JP3095843B2 - Manufacturing method of circular steel pipe column - Google Patents
Manufacturing method of circular steel pipe columnInfo
- Publication number
- JP3095843B2 JP3095843B2 JP03348288A JP34828891A JP3095843B2 JP 3095843 B2 JP3095843 B2 JP 3095843B2 JP 03348288 A JP03348288 A JP 03348288A JP 34828891 A JP34828891 A JP 34828891A JP 3095843 B2 JP3095843 B2 JP 3095843B2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- flange
- welding
- flanges
- unit
- 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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- Butt Welding And Welding Of Specific Article (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、大規模な重層鉄骨工
作物（以下、工作物と略称する）等の柱材として使用さ
れる円形鋼管柱の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a circular steel pipe column used as a column material for a large-scale multi-story steel structure (hereinafter, simply referred to as a work).
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】この
種円形鋼管柱は、ビルの高層化、地下工作物の大規模化
の中でその生産量が年々増大するとともに、その形態、
構造についても種々のものが開発され実用に供せられて
いる。2. Description of the Related Art With the increase in the height of buildings and the scale of underground works, the production of such circular steel tubular columns has been increasing year by year,
Various structures have been developed and put to practical use.
【０００３】図５は比較的初期の頃から採用されていた
もので、鋼管の軸方向からその仕口部を見た構造を示
す。図において、１は円形鋼管柱、２は梁３との接合用
のフランジで、４個のフランジ片２ａ，２ｂ，２ｃ，２
ｄからなる。そして、円形鋼管柱１の外周を覆うよう
に、これら４個のフランジ片２ａ〜２ｄを配設し、鋼管
柱１との間およびフランジ片相互間を溶接により接合し
て一体の仕口部を形成する。[0003] Fig. 5 shows a structure which has been adopted from a relatively early stage, and shows a connection portion of a steel pipe from the axial direction. In the figure, 1 is a circular steel pipe column, 2 is a flange for joining to a beam 3, and four flange pieces 2a, 2b, 2c, 2
d. Then, these four flange pieces 2a to 2d are arranged so as to cover the outer periphery of the circular steel pipe column 1, and the joint between the steel pipe column 1 and the flange pieces is welded to form an integral joint. Form.
【０００４】即ち、これら工作物に適用される鋼管柱の
仕口部にはそのラーメン構造設計上、柱と梁との連続性
を確保するための機械的剛性および柱あるいは梁の全強
伝達を確保するための機械的強度が要求される。このた
め、図５に示すものでは、各部を溶接接合による連続一
体の構造として、フランジ２を介して集中的に加わる力
によって発生する鋼管柱１の面外変形を抑制するととも
に過大な応力集中部を作らない構造としている。しか
し、このタイプのものは、溶接で一体とすべき構成部材
の点数が多く、かつその形状も複雑となることから極め
て高度な加工精度が要請され、梁の取付も必ずしも容易
でなく、接合可能な梁の形状にも制約が多くなる。更
に、フランジ片相互間の溶接部Ｗ（図５）を中心に一定
量の応力集中が避けられないという欠点もある。[0004] That is, due to the design of the rigid frame structure, the rigidity of the connection between the steel pipe column applied to these workpieces and the mechanical rigidity for ensuring the continuity between the column and the beam and the full strength transmission of the column or the beam. Mechanical strength is required to ensure this. For this reason, in the structure shown in FIG. 5, each part is formed as a continuous and integral structure by welding, so that the out-of-plane deformation of the steel pipe column 1 generated by the force intensively applied via the flange 2 is suppressed and the excessive stress concentration part is formed. The structure is not made. However, this type requires a very high degree of processing accuracy because the number of components to be integrated by welding is large and the shape is complicated, and beam attachment is not always easy, and joining is possible. There are many restrictions on the shape of the beam. Furthermore, there is a disadvantage that a certain amount of stress concentration cannot be avoided around the welded portion W (FIG. 5) between the flange pieces.
【０００５】図６は特にフランジ部分の構造を簡略化す
るため、図５のものとは反対に、鋼管柱１側を１ａ，１
ｂ，１ｃと分断するタイプのものを示す。この場合、上
述した要求性能は比較的容易に満足し得るが、柱を分断
するため溶接量が過大になり、かつ溶接継目品質の確保
と上下柱の直線性の確保のため細部の管理が必要になる
という欠点がある。[0005] Fig. 6 is a view opposite to that of Fig. 5 in order to simplify the structure of the flange portion, in particular, the steel pipe column 1 side is denoted by 1a, 1a.
b and 1c are shown. In this case, the performance requirements described above can be satisfied relatively easily, but the amount of welding is excessive due to the separation of the columns, and detailed management is necessary to ensure the quality of the weld seam and the linearity of the upper and lower columns. Disadvantage.
【０００６】以上のものに対し、図７，図８に示すもの
は、柱とフランジとを当初から一体物で構成するもので
ある。先ず、図７のものは、いずれも鋳造法で製造され
るフランジ管４と直管５とを図に示すように、各端部を
溶接により接合して長尺の円形鋼管柱１に仕上げるもの
である。図中、Ｗはこの溶接部を示す。そして、フラン
ジ管４にはフランジ部４ａが形成されており、梁３との
接合はこのフランジ部４ａの部分と溶接することにより
行われる。また、図中、Ｈ１は梁３の高さ方向中心位置
の間隔で、工作物の１層分の高さ（階高）に相当し、Ｈ
２は梁３の上フランジに接合されるフランジ部４ａと下
フランジに接合されるフランジ部４ａとの間隔で、梁３
の高さ（接合部パネルの高さ）に相当する。In contrast to the above, FIGS. 7 and 8 show a structure in which the column and the flange are integrally formed from the beginning. First, as shown in FIG. 7, the flanged pipe 4 and the straight pipe 5 which are manufactured by a casting method are joined at their respective ends by welding to finish the long circular steel pipe column 1. It is. In the drawing, W indicates this welded portion. The flange tube 4 is formed with a flange portion 4a, and the connection with the beam 3 is performed by welding with the flange portion 4a. In the drawing, H1 is the distance between the center positions of the beams 3 in the height direction, and corresponds to the height (floor height) of one layer of the workpiece.
