JPH09317008A - Joint structure of filled steel tube concrete columns - Google Patents
Joint structure of filled steel tube concrete columnsInfo
- Publication number
- JPH09317008A JPH09317008A JP14053796A JP14053796A JPH09317008A JP H09317008 A JPH09317008 A JP H09317008A JP 14053796 A JP14053796 A JP 14053796A JP 14053796 A JP14053796 A JP 14053796A JP H09317008 A JPH09317008 A JP H09317008A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- filled
- concrete column
- filled steel
- joint structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
(57)【要約】
【課題】 特に溶接せずに剪断力の伝達が可能であり、
しかもコスト低減が図れる充填鋼管コンクリート柱の接
合構造を提供する。
【解決手段】 鋼管２Ａ、２Ｂの内部にコンクリート３
を充填してなる一対の充填鋼管コンクリート柱１Ａ、１
Ｂの接合構造において、一方の充填鋼管コンクリート柱
１Ａの鋼管２Ａの内端部に他方の充填鋼管コンクリート
柱１Ｂの端部を所定長さＬだけ差し込むことで重ね継手
を構成した。
(57) [Abstract] [Problem] It is possible to transmit shear force without welding.
Moreover, it provides a joint structure for a filled steel pipe concrete column that can reduce the cost. SOLUTION: Concrete 3 is placed inside steel pipes 2A, 2B.
A pair of filled steel pipe concrete columns 1A, 1
In the joint structure of B, the lap joint was configured by inserting the end portion of the other filled steel pipe concrete column 1B into the inner end portion of the steel pipe 2A of the one filled steel pipe concrete column 1A by a predetermined length L.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼管の内部にコン
クリートを充填してなる充填鋼管コンクリート柱の接合
構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for a filled steel pipe concrete column in which a steel pipe is filled with concrete.
【０００２】[0002]
【従来の技術】周知のように、充填鋼管コンクリート柱
は鋼管の内部にコンクリートを充填する一種の鉄骨コン
クリート複合構造であり、高層建築物の構造として近年
広く採用されるようになってきている。そのような充填
鋼管コンクリート柱を接合した構造として、従来次のも
のが知られている。2. Description of the Related Art As is well known, a filled steel tube concrete column is a kind of steel-concrete composite structure in which the inside of a steel tube is filled with concrete, and has recently been widely adopted as a structure of high-rise buildings. As a structure in which such a filled steel pipe concrete column is joined, the following is conventionally known.
【０００３】一つは、下側の充填鋼管コンクリート柱の
鋼管の上方に上側の充填鋼管コンクリート柱の鋼管を建
て込み、下側の鋼管の上端に上側の鋼管の下端を突き合
わせて周溶接し、鋼管の内部にコンクリートを打設する
ことにより、上下に連続した充填鋼管コンクリート柱を
構築するというものである。One is to build a steel pipe of an upper filled steel pipe concrete column above a steel pipe of a lower filled steel pipe concrete column, and to weld the lower end of the upper steel pipe to the upper end of the lower steel pipe by circumferential welding. By filling concrete inside a steel pipe, a continuous filled steel pipe concrete column is constructed up and down.
【０００４】また一つは、図１０に示すように、下側の
充填鋼管コンクリート柱１の鋼管２の上端外周に接合管
５の下半部を嵌挿し、この接合管５の上半部内に、上側
の充填鋼管コンクリート柱１の鋼管２の下端を差し込み
んで、その状態で接合管５の内部にコンクリート３を充
填し固化させることで、上下の充填鋼管コンクリート柱
１を連続化させるというものである。As shown in FIG. 10, the lower half of the joint pipe 5 is inserted into the outer periphery of the upper end of the steel pipe 2 of the lower filled steel pipe concrete column 1, and the lower half of the joint pipe 5 is inserted into the upper half of the joint pipe 5. By inserting the lower end of the steel pipe 2 of the upper filled steel pipe concrete pillar 1 and filling the inside of the joint pipe 5 with the concrete 3 to solidify it, the upper and lower filled steel pipe concrete pillars 1 are made continuous. is there.
【０００５】[0005]
【発明が解決しようとする課題】上述したように、従来
の前者の接合構造は、鋼管を突き合わせて周溶接してい
るので、手間がかかり作業性が悪かった。また、後者の
接合構造は、別の接合管を用意する必要があるのでコス
ト高であった。As described above, in the former joining structure of the related art, since the steel pipes are butted against each other and welded circumferentially, it is troublesome and the workability is poor. Further, the latter joint structure is expensive because it is necessary to prepare another joint pipe.
【０００６】本発明は、上記事情を考慮し、特に溶接せ
ずに剪断力の伝達が可能であり、しかもコスト低減が図
れる充填鋼管コンクリート柱の接合構造を提供すること
を目的とする。In view of the above circumstances, it is an object of the present invention to provide a joint structure for a filled steel pipe concrete column which can transmit shear force without welding and can reduce the cost.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、鋼管
の内部にコンクリートを充填してなる一対の充填鋼管コ
ンクリート柱の接合構造において、一方の充填鋼管コン
クリート柱の鋼管の内端部に他方の充填鋼管コンクリー
ト柱の端部を差し込むことで重ね継手を構成したことを
特徴とする。According to a first aspect of the present invention, in a joint structure of a pair of filled steel pipe concrete columns in which the inside of a steel pipe is filled with concrete, one of the filled steel pipe concrete columns has an inner end portion of the steel pipe. It is characterized in that a lap joint is constructed by inserting the end of the other filled steel pipe concrete column.
【０００８】請求項２の発明は、請求項１において、前
記一方の充填鋼管コンクリート柱の鋼管と他方の充填鋼
管コンクリート柱の鋼管の重なり部分の鋼管間の隙間に
充填材を充填し固化させたことを特徴とする。According to a second aspect of the present invention, in the first aspect, the filler is filled and solidified in the gap between the steel pipes of the one filled steel pipe concrete column and the steel pipes of the other filled steel pipe concrete columns that overlap each other. It is characterized by
【０００９】請求項３の発明は、請求項２において、前
記充填材がコンクリートまたはモルタルであることを特
徴とする。According to a third aspect of the present invention, in the second aspect, the filler is concrete or mortar.
