JP2001355288A - Steel pipe column with diaphragm - Google Patents
Steel pipe column with diaphragmInfo
- Publication number
- JP2001355288A JP2001355288A JP2000179466A JP2000179466A JP2001355288A JP 2001355288 A JP2001355288 A JP 2001355288A JP 2000179466 A JP2000179466 A JP 2000179466A JP 2000179466 A JP2000179466 A JP 2000179466A JP 2001355288 A JP2001355288 A JP 2001355288A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- diaphragm
- pipe column
- circular steel
- column
- 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.)
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- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、Ｈ形鋼等の梁が接
合されるダイアフラム付き鋼管柱および試験片に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel tube column with a diaphragm and a test piece to which a beam such as an H-beam is joined.
【０００２】[0002]
【従来の技術】一般に、円形鋼管柱においては、これに
取り付けられるＨ形鋼からなる梁の応力を柱に伝達する
ために、図６に示すように、梁２のフランジ２ａ，２ａ
が接合される位置にダイアフラム３，３（４，４）が溶
接により固着されている。ここで、図６（ａ）のダイア
フラム３，３は、円形鋼管柱１の外面側および内面側の
両方に突出しているもので通しダイアフラム形式と呼ば
れ、一方同図（ｂ）のダイアフラム４，４は、円形鋼管
柱１の外面側にのみ突出しているもので外ダイアフラム
形式と呼ばれる。このダイアフラムを用いる工法は力学
的には明快な構造であるので、仕口に十分な耐力と剛性
を与えるように設計することは可能であるが、例えば、
ダイアフラム３を円形鋼管柱１に溶接により取り付けて
ダイアフラム付き円形鋼管柱を製造する場合、円形鋼管
の切断、開先加工、溶接、超音波検査などの作業工数が
発生し経済性の面で問題がある。2. Description of the Related Art In general, in a circular steel pipe column, as shown in FIG. 6, flanges 2a, 2a of a beam 2 are used to transmit the stress of a beam made of H-beam to the column.
The diaphragms 3, 3 (4, 4) are fixed by welding at the positions where they are joined. Here, the diaphragms 3 and 3 in FIG. 6 (a) project from both the outer surface side and the inner surface side of the circular steel pipe column 1 and are called through-diaphragm types, while the diaphragms 4 and 3 in FIG. Numeral 4 protrudes only on the outer surface side of the circular steel pipe column 1 and is called an outer diaphragm type. Since the construction method using this diaphragm is a mechanically clear structure, it is possible to design it to give sufficient strength and rigidity to the connection.
When the diaphragm 3 is attached to the circular steel pipe column 1 by welding to manufacture a circular steel pipe column with a diaphragm, work steps such as cutting, beveling, welding, and ultrasonic inspection of the circular steel pipe occur, and there is a problem in terms of economy. is there.
【０００３】これを解決すべく、特開平８−１２０７７
５号公報では、図７に示すように、円形鋼管の一定領域
が塑性変形可能な温度に加熱された後に鋼管端部から圧
縮力が加えられて圧縮、増肉され、その後冷却されて固
化されることにより形成された仕口増厚部６を有する円
形鋼管柱１Ａが提案されている。この仕口増厚部６は、
梁２の上下フランジ２ａ，２ａ間の仕口パネル部全体に
渡って形成されている。In order to solve this problem, Japanese Patent Laid-Open Publication No.
In Japanese Patent Publication No. 5 (1993), as shown in FIG. 7, after a certain area of a circular steel pipe is heated to a temperature at which plastic deformation is possible, a compressive force is applied from the end of the steel pipe to compress and thicken, and then cooled and solidified. There has been proposed a circular steel pipe column 1A having a connection thickened portion 6 formed by this. This connection thickening section 6
The beam 2 is formed over the entirety of the connection panel between the upper and lower flanges 2a, 2a.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、この円
形鋼管柱１Ａは、仕口パネル部全体を増厚させるので、
増厚される幅が長いため加工が大変であるとともに、厳
しい熱履歴を受ける部分が長くなるため一定の品質を維
持するのが大変であるという問題がある。However, since the circular steel tubular column 1A increases the thickness of the entire connecting panel portion,
There is a problem that processing is difficult because the width to be increased is long, and it is difficult to maintain a constant quality because the part that receives severe thermal history becomes long.
