JPH09217420A - Connection structure of square steel pipe column and wide flange-shaped steel beam - Google Patents
Connection structure of square steel pipe column and wide flange-shaped steel beamInfo
- Publication number
- JPH09217420A JPH09217420A JP2757996A JP2757996A JPH09217420A JP H09217420 A JPH09217420 A JP H09217420A JP 2757996 A JP2757996 A JP 2757996A JP 2757996 A JP2757996 A JP 2757996A JP H09217420 A JPH09217420 A JP H09217420A
- Authority
- JP
- Japan
- Prior art keywords
- steel beam
- shaped steel
- shaped
- flange
- welded
- 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.)
- Pending
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビル等の鉄骨構造
物における角形鋼管柱とＨ形鋼梁との接合構造に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a rectangular steel tube column and an H-shaped steel beam in a steel structure such as a building.
【０００２】[0002]
【従来の技術】従来、角形鋼管柱とＨ形鋼梁との接合構
造には、例えば図１１に示すようなものがあった。すな
わち、角形鋼管柱１０１に上下一対のダイヤフラム１０
２が設けられている。ダイヤフラム１０２は角形鋼管柱
１０１の周囲に約２５mm程度張り出した張出部１０３を
有する正方形の鋼板であって、このダイヤフラム１０２
と角形鋼管柱１０１とは、角形鋼管柱１０１を切断して
ダイヤフラム１０２を介装し、角形鋼管柱１０１の切断
面とダイヤフラム１０２の上下両面とを溶接して一体化
されている。また、上下のダイヤフラム１０２間の角形
鋼管柱１０１の側面にはリブ板１０４が溶接されてい
る。2. Description of the Related Art Conventionally, for example, a joint structure of a square steel tubular column and an H-shaped steel beam has been shown in FIG. That is, a pair of upper and lower diaphragms 10 is attached to the rectangular steel pipe column 101.
2 are provided. The diaphragm 102 is a square steel plate having a projecting portion 103 projecting about 25 mm around the square steel tubular column 101.
The rectangular steel tube column 101 and the rectangular steel tube column 101 are integrated by cutting the rectangular steel tube column 101 and interposing a diaphragm 102, and welding the cut surface of the rectangular steel tube column 101 and the upper and lower surfaces of the diaphragm 102. A rib plate 104 is welded to the side surface of the rectangular steel pipe column 101 between the upper and lower diaphragms 102.
【０００３】また、Ｈ形鋼梁１０５においては、上下の
フランジ１０６の端部を斜めに切削加工して先端に向か
って細くなった開先部１０７が形成されるとともに、こ
の開先部１０７近傍のウェブ１０８の上下隅部を扇形に
切り欠いてスカラップ１０９が形成されている。Further, in the H-shaped steel beam 105, the groove 107 is formed by slantingly cutting the ends of the upper and lower flanges 106, and the vicinity of the groove 107 is formed. Scallops 109 are formed by cutting out the upper and lower corners of the web 108 in a fan shape.
【０００４】そして、工事現場において角形鋼管柱１０
１とＨ形鋼梁１０５とを接合する際には、ボルト１１０
によりリブ板１０４とウェブ１０８とを接合したのち、
張出部１０３と開先部１０７との突き合わせ部分の下方
に裏当金１１１をセットし、張出部１０３と開先部１０
７との間に形成されたレ形開先を溶接で埋めて、上下の
ダイヤフラム１０２と上下のフランジ１０６とをそれぞ
れ接合している。Then, at the construction site, the square steel pipe pillar 10 is used.
1 and the H-shaped steel beam 105 are joined, the bolt 110
After joining the rib plate 104 and the web 108 with
The backing metal 111 is set below the abutting portion of the overhang portion 103 and the groove portion 107, and the overhang portion 103 and the groove portion 10 are set.
7 is filled with welding to join the upper and lower diaphragms 102 and the upper and lower flanges 106, respectively.
【０００５】[0005]
【発明が解決しようとする課題】ダイヤフラム１０２と
Ｈ形鋼梁１０５のフランジ１０６との接合部分は、溶接
熱による金属劣化や、スカラップ１０９等の形状変化部
への応力集中により、他の部分よりも破壊しやすくなっ
ている。The joint portion between the diaphragm 102 and the flange 106 of the H-shaped steel beam 105 is better than other portions due to metal deterioration due to welding heat and stress concentration on the shape change portion such as the scallop 109. Is also easy to destroy.
【０００６】ところが、前記した従来の角形鋼管柱とＨ
形鋼梁との接合構造では、ダイヤフラム１０２とフラン
ジ１０６との接合部分が角形鋼管柱１０１に接近した位
置にあって、引張力やせん断力及び曲げモーメント等の
大きな力が加わるために、例えば大きな地震の際など
に、前記接合部分が破壊する虞があった。However, the above-mentioned conventional rectangular steel pipe column and H
In the joint structure with the shaped steel beam, since the joint portion between the diaphragm 102 and the flange 106 is located close to the rectangular steel tube column 101, and a large force such as a tensile force, a shearing force, and a bending moment is applied, for example, it is large. At the time of an earthquake or the like, there was a risk that the joint portion would be destroyed.
【０００７】特に、Ｈ形鋼梁１０５にスカラップ１０９
を形成する際に、ウェブ１０８とフランジ１０６との間
のアールの付いた部分（以下「アール部」という）まで
が削り取られていて、Ｈ形鋼梁１０５の断面積が図１１
に矢印ａで示したスカラップ１０９の端部で急に変化し
ているので、矢印ａで示した位置のフランジ１０６に応
力が集中して、この部分の亀裂や破断を招く危険性が高
かった。Particularly, the scallop 109 is attached to the H-shaped steel beam 105.
