JP5554441B2 - End joint structure of steel pipe members - Google Patents

End joint structure of steel pipe members Download PDF

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JP5554441B2
JP5554441B2 JP2013158640A JP2013158640A JP5554441B2 JP 5554441 B2 JP5554441 B2 JP 5554441B2 JP 2013158640 A JP2013158640 A JP 2013158640A JP 2013158640 A JP2013158640 A JP 2013158640A JP 5554441 B2 JP5554441 B2 JP 5554441B2
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pipe member
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哲美 岡本
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株式会社巴コーポレーション
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Description

本発明は、筋交い材等のブレースを構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造に関する。   The present invention is an end joint structure of a steel pipe member for joining a steel pipe member end constituting a brace such as a bracing member to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and the steel pipe member The present invention relates to an end joining structure of a steel pipe member in which an axial notch is formed at an end, and an end of one interrupt plate is inserted into the notch and joined by welding or the like.

従来、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合部は、図１０に示すように、ブレース等を構成する鋼管部材３０１の端部の軸方向に切込み３０１ａを形成し、該切込み３０１ａに１枚の割込み板３０２を挿入し、該割込み板３０２を挟む接合板３０５、３０５により他部材（例えば、図８（Ａ）のＡ−Ａ断面である図８（Ｂ）に図示のガセットプレート１１０等）と接合されることが多用されていた。一般的に、鋼管部材に大きな圧縮軸力が作用した場合には、図１０に示すような、鋼管部材の全体座屈に伴って部材端部を局部的に曲げようとする力Ｍが働くが、割込み板３０２が１枚の場合、１枚板の曲げ剛性は小さいので、割込み板３０２が接合板３０５、３０５とともに曲がってしまい、設計上期待していた圧縮耐力が得られないことがあった。   Conventionally, as shown in FIG. 10, the end joint part of a steel pipe member for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like A notch 301a is formed in the axial direction of the end portion of the steel pipe member 301 to be formed, one interrupt plate 302 is inserted into the notch 301a, and other members (for example, FIG. It is often used to be joined to the gusset plate 110 shown in FIG. In general, when a large compressive axial force is applied to a steel pipe member, a force M for locally bending the end portion of the steel pipe member as shown in FIG. When there is one interrupt plate 302, the bending rigidity of the single plate is small, so the interrupt plate 302 is bent together with the joining plates 305 and 305, and the compression strength expected in the design may not be obtained. .

例えば、図８（Ａ）に示すように、両端部の割込み板１０２、１０２が１枚板である鋼管筋交い材１０１、１０１が、柱１２０と梁１３０との交差部のガセットプレート１１０に、平板状の接合板１０５、１０５にて締結ボルト１０６、１０６・・・で接合されている架構において、地震力等Ｐにより筋交い材１０１に圧縮軸力Ｎが作用した場合、割込み板１０２、１０２の板厚が充分厚くなければ、図８（Ｂ）に示したように、割込み板１０２、１０２がイ部のところで接合板１０５、１０５とともに屈曲し、筋交い全体がＺ形に変形することがあり、地震力等Ｐによって作用する圧縮軸力Ｎに抵抗しきれなくなる虞れが生じた。また、仮に接合板１０５、１０５が充分厚く、あるいはリブ板付きであればその虞れはないが、接合板１０５と筋交い材１０１の端部との間の部分で割込み板１０２が屈曲する可能性が生じた。   For example, as shown in FIG. 8 (A), steel pipe bracing members 101, 101 each having interrupt plates 102, 102 at both ends are flattened on gusset plates 110 at the intersections between columns 120 and beams 130. When the compression axial force N acts on the bracing material 101 due to seismic force P or the like in the frame joined with the fastening bolts 106, 106... If the thickness is not sufficiently thick, as shown in FIG. 8 (B), the interrupting plates 102 and 102 may be bent together with the joining plates 105 and 105 at the portion i, and the entire bracing may be deformed into a Z shape. There is a possibility that the compression axial force N acting by the force P or the like cannot be completely resisted. Further, if the joining plates 105 and 105 are sufficiently thick or have a rib plate, there is no fear, but there is a possibility that the interrupting plate 102 bends at a portion between the joining plate 105 and the end of the brace 101. Occurred.