【０００５】また、この円形鋼管柱１Ａは、柱部のみな
らず仕口増厚部６もまた円形の横断面形状になるので、
梁２を取り付けるときに、梁２のフランジ２ａに仕口増
厚部６の曲率に合致させた円弧状の切断加工を施す必要
が生じる。その結果、現場での鉄骨建て方時に梁２を２
本の円形鋼管柱１Ａ，１Ａの間に設置する場合、クレー
ンでつり上げた梁２を横側から円形鋼管柱１Ａ，１Ａ間
に挿入することができず、上側から所定の位置へ落とし
込む必要が生じるので、作業性が著しく悪いという問題
がある。さらに、梁２のフランジ２ａを円形鋼管柱１の
仕口増厚部６に取り付ける場合、フランジ２ａを円弧状
に溶接する必要があるので、溶接部の開先や裏当金も円
弧状に加工する必要が生じるとともに、溶接作業自体も
技術的に難易度が高いので一般には忌避される。[0005] In this circular steel pipe column 1A, not only the column portion but also the connection thickening portion 6 have a circular cross-sectional shape.
When the beam 2 is attached, it is necessary to perform an arc-shaped cutting process on the flange 2 a of the beam 2 so as to match the curvature of the connection thickening portion 6. As a result, two beams 2
When installed between the circular steel pipe columns 1A, 1A, the beam 2 lifted by the crane cannot be inserted between the circular steel pipe columns 1A, 1A from the side, and it is necessary to drop the beam 2 to a predetermined position from the upper side. Therefore, there is a problem that workability is extremely poor. Further, when the flange 2a of the beam 2 is attached to the connection thickened portion 6 of the circular steel pipe column 1, it is necessary to weld the flange 2a in an arc shape, so that the groove of the welded portion and the backing metal are also formed in an arc shape. And the welding operation itself is technically difficult, so it is generally avoided.
【０００６】また、この円形鋼管柱１Ａの仕口増厚部６
は、厳しい熱履歴を受けるため、鋼材メーカーが発行す
る円形鋼管の品質保証書はこの加工後に無効となるの
で、加熱圧縮された仕口増厚部６の材質を保証するため
には、当該鋼管柱１Ａと同じ熱履歴を与えた円形鋼管を
もう一体別に作製し、これから試験片を切り出し機械的
性質の確認試験をする必要があるため、コスト高になる
のが避けられない。Further, the connection thickening portion 6 of the circular steel tube column 1A is provided.
Because of the severe thermal history, the quality assurance statement of the circular steel pipe issued by the steel maker becomes invalid after this processing, so in order to guarantee the material of the heated and compressed connection thickening part 6, the steel pipe column A circular steel pipe having the same thermal history as that of 1A must be manufactured separately, and a test piece must be cut out therefrom and subjected to a test for confirming the mechanical properties, which inevitably increases the cost.
【０００７】本発明は、上記事情に鑑みて為されたもの
で、増厚される幅が短くて加工および品質維持が容易な
ダイアフラム付き鋼管柱を提供することを目的とする。
また、本発明は、ダイアフラムに接合される梁等を円弧
状に切断する必要がなくなり、現場作業を容易に行うこ
とができるダイアフラム付き鋼管柱を提供することを目
的とする。また、本発明は、ダイアフラムの品質保証試
験を経済的に行うことができる試験片を提供することを
目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a steel pipe column with a diaphragm, which has a small width to be thickened and is easy to process and maintain quality.
It is another object of the present invention to provide a steel pipe column with a diaphragm which eliminates the necessity of cutting a beam or the like joined to the diaphragm into an arc shape and can easily perform on-site work. Another object of the present invention is to provide a test piece that can economically perform a quality assurance test on a diaphragm.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に記載のダイアフラム付き鋼管柱は、ウェ
ブの上下にフランジを有する梁が接合されるダイアフラ
ム付き鋼管柱であって、鋼管の局部が加熱されて前記鋼
管の軸線方向に圧縮力が加えられることにより、前記鋼
管の前記局部の板厚が増大されて形成された、外面側お
よび内面側に突出するダイアフラムを前記梁の上下のフ
ランジ高さに有して成ることを特徴とする。In order to achieve the above object, a steel pipe column with a diaphragm according to claim 1 is a steel pipe column with a diaphragm to which beams having flanges above and below a web are joined. By heating the local part of the steel pipe and applying a compressive force in the axial direction of the steel pipe, the thickness of the local part of the steel pipe is increased to form a diaphragm protruding outwardly and inwardly. Characterized by having a flange height.
