JPH0726061Y2 - Steel column connection structure and welding backing metal fittings used therefor - Google Patents
Steel column connection structure and welding backing metal fittings used thereforInfo
- Publication number
- JPH0726061Y2 JPH0726061Y2 JP1990060318U JP6031890U JPH0726061Y2 JP H0726061 Y2 JPH0726061 Y2 JP H0726061Y2 JP 1990060318 U JP1990060318 U JP 1990060318U JP 6031890 U JP6031890 U JP 6031890U JP H0726061 Y2 JPH0726061 Y2 JP H0726061Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel column
- welding
- backing metal
- metal fitting
- shaped member
- 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 - Fee Related
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、建築又は構築に際する鋼柱の連結をするの
に、該連結のために溶接を容易におこなうことができる
鋼柱の連結構造体並びにそれに用いる溶接用裏当て金具
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the connection of steel columns which can be easily welded for connecting the steel columns for construction or construction. The present invention relates to a structure and a welding backing metal fitting used for the structure.
従来、溶接用裏当て金具としては、帯状鋼材をコ形状に
折曲して長辺部と短辺部を形成し、長辺部の長さは中空
の正方形鋼柱の内幅とし、短辺部の長さは該内幅の略半
分としたものがある。更に、鋼柱の連結構造体として
は、一対の溶接用裏当て金具の先端同士を対面させた状
態で鋼柱の開口部より挿入し、鋼柱口縁より上部を突出
させて手で或いはクリップ等で保持した状態でスポット
溶接することにより仮止めを行った後、ダイヤフラムを
載置した状態で鋼柱とダイヤフラムを溶接することによ
り取り付け、同様にして溶接用裏当て金具を介して鋼柱
をダイヤフラム上に取り付けた鋼柱の連結構造体があ
る。Conventionally, as a backing metal for welding, a strip-shaped steel material is bent into a U-shape to form a long side and a short side, and the length of the long side is the inner width of a hollow square steel column. The length of the part is approximately half of the inner width. Further, as a connection structure of steel columns, a pair of welding backing metal fittings are inserted from the openings of the steel columns with the tips facing each other, and the upper part is projected from the rim of the steel columns, or by a clip. After temporarily fixing it by spot welding while holding it with, etc., attach it by welding the steel column and the diaphragm with the diaphragm placed, and similarly mount the steel column via the backing metal fitting for welding. There is a connecting structure of steel columns mounted on the diaphragm.
しかし、従来の鋼柱の連結構造体並びにそれに用いる溶
接用裏当て金具を用いた場合には、一対の溶接用裏当て
金具を短辺部の端部同士を当接させた状態で挿入し、鋼
柱口縁より上部を突出させて手で或いはクリップ等で保
持した状態でスポット溶接することにより仮止めを行う
ので、溶接用裏当て金具の仮止めが大変に困難であると
ともに、また仮止めのとき、どうしても溶接用裏当て金
具がねじれるので、鋼柱のそれぞれの面に対して溶接用
裏当て金具を均等な長さに突出させるのは困難であると
いう問題点がある。However, in the case of using a conventional steel column connection structure and a welding backing metal fitting used for it, a pair of welding backing metal fittings are inserted with the ends of the short sides in contact with each other, Temporary fixing is performed by spot welding with the upper part protruding from the rim of the steel column and holding it by hand or with clips etc., so it is very difficult to temporarily fix the backing metal for welding, and also temporary fixing At this time, the welding backing metal member is twisted by all means, and it is difficult to project the welding backing metal member to each of the surfaces of the steel column in a uniform length.
そこで、本考案は、鋼柱に対して仮止めをおこなう必要
がなく、容易に位置決めを行うことができる鋼柱の連結
構造体並びにそれに用いる溶接用裏当て金具を提供しよ
うとするものである。Then, this invention aims at providing the connection structure of a steel column which does not need to temporarily fix to a steel column, and can position easily, and the backing metal fitting for welding used for it.
上記目的を達成するために、鋼柱の連結構造体として
は、帯状部材を用いて全体をコの字形状とし、この一対
の先端同士を対面させた状態で角柱状の鋼柱内面に当接
しうる大きさにし、帯状部材の一側端側の表面にテーパ
ー部を設け、鋼柱の開口部より嵌入したときに該テーパ
ー部の他側端側の一部が鋼柱内に位置するとともに、一
側端がこの開口部口端より突出するように鋼柱の角部に
係止しうる位置に突部を設けた溶接用裏当て金具を、鋼
柱の開口部より嵌入して該突部で係止させた状態で、該
溶接用裏当て金具の一側端にダイヤフラムを位置させ、
ダイヤフラムと鋼柱とを溶接することにより鋼柱を上下
に連接してなるものである。In order to achieve the above-mentioned object, as a steel column connecting structure, a strip-shaped member is used to make a U-shape as a whole, and the pair of tips are brought into contact with the inner surface of a prismatic steel column. With a taper portion on the surface of the one end of the strip-shaped member, and a part of the other end of the taper portion is located inside the steel column when fitted from the opening of the steel column, A backing metal fitting for welding having a protrusion at a position where it can be locked to a corner of a steel column so that one side end protrudes from the mouth end of this opening, is inserted from the opening of the steel column, and the protrusion is inserted. Position the diaphragm at one end of the welding backing metal fitting,
By welding the diaphragm and the steel column, the steel columns are connected vertically.