また、同様の現象は、図９に示したようなトラス構造の節点２００に集合する鋼管部材２０１、２０１・・・の端部接合部（割込み板２０２が１枚の場合には）においても起こり得た。鋼管サイズが大きい場合には、図１１に示すように、割込み板４０２を１枚板ではなく十字板とすることで、前述のような割込み板の曲がりは生じない。しかしながら、十字板形式の場合は、鋼管端部の切込み４０１ａが１枚板の場合の２倍の箇所数となるだけでなく、鋼管部材４０１の切込み４０１ａが増加することにより、鋼管部材４０１の板材内部に閉じ込められていた残留応力が開放されることによる鋼管断面形状の歪みが大きくなり、矯正の必要が生じて鋼管部材端部の加工手間と費用が余分に掛かっていた。   The same phenomenon also occurs at the end joints of the steel pipe members 201, 201... Gathered at the node 200 of the truss structure as shown in FIG. 9 (in the case of a single interrupt plate 202). Obtained. When the steel pipe size is large, as shown in FIG. 11, the interruption plate 402 is not a single plate but a cross plate so that the interruption plate is not bent as described above. However, in the case of the cross plate type, not only the number of cuts 401a at the end of the steel pipe is twice as many as that of a single plate, but also the number of cuts 401a in the steel pipe member 401 increases, so that the plate material of the steel pipe member 401 The distortion of the cross section of the steel pipe due to the release of the residual stress confined in the inside becomes large, and the need for correction arises, resulting in extra work and cost for the end of the steel pipe member.

また、鋼管部材のサイズが小さいままに割込み板４０２を敢えて１枚板ではなく十字板とすると、軸力がまともに接合ボルト４０６に伝達され、板厚だけでなく接合ボルト４０６の孔から割込み板４０２の縁までの寸法（縁あき寸法）を確保する必要上、割込み板４０２の幅が鋼管部材４０１の幅よりも大幅に広くなってしまい、その結果、接合部としての外観が著しくバランスの悪いものになり、意匠的に望ましくないものとなった。このように、１枚の割込み板で済む鋼管部材の端部を、曲げ剛性確保のために敢えて十字板形式にすると、上述したような加工手間、費用、意匠面で多くの問題があった。   Further, if the interrupt plate 402 is dared to be a cross plate instead of a single plate while the size of the steel pipe member is small, the axial force is transmitted to the joint bolt 406 properly, and not only the plate thickness but also the interrupt plate from the hole of the joint bolt 406. Since it is necessary to ensure the dimension up to the edge of 402 (edge dimension), the width of the interrupt plate 402 is significantly wider than the width of the steel pipe member 401. As a result, the appearance as a joint is extremely unbalanced. It became undesired in terms of design. As described above, if the end portion of the steel pipe member that requires only one interrupt plate is made into a cross plate type in order to ensure bending rigidity, there are many problems in processing time, cost, and design as described above.

一方、筋交い材等のブレースを構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合部における補剛に関する技術としては、下記特許文献１に係る、ガセットプレートを用いた構造物の接合構造および構造物が提案されている。   On the other hand, as a technique related to stiffening at the end joint portion of the steel pipe member that joins the other end member such as a gusset plate fixed to the column beam, the truss frame, etc. A joint structure and a structure using a gusset plate according to Patent Document 1 have been proposed.