11 is formed by cutting up to the rounded portion between the web 108 and the flange 106 (hereinafter referred to as “the rounded portion”), the cross-sectional area of the H-shaped steel beam 105 is shown in FIG.
Since there is a sudden change at the end of the scallop 109 indicated by the arrow a, the stress is concentrated on the flange 106 at the position indicated by the arrow a, and there is a high risk of causing cracks or breakage of this portion.
【０００８】また、ダイヤフラム１０２の張出部１０３
には充分な幅がないので、ここを開先加工するのは困難
であり、さらに、溶接の際に開先部の先端面に沿う方向
で斜め上方から溶接トーチを当てる関係上、仮に張出部
１０３に開先部を形成できたとしても、今度は角形鋼管
柱１０１が邪魔になって溶接トーチを当てられないこと
になる。このような理由から従来はＨ形鋼梁１０５のフ
ランジ１０６に開先部１０７を設けていたのであるが、
Ｈ形鋼梁１０５は長くて重いために容易に移動すること
ができず、そのため開先加工の作業が困難なものとなっ
ていた。Further, the overhang portion 103 of the diaphragm 102.
Since there is not enough width in the groove, it is difficult to process the groove here.Furthermore, because the welding torch is applied obliquely from above in the direction along the tip surface of the groove during welding, Even if the groove portion can be formed in the portion 103, this time, the square steel tube column 101 interferes and the welding torch cannot be applied. For this reason, the groove portion 107 is conventionally provided on the flange 106 of the H-shaped steel beam 105.
Since the H-shaped steel beam 105 is long and heavy, the H-shaped steel beam 105 cannot be easily moved, which makes the work of the groove processing difficult.
【０００９】本発明は以上のような問題に鑑みてなされ
たものであって、接合強度を高めることができるととも
に、開先加工も容易に行なえる、角形鋼管柱とＨ形鋼梁
との接合構造の提供を目的とするものである。The present invention has been made in view of the above-mentioned problems, and it is possible to increase the joining strength and easily perform the groove processing, and to join the square steel tube column and the H-shaped steel beam. The purpose is to provide a structure.
【００１０】[0010]
【課題を解決するための手段】前記の目的を達成するた
め、本発明は、角形鋼管柱の側面とＨ形鋼梁の端部とを
接合する接合構造であって、角形鋼管柱に、この角形鋼
管柱の周囲に水平に張り出した張出部を有する上下一対
のダイヤフラムと、上下のダイヤフラム間の角形鋼管柱
の側面に垂直に設けられたリブ板とを備え、このリブ板
とＨ形鋼梁のウェブとをボルト接合するとともに、突き
合わされた上下のダイヤフラムとＨ形鋼梁の上下のフラ
ンジとをそれぞれ溶接するものにおいて、前記ダイヤフ
ラムの張出部に外方へ延びる延長部を一体に形成すると
ともに、この延長部の先端を開先加工して、突き合わさ
れた前記Ｈ形鋼梁のフランジ端部と溶接するようにした
ものである。In order to achieve the above-mentioned object, the present invention provides a joining structure for joining a side surface of a rectangular steel pipe column and an end portion of an H-shaped steel beam to the rectangular steel pipe column. The rectangular steel tube column is provided with a pair of upper and lower diaphragms having horizontally projecting portions, and a rib plate vertically provided on a side surface of the rectangular steel tube column between the upper and lower diaphragms. In a structure in which a web of a beam is bolted and upper and lower diaphragms butted to each other and an upper and lower flanges of an H-shaped steel beam are welded to each other, an extension portion extending outward is integrally formed on an overhang portion of the diaphragm. At the same time, the tip of this extension is groove-processed and welded to the abutted flange end of the H-shaped steel beam.
【００１１】また、前記の構成において、リブ板外端の
上下隅部を加工して上下のダイヤフラムの延長部に臨む
Ｋ形開先を形成するとともに、ほぼＫ形開先から角形鋼
管柱までのリブ板の上下辺を上下のダイヤフラムに溶接
し、Ｈ形鋼梁の接合にあたりＫ形開先を溶接で埋めるよ
うにしたものである。Further, in the above construction, the upper and lower corners of the outer end of the rib plate are processed to form a K-shaped groove facing the extended portions of the upper and lower diaphragms, and from the almost K-shaped groove to the rectangular steel pipe column. The upper and lower sides of the rib plate are welded to the upper and lower diaphragms so that the K-shaped groove is welded when joining the H-shaped steel beam.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。 （実施の形態１）図１〜図５は実施の形態１を示してい
る。図１に示すように、角形鋼管柱１は鋼板を加工して
なる上下一対のダイヤフラム２，３を備えている。上側
のダイヤフラム２には、角形鋼管柱１の周囲に約２５mm
程度張り出した張出部２１と、張出部２１からさらに約
１８０mm程度外方へ延びる延長部２２とが一体に形成さ
れている。延長部２２は、角形鋼管柱１の各側面に対応
して、延びる向きが９０°ずつ異なるものが４つ形成さ
れている。また、下側のダイヤフラム３にも同様に張出
部３１と延長部３２とが形成されている。Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 5 show the first embodiment. As shown in FIG. 1, a rectangular steel pipe pillar 1 includes a pair of upper and lower diaphragms 2 and 3 formed by processing a steel plate. The upper diaphragm 2 is approximately 25 mm around the square steel tube column 1.
An overhanging portion 21 that is approximately overhanging and an extension portion 22 that extends outwardly by approximately 180 mm from the overhanging portion 21 are integrally formed. Four extension portions 22 are formed corresponding to each side surface of the rectangular steel tube column 1 and extending in different directions by 90 °. Further, the lower diaphragm 3 is also formed with an overhang portion 31 and an extension portion 32.
