JP7394256B1 - Joint structure - Google Patents

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JP7394256B1
JP7394256B1 JP2023137062A JP2023137062A JP7394256B1 JP 7394256 B1 JP7394256 B1 JP 7394256B1 JP 2023137062 A JP2023137062 A JP 2023137062A JP 2023137062 A JP2023137062 A JP 2023137062A JP 7394256 B1 JP7394256 B1 JP 7394256B1
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joint
wooden
joining
wooden beam
plate
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圭介 山口
建 大角
真次 高谷
昌典 久田
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Kajima Corp
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Abstract

【課題】容易に施工を行える柱梁の接合構造等を提供する。【解決手段】接合構造１は、木質柱２と木質梁４をコンクリート製の接合部３により接合するものである。接合構造１では、木質梁４の接合部３側の端部に、接合金物８が設けられ、接合金物８から接合部３の水平方向の途中まで突出する孔開き鋼板ジベル８４が、接合部３に埋設され、接合部３の両側の木質梁４から突出する水平鉄筋１０が、接合部３内で継手部１１により接続される。【選択図】図１[Problem] To provide a column and beam joint structure etc. that can be easily constructed. A joint structure 1 is one in which a wooden column 2 and a wooden beam 4 are joined by a concrete joint 3. In the joint structure 1, a joint hardware 8 is provided at the end of the wooden beam 4 on the joint part 3 side, and a perforated steel plate dowel 84 that protrudes from the joint hardware 8 halfway in the horizontal direction of the joint part 3 is attached to the joint part 3. Horizontal reinforcing bars 10 are embedded in the joint 3 and protrude from the wooden beams 4 on both sides of the joint 3 and are connected by a joint 11 within the joint 3. [Selection diagram] Figure 1

Description

本発明は、柱梁の接合構造等に関する。 The present invention relates to a column-beam joint structure and the like.

木質柱と木質梁による木造ラーメン架構では、木質柱と木質梁をコンクリート製の接合部（仕口部）を介して接合することがある。 In a wooden rigid-frame frame made of wooden columns and wooden beams, the wooden columns and wooden beams are sometimes joined via concrete joints (shiguchi parts).

特許文献１には、接合部の両側に設けた突出金物によって接合部とその両側の木質梁との接続を行い、これらの突出金物同士を接合部に埋設される通しボルトによって連結し、且つ、接合部の上下の木質柱については、これらの木質柱に鋼棒のネジ鉄筋部を埋設し、木質柱から突出する当該鋼棒の異形鉄筋部を、接合部に埋設される異形鉄筋の両端と鉄筋継手により接続することが記載されている。 Patent Document 1 discloses that the joint and the wooden beams on both sides are connected by protruding hardware provided on both sides of the joint, and these protruding hardware are connected by through bolts embedded in the joint, and For the wooden columns above and below the joint, the threaded reinforcing bars of the steel rods are buried in these wooden columns, and the deformed reinforcing bars of the steel rods that protrude from the wooden columns are connected to both ends of the deformed reinforcing bars buried in the joint. It is stated that the connection is to be made by reinforcing joints.

特許第6638905号公報Patent No. 6638905

しかしながら、上記の接合構造では、接合部内の通しボルトの本数が多くなり、施工に手間がかかる。柱梁の接合部では、係る課題を解決し、容易に施工を行える構造が求められていた。 However, in the above-mentioned joint structure, the number of through bolts in the joint portion is large, and construction is labor-intensive. At the joints between columns and beams, there was a need for a structure that would solve these problems and be easy to construct.

本発明は上記の課題に鑑みてなされたものであり、容易に施工を行える柱梁の接合構造等を提供することである。 The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a column-beam joint structure etc. that can be easily constructed.

前述した目的を達成するための第１の発明は、柱と木質梁をコンクリート製の接合部により接合する接合構造であって、前記木質梁の前記接合部側の端部に、接合金物が設けられ、前記接合金物から前記接合部の水平方向の途中まで突出するせん断抵抗部材が、前記接合部に埋設され、前記接合部の両側の前記木質梁から突出する水平鉄筋が、前記接合部内で継手部により接続され、前記接合金物は、前記木質梁の端面に設けられる端板と、前記木質梁の前記接合部側の端部に埋設される接合板と、を有し、前記水平鉄筋は前記端板を貫通し、前記接合板が前記端板に対して直交するように、前記接合板の端部が前記端板に固定されることを特徴とする接合構造である。
また、前記接合板と前記せん断抵抗部材の高さ方向の設置範囲または梁幅方向の位置が異なってもよい。
第２の発明は、柱と木質梁をコンクリート製の接合部により接合する接合構造であって、前記木質梁の前記接合部側の端部に、接合金物が設けられ、前記接合金物から前記接合部の水平方向の途中まで突出するせん断抵抗部材が、前記接合部に埋設され、前記接合部の両側の前記木質梁から突出する水平鉄筋が、前記接合部内で継手部により接続され、前記接合金物は、前記木質梁の端面に設けられる端板と、前記木質梁の前記接合部側の端部に埋設される接合板と、前記端板の下端部に接合され、前記木質梁の荷重支持部の前記接合部側の端部の下面に配置されるフランジと、を有し、前記水平鉄筋は前記端板を貫通し、前記フランジの下面が、前記木質梁の下面の難燃層で覆われることを特徴とする接合構造である。
前記フランジの幅が、前記木質梁の幅よりも前記木質梁の両側面の難燃層の厚み分小さいことも望ましい。
前記フランジが、前記木質梁の荷重支持部の下面に設けられた窪みに配置されることも望ましい。 A first invention for achieving the above-mentioned object is a joint structure in which a column and a wooden beam are joined by a concrete joint, wherein a joining hardware is provided at an end of the wooden beam on the joint side. A shear resistance member protruding from the joining hardware part way in the horizontal direction of the joint is embedded in the joint, and horizontal reinforcing bars protruding from the wooden beams on both sides of the joint are connected to the joint within the joint. The joint hardware includes an end plate provided on the end surface of the wooden beam, and a joint plate embedded in the end of the wooden beam on the joint side, and the horizontal reinforcing bar is connected to the The joint structure is characterized in that an end portion of the joint plate is fixed to the end plate so as to penetrate through the end plate and the joint plate is perpendicular to the end plate .
Moreover, the installation range in the height direction or the position in the beam width direction of the bonding plate and the shear resistance member may be different.
A second invention is a joint structure in which a column and a wooden beam are joined by a joint made of concrete, wherein a joining hardware is provided at an end of the wooden beam on the joint side, and the joining hardware is connected to the joining part. A shear resistance member protruding halfway in the horizontal direction of the joint is embedded in the joint, horizontal reinforcing bars protruding from the wooden beams on both sides of the joint are connected by a joint within the joint, and the joint hardware includes an end plate provided on the end face of the wooden beam, a joint plate buried in the end of the wooden beam on the joint side, and a load supporting portion of the wooden beam that is joined to the lower end of the end plate. a flange disposed on the lower surface of the end on the joint side side, the horizontal reinforcing bar penetrates the end plate, and the lower surface of the flange is covered with a flame retardant layer on the lower surface of the wooden beam. This is a joint structure characterized by the following.
It is also desirable that the width of the flange is smaller than the width of the wooden beam by the thickness of flame retardant layers on both sides of the wooden beam.
It is also desirable that the flange is disposed in a recess provided on the lower surface of the load-bearing portion of the wooden beam.

