JP2000204674A - Column-beam joining part of column of steel pipe structure or filled steel pipe concrete structure and beam of src structure - Google Patents
Column-beam joining part of column of steel pipe structure or filled steel pipe concrete structure and beam of src structureInfo
- Publication number
- JP2000204674A JP2000204674A JP11007472A JP747299A JP2000204674A JP 2000204674 A JP2000204674 A JP 2000204674A JP 11007472 A JP11007472 A JP 11007472A JP 747299 A JP747299 A JP 747299A JP 2000204674 A JP2000204674 A JP 2000204674A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- column
- fixing
- diaphragms
- joint
- 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.)
- Withdrawn
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、特に鋼管構造の
柱または鋼管内にコンクリートを充填して形成される充
填型鋼管コンクリート構造(以下「CFT構造」とい
う)の柱とH形鋼などの形鋼をはり鉄骨とするSRC構
造のはりとの接合に代表される柱・梁接合部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to a column of a steel pipe structure or a column of a filled steel pipe concrete structure (hereinafter referred to as "CFT structure") formed by filling concrete into a steel pipe and an H-shaped steel or the like. The present invention relates to a column / beam joint typified by joining with a beam having an SRC structure using steel as a steel beam.
【0002】[0002]
【従来の技術】例えば図4(a),(b)はともに、C
FT構造の柱20とH形鋼をはり鉄骨とするSRC構造
のはり21との柱・はり接合部を示し、柱20の鋼管2
2とはり21のはり鉄骨23は高力ボルト接合などによ
って直接接合されている。2. Description of the Related Art For example, FIGS.
The column-to-beam joint between the column 20 having the FT structure and the beam 21 having the SRC structure having an H-shaped steel beam is shown.
The beam steel frame 23 of the beam 21 is directly joined to the beam 21 by a high-strength bolt joint or the like.
【0003】また、はり主筋24の端部は図4(a)に
図示するように鋼管22内に挿入し、鋼管22内で上方
または下方に折り曲げられた後、鋼管22内のコンクリ
ート25内に埋設する等して定着されている。[0003] The end of the main beam 24 is inserted into a steel pipe 22 as shown in FIG. 4 (a) and bent upward or downward in the steel pipe 22, and then into concrete 25 in the steel pipe 22. It is established by burying it.
【0004】また実際には、はり主筋24の定着部の加
工が困難なことから、例えば図4(b)に図示するよう
に、はり主筋24の端部をはり21の端部で止め、はり
鉄骨23のみを鋼管22に接合している。In practice, it is difficult to process the fixing portion of the main beam 24. Therefore, as shown in FIG. 4B, for example, the end of the main beam 24 is stopped at the end of the beam 21, and Only the steel frame 23 is joined to the steel pipe 22.
【0005】なお、はり主筋24の端部を鋼管22に直
接溶接して定着することも考えられるが、現場溶接を強
いられる等の理由から施工上や強度上の問題もあり、今
のところ、はり主筋24の端部は鋼管22には定着され
ておらず、はり主筋24の応力を鋼管22に直接伝えら
れるようにはなっていない。It is conceivable that the end of the beam main reinforcement 24 is welded directly to the steel pipe 22 to be fixed, but there are also problems in construction and strength due to reasons such as forced welding on site. The end of the beam main reinforcement 24 is not fixed to the steel pipe 22, and the stress of the beam main reinforcement 24 is not directly transmitted to the steel pipe 22.
【0006】[0006]
【発明が解決しようとする課題】このため、はり主筋2
4の耐力をも有効に利用した経済的かつ合理的設計とは
いえず、はり21の鉄骨量を低減できない等の課題があ
った。For this reason, beam main reinforcement 2
4 cannot be said to be an economical and rational design that effectively utilizes the proof stress, and there is a problem that the amount of steel frame of the beam 21 cannot be reduced.
【0007】また、現場施工の省力化を考えてはりをプ
レキャスト構造としても、はり主筋24の端部を簡単に
定着できない等の課題もあった。この発明は、以上の課
題を解決するためになされたもので、特にはりと柱間の
応力(曲げモーメントおよびせん断力)伝達を鉄骨部分
のみならず、RC部分についても確実になされるように
して接合部の応力解析を明確にし、接合部の設計を合理
的かつ経済的に行えるようにした鋼管構造またはCFT
構造の柱とSRC構造のはりとの柱・はり接合部を提供
することを目的とする。[0007] In addition, even if the beam is made into a precast structure in consideration of labor saving at the site, there is another problem that the end of the beam main reinforcement 24 cannot be easily fixed. The present invention has been made in order to solve the above-mentioned problems. In particular, transmission of stress (bending moment and shear force) between a beam and a column is ensured not only for a steel frame portion but also for an RC portion. A steel pipe structure or CFT that clarifies the joint stress analysis and makes the joint design rational and economical
It is an object of the present invention to provide a column-beam joint between a structural column and a beam having an SRC structure.
