JP7400270B2 - Column joint structure and column construction method - Google Patents
Column joint structure and column construction method Download PDFInfo
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- JP7400270B2 JP7400270B2 JP2019158274A JP2019158274A JP7400270B2 JP 7400270 B2 JP7400270 B2 JP 7400270B2 JP 2019158274 A JP2019158274 A JP 2019158274A JP 2019158274 A JP2019158274 A JP 2019158274A JP 7400270 B2 JP7400270 B2 JP 7400270B2
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- 238000010276 construction Methods 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 118
- 239000010959 steel Substances 0.000 claims description 118
- 230000002787 reinforcement Effects 0.000 claims description 58
- 239000011150 reinforced concrete Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 10
- 239000004567 concrete Substances 0.000 description 9
- 239000011178 precast concrete Substances 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Description
本発明は、鉄骨柱部材と鉄筋コンクリート柱部材とを接続して構成される柱の接合構造及び柱の構築方法に関する。 The present invention relates to a column joint structure constructed by connecting a steel frame column member and a reinforced concrete column member, and a column construction method.
従来、鉄骨柱部材の上に鉄筋コンクリート柱部材を接続した柱の接合構造が知られている。この接合構造においては、鉄骨柱部材の周囲に、鉄筋コンクリート柱部材の柱主筋を配置した後にコンクリートを打設して、鉄骨鉄筋コンクリートで構成される切替部分を設けていた。この切替部分は、現場でコンクリート打設する必要があり、時間が掛かっていた。 Conventionally, a column joint structure in which a reinforced concrete column member is connected to a steel frame column member is known. In this joint structure, the main reinforcement of the reinforced concrete column member is placed around the steel column member, and then concrete is poured to provide a switching part made of steel reinforced concrete. This switching part required pouring concrete on site, which took time.
また、鉄骨鉄筋コンクリートで構成される切替部分を設けずに、鉄筋コンクリート柱部材と鉄骨柱部材とを接続した柱構造が検討されている（例えば、特許文献１参照。）。この文献に記載の技術の接合構造は、第１部材と第２部材とを備える。第１部材は、中空管状部と、この内部に充填される第１コンクリートとを備える。第２部材は、一方の端部が、開口端を通って中空管状部の内部に配置される主筋と、主筋の周囲を囲繞するように配置される帯筋と、主筋及び帯筋における、中空管状部の内部に位置していない部分を覆うように打設された第２コンクリートとを備える。そして、中空管状部の外周部から、中空管状部の内部に至る配置で、第１部材から第２部材が抜け出してしまうことを防止する抜け出し防止筋を設ける。 Further, a column structure in which a reinforced concrete column member and a steel column member are connected without providing a switching portion made of steel-framed reinforced concrete is being considered (see, for example, Patent Document 1). The joining structure according to the technique described in this document includes a first member and a second member. The first member includes a hollow tubular portion and a first concrete filled inside the hollow tubular portion. The second member includes a main reinforcement whose one end passes through the open end and is arranged inside the hollow tubular part, a tie reinforcement arranged so as to surround the main reinforcement, and a hollow in the main reinforcement and the tie reinforcement. and a second concrete cast to cover a portion that is not located inside the tubular part. A slip-off prevention line is provided extending from the outer circumferential portion of the hollow tubular portion to the inside of the hollow tubular portion to prevent the second member from slipping out from the first member.
しかしながら、特許文献１に示す構造の切替部分においては、鉄筋の抜け止めを防止する部材を設ける必要があった。このため、鉄筋の抜け止め防止部材を設置するための時間が掛かっていた。 However, in the switching portion of the structure shown in Patent Document 1, it was necessary to provide a member to prevent the reinforcing bars from coming off. For this reason, it took time to install the member to prevent the reinforcing bars from coming off.
上記課題を解決する柱の接合構造は、鉄骨柱部材と鉄筋コンクリート柱部材とを接続して構成される柱の接合構造であって、前記鉄筋コンクリート柱部材の柱主筋を、前記鉄骨柱部材に固定した機械式継手を介して接続し、又は前記鉄骨柱部材に固定して接続する。ここで、鉄骨柱部材には、鉄骨の内部にコンクリートが充填された柱部材も含まれる。 A column joint structure that solves the above problem is a column joint structure constructed by connecting a steel column member and a reinforced concrete column member, the column main reinforcement of the reinforced concrete column member being fixed to the steel column member. It is connected via a mechanical joint or fixedly connected to the steel column member. Here, the steel frame column member also includes a column member in which the inside of a steel frame is filled with concrete.