【００１３】各延長部２２，３２の先端部分は後述する
Ｈ形鋼梁のフランジとほぼ同じ幅に形成されるととも
に、延長部２２，３２の基部にはアール２２ａ，３２ａ
が付けられていて、張出部２１，３１との間が滑らかに
つながっている。また、延長部２２，３２の先端部分を
斜めに切削加工して、先端に向かって細くなった開先部
２３，３３が、それぞれ形成されている。The tip portions of the extension portions 22 and 32 are formed to have substantially the same width as the flange of the H-shaped steel beam described later, and the base portions of the extension portions 22 and 32 are rounded 22a and 32a.
Is attached, and the overhanging portions 21 and 31 are smoothly connected. Further, the tip portions of the extension portions 22 and 32 are obliquely cut to form groove portions 23 and 33 which are tapered toward the tips.
【００１４】なお、ダイヤフラム２，３は、Ｈ形鋼梁の
フランジの厚みが異なる場合にも対応できるように、充
分な厚みを有している。そして、延長部２２の先端縁に
沿った部分を下方から削り取って切欠部２４が形成され
るとともに、延長部３２の先端縁に沿った部分を上方か
ら削り取って切欠部３４が形成されており、これによ
り、延長部２２，３２の先端部分の厚みが、接合される
Ｈ形鋼梁のフランジの厚みに合わせられている。The diaphragms 2 and 3 have a sufficient thickness so that they can cope with the case where the flanges of the H-shaped steel beam have different thicknesses. Then, a portion along the tip edge of the extension portion 22 is cut off from below to form a cutout portion 24, and a portion along the tip edge of the extension portion 32 is cut off from above to form a cutout portion 34, Thereby, the thickness of the tip portions of the extension portions 22 and 32 is matched with the thickness of the flange of the H-shaped steel beam to be joined.
【００１５】また、ダイヤフラム２の各延長部２２とダ
イヤフラム３の各延長部３２との間に、角形鋼管柱１の
各側面及びダイヤフラム２，３に垂直なリブ板４がそれ
ぞれ設けられている。各リブ板４には、その外端の上下
隅部を扇形に切り欠いたスカラップ４１，４２と、Ｈ形
鋼梁の接合時に用いるボルト孔４３とが、それぞれ形成
されている。Further, between each extension 22 of the diaphragm 2 and each extension 32 of the diaphragm 3, rib plates 4 perpendicular to the side surfaces of the rectangular steel pipe column 1 and the diaphragms 2 and 3 are provided. Each rib plate 4 is provided with scallops 41 and 42, which are formed by cutting out the upper and lower corners of the outer end thereof in a fan shape, and a bolt hole 43 used when joining the H-shaped steel beams.
【００１６】なお、以上の各構成要素は工場において以
下のようにして接合されている。すなわち、角形鋼管柱
１を２ヵ所で切断し、予め開先部２３，３３及び切欠部
２４，３４等を形成したダイヤフラム２，３を切断箇所
に介装して、角形鋼管柱１の切断面とダイヤフラム２，
３の上下両面とをそれぞれ溶接する。The above components are joined in the factory as follows. That is, the square steel pipe column 1 is cut at two places, and the diaphragms 2 and 3 in which the groove portions 23, 33 and the cutout portions 24, 34 are formed in advance are interposed at the cut places, and the cut surface of the square steel pipe column 1 is cut. And diaphragm 2,
Weld the upper and lower surfaces of No. 3 respectively.
【００１７】また、予めスカラップ４１，４２及びボル
ト孔４３を形成したリブ板４をダイヤフラム２とダイヤ
フラム３との間に挿入し、リブ板４の一側辺を角形鋼管
柱１の側面に溶接するとともに、リブ板４の上下辺を上
下のダイヤフラム２，３に、それぞれ溶接する。なお、
この際、スカラップ４１，４２の端部から約１５mm程度
の距離（図４に符号イで示す）を非溶接とし、この非溶
接部分を除いた角形鋼管柱１までのリブ板４の上下辺を
ダイヤフラム２，３に溶接（図４に符号ロで示す）す
る。Further, the rib plate 4 in which the scallops 41, 42 and the bolt holes 43 are formed in advance is inserted between the diaphragm 2 and the diaphragm 3, and one side of the rib plate 4 is welded to the side surface of the rectangular steel pipe column 1. At the same time, the upper and lower sides of the rib plate 4 are welded to the upper and lower diaphragms 2 and 3, respectively. In addition,
At this time, a distance of about 15 mm from the ends of the scallops 41, 42 (indicated by reference character a in FIG. 4) is non-welded, and the upper and lower sides of the rib plate 4 up to the rectangular steel pipe column 1 excluding this non-welded portion are Welded to the diaphragms 2 and 3 (indicated by symbol B in FIG. 4).
【００１８】次いで、図２〜図５に基づき、工事現場に
おける角形鋼管柱とＨ形鋼梁との接合について説明す
る。符号５は、上下のフランジ５１，５２と、これらの
フランジ５１，５２を連結するウェブ５３とを備えたＨ
形鋼梁を示している。なお、このＨ形鋼梁５としては、
予め工場において所定の長さに切断するとともに、ウェ
ブ５３の端部近傍に角形鋼管柱１との接合時に用いるボ
ルト孔（不図示）を形成したものを用いる。Next, the joining of the rectangular steel tube column and the H-shaped steel beam at the construction site will be described with reference to FIGS. Reference numeral 5 is an H including upper and lower flanges 51 and 52 and a web 53 connecting these flanges 51 and 52.
A shaped steel beam is shown. As the H-shaped steel beam 5,
It is used by cutting it into a predetermined length in a factory in advance and forming a bolt hole (not shown) used for joining with the rectangular steel tube column 1 in the vicinity of the end of the web 53.