本発明では、柱と木質梁をコンクリート製の接合部を介して接合する際に、木質梁の接合部側の端部に接合金物を設け、当該接合金物から突出するせん断抵抗部材を接合部のコンクリート内に埋設させる。また接合部の両側の木質梁から突出する水平鉄筋を、接合部内で継手部により接続する。上記の接合金物により木質梁と接合部の間でせん断力を伝達することで、接合部内に多数の通しボルトや水平鉄筋を配置する必要が無く、接合部内の構成を簡素化でき、施工が容易になる。また本発明では、木質梁から突出する水平鉄筋を継手部により接続するので、一方の木質梁を梁軸方向に移動させて当該木質梁から突出する水平鉄筋を他方の木質梁の孔に挿入するなどの必要が無く、木質梁を単に上から落とし込むことで設置でき、施工が容易になる。 In the present invention, when joining a column and a wooden beam through a concrete joint, a joining hardware is provided at the end of the wooden beam on the joint side, and a shear resistance member protruding from the joining hardware is attached to the joint. Buried in concrete. Additionally, the horizontal reinforcing bars protruding from the wooden beams on both sides of the joint are connected by joints within the joint. By transmitting shear force between the wooden beam and the joint using the above joint hardware, there is no need to place numerous through bolts or horizontal reinforcing bars within the joint, simplifying the configuration within the joint and facilitating construction. become. Furthermore, in the present invention, since the horizontal reinforcing bars protruding from the wooden beams are connected by joints, one wooden beam is moved in the beam axis direction and the horizontal reinforcing bars protruding from the wooden beam are inserted into the holes of the other wooden beam. There is no need to do this, and the wooden beams can be installed by simply dropping them from above, making construction easier.

前記せん断抵抗部材は、鉛直方向に沿って設けられた孔開き鋼板ジベルであることが望ましい。
この場合、孔開き鋼板ジベルの孔に充填された接合部のコンクリートのせん断抵抗によりせん断力を確実に伝達でき、またせん断抵抗部材の構成も高耐力・高剛性なものになる。 It is preferable that the shear resistance member is a perforated steel dowel provided along the vertical direction.
In this case, the shear force can be reliably transmitted due to the shear resistance of the concrete at the joint filled in the hole of the perforated steel plate dowel, and the shear resistance member has a structure with high strength and high rigidity.

前記接合部の下方の柱から前記接合部の鉛直方向の途中まで突出するせん断抵抗部材が、前記接合部に埋設されることも望ましい。
上記のせん断抵抗部材により柱と接合部の間でせん断力を伝達することで、接合部内に多数の鉛直鉄筋等を配置する必要が無く、接合部内の構成を簡素化でき、施工が容易になる。 It is also desirable that a shear resistance member protruding from a column below the joint to a midway point in the vertical direction of the joint is embedded in the joint.
By transmitting shear force between the column and the joint using the above-mentioned shear resistance member, there is no need to arrange many vertical reinforcing bars etc. within the joint, simplifying the configuration inside the joint and making construction easier. .

前記接合部の上下の柱の間で一体に連続する鉛直鉄筋が、前記接合部を貫通するように配置されることも望ましい。
また前記の鉛直鉄筋に関しても、上下の柱の間に一体の鉛直鉄筋を連続するように配置することで、接合部内で鉛直鉄筋同士を機械継手等で接続する必要が無く、施工が容易になる。 It is also desirable that a vertical reinforcing bar that is integrally continuous between the columns above and below the joint be arranged so as to penetrate through the joint.
Regarding the vertical reinforcing bars mentioned above, by arranging one vertical reinforcing bar continuously between the upper and lower columns, there is no need to connect the vertical reinforcing bars with mechanical joints, etc. within the joint, making construction easier. .

前記接合金物は、前記木質梁の端面に設けられる端板と、前記木質梁の前記接合部側の端部に埋設される接合板と、を有し、前記水平鉄筋は前記端板を貫通する。また、前記端板の上下の端部に接合され、前記木質梁の荷重支持部の前記接合部側の端部の上面と下面に配置されるフランジを有し、上下の前記フランジで前記荷重支持部が挟み込まれることも望ましい。
接合金物は、上記の接合板によって木質梁に確実に接合することができ、また上下のフランジにより、木質梁に加わる長期荷重と地震時のせん断力の双方を支持できる。 The joint hardware includes an end plate provided on the end surface of the wooden beam, and a joint plate embedded in the end of the wooden beam on the joint side, and the horizontal reinforcing bar penetrates the end plate. do. Further, it has flanges that are joined to the upper and lower ends of the end plate and arranged on the upper and lower surfaces of the end of the joint part side of the load support part of the wooden beam , and the upper and lower flanges support the load. It is also desirable that the parts be sandwiched .
The joining hardware can be reliably joined to the wooden beam by the above-mentioned joining plate, and the upper and lower flanges can support both the long-term load applied to the wooden beam and the shear force during an earthquake.

前記接合部の上方にスラブが設けられ、前記スラブから突出する凸部が、前記スラブの上方の柱に埋設されることも望ましい。
これにより、スラブの上方の柱とスラブの間でせん断力を伝達でき、前記の鉛直鉄筋等の本数を減らすことができる。 It is also desirable that a slab be provided above the joint, and that a convex portion protruding from the slab be buried in a column above the slab.
Thereby, shear force can be transmitted between the column above the slab and the slab, and the number of vertical reinforcing bars and the like can be reduced.

本発明によれば、容易に施工を行える柱梁の接合構造等を提供できる。 According to the present invention, it is possible to provide a column-beam joint structure etc. that can be easily constructed.

接合構造１を示す図。FIG. 1 is a diagram showing a joining structure 1; 接合金物８を示す図。FIG. 8 is a diagram showing a joining hardware 8; 接合構造１の構築方法を示す図。1 is a diagram showing a method of constructing a joining structure 1. FIG. 接合構造１ａを示す図。A diagram showing a joining structure 1a. 接合金物８ａを示す図。A diagram showing a joining metal fitting 8a. 接合構造１ｂを示す図。A diagram showing a joining structure 1b. 接合構造１ｂの構築方法を示す図。The figure which shows the construction method of the joining structure 1b. 接合構造１ｃを示す図。A diagram showing a joining structure 1c. 接合金物８ｃを示す図。A diagram showing a joining metal fitting 8c.

以下、図面に基づいて本発明の実施形態について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

［第１の実施形態］
（１．接合構造１）
図１（ａ）は、本発明の第１の実施形態に係る接合構造１を示す図である。この接合構造１は、木質柱２と木質梁４をコンクリート製の接合部３を介して接合するものである。図１（ｂ）は木質梁４の鉛直断面であり、図１（ｃ）は接合部３の水平断面である。図１（ｂ）、（ｃ）はそれぞれ図１（ａ）の線Ａ－Ａ、Ｂ－Ｂによる断面に対応する。また図１（ａ）は図１（ｃ）の線Ｃ－Ｃによる断面に対応する。 [First embodiment]
(1.Joint structure 1)
FIG. 1(a) is a diagram showing a joining structure 1 according to a first embodiment of the present invention. This joint structure 1 connects a wooden column 2 and a wooden beam 4 via a joint 3 made of concrete. 1(b) is a vertical cross section of the wooden beam 4, and FIG. 1(c) is a horizontal cross section of the joint 3. FIGS. 1(b) and 1(c) correspond to cross sections taken along lines AA and BB in FIG. 1(a), respectively. Further, FIG. 1(a) corresponds to a cross section taken along line CC in FIG. 1(c).

