JP3660542B2

JP3660542B2 - Joint reinforcement structure for wooden houses

Info

Publication number: JP3660542B2
Application number: JP30372799A
Authority: JP
Inventors: 和彦森
Original assignee: Iida Sangyo Co Ltd
Current assignee: Iida Sangyo Co Ltd
Priority date: 1999-10-26
Filing date: 1999-10-26
Publication date: 2005-06-15
Anticipated expiration: 2019-10-26
Also published as: JP2001123532A

Description

【０００１】
【発明の属する技術分野】
本発明は、木造住宅等における仕口部補強構造に関する。
【０００２】
【従来の技術】
日本の伝統的な工法である軸組工法は、職人の技量による精緻な継手・仕口加工により、木材の性質を充分に生かした工法であり、住宅としての寿命も長く、現存する住宅も多く残っている。
しかしながら、今日の軸組工法は、地震対策として材積・材種を増加・強化し、継手・仕口部分に接合金物を取り付けて、仕口部分を強固に固め、建物自体で力を受け止める剛構造の住宅が盛んに増加している。
従来、一般的な２階建て住宅の仕口部分における接合金物数は、図７の土台材と中間支柱の間のＴ型の角金物Ｔが約６０個、図８の土台材角部と隅支柱の間のＬ型の角金物Ｌが約２０個、図９のＩ型の平金物Ｉが約１５個のように大量であるばかりでなく、金物を設けた仕口部分に相対する壁板には、接合金物と重なり合わないように、切欠を設ける場合もある。
【０００３】
【発明が解決しようとする課題】
このような剛構造の住宅は、結果的に、建物の剛性を増加させた反面、木質構造本来の靱性が失われる。
また、仕口部分に接合金物を利用した場合の材積の増加によるコストアップ、並びに、接合金物のための壁板部材の断面欠損による耐力低下、接合金物の取付による職人の負担増などの課題がある。
【０００４】
【課題を解決するための手段】
そこで、本発明は、土台材と胴差材との間、又は、胴差材と小屋桁材との間等の上下２本の水平材の間に少なくとも２本の垂直な支柱を仕口部を介して連結してなる木造住宅等における仕口部補強構造において、仕口部以外の上下２本の水平材と左右の支柱にステープル又は釘等からなる靱性留付材により補強パネルを取り付けると共に、仕口部においては補強パネルの４角部において前記留付材より強固で長いステープル又は釘等からなる靱性連結部材を留め付け固定したことを特徴とする木造住宅等における仕口部補強構造を提供するものである。
【０００５】
上記の本発明によれば、上下２本の水平材と左右の支柱は、補強パネルに釘等からなる靱性留付材に取り付けたことにより、また、上下２本の水平材と左右２本の支柱の接合部である仕口部は、補強パネルの４角に設けた強固で長い釘等からなる靱性連結部材により固定することにより、強い衝撃力に対して柔軟に靱性をもって対応し、且つ、接合金物を施した以上の強度を保持するものである。
【０００６】
また、本発明は、請求項１に記載の木造住宅等における仕口部補強構造において、仕口部においては補強パネルの４角部において三本の釘からなる靱性連結部材を三角形の頂点をなすように千鳥状に打ち込み留め付け固定したことを特徴とする木造住宅等における仕口部補強構造を提供するものである。
本発明によれば、三本の釘からなる靱性連結部材により仕口部に加わる圧縮力、引張力又は回転力に三点で効率よく対抗する仕口部補強構造が得られる。
【０００７】
また、本発明は、請求項１又は２に記載の木造住宅等における仕口部補強構造において、補強パネルの４角部に靱性連結部材を仕口部を貫通して施工すべき指定領域を設けたことを特徴とする木造住宅等における仕口部補強構造を提供するものである。
本発明によれば、補強パネルの４角部に設けた指定領域に靱性連結部材を施工すことにより、間違いなく靱性連結部材が仕口部を貫通した木造住宅等における仕口部補強構造を得ることができる。
【０００８】
【発明の実施の形態】
以下図示する実施例により、本発明の実施の形態を詳細に説明する。
図１において、１は土台材、２は胴差材、３は小屋桁材等の水平材で、上下の水平材の間に、所定間隔で多数の支柱４が設けてある。水平材１，２，３と支柱４との仕口部５は、実施例の場合、水平材側に設けたほぞ穴６に支柱４の両端部に突設したほぞ７が嵌合して接合している。
【０００９】