上記課題を解決する柱の構築方法は、鉄骨柱部材と鉄筋コンクリート柱部材とを接続して構成される柱の構築方法であって、前記鉄筋コンクリート柱部材には、柱主筋が固定される機械式継手が埋設されており、前記鉄骨柱部材には、前記鉄筋コンクリート柱部材の柱主筋を固定する機械式継手が固定されており、前記鉄骨柱部材の前記機械式継手に、前記柱主筋を固定した後、前記柱主筋を前記鉄筋コンクリート柱部材の前記機械式継手に固定する。 A method for constructing a column that solves the above problem is a method for constructing a column configured by connecting a steel column member and a reinforced concrete column member, and the reinforced concrete column member is provided with a mechanical joint to which the main reinforcement of the column is fixed. is buried, and a mechanical joint that fixes the main column reinforcement of the reinforced concrete column member is fixed to the steel column member, and after the main column reinforcement is fixed to the mechanical joint of the steel column member. , fixing the column main reinforcement to the mechanical joint of the reinforced concrete column member.
本発明によれば、短時間で構築することができ、鉄筋コンクリート柱部材の柱主筋と鉄骨柱部材との間で、荷重による垂直力等の力を確実に伝達することができる。 According to the present invention, it can be constructed in a short time, and forces such as vertical force due to loads can be reliably transmitted between the main column reinforcement of the reinforced concrete column member and the steel column member.
（第１実施形態）
以下、図１及び図２を用いて、柱の接合構造及び柱の構築方法を具体化した第１実施形態を説明する。
(First embodiment)
Hereinafter, a first embodiment that embodies a column joint structure and a column construction method will be described using FIGS. 1 and 2.
図１（ａ）に示すように、本実施形態の柱の接合構造１０は、鉄骨柱部材１１と、この上に配置される鉄筋コンクリート柱部材（ＲＣ柱部材）１６とから構成される。本実施形態では、鉄骨柱部材１１の中心軸とＲＣ柱部材１６の中心軸が一致して構成される。また、鉄骨柱部材１１の上端部に、鉄骨梁１９が設けられる。 As shown in FIG. 1(a), the column joint structure 10 of this embodiment includes a steel column member 11 and a reinforced concrete column member (RC column member) 16 disposed thereon. In this embodiment, the central axis of the steel column member 11 and the central axis of the RC column member 16 are configured to coincide with each other. Furthermore, a steel beam 19 is provided at the upper end of the steel column member 11.
図１（ｂ）に示すように、鉄骨柱部材１１及びＲＣ柱部材１６の水平断面は、略正方形状をしており、鉄骨柱部材１１の水平断面は、ＲＣ柱部材１６の水平断面より小さい。
鉄骨柱部材１１は、４枚の板状の鉄骨プレート１１ａを四角い筒状に組み合わせて形成された柱部材である。
As shown in FIG. 1(b), the horizontal cross sections of the steel column member 11 and the RC column member 16 are approximately square, and the horizontal cross section of the steel column member 11 is smaller than the horizontal cross section of the RC column member 16. .
The steel column member 11 is a column member formed by combining four plate-shaped steel plates 11a into a square tube shape.
図１（ａ）に示すように、各鉄骨プレート１１ａには、鉄骨柱部材１１の外周面の上部となる位置に、複数の機械式継手１２が溶接されている。機械式継手１２は、例えば、ネジ式の機械式継手を用いる。この機械式継手１２は、ＲＣ柱部材１６の柱主筋１５に対応した位置に設けられる。この機械式継手１２は、予め工場等において、鉄骨プレート１１ａに溶接しておく。 As shown in FIG. 1(a), a plurality of mechanical joints 12 are welded to each steel plate 11a at a position on the upper part of the outer peripheral surface of the steel column member 11. As the mechanical joint 12, for example, a screw type mechanical joint is used. This mechanical joint 12 is provided at a position corresponding to the column main reinforcement 15 of the RC column member 16. This mechanical joint 12 is previously welded to the steel frame plate 11a at a factory or the like.
柱主筋１５は、機械式継手１２に固定するようにねじが形成されている。
ＲＣ柱部材１６は、複数の柱筋が内蔵されたコンクリート製の柱部材であり、工場等で予め作成されたプレキャストコンクリートである。このＲＣ柱部材１６の鉄骨柱部材１１側の端部には、機械式継手１７が埋設されている。この機械式継手１７として、モルタル充填式の機械式継手を用いることができる。この機械式継手１７の上部には、ＲＣ柱部材１６に内蔵された柱筋の主筋１８が固定されている。
The column main reinforcement 15 is threaded so as to be fixed to the mechanical joint 12.