【０００９】請求項１の発明においては、溶接接合でダ
イアフラムを鋼管柱に取り付ける必要がなく、鋼管の切
断、開先加工、溶接、超音波検査などの工程を省略する
ことが可能で、経済的なダイアフラム付き鋼管柱を提供
することができる。また、外面側および内面側の両方に
突出するダイアフラムが形成されているので、従来のよ
うに溶接等により固定されるダイアフラムと同等の仕口
部の耐力と剛性が得られる。また、梁の上下のフランジ
が接合される部分のみが板厚を増大されるので、増厚さ
れる幅が短いため加工が容易であるとともに、厳しい熱
履歴を受ける部分が短いため品質を維持し易い。さら
に、梁の上下のフランジが接合される部分のみの板厚を
増大しているので、接合部の面外曲げ剛性を局部的に高
めることができるため、効率的に所定の仕口部耐力・剛
性を得ることができる。その結果、従来のように仕口パ
ネル部全体を増厚させる場合に比較し、少ない鋼材重量
で所定の仕口部耐力と剛性を得ることができる。According to the first aspect of the present invention, it is not necessary to attach the diaphragm to the steel pipe column by welding, and it is possible to omit processes such as cutting, beveling, welding, and ultrasonic inspection of the steel pipe, and it is economical. It is possible to provide a steel pipe column with a simple diaphragm. Further, since the projecting diaphragms are formed on both the outer surface side and the inner surface side, the same proof strength and rigidity of the connection portion as the conventional diaphragm fixed by welding or the like can be obtained. In addition, since the thickness of only the portion where the upper and lower flanges of the beam are joined is increased, the width of the increased thickness is short, so that processing is easy, and quality is maintained because the portion that receives severe thermal history is short. easy. Furthermore, since the thickness of only the portion where the upper and lower flanges of the beam are joined is increased, the out-of-plane bending stiffness of the joint can be locally increased, so that the predetermined joint proof stress can be efficiently achieved. Rigidity can be obtained. As a result, a predetermined joint strength and rigidity can be obtained with a smaller steel material weight as compared with the conventional case where the entire joint panel is thickened.
【００１０】ここで、ウェブの上下にフランジを有する
梁としては、例えば、Ｈ形鋼からなる梁や溝形鋼からな
る梁等がある。なお、仕口部の耐力および剛性の微調整
などのためにダイアフラム間の仕口部の板厚も増大させ
るようにしても良い。また、鋼管柱の内部にコンクリー
トを充填したコンクリート充填鋼管柱としても良い。こ
の場合、ダイアフラムの内面突出部により梁からの鉛直
力が充填コンクリートに確実に伝達される。Here, as the beams having flanges above and below the web, for example, there are beams made of H-section steel, beams made of channel steel, and the like. The thickness of the joint between the diaphragms may be increased for fine adjustment of the strength and rigidity of the joint. Moreover, it is good also as a concrete filling steel pipe pillar which filled concrete inside the steel pipe pillar. In this case, the vertical force from the beam is reliably transmitted to the filled concrete by the inner projection of the diaphragm.
【００１１】請求項２に記載のダイアフラム付き鋼管柱
は、請求項１の発明において、前記梁はＨ形鋼からな
り、前記鋼管柱は円形鋼管からなる円形鋼管柱であっ
て、前記鋼管柱の前記ダイアフラムの外面突出部は円環
状に形成され、かつ前記外面突出部の出幅ｈｓが０．０
３０≦ｈｓ／Ｄ≦０．１５６（Ｄは円形鋼管の外径）の
範囲にあることを特徴とする。According to a second aspect of the present invention, in the steel pipe column with a diaphragm according to the first aspect, the beam is made of an H-shaped steel, and the steel pipe column is a circular steel pipe column made of a circular steel pipe. The outer protrusion of the diaphragm is formed in an annular shape, and the protrusion width hs of the outer protrusion is 0.0
30 ≦ hs / D ≦ 0.156 (D is the outer diameter of the circular steel pipe).
【００１２】ここで、上記外面突出部の出幅ｈｓを上記
範囲に設定した理由を説明する。図５（ａ）に示すよう
に、円形鋼管柱１０のダイアフラム１１の外面突出部１
２を直線的に切断し、これにより梁２のフランジ２ａを
円弧状に切断加工することなく、ダイアフラム１１に溶
接することを前提に検討すると以下のようになる。図５
（ａ）に示すように、外面突出部１２の切断面１２ａの
切断幅Ｂ、切断位置（円形鋼管柱１０の中心からの切断
面１２ａまでの距離）Ｈ、円形鋼管柱１０外面からの外
面突出部１２の出幅ｈｓおよび円形鋼管（円形鋼管柱１
０）の外径Ｄとの間には、以下の関係が成立する。Here, the reason why the protrusion width hs of the outer protruding portion is set in the above range will be described. As shown in FIG. 5 (a), the outer projection 1 of the diaphragm 11 of the circular steel pipe column 10
2 is cut in a straight line, and the flange 2a of the beam 2 is cut into a circular arc, and the welding is performed on the diaphragm 11 without cutting, as described below. FIG.