また、同様に帯状部材を用いて全体をＬの字形状とし、
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けた溶接用裏当て金
具を、鋼柱の開口部より嵌入して該突部で係止させた状
態で、該溶接用裏当て金具の一側端にダイヤフラムを位
置させ、ダイヤフラムと鋼柱とを溶接することより鋼柱
を上下に連接してなるものであってもよい。Similarly, a strip-shaped member is used to make the whole L-shaped,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. With the welding backing metal fitting fitted into the opening of the steel column and locked by the projection, the diaphragm is positioned at one end of the welding backing metal fitting, and the diaphragm and the steel column are joined together. The steel columns may be connected vertically by welding.
上記目的を達成するために、溶接用裏当て金具として
は、帯状部材を用いて全体をコの字形状とし、この一対
の先端同士を対面させた状態で角柱状の鋼柱内面に当接
しうる大きさにし、帯状部材の一側端側の表面にテーパ
ー部を設け、鋼柱の開口部より嵌入したときに該テーパ
ー部の他側端側の一部が鋼柱内に位置するとともに、一
側端がこの開口部口端より突出するように鋼柱の角部に
係止しうる位置に突部を設けたものである。In order to achieve the above-mentioned object, as a backing metal fitting for welding, a band-shaped member is used to form a U-shape as a whole, and the pair of tips can be brought into contact with the inner surface of a prismatic steel column. The size of the strip-shaped member is provided with a taper portion on one end side surface, and when the taper portion is fitted through the opening, a part of the other end side of the taper portion is located in the steel column and The protrusion is provided at a position where it can be locked to the corner of the steel column so that the side end projects from the mouth end of the opening.
また、同様に帯状部材を用いて全体をＬの字形状とし、
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けたものであっても
よい。Similarly, a strip-shaped member is used to make the whole L-shaped,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. It may be
以上の如く本考案の鋼柱の連結構造体並びにそれに用い
る溶接用裏当て金具によれば、全体がコの字形状である
溶接用裏当て金具の一対の先端同士を対面させた状態で
角柱状の鋼柱の開口部より嵌入し、突部を鋼柱の角部に
係止して帯状部材の一側端を突出させ、この一側端に板
状のダイヤフラムを位置させ、鋼柱とダイヤフラムとを
溶接し、同様にダイヤフラムの上部にも溶接用裏当て金
具を介して鋼柱を連結することにより、鋼柱の連結構造
体にすることができる。しかも、鋼柱開口部に突部で係
止させたときに該テーパー部の他側端側の一部が鋼柱内
に位置する位置関係に設定しているため、単に板状の溶
接用裏当て金具に比べて、もし溶接の時に気泡が発生し
ても、その気泡が鋼柱内面と溶接用裏当て金具のテーパ
ー部の他側端側の一部の間に位置することとなり、母材
の材料厚から気泡が外部にそれるため、溶接部への悪影
響を少なくでき、強度を所定の状態で維持することがで
きる。As described above, according to the steel column connecting structure of the present invention and the welding backing metal fitting used therefor, the prismatic pillar having the pair of tips of the welding backing metal fitting, which is U-shaped as a whole, faces each other. The steel column and the diaphragm are fitted into the opening of the steel column, the protrusions are locked to the corners of the steel column, and one end of the strip-shaped member is projected, and the plate-shaped diaphragm is positioned at this one end. It is possible to form a connection structure of steel columns by welding and, and similarly connecting the steel columns to the upper part of the diaphragm through the welding backing metal fittings. Moreover, since a part of the other end side of the taper portion is positioned inside the steel column when the protrusion is locked in the steel column opening, the plate-shaped welding back surface is simply used. Compared to the metal fitting, even if bubbles are generated during welding, the air bubbles will be located between the inner surface of the steel column and a part of the other end of the taper part of the back metal fitting for welding. Since the bubbles deviate from the material thickness to the outside, the adverse effect on the welded portion can be reduced and the strength can be maintained in a predetermined state.