Reference numeral 2 denotes a distance between a flange portion 4a joined to the upper flange of the beam 3 and a flange portion 4a joined to the lower flange.
(The height of the joint panel).
【０００７】図８は従来の更に異なる種類の円形鋼管柱
１を部分的に示す構成図で、ここでは、梁３との接合を
行うフランジ部分には鍛造品からなるリング６を採用し
ている。そして、長尺の直管７と接合部パネルの高さか
らリング６の高さを差し引いた長さの短尺の直管８との
間にこのリング６を挿入する形で順次溶接により接合し
て円形鋼管柱１に仕上げるものである。Ｗは図７と同
様、溶接部を示す。FIG. 8 is a structural view partially showing a conventional circular steel pipe column 1 of a still different type. In this case, a ring 6 made of a forged product is employed for a flange portion for joining with a beam 3. . The ring 6 is sequentially joined by welding in such a manner that the ring 6 is inserted between the long straight pipe 7 and the short straight pipe 8 having a length obtained by subtracting the height of the ring 6 from the height of the joint panel. It is to be finished into a circular steel pipe column 1. W indicates a welded portion as in FIG.
【０００８】図７，図８で示したものは、いずれもラー
メン骨組の柱・梁接合部に要求される剛性強度を確保す
るために、特殊な形状の鋳造品あるいは鍛造品を用い、
溶接組立することで仕口部を連続一体の構造にしてい
る。この結果、これら仕口部を構成する部材であるフラ
ンジ管４やリング６の製造コストが極めて高くなるとと
もに、溶接部を完全溶け込み溶接にする必要があるた
め、全体として高価格になるという問題点があった。FIGS. 7 and 8 use a cast or forged product having a special shape in order to secure the rigidity required for the column / beam joint of the rigid frame.
By welding and assembling, the connection part has a continuous and integral structure. As a result, the manufacturing cost of the flange tube 4 and the ring 6 which are members constituting these connection portions becomes extremely high, and the welding portion needs to be completely penetration-welded, so that the overall cost becomes high. was there.
【０００９】この発明は以上のような従来のものの問題
点を解消するためになされたもので、鋼管と完全一体環
状の、即ちリング状の、フランジとを溶接で一体化する
という簡単な構成でしかもその加工内容が極めて簡便と
なる円形鋼管柱の製造方法を実現せんとするものであ
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and has a simple structure in which a steel pipe and a ring-shaped flange, that is, a ring-shaped flange, are integrated by welding. Moreover, it is an object of the present invention to realize a method for manufacturing a circular steel pipe column whose processing contents are extremely simple.
【００１０】[0010]
【課題を解決するための手段および作用】この発明に係
る円形鋼管柱の製造方法は、鋼管として、その外径がフ
ランジとの溶接に必要な所定寸法精度に仕上げるための
仕上げしろを含めた寸法のものを素材として用意し、上
記フランジとして、その内径が上記鋼管との溶接に必要
な所定寸法精度に仕上げたものを用意し、上記鋼管の両
端から上記フランジの取付位置までのいずれか一方の外
周部分のみを上記所定寸法精度に仕上げ加工した後、上
記フランジを鋼管の上記仕上げ加工を施した方の端部か
ら取付位置まで嵌入し、上記鋼管とフランジとを溶接す
るものである。この場合、リング状のフランジを鋼管に
嵌入して溶接する際に必要となる鋼管外周の機械加工範
囲が僅かで済む。According to the method of manufacturing a circular steel pipe column according to the present invention, a steel pipe having an outer diameter including a finishing margin for finishing to a predetermined dimensional accuracy required for welding to a flange. The material is prepared as a material, and as the flange, a material whose inner diameter is finished to a predetermined dimensional accuracy necessary for welding with the steel pipe is prepared, and one of the flanges from both ends to the mounting position of the flange is prepared. After finishing only the outer peripheral portion to the predetermined dimensional accuracy, the flange is fitted from the end of the steel pipe subjected to the finishing processing to a mounting position, and the steel pipe and the flange are welded. In this case, when the ring-shaped flange is fitted into the steel pipe and welded, the required machining range of the outer periphery of the steel pipe is small.
【００１１】また、上述した方法で製造したフランジ付
鋼管を複数本同軸上に配置し、各端部同士を溶接して長
尺の鋼管柱に仕上げるようにすれば、機械加工範囲が少
なく、しかも溶接部所を増やすことなく長尺の円形鋼管
柱が得られる。Further, if a plurality of flanged steel pipes manufactured by the above-described method are arranged coaxially and each end is welded to finish a long steel pipe column, the machining range is small, and moreover, A long circular steel pipe column can be obtained without increasing the number of welds.
【００１２】更に、重層工作物の１層分の高さに相当す
る長さの単位鋼管に、その両端から梁高さに相当する寸
法のほぼ１／２の位置に一対のフランジを上述した方法
で一体に取付けて単位鋼管柱を製造し、しかる後、必要
数の上記単位鋼管柱を同軸上に配置し、各端部同士を溶
接して所定長の鋼管柱に仕上げるようにすれば、必要な
機械加工範囲がより一層減少する。Further, a pair of flanges are provided on a unit steel pipe having a length corresponding to the height of one layer of a multi-layered workpiece, at a position approximately one half of a dimension corresponding to a beam height from both ends thereof. It is necessary if the unit steel pipe columns are manufactured by attaching them together in a unit, and then the required number of the above-mentioned unit steel pipe columns are arranged coaxially, and each end is welded to finish it into a steel pipe column of a predetermined length. Machining range is further reduced.