As shown in (a), the cutting width B of the cutting surface 12a of the outer surface protruding portion 12, the cutting position (the distance from the center of the circular steel tube column 10 to the cutting surface 12a) H, the outer surface protrusion from the outer surface of the circular steel tube column 10 The width hs of the portion 12 and the circular steel pipe (circular steel pipe column 1)
The following relationship is established with the outer diameter D of 0).
【００１３】[0013]
【数１】 （Ｂ／２）2＋Ｈ2＝（Ｄ／２＋ｈｓ）2 （１）(B / 2) 2 + H 2 = (D / 2 + hs) 2 (1)
【００１４】切断位置Ｈを円形鋼管の半径Ｄ／２と一致
させると、式（１）は式（２）のようになる。When the cutting position H is matched with the radius D / 2 of the circular steel pipe, equation (1) becomes as equation (2).
【００１５】[0015]
【数２】 ｈｓ／Ｄ＝０．５×（√（Ｂ／Ｄ）2＋１）−１） （２）Hs / D = 0.5 × (√ (B / D) 2 +1) -1) (2)
【００１６】梁幅Ｂｆは、日本建築学会「鋼管構造設計
施工指針」の仕口耐力設計式（同指針・解説表４．９）
の適用範囲にあるように、０．２５≦Ｂｆ／Ｄ≦０．７
５の範囲を考えればよい。一方、切断幅Ｂは、梁フラン
ジ２ａ両端部に溶接用のタブプレートを取り付けるため
に、梁幅Ｂｆよりも３０〜８０ｍｍ程度（鋼管径の約１
割に相当）大きくするのが常であるから、０．３５≦Ｂ
／Ｄ≦０．８５として、これを式（２）に代入し、式
（３）を得る。The beam width Bf is determined by a formula for the joint strength of the Architectural Institute of Japan, "Guidelines for Design and Construction of Steel Pipe Structures".
0.25 ≦ Bf / D ≦ 0.7
The range of 5 may be considered. On the other hand, the cutting width B is about 30 to 80 mm (about 1 mm of the steel pipe diameter) larger than the beam width Bf in order to attach tab plates for welding to both ends of the beam flange 2a.
0.35 ≦ B
Assuming that /D≦0.85, this is substituted into Expression (2) to obtain Expression (3).
【００１７】[0017]
【数３】 ０．０３０≦ｈｓ／Ｄ≦０．１５６ （３）[Equation 3] 0.030 ≦ hs / D ≦ 0.156 (3)
【００１８】請求項２の発明においては、ダイアフラム
に梁等を接合するためにダイアフラムの外面突出部を切
断する場合に、直線状に切断して梁等の幅以上の平面部
分が得られるように外面突出部の出幅ｈｓが確保されて
いるので、梁等を円弧状に切断加工する必要がないた
め、溶接時の作業性に著しく優れている。また、現場で
の鉄骨建て方時に、横側から円形鋼管柱間に梁等を挿入
することができるため、作業性に優れている。According to the second aspect of the present invention, when the projection on the outer surface of the diaphragm is cut in order to join the beam or the like to the diaphragm, the diaphragm is cut in a straight line so that a plane portion larger than the width of the beam or the like is obtained. Since the protrusion width hs of the outer protruding portion is ensured, there is no need to cut a beam or the like into an arc shape, so that workability during welding is remarkably excellent. Moreover, since a beam or the like can be inserted between the circular steel pipe columns from the side when the steel frame is built on site, the workability is excellent.
【００１９】請求項３に記載のダイアフラム付き円形鋼
管柱は、請求項２の発明において、前記外面突出部の外
周部の厚さｔｓが、ｔｓ／Ｄ≦０．５の範囲にあること
を特徴とする。According to a third aspect of the present invention, in the circular steel pipe column with the diaphragm according to the second aspect, the outer peripheral portion of the outer surface protruding portion has a thickness ts of ts / D ≦ 0.5. And
【００２０】ここで、上記外周突出部の外周部の厚さｔ
ｓを上記範囲に設定した理由を説明する。外面突出部１
２の外周部の厚さｔｓは、図５（ｂ）に示すように、直
線状に切断される前の状態の外面突出部の外周部の平行
部分の幅として定義される。梁フランジ２ａの板厚ｔｆ
は、一般に、鋼管板厚ｔｐにほぼ等しい。即ち、Here, the thickness t of the outer peripheral portion of the outer peripheral projecting portion is set.