【００１９】接合に際しては、図２に示すように、先ず
スプライスプレート６とボルト７及びナットとを用い
て、角形鋼管柱１側のリブ板４とＨ形鋼梁５のウェブ５
３とを接合する。At the time of joining, as shown in FIG. 2, first, a rib plate 4 on the side of the rectangular steel pipe column 1 and a web 5 of an H-shaped steel beam 5 are used by using a splice plate 6, bolts 7 and nuts.
Join 3 and.
【００２０】次いで、図４(a) に示すように、開先部２
３とフランジ５１との突き合わせ部分の下方に裏当金７
１をセットする。裏当金７１は図５に示すように、全体
が矩形断面の直棒状であって、その長手方向の中央部分
の一側辺にＨ形鋼梁５のフランジ５１とウェブ５３との
間のアール部５４（図４(a) 参照）を逃がすための切欠
部７１ａが形成されたものである。また、図４(b) に示
すように、開先部３３とフランジ５２との突き合わせ部
分の下方に裏当金７２をセットする。この裏当金７２は
切欠部が形成されていない、単なる直棒状のものであ
る。Next, as shown in FIG. 4 (a), the groove 2
The backing metal 7 is provided below the abutting portion between the flange 3 and the flange 51.
Set 1 As shown in FIG. 5, the backing plate 71 has a straight rod shape with a rectangular cross section as a whole, and has a radius between the flange 51 of the H-shaped steel beam 5 and the web 53 on one side of the central portion in the longitudinal direction. A cutout portion 71a for letting out the portion 54 (see FIG. 4A) is formed. Further, as shown in FIG. 4B, a backing plate 72 is set below the abutting portion between the groove 33 and the flange 52. The backing plate 72 is a straight rod-shaped member having no notch.
【００２１】そして、突き合わされた開先部２３とフラ
ンジ５１端部との間に形成されたレ形開先を図４(a) に
二点鎖線ハで示すように溶接で埋めて、上側のダイヤフ
ラム２とフランジ５１とを接合するとともに、開先部３
３とフランジ５２との間に形成されたレ形開先を図４
(b) に二点鎖線ニで示すように溶接で埋めて、下側のダ
イヤフラム３とフランジ５２とを接合する。Then, the square groove formed between the abutted groove portion 23 and the end portion of the flange 51 is filled with welding as shown by a chain double-dashed line in FIG. The diaphragm 2 and the flange 51 are joined together, and the groove 3
3 and the flange 52 formed in FIG.
The lower diaphragm 3 and the flange 52 are joined by filling them with welding as shown by the two-dot chain line D in (b).
【００２２】以上説明したように、この実施の形態１で
は、ダイヤフラム２，３に張出部２１，３１から外方へ
延びる延長部２２，３２を一体に形成するとともに、こ
の延長部２２，３２の先端を開先加工して、Ｈ形鋼梁５
のフランジ５１，５２端部と溶接している。したがっ
て、角形鋼管柱１に接近した位置における引張力やせん
断力及び曲げモーメント等の大きな力はダイヤフラム
２，３に直接加わることになり、溶接熱による金属劣化
や形状変化による応力集中で破壊しやすくなるダイヤフ
ラム２，３とフランジ５１，５２との接合部分には従来
ほどの大きな力が加わらないため、前記接合部分の破壊
を防止できて、角形鋼管柱１とＨ形鋼梁５との接合強度
を高めることができる。As described above, in the first embodiment, the extension portions 22 and 32 extending outward from the overhang portions 21 and 31 are formed integrally with the diaphragms 2 and 3, and the extension portions 22 and 32 are also formed. Beveling the tip of the H-shaped steel beam 5
Are welded to the ends of the flanges 51 and 52. Therefore, a large force such as a tensile force, a shearing force, and a bending moment at a position close to the rectangular steel pipe column 1 is directly applied to the diaphragms 2 and 3, and the metal is easily deteriorated by welding heat or stress concentration due to a shape change easily causes destruction. Since the joints between the diaphragms 2 and 3 and the flanges 51 and 52 are not subjected to a large force as in the conventional case, the joints can be prevented from being broken, and the joint strength between the square steel tube column 1 and the H-shaped steel beam 5 can be prevented. Can be increased.
【００２３】また、スカラップをＨ形鋼梁に形成した場
合には、前記したようにスカラップの端部における断面
積の変化が大きくなるが、この実施の形態１ではスカラ
ップ４１，４２をリブ板４に形成しているので断面積の
変化は比較的小さいうえに、リブ板４とダイヤフラム
２，３との間の溶接ロの端部と、スカラップ４１，４２
の端部とは距離イだけ離れているので、スカラップ４
１，４２の端部に臨む位置のダイヤフラム２，３への応
力集中を軽減することができ、この理由からもダイヤフ
ラム２，３とフランジ５１，５２との接合部分の破壊を
防止できる。Further, when the scallop is formed on the H-shaped steel beam, the change in the cross-sectional area at the end of the scallop becomes large as described above. In the first embodiment, however, the scallops 41 and 42 are attached to the rib plate 4. Since the cross-sectional area is relatively small, the end portions of the welding rod between the rib plate 4 and the diaphragms 2 and 3 and the scallops 41 and 42 are formed.
Since it is away from the end of the
It is possible to reduce stress concentration on the diaphragms 2 and 3 at positions facing the ends of the diaphragms 1 and 42, and for this reason also, it is possible to prevent breakage of the joint portion between the diaphragms 2 and 3 and the flanges 51 and 52.
