辺C近くに把持用孔が形成されていると共に、長辺Aと短辺Dの頂点から壁フレーム構造の対角線に相当する角度で補強金具上に想定した線上に貫通孔が形成され、この貫通孔をターンバックル用羽子板ボルトの羽子板を固定する孔としてあることを特徴とした地震対策補強金物。   Anti-earthquake or wind protection metal fittings used for wall frame structure in which upper and lower cross members and left and right vertical members are joined. The reinforcement bracket is made of a steel plate that is basically rectangular in shape with two long sides A and B and two short sides C and D. The long sides are the dimensions of the ceiling and under the floor. Longer and screw holes are provided on the side away from the cross member, spare holes are provided, or the adjacent long side A and short side D are raised to raise the vertical member attachment part and the side On the line assumed on the reinforcing bracket at an angle corresponding to the diagonal of the wall frame structure from the apex of the long side A and the short side D, with a gripping hole formed near the short side C. A through-hole is formed in the Earthquake reinforcing hardware which is characterized in that there as a hole for fixing the battledore plate bolts.
JP2010007561U 2010-11-17 2010-11-17 Anti-earthquake reinforcement hardware Expired - Lifetime JP3167210U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018112019A (en) * 2017-01-13 2018-07-19 株式会社ポラス暮し科学研究所 Bearing wall manufacturing method and bearing wall
JP2019108776A (en) * 2017-12-20 2019-07-04 住友理工株式会社 Reinforcement structure and reinforcement method of wooden building

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018112019A (en) * 2017-01-13 2018-07-19 株式会社ポラス暮し科学研究所 Bearing wall manufacturing method and bearing wall
JP2019108776A (en) * 2017-12-20 2019-07-04 住友理工株式会社 Reinforcement structure and reinforcement method of wooden building
JP6998756B2 (en) 2017-12-20 2022-01-18 住友理工株式会社 Reinforcement structure and reinforcement method for wooden buildings

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