８は補強パネルで、実施例では、構造用合板からなり、土台材１と胴差材２との間、又は、胴差材２と小屋桁材３との間等の上下２本の水平材の間に、複数本の垂直な支柱４が仕口部５を介して連結した四角形の連続する水平材１，２，３及び支柱４等からなる軸組材の外側面に、壁板となる補強パネル８を仕口部５を含んで上下左右に隙間無く貼り付け、仕口部５以外の部分には、水平及び垂直方向に、例えば、Ｎ−５０以上の耐力性能のあるステープル又は釘等からなる靱性留付材９を１５０ｍｍ以下の間隔で留め付け、仕口部５には、例えば、ＺＮ９０・ＣＮ９０以上の耐力性能のあるステープル又は釘等からなる靱性連結部材１０を留め付けて、本発明に係る木造住宅等における仕口部補強構造を構成してある。
【００１０】
靱性留付材９及び靱性連結部材１０としては、従来公知の種々の釘類を使用することができるが、留め付け上、有頭の物であることが好ましく、また、釘打ち機で打ち込み可能な釘であっても良い。
また、補強パネル８の４角部には、靱性連結部材１０を施工すべき指定領域１１を設け、この指定領域１１に靱性連結部材１０を打設することにより、間違いなく仕口部５のほぞ７とほぞ穴６を釘等からなる靱性連結部材１０が貫通して仕口部補強構造を得ることができるように構成してある。
【００１１】
実施例の場合、靱性連結部材１０は三本の釘を三角形の頂点をなすように千鳥状に配置して打ち込み、仕口部５に加わる圧縮力、引張力又は回転力に三点で効率よく対抗するように構成してある。
このように、靱性連結部材１０として複数の釘を打ち込む場合、釘を結ぶ線が木材の木目に合致して割れを起こさないように配置することが好ましい。
【００１２】
【実施例】
図２の実施例の場合、軸組寸法は軸心寸法で１８２０（幅）×２７５０（高さ）ｍｍ、補強パネル２枚の張り寸法は１８２０（幅）×２７３０（高さ）ｍｍ、補強パネル８は構造用合板からなり、１枚の大きさは９１０（幅）×２７３０（高さ）ｍｍ、厚さは１２．０ｍｍで５プライ（即ち５枚重ね）であるが、通気のために部分的にカットされたカット部分１２は３プライ（即ち３枚重ね）になっている。見かけ比重は０．６２８である。支柱４は１０５×１０５ｍｍのベイ栂集成材、土台材１は１２０×１０５ｍｍのベイ栂集成材、胴差材２は１８０×１０５ｍｍベイ松集成材からなる。
【００１３】
補強パネル８は、土台材１の内側に位置して厚さ２４ｍｍの合板と、胴差材２の内側に位置して厚さ１２ｍｍの合板を、２７×１０５ｍｍベイ栂製材からなるパネル中桟材１３と共にＦＮ５０又はネイラー釘で釘止めしてパネル化し、上下の土台材１と胴差材２と左右の支柱４の間に嵌合するように構成してある。また、補強パネル８は仕口部５に対応して設けた４隅の指定領域１１を除く外周を、Ｎ５０の釘により１５０ｍｍ以下の間隔で、土台材１、胴差材２及び支柱４からなる軸組材に留め付けてある。
【００１４】
また、軸組材の支柱４と土台材１との仕口部５は短ほぞからなり、図２のＢに記載のように、裏側から２本のＺＮ９０の釘１５を打ち込んである。
上記合板からなる補強パネル８の４隅の指定領域１１には、図３のＡに記載のように、補強パネル８の上から靱性連結部材１０として３本のＺＮ９０の釘を短ほぞに向けて打ち込んである。
また、木材の含水率は、土台材１が８〜９％、胴差材２が９〜１０％、支柱４が９〜１０．５％、パネル中桟１３が１０〜１２％程度である。
【００１５】
このように、仕口部５に接合金物を使用しないで、合板からなる補強パネル８の４隅を３本のＺＮ９０の釘からなる靱性連結部材１０により接合した本発明に係る供試体２０を、図４乃至図６に記載のように、ＪＩＳＡ１４１４に規定される「タイロッドを用いない無載荷式の面内せん断試験Ｂ法」に準じて試験を行った。
【００１６】
図４乃至図６において、供試体２０は、両側の支柱４の柱芯から２００ｍｍの位置で、Ｍ１２のアンカーボルト２６で土台材１を基礎に相当する試験装置３０の基台２５に取り付け、土台材１の両端部は滑り止め用治具２４で固定した。荷重の加力は、供試体２０の胴差材２の中心を加力点として、油圧式復動ジャッキ２１により行い、荷重の検出は、前記ジャッキ２１の先端部に取り付けた容量１０ｔ、出力４０００μ／ＦＳのロードセル２２により行った。
【００１７】
変位の測定は、加力と反対側の供試体２０の支柱４の頂部と脚部で水平変位Ｈ１、Ｈ２を測定し、供試体２０の両側の脚部で上下方向の変位Ｖ３、Ｖ４を測定した。計測には、抵抗式：容量３００ｍｍ、出力３３μ／ｍｍ及び抵抗式：容量１００ｍｍ、出力３０００μ／ＦＳの電気式変位計を用いた。２３は振れ止めである。
【００１８】
荷重の加力方法は、正負交番繰り返し加力で行い、繰り返し履歴は、見かけのせん断変形角γ１の変形制御として、１／６００、１／３００、１／２００、１／１５０、１／１２０、１／１００、１／７５、１／５０ｒａｄ．を標準とした。ただし、供試体は２０はＯＰ１〜ＯＰ４の４本で、４体の中の１体ＯＰ１は一方向繰り返し加力とした。また、正負交番繰り返し加力を行った中の１体は、各繰り返し履歴のステップで３回の繰り返しを行った。
データの集録は、ロードセル及び変位計を静デジタルひずみ測定器、コンピュータシステムに接続して行った。
【００１９】
試験結果は、表１、表２に示す通りである。
【表１】