【００２４】さらに、延長部２２，３２の先端部分は、
溶接されるフランジ５１，５２とほぼ同じ幅に形成され
ているので、この理由からも接合部分への応力集中を軽
減でき、また、延長部２２，３２の基部に設けられたア
ール２２ａ，３２ａにより、延長部２２，３２と張出部
２１，３１との境界部分への応力集中も軽減できる。Further, the tips of the extension portions 22 and 32 are
Since the flanges 51 and 52 to be welded are formed to have substantially the same width, the stress concentration at the joint can be reduced for this reason as well, and the radiuses 22a and 32a provided at the bases of the extension portions 22 and 32 can be used. It is also possible to reduce stress concentration at the boundary between the extension portions 22 and 32 and the overhang portions 21 and 31.
【００２５】さらにまた、開先部２３，３３はダイヤフ
ラム２，３の延長部２２，３２の先端に形成されている
ので、開先部２３，３３の先端面に沿う方向で、斜め上
方から溶接トーチを当てて溶接する際に、角形鋼管柱１
が邪魔になることもない。Furthermore, since the groove portions 23 and 33 are formed at the tips of the extension portions 22 and 32 of the diaphragms 2 and 3, welding is performed obliquely from above in the direction along the tip surfaces of the groove portions 23 and 33. When welding by applying a torch, square steel pipe column 1
Does not get in the way.
【００２６】加えて、ダイヤフラム２，３の開先加工や
リブ板４のスカラップ加工は、角形鋼管柱１と溶接され
る前の、単体のダイヤフラム２，３及びリブ板４に対し
て行なえるので、長くて重いＨ形鋼梁を加工していた従
来に比べて、加工作業が極めて容易に行なえる。In addition, the groove forming of the diaphragms 2 and 3 and the scalloping of the rib plate 4 can be performed on the single diaphragms 2 and 3 and the rib plate 4 before being welded to the rectangular steel pipe column 1. The machining work can be performed extremely easily as compared with the conventional method of machining a long and heavy H-shaped steel beam.
【００２７】（実施の形態２）図６〜図１０は実施の形
態２を示している。この実施の形態２ではリブ板４’外
端の上下隅部に、前記実施の形態１におけるスカラップ
４１，４２に代えて、開先部４４，４５が形成されてい
る。(Second Embodiment) FIGS. 6 to 10 show a second embodiment. In the second embodiment, groove portions 44, 45 are formed at the upper and lower corners of the outer end of the rib plate 4'instead of the scallops 41, 42 in the first embodiment.
【００２８】図９(a) に示すように、上側の開先部４４
は、リブ板４’外端の上隅部を両面から斜めに切削加工
して、上方に向かって細くなる略Ｖ字状断面に形成され
ている。また、図９(b) に示すように、下側の開先部４
５は、リブ板４’外端の下隅部を両面から斜めに切削加
工して、下方に向かって細くなる略逆Ｖ字状断面に形成
されている。そして、このような開先部４４，４５が形
成されたリブ板４’をダイヤフラム２，３間に挟み込む
ことにより、ダイヤフラム２の延長部２２に臨むＫ形開
先８１と、ダイヤフラム３の延長部３２に臨むＫ形開先
８２とが、それぞれ形成されている。As shown in FIG. 9 (a), the upper groove portion 44 is formed.
Is formed into a substantially V-shaped cross section that becomes narrower upward by cutting the upper corner of the outer edge of the rib plate 4'obliquely from both sides. Further, as shown in FIG. 9 (b), the lower groove portion 4
5 is formed in a substantially inverted V-shaped cross section that is tapered downward from the lower corner of the outer end of the rib plate 4'to taper downward. Then, by sandwiching the rib plate 4 ′ having the groove portions 44 and 45 formed between the diaphragms 2 and 3, the K-shaped groove 81 facing the extension portion 22 of the diaphragm 2 and the extension portion of the diaphragm 3. A K-shaped groove 82 facing 32 is formed respectively.
【００２９】なお、開先部４４，４５を除いたリブ板
４’の形状は実施の形態１におけるリブ板４と同様であ
り、角形鋼管柱１及びダイヤフラム２，３の形状や、相
互の接合のしかたも同様である。したがって、ダイヤフ
ラム２，３の延長部２２，３２には実施の形態１と同様
の切欠部２４，３４が形成されており、これらの切欠部
２４，３４によって、Ｋ形開先８１，８２のルート間隔
（開先部４４，４５の先端と延長部２２，３２との隙
間）が確保されることになっている（図９参照）。The shape of the rib plate 4'excluding the groove portions 44 and 45 is the same as that of the rib plate 4 in the first embodiment, and the shapes of the rectangular steel pipe column 1 and the diaphragms 2 and 3 and the mutual connection thereof. The method is the same. Therefore, the notches 24 and 34 similar to those in the first embodiment are formed in the extension portions 22 and 32 of the diaphragms 2 and 3, and the roots of the K-shaped grooves 81 and 82 are formed by these notches 24 and 34. A space (a gap between the tips of the groove portions 44 and 45 and the extension portions 22 and 32) is secured (see FIG. 9).
【００３０】次いで、図７〜図１０に基づき、工事現場
における角形鋼管柱とＨ形鋼梁との接合について説明す
る。先ず実施の形態１と同様に、スプライスプレート６
とボルト７及びナットとを用いて、角形鋼管柱１側のリ
ブ板４とＨ形鋼梁５のウェブ５３とを接合する。Next, with reference to FIGS. 7 to 10, the joining of the rectangular steel tube column and the H-shaped steel beam at the construction site will be described. First, as in the first embodiment, the splice plate 6
The rib plate 4 on the side of the rectangular steel pipe column 1 and the web 53 of the H-shaped steel beam 5 are joined by using the bolt 7 and the nut.
