JP7503510B2 - Joint structure and method for constructing the joint structure - Google Patents

Joint structure and method for constructing the joint structure Download PDF

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JP7503510B2
JP7503510B2 JP2021019055A JP2021019055A JP7503510B2 JP 7503510 B2 JP7503510 B2 JP 7503510B2 JP 2021019055 A JP2021019055 A JP 2021019055A JP 2021019055 A JP2021019055 A JP 2021019055A JP 7503510 B2 JP7503510 B2 JP 7503510B2
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column
diaphragm
main body
steel beam
joint member
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JP2022122012A (en
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大樹 日向
淳 久保田
敏秀 坂
裕樹 田中
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Kajima Corp
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Description

本発明は、木質柱と鉄骨梁の接合構造およびその構築方法に関する。 The present invention relates to a joint structure between a wooden column and a steel beam and a method for constructing the same.

近年、環境負荷低減や建物利用者のウェルネスの観点から、建物への木質材料の利用が推奨されトレンドとなりつつある。集成材等の木質材料は軽量で強度が高いという特徴があり、建物の重量低減にもつながるが、靭性能が低く割裂などの脆性的な破壊を起こしやすい。 In recent years, the use of wood materials in buildings has been recommended and is becoming a trend from the perspective of reducing the environmental impact and the wellness of building users. Wood materials such as laminated timber are characterized by their light weight and high strength, which helps reduce the weight of buildings, but they have low toughness and are prone to brittle fracture such as splitting.

そのため、フレーム架構に木質材料を採用する場合には、柱を木質材料とし梁を鉄骨造として、鉄骨梁が先行降伏するように設計することで、変形性能や地震エネルギー吸収能力を確保することが考えられる。 Therefore, when using wood materials for a frame structure, it is possible to ensure deformation performance and seismic energy absorption capacity by using wood for the columns and steel for the beams, and designing them so that the steel beams yield first.

例えば特許文献1には、木質柱と鉄骨梁との接合部にネジ部と異形鉄筋部とからなる鋼棒を用い、鋼棒のネジ部を上側柱部材および下側柱部材に付着固定し、鋼棒の異形鉄筋部を木材より硬質の材料からなる仕口部材内で鉄筋継手に接合することが記載されている。 For example, Patent Document 1 describes a method of using a steel bar consisting of a threaded portion and a deformed reinforcing bar portion at the joint between a wooden column and a steel beam, attaching and fixing the threaded portion of the steel bar to the upper column member and the lower column member, and joining the deformed reinforcing bar portion of the steel bar to a reinforcing bar joint within a joint member made of a material harder than wood.

特許第6638906号Patent No. 6638906

しかしながら、特許文献1記載の接合構造は、異形鉄筋部とネジ部を有する鋼棒やスリーブ系の鉄筋継手等を用いた複雑な構成であり、作業工程が複雑で施工費用が嵩み、生産性が低いという問題点があった。 However, the joint structure described in Patent Document 1 has a complex configuration that uses steel bars with deformed reinforcing bars and threaded sections, sleeve-type reinforcing bar joints, etc., and has problems such as complex work processes, high construction costs, and low productivity.

本発明は、前述した問題点に鑑みてなされたものであり、その目的は、木質柱と鉄骨梁とを容易に接合できる接合構造等を提供することである。 The present invention was made in consideration of the above-mentioned problems, and its purpose is to provide a joint structure that can easily join wooden columns and steel beams.

前述した目的を達成するための第1の発明は、木質材料を用いた柱と鉄骨梁との接合構造であって、本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、前記本体の側面には、前記本体の上下に設けられたダイアフラム同士を連結するように接合板が設けられており、前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが、前記本体の前記接合板にボルトを用いて接合されたことを特徴とする接合構造である。 The first invention for achieving the above-mentioned object is a joint structure between a column made of wood material and a steel beam, comprising a joint member having a main body and diaphragms provided above and below the main body , a joint plate is provided on the side of the main body to connect the diaphragms provided above and below the main body, the column and the joint member are joined using a rod protruding from the end face of the column and inserted into a hole provided in the diaphragm, the flange of the steel beam is joined to the diaphragm, and the web of the steel beam is joined to the joint plate of the main body using a bolt.

第2の発明は、木質材料を用いた柱と鉄骨梁との接合構造であって、本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、かつ、前記ダイアフラムの前記本体と反対側の面に固定された前記ダイアフラムから突出する突起が、前記柱の端面に形成した凹部に挿入され、前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが、前記本体にボルトを用いて接合されたことを特徴とする接合構造である。The second invention is a joint structure between a column made of wood material and a steel beam, comprising a joint member having a main body and diaphragms provided above and below the main body, wherein the column and the joint member are joined using a rod protruding from the end face of the column and inserted into a hole provided in the diaphragm, and a protrusion protruding from the diaphragm fixed to the surface of the diaphragm opposite the main body is inserted into a recess formed in the end face of the column, a flange of the steel beam is joined to the diaphragm, and a web of the steel beam is joined to the main body using a bolt.