【0008】[0008]
【課題を解決するための手段】以上の課題を解決するた
めに、この発明に係る請求項1記載の柱・はり接合部
は、鋼管構造または充填型鋼管コンクリート構造の柱と
SRC構造のはりとの柱・はり接合部において、柱を形
成する鋼管にダイヤフラムを突設し、このダイヤフラム
にはりを形成するはり主筋の端部をはり主筋定着金物を
介して定着する。In order to solve the above-mentioned problems, according to the first aspect of the present invention, there is provided a column-to-beam joint, comprising a steel pipe structure or a filled steel pipe concrete structure, and an SRC structure beam. At the column / beam joint, a diaphragm is protruded from a steel pipe forming the column, and the end of the beam main bar forming the beam is fixed to the diaphragm via the beam main bar fixing metal.
【0009】また、請求項2記載の柱・梁接合部は、請
求項1において、はり主筋定着金物はダイヤフラムに固
定される固定部と、固定部の先端部に突設され、はり主
筋の端部が定着される定着部と、固定部と定着部とから
なるコーナ部に所定間隔に突設された複数の補強部とを
有して形成する。According to a second aspect of the present invention, there is provided a column / beam joint according to the first aspect, wherein the beam main bar fixing metal is fixed to the diaphragm, and is protruded from a distal end portion of the fixed portion. The fixing portion has a fixing portion, and a plurality of reinforcing portions projecting at predetermined intervals in a corner portion formed by the fixing portion and the fixing portion.
【0010】[0010]
【発明の実施の形態】図1〜図3は、この発明の実施の
一形態を示し、図において、柱1のはり接合部にはり2
が接合されている。柱1はCFT構造で、はり2はSR
C構造でそれぞれ形成されている。1 to 3 show one embodiment of the present invention. In the drawings, a beam 2 is attached to a beam joint of a column 1.
Are joined. Pillar 1 has CFT structure and beam 2 has SR
Each is formed in a C structure.
【0011】特に、柱1は角形鋼管または円形鋼管など
の鋼管3内にコンクリート4を充填して形成され、その
際コンクリート4は鋼管3の全長または、はり2の接合
部分にのみ充填されている。さらに、はり2の接合部分
にこの部分を補強し、かつはり2を接合するためのダイ
ヤフラム5とウェブプレート6がそれぞれ突設されてい
る。In particular, the column 1 is formed by filling concrete 4 in a steel pipe 3 such as a square steel pipe or a circular steel pipe, and the concrete 4 is filled only in the entire length of the steel pipe 3 or only at the joint of the beam 2. . Further, a diaphragm 5 and a web plate 6 are provided at a joint portion of the beam 2 to reinforce this portion and to join the beam 2, respectively.
【0012】ダイヤフラム5は鋼管3の、後述するはり
鉄骨7の上下フランジ7aと対応する部分を水平に貫通
してそれぞれ突設され、またウェブプレート6は鋼管3
の、上下ダイヤフラム5,5間に垂直に突設されてい
る。なお、上下ダイヤフラム5とウェブプレート6は鋼
管3に溶接によって一体的に固着されている。The diaphragm 5 projects horizontally through portions of the steel pipe 3 that correspond to upper and lower flanges 7a of a beam steel 7 to be described later.
Are vertically projected between the upper and lower diaphragms 5 and 5. The upper and lower diaphragms 5 and the web plate 6 are integrally fixed to the steel pipe 3 by welding.
【0013】はり2はH形鋼からなるはり鉄骨7の上側
と下側にその材軸方向に沿って複数のはり主筋8を配筋
し、その周囲にせん断補強筋9を所定間隔に複数巻き付
け、かつはり鉄骨7、はり主筋8及びせん断補強筋9の
周囲にコンクリート4を充填して断面略矩形状に形成さ
れている。The beam 2 has a plurality of beam reinforcing bars 8 arranged along the axial direction of the beam on the upper and lower sides of a beam steel member 7 made of H-section steel, and a plurality of shear reinforcing bars 9 are wound therearound at predetermined intervals. The concrete beam 4 is filled around the beam beam 7, the beam main bar 8, and the shear reinforcing bar 9 to form a substantially rectangular section.