【００２０】
【表２】

【００２１】
ここで、見かけのせん断変形角（γ１）、脚部のせん断変形角（γ２）及び真のせん断変形角（γ３）は、次式を用いて算出した。
γ１＝（Ｈ１−Ｈ２）／Ｈ
γ２＝（Ｖ１−Ｖ２）／Ｖ
γ３＝ γ１−γ２
ここで、
γ１；見かけのせん断変形角（ｒａｄ．）
Ｈ１；供試体頂部の水平変位（ｍｍ）
Ｈ２；供試体脚部の水平変位（ｍｍ）
Ｈ；Ｈ１とＨ２との距離
γ２；脚部のせん断変形角（ｒａｄ．）
Ｖ３；供試体加力側脚部の上下方向変位（ｍｍ）
Ｖ４；供試体反加力側脚部の上下方向変位（ｍｍ）
Ｖ；Ｖ３とＶ４との距離
γ３；真のせん断変形角（ｒａｄ．）
【００２２】
無載荷式面内せん断試験Ｂ法では、
▲１▼ 見かけのせん断変形角γ１が１／１２０ｒａｄ．時の荷重
▲２▼ 最大荷重の２／３の荷重
▲３▼ 最大荷重時のせん断ひずみ量の１／２に対応する荷重
▲１▼〜▲３▼の中から最小値Ｐｍｉｎ．を求め、短期基準せん断耐力Ｐｏ、及び、壁倍率を算定する。
短期基準せん断耐力Ｐｏ＝Ｐｍｉｎ．×３／４
壁倍率＝Ｐｏ×１／１．８２×１／１３０
ここで、３／４；バラツキ係数
１．８２；供試体の壁長さ（ｍ）
１３０；壁倍率算定の基準強度（ｋｇｆ）
これらの結果を、表３に示す。
【００２３】
【表３】

