JP3529360B2 - Steel pipe column - Google Patents
Steel pipe columnInfo
- Publication number
- JP3529360B2 JP3529360B2 JP2001104013A JP2001104013A JP3529360B2 JP 3529360 B2 JP3529360 B2 JP 3529360B2 JP 2001104013 A JP2001104013 A JP 2001104013A JP 2001104013 A JP2001104013 A JP 2001104013A JP 3529360 B2 JP3529360 B2 JP 3529360B2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- short
- welding
- long
- 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.)
- Expired - Lifetime
Links
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- Joining Of Building Structures In Genera (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、たとえば鉄骨構造
物の支柱として使用される鋼管柱に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe column used as a column of a steel frame structure, for example.
【０００２】[0002]
【従来の技術】従来、支柱として使用される鋼管柱は、
複数の鋼管を溶接結合することにより構成されており、
その際に溶接結合として、たとえば通しダイヤフラム方
式や内ダイヤフラム方式などが提供されている。2. Description of the Related Art Conventionally, steel pipe columns used as columns are
It is composed by welding multiple steel pipes together,
At that time, for example, a through diaphragm method or an inner diaphragm method is provided as the welding connection.
【０００３】このうち通しダイヤフラム方式は、たとえ
ば図１０に示されるように、支柱が、その長さ方向にお
いて下部支柱２１とパネルゾーン用のコラム２２と上部
支柱２３とに切断（分断）されている。そして下部支柱
２１の上端に、裏当て材を介して下部ダイヤフラム２４
が溶接されるとともに、この下部ダイヤフラム２４上に
裏当て材を介してコラム２２の下端が溶接される。さら
にコラム２２の上端に、裏当て材を介して上部ダイヤフ
ラム２５が溶接されるとともに、この上部ダイヤフラム
２５上に裏当て材を介して上部支柱２３の下端が溶接さ
れる。Of these, in the through diaphragm system, as shown in FIG. 10, for example, the support pillar is cut (separated) into a lower support pillar 21, a panel zone column 22 and an upper support pillar 23 in the length direction thereof. . Then, the lower diaphragm 24 is attached to the upper end of the lower support column 21 through a backing material.
Is welded, and the lower end of the column 22 is welded onto the lower diaphragm 24 via a backing material. Further, the upper diaphragm 25 is welded to the upper end of the column 22 via the backing material, and the lower end of the upper column 23 is welded to the upper diaphragm 25 via the backing material.
【０００４】このようにして形成された支柱２６に対す
る梁フランジまたは梁材（主にＨ形鋼材）２７の連結
は、この梁フランジまたは梁材２７の遊端を、両ダイヤ
フラム２４，２５やコラム２２に溶接することで行って
いた。そして両ダイヤフラム２４，２５は、応力の伝達
の役目を成していた。The connection of the beam flange or the beam material (mainly H-shaped steel material) 27 to the column 26 formed in this way is performed by connecting the free ends of the beam flange or the beam material 27 to both the diaphragms 24, 25 and the column 22. It was done by welding to. Both diaphragms 24 and 25 play a role of transmitting stress.
【０００５】また内ダイヤフラム方式は、たとえば図１
１に示されるように、支柱が、その長さ方向において下
部支柱３１と上部支柱３２とに切断（分断）されてい
る。そして下部支柱３１内の上部と上部支柱３２内の下
部とに、それぞれ裏当て材を介してダイヤフラム３３が
溶接により結合されている。これら下部支柱３１と上部
支柱３２とは、直線状に位置されたのち、その遊端間が
溶接により結合されている。The inner diaphragm system is, for example, as shown in FIG.
As shown in FIG. 1, the column is cut (separated) into a lower column 31 and an upper column 32 in the length direction. The diaphragm 33 is welded to the upper part of the lower support column 31 and the lower part of the upper support column 32 via backing materials. The lower strut 31 and the upper strut 32 are positioned linearly, and the free ends thereof are joined by welding.
【０００６】このようにして形成された支柱３４に対す
る梁フランジまたは梁材３５の連結は、この梁フランジ
または梁材３５の遊端を、上下のダイヤフラム３３に対
向させた状態で、下部支柱３１と上部支柱３２との外面
に溶接により結合することで行われていた。The connection of the beam flange or the beam member 35 to the column 34 thus formed is performed with the lower column 31 with the free ends of the beam flange or beam member 35 facing the upper and lower diaphragms 33. This is done by welding to the outer surface of the upper support column 32.
【０００７】[0007]
【発明が解決しようとする課題】上記した従来の構成に
おいて、図１０に示される通しダイヤフラム方式による
と、支柱（鋼管）２６は、短く切断するとともに溶接の
ための開先加工を行い、そして両ダイヤフラム２４，２
５は、それぞれ上下の二箇所、合計四箇所を溶接するこ
とから、組立て工数が多くかつ溶接長さは長くなり、以
て全体作業が複雑化するとともに製作費が高くなる。In the conventional structure described above, according to the through diaphragm system shown in FIG. 10, the support column (steel pipe) 26 is cut into a short length and a groove is formed for welding. Diaphragm 24,2
In No. 5, the upper and lower parts are welded to each other, and a total of four parts are welded. Therefore, the number of assembling steps is long and the welding length is long, which complicates the whole work and increases the manufacturing cost.