更に、全体をＬの字形状とし、この一対の先端同士を対
面させた状態で角柱状の鋼柱内面に当接しうる大きさに
し、鋼柱の角部に係止しうる位置に突部を設けた溶接用
裏当て金具を用いた場合には、全体がＬの字形状である
溶接用裏当て金具の一対の先端同士を対面させた状態で
角柱状の鋼柱の開口部より嵌入し、同様に突部を鋼柱の
角部に係止させることができる。Furthermore, the whole is L-shaped, and the pair of tips are made large enough to contact the inner surface of the prismatic steel column with the tips facing each other, and the protrusion is provided at a position where it can be locked at the corner of the steel column. In the case of using the provided welding backing metal fitting, the welding backing metal fitting having a generally L-shape is fitted into the opening of the prismatic steel pillar with the pair of tips facing each other, Similarly, the protrusion can be locked to the corner of the steel column.
本考案の詳細を更に図示した実施例にもとずき説明す
る。The details of the present invention will be explained based on the illustrated embodiment.
鋼柱の連結構造体Ａは、第１図から第３図に示すように
溶接用裏当て金具Ｂ、角柱状の鋼柱１、板状のダイヤフ
ラム２より構成されている。As shown in FIGS. 1 to 3, the connecting structure A of steel columns is composed of a welding backing metal fitting B, a prismatic steel column 1, and a plate-shaped diaphragm 2.
第４図（イ）に示すものは、溶接用裏当て金具Ｂの第１
実施例であり、帯状部材３の両端部を略50°に折曲して
全体をコの字形状とすることにより長辺部４と短辺部５
を形成し、一側端部の表面にテーパー部６を設け、長辺
部４と短辺部５の角部７、７に帯状部材３本体を突出さ
せることにより、突部８を設けたものである。詳しく
は、突部８は、第４図（ハ）のようにプレス加工により
帯状部材３の上部途中より水平片3a、垂直片3b、傾斜片
3cを突出させたものである。尚、この突部８は、プレス
加工により一体成形したものであるが、これに限定され
るものではなく、帯状部材３の表面に突部８を取りつけ
ることも可能である。更に、この溶接用裏当て金具Ｂ
は、２個の溶接用裏当て金具Ｂの先端同士を対面させた
状態で角柱状の鋼柱１内に当接しうる大きさに設定さ
れ、突部８により、鋼柱１の開口部９に嵌入したときに
該帯状部材３の一側端部がこの開口部９より突出した状
態で該開口部９に係止することができる。What is shown in Fig. 4 (a) is the first of the backing metal fitting B for welding.
This is an example, and the long side portion 4 and the short side portion 5 are formed by bending both ends of the strip-shaped member 3 to approximately 50 ° to form a U-shape.
And a taper portion 6 is provided on the surface of one end portion, and a protrusion 8 is provided by projecting the belt-shaped member 3 main body at the corners 7, 7 of the long side portion 4 and the short side portion 5. Is. Specifically, as shown in FIG. 4 (c), the protrusion 8 is formed by pressing a horizontal piece 3a, a vertical piece 3b, and an inclined piece from the upper middle of the strip-shaped member 3.
It is a projection of 3c. The protrusion 8 is integrally formed by pressing, but the present invention is not limited to this, and the protrusion 8 may be attached to the surface of the belt-shaped member 3. Furthermore, this backing metal fitting B for welding
Is set to a size such that the two backing metal fittings B for welding can be brought into contact with the inside of the prismatic steel column 1 with the tips facing each other. When fitted, the one end portion of the belt-shaped member 3 can be locked in the opening 9 in a state of protruding from the opening 9.
第４図（ロ）で示すものは、溶接用裏当て金具Ｂの第２
実施例であり、帯状部材３の略中央を略90°に折曲する
ことにより、全体をＬの字形状形状とすることにより一
方の辺11と他方の辺12を形成し、一側端部の表面にテー
パー部６を設け、一方の辺11と他方の辺12の角部７及び
一方の辺11と他方の辺12の先端13に第４図（ハ）のよう
にプレス加工により帯状部材３本体を突出させることに
より、突部８を設けたものである。更に、この溶接用裏
当て金具Ｂは、２個の溶接用裏当て金具Ｂの先端同士を
対面させた状態で角柱状の鋼柱１内に当接しうる大きさ
に設定され、特に、一方の辺11と他方の辺12の先端13に
設けられた突部８は、一方の辺11と他方の辺12の角部７
の突部８の半分の大きさである。What is shown in FIG. 4B is the second of the backing metal fitting B for welding.
This is an example, and one side 11 and the other side 12 are formed by bending the substantially central portion of the belt-shaped member 3 to approximately 90 ° to form an L-shaped shape as a whole, and one side end portion A taper portion 6 is provided on the surface of the belt, and a corner portion 7 of one side 11 and the other side 12 and a tip 13 of the one side 11 and the other side 12 are pressed by a band-shaped member as shown in FIG. 3 The protrusion 8 is provided by projecting the main body. Further, this welding backing metal fitting B is set to a size such that it can be brought into contact with the prismatic steel pillar 1 with the tips of the two welding backing metal fittings B facing each other. The protrusions 8 provided at the tips 13 of the side 11 and the other side 12 are the corners 7 of the one side 11 and the other side 12.