【００２４】
最小の因子は、見かけのせん断変形角γ１の１／１２０ｒａｄ．時及び２／３Ｐｍａｘと変形角が一定で無いため、ＯＰ−３の正側の１／１７４ｒａｄ．を最小基準変形角として最小値を求め、そのときの荷重から短期基準せん断耐力、壁倍率を算定した。
なお、正負加力では、その平均値を用いて壁倍率を算定した。
表４には、真のせん断変形角が１−３００ｒａｄ．時の荷重により算定した結果を示す。
【００２５】
【表４】

表３の壁倍率の平均値３．８０及び表４の壁倍率の平均値５．０５の数値は、仕口部に接合金物を使用した場合を凌駕する数値である。
【００２６】
【発明の効果】
以上の通り、本発明に係る木造住宅等における仕口部補強構造よれば、土台材と胴差材との間、又は、胴差材と小屋桁材との間等の上下２本の水平材の間に少なくとも２本の垂直な支柱を仕口部を介して連結してなる木造住宅等における仕口部補強構造において、仕口部以外の上下２本の水平材と左右の支柱にステープル又は釘等からなる靱性留付材により補強パネルを取り付けると共に、仕口部においては補強パネルの４角部において前記留付材より強固で長いステープル又は釘等からなる靱性連結部材を留め付け固定した構成を有することにより、強い衝撃力に対して柔軟に靱性をもって対応し、且つ、接合金物を施した以上の強度を保持する効果がある。
【００２７】
また、本発明は、請求項１に記載の木造住宅等における仕口部補強構造において、仕口部においては補強パネルの４角部において三本の釘からなる靱性連結部材を三角形の頂点をなすように千鳥状に打ち込み留め付け固定した構成を有することにより、三本の釘からなる靱性連結部材により仕口部に加わる圧縮力、引張力又は回転力に三点で効率よく対抗する仕口部補強構造が得られる効果がある。
また、本発明は、請求項１又は２に記載の木造住宅等における仕口部補強構造において、補強パネルの４角部に靱性連結部材を仕口部を貫通して施工すべき指定領域を設けた構成を有することにより、補強パネルの４角部に設けた指定領域に靱性連結部材を施工すれば、間違いなく靱性連結部材が仕口部を貫通した木造住宅等における仕口部補強構造を得ることができる効果がある。
【図面の簡単な説明】
【図１】本発明の一実施例の要部を使用態様と共に示す概略斜面図。
【図２】本発明の一実施例の試験体の概略正面図。
【図３】その要部の拡大説明図。
【図４】本発明の一実施例の試験装置の概略正面図。
【図５】その要部の平面図。
【図６】その要部の側面図。
【図７】従来の仕口部を示す概略斜面図。
【図８】従来の仕口部を示す概略斜面図。
【図９】従来の仕口部を示す概略斜面図。
【符号の説明】
１土台材
２胴差材
３小屋桁材
４支柱
５仕口部
６ほぞ穴
７ほぞ
８補強パネル
９靱性留付材
１０靱性連結部材
１１指定領域
１２カット部分
１３パネル中桟材
１５釘
２０供試体
２１油圧式復動ジャッキ
２２ロードセル
２３振れ止め
２４滑り止め用治具
２５基台
２６アンカーボルト
３０試験装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint reinforcement structure in a wooden house or the like.
[0002]
[Prior art]
The traditional Japanese construction method is a construction method that makes full use of the properties of wood through precise joints and joint processing based on craftsmanship, has a long life as a house, and there are many existing houses. Remaining.
However, today's shaft construction method increases and strengthens the volume and grade as a countermeasure against earthquakes, attaches joints to joints and joints, hardens the joints, and accepts the force of the building itself The number of homes is increasing.
Conventionally, the number of joint hardware in the joint portion of a typical two-story house is about 60 T-shaped square hardware T between the base material and the intermediate support in FIG. 7, and the base material corner and corner in FIG. There are about 20 L-shaped square brackets L between the columns and about 15 I-shaped flat brackets I in FIG. In some cases, a notch is provided so as not to overlap the joint hardware.
[0003]
[Problems to be solved by the invention]
As a result, such a rigid structure house increases the rigidity of the building, but loses the inherent toughness of the wooden structure.
In addition, there are problems such as cost increase due to increase in material volume when joint metal is used for the joint part, decrease in yield strength due to cross-sectional defect of wall plate member for joint metal, and increase in craftsman's burden due to attachment of joint metal is there.
[0004]
[Means for Solving the Problems]
Accordingly, the present invention provides at least two vertical columns between the base material and the trunk difference material, or between the two upper and lower horizontal members such as between the trunk difference material and the roof girder material. In a joint reinforcement structure in a wooden house or the like connected via a joint , a reinforcement panel is attached to the upper and lower horizontal members other than the joint by means of a tough fastening material made of staples or nails, etc. In the joint portion, a joint portion reinforcing structure in a wooden house or the like characterized by fixing and fixing a tough connecting member made of staples or nails, which are stronger and longer than the fastening material , at the four corners of the reinforcing panel. It is to provide.