木質柱２は木質材による柱であり、木質梁４は木質材による梁である。木質材としては、LVL(Laminated Veneer Lumber)やCLT(Cross Laminated Timber)、BP材、集成材等を用いることができるが、特に限定されない。 The wooden pillar 2 is a pillar made of wood, and the wooden beam 4 is a beam made of wood. As the wood material, LVL (Laminated Veneer Lumber), CLT (Cross Laminated Timber), BP material, laminated wood, etc. can be used, but there is no particular limitation.

木質柱２は、軸方向と直交する断面（以下、単に断面という）が矩形状であり、断面の中央部に位置する荷重支持部２１の周囲に、難燃層２２を設けた構成となっている。難燃層２２には薬剤を含浸した木質材が用いられる。 The wooden column 2 has a rectangular cross section perpendicular to the axial direction (hereinafter simply referred to as the cross section), and has a flame retardant layer 22 provided around a load support portion 21 located at the center of the cross section. There is. The flame retardant layer 22 is made of wood impregnated with a chemical.

木質梁４も、矩形状の断面の中央部に位置する荷重支持部４１の周囲に、上記と同様の難燃層４２を設けた構成となっている。ただし、荷重支持部４１の上面はスラブ５に接しており、難燃層４２は省略される。 The wooden beam 4 also has a structure in which a flame retardant layer 42 similar to the above is provided around a load support portion 41 located at the center of the rectangular cross section. However, the upper surface of the load support part 41 is in contact with the slab 5, and the flame retardant layer 42 is omitted.

接合構造１では、接合部３の上下に木質柱２が配置される。接合部３の平面は矩形状であり、その寸法は木質柱２の断面の寸法に対応する。接合部３のコンクリートは、その上方に設けられるスラブ５のコンクリートと連続しており、上側の木質柱２はスラブ５上に配置される。 In the joint structure 1, wooden pillars 2 are arranged above and below the joint part 3. The plane of the joint 3 is rectangular, and its dimensions correspond to the dimensions of the cross section of the wooden column 2. The concrete of the joint 3 is continuous with the concrete of the slab 5 provided above, and the upper wooden column 2 is placed on the slab 5.

上下の木質柱２の接合部３側の端部には、一体に連続する鉛直鉄筋６の両端部が埋設される。当該鉛直鉄筋６は、接合部３およびスラブ５を貫通するように配置され、接合部３およびスラブ５のコンクリート内に埋設される。鉛直鉄筋６は異形鉄筋であってもよいし、ネジ鉄筋であってもよいが、前記の特許文献１のように、異形鉄筋部とネジ鉄筋部を途中で切り替える必要はない。 Both ends of an integrally continuous vertical reinforcing bar 6 are embedded in the ends of the upper and lower wooden pillars 2 on the side of the joint 3. The vertical reinforcing bars 6 are arranged so as to penetrate the joint 3 and the slab 5, and are buried in the concrete of the joint 3 and the slab 5. The vertical reinforcing bars 6 may be deformed reinforcing bars or threaded reinforcing bars, but there is no need to switch between the deformed reinforcing bars and the threaded reinforcing bars midway, as in Patent Document 1 mentioned above.

鉛直鉄筋６の両端部は、上下の木質柱２の荷重支持部２１とGIR(Glued in Rod)接合される。GIR(Glued in Rod)接合は、荷重支持部２１に形成された孔に鉛直鉄筋６の端部を挿入し、当該孔に接着材を充填する接合方法である。図１（ｃ）に示すように、鉛直鉄筋６は、平面において、矩形の角部と矩形の各辺の中央部に当たる計８箇所で配置され、これらの鉛直鉄筋６を取り囲むように、接合部３のコンクリート内にフープ筋７が埋設される。フープ筋７は、上下に間隔を空けて複数段配置される。 Both ends of the vertical reinforcing bar 6 are connected to the load supporting portions 21 of the upper and lower wooden columns 2 by GIR (Glued in Rod). GIR (Glued in Rod) joining is a joining method in which the end of the vertical reinforcing bar 6 is inserted into a hole formed in the load support part 21, and the hole is filled with adhesive. As shown in FIG. 1(c), the vertical reinforcing bars 6 are arranged at a total of eight locations, which correspond to the corners of the rectangle and the center of each side of the rectangle, on the plane, and the joints are placed so as to surround these vertical reinforcing bars 6. The hoop reinforcement 7 is buried in the concrete of 3. The hoop lines 7 are arranged in multiple stages with vertical intervals.

下側の木質柱２の荷重支持部２１の上面には円形鋼管９の下部が埋設される。円形鋼管９の上部は、荷重支持部２１から接合部３の鉛直方向の途中まで凸状に突出し、この凸部（せん断抵抗部材）が接合部３のコンクリートに埋設されることで、接合部３とその下方の木質柱２との間でせん断力の伝達が可能となる。 The lower part of the circular steel pipe 9 is buried in the upper surface of the load support part 21 of the lower wooden column 2. The upper part of the circular steel pipe 9 protrudes in a convex shape from the load support part 21 to the middle of the joint part 3 in the vertical direction, and by embedding this convex part (shear resistance member) in the concrete of the joint part 3, the joint part 3 Transmission of shear force becomes possible between the wooden column 2 and the wooden column 2 below.

円形鋼管９はスラブ５の上面にも埋設され、当該円形鋼管９の上部はスラブ５から凸状に突出する。この凸部が上側の木質柱２の荷重支持部２１に挿入されることで、スラブ５とその上方の木質柱２との間でもせん断力の伝達が可能となる。 The circular steel pipe 9 is also buried in the upper surface of the slab 5, and the upper part of the circular steel pipe 9 protrudes convexly from the slab 5. By inserting this convex portion into the load support portion 21 of the upper wooden column 2, it becomes possible to transmit shear force between the slab 5 and the wooden column 2 above it.

木質梁４は、接合部３の左右両側に配置される。左右の木質梁４の接合部３側の端部には、接合金物８が設けられる。接合金物８は、木質梁４のせん断力を一旦支持し、これを接合部３に伝達する機能を有する。 The wooden beams 4 are arranged on both left and right sides of the joint 3. Joining hardware 8 is provided at the ends of the left and right wooden beams 4 on the joint portion 3 side. The joining hardware 8 has the function of once supporting the shearing force of the wooden beam 4 and transmitting this to the joining part 3.

図２は接合金物８を示す図である。接合金物８は鋼板等を組み合わせて形成され、端板８１、接合板８２、フランジ８３、孔開き鋼板ジベル８４等を有する。 FIG. 2 is a diagram showing the joining metal fitting 8. As shown in FIG. The joining hardware 8 is formed by combining steel plates and the like, and has an end plate 81, a joining plate 82, a flange 83, a perforated steel plate dowel 84, and the like.

端板８１は、木質梁４の荷重支持部４１の接合部３側の端面に沿って配置される板材である。接合板８２とフランジ８３は、端板８１から木質梁４側に突出する板材であり、接合板８２は、板面を鉛直方向として端板８１の幅方向の中央部分に配置される。フランジ８３は、端板８１および接合板８２の上下の端部に接合される水平方向の板材である。 The end plate 81 is a plate material arranged along the end surface of the load support part 41 of the wooden beam 4 on the joint part 3 side. The joining plate 82 and the flange 83 are plate materials that protrude from the end plate 81 toward the wooden beam 4 side, and the joining plate 82 is arranged at the center portion of the end plate 81 in the width direction with the plate surface in the vertical direction. The flange 83 is a horizontal plate member that is joined to the upper and lower ends of the end plate 81 and the joining plate 82.