【００１３】また、１組のフランジの取付けに必要な長
さを有する単位鋼管を用意し、上記単位鋼管の外径を上
記フランジとの溶接に必要な所定寸法精度に仕上げ加工
した後、その内径が上記単位鋼管との溶接に必要な所定
寸法精度に仕上げた１組のフランジを上記単位鋼管の所
定の取付位置まで嵌入し、上記単位鋼管と１組のフラン
ジとを溶接して第１の単位鋼管柱を製造し、この第１の
単位鋼管柱の長さとの和が上記重層工作物の１層分の高
さに相当する長さとなる長さを有し上記フランジを取付
けない第２の単位鋼管柱を用意し、しかる後、必要数の
上記第１および第２の単位鋼管柱を交互に同軸上に配置
し、各端部同士を溶接して所定長の鋼管柱に仕上げるよ
うにしてもよい。この場合、外周の機械加工を行う第１
の単位鋼管柱はそれ自体の長さが短いので、機械加工範
囲が減少するとともにその加工およびフランジとの溶接
作業も簡便となる。Further, a unit steel pipe having a length required for mounting a set of flanges is prepared, and the outer diameter of the unit steel pipe is finished to a predetermined dimensional accuracy required for welding with the flange, and then the inner diameter is formed. Inserts a set of flanges finished to a predetermined dimensional accuracy necessary for welding with the unit steel pipe to a predetermined mounting position of the unit steel pipe, and welds the unit steel pipe to the set of flanges to form a first unit. A second unit for manufacturing a steel pipe column, wherein the sum of the length of the first unit and the length of the steel column is equal to the height of one layer of the multi-layered workpiece, and the second unit not having the flange attached thereto. A steel pipe column is prepared, and thereafter, a required number of the first and second unit steel pipe columns are alternately and coaxially arranged, and each end is welded to finish a steel pipe column of a predetermined length. Good. In this case, the first machining of the outer periphery is performed.
Since the length of the unit steel pipe column itself is short, the machining range is reduced, and the processing and welding work with the flange are simplified.
【００１４】更に、上記第１の単位鋼管柱を製造する場
合の機械加工範囲を、記述したように、鋼管の両端から
各フランジの取付位置までのいずれか一方のみに限定す
るようにすれば、必要な機械加工範囲がより一層減少す
る。Further, as described above, the machining range in the case of manufacturing the first unit steel pipe column is limited to only one of from both ends of the steel pipe to the mounting position of each flange. The required machining area is further reduced.
【００１５】[0015]
【実施例】図１はこの発明の一実施例による円形鋼管柱
の製造方法を説明するための構成図で、ここでは工作物
の必要層数分を担う円形鋼管柱を製造する場合を示す。
先ず、素材として工作物の１層分の高さ（階高）に相当
する長さＨ１の単位鋼管１０ａを用意する（図１
（１））。ここで、単位鋼管１０ａには、その外径が、
後述するフランジ１１との溶接に必要な所定寸法精度に
仕上げるための仕上げしろを含めた寸法とする。即ち、
単位鋼管１０ａの素材としての外径をＤ0、仕上げ後の
外径をＤ1、仕上げしろをＳとすると、Ｄ0＝Ｄ1＋２Ｓ
の関係が成立する。FIG. 1 is a block diagram for explaining a method of manufacturing a circular steel pipe column according to an embodiment of the present invention. Here, a case of manufacturing a circular steel pipe column which bears a required number of layers of a workpiece is shown.
First, a unit steel pipe 10a having a length H1 corresponding to the height (floor height) of one layer of a workpiece is prepared as a material (FIG. 1).
(1)). Here, the outer diameter of the unit steel pipe 10a is
The dimensions include a finishing margin for finishing to a predetermined dimensional accuracy required for welding to a flange 11 described later. That is,
Assuming that the outer diameter of the unit steel pipe 10a as a material is D 0 , the outer diameter after finishing is D 1 , and the finishing margin is S, D 0 = D 1 + 2S
Is established.
【００１６】次にこの単位鋼管１０ａの外周を機械加工
する訳であるが、図１（１）に示すように、加工範囲は
単位鋼管１０ａの両端からそれぞれ接合部パネルの高さ
に相当する寸法Ｈ２の１／２の部分のみである。勿論、
厳密にはこの寸法にはフランジ１１の厚さ分を含む。以
上により、単位鋼管１０ａの未加工部分の外径はＤ0，
加工済分の外径はＤ1となる。次に、その内径が単位鋼
管１０ａとの溶接に必要な所定寸法精度に仕上げられた
完全一体環状、即ちリング状の一対のフランジ１１Ａお
よび１１Ｂ（図１（４））を用意し、図１（２）に示す
ように、その一方のフランジ１１Ａは単位鋼管１０ａの
左方端から所定の取付位置まで、また他方のフランジ１
１Ｂは単位鋼管１０ａの右方端から所定の取付位置まで
それぞれ嵌入する。この嵌入範囲においては、単位鋼管
１０ａの外周は機械加工により必要な寸法精度に仕上げ
られているので、円滑な嵌入が可能で、かつ嵌入のため
にフランジ１１を移動させる距離もわずかで済むので、
作業内容も簡便で短時間で終了する。Next, the outer periphery of the unit steel pipe 10a is machined. As shown in FIG. 1A, the working range is a size corresponding to the height of the joint panel from both ends of the unit steel pipe 10a. Only half of H2. Of course,
Strictly, this dimension includes the thickness of the flange 11. As described above, the outer diameter of the unprocessed portion of the unit steel pipe 10a is D 0 ,
The outer diameter of the processed content becomes D 1. Next, a pair of completely integrated annular, ie, ring-shaped flanges 11A and 11B (FIG. 1 (4)) whose inner diameter is finished to a predetermined dimensional accuracy necessary for welding to the unit steel pipe 10a is prepared, and FIG. As shown in 2), one flange 11A extends from the left end of the unit steel pipe 10a to a predetermined mounting position, and the other flange 11A extends.