[0005]
According to the present invention, the upper and lower two horizontal members and the left and right support columns are attached to the toughness fastening material made of a nail or the like on the reinforcing panel. The joint part, which is the joint part of the support column, is fixed with a tough connecting member made of strong and long nails provided at the four corners of the reinforcing panel, so that it can flexibly respond to strong impact force with toughness, and It retains the strength higher than that applied with the metal joint.
[0006]
Further, according to the present invention, in the joint portion reinforcing structure in the wooden house or the like according to claim 1, the toughness connecting member made of three nails is formed at the apex of the triangle at the corner portion of the reinforcing panel. Thus, it is intended to provide a joint reinforcement structure in a wooden house or the like characterized by being driven and fixed in a zigzag manner .
According to the present invention, it is possible to obtain a joint portion reinforcing structure that efficiently opposes the compressive force, tensile force, or rotational force applied to the joint portion by a tough connecting member made of three nails at three points.
[0007]
Further, the present invention provides a joint portion reinforcing structure in a wooden house or the like according to

claim

1 or 2, wherein a specified region in which a tough connecting member is to be installed through the joint portion at four corners of the reinforcing panel is provided. It is an object of the present invention to provide a joint reinforcement structure in a wooden house or the like characterized by the above.
According to the present invention, by installing a toughness connecting member in a specified region provided at the four corners of the reinforcing panel, a toughening connecting structure in a wooden house or the like in which the toughness connecting member has penetrated the notch is definitely obtained. be able to.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the illustrated examples.
In FIG. 1, 1 is a base material, 2 is a trunk material, 3 is a horizontal material such as a siding girder, and a plurality of support columns 4 are provided at predetermined intervals between upper and lower horizontal materials. In the embodiment, the joint portion 5 of the

horizontal members

1, 2, 3 and the support column 4 is joined by fitting tenons 7 projecting from both ends of the support column 4 into mortise holes 6 provided on the horizontal material side. doing.
[0009]
Reference numeral 8 denotes a reinforcing panel, which in the embodiment is made of structural plywood, and is composed of two upper and lower horizontal members such as between the base material 1 and the trunk difference material 2 or between the trunk difference material 2 and the roof girder material 3. In between, a plurality of vertical columns 4 are connected to each other through a joint portion 5 and become a wall plate on the outer surface of a shaft assembly composed of continuous