特開２００４−３２４２７０号公報（要約書参照）JP 2004-324270 A (refer to abstract)

前記特許文献１に開示されたガセットプレートを用いた構造物の接合構造および構造物について、図１２を用いて説明すると、図１２（Ａ）に示すように、柱５３１に対して水平状の梁５３２が取り付けられた構造物において、これらの構造物を構成する柱５３１および梁５３２等の軸力部材の、互いの交差部（格点である節点）にガセットプレート５２１を介して斜材５０３が介設される。図１２（Ｂ）に示すように、ガセットプレート５２１の２辺には鉛直接合片５０５と水平接合片５０６が接合され、それらの接合片５０５、５０６がそれぞれ柱５３１、梁５３２にボルト等により固定される。そして、制振ブレース等の斜材５０３の接合端部５０４が所定長のＬ型形鋼またはリブ付きスプライスプレート５２０からなる連結部材５２２の一端側をガセットプレート５２１に、ボルトにて接合するとともに、他端側を斜材５０３の接合端部５０４にボルト等により接合したものである。   The structure and structure of the structure using the gusset plate disclosed in Patent Document 1 will be described with reference to FIG. 12. As shown in FIG. In the structure to which the 532 is attached, the diagonal member 503 is provided via the gusset plate 521 at the intersection (node which is a rating point) of the axial force members such as the column 531 and the beam 532 constituting the structure. It is installed. As shown in FIG. 12B, a vertical joining piece 505 and a horizontal joining piece 506 are joined to two sides of the gusset plate 521, and these joining pieces 505 and 506 are fixed to a column 531 and a beam 532 by bolts or the like, respectively. Is done. Then, the joining end 504 of the diagonal member 503 such as a vibration-damping brace joins one end side of the connecting member 522 formed of a predetermined length L-shaped steel or ribbed splice plate 520 to the gusset plate 521 with a bolt, The other end is joined to the joining end 504 of the diagonal member 503 with a bolt or the like.

このように構成することによって、制振ブレース等の斜材５０３が取り付けられるガセットプレート５２１が、補剛リブプレートを不要とした所定長のＬ型形鋼またはリブ付きスプライスプレート５２０の４本を組み合わせて構成した連結部材５２２により、斜材５０３に作用した圧縮力によって面外座屈や面外変形を引き起こさないようにしたものである。しかしながら、この特許文献１に開示された接合構造では、斜材５０３が接合されるガセットプレート５２１について面外方向の曲げ剛性を向上させることが目的であり、斜材端部接合部の局部的な屈曲防止を意図していない。また、斜材端部部分を局部的に曲げ補剛する構造については記述も示唆もない。   By configuring in this way, the gusset plate 521 to which the diagonal member 503 such as a vibration-damping brace is attached is a combination of four L-shaped steel plates or ribbed splice plates 520 that do not require a stiffening rib plate. The connecting member 522 configured as described above prevents the out-of-plane buckling or the out-of-plane deformation from being caused by the compressive force acting on the diagonal member 503. However, the joint structure disclosed in Patent Document 1 is intended to improve the bending rigidity in the out-of-plane direction of the gusset plate 521 to which the oblique member 503 is joined, and the oblique member end joint portion is localized. It is not intended to prevent bending. Further, there is no description or suggestion about a structure in which the end portion of the diagonal member is locally bent and stiffened.

そこで本発明は、前記従来の鋼管部材の端部接合構造における課題を解決して、鋼管部材端部に形成した軸方向の切込みに１枚の割込み板を挿入するだけの簡素な接合構造にても高い接合強度および曲げ剛性が確保され、加工手間が少なく、費用も安価な鋼管部材の端部接合構造を提供することを目的とする。   Therefore, the present invention solves the problems in the conventional end joining structure of the steel pipe member, and has a simple joining structure in which only one interrupt plate is inserted into the axial cut formed in the end of the steel pipe member. Another object of the present invention is to provide an end joint structure for a steel pipe member that ensures high joint strength and bending rigidity, requires less work, and is inexpensive.

