JP2018155013A - Joint metal and junction structure of horizontal member - Google Patents

Joint metal and junction structure of horizontal member Download PDF

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JP2018155013A
JP2018155013A JP2017052327A JP2017052327A JP2018155013A JP 2018155013 A JP2018155013 A JP 2018155013A JP 2017052327 A JP2017052327 A JP 2017052327A JP 2017052327 A JP2017052327 A JP 2017052327A JP 2018155013 A JP2018155013 A JP 2018155013A
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joint
plate
horizontal member
joining
bonding
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綾那 伊藤
Ayana Ito
綾那 伊藤
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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Nippon Steel and Sumitomo Metal Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a joint metal and a junction structure of a horizontal member capable of bonding a horizontal member to a structural member, while suppressing occurrence of damage such as splitting.SOLUTION: A joint metal 1 includes a first bonding plate 11 and a second bonding plate 12 provided at right angles to the first bonding plate 11. An upper bonding portion 11a is provided only at the upper portion of the first bonding plate 11, an insertion portion 13 is provided only at the lower portion of the first bonding plate 11, and a lower bonding portion 12a is provided only at the lower portion of the second joining plate 12 and below the upper bonding portion 11a. Because the upper bonding portion 11a of the first bonding plate 11 is bonded and the insertion portion 13 is embedded below the upper bonding portion 11a to a structural member 2, and a horizontal member 3 is bonded to the lower bonding portion 12a of the second bonding plate 12 below the upper bonding portion 11a, it is possible to bond the horizontal member 3 to the structural member 2, while suppressing the occurrence of damage such as splitting.SELECTED DRAWING: Figure 3

Description

本発明は接合金物および横架材の接合構造に関する。   The present invention relates to a joining structure for joining hardware and a horizontal member.

柱等の構造材に梁等の横架材を接合する接合金物として例えば特許文献１および特許文献２に記載のものが知られている。 特許文献１に記載の接合金物は、床根太（横架材）を挟み込んで固定する一対の側壁部、接合金物を端根太（構造材）に取り付けるための取付部、一対の側壁部どうしを連結する連結部を備えている。 側壁部には上下方向に所定間隔で複数の孔が形成されており、この孔を通して釘等の止着材を床根太に打ち込むことで床根太が接合金物に固定されている。 また、取付部には上下方向に所定間隔で複数の孔が形成されており、この孔を通して端根太に釘を打ち込むことによって接合金物が端根太に接合されている。   For example, those described in Patent Literature 1 and Patent Literature 2 are known as joining hardware for joining a horizontal material such as a beam to a structural material such as a column. The joint hardware described in Patent Document 1 connects a pair of side wall portions that sandwich and fix a floor joist (horizontal member), an attachment portion for attaching the joint hardware to the end joist (structural material), and a pair of side wall portions. The connecting part is provided. A plurality of holes are formed in the side wall portion at predetermined intervals in the vertical direction, and floor joists are fixed to the joint metal by driving a fastening material such as a nail into the floor joists through the holes. Further, a plurality of holes are formed in the mounting portion at predetermined intervals in the vertical direction, and the metal fitting is joined to the end joists by driving nails into the end joists through the holes.

特許文献２に記載の接合金物は、柱等の構造材に当接して固定される当接部と、この当接部から直角方向に張り出した挿入部とを備えている。挿入部は梁等の横架材に形成されたスリットに挿入され、横架材の側面からボルト等の止着材が挿入部に形成された孔に挿通され、これによって、接合金物に横架材が固定されている。 また、当接部には上下方向に所定間隔で複数のボルト穴が形成され、これらボルト穴と柱に形成されたボルト穴とにボルトを挿入することによって、接合金物が柱に接合されている。 The metal joint described in Patent Document 2 includes a contact portion that is fixed in contact with a structural material such as a column, and an insertion portion that projects in a direction perpendicular to the contact portion. The insertion part is inserted into a slit formed in a horizontal member such as a beam, and a fastening material such as a bolt is inserted from a side surface of the horizontal member into a hole formed in the insertion part. The material is fixed. In addition, a plurality of bolt holes are formed at predetermined intervals in the vertical direction in the contact portion, and the joining hardware is joined to the pillars by inserting bolts into these bolt holes and the bolt holes formed in the pillars. .

特許第４４７０４８８号公報Japanese Patent No. 4470488 特許第３４６１９７８号公報Japanese Patent No. 3461978

ところで、上述した２例の接合金物は、構造材に接合金物を接合するために、取付部（特許文献１参照）や当接部（特許文献２参照）に上下に所定間隔で複数の孔を形成し、これら孔に釘やボルト等の止着材を挿通するとともに当該止着材を構造材に打ち込んだり、挿通することで、接合金物を構造材に接合している。
また、接合金物に床根太や梁等の横架材を固定するために、側壁部（特許文献１参照）や挿入部（特許文献２参照）に上下に所定間隔で複数の孔を形成し、これら孔に釘やボルト等の止着材を挿通するとともに当該止着材を横架材に打ち込んだり、挿通することで、接合金物に横架材を固定している。 By the way, in the above-described two examples of the joint metal, in order to join the joint metal to the structural material, a plurality of holes are vertically provided at predetermined intervals in the attachment part (see Patent Document 1) and the contact part (see Patent Document 2). Then, a fastening material such as a nail or a bolt is inserted into these holes, and the fastening material is driven into or inserted into the structural material, thereby joining the joint hardware to the structural material.
Moreover, in order to fix a horizontal member such as a floor joist or a beam to the joint hardware, a plurality of holes are formed at predetermined intervals in the vertical direction on the side wall (see Patent Document 1) and the insertion part (see Patent Document 2), A fixing member such as a nail or a bolt is inserted into these holes, and the fixing member is driven into or inserted into the horizontal member, thereby fixing the horizontal member to the metal fitting.

このため、横架材に下方に向く外力が加わると、この外力のほぼ全てが接合金物を介して構造材にせん断力として作用する。しかし、接合金物を構造材に接合するために釘やボルト等の止着材を接合金物の上下全長に亘って上下方向に所定間隔で配置し、当該止着材を構造材に止着しているため、これら止着材に応力が集中する。つまり、止着材は上部から下部にわたって配置されているため、止着材が止着されている構造材の部分に応力が集中する。このため、この応力集中によって構造材に割裂等の損傷が生じる虞があった。   For this reason, when an external force directed downward is applied to the horizontal member, almost all of the external force acts as a shearing force on the structural member via the joint metal. However, in order to join the joint hardware to the structural material, fastening materials such as nails and bolts are arranged at predetermined intervals in the vertical direction over the entire vertical length of the joint hardware, and the fastening material is secured to the structural material. Therefore, stress concentrates on these fastening materials. That is, since the fastening material is arranged from the upper part to the lower part, stress concentrates on the portion of the structural material to which the fastening material is secured. For this reason, the stress concentration may cause damage such as splitting in the structural material.

本発明は前記事情に鑑みてなされたもので、構造材への割裂等の損傷の発生を抑制して、構造材に横架材を接合することができる接合金物および横架材の接合構造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, and it is possible to suppress the occurrence of damage such as splitting to a structural material, and to provide a joint hardware and a lateral material joining structure capable of joining a horizontal material to the structural material. The purpose is to provide.

前記目的を達成するために、本発明の接合金物は、構造材に横架材を接合するための接合金物であって、
前記構造材に一側面が接合される第１接合板と、この第１接合板の他側面に直角に設けられて、前記横架材が接合される第２接合板とを備え、
前記接合金物の上部のみにおいて、前記第１接合板に、当該第１接合板を前記構造材に接合する上部接合部が設けられ、
前記接合金物の下部のみにおいて、前記第１接合板または第２接合板に、前記構造材にめり込み可能なめり込み部が設けられ、
前記第２接合板の下部のみでかつ前記上部接合部より下方に、前記横架材を前記第２接合板に接合する下部接合部が設けられていることを特徴とする。 In order to achieve the above object, the metal fitting of the present invention is a metal fitting for bonding a horizontal member to a structural material,
A first bonding plate having one side surface bonded to the structural material, and a second bonding plate provided at a right angle to the other side surface of the first bonding plate and to which the horizontal member is bonded;
Only in the upper part of the metal fitting, the first bonding plate is provided with an upper bonding portion for bonding the first bonding plate to the structural material,
Only in the lower part of the metal joint, the first joint plate or the second joint plate is provided with a dent portion that can be sunk into the structural material,
A lower joint portion for joining the horizontal member to the second joint plate is provided only at a lower portion of the second joint plate and below the upper joint portion.

また、本発明の横架材の接合構造は、構造材に横架材を前記接合金物によって接合してなる横架材の接合構造であって、
前記構造材に、前記接合金物の第１接合板の上部接合部が接合されるとともに前記めり込み部がめり込んでおり、
前記接合金物の前記第２接合板の前記下部接合部に前記横架材が接合されていることを特徴とする。 Moreover, the joint structure of the horizontal member of the present invention is a joint structure of a horizontal member formed by bonding a horizontal member to a structural material by the joint hardware,
In the structural material, the upper joint portion of the first joint plate of the joint hardware is joined and the indented portion is indented,
The horizontal member is joined to the lower joint portion of the second joint plate of the joint hardware.