【００３１】そして、図８(a) に示すように、開先部２
３とフランジ５１との突き合わせ部分の下方に裏当金７
３をセットする。図１０に示すように、裏当金７３はリ
ブ板４’の両側面からセットできるように長手方向の中
央で２分割されるとともに、分割箇所の一方の側辺にＨ
形鋼梁５のアール部５４を逃がすための切欠部７３ａ
が、他方の側辺に後述するＫ形開先８１の溶接部分を逃
がすための切欠部７３ｂが、それぞれ形成されたもので
ある。また、図８(b) に示すように、開先部３３とフラ
ンジ５２との突き合わせ部分の下方に、実施の形態１と
同様の裏当金７２をセットする。Then, as shown in FIG. 8 (a), the groove 2
The backing metal 7 is provided below the abutting portion between the flange 3 and the flange 51.
Set 3 As shown in FIG. 10, the backing plate 73 is divided into two at the center in the longitudinal direction so that it can be set from both side surfaces of the rib plate 4 ', and H is provided on one side of the divided portion.
Notch 73a for letting out the rounded portion 54 of the shaped steel beam 5
However, a notch portion 73b for letting a welded portion of a K-shaped groove 81, which will be described later, escape is formed on the other side. Further, as shown in FIG. 8B, a backing plate 72 similar to that of the first embodiment is set below the abutting portion of the groove 33 and the flange 52.
【００３２】そして、開先部２３とフランジ５１との間
に形成されたレ形開先を図８(a) に二点鎖線ハで示すよ
うに溶接で埋めて、上側のダイヤフラム２とフランジ５
１とを接合するとともに、開先部３３とフランジ５２と
の間に形成されたレ形開先を図８(b) に二点鎖線ニで示
すように溶接で埋めて、下側のダイヤフラム３とフラン
ジ５２とを接合する。Then, the square groove formed between the groove portion 23 and the flange 51 is filled with welding as shown by the chain double-dashed line C in FIG. 8 (a), and the upper diaphragm 2 and the flange 5 are filled.
1 is joined, and the rectangular groove formed between the groove 33 and the flange 52 is filled with welding as shown by the two-dot chain line d in FIG. 8 (b), and the lower diaphragm 3 And the flange 52 are joined.
【００３３】さらに、Ｋ形開先８１を図８(a) 及び図９
(a) に二点鎖線ホで示すように溶接で埋めるとともに、
Ｋ形開先８２を図８(b) 及び図９(b) に二点鎖線ヘで示
すように溶接で埋める。これにより、リブ板４’の上下
辺は、その全長にわたってダイヤフラム２，３と溶接さ
れたことになる。Further, the K-shaped groove 81 is shown in FIG. 8 (a) and FIG.
Fill it with welding as shown by the double-dashed line E in (a), and
The K-shaped groove 82 is filled with welding as shown by a two-dot chain line in FIGS. 8 (b) and 9 (b). As a result, the upper and lower sides of the rib plate 4'are welded to the diaphragms 2 and 3 over their entire length.
【００３４】前記実施の形態１においては、リブ板４に
形成されたスカラップ４１，４２が原因となって応力集
中が生じる虞があったが、この実施の形態２では、その
部分にＫ形開先８１，８２を形成するとともに、Ｈ形鋼
梁５の接合にあたってＫ形開先８１，８２を溶接で埋め
るようにしているので、スカラップに起因する応力集中
が無くなる。したがって、ダイヤフラム２，３とフラン
ジ５１，５２との接合部分の破壊がより一層防止でき
て、角形鋼管柱１とＨ形鋼梁５との接合強度をさらに高
めることができる。In the first embodiment, stress concentration may occur due to the scallops 41 and 42 formed on the rib plate 4, but in the second embodiment, a K-shaped opening is formed in that portion. Since the tips 81 and 82 are formed and the K-shaped grooves 81 and 82 are filled with welding when joining the H-shaped steel beam 5, stress concentration due to scallops is eliminated. Therefore, the joint portion between the diaphragms 2 and 3 and the flanges 51 and 52 can be further prevented from being broken, and the joint strength between the rectangular steel tube column 1 and the H-shaped steel beam 5 can be further enhanced.
【００３５】なお、以上の実施の形態１，２では角形鋼
管柱１の四方の側面の全てにＨ形鋼梁５を接合した場合
を示したが、一部の側面のみにＨ形鋼梁５を接続する場
合にも本発明が適用でき、かつ、この場合はＨ形鋼梁５
を接続する側面に対応する延長部２２，３２のみを設け
ておけばよいことは言うまでもない。In the above-described first and second embodiments, the case where the H-shaped steel beams 5 are joined to all the four side surfaces of the rectangular steel tubular column 1 has been described. The present invention can also be applied to the case of connecting the H-shaped steel beams 5 in this case.
It goes without saying that it is sufficient to provide only the extension portions 22 and 32 corresponding to the side surfaces connecting the.
【００３６】また、角形鋼管柱１の側面から延長部２
２，３２の先端までの距離は１５０〜３００mm程度とす
るのが好ましい。因みに、前記距離が１５０mmよりも短
いと、ダイヤフラムとフランジとの接合部分に加わる力
が大きくなって、この部分が破壊する危険が生じ、３０
０mmよりも長いと、角形鋼管柱１を工場から工事現場ま
で運搬する際に、突き出した延長部２２，３２が邪魔に
なって、運搬作業に支障を来すことになる。Further, the extension 2 is formed from the side surface of the rectangular steel pipe column 1.
The distance to the tips of 2, 32 is preferably about 150 to 300 mm. By the way, if the distance is shorter than 150 mm, the force applied to the joint portion between the diaphragm and the flange becomes large, and there is a risk of breaking this portion.
If it is longer than 0 mm, when the rectangular steel pipe column 1 is transported from the factory to the construction site, the projecting extension portions 22 and 32 become an obstacle and hinder the transportation work.