接合金物８は、木質梁４の荷重支持部４１から突出する水平鉄筋１０を端板８１の孔８１１に通し、接合板８２を荷重支持部４１に形成された梁軸方向のスリット４１１に挿入して荷重支持部４１の接合部３側の端部に配置される。この際、接合板８２に設けられた孔８２１と、荷重支持部４１に設けられた木質梁４の幅方向の孔４１３が連続する。ドリフトピン８５をこれらの孔８２１、４１３に通して配置することで、接合金物８が荷重支持部４１の接合部３側の端部に固定される。 The joining hardware 8 is constructed by passing the horizontal reinforcing bar 10 protruding from the load supporting part 41 of the wooden beam 4 through the hole 811 of the end plate 81, and inserting the joining plate 82 into the slit 411 formed in the load supporting part 41 in the beam axis direction. It is arranged at the end of the load support part 41 on the joint part 3 side. At this time, the hole 821 provided in the joint plate 82 and the hole 413 provided in the load support part 41 in the width direction of the wooden beam 4 are continuous. By disposing the drift pin 85 through these holes 821 and 413, the joint metal fitting 8 is fixed to the end of the load support part 41 on the joint part 3 side.

フランジ８３は、荷重支持部４１の上下に設けられた窪み４１２に配置される。上下のフランジ８３は、木質梁４の長期荷重や地震時のせん断力を受けるために設けられており、これらのフランジ８３で受けたせん断力は、接合板８２を介して孔開き鋼板ジベル８４に伝達される。窪み４１２を設けることにより、上下のフランジ８３を荷重支持部４１の上下面と同一面内に収めることができるが、窪み４１２を省略し、上下のフランジ８３を荷重支持部４１の上下に配置することも可能である。 The flange 83 is arranged in a recess 412 provided above and below the load support section 41 . The upper and lower flanges 83 are provided to receive long-term loads from the wooden beam 4 and shear forces during earthquakes, and the shear forces received by these flanges 83 are transferred to the perforated steel plate dowel 84 via the joint plate 82. communicated. By providing the recess 412, the upper and lower flanges 83 can be accommodated in the same plane as the upper and lower surfaces of the load support part 41, but the recess 412 is omitted and the upper and lower flanges 83 are arranged above and below the load support part 41. It is also possible.

孔開き鋼板ジベル８４は、上記のせん断力を接合部３に伝達するものである。孔開き鋼板ジベル８４は、端板８１から接合部３の水平方向の途中まで突出する板材であり、端板８１の幅方向の中央部分で板面を鉛直方向として配置される。 The perforated steel plate dowel 84 transmits the above-mentioned shearing force to the joint portion 3. The perforated steel plate dowel 84 is a plate material that protrudes from the end plate 81 to the middle of the joint portion 3 in the horizontal direction, and is arranged at the center portion of the end plate 81 in the width direction with the plate surface in the vertical direction.

孔開き鋼板ジベル８４は接合部３に埋設され、孔開き鋼板ジベル８４の孔８４１（図１（ａ）参照）には接合部３のコンクリートが充填される。孔開き鋼板ジベル８４は、当該コンクリートのせん断抵抗によりせん断力を伝達するせん断抵抗部材として機能する。孔開き鋼板ジベル８４は、端板８１の高さ方向の中間部のみに配置されており、端板８１の全高さに亘って配置する場合と比べて鋼材量が低減される。 The perforated steel plate dowel 84 is buried in the joint part 3, and the hole 841 (see FIG. 1(a)) of the perforated steel plate dowel 84 is filled with concrete of the joint part 3. The perforated steel plate dowel 84 functions as a shear resistance member that transmits shear force due to the shear resistance of the concrete. The perforated steel plate dowel 84 is disposed only at the middle portion of the end plate 81 in the height direction, and the amount of steel material is reduced compared to the case where the perforated steel plate dowel 84 is disposed over the entire height of the end plate 81.

水平鉄筋１０は、一方の端部が木質梁４の荷重支持部４１の接合部３側の端部にGIR接合され、他方の端部が接合金物８の端板８１の孔８１１を貫通して接合部３のコンクリート内に突出する。接合部３の左右の木質梁４から突出する水平鉄筋１０の先端同士は、図１（ａ）に示すように、接合部３内で継手部１１により接続される。継手部１１としては機械継手を用いることができるが、これに限ることはない。 One end of the horizontal reinforcing bar 10 is GIR-jointed to the end of the load-bearing part 41 of the wooden beam 4 on the joint part 3 side, and the other end passes through the hole 811 of the end plate 81 of the joining hardware 8. Projects into the concrete at joint 3. The ends of the horizontal reinforcing bars 10 protruding from the left and right wooden beams 4 of the joint 3 are connected by a joint 11 within the joint 3, as shown in FIG. 1(a). Although a mechanical joint can be used as the joint portion 11, it is not limited to this.

（２．接合構造１の構築方法）
接合構造１を構築するには、下側の木質柱２を現場で構築した後、図３（ａ）の矢印に示すように、接合金物８や水平鉄筋１０を事前に取り付けた左右の木質梁４を上方から落とし込み、図３（ｂ）に示すように下側の木質柱２の上に設置する。鉛直鉄筋６と円形鋼管９は、予め下側の木質柱２の荷重支持部４１の上端部に固定されている。木質梁４への接合金物８と水平鉄筋１０の取り付けは現場で行われるが、工場等で予め行われても良い。 (2. Construction method of joining structure 1)
To construct the joint structure 1, after constructing the lower wooden pillar 2 on site, as shown by the arrow in FIG. 4 is dropped from above and installed on the lower wooden pillar 2 as shown in FIG. 3(b). The vertical reinforcing bars 6 and the circular steel pipe 9 are fixed in advance to the upper end portion of the load support portion 41 of the lower wooden column 2. The joining hardware 8 and the horizontal reinforcing bars 10 are attached to the wooden beam 4 on-site, but may be done in advance at a factory or the like.

木質梁４の設置時には、下側の難燃層４２の接合部３側の端部を木質柱２の難燃層２２の上に載置する。これにより、重力によって木質梁４の下側の難燃層４２が荷重支持部４１から剥離するのが防止される。また木質柱２の難燃層２２の上面は荷重支持部２１の上面より低い位置にあり、木質梁４の設置時には、荷重支持部２１の上面と木質梁４の下側の難燃層４２の上面とが同じ高さとなる。 When installing the wooden beam 4, the end of the lower flame-retardant layer 42 on the joint portion 3 side is placed on the flame-retardant layer 22 of the wooden column 2. This prevents the flame retardant layer 42 on the lower side of the wooden beam 4 from peeling off from the load support part 41 due to gravity. In addition, the upper surface of the flame retardant layer 22 of the wooden column 2 is located at a lower position than the upper surface of the load support part 21. The top surface will be at the same height.