本発明においては、構造材に第１接合板の上部接合部が接合され、第２接合板の下部接合部に横架材が上部接合部より下方において接合されているので、つまり、上部接合部と下部接合部とが上下方向および水平方向に離間しているので、横架材に下方に向く外力が加わると、上部接合部には下部接合部を支点とするモーメントによって、引張方向の力が作用するとともに、せん断力が作用し、この上部接合部１１ａを介して構造材２に引張方向の力が作用するとともに、せん断力が作用する。
また、めり込み部に前記モーメントによって、圧縮方向の力が作用し、めり込み部１３を介して構造材２に圧縮方向の力が作用するとともに、せん断力が作用する。
このように、本発明では、横架材に下方に向く外力が加わると、この外力は構造材に、上部接合部から引張方向の力およびせん断力、めり込み部から圧縮方向の力およびせん断力として分散されて作用する。したがって、従来と異なり、構造材に生じる応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材に横架材を接合することができる。 In the present invention, the upper joint portion of the first joint plate is joined to the structural material, and the horizontal member is joined to the lower joint portion of the second joint plate below the upper joint portion, that is, the upper joint portion. Since the lower joint and the lower joint are separated in the vertical and horizontal directions, when an external force is applied to the horizontal member, the tensile force in the tensile direction is applied to the upper joint by a moment about the lower joint. In addition to acting, a shearing force acts, and a tensile force acts on the structural material 2 via the upper joint portion 11a, and a shearing force acts.
In addition, a force in the compression direction acts on the indented portion due to the moment, and a force in the compression direction acts on the structural member 2 via the indented portion 13 and a shearing force acts.
Thus, in the present invention, when an external force directed downward is applied to the horizontal member, the external force is applied to the structural material as a force and shear force in the tensile direction from the upper joint portion, and as a force and shear force in the compression direction from the recessed portion. Acts distributed. Therefore, unlike the conventional case, stress concentration generated in the structural material can be relaxed, so that the occurrence of damage such as splitting due to the stress concentration can be suppressed and the horizontal member can be joined to the structural material.

また、本発明の前記構成において、前記第１接合板に、前記第２接合板が１枚設けられていてもよい。   Moreover, the said structure of this invention WHEREIN: One said 2nd joining board may be provided in the said 1st joining board.

このような構成によれば、横架材がＨ形鋼や軽量Ｈ形鋼で形成されている場合に、そのウエブを第２接合板の下部接合部に容易に接合できる。つまり、横架材がＨ形鋼や軽量Ｈ形鋼で形成されている場合に好適である。   According to such a configuration, when the horizontal member is formed of H-section steel or lightweight H-section steel, the web can be easily joined to the lower joint portion of the second joining plate. That is, it is suitable when the horizontal member is formed of H-section steel or lightweight H-section steel.

また、本発明の前記構成において、前記第１接合板に、前記第２接合板が２枚互いに平行に設けられていてもよい。   Moreover, the said structure of this invention WHEREIN: Two said 2nd joining boards may be provided in the said 1st joining board mutually parallel.

このような構成によれば、横架材が断面矩形状に形成されている場合に、その両側面を２枚の第２接合板によって挟み付けて、横架材を両第２接合板の下部接合部に容易に接合できる。つまり、横架材が断面矩形状の木質の梁やまぐさである場合に好適である。さらに、Ｈ形鋼や軽量Ｈ形鋼のウエブの両側面側にそれぞれ断面矩形状の木質の帯板材を設置した複合材の場合にも好適である。   According to such a configuration, when the horizontal member is formed in a rectangular cross section, both side surfaces thereof are sandwiched between the two second bonding plates, and the horizontal member is positioned below the second bonding plates. Can be easily joined to the joint. That is, it is suitable when the horizontal member is a wooden beam or lintel having a rectangular cross section. Furthermore, it is also suitable in the case of a composite material in which wood strips having a rectangular cross section are installed on both sides of the H-shaped steel or lightweight H-shaped steel web.

また、本発明の前記構成において、前記第１接合板の下縁部に、前記横架材を下方から支持する支持板が設けられていてもよい。   Moreover, the said structure of this invention WHEREIN: The support plate which supports the said horizontal member from the downward direction may be provided in the lower edge part of the said 1st joining board.

このような構成によれば、横架材が支持板によって下方から支持されるので、構造材に接合された横架材をより強固に支持することができる。   According to such a configuration, since the horizontal member is supported from below by the support plate, the horizontal member joined to the structural material can be supported more firmly.

また、本発明の横架材の接合構造は、構造材に横架材を、支持板を有する接合金物によって接合してなる横架材の接合構造であって、
前記横架材が軽量Ｈ形鋼によって形成されるとともに、前記横架材の下フランジの長手方向の先端部に切欠部が形成され、
前記構造材に、前記接合金物の第１接合板の上部接合部が接合されるとともに前記めり込み部がめり込んでおり、
前記接合金物の前記第２接合板の前記下部接合部に前記横架材のウエブが接合され、
前記下フランジの切欠部に前記第２接合板が入り込んだ状態で前記第２接合板と前記ウエブが重なるとともに、前記下フランジの先端部が前記接合金物の前記支持板に設置されていることを特徴とする。 Further, the joint structure of the horizontal member of the present invention is a joint structure of the horizontal member formed by joining the horizontal member to the structural member by a joint metal having a support plate,
The horizontal member is formed of lightweight H-shaped steel, and a notch is formed at the longitudinal tip of the lower flange of the horizontal member,
In the structural material, the upper joint portion of the first joint plate of the joint hardware is joined and the indented portion is indented,
The web of the horizontal member is bonded to the lower bonding portion of the second bonding plate of the bonding metal,
The second joint plate and the web overlap with the second joint plate inserted into the notch of the lower flange, and the tip of the lower flange is installed on the support plate of the joint hardware. Features.

本発明においては、構造材に発生する応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材に横架材を接合することができるとともに、以下のような効果を奏する。
すなわち、前記下フランジの切欠部に前記第２接合板が入り込んだ状態で前記第２接合板と前記ウエブが重なるので、構造材に接合された接合金物に、上方から横架材をクレーン等によって吊り下げて落とし込んで接合する際に、下フランジを切欠部によって、第２接合板に干渉させことなく、落とし込んで当該下フランジの先端部を接合金物の支持板に設置することができる。したがって、構造材に接合された接合金物に、上方から横架材をクレーン等によって吊り下げて落とし込んで容易に接合できる。 In the present invention, since the stress concentration generated in the structural material can be reduced, the occurrence of damage such as splitting due to the stress concentration can be suppressed, and the horizontal member can be joined to the structural material. Has an effect.
That is, since the second joining plate and the web overlap with the second joining plate entering the notch portion of the lower flange, the horizontal member is attached from above to the joining hardware joined to the structural material by a crane or the like. When suspending and dropping and joining, the lower flange can be dropped by the cutout portion without interfering with the second joining plate, and the tip of the lower flange can be installed on the support plate of the joint hardware. Therefore, the horizontal member can be suspended from the upper side by a crane or the like and dropped onto the metal joint bonded to the structural material, and can be easily bonded.

本発明によれば、構造材には、接合金物の上部接合部から引張方向の力およびせん断力、めり込み部から圧縮方向の力およびせん断力が分散されて作用し、従来と異なり、構造材に生じる応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材に横架材を接合することができる。   According to the present invention, the tensile force and shear force from the upper joint portion of the joint metal and the compressive force and shear force from the indented portion are dispersed and act on the structural material. Since the generated stress concentration can be reduced, it is possible to suppress the occurrence of damage such as splitting caused by the stress concentration and to join the horizontal member to the structural material.

本発明の第１の実施の形態を示すもので、横架材の接合構造の分解斜視図である。The 1st Embodiment of this invention is shown and it is a disassembled perspective view of the joining structure of a horizontal member. 同、接合金物の側面図である。It is a side view of a joint metal fitting. 同、横架材の接合構造の側面図である。It is a side view of the joining structure of a horizontal member. 本発明に係る第１の実施の形態の変形例を示すもので、（ａ）は第１変形例の横架材の接合構造の側面図、（ｂ）第２変形例の横架材の接合構造の側面図である。The modification of 1st Embodiment which concerns on this invention is shown, (a) is a side view of the joining structure of the horizontal member of a 1st modification, (b) Joining of the horizontal member of a 2nd modification It is a side view of a structure. 本発明の第２の実施の形態を示すもので、横架材の接合構造の分解斜視図である。The 2nd Embodiment of this invention is shown and it is a disassembled perspective view of the joining structure of a horizontal member. 同、横架材の接合構造の側面図である。It is a side view of the joining structure of a horizontal member. 本発明の第３の実施の形態を示すもので、接合金物の斜視図である。The 3rd Embodiment of this invention is shown and it is a perspective view of a joining metal fitting. 同、横架材の接合構造の側面図である。It is a side view of the joining structure of a horizontal member. 本発明に係る第３の実施の形態の変形例を示すもので、（ａ）は第１変形例の接合金物の斜視図、（ｂ）は第２変形例の接合金物の斜視図である。The modification of 3rd Embodiment which concerns on this invention is shown, (a) is a perspective view of the metal joint of a 1st modification, (b) is a perspective view of the metal joint of a 2nd modification.