horizontal members

1, 2, 3 and columns 4, etc. The reinforcing panel 8 including the joint portion 5 is attached to the top, bottom, left, and right without any gaps, and the portions other than the joint portion 5 are horizontally or vertically, for example, staples or nails having a strength performance of N-50 or more. The toughness fastening material 9 made of is fastened at intervals of 150 mm or less, and a toughness connecting member 10 made of, for example, staple or nail having a proof strength of ZN90 / CN90 or more is fastened to the joint 5. The joint part reinforcement structure in the wooden house etc. which concerns on invention is comprised.
[0010]
Conventionally known various nails can be used as the toughness fastening material 9 and the toughness connecting member 10, but it is preferably a headed thing for fastening, and can be driven with a nailing machine. Nails may be used.
In addition, a designated area 11 where the toughness connecting member 10 is to be constructed is provided at the four corners of the reinforcing panel 8, and the toughness connecting member 10 is driven into the designated area 11, so 7 and the mortise 6 are configured so that a tough connection member 10 made of a nail or the like passes through to obtain a joint reinforcement structure.
[0011]
In the case of the embodiment, the tough connection member 10 is driven in a staggered manner by placing three nails so as to form a triangular apex, and the compression force, tensile force or rotational force applied to the joint portion 5 is efficiently improved at three points. It is configured to compete.
Thus, when driving a plurality of nails as the tough connecting member 10, it is preferable to arrange the nails so that the lines connecting the nails coincide with the wood grain and do not crack.
[0012]
【Example】
In the case of the embodiment shown in FIG. 2, the shaft assembly dimension is 1820 (width) × 2750 (height) mm in the axial center dimension, and the tension dimension of the two reinforcing panels is 1820 (width) × 2730 (height) mm. 8 is made of structural plywood, the size of one sheet is 910 (width) x 2730 (height) mm, the thickness is 12.0 mm and it is 5 plies (that is, 5 sheets stacked), but it is partly for ventilation The cut portion 12 that is cut out is three plies (ie, three stacked). Apparent specific gravity is 0.628. The strut 4 is made of 105 × 105 mm bay gutter laminated material, the base material 1 is made of 120 × 105 mm bay gutter laminated wood, and the trunk difference material 2 is made of 180 × 105 mm bay pine laminated wood.
[0013]
Reinforcing panel 8 is an inner panel material made of 27 × 105 mm bay trout lumber consisting of a 24 mm thick plywood located inside the base material 1 and a 12 mm thick plywood located inside the trunk difference material 2. 13 and FN50 or Nailer nails to form a panel, which is configured to fit between the upper and lower base materials 1, the trunk difference material 2, and the left and right support columns 4. Further, the reinforcing panel 8 includes a base material 1, a trunk difference material 2, and a support column 4 at an interval of 150 mm or less with N50 nails on the outer periphery excluding designated areas 11 at four corners provided corresponding to the joint portion 5. It is fastened to the shaft assembly.
[0014]
Further, the joint portion 5 between the support column 4 and the base material 1 is formed of a short tenon, and two ZN90 nails 15 are driven in from the back side as shown in FIG. 2B.
In the designated areas 11 at the four corners of the reinforcing panel 8 made of plywood, as shown in FIG. 3A, three ZN90 nails as the tough connecting member 10 are directed from the top of the reinforcing panel 8 toward the short tenon. It is driven in.
Further, the moisture content of the wood is about 8 to 9% for the