この後、図３（ｂ）に示すように左右の木質梁４の水平鉄筋１０の先端同士を継手部１１により接続し、フープ筋７等の配置を行った上で、図３（ｃ）に示すように接合部３とスラブ５のコンクリートを打設する。スラブ５の上面には円形鋼管９が埋設される。また接合金物８の端板８１は接合部３のコンクリートを打設する際の型枠として機能し、接合部３のコンクリートの打設時は、残りの必要な型枠を配置するだけでよい。 After this, as shown in FIG. 3(b), the tips of the horizontal reinforcing bars 10 of the left and right wooden beams 4 are connected with the joint part 11, and the hoop reinforcements 7, etc. are arranged, and then as shown in FIG. 3(c). Concrete is poured for the joint 3 and slab 5 as shown. A circular steel pipe 9 is buried in the upper surface of the slab 5. Further, the end plate 81 of the joint hardware 8 functions as a formwork when pouring concrete for the joint portion 3, and when pouring concrete for the joint portion 3, it is only necessary to arrange the remaining necessary formwork.

この後、図３（ｃ）の矢印に示すように、上側の木質柱２をスラブ５の上方から落とし込み、スラブ５から突出する水平鉄筋１０の上端部と円形鋼管９を、木質柱２の荷重支持部２１に形成した孔２１１や切り込み２１２に挿入する。孔２１１には接着材を充填し、これにより図１（ａ）等に示す接合構造１が形成される。 Thereafter, as shown by the arrow in FIG. It is inserted into the hole 211 or cut 212 formed in the support part 21. The hole 211 is filled with an adhesive, thereby forming the bonding structure 1 shown in FIG. 1(a) and the like.

このように、本実施形態では、木質柱２と木質梁４をコンクリート製の接合部３を介して接合する際に、木質梁４の接合部３側の端部に接合金物８を設け、当該接合金物８から突出する孔開き鋼板ジベル８４を接合部３のコンクリート内に埋設させる。また接合部３の両側の木質梁４から突出する水平鉄筋１０を、接合部３内で継手部１１により接続する。上記の接合金物８により木質梁４と接合部３の間でせん断力を伝達することで、接合部３内に多数の通しボルトや水平鉄筋１０を配置する必要が無く、接合部３内の構成を簡素化でき、施工が容易になる。また本実施形態では、木質梁４から突出する水平鉄筋１０を継手部１１により接続するので、一方の木質梁４を梁軸方向に移動させて当該木質梁４から突出する水平鉄筋１０を他方の木質梁４の孔に挿入するなどの必要が無く、木質梁４を単に上から落とし込むことで設置でき、施工が容易になる。 As described above, in this embodiment, when joining the wooden column 2 and the wooden beam 4 via the concrete joint 3, the joining hardware 8 is provided at the end of the wooden beam 4 on the joint 3 side. A perforated steel plate dowel 84 protruding from the joint hardware 8 is buried in the concrete of the joint portion 3. Further, horizontal reinforcing bars 10 protruding from the wooden beams 4 on both sides of the joint 3 are connected by joints 11 within the joint 3. By transmitting shear force between the wooden beam 4 and the joint 3 using the joint hardware 8 described above, there is no need to arrange many through bolts or horizontal reinforcing bars 10 within the joint 3, and the structure within the joint 3 can be improved. This simplifies construction and makes construction easier. Further, in this embodiment, since the horizontal reinforcing bars 10 protruding from the wooden beam 4 are connected by the joint part 11, one wooden beam 4 is moved in the beam axis direction and the horizontal reinforcing bars 10 protruding from the wooden beam 4 are connected to the other wooden beam 4. There is no need to insert the wooden beam 4 into a hole, and the wooden beam 4 can be installed by simply dropping it from above, making construction easier.

また本実施形態では、孔開き鋼板ジベル８４の孔８４１に充填された接合部３のコンクリートのせん断抵抗によりせん断力を確実に伝達でき、その構成も高耐力・高剛性になる。さらに、本実施形態では接合部３の下方の木質柱２に設けた円形鋼管９により当該木質柱２と接合部３の間でせん断力を伝達することで、接合部３内に多数の鉛直鉄筋６等を配置する必要が無く、接合部３内の構成を簡素化でき、施工が容易になる。 Further, in this embodiment, shear force can be reliably transmitted due to the shear resistance of the concrete of the joint portion 3 filled in the hole 841 of the perforated steel plate dowel 84, and the structure also has high yield strength and high rigidity. Furthermore, in this embodiment, by transmitting shear force between the wooden column 2 and the joint 3 using the circular steel pipe 9 provided on the wooden column 2 below the joint 3, a large number of vertical reinforcing bars are installed in the joint 3. 6 etc., the configuration inside the joint part 3 can be simplified, and construction can be facilitated.

上記の鉛直鉄筋６に関しても、本実施形態では上下の木質柱２の間に一体の鉛直鉄筋６を連続するように配置することで、接合部３内で鉛直鉄筋６同士を機械継手等で接続する必要が無く、施工が容易になる。ただし、上下の木質柱２から突出する鉛直鉄筋の先端同士を、接合部３内で機械継手等の継手部により接続することは可能である。 Regarding the above-mentioned vertical reinforcing bars 6, in this embodiment, the vertical reinforcing bars 6 are continuously arranged between the upper and lower wooden columns 2, and the vertical reinforcing bars 6 are connected to each other within the joint 3 using a mechanical joint or the like. There is no need to do this, making construction easier. However, it is possible to connect the tips of the vertical reinforcing bars protruding from the upper and lower wooden columns 2 to each other within the joint 3 using a joint such as a mechanical joint.

円形鋼管９はスラブ５の上面にも設けられ、その上部がスラブ５の上方の木質柱２に埋設されることで、当該木質柱２とスラブ５の間でせん断力を伝達でき、鉛直鉄筋６等の本数を減らすことができる。 The circular steel pipe 9 is also provided on the upper surface of the slab 5, and its upper part is buried in the wooden column 2 above the slab 5, so that shear force can be transmitted between the wooden column 2 and the slab 5, and the vertical reinforcing bar 9 etc. can be reduced.

また前記の接合金物８は、接合板８２によって木質梁４に確実に接合することができ、また上下のフランジ８３により、木質梁４に加わる長期荷重と地震時のせん断力の双方を支持できる。 Further, the joining hardware 8 can be reliably joined to the wooden beam 4 by the joining plate 82, and can support both the long-term load applied to the wooden beam 4 and the shear force during an earthquake by the upper and lower flanges 83.

しかしながら、本発明が上記の実施形態に限られることはない。例えば本実施形態では、木質柱２と木質梁４を接合構造１により接合しているが、木質柱２に代えて鉄筋コンクリート造の柱を用いることも可能であり、コンクリートと木質材による合成構造の柱としてもよい。 However, the present invention is not limited to the above embodiments. For example, in this embodiment, the wooden column 2 and the wooden beam 4 are connected by the joint structure 1, but it is also possible to use a reinforced concrete column instead of the wooden column 2, and a composite structure of concrete and wooden materials can be used. It can also be used as a pillar.

また本実施形態の接合構造１は、単一構面のラーメン構造に適用されるが、図１（ａ）に示す構面と、当該構面と平面において直交する構面の二方向のラーメン構造の接合箇所に適用されてもよい。この場合、木質梁４は接合部３の左右だけでなく、接合部３の前後（図１（ｃ）の上下に対応する）にも設けられる。 Furthermore, the joint structure 1 of the present embodiment is applied to a rigid frame structure with a single plane, but a rigid frame structure in two directions, that is, a frame shown in FIG. may be applied to joints of In this case, the wooden beams 4 are provided not only on the left and right sides of the joint 3 but also on the front and rear of the joint 3 (corresponding to the top and bottom in FIG. 1(c)).