【０００８】また図１１に示される内ダイヤフラム方式
によると、両ダイヤフラム３３のそれぞれの溶接と、下
部支柱３１と上部支柱３２との溶接との、合計三箇所の
溶接が必要となることから、組立て工数が多くかつ溶接
長さは長くなり、以て全体作業が複雑化するとともに製
作費が高くなる。さらにダイヤフラム３３は、下部支柱
３１と上部支柱３２との端部近くにしか配置できず、ま
た下部支柱３１と上部支柱３２との溶接結合部３６を跨
いで梁フランジまたは梁材３５が溶接により結合される
ことから、支柱３４は、梁フランジまたは梁材３５の連
結位置に応じて短く切断され、長い一本ものの支柱には
できなかった。Further, according to the inner diaphragm method shown in FIG. 11, since welding of both diaphragms 33 and welding of the lower support column 31 and the upper support column 32 need to be welded at a total of three places, assembly is required. Since the man-hours are large and the welding length is long, the whole work becomes complicated and the manufacturing cost becomes high. Further, the diaphragm 33 can be arranged only near the ends of the lower strut 31 and the upper strut 32, and the beam flange or beam member 35 is welded to the welded portion 36 of the lower strut 31 and the upper strut 32. Therefore, the support column 34 is cut short according to the connection position of the beam flange or the beam member 35, and it is not possible to form a single long support column.
【０００９】なお、別に外ダイヤフラム方式もあるが、
これによると支柱外部の構造物が大型、重量大となり、
しかも溶接長さが長いものとなる。そこで本発明は、溶
接前の相対位置関係を簡単にして精度よく行え、そして
裏当て金を不要とした二箇所の溶接でよく、しかも十分
な強度を持った鋼管柱を提供することを目的としたもの
である。There is also an outer diaphragm system,
According to this, the structure outside the pillar becomes large and heavy,
Moreover, the welding length becomes long. Therefore, the present invention has an object to provide a steel pipe column having a simple relative positional relationship before welding, which can be accurately performed, and which can be welded at two points without a backing metal, and which has sufficient strength. It was done.
【００１０】[0010]
【課題を解決するための手段】前述した目的を達成する
ために、本発明のうちで請求項１記載の鋼管柱は、所定
の板厚の長尺鋼管と、この長尺鋼管よりも板厚が厚くか
つパネルゾーンを形成する長さの短尺鋼管とからなり、
これら長尺鋼管と短尺鋼管とは、短尺鋼管を熱間成形し
て得たことにより、その外周形状を同一状に形成されて
おり、前記短尺鋼管の端部の外側には、前記長尺鋼管の
端部が外嵌可能な段部が形成され、この段部は、その外
向き面が端ほど内側の傾斜面に形成され、端に向く面は
開先面に形成されるとともに、傾斜面と開先面とが成す
角部が曲面に形成され、前記長尺鋼管の端部は開先面に
形成され、端部間を嵌合させたのち両開先面間を外側か
らの溶接により結合して構成されていることを特徴とし
たものである。In order to achieve the above-mentioned object, the steel pipe column according to claim 1 of the present invention is a long steel pipe having a predetermined plate thickness, and a plate thickness more than this long steel pipe. Consists of a short steel pipe that is thick and has a length that forms a panel zone,
These long steel pipes and short steel pipes are formed by hot forming short steel pipes.
As a result, the outer peripheral shape is formed to be the same, and a step portion to which the end portion of the long steel pipe can be fitted is formed outside the end portion of the short steel pipe. The outer surface is formed to be an inclined surface inward toward the end, the surface facing the end is formed to be a groove surface, and the corner portion formed by the inclined surface and the groove surface is formed to be a curved surface. The end of the length steel pipe is formed on the groove face, and the ends are fitted together, and then the two groove faces are joined by welding from the outside.
【００１１】したがって請求項１の発明によると、短尺
鋼管の端部の段部に長尺鋼管の端部を外嵌させる際に、
長尺鋼管の端部の先端内面を段部の傾斜面により案内す
ることで行え、そして、先端内面が傾斜面の中間におい
て密状となることで外嵌を終える。さらに、短尺鋼管の
端部の段部に長尺鋼管の端部を外嵌させたのち、両開先
面を利用して、相対向した端部間を外側からの全周に亘
っての溶接により結合することで、短尺鋼管をパネルゾ
ーンとして鋼管柱を構成し得る。その際に溶接による結
合は、短尺鋼管の端部を裏当て金に兼用した状態で、す
なわち別個に裏当て金を準備することなく行える。Therefore, according to the invention of claim 1, when the end of the long steel pipe is externally fitted to the step of the end of the short steel pipe,
This can be done by guiding the inner surface of the tip of the end of the long steel pipe by the inclined surface of the step, and the inner surface of the tip becomes dense in the middle of the inclined surface to complete the external fitting. Furthermore, after fitting the end of the long steel pipe to the step of the end of the short steel pipe, the welding is performed over the entire circumference from the outside between the opposite ends by using both groove faces. By connecting with each other, a steel pipe column can be formed by using the short steel pipe as a panel zone. At that time, the connection by welding can be performed in a state where the end portion of the short steel pipe is also used as the backing metal, that is, without separately preparing the backing metal.
【００１２】そして長尺鋼管と短尺鋼管とは、熱間成形
した短尺鋼管の外周形状を長尺鋼管の外周形状と同一状
（同様な外寸、同様な曲率半径）として端部間を溶接に
より結合し得る。しかも傾斜面と開先面とが成す角部を
曲面に形成したことで、この角部では応力分散を行え
る。さらにパネルゾーンの部分は、短尺鋼管の予め厚い
板厚によって十分な強度を確保し得る。しかも角形鋼管
柱はパイプジョイント形式で得られ、内蔵リブや裏当て
金などがない状態に仕上げ得る。The long steel pipe and the short steel pipe are hot formed.