The RC column member 16 is a concrete column member with a plurality of column reinforcements built in, and is precast concrete made in advance at a factory or the like. A mechanical joint 17 is embedded in the end of the RC column member 16 on the steel column member 11 side. As this mechanical joint 17, a mortar-filled mechanical joint can be used. The main reinforcement 18 of the column reinforcement built into the RC column member 16 is fixed to the upper part of this mechanical joint 17.
次に、図１及び図２を用いて、上述した柱の接合構造１０の構築方法について説明する。
まず、図２（ａ）に示すように、鉄骨柱部材１１を建て込む。この場合、機械式継手１２が上部に固定された４つの鉄骨プレート１１ａを、予め工場等において、機械式継手１２が外側に配置されるようにして組み合わせて、鉄骨プレート１１ａ間の接続部分を溶接して鉄骨柱部材１１を構築する。
Next, a method for constructing the above-mentioned column joint structure 10 will be explained using FIGS. 1 and 2.
First, as shown in FIG. 2(a), the steel column member 11 is erected. In this case, four steel plates 11a with mechanical joints 12 fixed to the top are assembled in advance in a factory or the like so that the mechanical joints 12 are placed on the outside, and the connecting parts between the steel plates 11a are welded. Then, the steel column member 11 is constructed.
そして、図２（ｂ）に示すように、機械式継手１２に柱主筋１５（連結筋）を挿入する。この場合には、機械式継手１２に柱主筋１５の下部を螺合させることにより、柱主筋１５を鉄骨柱部材１１に固定する。 Then, as shown in FIG. 2(b), the column main reinforcement 15 (connection reinforcement) is inserted into the mechanical joint 12. In this case, the column main reinforcement 15 is fixed to the steel column member 11 by screwing the lower part of the column main reinforcement 15 into the mechanical joint 12 .
そして、柱主筋１５を、ＲＣ柱部材１６の機械式継手１７に差し込むように、ＲＣ柱部材１６を配置する。そして、柱主筋１５を挿入した機械式継手１７にモルタルを注入することにより、柱主筋１５をＲＣ柱部材１６に固定する。これにより、ＲＣ柱部材１６は、柱主筋１５を介して、鉄骨柱部材１１とＲＣ柱部材１６とが接合される。 Then, the RC column member 16 is arranged so that the column main reinforcement 15 is inserted into the mechanical joint 17 of the RC column member 16. Then, the column main reinforcement 15 is fixed to the RC column member 16 by injecting mortar into the mechanical joint 17 into which the column main reinforcement 15 has been inserted. Thereby, in the RC column member 16, the steel frame column member 11 and the RC column member 16 are joined via the column main reinforcement 15.
本実施形態によれば、以下のような効果を得ることができる。
（１－１）本実施形態では、鉄骨柱部材１１に溶接した機械式継手１２に、ＲＣ柱部材１６の柱主筋１５を固定する。これにより、ＲＣ柱部材１６の柱主筋１５と、鉄骨柱部材１１とを、機械式継手１２を介して接続するので、柱主筋１５に加わる荷重による垂直力等の力を鉄骨柱部材１１に確実に伝達することができる。
According to this embodiment, the following effects can be obtained.
(1-1) In this embodiment, the main column reinforcement 15 of the RC column member 16 is fixed to the mechanical joint 12 welded to the steel column member 11. As a result, the main column reinforcement 15 of the RC column member 16 and the steel column member 11 are connected via the mechanical joint 12, so that forces such as vertical force due to the load applied to the main column reinforcement 15 are reliably applied to the steel column member 11. can be transmitted to.
通常、鉄骨柱は、耐火被覆をして仕上げを行なうため、仕上面は、鉄骨柱の外周よりも大きくなる。鉄骨柱部材１１の断面積を、ＲＣ柱部材１６の断面積よりも小さくすることにより、鉄骨柱部材１１の仕上面を、ＲＣ柱部材１６の仕上面と面一又はＲＣ柱部材１６の仕上面よりも内側に設けることができ、デザインの幅を広げることができる。例えば、鉄骨柱部材１１により大空間のフロアを構成し、ＲＣ柱部材１６により小部屋からなる居住フロアを構成することができる。 Usually, steel columns are finished with a fireproof coating, so the finished surface is larger than the outer circumference of the steel column. By making the cross-sectional area of the steel column member 11 smaller than the cross-sectional area of the RC column member 16, the finished surface of the steel column member 11 can be flush with the finished surface of the RC column member 16 or the finished surface of the RC column member 16. It can be placed on the inner side, allowing for a wider range of designs. For example, the steel column members 11 can constitute a floor of a large space, and the RC column members 16 can constitute a residential floor consisting of small rooms.