以下、図面を参照して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〜図３は第１の実施の形態を示すもので、図１は接合金物と横架材を示す斜視図、図２は接合金物を示す側面図、図３は横架材の接合構造を示す側面図である。 Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
1 to 3 show a first embodiment, FIG. 1 is a perspective view showing a metal joint and a horizontal member, FIG. 2 is a side view showing the metal joint, and FIG. 3 is a joint structure of the horizontal member. FIG.

接合金物１は鋼板等の金属板によって形成されたもので、構造材２に一側面が接合される第１接合板１１と、この第１接合板１１の他側面に直角に設けられて、横架材３が接合される第２接合板１２とを備えている。
構造材２は、図３に示すように、例えば木質の梁やまぐさであり、断面矩形状に形成されている。なお、構造材は梁やまぐさに限らず、柱や壁であってもよい。
横架材３は、床根太、梁、またはまぐさ等であり、軽量Ｈ形鋼またはＨ形鋼によって形成されている。 The metal joint 1 is formed of a metal plate such as a steel plate, and is provided with a first joint plate 11 whose one side surface is joined to the structural material 2 and a right side on the other side surface of the first joint plate 11. And a second joining plate 12 to which the frame member 3 is joined.
As shown in FIG. 3, the structural material 2 is, for example, a wooden beam or a lintel, and has a rectangular cross section. The structural material is not limited to a beam or a lintel but may be a pillar or a wall.
The horizontal member 3 is a floor joist, a beam, a lintel or the like, and is formed of a lightweight H-section steel or H-section steel.

第１接合板１１は縦長の矩形板状に形成され、その上部（第１接合板１１の上下方向の略上半分）のみに、第１接合板１１を構造材２に接合する上部接合部１１ａが設けられている。この上部接合部１１ａは、第１接合板１１の一側面の略上半分の接合面１１ｂと、第１接合板１１の上半分（接合面１１ｂ）に貫通して設けられた複数の孔１１ｃとから構成されている。孔１１ｃは第２接合板１２が設けられている部分を避けて、千鳥状に配置されている。図１および図２において、孔１１ｃは３個設けられているが、それ以上設けられていてもよい。但し、最も下方に配置された孔１１ｃが後述するめり込み部１３の上端部と上下方向において重ならないように孔１１ｃは配置されている。   The first joining plate 11 is formed in a vertically long rectangular plate shape, and an upper joining portion 11a that joins the first joining plate 11 to the structural material 2 only at the upper portion (substantially upper half of the first joining plate 11 in the vertical direction). Is provided. The upper joint portion 11a includes a substantially upper half joining surface 11b on one side of the first joining plate 11, and a plurality of holes 11c provided through the upper half (joining surface 11b) of the first joining plate 11. It is composed of The holes 11c are arranged in a staggered manner avoiding the portion where the second bonding plate 12 is provided. 1 and 2, three holes 11c are provided, but more holes may be provided. However, the hole 11c is arranged so that the hole 11c arranged at the lowermost position does not overlap with an upper end portion of the recessed portion 13 described later in the vertical direction.

また、第１接合板１１の下部のみに、構造材２の側面にめり込み可能なめり込み部１３が設けられている。このめり込み部１３は、上下に長尺でかつ第１接合板１１の一側面の下部の両縁部からそれぞれ当該一側面と略直角に突出する一対の平板１３ａ，１３ａによって構成されている。平板１３ａ，１３ａは平行に配置されている。
めり込み部１３の上下の長さは、第１接合板１１の上下の長さの略半分となっている。また、めり込み部１３の突出長さは特に規定するものでないが、構造材２の側面にめり込み可能な長さに設定すればよい。また、構造材２の側面にめり込み易くするために、めり込み部１３の平板１３ａ，１３ａの先端縁部を尖った形状にしてもよい。
また、平板１３ａ，１３ａは、第１接合板１１の下半分を上半分に比して平板１３ａ，１３ａの幅の分（平板１３ａの第１接合板１１の一側面からの突出長さの分）だけ長く形成しておき、その部分を第１接合板１１の一側面側に略直角に折り曲げ形成してもよいし、平板１３ａ，１３ａを第１接合板１１に溶接等によって固定してもよい。 Further, only a lower portion of the first joining plate 11 is provided with a recessed portion 13 that can be recessed into the side surface of the structural material 2. The indented portion 13 is composed of a pair of flat plates 13 a and 13 a that are long in the vertical direction and project substantially perpendicular to the one side surface from both lower edge portions of one side surface of the first bonding plate 11. The flat plates 13a and 13a are arranged in parallel.
The vertical length of the recessed portion 13 is substantially half of the vertical length of the first bonding plate 11. Further, the protruding length of the recessed portion 13 is not particularly specified, but may be set to a length that can be recessed into the side surface of the structural material 2. Moreover, in order to make it easy to sink into the side surface of the structural member 2, the end edges of the flat plates 13 a and 13 a of the sinking portion 13 may be sharpened.
Further, the flat plates 13a and 13a have a width corresponding to the width of the flat plates 13a and 13a compared to the upper half of the lower half of the first bonding plate 11 (the length of the protrusion of the flat plate 13a from one side surface of the first bonding plate 11). ), And the portion may be bent at a substantially right angle on one side of the first joining plate 11, or the flat plates 13 a and 13 a may be fixed to the first joining plate 11 by welding or the like. Good.

また、第１接合板１１の下縁部には、横架材３の先端部を下方から支持する支持板１４が設けられている。この支持板１４は第１接合板１１の他側面の下縁部から前記めり込み部１３とは逆側に直角に突出する矩形平板状のものであり、その幅は第１接合板１１の幅と等しくなっている。また、支持板１４の第１接合板１１の他側面からの突出長さは、第２接合板１２の前記他側面からの突出長さより長くなっている。   Further, a support plate 14 that supports the front end portion of the horizontal member 3 from below is provided at the lower edge portion of the first joining plate 11. The support plate 14 is a rectangular flat plate projecting from the lower edge portion of the other side surface of the first joining plate 11 at a right angle to the opposite side of the recessed portion 13, and the width thereof is the same as the width of the first joining plate 11. Are equal. In addition, the protruding length of the support plate 14 from the other side surface of the first bonding plate 11 is longer than the protruding length of the second bonding plate 12 from the other side surface.

第２接合板１２は縦長の矩形板状に形成され、第１接合板１１の他側面の幅方向略中央部に当該他側面に対して略直角に設けられている。また、第２接合板１２の下端面は支持板１４の上面に接合されている。
また、第２接合板１２の下部（第２接合板１２の上下方向の略下半分）のみでかつ前記上部接合部１１ａより下方に、横架材３を第２接合板１２に接合する下部接合部１２ａが設けられている。この下部接合部１２ａは、第２接合板１２の一側面の略下半分の接合面１２ｂと、この接合面１２ｂに第２接合板１２を貫通して設けられた複数の孔１２ｃとから構成されている。孔１２ｃは上下に離間して２個設けられているが、それ以上設けられていてもよい。また、接合面１２ｂは図２において第２接合板１２の裏側の面である。 The second bonding plate 12 is formed in a vertically long rectangular plate shape, and is provided at a substantially central portion in the width direction of the other side surface of the first bonding plate 11 at a substantially right angle with respect to the other side surface. Further, the lower end surface of the second bonding plate 12 is bonded to the upper surface of the support plate 14.
Further, only the lower part of the second joining plate 12 (substantially lower half of the second joining plate 12 in the vertical direction) and the lower joining for joining the horizontal member 3 to the second joining plate 12 below the upper joining part 11a. A portion 12a is provided. The lower joint portion 12a includes a substantially lower half joining surface 12b on one side surface of the second joining plate 12, and a plurality of holes 12c provided through the joining surface 12b through the second joining plate 12. ing. Although two holes 12c are provided apart from each other in the vertical direction, more holes may be provided. Further, the joining surface 12b is a surface on the back side of the second joining plate 12 in FIG.

軽量Ｈ形鋼によって形成された横架材３はその下フランジ３ａの長手方向の先端部に矩形状の切欠部１５が形成されている。この切欠部１５は下フランジ３ａの先端部において、その幅方向全体に亘って形成されている。また、切欠部１５の下フランジ３ａの長手方向における長さは、接合金物１の第２接合板１２に、横架材（軽量Ｈ形鋼）３のウエブ３ｂを重ねた際に、切欠部１５を有する下フランジ３ａの先端部を支持板１４に設置可能となるような長さに設定されている。
また、横架材３のウエブ３ｂの先端部には、ウエブ３ｂの略下半分に２つの孔３ｄ，３ｄが上下に離間して設けられている。 The horizontal member 3 made of lightweight H-shaped steel has a rectangular notch 15 formed at the front end in the longitudinal direction of the lower flange 3a. This notch 15 is formed over the whole width direction in the front-end | tip part of the lower flange 3a. The length of the lower flange 3a of the notch 15 in the longitudinal direction is such that when the web 3b of the horizontal member (lightweight H-shaped steel) 3 is overlapped on the second joining plate 12 of the metal joint 1, the notch 15 The length of the lower flange 3a having the length is set so as to be able to be installed on the support plate 14.
Further, two holes 3d and 3d are provided at the front end portion of the web 3b of the horizontal member 3 so as to be separated from each other in the substantially lower half of the web 3b.