【００３７】[0037]
【発明の効果】以上説明したように、本発明に係る角形
鋼管柱とＨ形鋼梁との接合構造によれば、ダイヤフラム
の張出部に外方へ延びる延長部を一体に形成するととも
に、この延長部の先端を開先加工して、突き合わされた
前記Ｈ形鋼梁のフランジ端部と溶接するようにしたの
で、角形鋼管柱に接近した位置における引張力やせん断
力及び曲げモーメント等の大きな力はダイヤフラムに直
接加わることになり、溶接熱による金属劣化や形状変化
による応力集中で破壊しやすくなるダイヤフラムとフラ
ンジとの接合部分には従来ほどの大きな力が加わらな
い。したがって、ダイヤフラムとフランジとの接合部分
の破壊を防止できることになって、角形鋼管柱とＨ形鋼
梁との接合強度を高めることが可能となる。As described above, according to the joint structure of the rectangular steel tube column and the H-shaped steel beam according to the present invention, the extension of the diaphragm is integrally formed with the overhang portion of the diaphragm, and Since the tip of this extension is groove-processed and welded to the flange end of the H-shaped steel beam butted together, tensile force, shearing force, bending moment, etc. at a position close to the square steel pipe column A large force is directly applied to the diaphragm, and the joint between the diaphragm and the flange, which easily breaks due to stress concentration due to metal deterioration and shape change due to welding heat, does not receive a large force as in the past. Therefore, it is possible to prevent the joint portion between the diaphragm and the flange from being broken, and it is possible to increase the joint strength between the rectangular steel tube column and the H-shaped steel beam.
【００３８】また、開先部の先端面に沿った斜め方向か
ら溶接トーチを当てて溶接する際に角形鋼管柱が邪魔に
なることがなく、しかも、開先加工は角形鋼管柱と溶接
される前の単体のダイヤフラムに対して行なえるので、
長くて重いＨ形鋼梁を加工していた従来に比べて、加工
作業が極めて容易となる。Further, when welding is performed by applying a welding torch from an oblique direction along the tip end surface of the groove portion, the square steel pipe column does not become an obstacle, and the groove is welded to the square steel pipe column. Since it can be done for the previous single diaphragm,
Compared with the conventional method in which a long and heavy H-shaped steel beam is processed, the processing work becomes extremely easy.
【００３９】さらに、リブ板外端の上下隅部を加工して
上下のダイヤフラムの延長部に臨むＫ形開先を形成する
とともに、ほぼＫ形開先から角形鋼管柱までのリブ板の
上下辺を上下のダイヤフラムに溶接し、Ｈ形鋼梁の接合
にあたりＫ形開先を溶接で埋めるようにしたものでは、
リブ板外端の上下隅部にスカラップを形成した場合に生
じるスカラップに起因する応力集中を無くすことができ
て、ダイヤフラムとフランジとの接合部分の破壊をより
一層防止できる。Further, the upper and lower corners of the outer end of the rib plate are processed to form a K-shaped groove facing the extended portions of the upper and lower diaphragms, and the upper and lower sides of the rib plate extending from the substantially K-shaped groove to the rectangular steel pipe column. Is welded to the upper and lower diaphragms and the K-shaped groove is welded when joining the H-shaped steel beams.
It is possible to eliminate stress concentration due to scallops that occur when scallops are formed at the upper and lower corners of the outer edge of the rib plate, and it is possible to further prevent breakage of the joint portion between the diaphragm and the flange.
【図１】実施の形態１における、Ｈ形鋼梁が接合される
前の状態を示す角形鋼管梁の要部斜視図である。FIG. 1 is a perspective view of a main part of a rectangular steel tube beam showing a state before an H-shaped steel beam is joined in a first embodiment.
【図２】実施の形態１における角形鋼管柱及びＨ形鋼梁
の一部を示す側面図である。FIG. 2 is a side view showing a part of a rectangular steel tube column and an H-shaped steel beam in the first embodiment.
【図３】図２をＡ−Ａ線で切断して示した平面図であ
る。FIG. 3 is a plan view of FIG. 2 taken along the line AA.
【図４】図２の要部を拡大して示した側面図である。FIG. 4 is a side view showing an enlarged main part of FIG.
【図５】実施の形態１における上側の裏当金を示す斜視
図である。FIG. 5 is a perspective view showing an upper backing plate in the first embodiment.
【図６】実施の形態２における、Ｈ形鋼梁が接合される
前の状態を示す角形鋼管梁の要部斜視図である。FIG. 6 is a perspective view of a main portion of a rectangular steel pipe beam showing a state before an H-shaped steel beam is joined in a second embodiment.
【図７】実施の形態２における角形鋼管柱及びＨ形鋼梁
の一部を示す側面図である。FIG. 7 is a side view showing a part of a rectangular steel tube column and an H-shaped steel beam in the second embodiment.
【図８】図７の要部を拡大して示した側面図である。FIG. 8 is a side view showing an enlarged main part of FIG.
【図９】Ｋ形開先を示す図であって、図９(a) は図８
(a) におけるＢ−Ｂ線断面図、図９(b) は図８(b) にお
けるＣ−Ｃ線断面図である。FIG. 9 is a view showing a K-shaped groove, and FIG.
9B is a sectional view taken along line BB in FIG. 9A, and FIG. 9B is a sectional view taken along line CC in FIG. 8B.
【図１０】実施の形態２における上側の裏当金を示す斜
視図である。FIG. 10 is a perspective view showing an upper backing plate in the second embodiment.
【図１１】従来の接合構造における角形鋼管柱及びＨ形
鋼梁の一部を示す側面図である。FIG. 11 is a side view showing a part of a rectangular steel tube column and an H-shaped steel beam in a conventional joint structure.