（１－２）本実施形態では、ＲＣ柱部材１６をプレキャストコンクリートで形成する。これにより、現場においてコンクリート打設を行なわないため、柱の接合構造１０を短時間で構築することができる。 (1-2) In this embodiment, the RC column member 16 is formed of precast concrete. As a result, the column joint structure 10 can be constructed in a short time because concrete is not poured on site.
（１－３）本実施形態では、機械式継手１２を予め溶接した鉄骨プレート１１ａを用いて、鉄骨柱部材１１を構成する。これにより、現場における溶接作業がないため、柱の接合構造１０を短時間で構築することができる。 (1-3) In this embodiment, the steel column member 11 is constructed using the steel plate 11a to which the mechanical joint 12 is welded in advance. Thereby, there is no on-site welding work, so the column joint structure 10 can be constructed in a short time.
（第２の実施形態）
次に、図３を用いて、柱の接合構造及び柱の構築方法を具体化した第２実施形態を説明する。本実施形態は、第１実施形態の鉄骨柱部材１１を変更したのみの構成であるため、同様の部分については、同一の符号を付し、その詳細な説明を省略する。
(Second embodiment)
Next, a second embodiment that embodies a column joint structure and a column construction method will be described using FIG. 3. Since this embodiment has a configuration in which only the steel column member 11 of the first embodiment is changed, similar parts are given the same reference numerals and detailed explanation thereof will be omitted.
図３（ａ）に示すように、本実施形態の接合構造２０においては、鉄骨柱部材２１の上に、ＲＣ柱部材１６が接続される。
上記実施形態と同様に、鉄骨柱部材２１の中心軸がＲＣ柱部材１６の中心軸と同じであり、鉄骨柱部材２１の断面は、ＲＣ柱部材１６の断面よりも小さい。また、鉄骨柱部材２１の上端部に、鉄骨梁２９が設けられる。
As shown in FIG. 3(a), in the joint structure 20 of this embodiment, the RC column member 16 is connected on top of the steel column member 21. As shown in FIG.
Similar to the above embodiment, the central axis of the steel column member 21 is the same as the central axis of the RC column member 16, and the cross section of the steel column member 21 is smaller than the cross section of the RC column member 16. Furthermore, a steel beam 29 is provided at the upper end of the steel column member 21 .
図３（ｂ）に示すように、鉄骨柱部材２１を構成する鉄骨プレート２１ａには、ＲＣ柱部材１６の柱主筋１５に対応した位置であって、鉄骨柱部材１１の内周面の上部となる位置に、機械式継手２２が溶接されている。
本実施形態においても、上記第１実施形態と同様にして、柱の接合構造２０を構築する。
As shown in FIG. 3(b), the steel plate 21a constituting the steel column member 21 has a position corresponding to the column main reinforcement 15 of the RC column member 16, and the upper part of the inner circumferential surface of the steel column member 11. A mechanical joint 22 is welded at this location.
In this embodiment as well, the column joint structure 20 is constructed in the same manner as in the first embodiment.
本実施形態によれば、上記（１－１）～（１－３）に記載の効果と同様な効果に加えて、以下の効果を得ることができる。
（２－１）本実施形態では、鉄骨プレート２１ａの内側に機械式継手２２を設けた。これにより、鉄骨柱部材２１の外表面を滑らかにすることができ、仕上げ加工を容易に行なうことができる。
According to this embodiment, in addition to the effects similar to those described in (1-1) to (1-3) above, the following effects can be obtained.
(2-1) In this embodiment, the mechanical joint 22 is provided inside the steel plate 21a. Thereby, the outer surface of the steel column member 21 can be made smooth, and finishing processing can be easily performed.