第3の発明は、木質材料を用いた柱と鉄骨梁との接合構造であって、本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、前記柱の端面に形成された非貫通孔から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが、前記本体にボルトを用いて接合されたことを特徴とする接合構造である。The third invention is a joint structure between a column made of wood material and a steel beam, comprising a joint member having a main body and diaphragms provided above and below the main body, wherein the column and the joint member are joined using a rod protruding from a non-through hole formed in the end face of the column and inserted into a hole provided in the diaphragm, the flange of the steel beam is joined to the diaphragm, and the web of the steel beam is joined to the main body using a bolt.

第4の発明は、木質材料を用いた柱と鉄骨梁との接合構造であって、本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが、前記本体にボルトを用いて接合され、前記本体は、鋼管の内部にコンクリートが充填されたものであることを特徴とする接合構造である。The fourth invention is a joint structure between a column made of wood material and a steel beam, comprising a joint member having a main body and diaphragms provided above and below the main body, the column and the joint member being joined using a rod protruding from the end face of the column and inserted into a hole provided in the diaphragm, the flange of the steel beam being joined to the diaphragm, and the web of the steel beam being joined to the main body using bolts, and the main body being a steel pipe filled with concrete.

の発明は、第1の発明の接合構造の構築方法であって、下階の前記柱を建て込む工程と、下階の前記柱の上に前記仕口部材を設置し、当該柱と前記仕口部材の本体の下側のダイアフラムを前記棒材を用いて接合する工程と、上階の前記柱と前記仕口部材の本体の上側のダイアフラムを前記棒材を用いて接合して上階の前記柱を建て込む工程と、を具備し、前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが前記本体の前記接合板にボルトを用いて接合されることを特徴とする接合構造の構築方法である。
The fifth invention is a method for constructing a joint structure of the first invention, comprising the steps of erecting the column of the lower floor, installing the joint member on top of the column of the lower floor and joining the column to the lower diaphragm of the main body of the joint member using the rod material, and joining the column of the upper floor to the upper diaphragm of the main body of the joint member using the rod material, thereby erecting the column of the upper floor, wherein the flange of the steel beam is joined to the diaphragm and the web of the steel beam is joined to the joint plate of the main body using bolts.

本発明によれば、木質柱と鉄骨梁とを容易に接合できる接合構造等を提供できる。 The present invention provides a joint structure that can easily join wooden columns and steel beams.

仕口部材1、木質柱2、鉄骨梁3を示す図。A diagram showing a joint member 1, a wooden column 2, and a steel beam 3. 接合構造の構築方法を示す図。1A and 1B are diagrams showing a method of constructing a joint structure. 仕口部材1a、1bを示す図。A diagram showing joint members 1a and 1b. 仕口部材1c、1d、1eを示す図。A diagram showing joint members 1c, 1d, and 1e. 仕口部材1fを示す図。A diagram showing joint member 1f.

以下、図面に基づいて本発明の好適な実施形態について詳細に説明する。 The following describes in detail a preferred embodiment of the present invention with reference to the drawings.

(1.仕口部材1、木質柱2、鉄骨梁3)
図1(a)は、本発明の実施形態に係る接合構造で用いる仕口部材1を示す図である。仕口部材1は、木質柱2と鉄骨梁3の接合に用いる部材である。図1(b)は木質柱2の棒材22付近の鉛直断面を示す図であり、図1(c)は仕口部材1の本体11の高さにおける水平断面を示す図である。
(1. Joint member 1, wooden column 2, steel beam 3)
Fig. 1(a) is a diagram showing a joint member 1 used in a joint structure according to an embodiment of the present invention. The joint member 1 is a member used to join a wooden column 2 and a steel beam 3. Fig. 1(b) is a diagram showing a vertical cross section of the wooden column 2 near a bar 22, and Fig. 1(c) is a diagram showing a horizontal cross section at the height of the main body 11 of the joint member 1.

仕口部材1は、本体11とダイアフラム12等を有する。 The joint member 1 has a main body 11 and a diaphragm 12, etc.

本体11は、矩形状断面の鋼管111の内部にコンクリート112を充填したものである。本体11の各側面には、接合板(シアープレート)113が固定される。各接合板113は、板面を鉛直方向に合わせて本体11の側面の法線方向に突出するように配置される。なお鋼管111の断面は矩形に限らず、円形でもよい。 The main body 11 is made by filling the inside of a steel pipe 111 with a rectangular cross section with concrete 112. A joint plate (shear plate) 113 is fixed to each side of the main body 11. Each joint plate 113 is arranged so that the plate surface is aligned vertically and protrudes in the normal direction of the side of the main body 11. Note that the cross section of the steel pipe 111 is not limited to being rectangular, and may be circular.