1B is fitted from the right end of the unit steel pipe 10a to a predetermined mounting position. In this fitting range, the outer circumference of the unit steel pipe 10a is finished to the required dimensional accuracy by machining, so that a smooth fitting is possible, and the distance for moving the flange 11 for fitting is small, so that
Work contents are simple and completed in a short time.
【００１７】次に、適当な治具を使用してフランジ１１
を単位鋼管１０ａ上から保持した状態で、自動溶接機に
よりフランジ１１と単位鋼管１０ａとの溶接をフランジ
１１の両面から全周にわたって行う。フランジと鋼管と
の溶接すべき端面が完全な円周面を形成しており、しか
も両面が必要な寸法精度に仕上げられているので、自動
溶接機の適用が可能で、高能率で良品質の溶接が得られ
る。なおこの場合、フランジ１１Ａと１１Ｂとを同時に
溶接するようにすれば、自動溶接機は大規模となるが、
作業効率は更に増大する。勿論、フランジ１１Ａと１１
Ｂとを順次溶接していくようにしてもよい。以上によ
り、単位鋼管柱１０が出来上がる（図１（２））。Next, using a suitable jig, the flange 11
Is held from above the unit steel pipe 10a, welding of the flange 11 and the unit steel pipe 10a is performed from both sides of the flange 11 over the entire circumference by an automatic welding machine. The end surface to be welded between the flange and the steel pipe forms a complete circumferential surface, and both surfaces are finished to the required dimensional accuracy, so that an automatic welding machine can be applied and high efficiency and high quality Welding is obtained. In this case, if the flanges 11A and 11B are simultaneously welded, the automatic welding machine becomes large-scale,
Work efficiency is further increased. Of course, the flanges 11A and 11A
B may be sequentially welded. Thus, the unit steel pipe column 10 is completed (FIG. 1 (2)).
【００１８】最後に、図１（３）に示すように、必要数
の単位鋼管柱１０を同軸上に配置し、各端部同士を溶接
して所定長の円形鋼管柱１２に仕上げる。図中Ｗは溶接
部を示す。なお、通常は、単位鋼管柱１０の形態で鋼管
メーカから建設現場に搬入され、単位鋼管柱１０同士の
溶接は建設現場で行われる。Finally, as shown in FIG. 1 (3), a required number of unit steel pipe columns 10 are arranged coaxially, and the respective ends are welded to finish a circular steel pipe column 12 of a predetermined length. In the figure, W indicates a welded portion. Usually, the steel pipe columns 10 are transported from a steel pipe maker to a construction site in the form of unit steel pipe columns 10, and the unit steel pipe columns 10 are welded at the construction site.
【００１９】単位鋼管１０ａ自体、かなりの長尺物であ
るが、以上の方法によれば、その外周の機械加工は極め
て少ない範囲に施せば足り、加工費、加工時間の大幅な
短縮が実現する。また、加工範囲がわずかであることか
ら、仕上げしろＳが若干増大しても製品コストへの影響
は比較的少ない。従って、素材としての単位鋼管１０ａ
自体の製造、即ち、平板材から鋼管への加工段階におけ
る特にその外径寸法精度を緩和して単位鋼管１０ａのコ
ストを引き下げることも可能となる。Although the unit steel tube 10a itself is a considerably long object, according to the above-mentioned method, it is sufficient to perform the machining of the outer periphery in an extremely small range, and the machining cost and the machining time can be greatly reduced. . Further, since the processing range is small, even if the margin S is slightly increased, the influence on the product cost is relatively small. Therefore, the unit steel pipe 10a as a material
It is also possible to reduce the cost of the unit steel pipe 10a by relaxing the outer diameter dimensional accuracy, particularly in the stage of manufacturing itself, that is, at the stage of processing from a flat material to a steel pipe.
【００２０】また、図１（２）に示す単位鋼管柱１０同
士を溶接することにより、同図（３）に示すように、フ
ランジ１１が所定の間隔で一体に取り付けられることに
なり、複数層にわたる円形鋼管柱１２を極めて低いコス
トで製造することができる。更に、フランジ１１には完
全なリング状の材料を使用し、その内径は勿論、鋼管１
０ａの外径についても必要にして十分な寸法精度に加工
した上両者を溶接により一体構造としているので、この
種円形鋼管柱の仕口部に要求される機械的強度を十分な
信頼性のもとに確保することができる。Further, by welding the unit steel pipe columns 10 shown in FIG. 1 (2), the flanges 11 are integrally mounted at predetermined intervals as shown in FIG. Can be manufactured at extremely low cost. Further, a completely ring-shaped material is used for the flange 11, and the inner diameter of the
Since the outer diameter of 0a is processed to a sufficient dimensional accuracy as required, and the two are integrated into a single structure by welding, the mechanical strength required for the connection part of this kind of circular steel pipe column has sufficient reliability. And can be secured.
【００２１】なお、上記実施例では、単位鋼管１０ａの
端部から梁の高さに相当する寸法の１／２の位置にフラ
ンジ１１を取り付けるようにしたが、必ずしも正確に１
／２にする必要はなく、単位鋼管１０同士を溶接したと
きのその溶接部Ｗに隣接する一対のフランジ１１の間隔
が所定の梁の高さに相当する寸法になればよい。In the above embodiment, the flange 11 is mounted at a position which is 1/2 of the dimension corresponding to the height of the beam from the end of the unit steel pipe 10a.