The reason why s is set in the above range will be described. Outer surface projection 1
The thickness ts of the outer peripheral portion of No. 2 is defined as the width of a parallel portion of the outer peripheral portion of the outer surface protruding portion before being cut straight, as shown in FIG. Plate thickness tf of beam flange 2a
Is generally equal to the steel pipe plate thickness tp. That is,
【００２１】[0021]
【数４】ｔｆ＝ｔｐ （４）## EQU4 ## tf = tp (4)
【００２２】一方、構造用に用いられる円形鋼管の板厚
ｔｐと円形鋼管柱１０の外径Ｄとの比ｔｐ／Ｄの最大値
は式（５）の通りである。On the other hand, the maximum value of the ratio tp / D between the thickness tp of the circular steel pipe used for the structure and the outer diameter D of the circular steel pipe column 10 is given by equation (5).
【００２３】[0023]
【数５】ｔｐ／Ｄ≦０．１ （５）Tp / D ≦ 0.1 (5)
【００２４】外面突出部１２の厚さｔｓは、最低でも梁
フランジ２ａの板厚ｔｆより大きいことが必要である。
その最大値については、図４（ｂ）に示すように、円形
鋼管柱１０に複数の梁２，２Ａが取り付けられ、かつそ
れらの梁２，２Ａのせいが異なり、１つのダイアフラム
１１の外周突出部１２の厚さｔｓでこれらの梁せいの寸
法の違いを吸収する場合などを想定しても、式（６）を
満たせば十分である。The thickness ts of the outer projection 12 must be at least larger than the thickness tf of the beam flange 2a.
As for the maximum value, as shown in FIG. 4 (b), a plurality of beams 2, 2A are attached to a circular steel pipe column 10, and the outer diameter of one diaphragm 11 is different due to the differences in the beams 2, 2A. Even if it is assumed that the difference in the dimensions of these beams is absorbed by the thickness ts of the portion 12, it is sufficient to satisfy the expression (6).
【００２５】[0025]
【数６】ｔｓ≦５×ｔｆ （６）Ts ≦ 5 × tf (6)
【００２６】したがって、式（４）、式（５）及び式
（６）より、式（７）が導かれる。Therefore, equation (7) is derived from equations (4), (5) and (6).
【００２７】[0027]
【数７】ｔｓ／Ｄ≦０．５ （７）Ts / D ≦ 0.5 (7)
【００２８】請求項３の発明においては、異なるせいの
梁が同一仕口部に接合される場合でも充分に対応するこ
とができる。According to the third aspect of the present invention, it is possible to sufficiently cope with a case where beams of different causes are joined to the same port.
【００２９】請求項４に記載の試験片は、請求項２また
は請求項３に記載のダイアフラム付き鋼管柱の機械的性
質を試験するための試験片であって、前記ダイアフラム
の前記外側突出部が前記梁を接合するための接合面を得
るために直線状に切断されて生じた残材から作製されて
いることを特徴とする。請求項４の発明においては、円
形鋼管柱と同じ熱履歴を与えた円形鋼管をもう一体別に
作製することなく、作製したダイアフラムから引張試験
片やシャルピー衝撃試験片などの機械的性質を確認する
ための試験片を直接作製し、これを試験することで熱履
歴を受けたダイアフラムの品質保証を行うことができ
る。したがって、ダイアフラムの品質保証試験を経済的
に行うことができる。According to a fourth aspect of the present invention, there is provided a test piece for testing mechanical properties of the steel pipe column with the diaphragm according to the second or third aspect, wherein the outer protrusion of the diaphragm is provided. It is characterized in that it is made from a residual material that is cut in a straight line to obtain a joint surface for joining the beams. In the invention of claim 4, in order to confirm mechanical properties such as a tensile test specimen and a Charpy impact test specimen from the produced diaphragm without separately producing a circular steel pipe having the same thermal history as the circular steel pipe column. By directly fabricating the test piece and testing the same, the quality of the diaphragm subjected to the thermal history can be assured. Therefore, the quality assurance test of the diaphragm can be performed economically.
【００３０】[0030]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。図１は、本発明の実施の形態に係
るダイアフラム付き円形鋼管柱を示す図であって、
（ａ）は縦断面図、（ｂ）は横断面図である。このダイ
アフラム付き円形鋼管柱（鋼管柱）は、円形鋼管からな
る円形鋼管柱（鋼管柱）１０の外面側および内面側に突
出する円環状のダイアフラム１１，１１が円形鋼管柱１
０の長手方向に所定間隔をおいて形成されている。これ
ら２つのダイアフラム１１，１１間の中心間距離は、接
合されるＨ型鋼からなる梁２のフランジ２ａ，２ａ間の
距離と同じに設定されている。ダイアフラム１１の円環
状の外面突出部１２の突出量は、円環状の内面突出部１
３の突出量よりも大きく、その出幅ｈｓは０．０３０≦
ｈｓ／Ｄ≦０．１５６（Ｄは円形鋼管の外径）の範囲に
設定されている。また、外面突出部１２の外周部の厚さ
ｔｓは、ｔｓ／Ｄ≦０．５の範囲に設定されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a circular steel pipe column with a diaphragm according to an embodiment of the present invention,
(A) is a longitudinal sectional view, (b) is a transverse sectional view. This circular steel pipe column with a diaphragm (steel pipe column) has annular diaphragms 11, 11 protruding outward and inside of a circular steel pipe column (steel pipe column) 10 made of a circular steel pipe.