ダイアフラム12は、鉄骨梁3のフランジ31と接合される部分であり、本実施形態では本体11の上下に設けられた矩形状の鋼板である。ダイアフラム12の外周部は鋼管111より外側に位置し、当該外周部には木質柱2の接合に用いる複数の孔121が設けられる。なおダイアフラム12の平面形状も矩形に限らず、円形でもよい。 The diaphragm 12 is the part that is joined to the flange 31 of the steel beam 3, and in this embodiment is a rectangular steel plate provided above and below the main body 11. The outer periphery of the diaphragm 12 is located outside the steel pipe 111, and multiple holes 121 are provided on this outer periphery for use in joining the wooden column 2. The planar shape of the diaphragm 12 is not limited to a rectangle, and may be a circle.

上下のダイアフラム12の一方には、コンクリート112の充填に用いる開口122が、鋼管111より内側の位置で形成される。必要に応じて、コンクリート112の充填時の空気抜き孔(不図示)も開口122と併せて形成される。開口122は、ダイアフラム12の中央部に設けられるが、これに限らない。 An opening 122 used for filling the concrete 112 is formed in one of the upper and lower diaphragms 12, at a position inside the steel pipe 111. If necessary, an air vent hole (not shown) for filling the concrete 112 is also formed together with the opening 122. The opening 122 is provided in the center of the diaphragm 12, but is not limited to this.

木質柱2は、集成材等の木質材料を用いた柱体であり、柱軸方向の端面21から棒材22が突出する。棒材22は、木質柱2の端面21に形成された孔23に挿入され、孔23に接着剤等の充填材24を充填することによって木質柱2に固定される。棒材22は例えば鉄筋や全ネジ棒であり、少なくとも端面21からの突出部分の一部または全体がネジ加工されている。 The wooden column 2 is a column body made of a wood material such as laminated lumber, and a bar 22 protrudes from an end face 21 in the column axial direction. The bar 22 is inserted into a hole 23 formed in the end face 21 of the wooden column 2, and is fixed to the wooden column 2 by filling the hole 23 with a filler 24 such as an adhesive. The bar 22 is, for example, a reinforcing bar or a fully threaded rod, and at least a part or the entire part of the protruding portion from the end face 21 is threaded.

鉄骨梁3には、上下のフランジ31とウェブ32とを有するH形鋼が用いられる。鉄骨梁3は、ウェブ32の梁軸方向の端部がフランジ31から張り出すように加工される。ただしこれに限ることはなく、例えば接合板113がダイアフラム12より外側に突出している場合(後述する図4(a)の例など)、ウェブ32の梁軸方向の端部はフランジ31から張り出さなくてもよい。 H-shaped steel beams 3 are used, each having upper and lower flanges 31 and a web 32. The steel beams 3 are processed so that the end of the web 32 in the beam axis direction protrudes from the flange 31. However, this is not limited to this, and for example, if the joint plate 113 protrudes outward from the diaphragm 12 (such as the example of Figure 4 (a) described later), the end of the web 32 in the beam axis direction does not need to protrude from the flange 31.

(2.仕口部材1を用いた接合構造の構築方法)
次に、図2等を参照し、仕口部材1を用いた接合構造の構築方法について説明する。
(2. Method for constructing a joint structure using joint member 1)
Next, a method for constructing a joint structure using the joint member 1 will be described with reference to FIG.

本実施形態では、図2(a)に示すように下階の木質柱2の建て込みを行った後、図2(b)に示すように木質柱2の上に仕口部材1を設置する。この際、木質柱2の端面(上端面)21から突出した棒材22を、仕口部材1の下側のダイアフラム12の孔121に挿通し、孔121から突出する棒材22の突出部分にナット25を締め込む。 In this embodiment, after erecting the wooden column 2 of the lower floor as shown in FIG. 2(a), the joint member 1 is installed on top of the wooden column 2 as shown in FIG. 2(b). At this time, the bar 22 protruding from the end face (upper end face) 21 of the wooden column 2 is inserted into the hole 121 of the diaphragm 12 below the joint member 1, and a nut 25 is tightened to the protruding portion of the bar 22 protruding from the hole 121.