It is half the size of the protrusion 8.
第５図（イ）に示すものは、溶接用裏当て金具Ｂの第３
実施例であり、第１実施例の溶接用裏当て金具Ｂの構造
と同様であるが、帯状部材３の一側端部の表面に特にテ
ーパー部を設けず、突部８はプレス加工により帯状部材
３の一部を突出させ、リング状に形成したものである。What is shown in FIG. 5 (a) is the third of the backing metal fitting B for welding.
This is an embodiment and is similar to the structure of the backing metal fitting B for welding in the first embodiment, but the surface of one end of the belt-shaped member 3 is not particularly provided with a tapered portion, and the projection 8 is formed into a belt-like shape by pressing. A part of the member 3 is projected to form a ring shape.
第５図（ロ）に示すものは、溶接用裏当て金具Ｂの第４
実施例であり、第３実施例の溶接用裏当て金具Ｂの構造
と同様であるが、全体をＬの字形状形状とし、一方の辺
11と他方の辺12の先端に設けられた突部８は一方の辺11
と他方の辺12の突部８の半分の大きさのものである。What is shown in FIG. 5B is the fourth of the backing metal fitting B for welding.
It is an embodiment and is similar to the structure of the backing metal fitting B for welding in the third embodiment, but has an L shape as a whole and one side.
The protrusion 8 provided at the tip of the other side 12 is
And half the size of the protrusion 8 on the other side 12.
第６図（イ）に示すものは、溶接用裏当て金具Ｂの第５
実施例であり、第１実施例の溶接用裏当て金具Ｂの構造
と同様であるが、帯状部材３の一側端部の表面に特にテ
ーパー部を設けず、角部８の上部に横切込部14と縦切込
部15を設けた後、帯状部材３の両端部を略90°に折曲し
て全体をコの字形状とすることにより長辺部４と短辺部
５を形成することにより、係止部16、16を帯状部材３よ
り突出させることにより突部８としたものである。What is shown in FIG. 6 (a) is the fifth of the backing metal fitting B for welding.
This is an example, and is similar to the structure of the backing metal fitting B for welding in the first example, except that no taper portion is particularly provided on the surface of one end portion of the belt-shaped member 3 and a transverse cut is made on the upper portion of the corner portion 8. After providing the notched portion 14 and the vertical notched portion 15, both ends of the belt-shaped member 3 are bent at approximately 90 ° to form a U-shape as a whole to form the long side portion 4 and the short side portion 5. By doing so, the locking portions 16, 16 are projected from the belt-shaped member 3 to form the projection 8.
第６図（ロ）に示すものは、溶接用裏当て金具Ｂの第６
実施例であり、第５実施例の溶接用裏当て金具Ｂの構造
と同様であるが、全体をＬの字形状形状とし、一方の辺
11と他方の辺12の先端に設けられた突部８は、１個の係
止部16を設けたものである。What is shown in FIG. 6B is the sixth of the backing metal fitting B for welding.
It is an embodiment and is similar to the structure of the backing metal fitting B for welding in the fifth embodiment, except that the entire shape is L-shaped and one side is
The protrusion 8 provided at the tips of the side 11 and the other side 12 is provided with one locking portion 16.
第７図に示すものは、溶接用裏当て金具Ｂの第７実施例
であり、第１実施例の溶接用裏当て金具Ｂの構造と同様
であるが、突部８の水平片3aより下方にテーパー部６の
開始部６′を位置させたものである。尚、特に図示しな
いが、第４図（ロ）に示した第２実施例の溶接用裏当て
金具Ｂも同様に突部８の水平片3aより下方にテーパー部
６の開始部６′を位置させることができ、また第３実施
例、第４実施例、第５実施例、第６実施例の溶接用裏当
て金具Ｂも、同様にテーパー部６を設けるとともに突部
８の下面より下方に該テーパー部６の開始部６′を位置
させることが可能である。FIG. 7 shows a seventh embodiment of the backing metal fitting B for welding, which is similar to the structure of the backing metal fitting B for welding of the first embodiment, but below the horizontal piece 3a of the protrusion 8. The starting portion 6'of the taper portion 6 is located at. Although not particularly shown, the welding backing metal fitting B of the second embodiment shown in FIG. 4B also similarly has the starting portion 6 ′ of the taper portion 6 positioned below the horizontal piece 3 a of the protrusion 8. In addition, the welding backing metal fittings B of the third, fourth, fifth, and sixth embodiments are also provided with the tapered portion 6 and located below the lower surface of the protrusion 8 in the same manner. It is possible to position the starting portion 6'of the taper portion 6.