0 are formed at predetermined intervals in the longitudinal direction. The center-to-center distance between these two diaphragms 11, 11 is set to be the same as the distance between the flanges 2a, 2a of the beam 2 made of H-shaped steel to be joined. The amount of protrusion of the annular outer protrusion 12 of the diaphragm 11 is determined by the amount of the annular inner protrusion 1.
3 is larger than the protrusion amount, and the width hs of the protrusion is 0.030 ≦
hs / D ≦ 0.156 (D is the outer diameter of the circular steel pipe). The thickness ts of the outer peripheral portion of the outer surface protruding portion 12 is set in a range of ts / D ≦ 0.5.
【００３１】このダイアフラム付き円形鋼管柱は次のよ
うにして製造する。すなわち、図２に示すように、一端
を固定装置Ｓに固定した円形鋼管Ｋの局部を加熱装置Ｈ
により加熱した後、該円形鋼管Ｋの軸線方向に圧縮装置
Ｐにより圧縮力を加えて円形鋼管Ｋの局部の板厚を増大
して、外面側および内面側に突出するダイアフラムを形
成し、その後冷却して固化する。This circular steel pipe column with a diaphragm is manufactured as follows. That is, as shown in FIG. 2, a local portion of the circular steel pipe K having one end fixed to the fixing device S is heated by the heating device H.
Then, a compressive force is applied by a compression device P in the axial direction of the circular steel pipe K to increase the local plate thickness of the circular steel pipe K, thereby forming a diaphragm protruding to the outer side and the inner side, and then cooling. And solidify.
【００３２】図３は、ダイアフラムの外面突出部を直線
状に切断した状態を示す横断面図である。切断された弓
形状の切断片（残材）２０は、引張試験片やシャルピー
衝撃試験片などの機械的性質確認用の試験片２１を作製
するのに用いられる。FIG. 3 is a cross-sectional view showing a state where the outer projection of the diaphragm is cut straight. The cut bow-shaped cut piece (remaining material) 20 is used to produce a test piece 21 for checking mechanical properties such as a tensile test piece and a Charpy impact test piece.
【００３３】図４（ａ），（ｂ）は、それぞれ他の実施
の形態に係るダイアフラム付き円形鋼管柱を示す縦断面
図である。図４（ａ）に示すダイアフラム付き円形鋼管
柱では、ダイアフラム１１，１１が形成されているだけ
でなく、鋼管仕口部Ｋ1の板厚も鋼管柱部Ｋ2の板厚（素
材鋼管の板厚）より増大されている。これにより、仕口
部の耐力および剛性の微調整や梁ウェブ２ｂのモーメン
ト伝達率を向上させ梁２の最大耐力を増大させることが
できる。FIGS. 4A and 4B are longitudinal sectional views showing a circular steel tube column with a diaphragm according to another embodiment. 4 by a diaphragm with a circular steel column is shown in (a), not only the diaphragm 11, 11 is formed, the steel pipe Joint part K 1 of the thickness also of steel bar portion K 2 thickness (plate material steel pipe Thickness). Thereby, it is possible to finely adjust the proof strength and rigidity of the connection portion, improve the moment transmission rate of the beam web 2b, and increase the maximum proof strength of the beam 2.
【００３４】一方、図４（ｂ）に示すダイアフラム付き
円形鋼管柱では、円形鋼管柱１０の内部にコンクリート
３０が充填されており、いわゆるＣＦＴ柱（コンクリー
ト充填鋼管柱）として使用されている。この場合、ダイ
アフラム１１の内面突出部１３が、梁２からの鉛直力を
確実に充填コンクリート３０へ伝達する役割を果たす。
また、このダイアフラム付き円形鋼管柱に取り付けられ
る左右の梁２、２Ａのせいが異なっており、その寸法差
を下フランジ２ａ側のダイアフラム１１の外面突出部の
厚さｔｓで吸収している。On the other hand, in a circular steel pipe column with a diaphragm shown in FIG. 4B, concrete 30 is filled inside the circular steel pipe column 10 and is used as a so-called CFT column (concrete filled steel pipe column). In this case, the inner protruding portion 13 of the diaphragm 11 plays a role in transmitting the vertical force from the beam 2 to the concrete filling 30 reliably.