また木質柱２や木質梁４の構成も前記に限定されることはなく、例えば難燃層２２、４２の外側に化粧材を設けても良いし、難燃層２２、４２として石膏ボード等の難燃材料を用いてもよい。また木質柱２や木質梁４の断面は矩形状であるが、その形状も特に限定されない。 Furthermore, the configurations of the wooden pillars 2 and wooden beams 4 are not limited to the above. For example, a decorative material may be provided on the outside of the flame-retardant layers 22, 42, or a gypsum board or the like can be used as the flame-retardant layers 22, 42. Flame retardant materials may also be used. Further, although the cross sections of the wooden pillars 2 and the wooden beams 4 are rectangular, the shapes are not particularly limited.

また本実施形態では接合金物８のせん断抵抗部材として孔開き鋼板ジベル８４を用いているが、孔開き鋼板ジベル８４の代わりに頭付きスタッドや鉄筋等の棒状の突出部材を用いることもできる。同様に、本実施形態では木質柱２のせん断抵抗部材として円形鋼管９を用いているが、円形鋼管９の代わりに頭付きスタッドや鉄筋等の棒状の突出部材を用いることも可能である。 Further, in this embodiment, a perforated steel plate dowel 84 is used as the shear resistance member of the joining hardware 8, but a bar-shaped protruding member such as a headed stud or a reinforcing bar may be used instead of the perforated steel plate dowel 84. Similarly, although the circular steel pipe 9 is used as the shear resistance member of the wooden column 2 in this embodiment, it is also possible to use a bar-shaped protruding member such as a headed stud or a reinforcing bar instead of the circular steel pipe 9.

また本実施形態ではドリフトピン８５を用いて接合金物８を木質梁４の荷重支持部４１に固定するが、これに限ることはなく、ドリフトピン８５が無くても構造的には成立する。 Further, in this embodiment, the joint hardware 8 is fixed to the load support portion 41 of the wooden beam 4 using the drift pin 85, but the present invention is not limited to this, and the structure can be achieved even without the drift pin 85.

接合金物８のその他の形状、構成等も特に限定されない。以下、別の接合金物を用いる例を、第２～第４の実施形態として説明する。これらの実施形態は、それまでに説明した実施形態と異なる構成について主に説明し、同様の構成については図等で同じ符号を付すなどして説明を省略する。また第１の実施形態も含め、各実施形態で説明する構成は必要に応じて組み合わせることができる。 Other shapes, configurations, etc. of the joining hardware 8 are not particularly limited either. Examples using different joining hardware will be described below as second to fourth embodiments. In these embodiments, configurations that are different from the embodiments described up to that point will be mainly described, and similar configurations will be designated by the same reference numerals in the figures and the like, and a description thereof will be omitted. Furthermore, the configurations described in each embodiment, including the first embodiment, can be combined as necessary.

［第２の実施形態］
図４（ａ）～（ｃ）は、本発明の第２の実施形態の接合構造１ａに関し、図１（ａ）～（ｃ）と同様の断面を示したものである。接合構造１ａは、接合金物８ａの形状において第１の実施形態の接合構造１と主に異なる。 [Second embodiment]
4(a) to 4(c) show cross sections similar to FIGS. 1(a) to 1(c) regarding a joining structure 1a according to a second embodiment of the present invention. The joining structure 1a differs from the joining structure 1 of the first embodiment mainly in the shape of the joining hardware 8a.

図５は接合金物８ａを示す図である。接合金物８ａは、前記の接合金物８と同様の端板８１、接合板８２、フランジ８３、孔開き鋼板ジベル８４を有するが、孔開き鋼板ジベル８４は、端板８１の幅方向の両側において、端板８１の全高さに亘って設けられる。 FIG. 5 is a diagram showing the joining metal fitting 8a. The joining hardware 8a has an end plate 81, a joining plate 82, a flange 83, and a perforated steel plate dowel 84 similar to those of the above-mentioned joining hardware 8, but the perforated steel dowel 84 has two parts on both sides of the end plate 81 in the width direction. It is provided over the entire height of the end plate 81.

接合金物８ａの木質梁４への取り付け時も、木質梁４の荷重支持部４１から突出する水平鉄筋１０を端板８１の孔８１１に貫通させるが、荷重支持部４１の接合部３側の端部と接合板８２に前記した孔が設けられず、木質梁４の断面欠損が回避された構成となっている。 When attaching the joint hardware 8a to the wooden beam 4, the horizontal reinforcing bar 10 protruding from the load support part 41 of the wooden beam 4 is passed through the hole 811 of the end plate 81, but the end of the load support part 41 on the joint part 3 side The above-mentioned holes are not provided in the joint plate 82 and the joint plate 82, and the cross-sectional loss of the wooden beam 4 is avoided.

また本実施形態では、図４（ａ）、（ｃ）に示すように、前記した円形鋼管９の代わりに、鋼板を平面十字状に組み合わせた十字プレート９ａが用いられる。十字プレート９ａの下部は、下側の木質柱２の荷重支持部２１やスラブ５の上面に埋設され、その上部が木質柱２やスラブ５から凸状に突出し、この凸部（せん断抵抗部材）が接合部３のコンクリートや上側の木質柱２の荷重支持部２１に埋設される。なお図４（ｃ）の符号１３は接合部３の外面に設けられる化粧材である。 Moreover, in this embodiment, as shown in FIGS. 4(a) and 4(c), instead of the circular steel pipe 9 described above, a cross plate 9a made by combining steel plates in a planar cross shape is used. The lower part of the cross plate 9a is buried in the load support part 21 of the lower wooden column 2 and the upper surface of the slab 5, and its upper part protrudes convexly from the wooden column 2 and slab 5, and this convex part (shear resistance member) is buried in the concrete of the joint part 3 or the load-bearing part 21 of the upper wooden column 2. Note that reference numeral 13 in FIG. 4(c) is a decorative material provided on the outer surface of the joint portion 3.

［第３の実施形態］
図６（ａ）～（ｃ）は、本発明の第３の実施形態の接合構造１ｂに関し、図１（ａ）～（ｃ）と同様の断面を示したものである。接合構造１ｂでは、接合金物８ｂの孔開き鋼板ジベル８４の突出長が大きくなっており、その孔８４１にフープ筋７ａを通して配置することで孔８４１内のコンクリートのせん断抵抗力を高め、せん断力の伝達性能を向上させた点で第１の実施形態の接合構造１と主に異なる。 [Third embodiment]
6(a) to 6(c) show cross sections similar to FIGS. 1(a) to 1(c) regarding a joining structure 1b according to a third embodiment of the present invention. In the joint structure 1b, the projecting length of the perforated steel plate dowel 84 of the joint hardware 8b is increased, and by passing the hoop reinforcement 7a through the hole 841, the shear resistance of the concrete in the hole 841 is increased, and the shear force is reduced. The main difference from the joining structure 1 of the first embodiment is that the transmission performance is improved.

図６（ｃ）に示すように、フープ筋７ａは、平面コの字状の一対の鉄筋７１の両端部同士を組み合わせて環状としたものであり、各鉄筋７１の両端部を孔開き鋼板ジベル８４の孔８４１に通し、両鉄筋７１の端部同士を溶接等により固定することで、接合構造１ｂの施工時にフープ筋７ａを容易に配置することができる。 As shown in FIG. 6(c), the hoop reinforcement 7a is formed by combining the ends of a pair of reinforcing bars 71 that are U-shaped in plan to form an annular shape. By passing through the holes 841 of 84 and fixing the ends of both reinforcing bars 71 to each other by welding or the like, the hoop reinforcing bars 7a can be easily arranged when constructing the joint structure 1b.