本実施形態は、以下のように変更して実施することができる。本実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・上記第１実施形態では、鉄骨柱部材１１の外側に機械式継手１２を溶接し、上記第２実施形態では、鉄骨柱部材２１の内側に機械式継手２２を溶接した。機械式継手１２を設ける位置は、内側又は外側に限定されるものでない。例えば、鉄筋コンクリート柱部材に埋設する柱主筋１５の位置や、鉄骨柱部材の形状等によっては、一部の機械式継手を鉄骨柱部材１１の内側、残りの機械式継手を鉄骨柱部材１１の外側に溶接してもよい。
This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- In the first embodiment, the mechanical joint 12 is welded to the outside of the steel column member 11, and in the second embodiment, the mechanical joint 22 is welded to the inside of the steel column member 21. The location where the mechanical joint 12 is provided is not limited to the inside or outside. For example, depending on the position of the main column reinforcement 15 buried in the reinforced concrete column member, the shape of the steel column member, etc., some mechanical joints may be placed inside the steel column member 11, and the remaining mechanical joints may be placed outside the steel column member 11. It may be welded to
・上記各実施形態では、ＲＣ柱部材１６を、柱主筋１５を固定する機械式継手１２を埋設したプレキャストコンクリートで構成した。ＲＣ柱部材１６として、機械式継手１２の代わりに、柱主筋１５を直接、埋設したプレキャストコンクリートを用いてもよい。具体的には、図４（ａ）に示すように、鉄筋コンクリート柱部材（ＲＣ柱部材）２６を、柱主筋２６ａが下方に突出したプレキャストコンクリートで構成してもよい。この場合、ＲＣ柱部材２６の複数の柱主筋２６ａを個別に回転させることはできないため、鉄骨柱部材１１に溶接される機械式継手３２として、モルタル充填式の機械式継手を用いる。 - In each of the above embodiments, the RC column member 16 is made of precast concrete in which the mechanical joint 12 for fixing the column main reinforcement 15 is embedded. As the RC column member 16, instead of the mechanical joint 12, precast concrete in which the column main reinforcement 15 is directly buried may be used. Specifically, as shown in FIG. 4(a), the reinforced concrete column member (RC column member) 26 may be made of precast concrete in which the column main reinforcing bars 26a protrude downward. In this case, since the plurality of column main reinforcements 26a of the RC column member 26 cannot be rotated individually, a mortar-filled mechanical joint is used as the mechanical joint 32 welded to the steel column member 11.
・上記実施形態では、鉄骨柱部材１１，２１は、機械式継手１２，２２を介して、柱主筋１５を固定した。鉄骨柱部材に柱主筋を固定する構成は、機械式継手を介して行なう構成に限られず、機械式継手を省略してもよい。具体的には、図４（ｂ）に示すように、鉄骨柱部材３１に柱主筋２５を溶接する。そして、この柱主筋２５を、ＲＣ柱部材１６に埋設した機械式継手１７に挿入する。 - In the above embodiment, the main column reinforcement 15 is fixed to the steel column members 11 and 21 via the mechanical joints 12 and 22. The structure for fixing the column main reinforcement to the steel column member is not limited to the structure using a mechanical joint, and the mechanical joint may be omitted. Specifically, as shown in FIG. 4(b), the main column reinforcement 25 is welded to the steel column member 31. The main column reinforcement 25 is then inserted into the mechanical joint 17 embedded in the RC column member 16.
・上記実施形態では、鉄骨柱部材１１，２１に設けた機械式継手１２，２２，３２として、ネジ式の機械式継手やモルタル充填式の機械式継手を用いる。また、ＲＣ柱部材１６に埋設される機械式継手１７として、モルタル充填式の機械式継手を用いる。鉄骨柱部材１１，２１とＲＣ柱部材１６の柱主筋とを固定することができれば、機械式継手の種類は限定されない。 - In the above embodiment, a screw-type mechanical joint or a mortar-filled mechanical joint is used as the mechanical joints 12, 22, 32 provided on the steel column members 11, 21. Further, as the mechanical joint 17 buried in the RC column member 16, a mortar-filled mechanical joint is used. The type of mechanical joint is not limited as long as the steel column members 11 and 21 and the main column reinforcement of the RC column member 16 can be fixed.
・上記各実施形態の接合構造１０，２０は、鉄骨柱部材１１の中心軸とＲＣ柱部材１６の中心軸が一致して構成される。鉄骨柱部材１１とＲＣ柱部材１６との配置は、これに限らない。例えば、鉄骨柱部材の中心軸と鉄筋コンクリート柱部材の中心軸とをずらした柱の接合構造としてもよい。 - The joint structures 10 and 20 of each of the above embodiments are configured such that the central axis of the steel column member 11 and the central axis of the RC column member 16 coincide. The arrangement of the steel column member 11 and the RC column member 16 is not limited to this. For example, a column joint structure may be used in which the center axis of the steel frame column member and the center axis of the reinforced concrete column member are offset.