【0014】また、はり鉄骨7の上下フランジ7aの端
部が上下ダイヤフラム5の端部に溶接によってそれぞれ
接合され、ウェブ7bの端部がウェブプレート6に接合
プレート10aと複数の接合ボルト10bによって接合
され、さらにはり主筋8の端部がはり主筋定着金物(以
下「定着金物」という)11を介して上下ダイアフラム
5にそれぞれ接合されている。Also, the ends of the upper and lower flanges 7a of the beam steel frame 7 are respectively joined to the ends of the upper and lower diaphragms 5 by welding, and the ends of the webs 7b are joined to the web plate 6 by the joining plate 10a and the plurality of joining bolts 10b. Further, the ends of the beam main bar 8 are joined to the upper and lower diaphragms 5 via beam main bar fixing hardware (hereinafter referred to as “fixing hardware”) 11, respectively.
【0015】また、こうして形成された柱1とはり2と
の接合部にすべての部材が埋まるようにコンクリート4
が充填されている。こうして、柱1のはり接合部にはり
2の端部が接合されている。The concrete 4 is so formed that all the members are buried in the joint between the column 1 and the beam 2 thus formed.
Is filled. Thus, the end of the beam 2 is joined to the beam joint of the column 1.
【0016】なお、はり2がプレキャストコンクリート
部材として工場生産される場合、はり鉄骨7の上下フラ
ンジ7aとウェブ7b、さらにはり主筋8の端部は柱1
との継手部としてコンクリート面からそれそれ所定長さ
突出されている。When the beam 2 is factory-produced as a precast concrete member, the upper and lower flanges 7a and the web 7b of the beam steel frame 7 and the end of the beam main bar 8 are connected to the column 1
Each of the joints projects from the concrete surface by a predetermined length.
【0017】定着金物11は、図3(a),(b)に図
示するように固定部11aの先端部に定着部11bを垂
直に突設し、かつ固定部11aと定着部11bからなる
コーナ部に複数の補強部11cを所定間隔に突設し、さ
らに固定部11aと定着部11bに複数の取付孔11d
と定着孔11eをそれぞれ所定間隔に設けることにより
形成されている。As shown in FIGS. 3 (a) and 3 (b), the fixing metal 11 has a fixing part 11b vertically protruding from the tip of the fixing part 11a, and has a corner formed by the fixing part 11a and the fixing part 11b. A plurality of reinforcing portions 11c are protruded at predetermined intervals in the portion, and a plurality of mounting holes 11d are formed in the fixing portion 11a and the fixing portion 11b.
And fixing holes 11e are provided at predetermined intervals.
【0018】固定部11aと定着部11bはともに、は
り2の軸直角方向に細長い矩形板状に、補強部11cは
三角形板状(四角形板状でもよい)にそれぞれ形成され
ている。また、取付孔11dと定着孔11eは補強部1
1c,11c間に形成されている。Both the fixing portion 11a and the fixing portion 11b are formed in a rectangular plate shape elongated in the direction perpendicular to the axis of the beam 2, and the reinforcing portion 11c is formed in a triangular plate shape (or a rectangular plate shape). Further, the mounting hole 11d and the fixing hole 11e are
It is formed between 1c and 11c.
【0019】なお、定着金物11は矩形板状と三角形板
状(四角形板状でもよい)にそれぞれ形成された複数の
プレートを溶接するか、あるいは固定部11a、定着部
11bおよび補強部11cを鋳造によって一体成形する
か等の方法によって形成されている。The fixing metal 11 is formed by welding a plurality of plates formed in a rectangular plate shape and a triangular plate shape (or a rectangular plate shape), or by casting the fixing portion 11a, the fixing portion 11b, and the reinforcing portion 11c. Or by integral molding.
【0020】こうして形成された定着金物11は、上ダ
イアフラム5の上側と下ダイアフラム5の下側に固定部
11aのボルト孔11dとこのボルト孔11dに対応し
てダイアフラム5に形成されたボルト孔5aを貫通する
複数の取付ボルト12でボルト止めすることによりそれ
ぞれ取り付けられている。The fixing hardware 11 thus formed is provided with bolt holes 11d of the fixing portion 11a above the upper diaphragm 5 and below the lower diaphragm 5, and bolt holes 5a formed in the diaphragm 5 corresponding to the bolt holes 11d. Are mounted by bolting with a plurality of mounting bolts 12 penetrating through.
【0021】そして、はり主筋8の端部は定着部11b
の定着孔11eを貫通し、かつその先端部に複数の定着
ナット13を螺合することにより定着金物11に連結さ
れている。その際、定着ナット13は定着部11bを裏
と表から強く挟みつけるように螺合されている。こうし
て、はり主筋8の端部が定着金物11を介して柱1に定
着されている。The end of the main beam 8 is fixed to the fixing portion 11b.
The fixing hole 11e is connected to the fixing hardware 11 by screwing a plurality of fixing nuts 13 to the tip of the fixing hole 11e. At this time, the fixing nut 13 is screwed so as to strongly clamp the fixing portion 11b from the back and the front. Thus, the end of the main beam 8 is fixed to the column 1 via the fixing hardware 11.
【0022】このようにして柱1とはり2とが接合され
ていることにより、特にはり2から柱1への応力伝達は
鉄骨部分のみならずRC部分ついても確実になされ、従
来の柱・はり接合部に比較してはり主筋を有効に働かせ
ることができる。Since the column 1 and the beam 2 are joined in this manner, stress transmission from the beam 2 to the column 1 is ensured not only for the steel frame portion but also for the RC portion. The beam main rebar can work more effectively than the joint.
【0023】特に図3(b)に図示する定着金物によれ
ば、定着部11bのはり側にコンクリート拘束プレート
11fが定着部11bの周縁に沿って突設されているの
で、はり2端部の拘束力がきわめて大きく、柱1とはり
2間の応力伝達を確実なものとすることができる。In particular, according to the fixing hardware shown in FIG. 3B, the concrete restraining plate 11f is provided on the beam side of the fixing portion 11b so as to protrude along the peripheral edge of the fixing portion 11b. The binding force is extremely large, and the transmission of stress between the column 1 and the beam 2 can be ensured.
【0024】なお、定着金物11を取り付ける際に固定
部11aの取付孔11dを長孔またはルーズ孔とするこ
とにより定着金物11の取付位置を自由に調整すること
が可能になる。When the fixing metal 11 is mounted, the mounting position of the fixing metal 11 can be freely adjusted by making the mounting hole 11d of the fixing portion 11a a long hole or a loose hole.
【0025】また、ダイヤフラム5と定着金具11との
間にフィラーを介在したり、あるいは定着孔11eを長
孔にしたりすることにより、はり主筋8のレベルに自由
に対処することが可能になる。Further, by interposing a filler between the diaphragm 5 and the fixing fitting 11 or making the fixing hole 11e a long hole, the level of the main beam 8 can be freely dealt with.
【0026】[0026]
【発明の効果】この発明は以上説明した構成からなり、
特にはり主筋の端部も定着金具を介して柱の鉄骨に定着
されているので、はりから柱への応力伝達は鉄骨部分の
みならずRC部分についても明確になされる。The present invention has the above-described structure,
In particular, since the end of the main beam is also fixed to the steel frame of the column via the fixing metal, the transmission of stress from the beam to the column is made clear not only for the steel frame portion but also for the RC portion.
【0027】このため、柱とはりの鉄骨部分のみを接合
する従来の柱・はり接合部に比べてはり主筋も有効に働
かせることができるため、きわめて経済的かつ合理的設
計が可能である。[0027] For this reason, the main beam reinforcement can also work more effectively than the conventional column / beam joint where only the steel part of the column and the beam is joined, so that a very economical and rational design is possible.
【0028】また、SRC構造のはりを鋼管構造やCF
T構造の柱に従来の鉄骨構造と同様に接合できるように
なり、現場施工の大幅な省力化が図れる等の効果が有
る。さらに、はり主筋定着金物はダイヤフラムに固定さ
れる固定部と固定部の先端部に突設され、はり主筋の端
部が定着される定着部と、固定部と定着部とからなるコ
ーナ部に所定間隔に突設された複数の補強部とを有し、
簡単な形状に形状に形成されているので、製造しやすく
量産によるコスト低減が可能である。Further, the beam having the SRC structure is connected to a steel pipe structure or CF.
It becomes possible to join to a column of T structure in the same manner as a conventional steel frame structure, and there is an effect that a large labor saving of on-site construction can be achieved. Furthermore, the beam main bar fixing hardware is provided at a fixed portion fixed to the diaphragm and at a tip end of the fixed portion, and is fixed to a fixing portion where the end portion of the beam main bar is fixed, and a corner portion including the fixed portion and the fixing portion. Having a plurality of reinforcing portions projecting at intervals,
Since it is formed in a simple shape, it is easy to manufacture and cost reduction by mass production is possible.
【図1】CFT構造の柱とSRC構造のはりとの接合部
を示し、(a)はその横断面図、(b)は縦断面図であ
る。1A and 1B show a joint portion between a column having a CFT structure and a beam having an SRC structure, wherein FIG. 1A is a cross-sectional view thereof, and FIG.
【図2】(a)は図1(b)におけるA−A線断面図、
(b)は図1(b)におけるB−B線断面図である。FIG. 2A is a sectional view taken along line AA in FIG. 1B;
FIG. 2B is a sectional view taken along line BB in FIG.
【図3】(a),(b)は定着金物の一例を示す斜視図
である。FIGS. 3A and 3B are perspective views showing an example of a fixing hardware.
【図4】(a),(b)はCFT構造の柱とSRC構造
のはりとの接合部の従来例の一例を示す縦断面図であ
る。FIGS. 4A and 4B are longitudinal sectional views showing an example of a conventional example of a joint portion between a column having a CFT structure and a beam having an SRC structure.
1 柱 2 はり 3 鋼管 4 コンクリート 5 ダイヤフラム 6 ウェブプレート 7 はり鉄骨 7a 上下フランジ 7b ウェブ 8 はり主筋 9 せん断補強筋 10a 接合プレート 10b 接合ボルト 11 定着金物(はり主筋定着金物) 12 取付ボルト 13 定着ナット DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3 Steel pipe 4 Concrete 5 Diaphragm 6 Web plate 7 Beam steel 7a Upper and lower flanges 7b Web 8 Beam main reinforcement 9 Shear reinforcement 10a Joint plate 10b Joint bolt 11 Fixing metal (fixing metal for main beam) 12 Mounting bolt 13 Fixing nut
Claims (2)
構造の柱とSRC構造のはりとの柱・はり接合部におい
て、柱を形成する鋼管にダイヤフラムを突設し、このダ
イヤフラムにはりを形成するはり主筋の端部をはり主筋
定着金物を介して定着してあることを特徴とする鋼管構
造または充填型鋼管コンクリート構造の柱とSRC構造
のはりとの柱・梁接合部。At a column / beam joint between a steel pipe structure or a column of a filled type steel pipe concrete structure and a beam of an SRC structure, a diaphragm is protruded from a steel pipe forming the column, and a beam main bar forming a beam on the diaphragm. A beam / column joint of a steel pipe structure or a filled steel pipe concrete structure column and an SRC structure beam, wherein an end of the beam is fixed via a beam fixing hardware.
定される固定部と、固定部の先端部に突設され、はり主
筋の端部が定着される定着部と、固定部と定着部とから
なるコーナ部に所定間隔に突設された複数の補強部とを
有することを特徴とする請求項1記載の鋼管構造または
充填型鋼管コンクリート構造の柱とSRC構造のはりと
の柱・はり接合部。2. The beam main bar fixing hardware includes a fixing portion fixed to the diaphragm, a fixing portion protruding from a distal end of the fixing portion, and fixing an end of the beam main bar, and a fixing portion and a fixing portion. 2. A column / beam joint section between a steel pipe structure or a filled steel pipe concrete structure column and an SRC structure beam according to claim 1, further comprising a plurality of reinforcing portions projecting at predetermined intervals at the corner portion. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11007472A JP2000204674A (en) | 1999-01-14 | 1999-01-14 | Column-beam joining part of column of steel pipe structure or filled steel pipe concrete structure and beam of src structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11007472A JP2000204674A (en) | 1999-01-14 | 1999-01-14 | Column-beam joining part of column of steel pipe structure or filled steel pipe concrete structure and beam of src structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000204674A true JP2000204674A (en) | 2000-07-25 |
Family
ID=11666742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11007472A Withdrawn JP2000204674A (en) | 1999-01-14 | 1999-01-14 | Column-beam joining part of column of steel pipe structure or filled steel pipe concrete structure and beam of src structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000204674A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010097524A (en) * | 2000-04-24 | 2001-11-08 | 배종렬 | Hybrid precast concrete structure and the method of the same |
-
1999
- 1999-01-14 JP JP11007472A patent/JP2000204674A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010097524A (en) * | 2000-04-24 | 2001-11-08 | 배종렬 | Hybrid precast concrete structure and the method of the same |
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