【００１０】請求項４の発明は、請求項１〜３のいずれ
かにおいて、前記両充填鋼管コンクリート柱の一方の鋼
管に前記鋼管の差し込み長さを決めるストッパを設けた
ことを特徴とする。A fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, a stopper for determining an insertion length of the steel pipe is provided on one of the steel pipes of the both filled steel pipe concrete columns.
【００１１】請求項５の発明は、請求項４において、前
記両充填鋼管コンクリート柱の一方の鋼管に前記ストッ
パを設けると共に、他方の鋼管に該ストッパと係合する
ことで差し込み状態からの鋼管の抜けを防止するＬ字形
の係合溝を設けたことを特徴とする。According to a fifth aspect of the present invention, in the fourth aspect, the stopper is provided on one of the steel pipes of the both-filled steel pipe concrete columns, and the other steel pipe is engaged with the stopper to prevent the steel pipe from being inserted. It is characterized in that an L-shaped engaging groove for preventing the slip-off is provided.
【００１２】請求項６の発明は、請求項１〜３のいずれ
かにおいて、前記一方の充填鋼管コンクリート柱の鋼管
と他方の充填鋼管コンクリート柱の鋼管の重なり部分に
おいて、内周側の鋼管の外周に軸線方向に延びるリブを
周方向に間隔をおいて複数設けると共に、外周側の鋼管
に前記リブの嵌まる嵌合溝を形成したことを特徴とす
る。According to the invention of claim 6, in any one of claims 1 to 3, the outer periphery of the steel pipe on the inner peripheral side is the outer periphery of the steel pipe on the inner peripheral side in the overlapping portion of the steel pipe of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column. A plurality of ribs extending in the axial direction are provided at intervals in the circumferential direction, and a fitting groove into which the rib fits is formed in the steel pipe on the outer peripheral side.
【００１３】請求項７の発明は、請求項６において、前
記リブを嵌合溝に嵌めた状態で外周側鋼管に溶接したこ
とを特徴とする。The invention of claim 7 is characterized in that in claim 6, the rib is welded to the outer peripheral side steel pipe in a state of being fitted in the fitting groove.
【００１４】請求項８の発明は、請求項１〜７のいずれ
かにおいて、前記両充填鋼管コンクリート柱のうち一方
の鋼管が角型鋼管からなり、他方の鋼管が円形鋼管から
なることを特徴とする。The invention of claim 8 is characterized in that, in any one of claims 1 to 7, one of the two filled steel pipe concrete columns is a square steel pipe, and the other steel pipe is a circular steel pipe. To do.
【００１５】請求項９の発明は、請求項１〜８におい
て、前記両充填鋼管コンクリート柱の一方の鋼管の内周
に鉄筋挿通孔を有するリブを設けると共に、他方の鋼管
の内周に該鋼管端部より先端を突出させた鉄筋を固着
し、該鉄筋を前記一方の鋼管のリブの鉄筋挿通孔に通し
た状態で鋼管内にコンクリートを打設したことを特徴と
する。According to a ninth aspect of the present invention, in any one of the first to eighth aspects, a rib having a reinforcing bar insertion hole is provided on the inner periphery of one steel pipe of the two filled steel pipe concrete columns, and the steel pipe is formed on the inner periphery of the other steel pipe. It is characterized in that a reinforcing bar having a tip protruding from the end is fixed, and concrete is placed in the steel pipe while the reinforcing bar is passed through the reinforcing bar insertion hole of the rib of the one steel pipe.
【００１６】請求項１０の発明は、請求項２または３に
おいて、前記一方の充填鋼管コンクリート柱の鋼管と他
方の充填鋼管コンクリート柱の鋼管の重なり部分におい
て、内周側の鋼管の外周または外周側の鋼管の内周の少
なくとも一方に、充填材との係合力を増大させるための
凸部を設けたことを特徴とする。According to a tenth aspect of the present invention, in the second or third aspect, in the overlapping portion of the steel pipe of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column, the outer peripheral side or the outer peripheral side of the steel pipe on the inner peripheral side. In at least one of the inner peripheries of the steel pipe, a convex portion for increasing the engagement force with the filler is provided.
【００１７】請求項１１の発明は、請求項１０におい
て、スタッドにより前記凸部を構成したことを特徴とす
る。According to an eleventh aspect of the present invention, in the tenth aspect, the convex portion is constituted by a stud.
【００１８】請求項１２の発明は、請求項１０におい
て、短小の縦リブにより前記凸部を構成したことを特徴
とする。According to a twelfth aspect of the present invention, in the tenth aspect, the convex portion is constituted by short vertical ribs.
【００１９】請求項１３の発明は、請求項１０におい
て、周方向に連続した円周リブにより前記凸部を構成し
たことを特徴とする。According to a thirteenth aspect of the present invention, in the tenth aspect, the convex portion is constituted by a circumferential rib continuous in the circumferential direction.
【００２０】請求項１４の発明は、請求項２または３に
おいて、前記一方の充填鋼管コンクリート柱の鋼管と他
方の充填鋼管コンクリート柱の鋼管の重なり部分におい
て、内周側の鋼管または外周側の鋼管の少なくとも一方
を、充填材との係合力を増大させるため波形に成形した
ことを特徴とする。According to a fourteenth aspect of the present invention, in the second or third aspect, in the overlapping portion of the steel pipe of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column, a steel pipe on the inner peripheral side or a steel pipe on the outer peripheral side is provided. At least one of them is formed into a corrugated shape in order to increase the engaging force with the filling material.
【００２１】請求項１５の発明は、請求項１４におい
て、前記波形が、円周方向の任意の位置における軸方向
断面が同形状となるような波形であることを特徴とす
る。A fifteenth aspect of the present invention is characterized in that, in the fourteenth aspect, the corrugation is such that the axial cross section at any position in the circumferential direction has the same shape.