Also, the left and right beams 2, 2A attached to the circular steel pipe column with the diaphragm are different from each other, and the dimensional difference is absorbed by the thickness ts of the outer projection of the diaphragm 11 on the lower flange 2a side.
【００３５】[0035]
【発明の効果】以上説明したように、本発明のダイアフ
ラム付き鋼管柱によれば、増厚される幅が短くて加工お
よび品質維持が容易である。また、本発明のダイアフラ
ム付き鋼管柱によれば、ダイアフラムに接合される梁等
を円弧状に切断する必要がなくなり、現場作業を容易に
行うことができる。また、本発明の試験片によれば、ダ
イアフラムの品質保証試験を経済的に行うことができ
る。As described above, according to the steel pipe column with the diaphragm of the present invention, the width to be increased in thickness is short, and processing and quality maintenance are easy. In addition, according to the steel pipe column with the diaphragm of the present invention, it is not necessary to cut a beam or the like joined to the diaphragm into an arc shape, so that on-site work can be easily performed. Further, according to the test piece of the present invention, a quality assurance test of the diaphragm can be economically performed.
【図１】本発明の実施の形態に係るダイアフラム付き円
形鋼管柱を示す図であって、（ａ）は縦断面図、（ｂ）
は横断面図である。FIG. 1 is a view showing a circular steel pipe column with a diaphragm according to an embodiment of the present invention, wherein (a) is a longitudinal sectional view and (b)
Is a cross-sectional view.
【図２】本発明に係るダイアフラム付き円形鋼管柱の製
造方法を説明するための図である。FIG. 2 is a view for explaining a method for manufacturing a circular steel pipe column with a diaphragm according to the present invention.
【図３】本発明に係るダイアフラムの外面突出部を直線
状に切断した状態を示す横断面図である。FIG. 3 is a cross-sectional view showing a state in which an outer surface protruding portion of the diaphragm according to the present invention is cut linearly.
【図４】（ａ）および（ｂ）はそれぞれ本発明の他の実
施の形態に係るダイアフラム付き円形鋼管柱を示す縦断
面図である。FIGS. 4A and 4B are longitudinal sectional views showing a circular steel tube column with a diaphragm according to another embodiment of the present invention.
【図５】本発明を説明するための図であって、（ａ）は
横縦断面図、（ｂ）は縦断面図である。5A and 5B are diagrams for explaining the present invention, wherein FIG. 5A is a horizontal and vertical sectional view, and FIG. 5B is a vertical sectional view.
【図６】従来のダイアフラム付き円形鋼管柱を示す断面
図であって、（ａ）は通しダイアフラム形式、（ｂ）は
外ダイアフラム形式のものを示す。6A and 6B are cross-sectional views showing a conventional circular steel tubular column with a diaphragm, wherein FIG. 6A shows a through-diaphragm type, and FIG. 6B shows an outer-diaphragm type.
【図７】従来の他の円形鋼管柱を示す図であって、
（ａ）は縦断面図、（ｂ）は平面図である。FIG. 7 is a view showing another conventional circular steel pipe column,
(A) is a longitudinal sectional view, (b) is a plan view.
２，２Ａ 梁 ２ａ フランジ ２ｂ ウェブ １０ 円形鋼管柱(鋼管柱) １１ ダイアフラム １２ 外側突出部 １２ａ 切断面 １３ 内側突出部 ２０ 切断片（残材） ｈｓ 外側突出部の出幅 Ｄ 円形鋼管の外径 ｔｓ 外側突出部の外周部の厚さ 2, 2A Beam 2a Flange 2b Web 10 Circular steel pipe column (steel pipe column) 11 Diaphragm 12 Outer projection 12a Cutting surface 13 Inner projection 20 Cut piece (remaining material) hs Outer width of outer projection D Outside diameter of circular steel pipe ts Thickness of outer periphery of outer protrusion
フロントページの続き Ｆターム(参考） 2E125 AA03 AA13 AB01 AB17 AC15 AC16 AC29 AG04 AG25 AG32 AG38 AG49 BE10 CA90 EA33 2E163 FA02 FA12 FB02 FB06 FB09 FB42 FB43 FF01 FF13 FF17Continued on front page F-term (reference) 2E125 AA03 AA13 AB01 AB17 AC15 AC16 AC29 AG04 AG25 AG32 AG38 AG49 BE10 CA90 EA33 2E163 FA02 FA12 FB02 FB06 FB09 FB42 FB43 FF01 FF13 FF17
Claims (4)
合される鋼管柱であって、 鋼管の局部が加熱されて前記鋼管の軸線方向に圧縮力が
加えられることにより、前記鋼管の前記局部の板厚が増
大されて形成された、外面側および内面側に突出するダ
イアフラムを前記梁の上下のフランジ高さに有して成る
ことを特徴とするダイアフラム付き鋼管柱。1. A steel pipe column to which beams having flanges above and below a web are joined, wherein a local part of the steel pipe is heated and a compressive force is applied in an axial direction of the steel pipe to thereby form the local part of the steel pipe. A steel pipe column with a diaphragm, characterized in that the steel pipe column having a diaphragm formed at an upper and lower flange height of the beam, the diaphragm protruding on the outer surface side and the inner surface side formed with an increased plate thickness.