The outer peripheral shape of the short steel pipe is the same as the outer peripheral shape of the long steel pipe (similar outer dimensions, similar radius of curvature), and the ends can be joined by welding. Moreover, since the corner portion formed by the inclined surface and the groove surface is formed as a curved surface, stress can be dispersed at this corner portion. Further, the panel zone portion can secure sufficient strength by the pre-thick plate thickness of the short steel pipe. Moreover, square steel tube columns are obtained in the form of pipe joints, and can be finished without built-in ribs or backing metal.
【００１３】また本発明の請求項２記載の鋼管柱は、上
記した請求項１記載の構成において、短尺鋼管の端部の
内面が、端ほど外側の傾斜面に形成されていることを特
徴としたものである。The steel pipe column according to a second aspect of the present invention is characterized in that, in the structure according to the above-mentioned first aspect, the inner surface of the end portion of the short steel pipe is formed to be an inclined surface which is closer to the outer end. It was done.
【００１４】したがって請求項２の発明によると、溶接
により結合を施工する際に裏当て金に兼用される短尺鋼
管の端部の板厚を、両傾斜面によって端窄まり状に形成
し得る。Therefore, according to the second aspect of the present invention, the plate thickness of the end portion of the short steel pipe which is also used as the backing metal when the connection is carried out by welding can be formed in a constricted shape by the both inclined surfaces.
【００１５】[0015]
【発明の実施の形態】以下に、本発明の第１の実施の形
態を、四角形の角形鋼管を採用した状態として、図１〜
図７に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS.
It will be described with reference to FIG.
【００１６】図６に示されるように、所定の板厚ｔの長
尺角形鋼管（長尺鋼管）１と、この長尺角形鋼管１の板
厚ｔよりも厚い板厚Ｔでかつパネルゾーンを形成する長
さ（高さ）Ｌの短尺角形鋼管（短尺鋼管）２とが準備さ
れる。ここで所定の板厚ｔとは、鉄骨構造物の規模に応
じて採用される鋼管柱の外寸Ｗなどにより決定されるも
ので、たとえば外寸Ｗが５００ｍｍのときに板厚ｔは２
５ｍｍである。また長尺角形鋼管１の板厚ｔと短尺角形
鋼管２の板厚Ｔとは、たとえば１．２５ｔ〜２ｔ≒Ｔと
されている。そして長尺角形鋼管１と短尺角形鋼管２と
は、その外周形状が同一状に形成されている。As shown in FIG. 6, a long rectangular steel pipe (long steel pipe) 1 having a predetermined plate thickness t, a plate thickness T larger than the plate thickness t of the long rectangular steel pipe 1, and a panel zone A short rectangular steel pipe (short steel pipe) 2 having a length (height) L to be formed is prepared. Here, the predetermined plate thickness t is determined by the outer dimension W of the steel pipe column adopted according to the scale of the steel structure, and for example, when the outer dimension W is 500 mm, the plate thickness t is 2
It is 5 mm. The plate thickness t of the long rectangular steel pipe 1 and the plate thickness T of the short rectangular steel pipe 2 are, for example, 1.25t to 2t≈T. The long rectangular steel pipe 1 and the short rectangular steel pipe 2 have the same outer peripheral shape.
【００１７】すなわち通常、外寸が同等状の角形鋼管
（製品角形鋼管）においては、薄い板厚の角形鋼管にお
けるコーナの曲率半径に対して、厚い板厚の角形鋼管に
おけるコーナの曲率半径は大であり、その外周形状は異
なっている。したがって、薄い板厚の角形鋼管と厚い板
厚の角形鋼管とを相当接させて溶接により結合する場
合、外寸が同等状であることから四辺部分の溶接は支障
なく行えるが、コーナ部分の溶接は、曲率半径が異なり
段部が生じていることで好適に行えない。That is, in general, in a square steel pipe having a similar outer dimension (a product square steel pipe), the radius of curvature of the corner of the square steel pipe having a large thickness is larger than the radius of curvature of the corner of the square steel pipe having a thin thickness. The outer peripheral shape is different. Therefore, when square steel pipes with a thin thickness and square steel pipes with a large thickness are brought into close contact with each other and joined by welding, the welding of the four sides can be performed without any problems because the outer dimensions are the same, but the welding of the corners is possible. Cannot be suitably performed because the radius of curvature is different and a step is formed.
【００１８】これに対しては、長尺角形鋼管１と短尺角
形鋼管２との外周形状を同一状に形成するために、図７
に示される厚い板厚Ｔでかつ大きい曲率半径Ｒの半成形
短尺角形鋼管（原鋼管）１０に対して熱間成形を行う。
すなわち、パネルゾーンを形成する長さＬの半成形短尺
角形鋼管１０が加熱手段（加熱炉など）１５において加
熱され、そして成形手段（成形ロール装置など）１６に
おいて熱間成形される。このように外周形状を熱間成形
することにより、長尺角形鋼管１に対して、同様な外寸
Ｗ、同様な曲率半径ｒでありかつ厚い板厚Ｔの短尺角形
鋼管２が得られる。On the other hand, in order to form the long rectangular steel pipe 1 and the short rectangular steel pipe 2 to have the same outer peripheral shape, FIG.
The hot forming is performed on the semi-formed short-length rectangular steel pipe (original steel pipe) 10 having a large plate thickness T and a large radius of curvature R shown in FIG.
That is, a semi-formed short rectangular steel tube 10 having a length L forming a panel zone is heated in a heating means (heating furnace or the like) 15 and hot-formed in a forming means (forming roll device or the like) 16. By hot forming the outer peripheral shape in this manner, a short rectangular steel pipe 2 having a similar outer dimension W, a similar radius of curvature r, and a thick plate thickness T is obtained with respect to the long rectangular steel pipe 1.