base material

1, 9 to 10% for the

trunk difference material

2, 9 to 10.5% for the column 4, and about 10 to 12% for the crosspiece 13 in the panel.
[0015]
In this way, the specimen 20 according to the present invention in which the four corners of the reinforcing panel 8 made of plywood are joined by the tough connecting member 10 made of three ZN90 nails without using a joint metal for the joint portion 5, As shown in FIG. 4 to FIG. 6, the test was conducted in accordance with “No-load type in-plane shear test B method using no tie rod” defined in JIS A 1414.
[0016]
4 to 6, the specimen 20 is attached to the base 25 of the test apparatus 30 corresponding to the foundation material 1 with the anchor bolts 26 of M12 at a position 200 mm from the column cores of the pillars 4 on both sides. Both ends of the material 1 were fixed with a non-slip jig 24. The load is applied by the hydraulic return jack 21 with the center of the body difference material 2 of the specimen 20 as the applied point, and the load is detected by a capacity 10 t attached to the tip of the jack 21 and an output of 4000 μ / The test was carried out using a load cell 22 of FS.
[0017]
The displacement is measured by measuring horizontal displacements H1 and H2 at the top and legs of the support column 4 on the side opposite to the applied force, and measuring vertical displacements V3 and V4 at the legs on both sides of the sample 20. did. For the measurement, an electric displacement meter of resistance type: capacity 300 mm, output 33 μ / mm and resistance type: capacity 100 mm, output 3000 μ / FS was used. Reference numeral 23 denotes a steady rest.
[0018]
The load is applied by alternating positive and negative alternating force, and the repetition history is 1/600, 1/300, 1/200, 1/150, 1/120 as deformation control of the apparent shear deformation angle γ1. 1/100, 1/75, 1/50 rad. Was the standard. However, 20 specimens had four OP1 to OP4, and one of the four specimens OP1 was repeatedly applied in one direction. In addition, one body that repeatedly applied positive and negative alternating force was repeated three times at each repetition history step.
Data acquisition was performed by connecting a load cell and a displacement meter to a static digital strain measuring instrument and a computer system.
[0019]
The test results are as shown in Tables 1 and 2.
[Table 1]

[0020]
[Table 2]

[0021]
Here, the apparent shear deformation angle (γ1), the leg shear deformation angle (γ2), and the true shear deformation angle (γ3) were calculated using the following equations.
γ1 = (H1−H2) / H
γ2 = (V1−V2) / V
γ3 = γ1-γ2
here,
γ1; Apparent shear deformation angle (rad.)
H1; Horizontal displacement of the top of the specimen (mm)
H2: Horizontal displacement of the specimen leg (mm)
H; Distance γ2 between H1 and H2; Leg shear deformation angle (rad.)
V3: Vertical displacement (mm) of the leg side of the test specimen
V4: Vertical displacement (mm) of the leg part on the side opposite to the specimen
V; distance γ3 between V3 and V4; true shear deformation angle (rad.)
[0022]
In the no-load type in-plane shear test B method,
(1) The apparent shear deformation angle γ1 is 1/120 rad. Load {circle around (2)} 2/3 of the maximum load {circle around (3)} The minimum value Pmin. From among the loads {circle around (1)} to {circle around (3)} corresponding to 1/2 of the shear strain at the maximum load. Is calculated, and the short-term reference shear strength Po and the wall magnification are calculated.
Short-term reference shear strength Po = Pmin. × 3/4
Wall magnification = Po × 1 / 1.82 × 1/130
Here, 3/4; variation coefficient 1.82; wall length of specimen (m)
130: Standard strength for calculating wall magnification (kgf)
These results are shown in Table 3.
[0023]
[Table 3]

[0024]
The minimum factor is 1/120 rad. Of the apparent shear deformation angle γ1. Since the deformation angle is not constant at 2/3 Pmax, 1/174 rad. Was determined as the minimum standard deformation angle, and the short-term standard shear strength and wall magnification were calculated from the load at that time.
For positive and negative force, the wall magnification was calculated using the average value.
Table 4 shows that the true shear deformation angle is 1 to 300 rad. The result calculated by the load of time is shown.
[0025]
[Table 4]