【００２２】請求項１６の発明は、請求項１４におい
て、前記波形が螺旋状の波形であることを特徴とする。According to a sixteenth aspect of the present invention, in the fourteenth aspect, the waveform is a spiral waveform.
【００２３】[0023]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。図１は第１実施形態の接合構造の断
面図である。この接合構造は、断面円形の鋼管２Ａ、２
Ｂの内部にコンクリート３を充填した構造の充填鋼管コ
ンクリート柱１Ａ、１Ｂを、上下方向に接合したもので
ある。この場合、上側の充填鋼管コンクリート柱１Ａの
鋼管２Ａは、下側の充填鋼管コンクリート柱１Ｂの鋼管
２Ｂより大径に設定されており、上側の充填鋼管コンク
リート柱１Ａの鋼管２Ａの下端部に、下側の充填鋼管コ
ンクリート柱１Ｂの端部が差し込まれた上で、コンクリ
ート３が鋼管２Ａ、２Ｂの内部に打設され、それにより
鋼管２Ａ、２Ｂが重ね継ぎされている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of the joining structure of the first embodiment. This joint structure is made up of steel pipes 2A, 2
The concrete filled steel tube concrete columns 1A and 1B having a structure in which the inside of B is filled with concrete 3 are joined in the vertical direction. In this case, the steel pipe 2A of the upper filled steel pipe concrete column 1A is set to have a larger diameter than the steel pipe 2B of the lower filled steel pipe concrete column 1B, and at the lower end of the steel pipe 2A of the upper filled steel pipe concrete column 1A, After the end portion of the lower filled steel pipe concrete column 1B is inserted, concrete 3 is placed inside the steel pipes 2A and 2B, whereby the steel pipes 2A and 2B are spliced together.
【００２４】接合に当たっては、予め立設した下側の充
填鋼管コンクリート柱１Ｂの上端に上側の充填鋼管コン
クリート柱１Ａの鋼管２Ａの下端を被せる形で嵌挿させ
る。その際、下側の充填鋼管コンクリート柱１Ｂの鋼管
２Ｂの外周に突設したストッパ１０に、上側の鋼管２Ａ
の下端を突き当てることで位置決めを行う。そして、鋼
管２Ａ、２Ｂ相互間に所定の差し込み長さＬを確保した
上で、鋼管２Ａ、２Ｂの内部にコンクリート３を打設す
る。同時に、上側と下側の鋼管２Ａ、２Ｂの重なり部分
の鋼管間の隙間６にも、充填材としてコンクリート（モ
ルタルでも可）３を流し込み固化させる。At the time of joining, the upper end of the lower filled steel pipe concrete pillar 1B which has been erected in advance is fitted and inserted so as to cover the lower end of the steel pipe 2A of the upper filled steel pipe concrete pillar 1A. At that time, the upper steel pipe 2A is attached to the stopper 10 protruding from the outer periphery of the steel pipe 2B of the lower filled steel pipe concrete column 1B.
Position by hitting the bottom edge of. Then, after securing a predetermined insertion length L between the steel pipes 2A and 2B, concrete 3 is placed inside the steel pipes 2A and 2B. At the same time, concrete (or mortar is also possible) 3 is poured as a filler into the gap 6 between the steel pipes of the upper and lower steel pipes 2A, 2B to solidify.
【００２５】このように構成した接合構造では、上下の
鋼管２Ａ、２Ｂ自体が相互に差し込み式になっており、
鋼管間の隙間６にコンクリート３が充填されているの
で、鋼管２Ａ、２Ｂ同士を溶接せずに、しかも別の接合
管を用いることなく、剪断力の伝達（曲げ力の伝達）が
可能な形態で重ね継ぎすることができる。従って、コス
トをかけずに容易に充填鋼管コンクリート柱１Ａ、１Ｂ
を接合し連続化することができる。In the joint structure thus constructed, the upper and lower steel pipes 2A, 2B themselves are insertable with each other,
Since concrete 3 is filled in the gap 6 between the steel pipes, it is possible to transmit shear force (transmission of bending force) without welding the steel pipes 2A and 2B to each other and without using another joint pipe. Can be spliced together. Therefore, the filled steel pipe concrete columns 1A, 1B can be easily and cost-effectively.
Can be joined and made continuous.
【００２６】なお、上下の鋼管２Ａ、２Ｂの径は逆転さ
せてもよい。即ち、大径に設定した下側の鋼管２Ｂの上
端に、小径に設定した上側の鋼管２Ａの下端を差し込む
ようにしてもよい。特に、その場合は、鋼管間の隙間６
に、後からコンクリートやモルタルを注入してもよい
し、別の充填材を注入固化させてもよい。また、前記差
し込みによるラップ寸法Ｌは、鋼管２Ａ、２Ｂの約１．
５倍程度に設定するのが望ましい。また、差し込む部分
だけ、相手側鋼管に差し込めるよう拡径あるいは縮径さ
せてもよい。また、鋼管２Ａ、２Ｂの内部に充填するコ
ンクリート３は、接合部分のみ後から現場打設するよう
にし、残る部分は工場打ち（プレキャストコンクリート
化）するようにしてもよい。The diameters of the upper and lower steel pipes 2A and 2B may be reversed. That is, the lower end of the upper steel pipe 2A set to the small diameter may be inserted into the upper end of the lower steel pipe 2B set to the large diameter. Especially, in that case, the gap 6 between the steel pipes
Secondly, concrete or mortar may be injected later, or another filler may be injected and solidified. Further, the lap size L due to the insertion is about 1. of the steel pipes 2A and 2B.
It is desirable to set it to about 5 times. Further, only the portion to be inserted may be expanded or reduced in diameter so that it can be inserted into the counterpart steel pipe. Further, the concrete 3 to be filled in the steel pipes 2A and 2B may be cast on site only at the joint portion, and the remaining portion may be cast at the factory (precast concrete).