ここで、ダイアフラム12の外縁は、木質柱2の外縁と同位置または木質柱2の外縁より外側に位置する。ダイアフラム12の外縁を木質柱2の外縁より内側とすると、後述する鉄骨梁3のフランジ31とダイアフラム12の溶接作業が難しくなるためである。ただし、木質柱2の側面を一部切り欠くことで、ダイアフラム12の外縁を木質柱2の外縁(の切欠部を除く部分)の内側に位置させつつ、当該切欠部において溶接を行うことは可能である。 The outer edge of the diaphragm 12 is located at the same position as the outer edge of the wooden column 2 or outside the outer edge of the wooden column 2. If the outer edge of the diaphragm 12 were located inside the outer edge of the wooden column 2, it would be difficult to weld the flange 31 of the steel beam 3 to the diaphragm 12, as described below. However, by cutting out a portion of the side of the wooden column 2, it is possible to position the outer edge of the diaphragm 12 inside the outer edge of the wooden column 2 (excluding the cutout portion) and perform welding at the cutout portion.

また、仕口部材1は、工場において鋼管111にコンクリート112を充填したプレキャスト部材として製作し、これを現場搬入して用いることが望ましいが、現場で鋼管111にコンクリート112を充填してもよい。前者の場合、上側のダイアフラム12の開口122からコンクリート112を充填して製作した仕口部材1を、現場で上下反転して設置することで、下側のダイアフラム12に開口122が位置することとなる場合もある。 It is preferable that the joint member 1 is manufactured in a factory as a precast member by filling the steel pipe 111 with concrete 112 and then transported to the site for use, but the concrete 112 may also be filled into the steel pipe 111 on-site. In the former case, the joint member 1 manufactured by filling the concrete 112 through the opening 122 of the upper diaphragm 12 may be installed upside down on-site, so that the opening 122 is located in the lower diaphragm 12.

棒材22についても、事前に工場で木質柱2に固定してもよく、現場で木質柱2に固定してもよい。ただし、孔23内での棒材22の位置調整や充填材24の温度管理を現場で行うことはやや困難であり、この点では前者の方が好ましい。 The rod 22 may also be fixed to the wooden pillar 2 in advance at a factory, or may be fixed to the wooden pillar 2 on-site. However, it is somewhat difficult to adjust the position of the rod 22 in the hole 23 and to control the temperature of the filler material 24 on-site, and in this respect the former is preferable.

図2の説明に戻る。本実施形態では、次に、図2(c)に示すように、鉄骨梁3のウェブ32の梁軸方向の端部を仕口部材1の接合板113に重ね、ボルト33を用いてウェブ32の当該端部と接合板113とを接合する。ボルト33には高力ボルトが用いられる。また、鉄骨梁3のフランジ31の梁軸方向の端部は、突き合わせ溶接によりダイアフラム12に接合する。これにより、仕口部材1と鉄骨梁3が接合される。 Returning to the explanation of FIG. 2, in this embodiment, next, as shown in FIG. 2(c), the end of the web 32 of the steel beam 3 in the beam axis direction is placed on the joint plate 113 of the joint member 1, and the end of the web 32 is joined to the joint plate 113 using a bolt 33. A high-strength bolt is used for the bolt 33. In addition, the end of the flange 31 of the steel beam 3 in the beam axis direction is joined to the diaphragm 12 by butt welding. This joins the joint member 1 and the steel beam 3.

その後、図2(d)に示すように、仕口部材1の上に上階の木質柱2を建て込む。当該木質柱2の端面(下端面)にも、前記と同様に棒材22が設けられており、当該棒材22が仕口部材1の上側のダイアフラム12の孔121に挿通され、孔121から突出する棒材22の突出部分にナット(不図示)が締め込まれる。 Then, as shown in FIG. 2(d), the wooden column 2 for the upper floor is erected on top of the joint member 1. A rod 22 is also provided on the end face (lower end face) of the wooden column 2 in the same manner as above, and the rod 22 is inserted into the hole 121 in the diaphragm 12 on the upper side of the joint member 1, and a nut (not shown) is tightened onto the protruding part of the rod 22 protruding from the hole 121.

以上の工程により、木質柱2と鉄骨梁3を仕口部材1により接合した接合構造が構築される。仕口部材1には鉄骨梁3が平面において十字状に接続されるが、図2(c)、(d)では、説明のため、仕口部材1の手前側に接合される鉄骨梁3の図示を省略している。 Through the above steps, a joint structure is constructed in which the wooden column 2 and the steel beam 3 are joined by the joint member 1. The steel beam 3 is connected to the joint member 1 in a cross shape in plan, but for the sake of explanation, the steel beam 3 joined to the front side of the joint member 1 is not shown in Figures 2(c) and (d).