このような構成の接合金物１を使用して横架材３を構造材２に接合するには、まず、接合金物１を構造材２に側面に接合する。すなわち、接合金物１の第１接合板１１の一側面を構造材２の上側の側面に当接するとともに、めり込み部１３を構造材２の下側の側面にめり込ます。この場合、第１接合板１１の略下半分を構造材２の側面に向けてハンマー等によって叩くことによって、めり込み部１３を構造材２の側面にめり込ませてもよいし、構造材２の下側の側面に予め浅い縦スリットを形成しておき、この縦スリットにめり込み部１３をめり込ませてもよい。このように、めり込み部１３を構造材２の側面にめり込ませることで、接合金物１を構造材２に仮止めできる。   In order to join the horizontal member 3 to the structural material 2 using the joining hardware 1 having such a configuration, first, the joining hardware 1 is joined to the side surface of the structural material 2. That is, one side surface of the first joining plate 11 of the metal fitting 1 is brought into contact with the upper side surface of the structural material 2, and the recessed portion 13 is recessed into the lower side surface of the structural material 2. In this case, the recessed portion 13 may be recessed into the side surface of the structural material 2 by hitting a substantially lower half of the first joining plate 11 toward the side surface of the structural material 2 with a hammer or the like. A shallow vertical slit may be formed in advance on the lower side surface, and the recessed portion 13 may be recessed into the vertical slit. In this way, the metal fitting 1 can be temporarily fixed to the structural material 2 by causing the recessed portion 13 to be recessed into the side surface of the structural material 2.

次に、構造材２の側面に第１接合板１１の上部接合部１１ａを接合する。すなわち、上部接合部１１ａの孔１１ｃに釘やビス、ボルト等の止着材１６を打ち込みまたはねじ込むことによって、接合面１１ｂを構造材２の側面に密着固定する。   Next, the upper joint portion 11 a of the first joining plate 11 is joined to the side surface of the structural material 2. That is, the bonding surface 11b is tightly fixed to the side surface of the structural material 2 by driving or screwing a fastening material 16 such as a nail, a screw, or a bolt into the hole 11c of the upper bonding portion 11a.

次に、構造材２の側面に接合された接合金物１の第２接合板１２に横架材３を接合する。すなわちまず、横架材３をクレーン等によって吊り下げた状態で、接合金物１の上方から第２接合板１２に向けて落とし込む。
この場合、平面視において下フランジ３ａの切欠部１５に接合金物１の第２接合板１２が入り込み、かつウエブ３ｂを第２接合板１２に重ねるようにして、横架材３を落とし込んで行くことで、切欠部１５を有する下フランジ３ａが第２接合板１２に干渉することなく降下していき、当該下フランジ３ａの先端部が支持板１４に設置される。 Next, the horizontal member 3 is bonded to the second bonding plate 12 of the bonding hardware 1 bonded to the side surface of the structural material 2. That is, first, the horizontal member 3 is dropped from above the metal joint 1 toward the second joint plate 12 in a state of being suspended by a crane or the like.
In this case, the horizontal member 3 is dropped in such a manner that the second joining plate 12 of the joining hardware 1 enters the notch 15 of the lower flange 3a in plan view and the web 3b is superimposed on the second joining plate 12. Thus, the lower flange 3 a having the notch portion 15 is lowered without interfering with the second joining plate 12, and the tip end portion of the lower flange 3 a is installed on the support plate 14.

次に、接合金物１の第２接合板１２に横架材３のウエブ３ｂを接合する。すなわち、下フランジ３ａが支持板１４に設置されることにより、ウエブ３ｂの孔３ｄ，３ｄと第２接合板１２の孔１２ｃ，１２ｃとが上下方向において等しい位置に位置するので、さらに、孔３ｄ，３ｄと孔１２ｃ，１２ｃとを左右方向（横架材３の長手方向）において位置合わせしたうえで、これら孔３ｄ，１２ｃにボルトやドリフトピン等の止着材１７を挿入することによって、接合金物１の第２接合板１２の下部接合部１２ａに横架材３のウエブ３ｂを前記上部接合部１１ａより下方において接合する。   Next, the web 3 b of the horizontal member 3 is joined to the second joining plate 12 of the joint hardware 1. That is, since the lower flange 3a is installed on the support plate 14, the holes 3d and 3d of the web 3b and the holes 12c and 12c of the second joining plate 12 are positioned at the same position in the vertical direction. , 3d and the holes 12c, 12c are aligned in the left-right direction (longitudinal direction of the horizontal member 3), and a fastening member 17 such as a bolt or a drift pin is inserted into the holes 3d, 12c The web 3b of the horizontal member 3 is joined to the lower joint 12a of the second joint plate 12 of the metal object 1 below the upper joint 11a.

このように本実施の形態によれば、構造材２の側面に第１接合板１１の上部接合部１１ａが接合され、第２接合板１２の下部接合部１２ａに横架材３のウエブ３ｂが上部接合部１１ａより下方において接合されているので、つまり、図３に示すように、上部接合部１１ａと下部接合部１２ａとが上下方向および左右方向に離間しているので、横架材３に下方に向く外力が加わると、上部接合部１１ａには下部接合部１２ａを支点とするモーメントによって、引張方向の力（上部接合部１１ａが構造材２から離間する方向の力）が作用するとともに、せん断力が作用する。そして、この上部接合部１１ａを介して構造材２に引張方向の力が作用するとともに、せん断力が作用する。
また、めり込み部１３に前記モーメントによって、圧縮方向の力（めり込み部１３が構造材２にめり込む方向の力）が作用するともにせん断力が作用する。そして、めり込み部１３を介して構造材２に圧縮方向の力が作用するとともに、せん断力が作用する。
したがって、横架材３に下方に向く外力が加わると、構造材２には、上部接合部１１ａから引張方向の力およびせん断力、めり込み部１３から圧縮方向の力およびせん断力として分散されて作用する。よって、従来と異なり、構造材２に発生する応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材２に横架材３を接合することができる。 As described above, according to the present embodiment, the upper joint portion 11a of the first joint plate 11 is joined to the side surface of the structural member 2, and the web 3b of the horizontal member 3 is joined to the lower joint portion 12a of the second joint plate 12. Since it is joined below the upper joint portion 11a, that is, as shown in FIG. 3, the upper joint portion 11a and the lower joint portion 12a are separated in the vertical direction and the left-right direction. When an external force directed downward is applied, a force in the tensile direction (force in a direction in which the upper joint portion 11a is separated from the structural material 2) acts on the upper joint portion 11a by a moment with the lower joint portion 12a as a fulcrum. Shear force acts. Then, a force in the tensile direction acts on the structural material 2 via the upper joint portion 11a, and a shearing force acts on the structural material 2.
In addition, due to the moment, a force in the compression direction (a force in a direction in which the recessed portion 13 is recessed into the structural member 2) acts on the recessed portion 13 and a shearing force acts. And while the force of a compression direction acts on the structural material 2 via the penetration part 13, a shear force acts.
Therefore, when an external force directed downward is applied to the horizontal member 3, the structural member 2 is dispersed and acts as a force and shear force in the tensile direction from the upper joint portion 11 a and a force and shear force in the compression direction from the recessed portion 13. To do. Therefore, unlike the conventional case, the stress concentration generated in the structural material 2 can be relaxed, so that the occurrence of damage such as splitting caused by the stress concentration can be suppressed and the horizontal member 3 can be joined to the structural material 2.

また、下フランジ３ａの切欠部１５に第２接合板１２が入り込んだ状態で第２接合板１２とウエブ３ｂが重なるので、構造材２に接合された接合金物１に、上方から横架材３をクレーン等によって吊り下げて落とし込んで接合する際に、下フランジ３ａを切欠部１５によって、第２接合板１２に干渉させことなく、落とし込んで当該下フランジ３ａの先端部を接合金物１の支持板１４に設置することができる。したがって、構造材２に接合された接合金物１に、上方から横架材３をクレーン等によって吊り下げて落とし込んで容易に接合できる。
また、横架材３の下フランジ３ａが支持板１４によって下方から支持されるので、当該横架材３をより強固に支持することができる。 Moreover, since the 2nd joining board 12 and the web 3b overlap in the state which the 2nd joining board 12 entered into the notch part 15 of the lower flange 3a, the horizontal member 3 is joined to the joining hardware 1 joined to the structural material 2 from the upper direction. The lower flange 3a is dropped by the notch 15 without interfering with the second joining plate 12 and the tip of the lower flange 3a is supported by the support plate of the joint hardware 1 when the hanger is suspended by a crane or the like. 14 can be installed. Accordingly, the horizontal member 3 can be suspended from the upper side by a crane or the like and dropped onto the metal fitting 1 bonded to the structural material 2 and can be easily bonded.
Moreover, since the lower flange 3a of the horizontal member 3 is supported from below by the support plate 14, the horizontal member 3 can be supported more firmly.