１ 角形鋼管柱 ２，３ ダイヤフラム ２１，３１ 張出部 ２２，３２ 延長部 ４，４’ リブ板 ４４，４５ 開先部 ５ Ｈ形鋼梁 ５１，５２ フランジ ５３ ウェブ ７ ボルト ８１，８２ Ｋ形開先 1 Rectangular steel pipe column 2, 3 Diaphragm 21, 31 Overhanging part 22, 32 Extension part 4, 4'Rib plate 44, 45 Groove part 5 H type steel beam 51, 52 Flange 53 Web 7 Bolt 81, 82 K type opening Destination
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹島 徹 和歌山県有田郡湯浅町湯浅922−１ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Takeshima 922-1 Yuasa, Yuasa-cho, Arita-gun, Wakayama
Claims (2)
接合する接合構造であって、角形鋼管柱に、この角形鋼
管柱の周囲に水平に張り出した張出部を有する上下一対
のダイヤフラムと、上下のダイヤフラム間の角形鋼管柱
の側面に垂直に設けられたリブ板とを備え、このリブ板
とＨ形鋼梁のウェブとをボルト接合するとともに、突き
合わされた上下のダイヤフラムとＨ形鋼梁の上下のフラ
ンジとをそれぞれ溶接するものにおいて、 前記ダイヤフラムの張出部に外方へ延びる延長部を一体
に形成するとともに、この延長部の先端を開先加工し
て、突き合わされた前記Ｈ形鋼梁のフランジ端部と溶接
するようにしたことを特徴とする角形鋼管柱とＨ形鋼梁
との接合構造。1. A joining structure for joining a side surface of a rectangular steel tube column and an end of an H-shaped steel beam, wherein the rectangular steel tube column has an overhanging portion that horizontally projects around the rectangular steel tube column. A pair of diaphragms and a rib plate vertically provided on the side surface of the rectangular steel pipe column between the upper and lower diaphragms are provided. The rib plate and the web of the H-shaped steel beam are bolted together, and the upper and lower diaphragms abutted against each other. And the upper and lower flanges of the H-shaped steel beam are welded to each other, the extension portion of the diaphragm is integrally formed with the extension portion, and the tip of the extension portion is grooved to form a protrusion. A joint structure of a square steel pipe column and an H-shaped steel beam, characterized in that the flange end portion of the combined H-shaped steel beam is welded.
ダイヤフラムの延長部に臨むＫ形開先を形成するととも
に、ほぼＫ形開先から角形鋼管柱までのリブ板の上下辺
を上下のダイヤフラムに溶接し、Ｈ形鋼梁の接合にあた
りＫ形開先を溶接で埋めるようにした請求項１に記載の
角形鋼管柱とＨ形鋼梁との接合構造。2. The upper and lower corners of the outer end of the rib plate are processed to form a K-shaped groove facing the extended portions of the upper and lower diaphragms, and the upper and lower sides of the rib plate from the almost K-shaped groove to the rectangular steel pipe column. The welded structure of the rectangular steel tube column and the H-shaped steel beam according to claim 1, wherein the upper and lower diaphragms are welded to each other so that the K-shaped groove is filled with the welded portion when the H-shaped steel beam is joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2757996A JPH09217420A (en) | 1996-02-15 | 1996-02-15 | Connection structure of square steel pipe column and wide flange-shaped steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2757996A JPH09217420A (en) | 1996-02-15 | 1996-02-15 | Connection structure of square steel pipe column and wide flange-shaped steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09217420A true JPH09217420A (en) | 1997-08-19 |
Family
ID=12224894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2757996A Pending JPH09217420A (en) | 1996-02-15 | 1996-02-15 | Connection structure of square steel pipe column and wide flange-shaped steel beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09217420A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003105871A (en) * | 2001-09-28 | 2003-04-09 | Nkk Corp | Joint construction for column and beam |
| JP2004044100A (en) * | 2002-07-09 | 2004-02-12 | Kajima Corp | Beam structure and beam end widening method |
| KR100431378B1 (en) * | 2001-07-13 | 2004-05-14 | 대림산업 주식회사 | Connection structure of concrete filled steel tube |
| GB2402986A (en) * | 2003-06-18 | 2004-12-22 | Victor Buyck Hollandia Joint V | Joining beams to supporting columns |
| JP2016130412A (en) * | 2015-01-13 | 2016-07-21 | 株式会社竹中工務店 | Column-beam construction method |
| JP2020133217A (en) * | 2019-02-19 | 2020-08-31 | 日本製鉄株式会社 | Beam with h-shaped cross section assembled by welding |
-
1996
- 1996-02-15 JP JP2757996A patent/JPH09217420A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100431378B1 (en) * | 2001-07-13 | 2004-05-14 | 대림산업 주식회사 | Connection structure of concrete filled steel tube |
| JP2003105871A (en) * | 2001-09-28 | 2003-04-09 | Nkk Corp | Joint construction for column and beam |
| JP2004044100A (en) * | 2002-07-09 | 2004-02-12 | Kajima Corp | Beam structure and beam end widening method |
| GB2402986A (en) * | 2003-06-18 | 2004-12-22 | Victor Buyck Hollandia Joint V | Joining beams to supporting columns |
| GB2402986B (en) * | 2003-06-18 | 2006-06-28 | Victor Buyck Hollandia Joint V | Extreme event beam link connection |
| JP2016130412A (en) * | 2015-01-13 | 2016-07-21 | 株式会社竹中工務店 | Column-beam construction method |
| JP2020133217A (en) * | 2019-02-19 | 2020-08-31 | 日本製鉄株式会社 | Beam with h-shaped cross section assembled by welding |
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