例えば、図５（ａ）に示す接合構造４０は、鉄骨柱部材４１と、この鉄骨柱部材４１の上に設けた鉄筋コンクリート柱部材（ＲＣ柱部材）４６とから構成される。鉄骨柱部材４１は、鉄骨梁４９が接続される仕口部において、ＲＣ柱部材４６の位置に応じて、断面が大きくなるように配置されている。図５（ｂ）は５ｂ－５ｂ線断面図、図５（ｃ）は５ｃ－５ｃ線断面図である。 For example, the joint structure 40 shown in FIG. 5(a) includes a steel column member 41 and a reinforced concrete column member (RC column member) 46 provided on the steel column member 41. The steel column member 41 is arranged so that its cross section becomes larger depending on the position of the RC column member 46 at the joint portion to which the steel beam 49 is connected. FIG. 5(b) is a sectional view taken along the line 5b-5b, and FIG. 5(c) is a sectional view taken along the line 5c-5c.
鉄骨柱部材４１は、鉄骨プレート４１ａ、取付部材４１ｂ、補強部材４１ｃ及びダイヤフラム４３を備える。鉄骨プレート４１ａは、鉄骨柱部材４１の外周を構成する板状部材である。取付部材４１ｂ及び補強部材４１ｃは、ＲＣ柱部材４６の真下に配置された板状部材であって、ＲＣ柱部材４６の重量を支える。更に、取付部材４１ｂ及び補強部材４１ｃの両端部が、鉄骨プレート４１ａに溶接されており、ＲＣ柱部材４６の重量を鉄骨プレート４１ａに伝達する。 The steel column member 41 includes a steel plate 41a, a mounting member 41b, a reinforcing member 41c, and a diaphragm 43. The steel plate 41a is a plate-like member that forms the outer periphery of the steel column member 41. The mounting member 41b and the reinforcing member 41c are plate-like members disposed directly below the RC column member 46, and support the weight of the RC column member 46. Further, both ends of the mounting member 41b and the reinforcing member 41c are welded to the steel plate 41a, and the weight of the RC column member 46 is transmitted to the steel plate 41a.
図５（ｄ）に示すように、取付部材４１ｂの上側端部には、機械式継手４２の位置に応じた切り欠きＳ１が設けられている。この切り欠きＳ１により、機械式継手４２を溶接する際の機械式継手４２のスペースを確保している。また、補強部材４１ｃの上側端部は、取付部材４１ｂと同様に、機械式継手４２の位置に応じた切り欠きが設けられている。 As shown in FIG. 5(d), a notch S1 corresponding to the position of the mechanical joint 42 is provided at the upper end of the mounting member 41b. This notch S1 secures a space for the mechanical joint 42 when the mechanical joint 42 is welded. Further, the upper end of the reinforcing member 41c is provided with a notch corresponding to the position of the mechanical joint 42, similarly to the mounting member 41b.
図５（ｂ）に示すように、仕口部の鉄骨柱部材４１の右側に飛び出した鉄骨プレート４１ａ及び取付部材４１ｂには、機械式継手４２が溶接される。これら機械式継手４２には、ＲＣ柱部材４６の柱主筋４６ａが固定される。これにより、ＲＣ柱部材４６の中心軸Ｃ２を鉄骨柱部材４１の中心軸Ｃ１と一致させなくても、ＲＣ柱部材４６の柱主筋４６ａの荷重による垂直力等の力を、鉄骨柱部材４１に確実に伝達できる。従って、鉄骨柱部材４１とＲＣ柱部材４６との配置を変更することができるので、室内空間のデザインの自由度を高めることができる。
更に、ＲＣ柱部材４６に、柱主筋４６ａの代わりに機械式継手を埋設し、機械式継手に固定する柱主筋を、鉄骨柱部材４１の鉄骨プレート４１ａや取付部材４１ｂに、直接溶接してもよい。
As shown in FIG. 5(b), a mechanical joint 42 is welded to the steel plate 41a and attachment member 41b protruding from the right side of the steel column member 41 at the joint. Column main reinforcements 46a of the RC column member 46 are fixed to these mechanical joints 42. As a result, even if the central axis C2 of the RC column member 46 does not match the central axis C1 of the steel column member 41, forces such as vertical force due to the load of the main column reinforcement 46a of the RC column member 46 can be applied to the steel column member 41. Can be communicated reliably. Therefore, since the arrangement of the steel column member 41 and the RC column member 46 can be changed, the degree of freedom in designing the indoor space can be increased.