図４は第１の実施の形態の接合金物および横架材の接合構造の変形例を示す側面図である。
図４（ａ）に示す接合構造では、接合金物１の第２接合板１２が図１に示す第２接合板１２より幅広になっているとともに、第２接合板１２に設ける孔１２ｃ，１２ｃが左右方向に離間して配置され。これに合わせて横架材３のウエブ３ｂに設ける孔３ｄ，３ｄ（図示略）も左右に離間して配置されている。
これら孔３ｄ，１２ｃにボルトやドリフトピン等の止着材１７を挿入することによって、接合金物１の第２接合板１２の下部接合部１２ａに、横架材３のウエブ３ｂが前記上部接合部１１ａより下方において接合されている。 FIG. 4 is a side view showing a modified example of the joint structure of the joint metal and the horizontal member according to the first embodiment.
In the joining structure shown in FIG. 4A, the second joining plate 12 of the joint hardware 1 is wider than the second joining plate 12 shown in FIG. 1, and the holes 12c and 12c provided in the second joining plate 12 are provided. Separated in the left-right direction. Correspondingly, holes 3d and 3d (not shown) provided in the web 3b of the horizontal member 3 are also spaced apart from each other on the left and right.
By inserting fastening members 17 such as bolts and drift pins into the holes 3d and 12c, the web 3b of the horizontal member 3 is connected to the upper joint portion on the lower joint portion 12a of the second joint plate 12 of the joint hardware 1. It is joined below 11a.

このように構成することによって、上部接合部１１ａと下部接合部１２ａとの上下方向の距離が図３に示す場合に比して長くなる。このため上部接合部１１ａに作用する下部接合部１２ａを支点とするモーメントが大きくなり、接造金物１により大きな力が作用することで、接合金物１が変形し、エネルギーを吸収することで、他の部材の割裂の発生や成長を遅くすることができる。   By comprising in this way, the distance of the up-down direction of the upper junction part 11a and the lower junction part 12a becomes long compared with the case where it shows in FIG. For this reason, the moment with the lower joint 12a acting on the upper joint 11a as a fulcrum increases, and a large force acts on the joint metal 1 so that the joint metal 1 is deformed and absorbs energy. It is possible to slow down the generation and growth of the members.

図４（ｂ）に示す接合構造では、接合金物１の第２接合板１２を略三角形状に形成するともに、図４（ａ）に示す接合構造と同様に、第２接合板１２に設ける孔１２ｃ，１２ｃが左右方向に離間して配置され。これに合わせて横架材３のウエブ３ｂに設ける孔３ｄ，３ｄ（図示略）も左右に離間して配置されている。
第２接合板１２は、孔１２ｃ，１２ｃを設ける部分の幅が図４（ａ）に示す第２接合板１２と等しくなっているが、それより上部が上方に向かうほど第１接合板１１に近づく傾斜辺を有する三角形状に形成されている。
このように第２接合板１２を略三角形状に形成することによって、接合金物１の軽量化および接合金物１の断面を小さくすることによって、接合金物１の変形を誘起し、エネルギーを吸収することで、他の部材の割裂の発生や成長を抑制を図ることができる。 In the joining structure shown in FIG. 4B, the second joining plate 12 of the joint hardware 1 is formed in a substantially triangular shape, and the holes provided in the second joining plate 12 are the same as the joining structure shown in FIG. 12c and 12c are spaced apart in the left-right direction. Correspondingly, holes 3d and 3d (not shown) provided in the web 3b of the horizontal member 3 are also spaced apart from each other on the left and right.
The width of the portion where the holes 12c and 12c are provided in the second bonding plate 12 is equal to that of the second bonding plate 12 shown in FIG. 4 (a). It is formed in a triangular shape with an inclined side approaching.
In this way, by forming the second joining plate 12 in a substantially triangular shape, by reducing the weight of the joining hardware 1 and reducing the cross section of the joining hardware 1, the deformation of the joining hardware 1 is induced and energy is absorbed. Thus, it is possible to suppress the occurrence and growth of splitting of other members.

（第２の実施の形態）
図５および図６は第２の実施の形態を示すもので、図５は接合金物と横架材を示す分解斜視図、図６は横架材の接合構造を示す側面図である。なお、図５および図６において、上述した図１〜図３に示す第１の実施の形態と共通構成には同一符号を付してその説明を省略ないし簡略化する。 (Second Embodiment)
5 and 6 show a second embodiment. FIG. 5 is an exploded perspective view showing a metal fitting and a horizontal member, and FIG. 6 is a side view showing a connecting structure of the horizontal member. 5 and 6, the same reference numerals are given to the same components as those in the first embodiment shown in FIGS. 1 to 3, and the description thereof will be omitted or simplified.

本実施の形態における接合金物２１は鋼板等の金属板によって形成されたもので、構造材２に一側面が接合される第１接合板１１と、この第１接合板１１の他側面に直角に設けられて、横架材３が接合される２枚の第２接合板１２，１２とを備えている。
第２接合板１２，１２は第１接合板１１の他側面の幅方向の両縁部にそれぞれ当該他側面に対して略直角に設けられている。第２接合板１２，１２間の内法寸法（内法の距離）は、後述する横架材２３の幅とほぼ等しくなっている。
また、第２接合板１２の略下半分には、第１の実施の形態と同様に、２つの孔１２ｃ，１２ｃが上下に離間して設けられている。さらに、第１接合板１１の下縁部には、横架材３の先端部を下方から支持する支持板１４が設けられている。この支持板１４の先端面（第１接合板１１から遠い方の端面）は第２接合板１２の先端面（第１接合板１１から遠い方の端面）と面一になっているが、支持板１４の突出長さは第２接合板１２の先端面より短い場合も長い場合も接合が可能であり、突出長さについては上記の限りではない The metal joint 21 in the present embodiment is formed of a metal plate such as a steel plate, and is perpendicular to the first joint plate 11 whose one side surface is joined to the structural material 2 and the other side surface of the first joint plate 11. It is provided with two second joining plates 12 and 12 to which the horizontal member 3 is joined.
The second bonding plates 12 and 12 are provided at both edges in the width direction of the other side surface of the first bonding plate 11 substantially at right angles to the other side surface. The inner dimension (the inner distance) between the second joining plates 12 and 12 is substantially equal to the width of the horizontal member 23 described later.
Further, in the substantially lower half of the second bonding plate 12, two holes 12c and 12c are provided vertically apart from each other as in the first embodiment. Furthermore, a support plate 14 that supports the front end portion of the horizontal member 3 from below is provided at the lower edge portion of the first joining plate 11. The front end surface of the support plate 14 (the end surface far from the first joint plate 11) is flush with the front end surface of the second joint plate 12 (the end surface far from the first joint plate 11). The projecting length of the plate 14 can be joined regardless of whether it is shorter or longer than the distal end surface of the second joining plate 12, and the projecting length is not limited to the above.

横架材２３は、第１の実施の形態における横架材３であるＨ形鋼または軽量Ｈ形鋼３と、この軽量Ｈ形鋼３のウエブ３ｂの両側に設けられた木質の帯板２４，２４とを備えている。つまり、横架材２３は複合材である。
帯板２４の高さ（梁せい）は、上下のフランジ３ｃ，３ａ間の内法寸法(内法の距離)と等しく、幅はウエブ３ｂの側面からフランジ３ａ，３ｃの幅方向の端部までの内法寸法（内法の距離）と等しくなっている。したがって、帯板２４は上下のフランジ３ｃ，３ａとウエブ３ｂとで囲まれた部分に隙間なく嵌め込まれている。
また、帯板２４の先端部には、２つの孔２４ａ，２４ａが上下に離間し、かつ帯板２４を貫通して設けられている。孔２４ａ，２４ａは帯板２４の略下半分に設けられるとともに、ウエブ３ｂに設けられた孔３ｄ，３ｄ（図１参照）と同径でかつ同軸となっている。 The horizontal member 23 is an H-shaped steel or a lightweight H-shaped steel 3 which is the horizontal member 3 in the first embodiment, and a wooden strip 24 provided on both sides of the web 3b of the lightweight H-shaped steel 3. , 24. That is, the horizontal member 23 is a composite material.
The height of the band plate 24 (because of the beam) is equal to the inner dimension (inner distance) between the upper and lower flanges 3c, 3a, and the width is from the side surface of the web 3b to the end in the width direction of the flanges 3a, 3c. It is equal to the inner dimension of (the inner distance). Therefore, the band plate 24 is fitted in a portion surrounded by the upper and lower flanges 3c, 3a and the web 3b without any gap.
Further, two holes 24 a and 24 a are provided at the front end portion of the band plate 24 so as to be spaced apart from each other and penetrate the band plate 24. The holes 24a and 24a are provided in substantially the lower half of the band plate 24, and have the same diameter and the same axis as the holes 3d and 3d (see FIG. 1) provided in the web 3b.