このため本発明は、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことを特徴とする。また本発明は、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合したことを特徴とする。また本発明は、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことを特徴とする。また本発明は、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合したことを特徴とする。また本発明は、前記鋼管部材端面の開口部を塞ぐための蓋板を設けるとともに、該蓋板を前記割込み板および補剛板に溶接等により一体化して接合したことを特徴とするもので、これらを課題解決のための手段とする。   For this reason, the present invention is an end joint structure of a steel pipe member for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame, etc. In an end joint structure of a steel pipe member in which an end of an interrupt plate is inserted into the notch and joined by welding or the like, an opening is formed in the end of the steel pipe member. A stiffening plate erected perpendicularly to the outer surface of the lid plate is joined to a rib plate erected on a joining plate for joining the interrupt plate and the other member by a fastening bolt or the like. . Further, the present invention is an end joint structure of a steel pipe member for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and the steel pipe member end part In an end joint structure of a steel pipe member in which an axial notch is formed and an end of a single interrupt plate is inserted into the notch and joined by welding or the like, it is provided to close the opening of the end face of the steel pipe member. The stiffening plate erected perpendicularly to the outer surface of the lid plate is directly joined to the interruption plate by welding or the like without being joined to the joining plate for joining the interruption plate and other members. Further, the present invention is an end joint structure of a steel pipe member for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and the steel pipe member end part In an end joint structure of a steel pipe member in which an axial notch is formed and an end of one interrupt plate is inserted into the notch and joined by welding or the like, the inner end and the outer end of the steel pipe member end A stiffening plate that is orthogonal to at least one surface of the interrupt plate, and the stiffening plate is joined directly to the steel pipe member main body without joining the interrupt plate and the other member. It is characterized in that it is joined to a rib plate standing on the plate by a fastening bolt or the like. Further, the present invention is an end joint structure of a steel pipe member for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and the steel pipe member end part In an end joint structure of a steel pipe member in which an axial notch is formed and an end of one interrupt plate is inserted into the notch and joined by welding or the like, the inner end and the outer end of the steel pipe member end A stiffening plate perpendicular to at least one surface of the interrupt plate, and the stiffening plate is joined directly to the steel pipe member main body without joining the interrupt plate and the other member. It is characterized in that it is directly joined to the interrupting plate by welding or the like without any contact. In addition, the present invention is characterized in that a lid plate for closing the opening of the steel pipe member end face is provided, and the lid plate is integrally joined to the interrupt plate and the stiffening plate by welding or the like. These are the means for solving the problem.

本発明によれば、請求項１の構成要件である、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことにより、従来の１枚板形式のように鋼管部材の強度低下を招いて矯正が必要となったり、十字板形式のように加工手間を要してコスト高になることもなく、曲げ応力等を蓋板や補剛板を介して効果的に接合板およびリブ板に分散できるので、低廉な１枚の割込み板形式にても、割込み板の座屈等を有効に防止できる。また、蓋板による鋼管部材端部の開口閉塞により、鋼管部材内部の腐食等も防止できる。さらに、リブ板の立設による接合板の補剛効果も発揮されて、接合板自体の厚さも薄くできる。   According to the present invention, the end joining of the steel pipe member which joins the steel pipe member end constituting the brace or the like to another member such as a gusset plate fixed to the column beam or the truss frame, etc. In the end joint structure of a steel pipe member, wherein the steel pipe member end is formed by forming an axial cut at the end of the steel pipe member, and inserting the end of one interrupt plate into the cut and joining by welding or the like. A stiffening plate erected perpendicularly to the outer surface of the cover plate provided to close the opening of the end surface of the member is fastened to a rib plate erected on the joining plate that joins the interrupt plate and the other member. As a result of joining by means of, etc., the strength of steel pipe members is reduced as in the conventional single plate type, and correction is not required, and there is no need for processing as in the cross plate type, resulting in high costs. Bending stress etc. can be effectively connected through the cover plate and stiffening plate. Because dispersible in the plate and the rib plate, also at inexpensive single interrupt plate format, can be effectively prevented buckling interrupt plate. Moreover, the corrosion etc. inside a steel pipe member can be prevented by the opening obstruction | occlusion of the steel pipe member end part by a cover plate. Furthermore, the stiffening effect of the joining plate by standing the rib plate is also exhibited, and the thickness of the joining plate itself can be reduced.