The numerical values of the average wall magnification of 3.80 in Table 3 and the average wall magnification of 5.05 in Table 4 are values that surpass the case where a joint metal is used for the joint.
[0026]
【The invention's effect】
As described above, according to the joint portion reinforcing structure in the wooden house or the like according to the present invention, the two horizontal materials above and below, such as between the base material and the trunk difference material, or between the trunk difference material and the roof girder material. In a joint reinforcement structure in a wooden house or the like in which at least two vertical struts are connected via a joint between the two horizontal members other than the joint and two left and right struts or staples It is attached a reinforcing panel by toughness fastening material made of nails, structure fixed with retaining the toughness connecting member made of strong, long staples or nails, etc. from the fastening member at the four corners of the reinforcing panel in the Joint portion Therefore, it is possible to flexibly respond to strong impact force with toughness and to maintain the strength higher than that obtained by applying the joint metal.
[0027]
Further, according to the present invention, in the joint portion reinforcing structure in the wooden house or the like according to claim 1, the toughness connecting member made of three nails is formed at the apex of the triangle at the corner portion of the reinforcing panel. In this way, it has a configuration in which it is driven and fixed in a staggered manner, so that the joint portion efficiently counteracts the compressive force, tensile force or rotational force applied to the joint portion by a tough connecting member consisting of three nails at three points. There is an effect that a reinforcing structure is obtained.
Further, the present invention provides a joint portion reinforcing structure in a wooden house or the like according to

claim

1 or 2, wherein a specified region in which a tough connecting member is to be installed through the joint portion at four corners of the reinforcing panel is provided. If the toughness connecting member is constructed in the specified area provided at the four corners of the reinforcing panel, the joint reinforcing structure in the wooden house or the like in which the toughness connecting member has penetrated the joint is obtained. There is an effect that can.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a main part of one embodiment of the present invention together with a use mode.
FIG. 2 is a schematic front view of a test body according to an embodiment of the present invention.
FIG. 3 is an enlarged explanatory view of the main part.
FIG. 4 is a schematic front view of a test apparatus according to an embodiment of the present invention.
FIG. 5 is a plan view of the main part.
FIG. 6 is a side view of the main part.
FIG. 7 is a schematic perspective view showing a conventional joint portion.
FIG. 8 is a schematic perspective view showing a conventional joint portion.
FIG. 9 is a schematic perspective view showing a conventional joint portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base material 2 Torso difference material 3 Hut girder material 4 Support column 5 Joint part 6 Mortise hole 7 Tenon 8 Reinforcement panel 9 Toughness fastening material 10 Toughness connection member 11 Designation area 12 Cut part 13 Panel crosspiece 15 Nail 20 Specimen 21 Hydraulic Return Jack 22 Load Cell 23 Stabilizer 24 Anti-Slip Jig 25 Base 26 Anchor Bolt 30 Test Equipment

Claims

At least two vertical struts are connected via a joint part between two upper and lower horizontal members such as between the base material and the trunk difference material, or between the trunk difference material and the roof girder material. comprising a Joint reinforcement structure in wooden houses, etc., is attached a reinforcing panel by toughness fastening material made of staples or nails to the left and right strut upper and lower than the Joint portions two horizontal members, Joint portion In the tenon and the mortise , in the joint reinforcement structure in a wooden house or the like in which a tough connecting member made of staples or nails that are stronger and longer than the fastening material is driven and fixed at the four corners of the reinforcing panel A joint reinforcement structure in a wooden house or the like, characterized in that a specified region to be constructed by penetrating the tenacity connecting member through the tenon and mortise of the joint is provided at the four corners of the reinforcing panel .

2. A joint reinforcement structure for a wooden house or the like according to claim 1, wherein a tenacity connecting member made of three nails is driven in a zigzag manner and fixed in a tenon and a mortise of the joint in a zigzag manner. The joint part reinforcement structure in the wooden house etc. characterized by being formed.