It is not necessary to set the distance between the pair of flanges 11 adjacent to the welded portion W when the unit steel pipes 10 are welded to each other to be a dimension corresponding to a predetermined beam height.
【００２２】図２はこの発明の他の実施例を示す円形鋼
管柱の製造方法を説明するための構成図である。ここで
は先ず、一対のフランジ１１Ａ，１１Ｂを接合部パネル
の高さに相当する間隔Ｈ２で溶接するのに必要な長さＨ
ａ（従ってＨａ＞Ｈ２）を有する単位鋼管１３ａを用意
し、これに図１の実施例で説明した方法で機械加工を施
し、両フランジ１１Ａ，１１Ｂを溶接して第１の単位鋼
管柱１３に仕上げる（図２（１））。FIG. 2 is a structural view for explaining a method of manufacturing a circular steel pipe column showing another embodiment of the present invention. Here, first, the length H required to weld the pair of flanges 11A and 11B at an interval H2 corresponding to the height of the joint panel.
a (accordingly, Ha> H2) is prepared, machined by the method described in the embodiment of FIG. 1 and welded to both flanges 11A and 11B to form the first unit steel pipe column 13. Finish (Fig. 2 (1)).
【００２３】同図（２）は第２の単位鋼管柱１４で、そ
の長さＨｂは、Ｈａ＋Ｈｂが工作物の１層分の高さ（階
高）に相当する長さＨ１と等しくなるように、従ってＨ
ｂ＝Ｈ１−Ｈａに設定されている。この第２の単位鋼管
柱１４は、フランジ１１が溶接されないので、後述する
単位鋼管柱１３，１４間の溶接に支障がない限り、その
外周を機械加工する必要はなく、平板材を加工して得ら
れた鋼管素材をその端面のみに機械加工を施すのみでそ
のまま使用することができる。FIG. 2B shows a second unit steel pipe column 14 having a length Hb such that Ha + Hb is equal to a length H1 corresponding to the height (floor height) of one layer of the workpiece. And therefore H
b = H1−Ha is set. Since the flange 11 is not welded to the second unit steel pipe column 14, it is not necessary to machine the outer periphery of the second unit steel column 13, as long as the welding between the unit steel columns 13 and 14 described later is not hindered. The obtained steel pipe material can be used as it is only by machining only the end face thereof.
【００２４】そして、最後に、図２（３）に示すよう
に、必要数の単位鋼管柱１３および１４を交互に同軸上
に配置し、各端部同士を溶接して所定長の円形鋼管柱１
５に仕上げる。図中Ｗに溶接部を示す。Finally, as shown in FIG. 2 (3), the required number of unit steel pipe columns 13 and 14 are alternately and coaxially arranged, and their ends are welded to each other to form a circular steel pipe column of a predetermined length. 1
Finish to 5. In the drawing, W indicates a welded portion.
【００２５】この場合、鋼管外周の機械加工範囲が少な
いことは勿論であるが、図１に示す方法に比較して、こ
の加工を施すべき鋼管自体の長さが短くなるので、溶接
機も小型のもので済み、これら溶接機へのワーク（鋼
管）の着脱等の作業が簡便となる。なお、上記説明で
は、単位鋼管１３ａに施す機械加工範囲をフランジ１１
の取付位置から鋼管１３ａの端部までとしたが、鋼管１
３ａの全長にわたって加工するようにしてもよい。この
場合、機械加工範囲はわずかに増大するが、例えば、旋
盤の加工手順を減らして作業要領の簡略化が可能とな
り、全体として作業時間の短縮が実現する可能性があ
る。In this case, it is a matter of course that the machining range of the outer periphery of the steel pipe is small, but the length of the steel pipe itself to be processed is shorter than that of the method shown in FIG. Work such as attaching and detaching a work (steel pipe) to and from these welding machines is simplified. In the above description, the machining range applied to the unit steel pipe 13a is the flange 11
From the mounting position to the end of the steel pipe 13a.
You may make it process over the full length of 3a. In this case, although the machining range slightly increases, for example, it is possible to simplify the work procedure by reducing the machining procedure of the lathe, and it may be possible to shorten the work time as a whole.
【００２６】図３は更に他の実施例を示すもので、単位
鋼管１０ａの端部にテーパ部１０ｂが形成されており、
その外径が鋼管端部へいくに従い減少しており、隣接す
る小径の単位鋼管１０ｃと接合、一体としている点が図
１に示す実施例と異なる。この場合、フランジ１１Ａと
単位鋼管１０ａの右方端との間の内、テーパ部１０ｂの
部分の機械加工が不要となるだけで図１で説明した方法
をそのまま適用することができ同様の効果を奏する。FIG. 3 shows still another embodiment, in which a tapered portion 10b is formed at an end of a unit steel pipe 10a.
The embodiment differs from the embodiment shown in FIG. 1 in that the outer diameter decreases toward the end of the steel pipe and is joined to and integrated with the adjacent small diameter unit steel pipe 10c. In this case, the method described with reference to FIG. 1 can be applied as it is because the machining of the tapered portion 10b between the flange 11A and the right end of the unit steel pipe 10a is not necessary, and the same effect can be obtained. Play.
【００２７】なお、上記各実施例では、工作物の階高、
即ち１層分の高さ（各図ではＨ１が相当）は各層共等し
いとして説明しているが、この発明の適用上、このよう
な条件に限定されることは全くなく、各層の高さが互い
に異なる場合にも適用することができ同等の効果を奏す
る。また、接合部パネルの高さ、即ち、梁の高さ（各図
ではＨ２が相当）についても全く同様に層により異なる
場合にもこの発明は同様に適用することができ同等の効
果を奏する。In each of the above embodiments, the floor height of the workpiece,
That is, the height of one layer (H1 is equivalent in each drawing) is described as being equal in each layer, but the present invention is not limited to such conditions at all, and the height of each layer is not limited. The present invention can be applied to a case different from each other and has the same effect. In addition, the present invention can be similarly applied to the case where the height of the joint panel, that is, the height of the beam (H2 is equivalent in each drawing) differs depending on the layer, and the same effect can be obtained.
【００２８】また、上記実施例では１層の梁に対して２
個一対のフランジを設けているが、この発明は、階高や
梁の高さが変化する場合、また、同一階において床レベ
ルが部分的に変化する場合等で、１層の梁に対して３個
またはそれ以上を１組とするフランジを必要とする場合
にも、適用可能である。更に、フランジは、完全一体環
状、即ちリング状であれば、任意の形状のものを適用す
ることができる。即ち、例えば、図４に示すように、接
合一体とすべき梁の形態に応じて種々の形状のフランジ
１１Ｃ，１１Ｄを適用することができる。In the above embodiment, two beams are used for one layer.
Although a pair of flanges are provided, the present invention is applied to a single-layer beam when the floor height or the height of the beam changes, or when the floor level partially changes on the same floor. The present invention is also applicable to a case in which three or more flanges are required. Further, the flange may be of any shape as long as it is completely integrally annular, that is, a ring shape. That is, for example, as shown in FIG. 4, various shapes of flanges 11C and 11D can be applied according to the form of the beam to be joined and integrated.
【００２９】また、この発明は重層鉄骨工作物に限ら
ず、円形鋼管を柱材としてこれに梁接合用のフランジを
溶接で一体に取り付けた構造の円形鋼管柱の製造に広く
適用することができるものである。The present invention is not limited to a multi-layer steel structure, and can be widely applied to the manufacture of a circular steel pipe column having a structure in which a circular steel pipe is used as a column material and a flange for beam connection is integrally attached to the column by welding. Things.
【００３０】[0030]
【発明の効果】この発明は以上のように構成されている
ので、鋼管の外周にフランジを溶接で一体に取り付ける
という簡単な構造で、しかも上記鋼管の外周をその必要
な寸法精度に加工する範囲が僅かで済み、低コストで信
頼性の高い円形鋼管柱を得ることができる。Since the present invention is constructed as described above, it has a simple structure in which the flange is integrally attached to the outer periphery of the steel pipe by welding, and the range in which the outer circumference of the steel pipe is machined to the required dimensional accuracy. However, a low cost and highly reliable circular steel pipe column can be obtained.
【００３１】また、上記方法で製造したフランジ付鋼管
を複数本同軸上に配置し、各端部同士を溶接するように
したので、上記した利点を活かし少ない溶接個所で長尺
の円形鋼管柱を得ることができる。Further, since a plurality of flanged steel pipes manufactured by the above method are arranged coaxially and the respective ends are welded to each other, a long circular steel pipe column can be formed at a small number of welding points by taking advantage of the above advantages. Obtainable.
【００３２】更に、１層分の高さに相当する長さの単位
鋼管に上述の方法で一対のフランジを取り付けて単位鋼
管柱とし、これを必要数、溶接して一体にするようにし
たので、重層工作物にそのまま適用可能な円形鋼管柱を
極めて簡便な加工で仕上げることができる。Further, a pair of flanges is attached to a unit steel pipe having a length corresponding to the height of one layer by the above-described method to form a unit steel pipe column, and a required number of these are welded to be integrated. In addition, a circular steel pipe column that can be applied to a multi-layered workpiece as it is can be finished with extremely simple processing.
【００３３】また、フランジの溶接のための機械加工が
必要となるが短尺の第１の単位鋼管柱と、機械加工が不
要な長尺の第２の単位鋼管柱とを交互に接合して一体に
するようにしたので、機械加工範囲の縮減とともに、加
工の作業内容も簡便となる。In addition, the first unit steel column, which requires machining for welding the flange, but is short, and the second unit steel column, which is long, which does not require machining, are alternately joined and integrated. As a result, the working range of the machining is simplified as well as the range of machining is reduced.
【図１】この発明の一実施例による円形鋼管柱の製造方
法を説明するための一連の構成図である。FIG. 1 is a series of structural diagrams for explaining a method of manufacturing a circular steel pipe column according to one embodiment of the present invention.
【図２】この発明の他の実施例による円形鋼管柱の製造
方法を説明するための一連の構成図である。FIG. 2 is a series of structural views for explaining a method of manufacturing a circular steel pipe column according to another embodiment of the present invention.
【図３】この発明の更に他の実施例における要部を説明
するための構成図である。FIG. 3 is a configuration diagram for explaining a main part in still another embodiment of the present invention.
【図４】この発明の更に他の実施例におけるフランジの
形状を説明するための構成図である。FIG. 4 is a configuration diagram for explaining a shape of a flange in still another embodiment of the present invention.
【図５】従来の円形鋼管柱の一例を一部断面で示す構成
図である。FIG. 5 is a configuration diagram showing an example of a conventional circular steel pipe column in a partial cross section.
【図６】図５とは異なる従来の円形鋼管柱の一例を一部
断面で示す構成図である。FIG. 6 is a configuration diagram partially showing a cross section of an example of a conventional circular steel pipe column different from FIG. 5;
【図７】更に異なる従来の円形鋼管柱の一例を一部断面
で示す構成図である。FIG. 7 is a configuration diagram showing a partial cross section of an example of another conventional circular steel pipe column.