このような構成の接合金物２１を使用して横架材２３を構造材２に接合するには、第１の実施の形態と同様に、まず、接合金物２１を構造材２の側面に接合する。すなわち、接合金物２１の第１接合板１１の一側面を構造材２の側面に当接するとともに、めり込み部１３を構造材２の側面にめり込ます。このように、めり込み部１３を構造材２の側面にめり込ませることで、接合金物２１を構造材２に仮止めできる。   In order to join the horizontal member 23 to the structural material 2 using the joining hardware 21 having such a configuration, first, the joining hardware 21 is joined to the side surface of the structural material 2 as in the first embodiment. . That is, one side surface of the first joining plate 11 of the joint metal 21 is brought into contact with the side surface of the structural material 2, and the recessed portion 13 is recessed into the side surface of the structural material 2. In this way, the fitting 21 can be temporarily fixed to the structural material 2 by causing the recessed portion 13 to be recessed into the side surface of the structural material 2.

次に、第１接合板１１の上部接合部１１ａの孔１１ｃに釘やビス、ボルト等の止着材１６を打ち込みまたはねじ込むことによって、接合面１１ｂを構造材２の側面に密着固定する。このようにして、構造材２の側面に第１接合板１１の上部接合部１１ａを接合する。   Next, the joining surface 11b is tightly fixed to the side surface of the structural material 2 by driving or screwing a fastening material 16 such as a nail, a screw, or a bolt into the hole 11c of the upper joint portion 11a of the first joining plate 11. In this manner, the upper joint portion 11a of the first joining plate 11 is joined to the side surface of the structural material 2.

次に、構造材２の側面に接合された接合金物２１の第２接合板１２，１２に横架材２３を接合する。すなわちまず、横架材２３をクレーン等によって吊り下げた状態で、接合金物２１の上方から第２接合板１２，１２間に向けて落とし込んで行き、当該横架材２３の下フランジ３ａの先端部を支持板１４に設置する。この際、横架材２３の帯板２４に設けられた孔２４ａ，２４ａ、ウエブ３ｂに設けられた孔３ｄ，３ｄ（図１参照）および接合金物２１の第２接合板１２に設けられた孔１２ｃ，１２ｃが同軸となるようにして、横架材２３の下フランジ３ａの先端部を支持板１４に設置する。
次に、同軸に配置されている孔１２ｃ，１２ｃ、孔２４ａ，２４ａおよび孔３ｄ，３ｄにドリフトピンやボルト等の止着材１７を挿入することによって、接合金物２１の第２接合板１２，１２の下部接合部１２ａに横架材２３を前記上部接合部１１ａより下方において接合する。 Next, the horizontal member 23 is joined to the second joining plates 12 and 12 of the joint hardware 21 joined to the side surface of the structural material 2. That is, first, in a state where the horizontal member 23 is suspended by a crane or the like, it is dropped from above the joint hardware 21 toward the second joint plates 12, 12, and the tip portion of the lower flange 3 a of the horizontal member 23. Is installed on the support plate 14. At this time, holes 24 a and 24 a provided in the strip 24 of the horizontal member 23, holes 3 d and 3 d (see FIG. 1) provided in the web 3 b, and holes provided in the second joint plate 12 of the joint hardware 21. The tip of the lower flange 3a of the horizontal member 23 is installed on the support plate 14 so that 12c and 12c are coaxial.
Next, by inserting a fastening material 17 such as a drift pin or a bolt into the holes 12c, 12c, holes 24a, 24a and holes 3d, 3d arranged coaxially, the second joining plate 12, The horizontal member 23 is joined to the lower joints 12a of the twelve parts below the upper joint 11a.

本実施の形態によれば、第１の実施の形態と同様に、構造材２には、上部接合部１１ａから引張方向の力およびせん断力、めり込み部１３から圧縮方向の力およびせん断力が分散されて作用する。したがって、従来と異なり、構造材２に発生する応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材２に横架材２３を接合することができる。
また、接合金物２１が２枚の第２接合板１２，１２を備えているので、横架材２３の両側面を第２接合板１２，１２によって挟み付けて、横架材２３を両第２接合板１２，１２の下部接合部１２ａ，１２ａに容易に接合できる。
なお、横架材２３は断面矩形状または断面矩形筒状であれば、軽量Ｈ形鋼３と帯板２４，２４とからなる複合材に限らず、木質の横架材であってもよいし、さらに鋼管で形成された横架材であってもよい。 According to the present embodiment, as in the first embodiment, the structural material 2 is dispersed with the tensile force and shear force from the upper joint portion 11a, and the compressive force and shear force from the recessed portion 13. Acted. Therefore, unlike the conventional case, stress concentration generated in the structural material 2 can be alleviated, so that the occurrence of damage such as splitting due to the stress concentration can be suppressed, and the horizontal member 23 can be joined to the structural material 2.
In addition, since the metal fitting 21 includes the two second bonding plates 12 and 12, both side surfaces of the horizontal member 23 are sandwiched between the second bonding plates 12 and 12, and the horizontal member 23 is attached to both the second bonding plates 12. The joining plates 12 and 12 can be easily joined to the lower joining portions 12a and 12a.
The horizontal member 23 is not limited to the composite material composed of the lightweight H-section steel 3 and the strips 24 and 24 as long as it has a rectangular cross section or a rectangular cross section, and may be a wooden horizontal member. Further, a horizontal member formed of a steel pipe may be used.

（第３の実施の形態）
図７および図８は第３の実施の形態を示すもので、図７は接合金物を示す斜視図、図８（ａ）は横架材の接合構造を示す側面図、図８（ｂ）は（ａ）におけるＡ−Ａ線視断面図である。
本実施の形態における接合金物３０は鋼板等の金属板によって形成されたもので、柱である構造材２に一側面が接合される第１接合板３１と、この第１接合板３１の他側面に直角に設けられて、横架材３４が接合される２枚の第２接合板３２，３２とを備えている。 (Third embodiment)
FIGS. 7 and 8 show a third embodiment. FIG. 7 is a perspective view showing a metal joint, FIG. 8 (a) is a side view showing a joint structure of horizontal members, and FIG. 8 (b) is a side view. It is an AA line sectional view in (a).
The metal joint 30 in the present embodiment is formed of a metal plate such as a steel plate, and a first joint plate 31 whose one side is joined to the structural material 2 that is a column, and the other side of the first joint plate 31. And two second joining plates 32 and 32 to which the horizontal member 34 is joined.

第１接合板３１は、縦長の矩形板状に形成され、接合金物３０の上部のみに設けられている。この第１接合板３１には、第１接合板３１を構造材２に接合する上部接合部３１ａが設けられている。つまり、接合金物３０の上部のみにおいて、第１接合板３１に上部接合部３１ａが設けられている。
この上部接合部３１ａは、第１接合板３１の一側面である接合面３１ｂと、この接合面３１ｂをもつ第１接合板３１を貫通し、かつ上下に離間して設けられた一対の孔３１ｃ，３１ｃとから構成されている。 The first bonding plate 31 is formed in a vertically long rectangular plate shape and is provided only on the upper portion of the bonding hardware 30. The first joint plate 31 is provided with an upper joint portion 31 a that joins the first joint plate 31 to the structural material 2. That is, the upper joint portion 31 a is provided on the first joint plate 31 only on the upper portion of the joint hardware 30.
The upper joint portion 31a passes through a joint surface 31b that is one side surface of the first joint plate 31 and the first joint plate 31 having the joint surface 31b, and is a pair of holes 31c that are provided apart from each other in the vertical direction. , 31c.

第２接合板３２，３２は、縦長の略矩形板状に形成され、第１接合板３１の他側面の幅方向の両縁部にそれぞれ当該他側面に対して略直角に設けられている。また、第２接合板３２，３２は、第１接合板３１よりも下方に延出しているが、この延出している第２接合板３２，３２の構造材２側の縁部間には第１接合板３１は存在しておらず、空間となっている。また、第２接合板３２，３２間の内法寸法（内法の距離）は、横架材３４の幅とほぼ等しくなっている。この横架材３４は、例えば木質の梁である。
また、第２接合板３２はその下部に後方に突出している突出板部３２ｄを有している。突出板部３２ｄには、その上部にドリフトピン等の止着材を受け入れる略半円状の受入凹部３２ｅと、この受入凹部３２ｅから斜め上方に突出して当該受入凹部３２に止着材を案内する傾斜部３２ｆが設けられている。この傾斜部３２ｆは下方に向かうほど受入凹部３２ｅに近づくように傾斜しており、受入凹部３２ｅに接続されている。 The second joining plates 32, 32 are formed in a vertically long, substantially rectangular plate shape, and are provided at both edges in the width direction of the other side surface of the first joining plate 31 so as to be substantially perpendicular to the other side surface. The second bonding plates 32 and 32 extend downward from the first bonding plate 31, and the second bonding plates 32 and 32 extend between the edges of the second bonding plates 32 and 32 on the structural material 2 side. The 1 joining board 31 does not exist, but is a space. Further, the internal dimension (internal distance) between the second joining plates 32 and 32 is substantially equal to the width of the horizontal member 34. The horizontal member 34 is, for example, a wooden beam.
Moreover, the 2nd joining board 32 has the protrusion board part 32d which protrudes back in the lower part. The protruding plate portion 32d has a substantially semicircular receiving recess 32e for receiving a fixing material such as a drift pin at the upper portion thereof, and projects obliquely upward from the receiving recess 32e to guide the fixing material to the receiving recess 32. An inclined portion 32f is provided. The inclined portion 32f is inclined so as to approach the receiving recess 32e as it goes downward, and is connected to the receiving recess 32e.