尚、Ｌの字形状の溶接用裏当て金具Ｂは、第９図（イ）
の如く帯状部材３の短辺部５を外方にそらせたものが好
ましく、例えば厚みｄが6mmに対して図中の角度αは、
0.5〜３°の範囲が良好であることが実験により確認さ
れている。また、コの字形状の溶接用裏当て金具Ｂも、
第９図（ロ）の如く帯状部材３のそれぞれの辺11、12を
外方にそらせたものが好ましく、例えば厚みｄが6mmに
対して図中の角度βは、0.5〜２°の範囲が良好である
ことが実験により確認されている。In addition, the L-shaped backing metal fitting B for welding is shown in FIG.
It is preferable that the short side portion 5 of the belt-shaped member 3 is deflected outward as shown in FIG.
It has been confirmed by experiments that the range of 0.5 to 3 ° is favorable. Also, the U-shaped backing metal fitting B for welding is
As shown in FIG. 9 (b), it is preferable that the sides 11 and 12 of the strip-shaped member 3 are deflected outward. For example, the angle β in the figure is 0.5 to 2 ° with respect to the thickness d of 6 mm. It has been confirmed by experiments that it is good.
而して、第２図の如く、第１実施例の溶接用裏当て金具
Ｂの一対の先端同士を対面させた状態で先端にテーパー
部18を有する角柱状の鋼柱１の開口部９より嵌入し、溶
接用裏当て金具Ｂの突部８・・が鋼柱１の開口端に係止
して帯状部材３の一側端を突出させ、この一側端に板状
のダイヤフラム２を位置させ、第３図のように鋼柱１と
ダイヤフラム２とを溶接し、同様にダイヤフラム２の上
部にも溶接用裏当て金具Ｂを介して鋼柱１を連結するこ
とにより、第１図で示した鋼柱の連結構造体Ａにするこ
とができる。Then, as shown in FIG. 2, from the opening 9 of the prismatic steel column 1 having the tapered portion 18 at the tip end with the pair of tips of the welding backing metal fitting B of the first embodiment facing each other. After being inserted, the projection 8 of the backing metal fitting B for welding is locked to the open end of the steel column 1 to project one end of the strip-shaped member 3, and the plate-shaped diaphragm 2 is positioned at this one end. By welding the steel column 1 and the diaphragm 2 as shown in FIG. 3, and similarly connecting the steel column 1 to the upper part of the diaphragm 2 through the welding backing metal fitting B as shown in FIG. It is also possible to make a connection structure A of steel columns.
また、第２実施例の溶接用裏当て金具Ｂを用いれば、一
対の先端同士を対面させた状態で先端にテーパー部18を
有する角柱状の鋼柱１の開口部９より嵌入し、同様に突
部８・・で係止させることができる。Further, if the welding backing metal fitting B of the second embodiment is used, it is fitted from the opening 9 of the prismatic steel column 1 having the tapered portion 18 at the tip with the pair of tips facing each other, and similarly. It can be locked by the projections 8 ...
更に、第３実施例及び第４実施例の溶接用裏当て金具Ｂ
を用いれば、リング状の突部８・・が鋼柱１開口端に係
止することができ、第５実施例及び第６実施例の溶接用
裏当て金具Ｂを用いれば、帯状部材３より突出した係止
部16、16が鋼柱１開口端に係止することができる。Furthermore, the backing metal fitting B for welding of the third and fourth embodiments.
, The ring-shaped protrusions 8 ... Can be locked to the open ends of the steel columns 1. When the welding backing metal fittings B of the fifth and sixth embodiments are used, The protruding locking portions 16, 16 can be locked at the open end of the steel column 1.
このように溶接用裏当て金具Ｂによれば、一対の先端同
士を対面させた状態で先端にテーパー部18を有する角柱
状の鋼柱１の開口部より嵌入し、溶接用裏当て金具Ｂの
突部８・・が鋼柱１の開口端に係止して帯状部材３の一
側端を突出させることにより、溶接用裏当て金具Ｂの位
置決めと仮止めを容易に且つ正確に行うことができる。
特に、第１実施例の溶接用裏当て金具Ｂによれば、全体
をコの字形状にしているため、角柱状の鋼柱１内に嵌入
したとき、鋼柱１内面の３面に当接するので、帯状部材
３がねじれにくく、また角柱状の鋼柱１の角部７に係止
しうる位置に突部８を設けているので、帯状部材がねじ
れることなく安定した状態で鋼柱の開口端に係止させる
ことができ、またプレス加工により帯状部材３本体を突
出させることにより、突部８を形成するので、突部８の
成形が簡単であり、しかも一体成形であるので強度を高
めることができる。また、第２実施例の溶接用裏当て金
具Ｂによれば、全体をＬの字形状にしているので、帯状
部材３をやや外方に開いた状態で鋼柱３内に嵌入するこ
とにより、鋼柱３内面に密着させることができる。Thus, according to the backing metal fitting B for welding, the backing metal fitting B for welding is fitted through the opening of the prismatic steel column 1 having the tapered portion 18 at the tip with the pair of tips facing each other. By engaging the projections 8 ... With the open ends of the steel columns 1 and projecting one end of the strip-shaped member 3, the welding backing metal fitting B can be positioned easily and accurately. it can.