【図８】更に異なる従来の円形鋼管柱の一例を一部断面
で示す構成図である。FIG. 8 is a configuration diagram showing, in a partial cross section, still another example of a conventional circular steel pipe column.
１０は単位鋼管柱、１０ａは単位鋼管、１１はフラン
ジ、１２は円形鋼管柱、１３は第１の単位鋼管柱、１３
ａは単位鋼管、１４は第２の単位鋼管柱、１５は円形鋼
管柱、Ｈ１は１層分の高さ（階高）に相当する長さ、Ｈ
２は梁高さ（接合部パネルの高さ）に相当する寸法、Ｗ
は溶接部である10 is a unit steel pipe column, 10a is a unit steel pipe, 11 is a flange, 12 is a circular steel pipe column, 13 is a first unit steel pipe column, 13
a is a unit steel pipe, 14 is a second unit steel pipe column, 15 is a circular steel pipe column, H1 is a length corresponding to the height (floor height) of one layer, H
2 is the dimension corresponding to the beam height (the height of the joint panel), W
Is the weld
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 1/24 E04B 1/58 508 E04C 3/32 B23K 9/00 501 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) E04B 1/24 E04B 1/58 508 E04C 3/32 B23K 9/00 501
Claims (5)
ング状のフランジを溶接で一体に取付けてなる円形鋼管
柱の製造方法において、 上記鋼管として、その外径が上記フランジとの溶接に必
要な所定寸法精度に仕上げるための仕上げしろを含めた
寸法のものを素材として用意し、上記フランジとして、
その内径が上記鋼管との溶接に必要な所定寸法精度に仕
上げたものを用意し、上記鋼管の両端から上記フランジ
の取付位置までのいずれか一方の外周部分のみを上記所
定寸法精度に仕上げ加工した後、上記フランジを鋼管の
上記仕上げ加工を施した方の端部から取付位置まで嵌入
し、上記鋼管とフランジとを溶接するようにしたことを
特徴とする円形鋼管柱の製造方法。1. A method of manufacturing a circular steel pipe column comprising a cylindrical steel pipe and a ring-shaped flange for joining to a beam integrally attached to an outer periphery of the cylindrical steel pipe by welding, wherein the steel pipe has an outer diameter corresponding to that of the flange. Prepare a material with dimensions including finishing margin for finishing to the required dimensional accuracy required for welding, as the above flange,
The inner diameter was prepared to have a predetermined dimensional accuracy necessary for welding with the steel pipe, and only one of the outer peripheral portions from both ends of the steel pipe to the mounting position of the flange was finished to the predetermined dimensional accuracy. A method of manufacturing a circular steel pipe column, wherein the flange is fitted from the end of the steel pipe subjected to the finish processing to the mounting position, and the steel pipe and the flange are welded.
ンジ付鋼管を複数本同軸上に配置し、各端部同士を溶接
して長尺の鋼管柱に仕上げることを特徴とする円形鋼管
柱の製造方法。2. A circular steel pipe column comprising a plurality of flanged steel pipes manufactured by the method according to claim 1 arranged coaxially, and each end welded to a long steel pipe column. Manufacturing method.
る長さの円筒状の鋼管の外周に、梁の高さに相当する間
隔で配置される一対の梁接合用のリング状のフランジを
重層工作物の１層分の高さに相当する間隔で複数対順次
溶接で一体に取付けてなる円形鋼管柱の製造方法におい
て、 上記重層工作物の１層分の高さに相当する長さを有し、
その外径が上記フランジとの溶接に必要な所定寸法精度
に仕上げるための仕上げしろを含めた寸法の単位鋼管を
用意し、上記フランジとして、その内径が上記鋼管との
溶接に必要な所定寸法精度に仕上げたものを用意し、上
記単位鋼管の両端からそれぞれ梁高さに相当する寸法の
ほぼ１／２の位置までの外周部分のみを上記所定寸法精
度に仕上げ加工した後、上記一対のフランジのそれぞれ
を上記単位鋼管の両端から上記位置まで嵌入し、上記単
位鋼管とフランジとを溶接することにより上記単位鋼管
に上記一対のフランジを一体に取付けて単位鋼管柱を製
造し、しかる後、必要数の上記単位鋼管柱を同軸上に配
置し、各端部同士を溶接して所定長の鋼管柱に仕上げる
ことを特徴とする円形鋼管柱の製造方法。3. A ring shape for joining a pair of beams, which is arranged on an outer periphery of a cylindrical steel pipe having a length corresponding to a required number of layers of a multi-layered workpiece at an interval corresponding to a height of a beam. A plurality of pairs of flanges are integrally attached by welding sequentially at intervals corresponding to the height of one layer of a multi-layered workpiece, the flanges corresponding to the height of one layer of the multi-layered workpiece. Has a length ,
The outer diameter is the required dimensional accuracy required for welding to the above flange
Unit steel pipe with dimensions including finishing margin for finishing
Prepare the above flange, the inner diameter of which is
Prepare a product finished to the specified dimensional accuracy required for welding, and
The predetermined dimensional accuracy of only the outer peripheral portion to approximately 1/2 of the position of the dimension corresponding from both ends of the serial unit steel each beam height
After finishing each time, each of the above pair of flanges
From the both ends of the unit steel pipe to the above position,
The unit steel pipe is welded by welding the steel pipe and the flange.
Attach the pair of flanges integrally to manufacture a unit steel pipe column, then arrange the required number of the unit steel column coaxially, weld each end and finish it to a steel pipe column of a predetermined length A method for producing a circular steel pipe column, characterized by the following.