以上説明したように、本実施形態では、仕口部材1と木質柱2との接合を、木質柱2の端面から突出し、且つ仕口部材1のダイアフラム12の孔121に通された棒材22を用いて容易に行える。また仕口部材1と鉄骨梁3との接合もボルト33等を用いた簡易なものであり、木質柱2や鉄骨梁3を仕口部材1を介して容易に接合でき、生産性が高い。 As described above, in this embodiment, the joint member 1 and the wooden column 2 can be easily joined by using a bar 22 that protrudes from the end face of the wooden column 2 and passes through a hole 121 in the diaphragm 12 of the joint member 1. The joint member 1 and the steel beam 3 are also easily joined by using a bolt 33 or the like, so the wooden column 2 and the steel beam 3 can be easily joined via the joint member 1, and productivity is high.

また、仕口部材1により木質柱2と鉄骨梁3とが剛接合されるので、鉄骨梁3に生じるモーメントを木質柱2に伝達させてエネルギー吸収能力を確保し、靭性能に優れた架構とすることができる。また、木質柱2を採用することで建物重量を低減でき、地震力の低減、基礎構造の簡略化、施工時の揚重量の低減による生産性向上効果が期待できる。 In addition, because the wooden columns 2 and steel beams 3 are rigidly connected by the joint members 1, the moment generated in the steel beams 3 can be transmitted to the wooden columns 2, ensuring energy absorption capacity and creating a structure with excellent toughness. In addition, the use of wooden columns 2 can reduce the building weight, which is expected to reduce seismic forces, simplify the foundation structure, and improve productivity by reducing the lifting weight during construction.

しかしながら、本発明は以上の実施形態に限定されない。例えば、本実施形態では仕口部材1のダイアフラム12の各辺に鉄骨梁3を接合するが、一部の辺のみに鉄骨梁3を接合してもよい。 However, the present invention is not limited to the above embodiment. For example, in this embodiment, the steel beams 3 are joined to each side of the diaphragm 12 of the joint member 1, but the steel beams 3 may be joined to only some of the sides.

また、棒材22の木質柱2への固定方法も前記に限らない。例えば棒材22を頭付きのボルトとし、仕口部材1のダイアフラム12の孔121に挿通した当該ボルトの軸部を、木質柱2に予め埋設したラグスクリューボルト(雌ねじ)に螺合させてもよい。 The method of fixing the rod 22 to the wooden column 2 is not limited to the above. For example, the rod 22 may be a headed bolt, and the shaft of the bolt inserted into the hole 121 of the diaphragm 12 of the joint member 1 may be screwed into a lag screw bolt (female thread) that is embedded in the wooden column 2 beforehand.

また仕口部材1の構成も上記したものに限らない。例えば本体11を、鋼管111内にコンクリート112を充填したものとせず、H型鋼を十字に組み合わせたものとしてもよい。ただし、木質柱2と鉄骨梁3の接合部には主にせん断耐力と軸耐力とが求められ、特に軸耐力に対してはコンクリート112の寄与が大きい。そのため、本体11を鋼管111にコンクリート112を充填したものとすることで、鋼材量を少なくしつつ高い耐力を確保することができ、コストを抑えることができる。 The configuration of the joint member 1 is not limited to that described above. For example, the main body 11 may be made of H-shaped steel beams arranged in a cross shape, rather than being made of steel pipes 111 filled with concrete 112. However, the joint between the wooden column 2 and the steel beam 3 is required to have shear strength and axial strength, and the concrete 112 contributes greatly to axial strength. Therefore, by making the main body 11 of steel pipes 111 filled with concrete 112, it is possible to ensure high strength while reducing the amount of steel, and to reduce costs.

その他、図3(a)の仕口部材1aに示すように、ダイアフラム12の本体11と反対側の面に、ダイアフラム12から突出する突起(シアーコッター)14を固定してもよい。木質柱2と仕口部材1aとの接合時には、図3(b)に鉛直断面を示す木質柱2のように、木質柱2の端面21に形成した凹部26に突起14を挿入し、ダイアフラム12と当該端面21との間にモルタル等の充填材4を充填する。これにより、木質柱2と鉄骨梁3の接合部に作用するせん断力に対する補強を行うことができる。 As shown in the joint member 1a in FIG. 3(a), a projection (sheer cotter) 14 protruding from the diaphragm 12 may be fixed to the surface of the diaphragm 12 opposite the main body 11. When joining the wooden column 2 and the joint member 1a, as shown in the vertical cross section of the wooden column 2 in FIG. 3(b), the projection 14 is inserted into a recess 26 formed in the end face 21 of the wooden column 2, and a filler material 4 such as mortar is filled between the diaphragm 12 and the end face 21. This provides reinforcement against shear forces acting on the joint between the wooden column 2 and the steel beam 3.