また、第２接合板３２の下部のみでかつ上部接合部３１ａより下方に、横架材３４を第２接合板３２に接合する下部接合部３２ａが設けられている。この下部接合部３２ａは、第２接合板３２の下部にある突出板部３２ｄを含む第２接合板３２の下部に設けられた接合面３２ｂと、この接合面３２ｂに第２接合板３２を貫通して設けられた孔３２ｃとから構成されている。この孔３２ｃは、前記受入凹部３２ｅの直下に設けられている。   In addition, a lower joint portion 32 a that joins the horizontal member 34 to the second joint plate 32 is provided only below the second joint plate 32 and below the upper joint portion 31 a. The lower joint portion 32a includes a joint surface 32b provided at a lower portion of the second joint plate 32 including a protruding plate portion 32d at the lower portion of the second joint plate 32, and the second joint plate 32 penetrates the joint surface 32b. And a hole 32c provided as a result. The hole 32c is provided directly below the receiving recess 32e.

また、接合金物３０の下部のみにおいて、第２接合板３２に、構造材２にめり込み可能なめり込み部３３が設けられている。このめり込み部３３は、上下に長尺でかつ第２接合板３２，３２の下部の構造材２側の両縁部からそれぞれ第１接合板３１と略直角に突出する一対の平板３３ａ，３３ａによって構成されている。また、平板３３ａ，３３ａは第２接合板３２と面一となっている。
めり込み部３３の上下の長さは、第２接合板３２の上下の長さの略半分となっている。また、めり込み部３３の突出長さは特に規定するものでないが、構造材２の側面にめり込み可能な長さに設定すればよい。 Further, only in the lower part of the metal fitting 30, the second bonding plate 32 is provided with a recessed portion 33 that can be recessed into the structural material 2. The indented portion 33 is formed by a pair of flat plates 33a and 33a that are long in the vertical direction and protrude substantially perpendicular to the first joint plate 31 from both edge portions on the structure material 2 side below the second joint plates 32 and 32, respectively. It is configured. Further, the flat plates 33 a and 33 a are flush with the second bonding plate 32.
The vertical length of the recessed portion 33 is substantially half of the vertical length of the second bonding plate 32. Further, the protruding length of the recessed portion 33 is not particularly specified, but may be set to a length that can be recessed into the side surface of the structural material 2.

このような構成の接合金物３０を使用して横架材３４を構造材２に接合するには、第１および第２の実施の形態と同様に、まず、接合金物３０を構造材２に側面に接合する。すなわち、接合金物３０の第１接合板３１の一側面を構造材２の上側の側面に当接するとともに、めり込み部３３を構造材２の下側の側面にめり込ます。このように、めり込み部３３を構造材２の側面にめり込ませることで、接合金物３０を構造材２に仮止めできる。   In order to join the horizontal member 34 to the structural material 2 using the joint hardware 30 having such a configuration, first, the joint hardware 30 is attached to the structural material 2 on the side surface in the same manner as in the first and second embodiments. To join. In other words, one side surface of the first joining plate 31 of the metal fitting 30 is brought into contact with the upper side surface of the structural material 2 and the indented portion 33 is recessed into the lower side surface of the structural material 2. In this way, the fitting 30 can be temporarily fixed to the structural member 2 by causing the recessed portion 33 to be recessed into the side surface of the structural member 2.

次に、第１接合板３１の上部接合部３１ａの孔３１ｃおよび構造材２に予め形成されている貫通孔にボルト３５を挿通し、当該ボルト３５にナットを螺合して締め付けることによって、接合面３１ｂを構造材２の側面に密着固定する。このようにして、構造材２の側面に第１接合板３１の上部接合部３１ａを接合する。   Next, the bolt 35 is inserted into the hole 31c of the upper joint portion 31a of the first joint plate 31 and the through-hole formed in the structural material 2 in advance, and the nut is screwed into the bolt 35 and tightened. The surface 31b is tightly fixed to the side surface of the structural material 2. In this manner, the upper joint portion 31a of the first joining plate 31 is joined to the side surface of the structural material 2.

次に、構造材２の側面に接合された接合金物３０の第２接合板３２，３２に横架材３４を接合する。すなわちまず、図８（ａ）に示すように、横架材３４に予め２つの貫通孔３４ｄ，３４ｄを設けておく。貫通孔３４ｄ，３４ｄは横架材３４をその厚さ方向に貫通する孔であり、横架材３４の側面の下部に上下に離間して設けられている。
また、横架材３４の先端面には図８（ｂ）に示すように、断面矩形状でかつ横架材３４を上下に貫通する切欠部３４ａが形成されている。また、この切欠部３４ａの底面には切欠部３４ａの対向する側面の延長上にスリット３４ｂ，３４ｂが形成されている。このスリット３４ｂ，３４ｂは接合金物３０の第２接合板３２，３２が挿入されるものである。 Next, the horizontal member 34 is bonded to the second bonding plates 32, 32 of the bonding hardware 30 bonded to the side surface of the structural material 2. That is, first, as shown in FIG. 8A, the horizontal member 34 is provided with two through holes 34d and 34d in advance. The through holes 34d and 34d are holes that penetrate the horizontal member 34 in the thickness direction, and are provided in the lower part of the side surface of the horizontal member 34 so as to be spaced apart vertically.
Further, as shown in FIG. 8 (b), a cutout portion 34 a that has a rectangular cross section and penetrates the horizontal member 34 up and down is formed on the front end surface of the horizontal member 34. Further, slits 34b and 34b are formed on the bottom surface of the notch 34a on the extension of the opposing side surface of the notch 34a. The slits 34b and 34b are used to insert the second joining plates 32 and 32 of the joining hardware 30.

そして、まず横架材３４の上側の貫通孔３４ｄにドリフトピン等の止着材３６を挿通する。
その後、横架材３４をクレーン等によって吊り下げた状態で、接合金物３０の上方から第２接合板３２，３２に向けて落とし込んで行き、ボルト３５の頭を横架材３４の切欠部３４ａに挿入するとともに、接合金物３０の第２接合板３２，３２を横架材３４のスリット３４ｂ，３４ｂに挿入し、さらに、第２接合板３２，３２の受入凹部３２ｅ，３２ｅに前記止着材３６を挿入する。これによって、横架材３４は接合金物３０に仮止めされる。
またこの際、第２接合板３２，３２の孔３２ｃ，３２ｃと横架材３４の下側の貫通孔３４ｄとが同軸に配置される。なお、止着材３６は傾斜部３２ｆに案内されて受入凹部３２ｅに挿入される。 First, a fastening material 36 such as a drift pin is inserted into the upper through hole 34 d of the horizontal member 34.
Thereafter, in a state where the horizontal member 34 is suspended by a crane or the like, it is dropped from above the metal fitting 30 toward the second bonding plates 32 and 32, and the head of the bolt 35 is inserted into the notch 34 a of the horizontal member 34. While inserting, the 2nd joining plates 32 and 32 of the metal fitting 30 are inserted in the slits 34b and 34b of the horizontal member 34, and further, the fastening material 36 is inserted into the receiving recesses 32e and 32e of the second joining plates 32 and 32. Insert. Thereby, the horizontal member 34 is temporarily fixed to the joint hardware 30.
At this time, the holes 32c, 32c of the second joining plates 32, 32 and the lower through-hole 34d of the horizontal member 34 are arranged coaxially. The fastening material 36 is guided by the inclined portion 32f and inserted into the receiving recess 32e.

次に、同軸に配置されている孔３２ｃ，３２ｃおよび前記下側の貫通孔３４ｄにドリフトピン等の止着材３６を挿入することによって、接合金物３０の第２接合板３２，３２の下部接合部３２ａに横架材３４を前記上部接合部３１ａより下方において接合する。なお、スリット３４ｂ、３４ｂを設けず、第２接合板３２，３２の内法寸法を横架材３４の幅と略同一にし、横架材３４の側面に第２接合板を設けても良い。   Next, the lower joining of the second joining plates 32 and 32 of the joint hardware 30 is performed by inserting a fastening material 36 such as a drift pin into the holes 32c and 32c arranged coaxially and the lower through-hole 34d. The horizontal member 34 is joined to the portion 32a below the upper joint 31a. In addition, without providing the slits 34b and 34b, the internal dimensions of the second joining plates 32 and 32 may be substantially the same as the width of the horizontal member 34, and the second joining plate may be provided on the side surface of the horizontal member 34.

本実施の形態によれば、第２の実施の形態と同様に、構造材２には、上部接合部３１ａから引張方向の力およびせん断力、めり込み部３３から圧縮方向の力およびせん断力が分散されて作用する。したがって、従来と異なり、構造材２に発生する応力集中を緩和できるので、応力集中に起因する割裂等の損傷の発生を抑制して、構造材２に横架材３４を接合することができる。
また、接合金物３０が２枚の第２接合板３２，３２を備えているので、横架材３４の両側面を第２接合板３２，３２によって挟み付けて、横架材３４を両第２接合板３２，３２の下部接合部１２ａ，１２ａに容易に接合できる。 According to the present embodiment, as in the second embodiment, the structural material 2 is dispersed with a tensile force and shear force from the upper joint portion 31a, and a compression force and shear force from the recessed portion 33. Acted. Therefore, unlike the conventional case, the stress concentration generated in the structural material 2 can be relaxed, so that the occurrence of damage such as splitting due to the stress concentration can be suppressed and the horizontal member 34 can be joined to the structural material 2.
In addition, since the metal fitting 30 includes the two second bonding plates 32 and 32, both side surfaces of the horizontal member 34 are sandwiched between the second bonding plates 32 and 32, and the horizontal member 34 is attached to both the second bonding members 32 and 32. The joining plates 32 and 32 can be easily joined to the lower joining portions 12a and 12a.