また本実施形態では、接合部３の下方の木質柱２の荷重支持部２１の断面中央部が上方に凸となっており、この凸部９ｂ（せん断抵抗部材）が接合部３のコンクリートに埋設されることで、当該木質柱２と接合部３との間でせん断力を伝達することが可能である。 In addition, in this embodiment, the central part of the cross section of the load-bearing part 21 of the wooden column 2 below the joint 3 is convex upward, and this convex part 9b (shear resistance member) is buried in the concrete of the joint 3. By doing so, it is possible to transmit shear force between the wooden column 2 and the joint portion 3.

上側の木質柱２については、荷重支持部２１が接合部３の上面に当接し、その両側がスラブ５に挟まれた状態となっている。これにより、上側の木質柱２とスラブ５の間でせん断力を伝達することができる。当該木質柱２の難燃層２２は、スラブ５の上に載置される。 Regarding the upper wooden column 2, the load support part 21 is in contact with the upper surface of the joint part 3, and both sides thereof are sandwiched between the slabs 5. Thereby, shear force can be transmitted between the upper wooden column 2 and the slab 5. The flame retardant layer 22 of the wooden column 2 is placed on the slab 5.

接合構造１ｂを構築するには、下側の木質柱２を構築した後、図７（ａ）の矢印に示すように、接合金物８ｂや水平鉄筋１０を事前に取り付けた左右の木質梁４を上方から落とし込み、図７（ｂ）に示すように下側の木質柱２の上に載置する。この後、左右の木質梁４の水平鉄筋１０の先端同士を継手部１１により接続し、フープ筋７ａの配置を行い、図７（ｃ）に示すように接合部３のコンクリートを打設する。 To construct the joint structure 1b, after constructing the lower wooden pillar 2, as shown by the arrow in FIG. It is dropped from above and placed on the lower wooden pillar 2 as shown in FIG. 7(b). Thereafter, the ends of the horizontal reinforcing bars 10 of the left and right wooden beams 4 are connected to each other by the joint part 11, the hoop reinforcements 7a are arranged, and the joint part 3 is concreted as shown in FIG. 7(c).

次に、図７（ｃ）の矢印に示すように、上側の木質柱２をスラブ５の上方から落とし込み、スラブ５から突出する水平鉄筋１０の上端部を木質柱２の荷重支持部２１に形成した孔２１１に挿入し、当該孔に接着材を充填する。こうして図７（ｄ）に示すように木質柱２の建方を行った後、スラブ５のコンクリートを打設することにより、図６（ａ）等に示す接合構造１ｂが形成される。 Next, as shown by the arrow in FIG. 7(c), the upper wooden column 2 is dropped from above the slab 5, and the upper end of the horizontal reinforcing bar 10 protruding from the slab 5 is formed into the load support part 21 of the wooden column 2. The adhesive is inserted into the hole 211 that has been formed, and the hole is filled with an adhesive. After the wooden pillars 2 are erected as shown in FIG. 7(d), the concrete of the slab 5 is poured, thereby forming the joint structure 1b shown in FIG. 6(a) etc.

［第４の実施形態］
図８（ａ）～（ｃ）は、本発明の第４の実施形態の接合構造１ｃに関し、図１（ａ）～（ｃ）と同様の断面を示したものである。接合構造１ｃは、接合金物８ｃの形状において第１の実施形態の接合構造１と主に異なる。 [Fourth embodiment]
8(a) to 8(c) show cross sections similar to FIGS. 1(a) to 1(c) regarding a joining structure 1c according to the fourth embodiment of the present invention. The joining structure 1c differs from the joining structure 1 of the first embodiment mainly in the shape of the joining hardware 8c.

図９は接合金物８ｃを示す図である。接合金物８ｃは、前記の接合金物８と同様の端板８１、接合板８２、フランジ８３、孔開き鋼板ジベル８４を有するが、フランジ８３は端板８１の下端部のみに設けられ、木質梁４の長期荷重を支持する。 FIG. 9 is a diagram showing the joining metal fitting 8c. The joining hardware 8c has an end plate 81, a joining plate 82, a flange 83, and a perforated steel dowel 84 similar to the joining hardware 8, but the flange 83 is provided only at the lower end of the end plate 81, and the wooden beam 4 Supports long-term loads.

また接合板８２と孔開き鋼板ジベル８４は、端板８１の幅方向の両側で、木質梁４の荷重支持部４１の幅方向の両端部に当たる位置に設けられており（図８（ｃ）等も参照）、接合板８２は、端板８１とフランジ８３とを接続するように略直角三角形状の形状を有する。また図８（ａ）に示すように、孔開き鋼板ジベル８４は、端板８１の高さ方向の中央部分よりもやや下に設けられており、孔開き鋼板ジベル８４の上端と、接合板８２の上端とは同程度の高さに位置する。なお本実施形態では、接合部３の平面の寸法が木質柱２の断面の寸法に対応する。 Furthermore, the joint plate 82 and the perforated steel plate dowels 84 are provided on both sides of the end plate 81 in the width direction, at positions corresponding to both ends of the load support part 41 of the wooden beam 4 in the width direction (see FIG. 8(c), etc.). (see also), the joining plate 82 has a substantially right triangular shape so as to connect the end plate 81 and the flange 83. Further, as shown in FIG. 8(a), the perforated steel plate dowel 84 is provided slightly below the center portion of the end plate 81 in the height direction, and the upper end of the perforated steel plate dowel 84 and the joint plate 82 It is located at the same height as the top of the . Note that in this embodiment, the plane dimension of the joint 3 corresponds to the cross-sectional dimension of the wooden column 2.

また本実施形態では、図８（ａ）に示すように、接合部３の下方の木質柱２の荷重支持部２１が、難燃層２２よりも上方に突出しており、この凸部（せん断抵抗部材）によって当該木質柱２と接合部３の間でせん断力を伝達することが可能である。また荷重支持部２１の上端部には鉄筋９ｃの下部が埋設されており、鉄筋９ｃの上部は接合部３のコンクリートに埋設される。この鉄筋９ｃは、下側の木質柱２が地震時に水平方向へずれようとする動きに対するフェールセーフとして機能する。鉄筋９ｃは、矩形の四隅に対応する位置で計４本設けられる。 Furthermore, in this embodiment, as shown in FIG. 8(a), the load supporting portion 21 of the wooden column 2 below the joint portion 3 protrudes upwardly than the flame retardant layer 22, and this convex portion (shear resistance It is possible to transmit shear force between the wooden column 2 and the joint 3 by means of the wooden column 2 and the joint 3. Further, the lower part of the reinforcing bar 9c is buried in the upper end of the load supporting part 21, and the upper part of the reinforcing bar 9c is buried in the concrete of the joint part 3. This reinforcing bar 9c functions as a fail-safe against the movement of the lower wooden column 2 in the horizontal direction during an earthquake. A total of four reinforcing bars 9c are provided at positions corresponding to the four corners of the rectangle.