また、請求項２の構成要件である、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合したことにより、割込み板に作用する曲げ力に対しては、接合板と取り合うことなく干渉されずに独立して溶接等により直接溶接された補剛板により高い耐性を示すとともに、割込み板と他部材に重合して接合された接合板の補剛効果によっても曲げが抑制される。   Further, the steel pipe member end joining structure for joining the steel pipe member end constituting the brace or the like to another member such as a gusset plate fixed to a column beam or a truss frame, which is a constituent element of claim 2. In the end joining structure of the steel pipe member in which the end of the steel pipe member is formed with an axial cut, and the end of one interrupt plate is inserted into the cut and joined by welding or the like, the opening of the end face of the steel pipe member The stiffening plate erected perpendicularly to the outer surface of the lid plate provided to close the part was joined directly to the interruption plate by welding or the like without joining the joining plate for joining the interruption plate and other members. Therefore, with respect to the bending force acting on the interrupting plate, the stiffening plate directly welded by welding or the like without interfering with the joining plate without interfering with it shows high resistance, and the interrupting plate and other members Polymerized and joined to Also bent by stiffening effect of the plywood is suppressed.

さらに、請求項３の構成要件である、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことにより、鋼管部材の全体座屈に伴う曲げ力により補剛板に作用した力は、補剛板が溶接等により接合された鋼管部材内部の割込み板の部分を介して、鋼管部材本体に伝達されて曲げ抵抗力が発揮され、接合部の折曲が抑制される。また、リブ板の立設による接合板の補剛効果も発揮されて、接合板自体の厚さも薄くできる。さらに、蓋板を省略できるので、溶融亜鉛メッキする等の蓋板を設けにくい場合等に適している。   Further, the steel pipe member end joining structure for joining the steel pipe member end constituting the brace etc. to another member such as a gusset plate fixed to the column beam, truss frame or the like, which is a constituent requirement of claim 3. In the steel pipe member end joining structure, an axial notch is formed in the steel pipe member end, and the end of one interrupt plate is inserted into the notch and joined by welding or the like. A stiffening plate perpendicular to at least one surface of the interrupt plate is provided so as to be continuous with the inside and outside, and the stiffening plate is not directly joined to the steel pipe member body, and the interrupt plate and the other The force acting on the stiffener plate due to the bending force associated with the overall buckling of the steel pipe member by joining to the rib plate standing on the joint plate that joins the member with the fastening bolt, etc. The part of the interrupt plate inside the steel pipe member joined by And, bending resistance is transmitted to the steel pipe member body is exhibited, bent in the joint is suppressed. Moreover, the stiffening effect of the joining plate by standing the rib plate is also exhibited, and the thickness of the joining plate itself can be reduced. Furthermore, since the cover plate can be omitted, it is suitable when it is difficult to provide a cover plate such as hot dip galvanization.

さらにまた、請求項４の構成要件である、ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合した場合は、請求項３の構成要件のものと同様に、鋼管部材の全体座屈に伴う曲げ力により補剛板に作用した力は、補剛板が溶接等により接合された鋼管部材内部の割込み板の部分を介して、鋼管部材本体に伝達されて曲げ抵抗力が発揮されて接合部の折曲が抑制されることはもとより、接合板と取り合うことなく干渉されずに独立して溶接等により直接溶接された補剛板により高い耐性を示すとともに、割込み板と他部材に重合して接合された接合板の補剛効果によっても曲げが抑制され、また、蓋板を省略できるので、溶融亜鉛メッキする等の蓋板を設けにくい場合等に適している。   Furthermore, the steel pipe member end joining structure for joining the steel pipe member end constituting the brace or the like to another member such as a gusset plate fixed to a column beam or a truss frame or the like, which is a constituent element of claim 4. In the steel pipe member end joining structure, an axial notch is formed in the steel pipe member end, and the end of one interrupt plate is inserted into the notch and joined by welding or the like. A stiffening plate perpendicular to at least one surface of the interruption plate is erected so as to be continuous with the inner and outer sides of the interruption plate, and the stiffening plate is not directly joined to the steel pipe member main body, When joining directly to the interrupting plate without welding with the joining plate for joining the member, the stiffening is performed by the bending force accompanying the overall buckling of the steel pipe member as in the case of the constituent elements of claim 3. The force acting on the plate is determined by welding, etc. It is transmitted to the steel pipe member main body through the interrupting plate part inside the joined steel pipe member and exerts bending resistance, and the bending of the joint is suppressed, and it is interfered without engaging with the joining plate. In addition, the stiffening plate that is directly welded directly by welding or the like shows high resistance, and the bending effect is also suppressed by the stiffening effect of the joining plate that is overlapped and joined to the interrupt plate and other members. Since the plate can be omitted, it is suitable when it is difficult to provide a cover plate such as hot dip galvanization.