図９は第３の実施の形態の接合金物の２つの変形例を示す斜視図である。
図９（ａ）に示す第１変形例の接合金物３０では、第１接合板３１の上下の長さが、第２接合板３２の上下の長さと等しくなっており、第１接合板３１の下縁部にめり込み部３３ｂが設けられている。このめり込み部３３ｂは、横長の矩形板状に形成されており、第１接合板３１の幅方向に沿って延在するとともに、第１接合板３１と直角に配置されている。 FIG. 9 is a perspective view showing two modifications of the metal joint according to the third embodiment.
In the joint hardware 30 of the first modification shown in FIG. 9A, the upper and lower lengths of the first joint plate 31 are equal to the upper and lower lengths of the second joint plate 32. A recessed portion 33b is provided at the lower edge portion. The recessed portion 33 b is formed in a horizontally long rectangular plate shape, extends along the width direction of the first joint plate 31, and is disposed at a right angle to the first joint plate 31.

図９（ｂ）に示す第２変形例の接合金物３０でも、第１変形例と同様に、第１接合板３１の上下の長さが、第２接合板３２の上下の長さと等しくなっているが、めり込み部３８の構成が前記めり込み部３３ｂと異なる。
すなわち、めり込み部３８は第１接合板３１の一側面から斜め下方に突出する矩形板状の傾斜板３８ａと、第１接合板３１の一側面から斜め上方に突出する矩形板状の傾斜板３８ｂとから構成され、側面視三角形状に形成されている。
また、めり込み部３８は、第１接合板３１の下部のみでかつ第２接合板３２の孔３２ｃより上側において、第１接合板３１の幅方向に延在して設けられている。また、このめり込み部３８の数は軸方向に１つ以上あればよい。このようにめり込み部３８は側面視三角形状になって先端が尖った形状になっているので、構造材２にめり込み易いという利点がある。
なお、２つの変形例の接合金物３０，３０においても、第３の実施の形態と同様の効果を得ることができる。 9B, the upper and lower lengths of the first bonding plate 31 are equal to the upper and lower lengths of the second bonding plate 32 as in the first modification. However, the configuration of the recessed portion 38 is different from that of the recessed portion 33b.
That is, the recessed portion 38 includes a rectangular plate-shaped inclined plate 38a that protrudes obliquely downward from one side of the first bonding plate 31, and a rectangular plate-shaped inclined plate 38b that protrudes obliquely upward from one side of the first bonding plate 31. And is formed in a triangular shape in side view.
Further, the recessed portion 38 is provided to extend in the width direction of the first bonding plate 31 only at the lower portion of the first bonding plate 31 and above the hole 32 c of the second bonding plate 32. The number of the recessed portions 38 may be one or more in the axial direction. As described above, the indented portion 38 has a triangular shape in a side view and has a pointed tip, and thus has an advantage that it can be easily indented into the structural member 2.
Note that the same effects as those of the third embodiment can also be obtained in the joint hardware 30 and 30 of the two modifications.

１，２１，３０ 接合金物
２ 構造材
３，２３，３４ 横架材
３ａ 下フランジ
３ｂ ウエブ
１１，３１ 第１接合板
１１ａ，３１ａ 上部接合部
１２，３２ 第２接合板
１２ａ，３２ａ 下部接合部
１３，３３，３３ｂ，３８ めり込み部
１４ 支持板部
１５ 切欠部 1, 21, 30 Joint metal 2 Structural material 3, 23, 34 Horizontal member 3a Lower flange 3b Web 11, 31 First joint plate 11a, 31a Upper joint portion 12, 32 Second joint plate 12a, 32a Lower joint portion 13 , 33, 33b, 38 Recessed portion 14 Support plate portion 15 Notched portion

Claims (6)

構造材に横架材を接合するための接合金物であって、
前記構造材に一側面が接合される第１接合板と、この第１接合板の他側面に直角に設けられて、前記横架材が接合される第２接合板とを備え、
前記接合金物の上部のみにおいて、前記第１接合板に、当該第１接合板を前記構造材に接合する上部接合部が設けられ、
前記接合金物の下部のみにおいて、前記第１接合板または第２接合板に、前記構造材にめり込み可能なめり込み部が設けられ、
前記第２接合板の下部のみでかつ前記上部接合部より下方に、前記横架材を前記第２接合板に接合する下部接合部が設けられていることを特徴とする接合金物。 A joining hardware for joining a horizontal member to a structural material,
A first bonding plate having one side surface bonded to the structural material, and a second bonding plate provided at a right angle to the other side surface of the first bonding plate and to which the horizontal member is bonded;
Only in the upper part of the metal fitting, the first bonding plate is provided with an upper bonding portion for bonding the first bonding plate to the structural material,
Only in the lower part of the metal joint, the first joint plate or the second joint plate is provided with a dent portion that can be sunk into the structural material,
A metal joint, wherein a lower joint for joining the horizontal member to the second joint plate is provided only at the lower part of the second joint plate and below the upper joint. 前記第１接合板に、前記第２接合板が１枚設けられていることを特徴とする請求項１に記載の接合金物。   The metal fitting according to claim 1, wherein the first bonding plate is provided with one second bonding plate. 前記第１接合板に、前記第２接合板が２枚互いに平行に設けられていることを特徴とする請求項１に記載の接合金物。   2. The metal joint according to claim 1, wherein the second joint plate is provided in parallel with each other on the first joint plate. 前記第１接合板の下縁部に、前記横架材を下方から支持する支持板が設けられていることを特徴とする請求項１〜３のいずれか１項に記載の接合金物。   The metal joint according to any one of claims 1 to 3, wherein a support plate that supports the horizontal member from below is provided at a lower edge portion of the first joint plate. 構造材に横架材を請求項１〜３のいずれか１項に記載の接合金物によって接合してなる横架材の接合構造であって、
前記構造材に、前記接合金物の前記第１接合板の前記上部接合部が接合されるとともに前記めり込み部がめり込んでおり、
前記接合金物の前記第２接合板の前記下部接合部に前記横架材が接合されていることを特徴とする横架材の接合構造。 It is the joining structure of the horizontal member formed by joining the horizontal member to the structural member by the joint metal fitting according to any one of claims 1 to 3.
In the structural material, the upper joint portion of the first joint plate of the joint hardware is joined and the indented portion is indented,
The horizontal member joining structure, wherein the horizontal member is joined to the lower joint part of the second joining plate of the joint metal. 構造材に横架材を請求項４項に記載の接合金物によって接合してなる横架材の接合構造であって、
前記横架材が軽量Ｈ形鋼によって形成されるとともに、前記横架材の下フランジの長手方向の先端部に切欠部が形成され、
前記構造材に、前記接合金物の前記第１接合板の前記上部接合部が接合されるとともに前記めり込み部がめり込んでおり、
前記接合金物の前記第２接合板の前記下部接合部に前記横架材のウエブが接合され、
前記下フランジの切欠部に前記第２接合板が入り込んだ状態で前記第２接合板と前記ウエブが重なるとともに、前記下フランジの先端部が前記接合金物の前記支持板に設置されていることを特徴とする横架材の接合構造。 It is a joining structure of a horizontal member formed by joining a horizontal member to a structural material with the joint metal fitting according to claim 4,
The horizontal member is formed of lightweight H-shaped steel, and a notch is formed at the longitudinal tip of the lower flange of the horizontal member,
In the structural material, the upper joint portion of the first joint plate of the joint hardware is joined and the indented portion is indented,
The web of the horizontal member is bonded to the lower bonding portion of the second bonding plate of the bonding metal,
The second joint plate and the web overlap with the second joint plate inserted into the notch of the lower flange, and the tip of the lower flange is installed on the support plate of the joint hardware. Characteristic horizontal structure joining structure.
JP2017052327A 2017-03-17 2017-03-17 Joint metal and junction structure of horizontal member Pending JP2018155013A (en)

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JP2021059837A (en) * 2019-10-02 2021-04-15 日本製鉄株式会社 Beam/joist jointing structure and joist

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JPH08209801A (en) * 1995-02-07 1996-08-13 Kajima Corp Connecting method for steel joint section
JPH0941485A (en) * 1995-07-28 1997-02-10 Sekisui House Ltd Metallic joint for wooden framework
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JP2020070638A (en) * 2018-10-31 2020-05-07 日鉄鋼板株式会社 Connecting structure and connecting tool for pillar and horizontal member
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JP2021059837A (en) * 2019-10-02 2021-04-15 日本製鉄株式会社 Beam/joist jointing structure and joist

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