In particular, according to the backing metal fitting B for welding of the first embodiment, since it is U-shaped as a whole, when it is fitted into the steel pillar 1 having a prismatic shape, it comes into contact with the three inner surfaces of the steel pillar 1. Therefore, since the strip-shaped member 3 is difficult to be twisted and the projection 8 is provided at a position where it can be locked to the corner portion 7 of the prismatic steel column 1, the opening of the steel column can be stably held without twisting the strip-shaped member. Since the protrusion 8 can be locked to the end and the main body of the belt-shaped member 3 is protruded by pressing, the protrusion 8 is formed easily, and the strength is increased because it is integrally formed. be able to. Further, according to the backing metal fitting B for welding of the second embodiment, since the whole is L-shaped, by fitting the strip-shaped member 3 into the steel column 3 in a state of being slightly outwardly opened, It can be closely attached to the inner surface of the steel column 3.
また、第７実施例の溶接用裏当て金具Ｂを用いれば、第
８図（ロ）の如く鋼柱１開口部に突部８で係止させたと
きに該テーパー部６の他側端側の一部が鋼柱１内に位置
する位置関係に設定しているので、第８図（イ）で示し
たテーパー部６を設けていない溶接用裏当て金具Ｂに比
べて、気泡が入り溶接の欠陥の発生し易い部分が鋼柱１
内面と溶接用裏当て金具Ｂのテーパー部６の他側端側の
一部の間になるため、溶接部10の影響が少なくなり、強
度が所定の状態で維持することができる。Further, if the welding backing metal fitting B of the seventh embodiment is used, the other end side of the taper portion 6 when the projection 8 is engaged with the opening of the steel column 1 as shown in FIG. Since a part of the metal is set in the positional relationship in which it is located in the steel column 1, compared with the welding backing metal fitting B without the taper portion 6 shown in FIG. Steel column 1 is the part where defects of
Since it is between the inner surface and a part of the other side of the taper portion 6 of the backing metal fitting B for welding, the influence of the weld portion 10 is reduced, and the strength can be maintained in a predetermined state.
更に、第９図（イ）、（ロ）で示したように帯状部材３
の短辺部５、５或いは辺11、12を外方にそらせた溶接用
裏当て金具Ｂを用いれば、鋼柱１内に嵌入したときに鋼
柱１内面に密着した状態で当接するので、溶接用裏当て
金具Ｂの仮止めを容易に行うことができる。Further, as shown in FIGS. 9 (a) and 9 (b), the belt-shaped member 3
When using the backing metal fitting B for welding in which the short sides 5, 5 or the sides 11, 12 of the are bent outward, when they are fitted into the steel column 1, they come into close contact with the inner surface of the steel column 1, The backing metal fitting B for welding can be temporarily fixed easily.
本考案に係る鋼柱の連結構造体並びにそれに用いる溶接
用裏当て金具によれば、全体がコの字形状である溶接用
裏当て金具の一対の先端同士を対面させた状態で角柱状
の鋼柱の開口部より嵌入し、突部を鋼柱の角部に係止し
て帯状部材の一側端を突出させることにより、溶接用裏
当て金具の位置決めと仮止めを容易に且つ正確に行うこ
とができ、しかも帯状部材がねじれることがないので、
鋼柱のそれぞれの面に対して溶接用裏当て金具を均等な
長さに突出させることができ、更に溶接用裏当て金具の
全体をコの字形状にしているため、角柱状の鋼柱内に嵌
入したときに、鋼柱内面の３面に当接するので、帯状部
材がねじれにくく、加えて角柱状の鋼柱の角部に係止し
うる位置に突部を設けているので、帯状部材がねじれる
ことなく安定した状態で鋼柱の開口端に係止させること
ができる。ADVANTAGE OF THE INVENTION According to the connection structure of the steel column which concerns on this invention, and the welding backing metal fitting used for it, a square pillar-shaped steel is made in the state which paired the front-end | tips of the welding backing metal fitting which is U-shaped entirely. Positioning and temporary fixing of the welding backing metal fitting can be performed easily and accurately by fitting it from the opening of the pillar and locking the projection to the corner of the steel pillar to project one end of the strip-shaped member. Since the belt-shaped member can be twisted,
Since the welding backing metal fittings can be projected to an equal length on each side of the steel column, and the entire welding backing metal fitting is U-shaped, Since the strip-shaped member is hard to twist when it is fitted into the inner surface of the steel column, the strip-shaped member is provided at a position where it can be locked to the corner of the prismatic steel column. Can be locked to the open end of the steel column in a stable state without being twisted.