【００１９】このような熱間成形を行う前（または行っ
た後）に、前記短尺鋼管２の端部２ａの外側には、図
１、図６に示されるように、前記長尺鋼管１の端部１ａ
が外嵌可能な段部３が形成される。すなわち段部３は、
外面からの入り込み量Ａが所定の板厚ｔと同様の寸法
（２５ｍｍ位）として形成されている。そして段部３
は、その外向き面が端ほど内側の傾斜面３ａに形成さ
れ、端に向く面は開先面３ｂに形成されるとともに、傾
斜面３ａと開先面３ｂとが成す角部が曲面３ｃに形成さ
れている。Before (or after) such hot forming, the long steel pipe 1 is attached to the outside of the end 2a of the short steel pipe 2 as shown in FIGS. End 1a
A step portion 3 is formed which can be fitted to the outside. That is, the step 3 is
The amount A of penetration from the outer surface is formed to have the same dimension (about 25 mm) as the predetermined plate thickness t. And step 3
The outer surface is formed on the inclined surface 3a that is closer to the end, the surface facing the end is formed on the groove surface 3b, and the corner formed by the inclined surface 3a and the groove surface 3b is formed on the curved surface 3c. Has been formed.
【００２０】ここで傾斜面３ａは、その端面からの入り
込み量Ｂは３０〜４０ｍｍ位であり、そして長尺角形鋼
管１の端部１ａが外嵌されたときに、端部１ａの先端と
曲面３ｃとの間に５〜７ｍｍ位の溶接間隔Ｃが生じ、さ
らに傾斜面３ａの先端と長尺角形鋼管１の内面との間に
１〜１．５ｍｍ位の隙間Ｓが生じるように形成されてい
る。また前記開先面３ｂは、所定の開先角度Θ1（たと
えば２５°）に形成されている。そして曲面３ｃは、半
径Ｄが２〜５ｍｍ位のＲとされている。なお、長尺角形
鋼管１の端部１ａには、所定の開先角度Θ2（たとえば
３５°）の開先面１ｂが形成されている。Here, the slanted surface 3a has a penetration amount B from the end surface thereof of about 30 to 40 mm, and when the end portion 1a of the long rectangular steel pipe 1 is externally fitted, the tip end and the curved surface of the end portion 1a. It is formed so that a welding interval C of about 5 to 7 mm is generated between it and 3c, and a gap S of about 1 to 1.5 mm is formed between the tip of the inclined surface 3a and the inner surface of the long rectangular steel pipe 1. There is. The groove surface 3b is formed at a predetermined groove angle Θ 1 (for example, 25 °). The curved surface 3c has an radius R of 2 to 5 mm. A groove surface 1b having a predetermined groove angle Θ 2 (for example, 35 °) is formed at the end 1a of the long rectangular steel pipe 1.
【００２１】上記のように形成された短尺角形鋼管２と
前記長尺角形鋼管１とを、その外周形状を同一状として
直線状に位置させたのち、短尺鋼管２の端部２ａの段部
３に長尺鋼管１の端部１ａを外嵌させる。その際に外嵌
は図１に示されるように、長尺鋼管１の端部１ａの先端
内面が段部３の傾斜面３ａに案内されることで簡単かつ
円滑に行え、そして先端内面が傾斜面３ａの中間に密状
となることで、自動的に同芯状として精度よく行える。
これにより、直線状の方向において溶接間隔Ｃが生じる
とともに、両開先面１ｂ，３ｂによって所定の溶接角度
Θ3（たとえば６０°）が形成される。After the short rectangular steel pipe 2 and the long rectangular steel pipe 1 formed as described above are linearly positioned with the outer peripheral shapes being the same, the step 3 of the end 2a of the short steel pipe 2 is formed. The end portion 1a of the long steel pipe 1 is externally fitted to. At this time, as shown in FIG. 1, the external fitting can be performed easily and smoothly by guiding the inner surface of the end 1a of the long steel pipe 1 to the inclined surface 3a of the step 3, and the inner surface of the end is inclined. By forming a dense shape in the middle of the surface 3a, it can be automatically made concentric and highly accurate.
As a result, a welding interval C is generated in the linear direction, and a predetermined welding angle Θ 3 (for example, 60 °) is formed by the groove surfaces 1b and 3b.
【００２２】この状態で、図１〜図５に示されるよう
に、両開先面１ｂ，３ｂを利用して、短尺角形鋼管２と
長尺角形鋼管１との相対向した端部２ａ，１ａ間を、外
側からの全周に亘っての溶接４により結合することで、
短尺角形鋼管２をパネルゾーンとして角形鋼管柱（鋼管
柱）５を構成し得る。その際に溶接４による結合は、短
尺角形鋼管２の端部２ａを裏当て金に兼用した状態で、
すなわち別個に裏当て金を準備することなく行える。ま
た短尺角形鋼管２側への溶接４は、端部２ａにおける溶
接間隔Ｃ含めて行われる。In this state, as shown in FIGS. 1 to 5, by utilizing both groove faces 1b and 3b, the ends 2a and 1a of the short rectangular steel pipe 2 and the long rectangular steel pipe 1 which are opposed to each other. By joining the spaces by welding 4 from the outside all around,
A rectangular steel pipe pillar (steel pipe pillar) 5 can be configured by using the short rectangular steel pipe 2 as a panel zone. At this time, the connection by welding 4 is performed with the end 2a of the short rectangular steel tube 2 also serving as a backing metal,
That is, it can be performed without preparing a backing metal separately. Further, the welding 4 to the short rectangular steel pipe 2 side is performed including the welding interval C at the end 2a.
【００２３】上記のようにして構成した角形鋼管柱５
は、所定本数が建築現場などに運搬され、そしてパネル
ゾーンを形成する長さＬの短尺角形鋼管２の外面に、梁
フランジまたは梁材６が溶接７によって結合される。な
お角形鋼管柱５は、図２の仮想線に示すように、積上げ
状に配置されたのち、その上下間が溶接４により結合さ
れることで、所定長さ（高さ）に構成される。Square steel tube column 5 constructed as described above
The predetermined number is transported to a construction site or the like, and the beam flange or the beam member 6 is joined by welding 7 to the outer surface of the short rectangular steel pipe 2 having the length L forming the panel zone. The rectangular steel pipe columns 5 are arranged in a stacked shape as shown by the phantom line in FIG. 2 and then joined by a weld 4 between the upper and lower sides thereof to have a predetermined length (height).
【００２４】上述した第１の実施の形態の角形鋼管柱５
によると、短尺鋼管２の端部２ａの段部３に長尺鋼管１
の端部１ａを外嵌させる際に、長尺鋼管１の端部１ａの
先端内面が段部３の傾斜面３ａに案内されることで、そ
の外嵌作業は簡単かつ円滑に行える。そして先端内面が
傾斜面３ａの中間に密状となることで、外嵌は自動的に
同芯状として精度よく行える。The rectangular steel pipe column 5 of the above-described first embodiment
According to the above, the long steel pipe 1 is attached to the step 3 of the end 2a of the short steel pipe 2.
When the end portion 1a of the long steel pipe 1 is externally fitted, the inner surface of the tip of the end portion 1a of the long steel pipe 1 is guided to the inclined surface 3a of the step portion 3, so that the external fitting work can be performed easily and smoothly. Since the inner surface of the tip is dense in the middle of the inclined surface 3a, the outer fitting can be automatically made concentric and accurately performed.
【００２５】さらに、短尺角形鋼管２の両端部２ａにそ
れぞれ長尺角形鋼管１を溶接４により結合することで、
この短尺角形鋼管２によってパネルゾーンを形成し得
る。したがって、裏当て金を不要として部品点数を省略
し得、しかも外側からの二箇所の溶接でよいことから組
立て工数を削減し得るとともに溶接長さは短くなり、以
て全体を簡略化して経済的となり、かつ溶接歪などが生
じ難いものとなる。Further, by joining the long rectangular steel pipes 1 to both ends 2a of the short rectangular steel pipe 2 by welding 4, respectively,
A panel zone can be formed by the short rectangular steel pipe 2. Therefore, the backing metal is unnecessary, the number of parts can be omitted, and since welding from two locations from the outside is sufficient, the number of assembling steps can be reduced and the welding length can be shortened. In addition, welding distortion is less likely to occur.
【００２６】また長尺角形鋼管１と短尺角形鋼管２と
を、その外周形状を同一状（同様な外寸Ｗ、同様な曲率
半径ｒ）として端部１ａ，２ａ間を溶接４により結合す
ることで、その溶接４は十分に強固にかつ綺麗に行え
る。しかも傾斜面３ａと開先面３ｂとが成す角部を曲面
３ｃに形成したことで、この角部では、応力分散を行え
て溶接割れなど生じ難くし得る。Further, the long rectangular steel pipe 1 and the short rectangular steel pipe 2 are connected to each other by welding 4 between the ends 1a and 2a with the same outer peripheral shape (similar outer dimension W, similar curvature radius r). Then, the welding 4 can be performed sufficiently firmly and cleanly. Moreover, by forming the corner portion formed by the inclined surface 3a and the groove surface 3b on the curved surface 3c, stress can be dispersed at this corner portion, and welding cracks can be less likely to occur.
【００２７】さらにパネルゾーンは、短尺角形鋼管２の
予め厚い板厚Ｔによって十分な強度を確保し得、梁フラ
ンジまたは梁材６の溶接７による結合は何ら支障なく行
える。そして角形鋼管柱５はパイプジョイント形式で得
られ、内蔵リブや裏当て金などがない状態に仕上げ得
る。したがって、中にコンクリートなどを充填させる構
成も容易に採用し得る。Further, the panel zone can secure sufficient strength by the thick plate thickness T of the short rectangular steel tube 2 in advance, and the beam flange or the beam member 6 can be joined by welding 7 without any trouble. Then, the rectangular steel pipe column 5 is obtained in a pipe joint form, and can be finished without a built-in rib or a backing plate. Therefore, a structure in which concrete or the like is filled can be easily adopted.
【００２８】上述した第１の実施の形態において、長尺
角形鋼管１は、冷間成形したもの、熱間成形したものな
ど、いずれであってもよい。また、厚い板厚Ｔでかつ大
きい曲率半径Ｒの半成形短尺角形鋼管１０の外周形状を
熱間成形することにより、長尺角形鋼管１に対して、同
様な外寸、同様な曲率半径ｒでありかつ厚い板厚Ｔの短
尺角形鋼管２を、簡単かつ安価にして得ることができ
る。そして短尺角形鋼管２と長尺角形鋼管１とは、その
外周形状を同一状として端部１ａ，２ａ間を溶接４によ
り結合することで、その溶接４による結合は十分に強固
にかつ綺麗に行うことができる。In the above-described first embodiment, the long rectangular steel pipe 1 may be either cold-formed or hot-formed. Further, by hot forming the outer peripheral shape of the semi-formed short rectangular steel tube 10 having a large plate thickness T and a large radius of curvature R, the long rectangular steel tube 1 has the same outer dimensions and the same radius of curvature r. It is possible to easily and inexpensively obtain the short rectangular steel pipe 2 having a thick plate thickness T. Then, the short rectangular steel pipe 2 and the long rectangular steel pipe 1 have the same outer peripheral shape and have their ends 1a and 2a joined by welding 4, so that the joining by the welding 4 is sufficiently strong and clean. be able to.
【００２９】次に、本発明の第２の実施の形態を、図８
に基づいて説明する。すなわち、短尺角形鋼管２の端部
２ａの内面が、端ほど外側の傾斜面２ｂに形成されてい
る。この構成によると、溶接４により結合を施工する際
に裏当て金に兼用される短尺角形鋼管２の端部２ａの板
厚を、両傾斜面３ａ，２ｂによって端窄まり状に形成し
得ることで、溶接４による結合を行って短尺角形鋼管２
と長尺角形鋼管１を一体化したとき、応力の伝達をスム
ースに行える。Next, a second embodiment of the present invention will be described with reference to FIG.
It will be described based on. That is, the inner surface of the end portion 2a of the short rectangular steel pipe 2 is formed as an inclined surface 2b that is outwardly closer to the end. According to this configuration, the plate thickness of the end portion 2a of the short rectangular steel tube 2 which is also used as the backing metal when the connection is made by the welding 4 can be formed in a constricted shape by the both inclined surfaces 3a and 2b. Then, the short rectangular steel pipe 2 is connected by welding 4.
When the and the long rectangular steel pipes 1 are integrated, the stress can be transmitted smoothly.
【００３０】次に、本発明の第３の実施の形態を、図９
に基づいて説明する。すなわち、所定の板厚ｔの長尺丸
形鋼管（長尺鋼管）１Ａと、この長尺丸形鋼管１Ａの板
厚ｔよりも厚い板厚Ｔでかつパネルゾーンを形成する長
さ（高さ）Ｌの短尺丸形鋼管（短尺鋼管）２Ａとからな
る。そして、長尺丸形鋼管１Ａと短尺丸形鋼管２Ａとの
端部１ａ，２ａ間を、前述した第１の実施の形態、また
は第２の実施の形態の形式によって、溶接４により結合
することで、短尺丸形鋼管２Ａをパネルゾーンとして丸
形鋼管柱（鋼管柱）５Ａを構成し得る。Next, a third embodiment of the present invention will be described with reference to FIG.
It will be described based on. That is, a long round steel pipe (long steel pipe) 1A having a predetermined plate thickness t, and a length (height that is thicker than the plate thickness t of the long round steel pipe 1A and forms a panel zone). ) L short round steel pipe (short steel pipe) 2A. Then, the long round steel pipe 1A and the short round steel pipe 2A are joined by welding 4 between the end portions 1a, 2a according to the form of the first embodiment or the second embodiment described above. Thus, the round steel pipe column (steel pipe column) 5A can be configured by using the short round steel pipe 2A as a panel zone.
【００３１】なお、丸形鋼管（製品丸形鋼管）は、その
外寸（径）は種々あるが、同一の外寸のものは板厚に関
係なく外周形状が同一状である。したがって第３の実施
の形態によると、厚い板厚Ｔの短尺丸形鋼管２Ａは熱間
成形などを行うことなく、長尺丸形鋼管１Ａと、その外
周形状が同一状に形成されることになる。The round steel pipe (product round steel pipe) has various outer dimensions (diameters), but those having the same outer dimensions have the same outer peripheral shape regardless of the plate thickness. Therefore, according to the third embodiment, the short round steel pipe 2A having a thick plate thickness T is formed to have the same outer peripheral shape as the long round steel pipe 1A without performing hot forming or the like. Become.
【００３２】上記した各実施の形態において、鋼管とし
ては、たとえば、ロール成形によるワンシーム角形鋼
管、プレス成形による一対のみぞ型材を向き合わせて突
き合わせ溶接したツーシーム角形鋼管、一対の圧延みぞ
型材を溶接してなるツーシーム角形鋼管、圧延山型材を
一対、向き合わせて溶接したツーシーム角形鋼管、四面
ボックス、シームレス鋼管など、いずれも既製の鋼管が
使用される。In each of the above-described embodiments, as the steel pipe, for example, a one-seam square steel pipe formed by roll forming, a two-seam square steel pipe formed by butting and welding a pair of groove type members formed by press forming, and a pair of rolled groove type members are welded. Two-seam rectangular steel pipes, a pair of rolled chevron members, two-seam rectangular steel pipes welded face to face, four-sided box, seamless steel pipes, etc. are all ready-made steel pipes.
【００３３】上記した実施の形態では、角形鋼管として
断面で正四角形状の鋼管を採用しているが、これは断面
で長方形の鋼管も同様に採用し得るものである。さらに
は、正五角形や正六角形など、各種の多角形の鋼管にも
同様に採用し得るものである。In the above embodiment, a square steel pipe having a square cross section is used as the square steel pipe, but a rectangular steel pipe having a cross section can also be used. Further, it can be similarly applied to various polygonal steel pipes such as regular pentagon and regular hexagon.
【００３４】上記した各実施の形態では、エレクトロス
ラグ溶接機やエレクトロガスアーク溶接機による溶接で
あり、これによると、短時間で高品質の溶接を行うこと
ができる。なお、レーザなど他の溶接方式であってもよ
い。In each of the above-mentioned embodiments, the welding is performed by the electroslag welding machine or the electrogas arc welding machine. According to this, high quality welding can be performed in a short time. Other welding methods such as laser may be used.
【００３５】[0035]
【発明の効果】上記した本発明の請求項１によると、短
尺鋼管の端部の段部に長尺鋼管の端部を外嵌させる際
に、長尺鋼管の端部の先端内面を段部の傾斜面により案
内することで、その外嵌作業は簡単かつ円滑に行うこと
ができる。そして先端内面が傾斜面の中間において密状
となることで、外嵌は自動的に同芯状として精度よく行
うことができる。According to claim 1 of the present invention described above, when the end of the long steel pipe is externally fitted to the step of the end of the short steel pipe, the inner surface of the tip of the end of the long steel pipe is stepped. The outer fitting work can be performed easily and smoothly by guiding the inclined surface. Since the inner surface of the tip is dense in the middle of the inclined surface, the outer fitting can be automatically performed concentrically and accurately.
【００３６】さらに、短尺鋼管の端部の段部に長尺鋼管
の端部を外嵌させたのち、両開先面を利用して、相対向
した端部間を外側からの全周に亘っての溶接により結合
することで、短尺鋼管をパネルゾーンとして鋼管柱を構
成できる。その際に溶接による結合は、短尺鋼管の端部
を裏当て金に兼用した状態で、すなわち別個に裏当て金
を準備することなく行うことができて部品点数を省略で
き、しかも、外側からの溶接のみでよいことから、組立
て工数を削減できるとともに溶接長さを短くでき、以て
全体を簡略化して経済的となり、かつ溶接歪などが生じ
難いものにできる。Further, after the end portion of the long steel pipe is externally fitted to the step portion of the end portion of the short steel pipe, both groove faces are utilized to cover the opposite ends over the entire circumference from the outside. By joining them by welding, it is possible to construct a steel pipe column by using a short steel pipe as a panel zone. At this time, the connection by welding can be performed with the end of the short steel pipe also used as the backing metal, that is, without separately preparing the backing metal, and the number of parts can be omitted. Since only welding is required, the number of assembling steps can be reduced, and the welding length can be shortened. As a result, the entire structure can be simplified and made economical, and welding distortion and the like are less likely to occur.
【００３７】そして熱間成形することにより、長尺鋼管
に対して外周形状を同一状としかつ厚い板厚の短尺鋼管
を、簡単かつ安価にして得ることができ、さらに長尺鋼
管と短尺鋼管との端部間を溶接により結合することで、
その溶接による結合は十分に強固にかつ綺麗に行うこと
ができる。しかも傾斜面と開先面とが成す角部を曲面に
形成したことで、この角部では応力分散を行えて溶接割
れなど生じ難くできる。さらにパネルゾーンは、短尺鋼
管の予め厚い板厚によって十分な強度を確保でき、梁材
の溶接による結合は何ら支障なく行うことができる。し
かも角形鋼管柱はパイプジョイント形式で得られ、内蔵
リブや裏当て金などがない状態に仕上げることができ
て、中にコンクリートなどを充填させる構成も容易に採
用できる。 By hot forming, a long steel pipe
A short steel pipe with the same outer peripheral shape and a thick plate thickness
Can be obtained easily and inexpensively, and by further joining the ends of the long steel pipe and the short steel pipe by welding,
The connection by welding can be performed sufficiently firmly and neatly. Moreover, since the corner portion formed by the inclined surface and the groove surface is formed as a curved surface, stress can be dispersed at this corner portion, and welding cracks can be less likely to occur. Further, the panel zone can secure sufficient strength by the preliminarily thick plate thickness of the short steel pipe, and the beam members can be joined by welding without any trouble. Moreover, the prismatic steel column is obtained in the form of a pipe joint, and it can be finished without built-in ribs and backing metal, and it is easy to adopt a configuration in which concrete is filled inside.
【００３８】また上記した本発明の請求項２によると、
溶接により結合を施工する際に裏当て金に兼用される短
尺鋼管の端部の板厚を、両傾斜面によって端窄まり状に
形成できることで、溶接による結合を行って短尺鋼管と
長尺鋼管を一体化したとき、応力の伝達をスムースに行
うことができる。According to claim 2 of the present invention described above,
Since the plate thickness of the end of the short steel pipe that is also used as the backing metal when the connection is made by welding can be formed in a constricted shape by both inclined surfaces, the short steel pipe and the long steel pipe can be joined by welding. When they are integrated, the stress can be transmitted smoothly.
【図１】本発明の第１の実施の形態を示し、鋼管柱の要
部拡大の縦断正面図である。FIG. 1 shows a first embodiment of the present invention and is a vertical cross-sectional front view of an enlarged main part of a steel pipe column.
【図２】同鋼管柱の縦断正面図である。FIG. 2 is a vertical sectional front view of the steel pipe column.
【図３】同鋼管柱の一部切り欠き斜視図である。FIG. 3 is a partially cutaway perspective view of the steel pipe column.
【図４】同鋼管柱の要部の縦断正面図である。FIG. 4 is a vertical sectional front view of a main part of the steel pipe column.
【図５】同鋼管柱の横断平面図である。FIG. 5 is a cross-sectional plan view of the steel pipe column.
【図６】同鋼管柱の溶接結合前の一部切り欠き斜視図で
ある。FIG. 6 is a partially cutaway perspective view of the steel pipe column before welding and joining.
【図７】同鋼管柱における短尺角形鋼管の熱間成形の説
明図である。FIG. 7 is an explanatory view of hot forming of a short rectangular steel pipe in the same steel pipe column.
【図８】本発明の第２の実施の形態を示し、鋼管柱の要
部拡大の縦断正面図である。FIG. 8 shows a second embodiment of the present invention, and is a vertical cross-sectional front view of an enlarged main part of a steel pipe column.
【図９】本発明の第３の実施の形態を示し、鋼管柱の横
断平面図である。FIG. 9 shows a third embodiment of the present invention and is a cross-sectional plan view of a steel pipe column.
【図１０】従来例を示し、鋼管柱の一部切り欠き斜視図
である。FIG. 10 is a partially cutaway perspective view of a steel pipe column showing a conventional example.
【図１１】別の従来例を示し、鋼管柱の一部切り欠き斜
視図である。FIG. 11 is a partially cutaway perspective view of a steel pipe column showing another conventional example.
１ 長尺角形鋼管（長尺鋼管） １Ａ 長尺丸形鋼管（長尺鋼管） １ａ 端部 １ｂ 開先面 ２ 短尺角形鋼管（短尺鋼管） ２Ａ 短尺丸形鋼管（短尺鋼管） ２ａ 端部 ２ｂ 傾斜面 ３ 段部 ３ａ 傾斜面 ３ｂ 開先面 ３ｃ 曲面 ４ 溶接 ５ 角形鋼管柱（鋼管柱） ５Ａ 丸形鋼管柱（鋼管柱） ６ 梁フランジまたは梁材 Ａ 入り込み量 Ｂ 傾斜面３ａの入り込み量 Ｃ 溶接間隔 Ｄ 曲面３ｃの半径 Ｓ 隙間 ｔ 長尺鋼管の板厚 Ｔ 短尺鋼管の板厚 Ｌ パネルゾーンを形成する長さ Ｗ 鋼管柱の外寸 ｒ 鋼管柱の曲率半径 Θ1 開先角度 Θ2 開先角度 Θ3 溶接角度1 Long Square Steel Pipe (Long Steel Pipe) 1A Long Round Steel Pipe (Long Steel Pipe) 1a End 1b Groove Surface 2 Short Square Steel Pipe (Short Steel Pipe) 2A Short Round Steel Pipe (Short Steel Pipe) 2a End 2b Inclined Surface 3 Step 3a Sloping surface 3b Groove surface 3c Curved surface 4 Welding 5 Square steel pipe column (steel pipe column) 5A Round steel pipe column (steel pipe column) 6 Beam flange or beam A Entry amount B Inclined face 3a entry amount C Welding Interval D Radius S of curved surface 3c Gap t Thickness of long steel pipe T Thickness of short steel pipe L Length to form panel zone W Outer dimension of steel pipe column r Curvature radius of steel pipe column Θ 1 groove angle Θ 2 groove Angle Θ 3 Welding angle
フロントページの続き (72)発明者 中島 教雄 大阪府大阪市淀川区加島３丁目10番111 号 ナカジマ鋼管株式会社内 (56)参考文献 特開 平６−307013（ＪＰ，Ａ) 特開 平８−189083（ＪＰ，Ａ) 実開 昭61−184004（ＪＰ，Ｕ) 実開 昭56−157201（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 1/24 B23K 9/00 B23K 9/028 E04B 1/58 Front page continuation (72) Inventor Norio Nakajima 3-10-11 Kashima, Yodogawa-ku, Osaka City, Osaka Prefecture Nakajima Steel Pipe Co., Ltd. (56) Reference JP-A-6-307013 (JP, A) JP-A-8- 189083 (JP, A) Actually open 61-184004 (JP, U) Actually open 56-157201 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) E04B 1/24 B23K 9 / 00 B23K 9/028 E04B 1/58
Claims (2)
よりも板厚が厚くかつパネルゾーンを形成する長さの短
尺鋼管とからなり、これら長尺鋼管と短尺鋼管とは、短
尺鋼管を熱間成形して得たことにより、その外周形状を
同一状に形成されており、前記短尺鋼管の端部の外側に
は、前記長尺鋼管の端部が外嵌可能な段部が形成され、
この段部は、その外向き面が端ほど内側の傾斜面に形成
され、端に向く面は開先面に形成されるとともに、傾斜
面と開先面とが成す角部が曲面に形成され、前記長尺鋼
管の端部は開先面に形成され、端部間を嵌合させたのち
両開先面間を外側からの溶接により結合して構成されて
いることを特徴とする鋼管柱。1. A long steel pipe having a predetermined plate thickness and a short steel pipe having a plate thickness thicker than the long steel pipe and having a length forming a panel zone. The long steel pipe and the short steel pipe are Short
The length of the long steel pipe is obtained by hot forming, so that the outer peripheral shape of the short steel pipe is formed in the same shape. Is formed,
The outer surface of the step portion is formed to be an inward inclined surface toward the end, the surface facing the end is formed to be a groove surface, and the corner portion formed by the inclined surface and the groove surface is formed to be a curved surface. The steel pipe column is characterized in that the ends of the long steel pipe are formed on a grooved surface, and the ends are fitted to each other and then the two grooved surfaces are joined by welding from the outside. .
傾斜面に形成されていることを特徴とする請求項１記載
の鋼管柱。2. The steel pipe column according to claim 1, wherein the inner surface of the end portion of the short steel pipe is formed to be an inclined surface which is closer to the end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001104013A JP3529360B2 (en) | 2001-04-03 | 2001-04-03 | Steel pipe column |
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| Publication Number | Publication Date |
|---|---|
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| JP3529360B2 true JP3529360B2 (en) | 2004-05-24 |
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|---|---|---|---|
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| JP (1) | JP3529360B2 (en) |
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