円形鋼管からなる円形鋼管柱であって、前記鋼管柱の前
記ダイアフラムの外面突出部は円環状に形成され、かつ
前記外面突出部の出幅ｈｓが０．０３０≦ｈｓ／Ｄ≦
０．１５６（Ｄは円形鋼管の外径）の範囲にあることを
特徴とする請求項１に記載のダイアフラム付き鋼管柱。2. The beam is made of an H-shaped steel, the steel pipe column is a circular steel pipe column made of a circular steel pipe, and the outer projection of the diaphragm of the steel pipe column is formed in an annular shape, and the outer projection is formed. The width hs of the part is 0.030 ≦ hs / D ≦
The steel pipe column with a diaphragm according to claim 1, wherein the diameter is in a range of 0.156 (D is an outer diameter of the circular steel pipe).
ｔｓ／Ｄ≦０．５の範囲にあることを特徴とする請求項
２に記載のダイアフラム付き鋼管柱3. A thickness ts of an outer peripheral portion of the outer surface protruding portion is:
3. The steel pipe column with a diaphragm according to claim 2, wherein ts / D ≦ 0.5.
フラム付き鋼管柱の機械的性質を試験するための試験片
であって、 前記ダイアフラムの前記外側突出部が前記梁を接合する
ための接合面を得るために直線状に切断されて生じた残
材から作製されていることを特徴とする試験片。4. A test piece for testing a mechanical property of a steel pipe column with a diaphragm according to claim 2 or 3, wherein the outer protrusion of the diaphragm is used to join the beam. A test piece characterized by being made from a residual material that has been cut straight to obtain a surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000179466A JP2001355288A (en) | 2000-06-15 | 2000-06-15 | Steel pipe column with diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000179466A JP2001355288A (en) | 2000-06-15 | 2000-06-15 | Steel pipe column with diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001355288A true JP2001355288A (en) | 2001-12-26 |
Family
ID=18680740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000179466A Pending JP2001355288A (en) | 2000-06-15 | 2000-06-15 | Steel pipe column with diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001355288A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264710A (en) * | 2004-02-17 | 2005-09-29 | Arcreate:Kk | Direct connection method of beam and inner diaphragm of beam-column joint section of steel framed structure |
| CN105780968A (en) * | 2016-03-15 | 2016-07-20 | 兰州理工大学 | Steel plate shear wall structure suitable for high-rise/super high-rise buildings in high-seismic-intensity regions |
| CN108222373A (en) * | 2017-12-05 | 2018-06-29 | 姚攀峰 | A kind of reinforced cold-bent pipe concrete column and structural system and construction method |
| CN111502036A (en) * | 2020-05-07 | 2020-08-07 | 东亚装饰股份有限公司 | Prefabricated assembled building assembly structure |
-
2000
- 2000-06-15 JP JP2000179466A patent/JP2001355288A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264710A (en) * | 2004-02-17 | 2005-09-29 | Arcreate:Kk | Direct connection method of beam and inner diaphragm of beam-column joint section of steel framed structure |
| JP4571432B2 (en) * | 2004-02-17 | 2010-10-27 | 株式会社アークリエイト | Direct connection method of beam and inner diaphragm of steel structure column beam joint |
| CN105780968A (en) * | 2016-03-15 | 2016-07-20 | 兰州理工大学 | Steel plate shear wall structure suitable for high-rise/super high-rise buildings in high-seismic-intensity regions |
| CN105780968B (en) * | 2016-03-15 | 2018-09-14 | 兰州理工大学 | Steel plate shear wall structure suitable for highlight lines area high-rise/super high-rise building |
| CN108222373A (en) * | 2017-12-05 | 2018-06-29 | 姚攀峰 | A kind of reinforced cold-bent pipe concrete column and structural system and construction method |
| CN108222373B (en) * | 2017-12-05 | 2024-01-30 | 姚攀峰 | Reinforced cold-formed steel tube concrete column, structural system and construction method |
| CN111502036A (en) * | 2020-05-07 | 2020-08-07 | 东亚装饰股份有限公司 | Prefabricated assembled building assembly structure |
| CN111502036B (en) * | 2020-05-07 | 2022-02-25 | 东亚装饰股份有限公司 | Prefabricated assembled building assembly structure |
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