また、全体をＬの字形状とし、この一対の先端同士を対
面させた状態で角柱状の鋼柱内面に当接しうる大きさに
し、鋼柱の角部に係止しうる位置に突部を設けた溶接用
裏当て金具を用いた場合には、Ｌの字形状の帯状部材を
やや外方に開いた状態で鋼柱内に嵌入することにより、
鋼柱内面に密着させた状態で位置決めすることができ
る。In addition, the entire shape is L-shaped, and the projections are provided at positions where they can be locked to the corners of the steel column, with the pair of tips being in a size capable of abutting against the inner surface of the prismatic steel column in a state of facing each other. When the provided backing metal fitting for welding is used, by fitting the L-shaped strip-shaped member into the steel column in a state of being slightly outwardly opened,
It can be positioned in close contact with the inner surface of the steel column.
更に、帯状部材の一側端側の表面にテーパー部を設け、
鋼柱開口端に突部で係止させたときに該テーパー部の他
側端側の一部が鋼柱内に位置する位置関係に設定されて
おり、鋼柱開口部に突部で係止させたときに該テーパー
部の他側端側の一部が鋼柱内に位置する位置関係に設定
しているため、単に板状の溶接用裏当て金具に比べて、
もし溶接の時に気泡が発生しても、その気泡が鋼柱内面
と溶接用裏当て金具のテーパー部の他側端側の一部の間
に位置することとなり、母材の材料厚から気泡が外部に
それるため、溶接部への悪影響を少なくでき、強度を所
定の状態で維持することができる。Furthermore, a taper portion is provided on the surface of one end of the belt-shaped member,
When the projection is locked to the opening end of the steel column, a part of the other end of the taper part is positioned inside the steel column, and the projection is locked to the opening of the steel column. Since a part of the other end side of the taper portion is set in the steel column when set, compared to a plate-shaped backing metal fitting for welding,
Even if bubbles are generated during welding, the bubbles will be located between the inner surface of the steel column and a part of the other end of the taper part of the backing metal for welding. Since it is deflected to the outside, it is possible to reduce adverse effects on the welded portion and maintain strength in a predetermined state.
更に、溶接用裏当て金具の突部を鋼柱の角部に係止する
位置に設け、溶接用裏当て金具の変形しにくい角部で支
持することとなるので、溶接による溶接用裏当て金具の
変形を防止することができる。Furthermore, since the projections of the backing metal fitting for welding are provided at the positions where they are locked to the corners of the steel column, and they are supported by the corners of the backing metal fitting for welding that are difficult to deform, the backing metal fitting for welding Can be prevented from being deformed.
第１図は鋼柱の連結構造体の斜視図、第２図は鋼柱の連
結構造体の組み立て前の分解斜視図、第３図は鋼柱の連
結構造体の要部縦断面図、第４図（イ）は第１実施例の
溶接用裏当て金具の斜視図、第４図（ロ）は第２実施例
の溶接用裏当て金具の斜視図、第４図（ハ）は突部の縦
断面図、第５図（イ）は第３実施例の溶接用裏当て金具
の斜視図、第５図（ロ）は第４実施例の溶接用裏当て金
具の斜視図、第６図（イ）は第５実施例の溶接用裏当て
金具の斜視図、第６図（ロ）は第６実施例の溶接用裏当
て金具の平面図、第７図は第７実施例の溶接用裏当て金
具の斜視図、第８図（イ）はテーパー部を有しない溶接
用裏当て金具の当接状態を示す要部断面図、第８図
（ロ）は第７実施例の溶接用裏当て金具の当接状態を示
す要部断面図、第９図（イ）はコの字形状の溶接用裏当
て金具の寸法関係を示す平面図、第９図（ロ）はＬの字
形状の溶接用裏当て金具の寸法関係を示す平面図であ
る。 A:鋼柱の連結構造体 B:溶接用裏当て金具 1:鋼柱、2:ダイヤフラム 3:帯状部材、4:長辺部 5:短辺部、6:テーパー部 7:角部、8:突部 9:開口部 11:一方の辺、12:他方の辺 13:先端、14:横切込部 15:縦切込部、16:係止部 17:切断部、18:テーパー部FIG. 1 is a perspective view of a steel column connection structure, FIG. 2 is an exploded perspective view of a steel column connection structure before assembly, and FIG. 3 is a longitudinal sectional view of a main part of the steel column connection structure. 4 (a) is a perspective view of the welding backing metal fitting of the first embodiment, FIG. 4 (b) is a perspective view of the welding backing metal fitting of the second embodiment, and FIG. 4 (c) is a protrusion. FIG. 5 (a) is a perspective view of the welding backing metal fitting of the third embodiment, and FIG. 5 (b) is a perspective view of the welding backing metal fitting of the fourth embodiment. (A) is a perspective view of the backing metal fitting for welding of the fifth embodiment, FIG. 6 (B) is a plan view of the backing metal fitting for welding of the sixth embodiment, and FIG. 7 is for welding of the seventh embodiment. FIG. 8 (a) is a perspective view of the backing metal fitting, FIG. 8 (a) is a cross-sectional view of an essential part showing a contact state of the backing metal fitting for welding having no tapered portion, and FIG. 8 (b) is the welding backing of the seventh embodiment. FIG. 9 is a cross-sectional view of essential parts showing the contact state of the metal fittings. B) is a plan view showing the dimensional relationship of the welding backing metal U-shaped, FIG. 9 (b) is a plan view showing the dimensional relationship of the welding backing bracket-shaped L. A: Steel column connection structure B: Welding backing metal fitting 1: Steel column, 2: Diaphragm 3: Band member, 4: Long side part 5: Short side part, 6: Tapered part 7: Corner part, 8: Projection 9: Opening 11: One side, 12: The other side 13: Tip, 14: Horizontal cut 15: Vertical cut, 16: Lock 17: Cut, 18: Taper