なお、図3(a)、(b)は本体11の上側のダイアフラム12の突起14を上階の木質柱2との接合に利用する例であるが、本体11の下側のダイアフラム12にも同様の突起14が設けられ、下階の木質柱2が図3(b)と同様に接合される。 Note that Figures 3(a) and (b) show an example in which the protrusions 14 on the diaphragm 12 on the upper side of the main body 11 are used to connect to the wooden column 2 on the upper floor, but a similar protrusion 14 is also provided on the diaphragm 12 on the lower side of the main body 11, and the wooden column 2 on the lower floor is connected in the same manner as in Figure 3(b).

また、第1の実施形態では開口122がダイアフラム12の中央部に設けられるが、図3(a)の例では、強度等の面を考慮し、開口122を、仕口部材1aに接続される鉄骨梁3の中心線の位置を避けて設けている。この例では仕口部材1aに平面十字状に鉄骨梁3が接続されるものとし、それらの中心線を避けた位置で複数(図の例では4つ)の開口122が設けられる。 In the first embodiment, the opening 122 is provided in the center of the diaphragm 12, but in the example of FIG. 3(a), the opening 122 is provided away from the center line of the steel beam 3 connected to the joint member 1a, taking into consideration strength and other aspects. In this example, the steel beam 3 is connected to the joint member 1a in a planar cross shape, and multiple openings 122 (four in the example shown) are provided at positions that avoid their center lines.

また、図3(c)の仕口部材1bに示すように、ダイアフラム12の各辺の中央部に外側へと突出する突出片123を設け、鉄骨梁3と仕口部材1bとの接合時に、鉄骨梁3のフランジ31をこの突出片123に溶接するようにしてもよい。これにより木質柱2から離れた位置で溶接作業を行うことができ、作業が容易になる。またダイアフラム12の平面寸法を小さくし、突出片123を除く部分の外縁を、木質柱2の外縁と同位置または木質柱2の外縁より内側に位置させることも可能である。 As shown in Fig. 3(c) of joint member 1b, protruding pieces 123 protruding outward may be provided at the center of each side of diaphragm 12, and flanges 31 of steel beam 3 may be welded to these protruding pieces 123 when joining steel beam 3 to joint member 1b. This allows welding work to be performed at a position away from wooden column 2, making the work easier. It is also possible to reduce the planar dimensions of diaphragm 12 and position the outer edge of the part excluding protruding pieces 123 at the same position as the outer edge of wooden column 2 or further inward than the outer edge of wooden column 2.

さらに、図4(a)に側面を示す仕口部材1cのように、接合板113aを上下のダイアフラム12同士を連結するように設けることにより、接合板113aをダイアフラム12の補強部材として機能させることも可能である。接合板113aは、木質柱2の曲げに伴うダイアフラム12の面外変形に抵抗し、また仕口部材1cの軸耐力も向上させることができる。 Furthermore, by providing a joint plate 113a to connect the upper and lower diaphragms 12 together, as in the case of joint member 1c shown in the side view of Figure 4 (a), it is possible to make the joint plate 113a function as a reinforcing member for the diaphragm 12. The joint plate 113a resists the out-of-plane deformation of the diaphragm 12 caused by bending of the wooden column 2, and also improves the axial strength of the joint member 1c.

また、図4(b)に側面を示す仕口部材1dのように、三角形状の補強部材であるリブ15を、本体11と下側のダイアフラム12との隅部に固定してもよい。この場合も、リブ15によりダイアフラム12の面外変形に抵抗させることができる。リブ15は本体11と上側のダイアフラム12との隅部に固定してもよい。リブ15の形状や数等は特に限定されず、リブ15の平面位置も、接合板113と干渉しない位置であれば特に限定されない。 Also, as in the case of joint member 1d shown in the side view of FIG. 4(b), a triangular reinforcing member, rib 15, may be fixed to the corner between main body 11 and lower diaphragm 12. In this case as well, rib 15 can resist out-of-plane deformation of diaphragm 12. Rib 15 may be fixed to the corner between main body 11 and upper diaphragm 12. There are no particular limitations on the shape or number of rib 15, and there are no particular limitations on the planar position of rib 15, so long as it does not interfere with joining plate 113.

また、図4(c)に側面を示す仕口部材1eのように、柱状の補強部材16を上下のダイアフラム12を連結するように固定してもよい。図4(d)は本体11の高さにおける仕口部材1eの水平断面を示す図であり、補強部材16はダイアフラム12の四隅に設けられる。補強部材16により仕口部材1eの軸耐力が向上し、ダイアフラム12の面外変形も抑制される。なお補強部材16の形状や数は特に限定されない。また補強部材16の平面位置もダイアフラム12の四隅に限らない。 Also, as with joint member 1e shown in the side view of Figure 4(c), columnar reinforcing members 16 may be fixed to connect the upper and lower diaphragms 12. Figure 4(d) is a diagram showing a horizontal cross section of joint member 1e at the height of main body 11, with reinforcing members 16 provided at the four corners of diaphragm 12. Reinforcing members 16 improve the axial strength of joint member 1e and suppress out-of-plane deformation of diaphragm 12. The shape and number of reinforcing members 16 are not particularly limited. Furthermore, the planar positions of reinforcing members 16 are not limited to the four corners of diaphragm 12.

さらに、図5(a)に示すように、仕口部材1fの本体11とダイアフラム12から外側に突出するようにブラケット17を固定してもよい。ブラケット17には、上下のフランジ171とウェブ172とを有するH形鋼が用いられる。ブラケット17は、フランジ171をダイアフラム12に、ウェブ172を本体11に溶接することにより工場で予め固定される。 Furthermore, as shown in FIG. 5(a), a bracket 17 may be fixed so as to protrude outward from the body 11 and diaphragm 12 of the joint member 1f. The bracket 17 is made of an H-shaped steel having upper and lower flanges 171 and a web 172. The bracket 17 is pre-fixed at the factory by welding the flange 171 to the diaphragm 12 and the web 172 to the body 11.

仕口部材1fと鉄骨梁3との接合時には、図5(b)に示すように、鉄骨梁3のフランジ31とブラケット17のフランジ171を一対の添接板18で挟み込み、これらの添接板18とフランジ31、171とをボルト19を用いて締結する。ボルト19には高力ボルトが用いられる。鉄骨梁3のウェブ32についても同様に、鉄骨梁3のウェブ32とブラケット17のウェブ172を一対の添接板18で挟み込み、これらの添接板18とウェブ32、172とをボルト19を用いて締結する When joining the joint member 1f and the steel beam 3, as shown in FIG. 5(b), the flange 31 of the steel beam 3 and the flange 171 of the bracket 17 are sandwiched between a pair of splice plates 18, and these splice plates 18 and the flanges 31, 171 are fastened together with bolts 19. High-strength bolts are used for the bolts 19. Similarly, for the web 32 of the steel beam 3, the web 32 of the steel beam 3 and the web 172 of the bracket 17 are sandwiched between a pair of splice plates 18, and these splice plates 18 and the webs 32, 172 are fastened together with bolts 19.

前記のようにダイアフラム12に鉄骨梁3のフランジ31を溶接する場合、木質柱2が燃えるのを防ぐために火花養生が必要となるが、ブラケット17を用いてボルト接合することにより、養生を省略できる。ただし、ブラケット17のフランジ171と鉄骨梁3のフランジ31を溶接により接合することも可能である。 When welding the flange 31 of the steel beam 3 to the diaphragm 12 as described above, spark protection is required to prevent the wooden column 2 from burning, but protection can be omitted by using the bracket 17 for bolt connection. However, it is also possible to connect the flange 171 of the bracket 17 and the flange 31 of the steel beam 3 by welding.

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。 The above describes preferred embodiments of the present invention with reference to the attached drawings, but the present invention is not limited to these examples. It is clear that a person skilled in the art can come up with various modified or revised examples within the scope of the technical ideas disclosed in this application, and it is understood that these also naturally fall within the technical scope of the present invention.

1、1a、1b、1c、1d、1e、1f:仕口部材
2:木質柱
3:鉄骨梁
4、24:充填材
11:本体
12:ダイアフラム
14:突起
15:リブ
16:補強部材
17:ブラケット
18:添接板
19、33:ボルト
21:端面
22:棒材
23、121:孔
25:ナット
26:凹部
31、171:フランジ
32、172:ウェブ
111:鋼管
112:コンクリート
113、113a:接合板
122:開口
123:突出片
1, 1a, 1b, 1c, 1d, 1e, 1f: Joint member 2: Wooden column 3: Steel beam 4, 24: Filler 11: Main body 12: Diaphragm 14: Protrusion 15: Rib 16: Reinforcement member 17: Bracket 18: Splice plate 19, 33: Bolt 21: End surface 22: Bar material 23, 121: Hole 25: Nut 26: Recess 31, 171: Flange 32, 172: Web 111: Steel pipe 112: Concrete 113, 113a: Joint plate 122: Opening 123: Protruding piece

Claims (5)