【００２７】さらに、図２の第２実施形態に示すよう
に、一方の鋼管１Ａに、他方の鋼管２Ｂ側のストッパ１
０と係合するＬ字形の係合溝１２を設け、ストッパ１０
を係合溝１２の水平溝部１２ａに係合させれば、差し込
み状態からの鋼管２Ｂの抜けを防止することができ、鋼
管２Ａ、２Ｂ間の引張力の伝達も可能になる。この例の
場合、ストッパ１０を外周側鋼管２Ａの内周に設け、係
合溝１２を内周側鋼管２Ｂに形成しても同じ効果が得ら
れる。Further, as shown in the second embodiment of FIG. 2, the stopper 1 on one steel pipe 1A side and the other steel pipe 2B side.
An L-shaped engaging groove 12 for engaging with 0 is provided, and the stopper 10
By engaging with the horizontal groove portion 12a of the engaging groove 12, it is possible to prevent the steel pipe 2B from coming off from the inserted state, and it becomes possible to transmit the tensile force between the steel pipes 2A and 2B. In the case of this example, the same effect can be obtained by providing the stopper 10 on the inner circumference of the outer steel pipe 2A and forming the engagement groove 12 on the inner steel pipe 2B.
【００２８】図３（ａ）、（ｂ）に示す第３実施形態で
は、上側の充填鋼管コンクリート柱１Ａの鋼管２Ａと下
側の充填鋼管コンクリート柱１Ｂの鋼管２Ｂの重なり部
分において、内周側の鋼管２Ｂの外周に、軸線方向に延
びる縦リブ２１を周方向に間隔をおいて複数設けると共
に、外周側の鋼管２Ａに、縦リブ２１の嵌まる嵌合溝２
２を形成している。そして、鋼管２Ａ、２Ｂの差し込み
と同時に縦リブ２１を嵌合溝２２に嵌め、その状態で縦
リブ２１を外周側鋼管２２に溶接している。この構造で
は、鋼管２Ａ、２Ｂの倒れ防止ができ、接合部の強度向
上と共に、位置決め精度の向上が図れる。また、溶接に
より鋼管２Ａ、２Ｂ同士が接合されるので、引張力の伝
達性能が高まる。In the third embodiment shown in FIGS. 3 (a) and 3 (b), the inner peripheral side is located at the overlapping portion of the steel pipe 2A of the upper filled steel pipe concrete column 1A and the steel pipe 2B of the lower filled steel pipe concrete column 1B. A plurality of vertical ribs 21 extending in the axial direction are provided on the outer circumference of the steel pipe 2B at intervals in the circumferential direction, and a fitting groove 2 into which the vertical rib 21 is fitted is provided on the steel pipe 2A on the outer circumference side.
2 are formed. Then, the vertical ribs 21 are fitted into the fitting grooves 22 at the same time when the steel pipes 2A and 2B are inserted, and the vertical ribs 21 are welded to the outer peripheral side steel pipe 22 in this state. With this structure, the steel pipes 2A and 2B can be prevented from falling, and the strength of the joint can be improved and the positioning accuracy can be improved. Further, since the steel pipes 2A and 2B are joined by welding, the tensile force transmission performance is improved.
【００２９】図４の第４実施形態では、下側の充填鋼管
コンクリート柱１１Ｂの鋼管１２Ｂを角型鋼管で構成
し、その上端内部に、上側の充填鋼管コンクリート柱１
Ａの円形の鋼管２Ａを差し込んで、鋼管１２Ｂ、２Ａの
隙間６を含めて鋼管１２Ｂ、２Ａの内部にコンクリート
３を充填している。このように、一方の鋼管１２Ｂが角
型、他方の鋼管２Ａが円形の場合でも、鋼管１２Ｂ、２
Ａを差し込み式にしているから、容易に接合可能とな
る。In the fourth embodiment of FIG. 4, the steel pipe 12B of the lower filled steel pipe concrete column 11B is formed of a square steel pipe, and the upper filled steel pipe concrete column 1 is provided inside the upper end thereof.
A circular steel pipe 2A of A is inserted, and concrete 3 is filled inside the steel pipes 12B and 2A including the gap 6 of the steel pipes 12B and 2A. Thus, even if the one steel pipe 12B is square and the other steel pipe 2A is circular, the steel pipes 12B, 2
Since A is a plug-in type, it can be easily joined.
【００３０】図５の第５実施形態では、一方（図示例で
は下側）の充填鋼管コンクリート柱１Ｂの鋼管２Ｂの内
周に、鉄筋挿通孔１９を有するリブ１８を設けると共
に、他方（図示例では上側）の充填鋼管コンクリート柱
１Ａの鋼管１Ａの内周に該鋼管２Ａの端部より先端を突
出させた鉄筋１７をリブ１６を介して固着している。そ
して、鋼管２Ａ、２Ｂの相互差し込みに際して、鉄筋１
７を相手側鋼管２Ｂのリブ１８の鉄筋挿通孔１９に通
し、その状態で鋼管２Ａ、２Ｂ及び鋼管間の隙間６に内
にコンクリート３を打設している。この構造では、鋼管
２Ａ、２Ｂの重ね継ぎ効果に加えて、鉄筋１７と鋼管２
Ａ、２Ｂのラップ部分による重ね継手効果が期待できる
ので、接合強度が一層高くなる。In the fifth embodiment of FIG. 5, a rib 18 having a reinforcing bar insertion hole 19 is provided on the inner circumference of the steel pipe 2B of one (lower side in the illustrated example) filled steel pipe concrete column 1B, and the other (the illustrated example). Then, a reinforcing bar 17 having a tip projecting from the end of the steel pipe 2A is fixed to the inner circumference of the steel pipe 1A of the filled steel pipe concrete column 1A (upper side) via ribs 16. When the steel pipes 2A and 2B are inserted into each other, the rebar 1
7 is passed through the reinforcing bar insertion hole 19 of the rib 18 of the counterpart steel pipe 2B, and concrete 3 is placed in the gap 6 between the steel pipes 2A and 2B and the steel pipe in that state. In this structure, in addition to the lap joint effect of the steel pipes 2A and 2B,
Since the lap joint effect due to the lap portions of A and 2B can be expected, the joint strength is further increased.
【００３１】なお、以上の例において、継手強度を高め
るために、内周側の鋼管の外周または外周側の鋼管の内
周の少なくとも一方に、鋼管間の隙間に充填したコンク
リート（その充填材での同様）との係合力を増大させる
多数の凸部を設けてもよい。両方に凸部を設ける場合
は、鋼管を差し込む際に干渉しないように整列させるの
が望ましい。In the above example, in order to increase the joint strength, concrete filled in the gap between the steel pipes (at least with the filler) on at least one of the outer circumference of the inner circumference steel pipe and the inner circumference of the outer circumference steel pipe. A large number of convex portions may be provided to increase the engaging force with the same. When the convex portions are provided on both sides, it is desirable to align them so as not to interfere when inserting the steel pipe.
【００３２】凸部としては、スタッドを用いることがで
きるが、図６（ａ）、（ｂ）の第６実施形態のように、
短小の縦リブ３０を列設してもよい。また、図７（ａ）
〜（ｃ）の第７実施形態のように、丸鋼等を溶接した周
方向に連続する円周リブ３１を設けてもよい。Although a stud can be used as the convex portion, as in the sixth embodiment shown in FIGS. 6 (a) and 6 (b),
The short vertical ribs 30 may be provided in a row. In addition, FIG.
As in the seventh embodiment of (c) to (c), circumferential ribs 31 welded with round steel or the like and continuous in the circumferential direction may be provided.
【００３３】また、凸部の代わりに、図８（ａ）、
（ｂ）の第８実施形態のように、鋼管２Ａ、２Ｂの重な
り部分を波形に成形し、その波形部分４１を組み合わせ
るようにしてもよい。波形に成形する方法としては、ロ
ール成形法や水圧成形法を採用することができる。
（ａ）の場合は、上側の鋼管２Ａが大径、下側の鋼管２
Ｂが小径の場合、（ｂ）はその逆の場合である。（ａ）
の場合は、コンクリート３を鋼管２Ａ内に打設するとき
に、鋼管間の隙間６にコンクリート３を充填することが
できるが、（ｂ）の場合はそれができないので、別の充
填材（エポキシ樹脂やモルタル）７を充填している。Further, instead of the convex portion, as shown in FIG.
As in the eighth embodiment in (b), the overlapping portions of the steel pipes 2A and 2B may be formed into a corrugated shape, and the corrugated portions 41 may be combined. As a method for forming a corrugated shape, a roll forming method or a hydraulic forming method can be adopted.
In the case of (a), the upper steel pipe 2A has a large diameter, and the lower steel pipe 2A
When B has a small diameter, (b) is the opposite case. (A)
In the case of, the concrete 3 can be filled in the gap 6 between the steel pipes when the concrete 3 is poured into the steel pipe 2A, but in the case of (b), it cannot be done, so another filler (epoxy) is used. Resin or mortar) 7.
【００３４】また、波形部分４０の形状は、図９（ａ）
に示すように、円周方向の任意の位置における軸方向断
面が同形状となるような波形としたり、（ｂ）に示すよ
うに螺旋状の波形とすることができる。The shape of the corrugated portion 40 is shown in FIG.
As shown in FIG. 3, the waveform may be such that the axial cross section at any position in the circumferential direction has the same shape, or as shown in FIG.
【００３５】[0035]
【発明の効果】以上説明したように、請求項１の発明に
よれば、充填鋼管コンクリート柱を構成する鋼管自体が
相互に差し込み式になっているので、鋼管同士を溶接せ
ず、しかも別の接合管を用いなくても、剪断力の伝達、
つまり曲げ力の伝達が可能であり、コストをかけずに容
易に短工期で充填鋼管コンクリート柱を接合することが
できる。また、鋼管を差し込み式にしたので、周溶接す
る場合と違って、両充填鋼管コンクリート柱のうち一方
の鋼管を角型鋼管とし、他方の鋼管を円形鋼管とするこ
とも可能である（請求項８）。As described above, according to the first aspect of the invention, since the steel pipes constituting the filled steel pipe concrete column are mutually insertable, the steel pipes are not welded to each other, and Transmission of shearing force without using a joint pipe,
That is, the bending force can be transmitted, and the filled steel pipe concrete columns can be easily joined in a short construction period without cost. Further, since the steel pipe is a plug-in type, unlike the case of circumferential welding, it is possible to make one steel pipe of both filled steel pipe concrete columns a square steel pipe and the other steel pipe a circular steel pipe (claim. 8).
【００３６】この場合、請求項２の発明のように、一方
の充填鋼管コンクリート柱の鋼管と他方の充填鋼管コン
クリート柱の鋼管の重なり部分の鋼管間の隙間に充填材
を充填し固化させれば、接合強度をより高めることがで
きて、両柱の一体性が増す（請求項２）。請求項３の発
明のように、充填材としては、一般的にはコンクリート
またはモルタルを用いることができる。In this case, as in the invention of claim 2, if the filler is filled and solidified in the gap between the steel pipes of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column The joint strength can be further increased, and the integrity of both columns can be increased (claim 2). As in the invention of claim 3, concrete or mortar can be generally used as the filler.
【００３７】また、請求項４の発明のように、両充填鋼
管コンクリート柱の一方の鋼管に前記鋼管の差し込み長
さを決めるストッパを設ければ、位置決めが容易になる
上、所定のラップ長さを確保できるので、接合強度の管
理がたやすくできるようになる。特に、請求項５の発明
のように、他方の鋼管にストッパと係合することで差し
込み状態からの鋼管の抜けを防止するＬ字形の係合溝を
設ければ、引張力の伝達も可能になる。If a stopper for determining the insertion length of the steel pipe is provided on one of the steel pipes of the two filled steel pipe concrete columns as in the invention of claim 4, positioning is facilitated and a predetermined lap length is provided. As a result, the joint strength can be easily controlled. In particular, as in the invention of claim 5, if the other steel pipe is provided with an L-shaped engaging groove for preventing the steel pipe from coming off from the inserted state by engaging with the stopper, the tensile force can be transmitted. Become.
【００３８】また、請求項６の発明のように、前記鋼管
の重なり部分において、内周側の鋼管の外周に軸線方向
に延びるリブを周方向に間隔をおいて複数設けると共
に、外周側の鋼管に前記リブの嵌まる嵌合溝を形成すれ
ば、位置決めが容易になると共に、剪断力の伝達性能が
高まる。特に、請求項７の発明のように、リブを嵌合溝
に嵌めた状態で外周側鋼管に溶接した場合は、鋼管の一
体性が高まり、接合強度の向上が図れる。Further, as in the invention of claim 6, in the overlapping portion of the steel pipes, a plurality of ribs extending in the axial direction are provided at the outer circumference of the steel pipe on the inner peripheral side at intervals in the circumferential direction, and the steel pipe on the outer peripheral side is provided. By forming a fitting groove into which the rib fits, positioning is facilitated and shear force transmission performance is improved. In particular, when the ribs are fitted to the fitting grooves and welded to the outer peripheral side steel pipe as in the seventh aspect of the invention, the integrity of the steel pipe is increased and the joint strength can be improved.
【００３９】また、請求項９の発明のように、両充填鋼
管コンクリート柱の一方の鋼管の内周に鉄筋挿通孔を有
するリブを設けると共に、他方の鋼管の内周に該鋼管端
部より先端を突出させた鉄筋を固着し、該鉄筋を前記一
方の鋼管のリブの鉄筋挿通孔に通した状態で鋼管内にコ
ンクリートを打設すれば、鉄筋と鋼管のラップ部分によ
る継手効果が期待できるので、接合強度が一層高くな
る。Further, as in the invention of claim 9, a rib having a reinforcing bar insertion hole is provided on the inner periphery of one steel pipe of both filled steel pipe concrete columns, and the other steel pipe is provided with a tip from the steel pipe end portion on the inner periphery. By fixing the projecting rebar, and placing concrete in the steel pipe in a state where the rebar is passed through the rebar insertion hole of the rib of the one steel pipe, the joint effect of the lap portion of the rebar and the steel pipe can be expected. , The bonding strength is further increased.
【００４０】また、請求項１１の発明のように、鋼管の
重なり部分において、内周側の鋼管の外周または外周側
の鋼管の内周の少なくとも一方に凸部を設けると、充填
材との係合力が増大し、接合強度が高まる。その場合の
凸部は、スタッド（請求項１１）、短小の縦リブ（請求
項１２）、周方向に連続した円周リブ（請求項１３）が
利用できる。Further, in the invention of claim 11, in the overlapping portion of the steel pipes, when a convex portion is provided on at least one of the outer circumference of the steel pipe on the inner peripheral side or the inner circumference of the steel pipe on the outer peripheral side, the relationship with the filler is provided. The resultant force increases and the joint strength increases. In this case, a stud (claim 11), a short vertical rib (claim 12), or a circumferential rib continuous in the circumferential direction (claim 13) can be used as the convex portion.
【００４１】また、請求項１４の発明のように、鋼管の
重なり部分において、内周側の鋼管または外周側の鋼管
の少なくとも一方を波形に成形した場合も、充填材との
係合力を増大させることができる。波形の種類として
は、円周方向の任意の位置における軸方向断面が同形状
となるような波形（請求項１５）、あるいは螺旋状の波
形（請求項１６）がある。Further, even when at least one of the steel pipe on the inner peripheral side and the steel pipe on the outer peripheral side is formed into a corrugated shape at the overlapping portion of the steel pipes, the engagement force with the filler is increased. be able to. The types of corrugation include a corrugation (claim 15) or a spiral corrugation (claim 16) in which the axial cross section at any position in the circumferential direction has the same shape.
【図１】本発明の第１実施形態の縦断面図である。FIG. 1 is a longitudinal sectional view of a first embodiment of the present invention.
【図２】本発明の第２実施形態の側面図である。FIG. 2 is a side view of a second embodiment of the present invention.
【図３】（ａ）は本発明の第３実施形態の側面図、
（ｂ）は要部水平断面図である。FIG. 3 (a) is a side view of a third embodiment of the present invention,
(B) is a horizontal sectional view of a main part.
【図４】本発明の第４実施形態の要部水平断面図であ
る。FIG. 4 is a horizontal sectional view of an essential part of a fourth embodiment of the present invention.
【図５】本発明の第５実施形態の縦断面図である。FIG. 5 is a vertical sectional view of a fifth embodiment of the present invention.
【図６】（ａ）は本発明の第６実施形態の縦断面図、
（ｂ）は差し込み前の鋼管を示す側断面図である。FIG. 6A is a vertical sectional view of a sixth embodiment of the present invention,
(B) is a side sectional view showing the steel pipe before insertion.
【図７】（ａ）は本発明の第７実施形態の縦断面図、
（ｂ）はその要部拡大図、（ｃ）は差し込み前の鋼管を
示す側断面図である。FIG. 7A is a vertical cross-sectional view of a seventh embodiment of the present invention,
(B) is an enlarged view of a main part thereof, and (c) is a side sectional view showing a steel pipe before being inserted.
【図８】（ａ）は本発明の第８実施形態の縦断面図、
（ｂ）はその変形例の縦断面図である。FIG. 8A is a vertical sectional view of an eighth embodiment of the present invention,
(B) is a vertical cross-sectional view of the modified example.
【図９】（ａ）、（ｂ）は本発明の第８実施形態に用い
る鋼管の種類を示す側面図である。9 (a) and 9 (b) are side views showing types of steel pipes used in the eighth embodiment of the present invention.
【図１０】従来例の縦断面図である。FIG. 10 is a vertical sectional view of a conventional example.
１Ａ，１Ｂ，１１Ｂ 充填鋼管コンクリート柱 ２Ａ，２Ｂ，１２Ｂ 鋼管 ３ コンクリート ６ 鋼管間の隙間 ７ 充填材 １０ ストッパ １２ 係合溝 １７ 鉄筋 １８ リブ １９ 鉄筋挿通孔 ２１ 縦リブ ２２ 嵌合溝 ３０ 短小の縦リブ ３１ 円周リブ ４０ 波形部分 1A, 1B, 11B Filled steel pipe concrete columns 2A, 2B, 12B Steel pipe 3 Concrete 6 Gap between steel pipes 7 Filler material 10 Stopper 12 Engagement groove 17 Rebar 18 Rib 19 Rebar insertion hole 21 Vertical rib 22 Fitting groove 30 Small vertical Rib 31 Circular rib 40 Corrugated part
Claims (16)
る一対の充填鋼管コンクリート柱の接合構造において、
一方の充填鋼管コンクリート柱の鋼管の内端部に他方の
充填鋼管コンクリート柱の端部を差し込むことで重ね継
手を構成したことを特徴とする充填鋼管コンクリート柱
の接合構造。1. A joint structure of a pair of filled steel pipe concrete columns, wherein the inside of a steel pipe is filled with concrete,
A joint structure for a filled steel pipe concrete column, characterized in that a lap joint is constructed by inserting the end of the other filled steel pipe concrete column into the inner end of the steel pipe of one filled steel pipe concrete column.
管と他方の充填鋼管コンクリート柱の鋼管の重なり部分
の鋼管間の隙間に充填材を充填し固化させたことを特徴
とする請求項１記載の充填鋼管コンクリート柱の接合構
造。2. The filling material is filled in a gap between the steel pipes of the steel pipes of the one filled steel pipe concrete column and the steel pipes of the other filled steel pipe concrete column to solidify them. Joint structure of filled steel tube concrete columns.
ルであることを特徴とする請求項２記載の充填鋼管コン
クリート柱の接合構造。3. The joint structure for a filled steel pipe concrete column according to claim 2, wherein the filler is concrete or mortar.
鋼管に前記鋼管の差し込み長さを決めるストッパを設け
たことを特徴とする請求項１〜３のいずれかに記載の充
填鋼管コンクリート柱の接合構造。4. The joint of a filled steel pipe concrete column according to claim 1, wherein one of the steel pipes of the both filled steel pipe concrete columns is provided with a stopper for determining the insertion length of the steel pipe. Construction.
鋼管に前記ストッパを設けると共に、他方の鋼管に該ス
トッパと係合することで差し込み状態からの鋼管の抜け
を防止するＬ字形の係合溝を設けたことを特徴とする請
求項４記載の充填鋼管コンクリート柱の接合構造。5. An L-shaped engagement groove for preventing the steel pipe from coming off from the inserted state by providing the stopper on one steel pipe of the both filled steel pipe concrete columns and engaging the other steel pipe with the stopper. The joint structure for a filled steel pipe concrete column according to claim 4, further comprising:
管と他方の充填鋼管コンクリート柱の鋼管の重なり部分
において、内周側の鋼管の外周に軸線方向に延びるリブ
を周方向に間隔をおいて複数設けると共に、外周側の鋼
管に前記リブの嵌まる嵌合溝を形成したことを特徴とす
る請求項１〜３のいずれかに記載の充填鋼管コンクリー
ト柱の接合構造。6. A plurality of ribs extending in the axial direction are circumferentially spaced from each other on the outer circumference of the steel pipe on the inner peripheral side in the overlapping portion of the steel pipe of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column. The joint structure for a filled steel pipe concrete column according to any one of claims 1 to 3, wherein a fitting groove into which the rib is fitted is formed in the steel pipe on the outer peripheral side while being provided.
鋼管に溶接したことを特徴とする請求項６記載の充填鋼
管コンクリート柱の接合構造。7. The joint structure for a filled steel pipe concrete column according to claim 6, wherein the ribs are welded to the outer peripheral side steel pipe in a state of being fitted in the fitting groove.
方の鋼管が角型鋼管からなり、他方の鋼管が円形鋼管か
らなることを特徴とする請求項１〜７のいずれかに記載
の充填鋼管コンクリート柱の接合構造。8. The filled steel pipe concrete according to claim 1, wherein one of the filled steel pipe concrete columns is a square steel pipe and the other steel pipe is a circular steel pipe. Joint structure of pillars.
鋼管の内周に鉄筋挿通孔を有するリブを設けると共に、
他方の鋼管の内周に該鋼管端部より先端を突出させた鉄
筋を固着し、該鉄筋を前記一方の鋼管のリブの鉄筋挿通
孔に通した状態で鋼管内にコンクリートを打設したこと
を特徴とする請求項１〜８のいずれかに記載の充填鋼管
コンクリート柱の接合構造。9. A rib having a reinforcing bar insertion hole is provided on the inner circumference of one of the steel pipes of the both filled steel pipe concrete columns,
Reinforcing rods with the tip protruding from the steel pipe end portion are fixed to the inner circumference of the other steel pipe, and concrete is placed in the steel pipe in a state where the reinforcing rods are passed through the reinforcing rod insertion holes of the ribs of the one steel pipe. A joint structure for a filled steel pipe concrete column according to any one of claims 1 to 8.
鋼管と他方の充填鋼管コンクリート柱の鋼管の重なり部
分において、内周側の鋼管の外周または外周側の鋼管の
内周の少なくとも一方に、充填材との係合力を増大させ
るための凸部を設けたことを特徴とする請求項２または
３記載の充填鋼管コンクリート柱の接合構造。10. A filler is provided on at least one of the outer circumference of the steel pipe on the inner peripheral side or the inner circumference of the steel pipe on the outer peripheral side in the overlapping portion of the steel pipes of the one filled steel pipe concrete column and the steel pipes of the other filled steel pipe concrete column. The joint structure for a filled steel pipe concrete column according to claim 2 or 3, wherein a convex portion is provided to increase an engaging force with the.
とを特徴とする請求項１０記載の充填鋼管コンクリート
柱の接合構造。11. The joint structure for a filled steel pipe concrete column according to claim 10, wherein the convex portion is constituted by a stud.
たことを特徴とする請求項１０記載の充填鋼管コンクリ
ート柱の接合構造。12. The joint structure for a filled steel pipe concrete column according to claim 10, wherein the convex portion is constituted by short and small vertical ribs.
凸部を構成したことを特徴とする請求項１０記載の充填
鋼管コンクリート柱の接合構造。13. The joint structure for a filled steel pipe concrete column according to claim 10, wherein the convex portion is constituted by a circumferential rib continuous in the circumferential direction.
鋼管と他方の充填鋼管コンクリート柱の鋼管の重なり部
分において、内周側の鋼管または外周側の鋼管の少なく
とも一方を、充填材との係合力を増大させるため波形に
成形したことを特徴とする請求項２または３記載の充填
鋼管コンクリート柱の接合構造。14. In an overlapping portion of the steel pipe of the one filled steel pipe concrete column and the steel pipe of the other filled steel pipe concrete column, at least one of an inner peripheral side steel pipe and an outer peripheral side steel pipe is provided with an engaging force with a filler. The joint structure for a filled steel pipe concrete column according to claim 2 or 3, wherein the joint structure is formed in a corrugated shape in order to increase the number.
おける軸方向断面が同形状となるような波形であること
を特徴とする請求項１４記載の充填鋼管コンクリート柱
の接合構造。15. The joint structure for a filled steel pipe concrete column according to claim 14, wherein the corrugation is such that the axial cross section at any position in the circumferential direction has the same shape.
を特徴とする請求項１４記載の充填鋼管コンクリート柱
の接合構造。16. The joint structure for a filled steel pipe concrete column according to claim 14, wherein the corrugation is a spiral corrugation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14053796A JP3567400B2 (en) | 1996-06-03 | 1996-06-03 | Joint structure of filled steel tube concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14053796A JP3567400B2 (en) | 1996-06-03 | 1996-06-03 | Joint structure of filled steel tube concrete column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09317008A true JPH09317008A (en) | 1997-12-09 |
| JP3567400B2 JP3567400B2 (en) | 2004-09-22 |
Family
ID=15270985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14053796A Expired - Fee Related JP3567400B2 (en) | 1996-06-03 | 1996-06-03 | Joint structure of filled steel tube concrete column |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3567400B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027299A (en) * | 1998-07-08 | 2000-01-25 | Koichi Minami | Column structure |
| JP2000282578A (en) * | 1999-01-27 | 2000-10-10 | Maeda Corp | Structure of column |
| JP2002332611A (en) * | 2001-05-10 | 2002-11-22 | Nkk Corp | Joint structure of tensile member of steel pipe concrete composite pier |
| JP2007039952A (en) * | 2005-08-02 | 2007-02-15 | Shimizu Corp | Steel pipe column and steel pipe column joining method |
| JP2010174444A (en) * | 2009-01-27 | 2010-08-12 | Shimizu Corp | Method and structure for joining vertical members, and supporting implement |
| JP2012132527A (en) * | 2010-12-22 | 2012-07-12 | Nippon Hume Corp | Method of forming steel pipe connection part |
| RU2473750C1 (en) * | 2011-08-10 | 2013-01-27 | Закрытое акционерное общество "ЭРКОН" | Joint of composite tube confined concrete rods |
| KR101281320B1 (en) * | 2011-09-29 | 2013-07-03 | 재단법인 포항산업과학연구원 | Connectable multi-layer tube and method for connecting the same |
| JP2016020594A (en) * | 2014-07-15 | 2016-02-04 | 鹿島建設株式会社 | Concrete filled steel pipe structure |
| CN105317167A (en) * | 2015-11-19 | 2016-02-10 | 山东大学 | Threaded-connection square steel pipe column and construction method |
| KR101630992B1 (en) * | 2014-12-24 | 2016-06-16 | 주식회사 포스코 | Concrete filled steel tube column structure |
| CN105804322A (en) * | 2016-03-31 | 2016-07-27 | 初明进 | Liner-shaped steel member |
| CN110468681A (en) * | 2019-08-21 | 2019-11-19 | 无锡市锡山三建实业有限公司 | A kind of unit construction bridge girder construction and construction method |
-
1996
- 1996-06-03 JP JP14053796A patent/JP3567400B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027299A (en) * | 1998-07-08 | 2000-01-25 | Koichi Minami | Column structure |
| JP2000282578A (en) * | 1999-01-27 | 2000-10-10 | Maeda Corp | Structure of column |
| JP2002332611A (en) * | 2001-05-10 | 2002-11-22 | Nkk Corp | Joint structure of tensile member of steel pipe concrete composite pier |
| JP2007039952A (en) * | 2005-08-02 | 2007-02-15 | Shimizu Corp | Steel pipe column and steel pipe column joining method |
| JP2010174444A (en) * | 2009-01-27 | 2010-08-12 | Shimizu Corp | Method and structure for joining vertical members, and supporting implement |
| JP2012132527A (en) * | 2010-12-22 | 2012-07-12 | Nippon Hume Corp | Method of forming steel pipe connection part |
| RU2473750C1 (en) * | 2011-08-10 | 2013-01-27 | Закрытое акционерное общество "ЭРКОН" | Joint of composite tube confined concrete rods |
| KR101281320B1 (en) * | 2011-09-29 | 2013-07-03 | 재단법인 포항산업과학연구원 | Connectable multi-layer tube and method for connecting the same |
| JP2016020594A (en) * | 2014-07-15 | 2016-02-04 | 鹿島建設株式会社 | Concrete filled steel pipe structure |
| KR101630992B1 (en) * | 2014-12-24 | 2016-06-16 | 주식회사 포스코 | Concrete filled steel tube column structure |
| CN105317167A (en) * | 2015-11-19 | 2016-02-10 | 山东大学 | Threaded-connection square steel pipe column and construction method |
| CN105804322A (en) * | 2016-03-31 | 2016-07-27 | 初明进 | Liner-shaped steel member |
| CN110468681A (en) * | 2019-08-21 | 2019-11-19 | 无锡市锡山三建实业有限公司 | A kind of unit construction bridge girder construction and construction method |
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|---|---|
| JP3567400B2 (en) | 2004-09-22 |
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