Claims (4)
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けた溶接用裏当て金
具を、鋼柱の開口部より嵌入して該突部で係止させた状
態で、該溶接用裏当て金具の一側端にダイヤフラムを位
置させ、ダイヤフラムと鋼柱とを溶接することにより鋼
柱を上下に連接してなる鋼柱の連結構造体。1. A band-shaped member is used to form a U-shape as a whole,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. With the welding backing metal fitting fitted into the opening of the steel column and locked by the projection, the diaphragm is positioned at one end of the welding backing metal fitting, and the diaphragm and the steel column are joined together. A connected structure of steel columns that is formed by connecting steel columns vertically by welding.
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けた溶接用裏当て金
具を、鋼柱の開口部より嵌入して該突部で係止させた状
態で、該溶接用裏当て金具の一側端にダイヤフラムを位
置させ、ダイヤフラムと鋼柱とを溶接することにより鋼
柱を上下に連接してなる鋼柱の連結構造体。2. A belt-shaped member is used to form an L-shape as a whole,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. With the welding backing metal fitting fitted into the opening of the steel column and locked by the projection, the diaphragm is positioned at one end of the welding backing metal fitting, and the diaphragm and the steel column are joined together. A connected structure of steel columns that is formed by connecting steel columns vertically by welding.
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けた溶接用裏当て金
具。3. A strip-shaped member is used to make the whole U-shaped,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. Backing metal fittings for welding.
この一対の先端同士を対面させた状態で角柱状の鋼柱内
面に当接しうる大きさにし、帯状部材の一側端側の表面
にテーパー部を設け、鋼柱の開口部より嵌入したときに
該テーパー部の他側端側の一部が鋼柱内に位置するとと
もに、一側端がこの開口部口端より突出するように鋼柱
の角部に係止しうる位置に突部を設けた溶接用裏当て金
具。4. A belt-shaped member is used to form an L-shape as a whole,
The pair of tips are made to have a size capable of abutting the inner surface of a prismatic steel column with the tips facing each other, and a taper portion is provided on the surface on one end side of the strip-shaped member, and when fitted from the opening of the steel column. A part of the other end side of the tapered portion is located inside the steel column, and a protrusion is provided at a position where one side end can be locked to a corner of the steel column so as to protrude from the mouth end of the opening. Backing metal fittings for welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990060318U JPH0726061Y2 (en) | 1990-06-06 | 1990-06-06 | Steel column connection structure and welding backing metal fittings used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990060318U JPH0726061Y2 (en) | 1990-06-06 | 1990-06-06 | Steel column connection structure and welding backing metal fittings used therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0422175U JPH0422175U (en) | 1992-02-24 |
| JPH0726061Y2 true JPH0726061Y2 (en) | 1995-06-14 |
Family
ID=31587579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990060318U Expired - Fee Related JPH0726061Y2 (en) | 1990-06-06 | 1990-06-06 | Steel column connection structure and welding backing metal fittings used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726061Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017087274A (en) * | 2015-11-12 | 2017-05-25 | フルサト工業株式会社 | Column backing metal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61167289U (en) * | 1985-04-08 | 1986-10-17 | ||
| JPH01172493U (en) * | 1988-05-14 | 1989-12-06 | ||
| JPH0253830U (en) * | 1988-10-13 | 1990-04-18 | ||
| JP2763640B2 (en) * | 1990-01-19 | 1998-06-11 | 住金精圧品工業株式会社 | Backing metal for welding square pipe material |
-
1990
- 1990-06-06 JP JP1990060318U patent/JPH0726061Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0422175U (en) | 1992-02-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |