JP7704337B2

JP7704337B2 - Steel joint structure

Info

Publication number: JP7704337B2
Application number: JP2021157777A
Authority: JP
Inventors: 克則大西
Original assignee: Building System Design Co., Ltd.; SHINTOMI IRON MANUFACTURING CO., LTD.
Current assignee: Building System Design Co., Ltd.; SHINTOMI IRON MANUFACTURING CO., LTD.
Priority date: 2020-10-29
Filing date: 2021-09-28
Publication date: 2025-07-08
Anticipated expiration: 2041-09-28
Also published as: JP2022073985A

Description

本発明は、鋼材の接合構造に関する。 The present invention relates to a joint structure for steel materials.

ビル等の建築物では、その骨組に鉄骨等の構造材が使用されている。このような構造材としては、曲げ剛性や曲げ強度等の観点から一般的にＨ形鋼が多く用いられており、これらを建築物の設計に応じて組むことで建築用構造体としている。 In buildings and other structures, structural materials such as steel frames are used for the framework. H-shaped steel is generally used as such structural material due to its bending rigidity and bending strength, and these are assembled according to the design of the building to create an architectural structure.

建築用構造体の施工においてＨ形鋼を接合する場合、従来より、図１９に示すような接合構造が用いられている。この接合構造では、隣り合うＨ形鋼４０、４１の端部にかかる曲げモーメントが主にフランジ１２断面に軸力となって伝達するため、Ｈ形鋼４０、４１のフランジ１２同士を軸力方向に軸力が伝達するように、フランジ１２の表裏面に各々添え板８を当てて挟み込み、ボルト６とナット７で締付けて２面の摩擦面で摩擦接合している。 When joining H-shaped steel in the construction of architectural structures, a joining structure as shown in Figure 19 has been used conventionally. In this joining structure, the bending moment acting on the ends of adjacent H-shaped steels 40, 41 is mainly transmitted as axial force to the cross section of the flanges 12, so that the flanges 12 of the H-shaped steels 40, 41 are sandwiched between splice plates 8 on the front and back sides of the flanges 12 and tightened with bolts 6 and nuts 7 to transmit the axial force in the axial direction, forming a frictional joint on two friction surfaces.

また、Ｈ形鋼４０、４１にかかる剪断力が主にウエッブ１３断面に鉛直方向のせん断力となって伝達するため、隣り合うＨ形鋼４０、４１のウエッブ１３に剪断力が伝達するように、ウエッブ１３の両面に各々添え板９を当てて挟み込み、ボルト６とナット７で締付けて２面の摩擦面で摩擦接合している。さらに、Ｈ形鋼４０、４１にかかる軸力はフランジ１２同士、ウエッブ１３同士の両方の接合で伝達している。 In addition, since the shear force acting on the H-shaped steels 40, 41 is mainly transmitted as a vertical shear force to the cross section of the web 13, to transmit the shear force to the webs 13 of adjacent H-shaped steels 40, 41, a splice plate 9 is placed on both sides of the web 13, which is then fastened with bolts 6 and nuts 7 to frictionally join the two surfaces. Furthermore, the axial force acting on the H-shaped steels 40, 41 is transmitted by both the joints between the flanges 12 and between the webs 13.

このような従来の接合構造で、隣り合うＨ形鋼４０、４１の高い接合強度を保持させるためには、多数の添え板８、９と、各々の添え板８、９を固定するための多くのボルト６及びナット７が必要となる。そのため、使用する部品点数が非常に多くなりコストがかかるとともに、接合するのに多大な手間がかかるという問題があった。 In order to maintain a high joint strength between adjacent H-shaped steel beams 40, 41 in such a conventional joint structure, a large number of support plates 8, 9 and many bolts 6 and nuts 7 for fixing each of the support plates 8, 9 are required. This results in a large number of parts being used, which is costly and requires a great deal of effort to join them.

このような問題に対して、Ｈ形鋼のフランジの内側面とウエッブの側面に当接して接合するＬ形材を用い、ボルトにより接合する方法が提案されている（特許文献１を参照）。この提案によれば、接合強度を維持したまま添え板の枚数を減らすことはできるが、使用するボルトの数は従来と同程度であるためコストがかかり、施工性も従来と同様に低いものであった。 To address these issues, a method has been proposed in which an L-shaped member is used to abut and join the inner surface of the flange of the H-shaped steel to the side of the web, and the members are joined by bolts (see Patent Document 1). According to this proposal, it is possible to reduce the number of splice plates while maintaining the joint strength, but the number of bolts used is about the same as in the past, which increases costs and makes the workability as poor as in the past.

一方、図１９に示す隣り合うＨ形鋼４０、４１のフランジ１２の表面と裏面を２枚の添え板で挟み込み、ボルト６とナット７により締付けて接合する従来の接合構造では、必然的にフランジ１２の表面側にボルト６の頭やナット７、添え板８が突出する。ここで、このような接合構造において接合部のフランジ１２表面側に、床など他部位の施工をする場合には、突出したボルト６の頭やナット７、添え板８が邪魔になり、これらを避けるための設計が必要となるため、フランジ１２の表面側はフラットであることが望まれていた。 On the other hand, in the conventional joint structure shown in Figure 19, in which the front and back surfaces of the flanges 12 of adjacent H-shaped steels 40, 41 are sandwiched between two splices and joined by tightening with bolts 6 and nuts 7, the heads of the bolts 6, nuts 7, and splices 8 inevitably protrude on the front side of the flanges 12. Here, in this type of joint structure, when constructing other parts such as a floor on the front side of the flanges 12 at the joint, the protruding heads of the bolts 6, nuts 7, and splices 8 get in the way, and a design to avoid this is required, so it was desirable for the front side of the flanges 12 to be flat.

このような問題に対して、上記特許文献１では、フランジ裏側の添板とウエッブ添板の半分を一体化し、Ｌ型にしているが、フランジの添板として兼用しているので、フランジとのボルトの接合は必須になっており、フランジ外面へのボルト突起は解決されていない。 To address this issue, in the above-mentioned Patent Document 1, the flange backside splice plate and half of the web splice plate are integrated into an L-shape, but because it also serves as a flange splice plate, it is necessary to connect the plate to the flange with bolts, and the problem of bolt protrusions on the outer surface of the flange is not resolved.

そこで、接合するＨ形鋼の端面にエンドプレートを溶接し、エンドプレート同士をボルトとナットで固定する提案がなされている（特許文献２を参照）。この提案によれば、部品点数を少なくし、作業性に優れ、フランジ表面にボルトの頭やナットの突出がない構造とすることができる。 Therefore, a proposal has been made to weld end plates to the ends of the H-section steel to be joined and then fasten the end plates together with bolts and nuts (see Patent Document 2). This proposal reduces the number of parts, improves workability, and creates a structure in which the bolt heads and nuts do not protrude from the flange surface.

また、フランジ表面からの突起を無くすための他の方法として、上フランジの先端に厚く、ボルト頭を沈める凹みを加工した部品を完全溶け込み溶接でフランジと一体に形成し、現地でフランジの力を伝達する相応の添板をフランジ内側に配置して貫通ボルトで接合する提案もなされている（特許文献３を参照）。 Another method proposed for eliminating protrusions from the flange surface is to form a thick part at the tip of the upper flange with a recess for sinking the bolt head, which is integrated with the flange by full penetration welding, and then place a suitable splice plate on the inside of the flange to transmit the force of the flange on-site and join it with a through bolt (see Patent Document 3).

特開平７－３４５５１号公報Japanese Patent Application Publication No. 7-34551 特開平５－１７９７０３号公報Japanese Patent Application Publication No. 5-179703 特開平６－１７３３４０号公報Japanese Patent Application Publication No. 6-173340

しかしながら、上記特許文献２の提案のＨ形鋼の端部に設けたエンドプレート同士をボルトで接合する方法では、ボルトの軸方向がエンドプレートの面外方向であるため、厚板にして変形を少なくしても微少な変形は避けられず、また高力ボルトの引張接合における微少変形も加わり、図１９に示す従来の添板方式のような完全剛接合は困難であった。 However, in the method proposed in Patent Document 2 above, where end plates at the ends of H-shaped steel are joined with bolts, the axial direction of the bolts is out of the plane of the end plates, so even if thick plates are used to reduce deformation, small deformations are unavoidable. In addition, small deformations occur in the tensile joints of high-strength bolts, making it difficult to achieve a completely rigid joint like the conventional splice method shown in Figure 19.

また、特許文献３の提案では、厚く凹加工した部品が高価であること、部品とＨ形鋼フランジの完全溶け込み溶接が高コストであること、また、添板との摩擦面が１面剪断摩擦接合であるため、従来の２面剪断摩擦接合にくらべてボルトの本数が２倍近く必要であること等の問題があった。 The proposal in Patent Document 3 also had problems such as the high cost of the thickly recessed parts, the high cost of full penetration welding between the parts and the H-beam flanges, and the fact that the friction surface with the splice plate is a one-sided shear friction joint, which required nearly twice as many bolts as a conventional two-sided shear friction joint.

本発明は以上のような事情に鑑みてなされたものであり、従来の鋼材の接合構造と同程度の接合強度を有するとともに、部品点数を少なくでき、接合施工が容易であり、さらに、フランジの表面側をフラットにすることが可能な鋼材の接合構造を提供することを課題としている。 The present invention was made in consideration of the above circumstances, and aims to provide a steel joint structure that has the same level of joint strength as conventional steel joint structures, while reducing the number of parts, facilitating joint construction, and enabling the surface side of the flange to be made flat.

本発明の鋼材の接合構造は、上記の技術的課題を解決するためになされたものであって、以下のことを特徴としている。
第１に、本発明の鋼材の接合構造は、隣り合う少なくともフランジとウエッブを有する第１の鋼材と第２の鋼材の端部同士を接合する鋼材の接合構造であって、
前記第１の鋼材のウエッブに接触せず、該ウエッブの表面に対して平行に配設され、前記第１の鋼材のフランジの端部裏面に溶接された伝達プレートと、
前記第２の鋼材のウエッブに接触せず、該ウエッブの表面に対して平行かつ、前記第２の鋼材の端部から突出するように配設され、前記第２の鋼材のフランジの端部裏面に溶接された連結プレートとを備え、
前記第１の鋼材の前記伝達プレート及び前記第２の鋼材の前記連結プレートが各々の前記ウエッブを挟んで両側に設けられ、
前記第１の鋼材の前記伝達プレートと前記第２の鋼材の前記連結プレートが、密着してボルト接合されていることを特徴とする。
第２に、本発明の鋼材の接合構造は、隣り合う少なくともフランジとウエッブを有する第１の鋼材と第２の鋼材の端部同士を接合する鋼材の接合構造であって、
前記第１の鋼材のウエッブの片側において、前記ウエッブに接触せず、該ウエッブの表面に対して平行に配設され、前記第１の鋼材のフランジの端部裏面に溶接された伝達プレートと、ウエッブの他の片側において、前記ウエッブに接触せず、該ウエッブの表面に対して平行かつ、前記第１の鋼材の端部から突出するように配設され、前記第１の鋼材のフランジの端部裏面に溶接された連結プレートとを備えるとともに、
前記第２の鋼材のウエッブの片側において、前記ウエッブに接触せず、該ウエッブの表面に対して平行かつ、前記第２の鋼材の端部から突出するように配設され、前記第２の鋼材のフランジの端部裏面に溶接された連結プレートと、前記ウエッブの他の片側において、前記ウエッブに接触せず、該ウエッブの表面に対して平行に配設され、前記第２の鋼材のフランジの端部裏面に溶接された伝達プレートとを備え、
前記第１の鋼材の前記伝達プレートと前記第２の鋼材の前記連結プレート及び、前記第１の鋼材の連結プレートと前記第２の鋼材の前記伝達プレートの各々が、密着してボルト接合されていることを特徴とする。
第３に、上記第１又は第２の発明の鋼材の接合構造において、前記伝達プレートが、前記連結プレートの厚み分の間隔を空けて２枚配設されており、
前記連結プレートが、前記２枚の伝達プレートの間に挟持され、ボルト接合されていることが好ましい。
第４に、上記第１から第３の発明の鋼材の接合構造において、前記伝達プレート又は前記連結プレートの少なくともいずれかにスチフナが接続されていることが好ましい。
第５に、上記第１から第４の発明の鋼材の接合構造において、前記第１の鋼材及び前記第２の鋼材が、Ｈ形鋼、Ｔ形鋼、溝形鋼、Ｉ形鋼のいずれか、又はこれらの組み合わせであることが好ましい。
第６に、本発明の鋼材の接合構造は、少なくともフランジとウエッブを有する鋼材と、構造物を接合する鋼材の接合構造であって、
前記鋼材のウエッブに接触せず、かつ、前記ウエッブの表面に対して平行に配設されるとともに、フランジの端部裏面に溶接された伝達プレートと、
前記構造物から突出するように、前記鋼材に設けられた伝達プレートと接続可能に設けられた、連結プレートとを備え、
前記鋼材の前記伝達プレートと、前記構造物の前記連結プレートが、密着してボルト接合されていることを特徴とする。
第７に、本発明の鋼材の接合構造は、少なくともフランジとウエッブを有する鋼材と、構造物を接合する鋼材の接合構造であって、
前記鋼材のウエッブの片側において、前記鋼材のウエッブに接触せず、かつ、前記ウエッブの表面に対して平行に配設されるとともに、フランジの端部裏面に溶接された伝達プレートと、ウエッブの他の片側において、前記ウエッブに接触せず、該ウエッブの表面に対して平行かつ、前記鋼材の端部から突出するように配設され、前記鋼材のフランジの端部裏面に溶接された連結プレートとを備えるとともに、
前記構造物から突出するように、前記鋼材に設けられた伝達プレートと接続可能に設けられた連結プレートと、を備えるとともに、前記鋼材に設けられた連結プレートと接続可能に設けられた伝達プレートとを備え、
前記鋼材の前記伝達プレートと前記構造物の前記連結プレート及び、前記鋼材の前記連結プレートと前記構造物の前記伝達プレートの各々が、密着してボルト接合されていることを特徴とする。
第８に、上記第６又は第７の発明の鋼材の接合構造において、前記鋼材に設けられた前記伝達プレートにスチフナが接続されていることが好ましい。
第９に、上記第６から第８の発明の鋼材の接合構造において、前記鋼材及び／又は前記構造物に設けられた前記伝達プレートが、前記構造物及び／又は前記鋼材に設けられた前記連結プレートの厚み分の間隔を空けて２枚配設されており、
前記連結プレートが、前記２枚の伝達プレートの間に挟持され、ボルト接合されていることが好ましい。
第１０に、上記第６から第９の発明の鋼材の接合構造において、前記鋼材が、Ｈ形鋼、Ｔ形鋼、溝形鋼、Ｉ形鋼のいずれかであり、前記構造物が、Ｈ形鋼、溝形鋼、Ｚ形鋼、Ｉ形鋼、角形鋼管、基礎定着板のいずれかであることが好ましい。 The joining structure of steel materials of the present invention has been made to solve the above technical problems, and has the following features.
First, the joining structure of steel materials of the present invention is a joining structure of steel materials in which end portions of a first steel material and a second steel material having at least a flange and a web adjacent to each other are joined together,
a transmission plate that is not in contact with the web of the first steel material, is disposed parallel to a surface of the web, and is welded to a rear surface of an end portion of the flange of the first steel material;
a connecting plate that is not in contact with the web of the second steel material, is arranged parallel to the surface of the web, and protrudes from the end of the second steel material, and is welded to the back surface of the end of the flange of the second steel material;
The transmission plate of the first steel material and the connection plate of the second steel material are provided on both sides of each of the webs,
The transmission plate of the first steel material and the connecting plate of the second steel material are bolted together in close contact with each other.
Secondly, the joining structure of steel materials of the present invention is a joining structure of steel materials in which end portions of a first steel material and a second steel material having at least a flange and a web adjacent to each other are joined together,
a transmission plate disposed on one side of the web of the first steel material, not in contact with the web, parallel to the surface of the web, and welded to the back surface of the end of the flange of the first steel material; and a connection plate disposed on the other side of the web, not in contact with the web, parallel to the surface of the web, and so as to protrude from the end of the first steel material, and welded to the back surface of the end of the flange of the first steel material;
a connection plate disposed on one side of the web of the second steel material so as not to come into contact with the web, parallel to a surface of the web, and so as to protrude from an end of the second steel material, and welded to a rear surface of an end of a flange of the second steel material; and a transmission plate disposed on the other side of the web so as not to come into contact with the web, parallel to the surface of the web, and welded to a rear surface of an end of a flange of the second steel material,
The transmission plate of the first steel material and the connecting plate of the second steel material, and the connecting plate of the first steel material and the transmission plate of the second steel material are each tightly joined by bolts.
Thirdly, in the joining structure of the steel material according to the first or second invention, the transmission plate is arranged in two pieces with a gap of the thickness of the connection plate,
It is preferable that the connecting plate is sandwiched between the two transmission plates and bolted together.
Fourthly, in the steel material joining structures of the first to third inventions, it is preferable that a stiffener is connected to at least one of the transmission plate or the connecting plate.
Fifth, in the steel material joint structures of the first to fourth inventions, it is preferable that the first steel material and the second steel material are any one of H-shaped steel, T-shaped steel, channel steel, and I-shaped steel, or a combination of these.
Sixthly, the joining structure of steel materials of the present invention is a joining structure of steel materials that joins a steel material having at least a flange and a web to a structure,
a transmission plate that is not in contact with the steel web and is disposed parallel to the surface of the web and is welded to the rear surface of the end of the flange;
a connecting plate provided so as to be connectable to a transmission plate provided on the steel material so as to protrude from the structure;
The transmission plate of the steel material and the connecting plate of the structure are closely attached and bolted together.
Seventhly, the joining structure of steel materials of the present invention is a joining structure of steel materials that joins a steel material having at least a flange and a web to a structure,
a transmission plate disposed on one side of the web of the steel material, not in contact with the web of the steel material, parallel to the surface of the web, and welded to the back surface of the end of the flange; and a connection plate disposed on the other side of the web, not in contact with the web, parallel to the surface of the web, and so as to protrude from the end of the steel material, and welded to the back surface of the end of the flange of the steel material;
A connection plate provided so as to be connectable to a transmission plate provided on the steel material so as to protrude from the structure, and a transmission plate provided so as to be connectable to the connection plate provided on the steel material,
The transmission plate of the steel material and the connecting plate of the structure, and the connecting plate of the steel material and the transmission plate of the structure are each tightly joined by bolts.
Eighth, in the joint structure of steel materials according to the sixth or seventh invention, it is preferable that a stiffener is connected to the transmission plate provided on the steel material.
Ninth, in the joint structure of the steel material according to the sixth to eighth inventions, the transmission plate provided on the steel material and/or the structure is arranged in two pieces with a gap of the thickness of the connection plate provided on the structure and/or the steel material,
It is preferable that the connecting plate is sandwiched between the two transmission plates and bolted together.
Tenth, in the steel material joint structures of the sixth to ninth inventions above, it is preferable that the steel material is any one of H-shaped steel, T-shaped steel, channel steel, and I-shaped steel, and the structure is any one of H-shaped steel, channel steel, Z-shaped steel, I-shaped steel, square steel pipe, and foundation anchorage plate.

本発明の鋼材の接合構造によれば、従来の鋼材の接合構造と同程度の接合強度を有するとともに、部品点数を少なくでき、接合施工が容易であり、さらに、フランジの表面側をフラットにすることが可能となる。 The steel joint structure of the present invention has the same joint strength as conventional steel joint structures, while reducing the number of parts, making joint construction easier, and making it possible to make the surface side of the flange flat.

本発明の鋼材の接合構造の第１実施形態の接合状態を示す斜視図である。1 is a perspective view showing a joining state of a first embodiment of a joining structure for steel materials according to the present invention; 図１に示す第１実施形態のＡ－Ａ断面図である。2 is a cross-sectional view taken along line AA of the first embodiment shown in FIG. 1. 図１に示す第１実施形態のＢ－Ｂ断面図である。2 is a cross-sectional view taken along line BB of the first embodiment shown in FIG. 1. 本発明の鋼材の接合構造の第２実施形態を示す垂直断面図である。FIG. 4 is a vertical cross-sectional view showing a second embodiment of the joining structure of steel materials according to the present invention. 本発明の鋼材の接合構造の第３実施形態を示す垂直断面図である。FIG. 4 is a vertical cross-sectional view showing a third embodiment of the joining structure of steel materials according to the present invention. 本発明の鋼材の接合構造の第３実施形態を示す水平断面図である。FIG. 11 is a horizontal cross-sectional view showing a third embodiment of the joining structure of steel materials according to the present invention. 本発明の鋼材の接合構造の第４実施形態を示す垂直断面図である。FIG. 11 is a vertical cross-sectional view showing a fourth embodiment of the joining structure of steel materials according to the present invention. 第４実施形態の他の実施形態を示す垂直断面図である。FIG. 13 is a vertical cross-sectional view showing another embodiment of the fourth embodiment. 第４実施形態の他の実施形態を示す垂直断面図である。FIG. 13 is a vertical cross-sectional view showing another embodiment of the fourth embodiment. 本発明の鋼材の接合構造の第５実施形態を示す水平断面図である。FIG. 13 is a horizontal cross-sectional view showing a fifth embodiment of the steel material joining structure of the present invention. 第５実施形態の他の実施形態を示す水平断面図である。FIG. 13 is a horizontal cross-sectional view showing another embodiment of the fifth embodiment. 本発明の鋼材の接合構造の第６実施形態を示す水平断面図である。FIG. 13 is a horizontal cross-sectional view showing a sixth embodiment of the joining structure of steel materials according to the present invention. 第７実施形態を示す垂直断面図である。FIG. 13 is a vertical cross-sectional view showing the seventh embodiment. 図１３に示す第７実施形態の水平断面図である。FIG. 14 is a horizontal cross-sectional view of the seventh embodiment shown in FIG. 13 . 本発明の鋼材の接合構造の第８実施形態の接合状態を示す斜視図である。FIG. 13 is a perspective view showing a joining state of an eighth embodiment of the steel material joining structure of the present invention. 図１５に示す第８実施形態のＢ－Ｂ断面図である。16 is a cross-sectional view taken along the line BB of the eighth embodiment shown in FIG. 15. 本発明の鋼材の接合構造の第９実施形態を示す正面断面図である。FIG. 13 is a front cross-sectional view showing a ninth embodiment of the steel material joining structure of the present invention. 第１０実施形態を示す垂直断面図である。FIG. 23 is a vertical cross-sectional view showing the tenth embodiment. 従来の鋼材の接合構造を示す概略斜視図である。FIG. 1 is a schematic perspective view showing a conventional joint structure of steel materials.

本発明の鋼材の接合構造の実施形態について図面に基づいて以下に詳述する。本発明の鋼材の接合構造は、隣り合う少なくともフランジとウエッブを有する第１の鋼材及び第２の鋼材の端部同士を接合する鋼材の接合構造である。そして、第１の鋼材のウエッブに接触せず、該ウエッブの表面に対して平行に配設され、第１の鋼材のフランジの裏面に溶接された伝達プレートと、第２の鋼材のウエッブに接触せず、該ウエッブの表面に対して平行かつ、第２の鋼材の端部から突出するように配設され、第２の鋼材のフランジの裏面に溶接された連結プレートとを備えている。そして、第１の鋼材の伝達プレート及び第２の鋼材の連結プレートは、各々のウエッブを挟んで両側に設けられており、さらに、第１の鋼材の伝達プレートと、第２の鋼材の連結プレートが、密着してボルト接合されている。 The embodiment of the steel material joining structure of the present invention will be described in detail below with reference to the drawings. The steel material joining structure of the present invention is a steel material joining structure that joins the ends of a first steel material and a second steel material having at least adjacent flanges and webs. The structure includes a transmission plate that does not contact the web of the first steel material, is arranged parallel to the surface of the web, and is welded to the back surface of the flange of the first steel material, and a connection plate that does not contact the web of the second steel material, is arranged parallel to the surface of the web, is arranged so as to protrude from the end of the second steel material, and is welded to the back surface of the flange of the second steel material. The transmission plate of the first steel material and the connection plate of the second steel material are provided on both sides of each web, and the transmission plate of the first steel material and the connection plate of the second steel material are bolted together in close contact.

＜第１実施形態＞
図１は、本発明の鋼材の接合構造の第１実施形態を示す斜視図であり、図２は図１の実施形態の接合後のＡ－Ａ断面図、図３はＢ－Ｂ断面図である。本第１実施形態の鋼材の接合構造では、第１の鋼材及び第２の鋼材として、隣り合う２本のＨ形鋼の端部同士を接合している。 First Embodiment
Fig. 1 is a perspective view showing a first embodiment of the steel material joining structure of the present invention, Fig. 2 is a cross-sectional view taken along line A-A after joining in the embodiment shown in Fig. 1, and Fig. 3 is a cross-sectional view taken along line B-B. In the steel material joining structure of the first embodiment, ends of two adjacent H-shaped steel members are joined together as the first steel member and the second steel member.

本第１実施形態の鋼材の接合構造における第１の鋼材としてのＨ形鋼１０は、上下のフランジ１２と、各フランジ１２の断面中央部を垂直に繋ぐ１本のウエッブ１３から構成されている。また、接合する第２の鋼材としてのＨ形鋼１１は、Ｈ形鋼１０とほぼ同じ断面のＨ形状を有している。このようなＨ形鋼１０、１１同士の接合は、例えば、梁や柱、また、筋交い等の直線的な接合に用いることができる。 The H-shaped steel 10 as the first steel material in the steel material joining structure of this first embodiment is composed of upper and lower flanges 12 and a single web 13 that vertically connects the center of the cross section of each flange 12. The H-shaped steel 11 as the second steel material to be joined has a cross section with approximately the same H shape as the H-shaped steel 10. Joining such H-shaped steels 10, 11 together can be used for linear joining of beams and columns, diagonal braces, etc., for example.

本第１実施形態の鋼材の接合構造において、Ｈ形鋼１０に設けられる伝達プレート２は、ウエッブ１３と接触せず、所定の間隔をおいてフランジ１２の端部裏面に長手方向に沿って、Ｈ形鋼１０の端部から突出しないように、かつ、上下のフランジ１２を繋ぐように配設されて溶接されている。また、本第１実施形態における伝達プレート２は、連結プレート３の厚み分の間隔を空けて２枚配設されており、さらに、Ｈ形鋼のウエッブ１３を挟んで両側に設けられている。なお、伝達プレート２とフランジ１２の溶接は、伝達プレート２の縁部とフランジ１２の相互に力が伝わるように溶接されている。 In the steel joining structure of this first embodiment, the transmission plate 2 provided on the H-shaped steel 10 is welded to the back surface of the end of the flange 12 at a predetermined interval along the longitudinal direction, without contacting the web 13, so as not to protrude from the end of the H-shaped steel 10, and so as to connect the upper and lower flanges 12. In this first embodiment, two transmission plates 2 are provided at a distance equal to the thickness of the connecting plate 3, and are provided on both sides of the web 13 of the H-shaped steel. The transmission plate 2 and the flange 12 are welded so that force is transmitted between the edge of the transmission plate 2 and the flange 12.

また、本第１実施形態では、伝達プレート２の表面に連結プレート３を密着して設ける構成であるため、伝達プレート２とフランジ１２の溶接部２１が伝達プレート２の縁に沿って盛り上がる所謂ビードが突出しないように溶接されていることが望ましい。このような溶接状態とするために、例えば、予め伝達プレート２の溶接部２１の縁に面取部を形成させておくことが好ましい。溶接は、通常、面取部内を埋めるように部分溶け込み溶接するが、余盛り部分はカットすることで伝達プレート２と連結プレート３を密着して設けることが可能となる。また、密着させる連結プレート３の縁に面取部を形成してビードの盛り上がりとの接触を逃がすこともできる。フランジ１２と伝達プレート２の溶接形態は特に限定されるものではないが、上記のことを考慮した場合、部分溶け込み溶接で余盛りカットを施すのが望ましい。 In addition, in the first embodiment, since the connecting plate 3 is attached to the surface of the transmission plate 2 in close contact, it is desirable that the welded portion 21 of the transmission plate 2 and the flange 12 is welded so that the so-called bead that rises along the edge of the transmission plate 2 does not protrude. In order to achieve such a welded state, for example, it is preferable to form a chamfered portion on the edge of the welded portion 21 of the transmission plate 2 in advance. The welding is usually performed by partial penetration welding so as to fill the chamfered portion, but the excess portion can be cut to allow the transmission plate 2 and the connecting plate 3 to be attached in close contact. In addition, a chamfered portion can be formed on the edge of the connecting plate 3 to be attached in close contact to avoid contact with the bead bulge. The welding form of the flange 12 and the transmission plate 2 is not particularly limited, but considering the above, it is desirable to perform partial penetration welding with excess cut.

また、Ｈ形鋼１１に設けられる連結プレート３は、ウエッブ１３と接触せず、所定の間隔をおいて、伝達プレート２と接合可能な位置に、フランジ１２の端部裏面に長手方向に沿ってＨ形鋼１１の端部から突出するように溶接されている。また、連結プレート３の厚みは、Ｈ形鋼１０に設けられた２枚の伝達プレート２の間隔の厚みに設定されており、接合に際しては、Ｈ形鋼１０の伝達プレート２が設けられている端部と、Ｈ形鋼１１の連結プレート３が設けられている端部とを突き合わせて、連結プレート３が伝達プレート２に挟持されてボルト６により接合される。即ち、伝達プレート２と連結プレート３との接合はボルト６による剪断接合となっている。なお、連結プレート３と連結プレート２の隙間は、ボルトで密着できる程度の隙間を空けておくと挿入し易く、具体的なクリアランスとしては１ｍｍ程度が考慮される。 The connecting plate 3 provided on the H-shaped steel 11 is welded to the rear surface of the end of the flange 12 at a position where it can be joined to the transmission plate 2 at a predetermined interval without contacting the web 13, so that it protrudes from the end of the H-shaped steel 11 along the longitudinal direction. The thickness of the connecting plate 3 is set to the thickness of the gap between the two transmission plates 2 provided on the H-shaped steel 10, and when joining, the end of the H-shaped steel 10 where the transmission plate 2 is provided and the end of the H-shaped steel 11 where the connection plate 3 is provided are butted against each other, and the connecting plate 3 is sandwiched between the transmission plate 2 and joined by the bolt 6. In other words, the connection between the transmission plate 2 and the connecting plate 3 is a shear connection by the bolt 6. The gap between the connecting plate 3 and the connecting plate 2 is easy to insert if there is a gap large enough to allow the bolt to tightly contact the plate, and a specific clearance of about 1 mm is considered.

伝達プレート２と連結プレート３のボルト６による接合は、伝達プレート２と連結プレート３が重なり合う範囲の所定の位置に、連結プレート３及び伝達プレート２を同軸に貫通する貫通孔５を設け、該貫通孔５にボルト６を挿通してナット７で締め付けて接合する。このとき、連結プレート３の強度とボルト接合は、接合部にかかる曲げモーメントと軸力及び剪断力の合力に対する強度が必要になる。 The transmission plate 2 and the connecting plate 3 are joined with bolts 6 by providing through holes 5 that pass coaxially through the connecting plate 3 and the transmission plate 2 at a predetermined position within the range where the transmission plate 2 and the connecting plate 3 overlap, and then inserting the bolts 6 into the through holes 5 and tightening them with nuts 7. At this time, the strength of the connecting plate 3 and the bolt joint must be strong enough to withstand the combined force of the bending moment, axial force, and shear force applied to the joint.

なお、ボルト６とナット７による締め付けにおいて、２枚の伝達プレート２と、挟持される連結プレート３の位置関係から、内側（ウエッブ１３側）の伝達プレート２の裏側のナット７の固定が困難な場合には、予め貫通孔５の位置にナット７を溶接してお０くことによりボルト６の締め付けを容易かつ確実にすることができる。また、内側の伝達プレート２の貫通孔５に、ボルト６の仕様に対応する雌ねじを形成しておくことにより締結させることもできる。 When tightening the bolts 6 and nuts 7, if it is difficult to fix the nuts 7 on the back side of the inner transmission plate 2 (web 13 side) due to the relative positions of the two transmission plates 2 and the connecting plate 3 that is sandwiched between them, the bolts 6 can be tightened easily and reliably by welding the nuts 7 to the through holes 5 in advance. Also, it is possible to fasten the bolts 6 by forming a female thread corresponding to the specifications of the bolts 6 in the through holes 5 of the inner transmission plate 2.

ボルト６は、必要な強度に応じてボルト６の太さと強度及び本数を決めることができる。また、ボルト６のピッチや本数を変えることで伝達プレート２の長さと厚さを設計することができる。なお、伝達プレート２が長い方がフランジ１２の接合部から伝達される強度が大きくなるとともにフランジ１２との溶接長が多くとれるので溶接サイズが小さく伝達プレート２を薄くすることができる。また、ボルト６の長さを短くすることができるため経済的である。 The thickness, strength and number of bolts 6 can be determined according to the required strength. In addition, the length and thickness of the transmission plate 2 can be designed by changing the pitch and number of bolts 6. Note that a longer transmission plate 2 increases the strength transmitted from the joint of the flange 12 and allows for a longer weld length with the flange 12, which reduces the weld size and allows the transmission plate 2 to be made thinner. In addition, it is economical because the length of the bolts 6 can be shortened.

連結プレート３は、必要な強度に応じて材料強度と断面積を決定することができる。このとき、連結プレート３の厚さを薄く設定した方がボルト６の長さを短くすることができるため経済的である。 The material strength and cross-sectional area of the connecting plate 3 can be determined according to the required strength. In this case, it is more economical to set the thickness of the connecting plate 3 thin, since this allows the length of the bolt 6 to be shortened.

なお、一般的に、ボルト剪断接合においては、剪断面が多いほど接合強度は大きくなる。第１実施形態の鋼材の接合構造では、１枚の連結プレート３を２枚の伝達プレート２により両側から挟持してボルト６で接合するので、Ｈ形鋼１０とＨ形鋼１１のボルト接合は２面剪断接合となる。 In general, in a bolted shear joint, the more shear surfaces there are, the greater the joint strength. In the steel joint structure of the first embodiment, one connecting plate 3 is clamped on both sides by two transmission plates 2 and joined with bolts 6, so the bolt joint between the H-shaped steel 10 and the H-shaped steel 11 is a two-plane shear joint.

本第１実施形態では、Ｈ形鋼１０の上下のフランジ１２の裏面４カ所に溶接した伝達プレート２に伝わった力は、溶接２１からフランジ１２に伝わるが、伝達プレート２と連結プレート３をボルト６で共締めしているので、伝達プレート２に伝わった力は連結プレート３に伝達されて、Ｈ形鋼１１の連結プレート３の接合部からフランジ１２に力が伝わる。 In this first embodiment, the force transmitted to the transmission plate 2 welded to the back surface of the upper and lower flanges 12 of the H-shaped steel 10 at four points is transmitted to the flanges 12 through the welds 21. However, since the transmission plate 2 and the connecting plate 3 are fastened together with the bolts 6, the force transmitted to the transmission plate 2 is transmitted to the connecting plate 3, and the force is transmitted from the joint of the connecting plate 3 of the H-shaped steel 11 to the flanges 12.

上記のように、第１実施形態の鋼材の接合構造では、フランジ１２の裏面に伝達プレート２を溶接しているため、ボルト６による突起や添え板等による段差のないフラットな面とすることができ、フランジ１２の表面側への施工性を向上させることができる。 As described above, in the steel joint structure of the first embodiment, the transmission plate 2 is welded to the back surface of the flange 12, which allows for a flat surface without protrusions caused by the bolts 6 or steps caused by splices, etc., improving workability on the front surface side of the flange 12.

なお、伝達プレート２と連結プレート３の接合位置は、できるだけフランジ１２の縁側に設けるのが好ましい。これにより、接合したＨ形鋼１０、１１の弱軸方向の強度に優れた接合構造とすることができる。 The joint between the transmission plate 2 and the connecting plate 3 is preferably located as close to the edge of the flange 12 as possible. This allows the joint structure to have excellent strength in the weak axis direction of the joined H-shaped steels 10 and 11.

＜第２実施形態＞
本発明においては、図４に示すような第２実施形態の鋼材の接合構造とすることもできる。第２実施形態では、Ｈ形鋼１０に設けられる伝達プレート２は、ウエッブ１３と接触せず、所定の間隔をおいてフランジ１２の端部裏面に長手方向に沿って、Ｈ形鋼１０の端部から突出しないように、かつ、上下の各々のフランジ１２に対して各々別に、連結プレート３の厚み分の間隔を空けて２枚ずつ配設されている。さらに、伝達プレート２は、Ｈ形鋼１０のウエッブ１３を挟んで両側に設けられている。 Second Embodiment
In the present invention, a joining structure of steel materials according to a second embodiment as shown in Fig. 4 may also be used. In the second embodiment, the transmission plates 2 provided on the H-shaped steel 10 are not in contact with the web 13, are spaced apart from each other at a predetermined interval along the longitudinal direction on the rear surface of the end of the flange 12, and are provided in pairs for each of the upper and lower flanges 12, with a gap of the thickness of the connecting plate 3 between them, so as not to protrude from the end of the H-shaped steel 10. Furthermore, the transmission plates 2 are provided on both sides of the web 13 of the H-shaped steel 10.

また、Ｈ形鋼１１に設ける連結プレート３は、ウエッブ１３と接触せず、所定の間隔をおいて、伝達プレート２と接合可能な位置で、フランジ１２の端部裏面に長手方向に沿って、Ｈ形鋼の端部から突出するように、かつ、上下の各々のフランジ１２に対して各々分割して溶接されている。 The connecting plate 3 attached to the H-shaped steel 11 is welded separately to each of the upper and lower flanges 12 so as to protrude from the end of the H-shaped steel along the longitudinal direction of the back surface of the end of the flange 12 at a position where it can be joined to the transmission plate 2 at a specified distance without coming into contact with the web 13.

第２実施形態の構成においても、上記第１実施形態の構成と同様に、連結プレート２枚をウエッブ１３の両側からボルト６及びナット７でボルト接合しているので、ウエッブ１３の両側で、各々２面の剪断面となり、第１実施形態の接合構造と同様の効果を奏するこことが可能となる。 In the configuration of the second embodiment, as in the configuration of the first embodiment, two connecting plates are bolted together from both sides of the web 13 with bolts 6 and nuts 7, so that two shear surfaces are formed on each side of the web 13, and it is possible to achieve the same effect as the joining structure of the first embodiment.

＜第３実施形態＞
本発明の鋼材の接合構造においては、上記第１実施形態、第２実施形態の他、図５、図６に示すように、１枚の連結プレートを２枚の伝達プレート２で挟持せず、伝達プレート２と連結プレート３を上下のフランジ１２を繋ぐように接合し、１枚の伝達プレート２と１枚の連結プレート３の面を合わせてボルト接合する構成とすることもできる。 Third Embodiment
In the steel joining structure of the present invention, in addition to the above-mentioned first and second embodiments, as shown in Figures 5 and 6, instead of clamping one connecting plate between two transmission plates 2, the transmission plate 2 and the connecting plate 3 can be joined so as to connect the upper and lower flanges 12, and the faces of one transmission plate 2 and one connecting plate 3 can be aligned and bolted together.

＜第４実施形態＞
また、図７に示すように、第３実施形態において、上記第２実施形態のように、伝達プレート２と連結プレート３を上下のフランジ１２各々に分割して接合する構成とすることや、図８に示すように、伝達プレート２のみを上下のフランジ１２を繋ぐように接合し、連結プレート３を分割して接合する構成、また、図９に示すように、連結プレート３のみを上下のフランジ１２を繋ぐように接合し、伝達プレート２を分割して接合する構成とすることもできる。 Fourth Embodiment
In addition, as shown in FIG. 7, in the third embodiment, as in the second embodiment, the transmission plate 2 and the connecting plate 3 can be configured to be divided and joined to the upper and lower flanges 12, respectively, or as shown in FIG. 8, the transmission plate 2 alone can be joined to connect the upper and lower flanges 12, and the connecting plate 3 can be divided and joined, or as shown in FIG. 9, the connecting plate 3 alone can be joined to connect the upper and lower flanges 12, and the transmission plate 2 can be divided and joined.

＜第５実施形態＞
また、上記第１実施形態及び第２実施形態では、伝達プレート２をＨ形鋼１０の端部から突出しないように溶接し、連結プレート３をＨ形鋼１１の端部から突出するように溶接しているが、図１０に示すように、伝達プレート２をＨ形鋼１０の端部から突出するように溶接し、連結プレート３をＨ形鋼１１の端部から突出しないように溶接してもよい。さらに、図１１に示すように、伝達プレート２と連結プレート３を共にＨ形鋼１０、１１の端部から突出するように溶接して接合する構成としてもよい。この場合、隣り合うＨ形鋼１０及びＨ形鋼１１の各々の端部でボルト接合することができる。 Fifth Embodiment
In the above first and second embodiments, the transmission plate 2 is welded so as not to protrude from the end of the H-shaped steel 10, and the connecting plate 3 is welded so as to protrude from the end of the H-shaped steel 11, but as shown in Fig. 10, the transmission plate 2 may be welded so as to protrude from the end of the H-shaped steel 10, and the connecting plate 3 may be welded so as not to protrude from the end of the H-shaped steel 11. Furthermore, as shown in Fig. 11, the transmission plate 2 and the connecting plate 3 may be welded and joined so as to protrude from the ends of the H-shaped steels 10 and 11. In this case, the ends of the adjacent H-shaped steels 10 and 11 can be bolted together.

＜第６実施形態＞
また、本発明の鋼材の接合構造においては、図１２に示すように、Ｈ形鋼１０、１１のウエッブ１３に対して垂直方向で、伝達プレート２と連結プレート３にスチフナ１９を溶接することができる。なお、図１２では、上記第１実施形態の接合構成に対してスチフナ１９を接続しているが、上記第２～５実施形態の接合構造に対してもスチフナ１９を接続することができる。 Sixth Embodiment
In the steel joint structure of the present invention, as shown in Fig. 12, a stiffener 19 can be welded to the transmission plate 2 and the connecting plate 3 in a direction perpendicular to the webs 13 of the H-shaped steels 10 and 11. In Fig. 12, the stiffener 19 is connected to the joint configuration of the above-mentioned first embodiment, but the stiffener 19 can also be connected to the joint structures of the above-mentioned second to fifth embodiments.

これにより、Ｈ形鋼１０、１１のウエッブ１３にかかる剪断力が、各々に取り付けたスチフナ１９から伝達プレート２と連結プレート３を各々介してＨ形鋼１０、１１に伝達される。なお、本発明の鋼材の接合構造において、鋼材の接合条件等で、鋼材の接合箇所に剪断力がかからないような場合には、上記第１～第５実施形態のようにスチフナ１９を省略することができる。 As a result, the shear force acting on the webs 13 of the H-shaped steels 10 and 11 is transmitted from the stiffeners 19 attached to each of them to the H-shaped steels 10 and 11 via the transmission plate 2 and the connecting plate 3. In the steel material joining structure of the present invention, if the joining conditions of the steel materials are such that no shear force is applied to the joints of the steel materials, the stiffeners 19 can be omitted as in the first to fifth embodiments.

また、上記第１実施形態から第６実施形態における隣り合うＨ形鋼１０は、Ｈ形鋼１１と異なった断面形状でもよく、各々が長尺のＨ形鋼や、片方が梁状又は柱状の鋼材から鉛直や水平又は所定の角度をもって接合されている短尺のＨ形鋼であってもよい。さらに、本発明の接合構造における第１の鋼材１０及び第２の鋼材１１は、フランジ１２とウエッブ１３を有する鋼材であれば適用することができ、Ｔ形鋼、溝形鋼、Ｉ形鋼のいずれか、又はこれらの組み合わせの接合構成とすることができる。 In addition, the adjacent H-shaped steels 10 in the first to sixth embodiments may have a cross-sectional shape different from that of the H-shaped steel 11, and each may be a long H-shaped steel or a short H-shaped steel with one end joined vertically, horizontally, or at a specified angle to a beam-shaped or column-shaped steel material. Furthermore, the first steel material 10 and the second steel material 11 in the joint structure of the present invention can be any steel material having a flange 12 and a web 13, and the joint configuration can be any of T-shaped steel, channel steel, and I-shaped steel, or a combination of these.

さらに、本発明の鋼材の接合構造では、隣り合う少なくともフランジ１２とウエッブ１３を有する、第１の鋼材１０と第２の鋼材１１の端部同士を接合する鋼材の接合構造において、第１の鋼材１０のウエッブ１３の片側に、ウエッブ１３に接触せず、該ウエッブ１３の表面に対して平行に配設し、フランジ１２の端部裏面に溶接した伝達プレート２を設けるとともに、ウエッブ１３の他の片側において、ウエッブ１３に接触せず、該ウエッブ１３の表面に対して平行かつ、第１の鋼材の端部から突出するように配設し、フランジ１２の端部裏面に溶接した連結プレート３を設けた構成とすることもできる。 Furthermore, in the steel joining structure of the present invention, in a steel joining structure for joining the ends of a first steel material 10 and a second steel material 11 having at least adjacent flanges 12 and webs 13, a transmission plate 2 is provided on one side of the web 13 of the first steel material 10, which is arranged parallel to the surface of the web 13 without contacting the web 13, and welded to the back surface of the end of the flange 12, and a connecting plate 3 is provided on the other side of the web 13, which is arranged parallel to the surface of the web 13 without contacting the web 13, and protrudes from the end of the first steel material, and welded to the back surface of the end of the flange 12.

また、第２の鋼材１１のウエッブ１３の片側においても、ウエッブ１３に接触せず、該ウエッブ１３の表面に対して平行かつ、第２の鋼材の端部から突出するように配設し、フランジ１２の端部裏面に溶接された連結プレート３を設けるとともに、ウエッブ１３の他の片側において、ウエッブ１３に接触せず、該ウエッブ１３の表面に対して平行に配設し、フランジ１２の端部裏面に溶接された伝達プレート２とを備えた構成とすることができる。そして、第１の鋼材１０の伝達プレート２と第２の鋼材１１の連結プレート３及び、第１の鋼材１０の連結プレート３と第２の鋼材１１の伝達プレート２の各々を密着してボルト接合される。 Also, on one side of the web 13 of the second steel material 11, a connecting plate 3 is provided that is not in contact with the web 13, is parallel to the surface of the web 13, and is arranged so as to protrude from the end of the second steel material, and is welded to the back surface of the end of the flange 12, and on the other side of the web 13, a transmission plate 2 is provided that is not in contact with the web 13, is parallel to the surface of the web 13, and is welded to the back surface of the end of the flange 12. Then, the transmission plate 2 of the first steel material 10 and the connection plate 3 of the second steel material 11, and the connection plate 3 of the first steel material 10 and the transmission plate 2 of the second steel material 11 are each bolted in close contact with each other.

＜第７実施形態＞
具体的には、第７実施形態として図１３、図１４に示すように、隣り合う第１の鋼材としてのＨ形鋼１０と第２の鋼材としてのＨ形鋼１１の端部同士を接合する接合構造において、第１の鋼材としてのＨ形鋼１０のウエッブ１３の片側に伝達プレート２を設け、ウエッブ１３の他の片側に、Ｈ形鋼１０の端部から突出するように連結プレート３を設ける。 Seventh Embodiment
Specifically, as shown in Figures 13 and 14 as the seventh embodiment, in a joining structure in which the ends of adjacent H-shaped steel 10 as a first steel material and H-shaped steel 11 as a second steel material are joined together, a transmission plate 2 is provided on one side of a web 13 of the H-shaped steel 10 as the first steel material, and a connecting plate 3 is provided on the other side of the web 13 so as to protrude from the end of the H-shaped steel 10.

また、第２の鋼材としてのＨ型鋼１１のウエッブ１３の片側においても、Ｈ形鋼１１の端部から突出するように連結プレート３を設けるとともに、ウエッブ１３の他の片側に、伝達プレート２とを設ける。即ち、第１の鋼材としてのＨ型鋼１０及び第２の鋼材としてのＨ型鋼１１において、ウエッブ１３の左右各々に、連結プレート３と伝達プレート２を設けた構成としている。 Also, on one side of the web 13 of the H-shaped steel 11 as the second steel material, a connecting plate 3 is provided so as to protrude from the end of the H-shaped steel 11, and a transmission plate 2 is provided on the other side of the web 13. That is, in the H-shaped steel 10 as the first steel material and the H-shaped steel 11 as the second steel material, a connecting plate 3 and a transmission plate 2 are provided on each of the left and right sides of the web 13.

そして、第１の鋼材としてのＨ型鋼１０の伝達プレート２と第２の鋼材としてのＨ型鋼１１の連結プレート３及び、第１の鋼材としてのＨ型鋼１０の連結プレート３と第２の鋼材としてのＨ型鋼１１の伝達プレート２の各々を密着させてボルト接合する。 Then, the transmission plate 2 of the H-shaped steel 10 as the first steel material and the connecting plate 3 of the H-shaped steel 11 as the second steel material, and the connecting plate 3 of the H-shaped steel 10 as the first steel material and the transmission plate 2 of the H-shaped steel 11 as the second steel material are each tightly attached and bolted together.

なお、第７実施形態においても、図１３、図１４に示すように、Ｈ形鋼１０、１１のウエッブ１３に対して垂直方向で、伝達プレート２又は連結プレート３の少なくともいずれかの端部にスチフナ１９を溶接することができる。また、その際、特に高力ボルトにより接合する場合には、図１４に示すように、伝達プレート２又は連結プレート３を設けた領域のウエッブを削除しておくのが好ましい。これにより内側から貫通孔５にボルト６を容易に挿入することが可能となる。 In the seventh embodiment, as shown in Figs. 13 and 14, a stiffener 19 can be welded to at least one end of the transmission plate 2 or the connecting plate 3 in a direction perpendicular to the web 13 of the H-shaped steel 10, 11. In addition, in this case, particularly when joining with high-strength bolts, it is preferable to remove the web in the area where the transmission plate 2 or the connecting plate 3 is provided, as shown in Fig. 14. This makes it possible to easily insert the bolt 6 into the through hole 5 from the inside.

また、第７実施形態では、連結プレート３と伝達プレート２の配設構成が各々一対ずつの、図５、図６に示す第３実施形態の配設構成と同様の構成にしているが、連結プレート３及び伝達プレート２の配設構成を上記第１、第２、第４、第５の実施形態の配設構成とすることもできる。 In addition, in the seventh embodiment, the arrangement of the connecting plates 3 and the transmission plates 2 is a pair, similar to the arrangement of the third embodiment shown in Figures 5 and 6, but the arrangement of the connecting plates 3 and the transmission plates 2 can also be the arrangement of the first, second, fourth, and fifth embodiments.

本発明の鋼材の接合構造では、さらに他の実施形態として、鋼材と構造物を接合する鋼材の接合構造とすることもできる。以下に、鋼材と構造物の接合構造について説明する。 As another embodiment of the steel material joint structure of the present invention, it can be a steel material joint structure that joins a steel material to a structure. The joint structure between a steel material and a structure is described below.

＜第８実施形態＞
第８実施形態では、図１５、図１６に示すように、垂直に配設するＨ形鋼４の端部に、第１実施形態と同様に、伝達プレート２がＨ形鋼のウエッブ１３に接触せず、ウエッブ１３の表面に対して平行に、かつ、フランジ１２の端部裏面に鋼材４の端部から突出しないように伝達プレート２が２枚ずつ設けられている。この２枚の伝達プレート２は、連結プレート３の厚み分の間隔を空けてフランジ１２の裏面に溶接部２１で溶接されている。 Eighth Embodiment
15 and 16, in the eighth embodiment, two transmission plates 2 are provided at each end of the vertically disposed H-shaped steel 4, similarly to the first embodiment, so that the transmission plates 2 do not come into contact with the web 13 of the H-shaped steel, are parallel to the surface of the web 13, and do not protrude from the end of the steel material 4 on the rear surface of the end of the flange 12. The two transmission plates 2 are welded to the rear surface of the flange 12 at welds 21 with a gap of the thickness of the connecting plate 3 between them.

また、連結プレート３は、水平に配設される構造物としてのＨ形鋼１５の上側のフランジ１２に設けた挿通孔１４に挿通して設けられ、さらに上下のフランジ１２に溶接されている。そして、Ｈ形鋼１５のフランジ１２から突出した連結プレート３を、Ｈ形鋼４端部の２枚の伝達プレート２で挟持し、ボルト６とナット７によりボルト接合している。 The connecting plate 3 is inserted through a through hole 14 provided in the upper flange 12 of the H-shaped steel 15, which is a horizontally arranged structure, and is welded to the upper and lower flanges 12. The connecting plate 3 protruding from the flange 12 of the H-shaped steel 15 is sandwiched between two transmission plates 2 at the end of the H-shaped steel 4 and is bolted together with bolts 6 and nuts 7.

本第８実施形態によれば、垂直に配設されるＨ形鋼４の端部において、上記第１実施形態と同様に、連結プレート３と２枚の伝達プレート２の接触面が２面の剪断面になり、この連結プレート２枚をウエッブ１３の両側からボルト６とナット７でボルト接合しているので、伝達プレート２と連結プレート３は、ボルト６による２面剪断接合となる。これにより、構造物としてのＨ形鋼１５と鋼材としてのＨ形鋼４を垂直方向に優れた接合強度で接合することが可能となる。 According to the eighth embodiment, at the end of the vertically arranged H-shaped steel 4, the contact surface between the connecting plate 3 and the two transmission plates 2 is a two-sided shear surface, as in the first embodiment, and these two connecting plates are bolted together from both sides of the web 13 with bolts 6 and nuts 7, so that the transmission plate 2 and the connecting plate 3 are joined by a two-sided shear joint with the bolts 6. This makes it possible to join the H-shaped steel 15 as a structure and the H-shaped steel 4 as a steel material with excellent joint strength in the vertical direction.

＜第９実施形態＞
また、第９実施形態として図１７に示すように、構造物１５としての基礎１６における構造物１５の柱脚アンカーの基礎定着板１８に、連結プレート３を垂直方向に向けて溶接し、これを鉄筋１７などで囲み、コンクリートで強固に一体に設けることもできる。そして、基礎１６から突出させた連結プレート３を、垂直に配設した、上記第８実施形態のＨ形鋼４と同様の構成のＨ形鋼４の伝達プレート２で挟持しボルト結合する。なお、この際、Ｈ形鋼４の伝達プレート２及び基礎１６に埋込まれた構造物１５である基礎定着板１８に溶接された連結プレート３の配置構成は、設計等に応じて上記第１～６実施形態のいずれの構成とすることもできる。 Ninth embodiment
17, as a ninth embodiment, a connecting plate 3 can be welded vertically to a foundation fixing plate 18 of a column base anchor of a structure 15 in a foundation 16 as a structure 15, surrounded by reinforcing bars 17 or the like, and firmly integrated with concrete. The connecting plate 3 protruding from the foundation 16 is then clamped and bolted to a transmission plate 2 of an H-shaped steel 4 arranged vertically and configured similarly to the H-shaped steel 4 of the eighth embodiment. In this case, the arrangement of the connecting plate 3 welded to the transmission plate 2 of the H-shaped steel 4 and the foundation fixing plate 18, which is the structure 15 embedded in the foundation 16, can be any of the configurations of the first to sixth embodiments according to the design, etc.

さらに、本発明の鋼材の接合構造では、少なくともフランジ１２とウエッブ１３を有する鋼材４と、構造物１５を接合する接合構造において、鋼材４のウエッブ１３の片側に、鋼材４のウエッブ１３に接触せず、かつ、ウエッブ１３の表面に対して平行に配設し、フランジ１２の端部裏面に溶接した伝達プレート２を設けるとともに、ウエッブ１３の他の片側において、ウエッブ１３に接触せず、該ウエッブ１３の表面に対して平行かつ、鋼材４の端部から突出するように配設し、鋼材４のフランジ１２の端部裏面に溶接した連結プレート３とを設けた構成とすることもできる。 Furthermore, in the steel joining structure of the present invention, in a joining structure joining a steel material 4 having at least a flange 12 and a web 13 to a structure 15, a transmission plate 2 is provided on one side of the web 13 of the steel material 4, not in contact with the web 13 of the steel material 4 and arranged parallel to the surface of the web 13, and welded to the back surface of the end of the flange 12, and a connecting plate 3 is provided on the other side of the web 13, not in contact with the web 13, arranged parallel to the surface of the web 13, and protruding from the end of the steel material 4, and welded to the back surface of the end of the flange 12 of the steel material 4.

また、構造物１５から突出するように、鋼材４に設けられた伝達プレート２と接続可能に設けられた連結プレート３を設けるとともに、鋼材４に設けられた連結プレート３と接続可能に設けられた伝達プレート２とを設けた構成とすることができる。そして、鋼材４の伝達プレート２と構造物１５の連結プレート３及び、鋼材４の連結プレート３と構造物１５の伝達プレート２の各々を密着させてボルト接合される。 In addition, a connecting plate 3 that is connectable to the transmission plate 2 provided on the steel material 4 can be provided so as to protrude from the structure 15, and a transmission plate 2 that is connectable to the connecting plate 3 provided on the steel material 4 can be provided. The transmission plate 2 of the steel material 4 and the connecting plate 3 of the structure 15, and the connecting plate 3 of the steel material 4 and the transmission plate 2 of the structure 15 are each tightly attached and bolted together.

＜第１０実施形態＞
具体的には、第１０実施形態として図１８に示すように、鋼材としてのＨ型鋼４と、構造物としてのＨ型鋼１５を接合する接合構造において、鋼材としてのＨ形鋼４のウエッブ１３の片側に伝達プレート２を設け、ウエッブ１３の他の片側に、Ｈ形鋼４の端部から突出するように連結プレート３を設ける。 Tenth Embodiment
Specifically, as shown in Figure 18 as the tenth embodiment, in a joining structure for joining an H-shaped steel 4 as a steel material and an H-shaped steel 15 as a structure, a transmission plate 2 is provided on one side of a web 13 of the H-shaped steel 4 as a steel material, and a connecting plate 3 is provided on the other side of the web 13 so as to protrude from the end of the H-shaped steel 4.

また、構造物としてのＨ型鋼１５から突出するように、鋼材としてのＨ型鋼４に設けられた伝達プレート２及び連結プレート３と接続可能に設けられた、連結プレート３及び伝達プレート２を設けた構成とすることができる。 In addition, a connecting plate 3 and a transmission plate 2 can be provided so as to protrude from the H-shaped steel 15 as the structure and be connectable to the transmission plate 2 and the connecting plate 3 provided on the H-shaped steel 4 as the steel material.

そして、鋼材としてのＨ型鋼４の伝達プレート２と構造物としてのＨ型鋼１５の連結プレート３及び、鋼材としてのＨ型鋼４の連結プレート３と構造物としてのＨ型鋼１５の伝達プレート２の各々を密着させてボルト接合する。 Then, the transmission plate 2 of the H-shaped steel 4 as the steel material and the connecting plate 3 of the H-shaped steel 15 as the structure, and the connecting plate 3 of the H-shaped steel 4 as the steel material and the transmission plate 2 of the H-shaped steel 15 as the structure are each tightly attached and bolted together.

なお、第１０実施形態においても、図１８に示すように、Ｈ形鋼４のウエッブ１３に対して垂直方向で、伝達プレート２と連結プレート３の端部にスチフナ１９を溶接することができる。また、その際、特に高力ボルトにより接合する場合には、図１８に示すように、伝達プレート２又は連結プレート３を設けた領域のウエッブ１３を削除しておくのが好ましい。これにより内側から貫通孔５にボルト６を挿入することが可能となる。 In the tenth embodiment, as shown in FIG. 18, stiffeners 19 can be welded to the ends of the transmission plate 2 and the connecting plate 3 in a direction perpendicular to the web 13 of the H-shaped steel 4. In this case, particularly when joining with high-strength bolts, it is preferable to remove the web 13 in the area where the transmission plate 2 or the connecting plate 3 is provided, as shown in FIG. 18. This makes it possible to insert the bolt 6 into the through hole 5 from the inside.

また、第１０実施形態では、連結プレート３と伝達プレート２の配設構成を、各々一対ずつの構成にしているが、例えば、上記第８実施形態の接合構造の連結プレート３及び伝達プレート２の配設構成とすることもできる。 In addition, in the tenth embodiment, the connecting plates 3 and the transmission plates 2 are arranged in pairs, but for example, the connecting plates 3 and the transmission plates 2 may be arranged in the same manner as in the eighth embodiment.

以上、本発明のＨ形鋼の継手構造について実施形態に基づいて説明したが、本発明は上記の実施形態に何ら限定されるものではなく、その要旨を逸脱しない範囲内において各種の変更が可能である。 The above describes the joint structure of the H-shaped steel of the present invention based on the embodiment, but the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

例えば、上記実施形態ではボルト６とナット７により剪断接合しているが、第３、第４実施形態のような１面剪断接合において高力ボルトによる摩擦接合にすることもできる。また、ボルト６は通常高力ボルトが用いられるが、超高力ボルトを用いることができ、これによりボルト６の本数を減らすことができる。 For example, in the above embodiment, the bolts 6 and nuts 7 are used for shear joints, but in the case of one-sided shear joints as in the third and fourth embodiments, friction joints using high-strength bolts can also be used. Also, while high-strength bolts are normally used for the bolts 6, ultra-high-strength bolts can be used, which allows the number of bolts 6 to be reduced.

また、上記第８実施形態、第９実施形態では、伝達プレート２を設けたＨ形鋼４を垂直に配設する構成としたが、伝達プレート２を設けたＨ形鋼４を水平に配設する等、設計に応じて種々の構成とすることができる。 In addition, in the eighth and ninth embodiments, the H-shaped steel 4 with the transmission plate 2 is arranged vertically, but various configurations can be used depending on the design, such as arranging the H-shaped steel 4 with the transmission plate 2 horizontally.

上記の構成を有する本発明の鋼材の接合構造によれば、従来のＨ形鋼の接合構造と同様の接合強度を有するとともに、部品点数を少なくでき、接合施工が容易であり、さらに、フランジ１２表面をフラットにすることが可能となる。 The steel joint structure of the present invention, which has the above configuration, has the same joint strength as the conventional H-shaped steel joint structure, while reducing the number of parts, making the joint construction easier, and further enabling the flange 12 surface to be made flat.

１０第１の鋼材（Ｈ形鋼）
１１第２の鋼材（Ｈ形鋼）
１２フランジ
１３ウエッブ
１４挿通孔
１５構造物（Ｈ形鋼）
１６基礎
１７鉄筋
１８基礎定着板
１９スチフナ
２伝達プレート
２１溶接部
３連結プレート
４鋼材（Ｈ形鋼）
４０、４１Ｈ形鋼
５貫通孔
６ボルト
７ナット
８、９添え板 10 First steel material (H-shaped steel)
11 Second steel material (H-shaped steel)
12 flange 13 web 14 insertion hole 15 structure (H-shaped steel)
16 Foundation 17 Reinforcing bar 18 Foundation anchor plate 19 Stiffener 2 Transmission plate 21 Welded part 3 Connection plate 4 Steel material (H-shaped steel)
40, 41 H-beam 5 Through hole 6 Bolt 7 Nut 8, 9 Splice plate

Claims

A joining structure for joining ends of a first steel material and a second steel material having at least a flange and a web adjacent to each other,
a transmission plate that is not in contact with the web of the first steel material, is disposed parallel to a surface of the web, and is welded to a rear surface of an end portion of the flange of the first steel material;
a connecting plate that is not in contact with the web of the second steel material, is arranged parallel to the surface of the web, and protrudes from the end of the second steel material, and is welded to the back surface of the end of the flange of the second steel material;
The transmission plate of the first steel material and the connection plate of the second steel material are provided on both sides of each of the webs,
A steel material joining structure, characterized in that the transmission plate of the first steel material and the connecting plate of the second steel material are joined in close contact with each other by bolts.

A joining structure for joining ends of a first steel material and a second steel material having at least a flange and a web adjacent to each other,
a transmission plate disposed on one side of the web of the first steel material, not in contact with the web, parallel to the surface of the web, and welded to the back surface of the end of the flange of the first steel material; and a connection plate disposed on the other side of the web, not in contact with the web, parallel to the surface of the web, and so as to protrude from the end of the first steel material, and welded to the back surface of the end of the flange of the first steel material;
a connection plate disposed on one side of the web of the second steel material so as not to come into contact with the web, parallel to a surface of the web, and so as to protrude from an end of the second steel material, and welded to a rear surface of an end of a flange of the second steel material; and a transmission plate disposed on the other side of the web so as not to come into contact with the web, parallel to the surface of the web, and welded to a rear surface of an end of a flange of the second steel material,
A steel material joining structure, characterized in that the transmission plate of the first steel material and the connecting plate of the second steel material, and the connecting plate of the first steel material and the transmission plate of the second steel material are each tightly joined with bolts.

The transmission plate is provided in two pieces with a gap therebetween that is equal to the thickness of the connection plate,
3. The joining structure of steel materials according to claim 1, wherein the connecting plate is sandwiched between the two transmission plates and joined by bolts.

The steel joint structure according to any one of claims 1 to 3, characterized in that a stiffener is connected to at least one of the transmission plate or the connecting plate.

The steel joint structure according to any one of claims 1 to 4, characterized in that the first steel material and the second steel material are H-shaped steel, T-shaped steel, channel steel, I-shaped steel, or a combination thereof.

A joining structure for joining a steel material having at least a flange and a web to a structure,
a transmission plate that is not in contact with the steel web and is disposed parallel to the surface of the web and is welded to the rear surface of the end of the flange;
a connecting plate provided so as to be connectable to a transmission plate provided on the steel material so as to protrude from the structure;
The transmission plate provided on the steel material is arranged in two pieces with a gap corresponding to the thickness of the connection plate provided on the structure,
The connection plate is sandwiched between the two transmission plates,
A steel material joining structure, characterized in that the transmission plate of the steel material and the connecting plate of the structure are joined in close contact with each other by bolts.

A joining structure for joining a steel material having at least a flange and a web to a structure,
On one side of the steel web,
a transmission plate that is not in contact with the steel web and is disposed parallel to the surface of the web and is welded to the rear surface of the end of the flange;
a connecting plate disposed on the other side of the web, not in contact with the web, parallel to the surface of the web, and protruding from the end of the steel material, and welded to the back surface of the end of the flange of the steel material;
A connection plate provided so as to be connectable to a transmission plate provided on the steel material so as to protrude from the structure, and a transmission plate provided so as to be connectable to the connection plate provided on the steel material,
A steel material joining structure, characterized in that the transmission plate of the steel material and the connecting plate of the structure, and the connecting plate of the steel material and the transmission plate of the structure are each tightly joined with bolts.

The joining structure of steel materials according to claim 6 or 7, characterized in that a stiffener is connected to the transmission plate provided on the steel material.

the transmission plate provided on the steel material and/or the structure is arranged in two pieces with a gap corresponding to the thickness of the connection plate provided on the structure and/or the steel material;
9. The joining structure of steel materials according to claim 7 or 8 , characterized in that the connecting plate is sandwiched between the two transmission plates and joined by bolts.

The steel joint structure according to any one of claims 6 to 9, characterized in that the steel is an H-shaped steel, a T-shaped steel, a channel steel, or an I-shaped steel, and the structure is an H-shaped steel, a channel steel, a Z-shaped steel, an I-shaped steel, a square steel pipe, or a foundation anchor plate.