Furthermore, a mechanical joint may be buried in the RC column member 46 instead of the column main reinforcement 46a, and the column main reinforcement fixed to the mechanical joint may be directly welded to the steel plate 41a of the steel column member 41 or the mounting member 41b. good.
・上記各実施形態では、鉄骨柱部材１１，２１を、４つの鉄骨プレート１１ａ，２１ａを組み立てることにより構成した。鉄骨柱部材１１，２１の構成は、鉄骨プレートを組み立てる場合に限られず、例えば、鋼管によって構成してもよい。更に、鉄骨柱部材１１，２１の代わりに、この内部にコンクリートを流し込んだコンクリート充填鋼管構造（ＣＦＴ：Concrete Filled Steel Tube）を用いて、柱の接合構造を構成してもよい。 - In each of the above embodiments, the steel column members 11 and 21 are constructed by assembling four steel plates 11a and 21a. The structure of the steel column members 11 and 21 is not limited to the case where steel frame plates are assembled, but may be formed of steel pipes, for example. Further, instead of the steel column members 11 and 21, a concrete filled steel tube structure (CFT) in which concrete is poured may be used to form the column joint structure.
・上記各実施形態においては、鉄骨柱部材１１，２１及びＲＣ柱部材１６の水平断面は、略正方形状とした。これら柱の断面形状は、これに限られず、断面が円形状や楕円形状の柱であってもよい。また、鉄骨柱部材１１，２１及びＲＣ柱部材１６を、異なる断面形状で形成してもよい。 - In each of the above embodiments, the horizontal cross sections of the steel column members 11 and 21 and the RC column member 16 are approximately square. The cross-sectional shape of these pillars is not limited to this, and the pillars may have a circular or elliptical cross-section. Further, the steel column members 11 and 21 and the RC column member 16 may be formed with different cross-sectional shapes.
・上記実施形態では、鉄骨柱部材１１，２１の上に、ＲＣ柱部材１６を接続した。これに限られず、鉄筋コンクリート柱部材の上に、鉄骨柱部材を接続した柱の接合構造としてもよい。この場合、鉄筋コンクリート柱部材として、上に突出させた柱主筋を埋設したプレキャストコンクリートを用いてもよい。 - In the above embodiment, the RC column member 16 is connected on top of the steel column members 11 and 21. The present invention is not limited to this, and may be a column joint structure in which a steel frame column member is connected to a reinforced concrete column member. In this case, the reinforced concrete column member may be made of precast concrete in which the main reinforcement of the column that projects upward is buried.
・上記各実施形態においては、ＲＣ柱部材１６の柱主筋１５を、鉄骨柱部材１１，２１に設けた機械式継手１２，２２と溶接により固定した。ＲＣ柱部材の柱主筋を、鉄骨柱部材に設けた機械式継手と固定、又は鉄骨柱部材に直接固定する方法は、溶接に限られない。 - In each of the above embodiments, the main column reinforcement 15 of the RC column member 16 was fixed to the mechanical joints 12, 22 provided on the steel column members 11, 21 by welding. The method of fixing the main column reinforcement of the RC column member to a mechanical joint provided on the steel column member or directly to the steel column member is not limited to welding.
次に、上記実施形態及び別例から把握できる技術的思想について、以下に追記する。
（ａ）前記鉄筋コンクリート柱部材をプレキャストコンクリートで構成し、
前記プレキャストコンクリートに埋設された柱主筋、又は、前記プレキャストコンクリートに埋設された機械式継手に固定された主筋を、前記鉄骨柱部材に接続させることを特徴とする請求項１に記載の柱の接合構造。
（ｂ）前記鉄骨柱部材の上に、前記鉄筋コンクリート柱部材を配置したことを特徴とする請求項１又は（ａ）に記載の柱の接合構造。
（ｃ）前記鉄骨柱部材は、前記鉄骨柱部材を構成する鉄骨プレートに溶接して固定された取付部材を備え、
前記取付部材に、前記機械式継手又は前記柱主筋が溶接されていることを特徴とする請求項１、（ａ）又は（ｂ）に記載の柱の接合構造。
（ｄ）柱を構成する鉄骨柱部材であって、
鉄筋コンクリート柱部材に埋設される柱主筋の配置に対応させて溶接して固定された機械式継手を備えたことを特徴とする鉄骨柱部材。
Next, technical ideas that can be understood from the above embodiment and other examples will be additionally described below.
(a) The reinforced concrete column member is made of precast concrete,
The column connection according to claim 1, characterized in that a column main reinforcement embedded in the precast concrete or a main reinforcement fixed to a mechanical joint embedded in the precast concrete is connected to the steel column member. structure.
(b) The column joint structure according to claim 1 or (a), wherein the reinforced concrete column member is arranged on the steel frame column member.
(c) the steel column member includes a mounting member welded and fixed to a steel plate constituting the steel column member,
The column joint structure according to claim 1, (a) or (b), wherein the mechanical joint or the column main reinforcement is welded to the attachment member.
(d) A steel column member constituting a column,
A steel frame column member characterized by having a mechanical joint welded and fixed in correspondence with the arrangement of column main reinforcements buried in the reinforced concrete column member.
Ｃ１，Ｃ２…中心軸、Ｓ１…切り欠き、１０，２０，４０…接合構造、１１，２１，３１，４１…鉄骨柱部材、１１ａ，２１ａ，４１ａ…鉄骨プレート、１２，１７，２２，３２，４２…機械式継手、１５，２５，２６ａ，４６ａ…柱主筋、１６，２６，４６…鉄筋コンクリート柱部材（ＲＣ柱部材）、１８…主筋、１９，２９，４９…鉄骨梁、４１ｂ…取付部材、４１ｃ…補強部材、４３…ダイヤフラム。 C1, C2... Central axis, S1... Notch, 10, 20, 40... Joint structure, 11, 21, 31, 41... Steel column member, 11a, 21a, 41a... Steel plate, 12, 17, 22, 32, 42... Mechanical joint, 15, 25, 26a, 46a... Column main reinforcement, 16, 26, 46... Reinforced concrete column member (RC column member), 18... Main reinforcement, 19, 29, 49... Steel beam, 41b... Mounting member, 41c...Reinforcement member, 43...Diaphragm.
Claims (3)
前記鉄筋コンクリート柱部材に埋設され前記鉄筋コンクリート柱部材の柱主筋を固定している機械式継手に、前記鉄骨柱部材に固定したねじ式の機械式継手に螺合した連結筋を固定することにより、前記鉄筋コンクリート柱部材を前記鉄骨柱部材に接続したことを特徴とする柱の接合構造。 A column joint structure constructed by connecting a steel frame column member and a reinforced concrete column member,
By fixing the connecting reinforcement screwed to the screw-type mechanical joint fixed to the steel column member to the mechanical joint embedded in the reinforced concrete column member and fixing the column main reinforcement of the reinforced concrete column member , A column joint structure characterized in that a reinforced concrete column member is connected to the steel column member .
前記鉄筋コンクリート柱部材には、柱主筋が固定される機械式継手が埋設されており、
前記鉄骨柱部材には、ねじ式の機械式継手が固定されており、
前記鉄骨柱部材の前記機械式継手に連結筋を螺合して固定した後、前記連結筋を前記鉄筋コンクリート柱部材の前記機械式継手に固定することを特徴とする柱の構築方法。 A method for constructing a column by connecting a steel column member and a reinforced concrete column member, the method comprising:
A mechanical joint to which the column main reinforcement is fixed is embedded in the reinforced concrete column member,
A screw- type mechanical joint is fixed to the steel column member,
A method for constructing a column, comprising: screwing and fixing a connecting bar to the mechanical joint of the steel column member, and then fixing the connecting bar to the mechanical joint of the reinforced concrete column member.
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| JP2004092248A (en) | 2002-09-02 | 2004-03-25 | Artes Corp | Joint metal of anchor bar, joint structure using the same and joining method used for the same |
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| JPH08189092A (en) * | 1995-01-10 | 1996-07-23 | Kajima Corp | Method of jointing steel columns of different sectional form |
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| JP2004092248A (en) | 2002-09-02 | 2004-03-25 | Artes Corp | Joint metal of anchor bar, joint structure using the same and joining method used for the same |
| JP2005200994A (en) | 2004-01-19 | 2005-07-28 | Artes Corp | Joining structure of closed cross-sectional member |
| JP2013112972A (en) | 2011-11-28 | 2013-06-10 | Taisei Corp | Building structure |
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