る長さの円筒状の鋼管の外周に、梁の高さに相当する間
隔で配置される１組の梁接合用のリング状のフランジを
重層工作物の１層分の高さに相当する間隔で複数組順次
溶接で一体に取り付けてなる円形鋼管柱の製造方法にお
いて、 上記１組のフランジの取付けに必要な長さを有する単位
鋼管を用意し、上記単位鋼管の外径を上記フランジとの
溶接に必要な所定寸法精度に仕上げ加工した後、その内
径が上記単位鋼管との溶接に必要な所定寸法精度に仕上
げた１組のフランジを上記単位鋼管の所定の取付位置ま
で嵌入し、上記単位鋼管と１組のフランジとを溶接して
第１の単位鋼管柱を製造し、この第１の単位鋼管柱の長
さとの和が上記重層工作物の１層分の高さに相当する長
さとなる長さを有し上記フランジを取付けない第２の単
位鋼管柱を用意し、しかる後、必要数の上記第１および
第２の単位鋼管柱を交互に同軸上に配置し、各端部同士
を溶接して所定長の鋼管柱に仕上げることを特徴とする
円形鋼管柱の製造方法。4. A set of beam joining rings arranged on the outer circumference of a cylindrical steel pipe having a length corresponding to the required number of layers of a multi-layered workpiece at an interval corresponding to the height of a beam. In a method for manufacturing a circular steel pipe column in which a plurality of sets of flanges are integrally attached by welding sequentially at intervals corresponding to the height of one layer of a multi-layered workpiece, the length required for attaching the one set of flanges is determined. After preparing a unit steel pipe having an outer diameter of the unit steel pipe and finishing the outer diameter of the unit steel pipe to a predetermined dimensional accuracy required for welding with the flange, the inner diameter thereof is finished to a predetermined dimensional accuracy required for welding with the unit steel pipe. A set of flanges is fitted to a predetermined mounting position of the unit steel pipe, and the unit steel pipe and one set of flanges are welded to produce a first unit steel pipe column. The length whose sum is the length corresponding to the height of one layer of the above multi-layer work A second unit steel pipe column not having the flange is prepared, and then a required number of the first and second unit steel pipe columns are alternately arranged coaxially, and each end is welded to each other. And producing a steel pipe column having a predetermined length.
る長さの円筒状の鋼管の外周に、梁の高さに相当する間
隔で配置される１組の梁接合用のリング状のフランジを
重層工作物の１層分の高さに相当する間隔で複数組順次
溶接で一体に取り付けてなる円形鋼管柱の製造方法にお
いて、 上記１組のフランジの取付けに必要な長さを有し、その
外径が上記フランジとの溶接に必要な所定寸法精度に仕
上げるための仕上げしろを含めた寸法の単位鋼管を用意
し、上記フランジとして、その内径が上記鋼管との溶接
に必要な所定寸法精度に仕上げたものを用意し、上記単
位鋼管の両端からそれぞれ上記１組のフランジの取付け
に必要な位置までの外周部分のみを上記所定寸法精度に
仕上げ加工した後、上記１組のフランジの内一部のもの
とその残部のものとをそれぞれ上記単位鋼管の両端から
上記取付けに必要な位置まで嵌入し、上記単位鋼管とフ
ランジとを溶接することにより上記単位鋼管に上記１組
のフランジを一体に取付けて第１の単位鋼管柱を製造
し、この第１の単位鋼管柱の長さとの和が上記重層工作
物の１層分の高さに相当する長さとなる長さを有し上記
フランジを取付けない第２の単位鋼管柱を用意し、しか
る後、必要数の上記第１および第２の単位鋼管柱を交互
に同軸上に配置し、各端部同士を溶接して所定長の鋼管
柱に仕上げることを特徴とする円形鋼管柱の製造方法。5. A set of beam-joining rings arranged on the outer periphery of a cylindrical steel pipe having a length corresponding to the required number of layers of a multi-layered workpiece at an interval corresponding to the height of a beam. In a method for manufacturing a circular steel pipe column in which a plurality of sets of flanges are integrally attached by welding sequentially at intervals corresponding to the height of one layer of a multi-layered workpiece, the length required for attaching the one set of flanges is determined. Yes, and the
The outer diameter is adjusted to the specified dimensional accuracy required for welding with the flange.
Prepare a unit steel pipe with dimensions including the finishing margin to raise, and as the above flange, the inner diameter is welded to the above steel pipe.
Prepare a product finished to the specified dimensional accuracy required for
Attach the above set of flanges from both ends of the steel pipe
Only the outer peripheral part up to the position required for
After finishing, a part of the above set of flanges
And the rest of them from each end of the unit steel pipe
Insert the unit steel pipe to the required position for
The above-mentioned one set is attached to the above unit steel pipe by welding
The first unit steel pipe column is manufactured by integrally attaching the flanges of the above, and the length of the first unit steel tube column is determined to be a length corresponding to the height of one layer of the multi-layered workpiece. A second unit steel pipe column having the above flange and not having the flange is prepared. Thereafter, a required number of the first and second unit steel pipe columns are alternately arranged coaxially, and each end is welded to each other. A method for manufacturing a circular steel pipe column, which is finished to a steel pipe column of a predetermined length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03348288A JP3095843B2 (en) | 1991-12-03 | 1991-12-03 | Manufacturing method of circular steel pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03348288A JP3095843B2 (en) | 1991-12-03 | 1991-12-03 | Manufacturing method of circular steel pipe column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05156749A JPH05156749A (en) | 1993-06-22 |
| JP3095843B2 true JP3095843B2 (en) | 2000-10-10 |
Family
ID=18396033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03348288A Expired - Lifetime JP3095843B2 (en) | 1991-12-03 | 1991-12-03 | Manufacturing method of circular steel pipe column |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3095843B2 (en) |
-
1991
- 1991-12-03 JP JP03348288A patent/JP3095843B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05156749A (en) | 1993-06-22 |
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