また木質梁４の下側の難燃層４２は、前記と同様、下側の木質柱２の難燃層２２の上に載置されている。また本実施形態では、上側の木質柱２について、荷重支持部２１がスラブ５のコンクリートに挟まれる形で接合部３の上面に当接する。 Further, the flame retardant layer 42 on the lower side of the wooden beam 4 is placed on the flame retardant layer 22 of the lower wooden column 2, as described above. Further, in this embodiment, the load support portion 21 of the upper wooden column 2 contacts the upper surface of the joint portion 3 in a manner that it is sandwiched between the concrete of the slab 5.

以上、添付図面を参照しながら、本発明に係る好適な実施形態について説明したが、本発明はかかる例に限定されない。当業者であれば、本願で開示した技術的思想の範疇内において、各種の変更例又は修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes or modifications within the scope of the technical idea disclosed in this application, and these naturally fall within the technical scope of the present invention. Understood.

１、１ａ、１ｂ、１ｃ：接合構造
２：木質柱
３：接合部
４：木質梁
５：スラブ
６：鉛直鉄筋
７、７ａ：フープ筋
８、８ａ、８ｂ、８ｃ：接合金物
９：円形鋼管
９ａ：十字プレート
９ｂ：凸部
９ｃ：鉄筋
１０：水平鉄筋
１１：継手部
８１：端板
８２：接合板
８３：フランジ
８４：孔開き鋼板ジベル 1, 1a, 1b, 1c: Joint structure 2: Wooden column 3: Joint part 4: Wooden beam 5: Slab 6: Vertical reinforcement 7, 7a: Hoop reinforcement 8, 8a, 8b, 8c: Joint hardware 9: Circular steel pipe 9a : Cross plate 9b: Convex part 9c: Reinforcing bar 10: Horizontal reinforcing bar 11: Joint part 81: End plate 82: Joint plate 83: Flange 84: Perforated steel plate dowel

Claims (6)

柱と木質梁をコンクリート製の接合部により接合する接合構造であって、
前記木質梁の前記接合部側の端部に、接合金物が設けられ、
前記接合金物から前記接合部の水平方向の途中まで突出するせん断抵抗部材が、前記接合部に埋設され、
前記接合部の両側の前記木質梁から突出する水平鉄筋が、前記接合部内で継手部により接続され、
前記接合金物は、
前記木質梁の端面に設けられる端板と、
前記木質梁の前記接合部側の端部に埋設される接合板と、
を有し、
前記水平鉄筋は前記端板を貫通し、
前記接合板が前記端板に対して直交するように、前記接合板の端部が前記端板に固定されることを特徴とする接合構造。 A joint structure in which columns and wooden beams are joined using concrete joints,
A joining hardware is provided at the end of the wooden beam on the joint side,
A shear resistance member that protrudes from the joining hardware part way in the horizontal direction of the joining part is embedded in the joining part,
Horizontal reinforcing bars protruding from the wooden beam on both sides of the joint are connected by a joint within the joint ,
The joining hardware is
an end plate provided on the end surface of the wooden beam;
a joint plate embedded in the end of the wooden beam on the joint side;
has
the horizontal reinforcement passes through the end plate;
A joining structure characterized in that an end portion of the joining plate is fixed to the end plate so that the joining plate is perpendicular to the end plate . 前記接合板と前記せん断抵抗部材の高さ方向の設置範囲または梁幅方向の位置が異なることを特徴とする請求項１記載の接合構造。2. The joint structure according to claim 1, wherein the installation range in the height direction or the position in the beam width direction of the joint plate and the shear resistance member are different. 柱と木質梁をコンクリート製の接合部により接合する接合構造であって、
前記木質梁の前記接合部側の端部に、接合金物が設けられ、
前記接合金物から前記接合部の水平方向の途中まで突出するせん断抵抗部材が、前記接合部に埋設され、
前記接合部の両側の前記木質梁から突出する水平鉄筋が、前記接合部内で継手部により接続され、
前記接合金物は、
前記木質梁の端面に設けられる端板と、
前記木質梁の前記接合部側の端部に埋設される接合板と、
前記端板の下端部に接合され、前記木質梁の荷重支持部の前記接合部側の端部の下面に配置されるフランジと、
を有し、
前記水平鉄筋は前記端板を貫通し、
前記フランジの下面が、前記木質梁の下面の難燃層で覆われることを特徴とする接合構造。 A joint structure in which columns and wooden beams are joined using concrete joints,
A joining hardware is provided at the end of the wooden beam on the joint side,
A shear resistance member that protrudes from the joining hardware part way in the horizontal direction of the joining part is embedded in the joining part,
Horizontal reinforcing bars protruding from the wooden beam on both sides of the joint are connected by a joint within the joint ,
The joining hardware is
an end plate provided on the end surface of the wooden beam;
a joint plate embedded in the end of the wooden beam on the joint side;
a flange joined to the lower end of the end plate and disposed on the lower surface of the end of the load-bearing part of the wooden beam on the joint side;
has
the horizontal reinforcement passes through the end plate;
A joint structure characterized in that the lower surface of the flange is covered with a flame retardant layer on the lower surface of the wooden beam . 前記フランジの幅が、前記木質梁の幅よりも前記木質梁の両側面の難燃層の厚み分小さいことを特徴とする請求項３記載の接合構造。4. The joint structure according to claim 3, wherein the width of the flange is smaller than the width of the wooden beam by the thickness of flame retardant layers on both sides of the wooden beam. 前記フランジが、前記木質梁の荷重支持部の下面に設けられた窪みに配置されることを特徴とする請求項３記載の接合構造。4. The joint structure according to claim 3, wherein the flange is disposed in a recess provided on the lower surface of the load-bearing portion of the wooden beam. 前記接合金物は、前記端板の上下の端部に接合され、前記木質梁の荷重支持部の前記接合部側の端部の上面と下面に配置されるフランジを有し、上下の前記フランジで前記荷重支持部が挟み込まれることを特徴とする請求項１または請求項３に記載の接合構造。 The joining hardware is joined to the upper and lower ends of the end plate, and has flanges disposed on the upper and lower surfaces of the end on the joint side of the load-bearing part of the wooden beam , and the upper and lower flanges The joining structure according to claim 1 or 3, wherein the load supporting portion is sandwiched .
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JP7526339B1 (en) 2023-11-27 2024-07-31 鹿島建設株式会社 Joint structure and method for constructing the joint structure

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JP2013113000A (en) 2011-11-29 2013-06-10 Okabe Co Ltd Structure for joining wooden members together
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JP2015145556A (en) 2014-01-31 2015-08-13 株式会社ダイナミックデザイン Mixed construction skeleton of reinforcement concrete column and steel beam
JP6807473B1 (en) 2020-02-14 2021-01-06 鹿島建設株式会社 Construction method of joint structure and joint structure
JP2022160200A (en) 2021-04-06 2022-10-19 鹿島建設株式会社 Connection structure

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JP2013113000A (en) 2011-11-29 2013-06-10 Okabe Co Ltd Structure for joining wooden members together
JP2014114671A (en) 2012-12-12 2014-06-26 Takenaka Komuten Co Ltd Column member joining structure
JP2015145556A (en) 2014-01-31 2015-08-13 株式会社ダイナミックデザイン Mixed construction skeleton of reinforcement concrete column and steel beam
JP6807473B1 (en) 2020-02-14 2021-01-06 鹿島建設株式会社 Construction method of joint structure and joint structure
JP2022160200A (en) 2021-04-06 2022-10-19 鹿島建設株式会社 Connection structure

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Publication number Priority date Publication date Assignee Title
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