木質材料を用いた柱と鉄骨梁との接合構造であって、
本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、
前記本体の側面には、前記本体の上下に設けられたダイアフラム同士を連結するように接合板が設けられており、
前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、
前記鉄骨梁のフランジが前記ダイアフラムに接合され、
前記鉄骨梁のウェブが、前記本体の前記接合板にボルトを用いて接合されたことを特徴とする接合構造。
A joint structure between a column made of wood material and a steel beam,
A joint member including a main body and diaphragms provided above and below the main body,
A joining plate is provided on a side surface of the main body so as to connect the diaphragms provided on the upper and lower parts of the main body,
The column and the joint member are joined together using a rod protruding from an end face of the column and inserted into a hole provided in the diaphragm,
The flange of the steel beam is joined to the diaphragm;
A joint structure characterized in that the web of the steel beam is joined to the joint plate of the main body using bolts.
木質材料を用いた柱と鉄骨梁との接合構造であって、
本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、
前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、かつ、前記ダイアフラムの前記本体と反対側の面に固定された前記ダイアフラムから突出する突起が、前記柱の端面に形成した凹部に挿入され、
前記鉄骨梁のフランジが前記ダイアフラムに接合され、
前記鉄骨梁のウェブが、前記本体にボルトを用いて接合されたことを特徴とする接合構造。
A joint structure between a column made of wood material and a steel beam,
A joint member including a main body and diaphragms provided above and below the main body,
A rod protruding from an end face of the column is inserted into a hole provided in the diaphragm to join the column and the joint member, and a protrusion protruding from the diaphragm fixed to a surface of the diaphragm opposite to the main body is inserted into a recess formed in the end face of the column,
The flange of the steel beam is joined to the diaphragm;
A joint structure characterized in that the web of the steel beam is joined to the main body using bolts.
木質材料を用いた柱と鉄骨梁との接合構造であって、
本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、
前記柱の端面に形成された非貫通孔から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、
前記鉄骨梁のフランジが前記ダイアフラムに接合され、
前記鉄骨梁のウェブが、前記本体にボルトを用いて接合されたことを特徴とする接合構造。
A joint structure between a column made of wood material and a steel beam,
A joint member including a main body and diaphragms provided above and below the main body,
The column and the joint member are joined using a rod protruding from a blind hole formed in an end surface of the column and inserted into a hole provided in the diaphragm,
The flange of the steel beam is joined to the diaphragm;
A joint structure characterized in that the web of the steel beam is joined to the main body using bolts.
木質材料を用いた柱と鉄骨梁との接合構造であって、
本体と、前記本体の上下に設けられたダイアフラムと、を備えた仕口部材を有し、
前記柱の端面から突出する棒材であって、前記ダイアフラムに設けられた孔に挿通された棒材を用いて前記柱と前記仕口部材が接合され、
前記鉄骨梁のフランジが前記ダイアフラムに接合され、
前記鉄骨梁のウェブが、前記本体にボルトを用いて接合され
前記本体は、鋼管の内部にコンクリートが充填されたものであることを特徴とする接合構造。
A joint structure between a column made of wood material and a steel beam,
A joint member including a main body and diaphragms provided above and below the main body,
The column and the joint member are joined together using a rod protruding from an end face of the column and inserted into a hole provided in the diaphragm,
The flange of the steel beam is joined to the diaphragm;
The web of the steel beam is connected to the main body using bolts ;
A joint structure characterized in that the main body is a steel pipe filled with concrete .
請求項に記載の接合構造の構築方法であって、
下階の前記柱を建て込む工程と、
下階の前記柱の上に前記仕口部材を設置し、当該柱と前記仕口部材の本体の下側のダイアフラムを前記棒材を用いて接合する工程と、
上階の前記柱と前記仕口部材の本体の上側のダイアフラムを前記棒材を用いて接合して上階の前記柱を建て込む工程と、
を具備し、
前記鉄骨梁のフランジが前記ダイアフラムに接合され、前記鉄骨梁のウェブが前記本体の前記接合板にボルトを用いて接合されることを特徴とする接合構造の構築方法。
A method for constructing a joint structure according to claim 1 , comprising the steps of:
erecting the pillars of the lower floor;
A step of installing the joint member on the column of the lower floor and joining the column and the lower diaphragm of the body of the joint member using the bar material;
a step of erecting the column of the upper floor by joining the column of the upper floor and the upper diaphragm of the body of the joint member using the bar material;
Equipped with
A method for constructing a joint structure, characterized in that a flange of the steel beam is joined to the diaphragm and a web of the steel beam is joined to the joint plate of the main body using bolts.
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JP2014109150A (en) 2012-12-03 2014-06-12 Takenaka Komuten Co Ltd Column-beam joint structure
JP2018012959A (en) 2016-07-20 2018-01-25 株式会社竹中工務店 Wooden column/beam joint structure

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Publication number Priority date Publication date Assignee Title
JP2014109150A (en) 2012-12-03 2014-06-12 Takenaka Komuten Co Ltd Column-beam joint structure
JP2018012959A (en) 2016-07-20 2018-01-25 株式会社竹中工務店 Wooden column/beam joint structure

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