また、請求項５の構成要件である、前記鋼管部材端面の開口部を塞ぐための蓋板を設けるとともに、該蓋板を前記割込み板および補剛板に溶接等により一体化して接合した場合は、鋼管部材に圧縮軸力が作用して、全体座屈に伴って部材端部を局部的に曲げようとする力が補剛板に作用しても、溶接等で接合された鋼管部材内部の割込み板の部分を介すると同時に、蓋板をも介して鋼管部材の本体に伝達されるので、高い曲げ抵抗が発揮される。かくして、鋼管部材端部接合部の曲げ力の鋼管部材本体への伝達が確実かつ滑らかになされて、１枚の割込み板形式にも拘らず、従来の十字板形式の場合と同等の曲げ剛性の確保が可能となる。   Further, when a cover plate for closing the opening of the end surface of the steel pipe member, which is a constituent element of claim 5, is provided, and the cover plate is integrally joined to the interrupt plate and the stiffening plate by welding or the like. Even if the compression axial force acts on the steel pipe member and the force to locally bend the end of the member with the overall buckling acts on the stiffening plate, the inside of the steel pipe member joined by welding or the like Since it is transmitted to the main body of the steel pipe member through the cover plate at the same time as the interrupt plate, a high bending resistance is exhibited. Thus, the bending force of the end joint of the steel pipe member is reliably and smoothly transmitted to the steel pipe member body, and the bending rigidity equivalent to that of the conventional cross board type is achieved despite the single interruption plate type. Securement is possible.

本発明の鋼管部材の端部接合構造の第１実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 1st Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第２実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 2nd Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第３実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 3rd Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第４実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 4th Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第５実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 5th Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第６実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 6th Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 本発明の鋼管部材の端部接合構造の第７実施例を示す側面図およびそのＢ−Ｂ断面図である。It is the side view which shows 7th Example of the edge part joining structure of the steel pipe member of this invention, and its BB sectional drawing. 従来の、割込み板が１枚の部材端部接合部を有する鋼管部材筋交いの接合部の折曲り現象を説明する正面図およびそのＡ−Ａ断面図である。It is the front view explaining the bending phenomenon of the junction part of the steel pipe member bracing where the interruption | interruption board has one member edge part junction part, and its AA sectional drawing. 従来の、トラス構造節点に集合する鋼管部材端部の接合部の例を示す要部拡大図である。It is a principal part enlarged view which shows the example of the junction part of the steel pipe member edge part gathered at the conventional truss structure node. 従来の、割込み板が１枚の鋼管部材端部接合部の側面図およびそのＢ−Ｂ断面図である。It is the side view of the conventional steel pipe member edge part junction part with one interruption | blocking board, and its BB sectional drawing. 従来の、割込み板が十字板の鋼管部材端部接合部の側面図およびそのＢ−Ｂ断面図である。The conventional interruption | blocking board is a side view of the steel pipe member edge part junction part of a cross board, and its BB sectional drawing. 従来の、特許文献１に記載のガセットプレート用いた構造物の接合構造および構築物の説明図である。It is explanatory drawing of the joining structure of a structure using the gusset plate of the conventional patent document 1, and a structure.

以下、本発明の鋼管部材の端部接合構造を実施するための好適な形態を図面に基づいて説明する。図１は本発明の鋼管部材の端部接合構造の第１実施例を示す側面図およびそのＢ−Ｂ断面図である。ブレース等を構成する鋼管部材１の端部に軸方向の切込み１ａ（好適には直径上に対向して２条）を形成し、該切込み１ａに平板状の１枚の割込み板２を挿入して、溶接等にて鋼管部材１に接合して構成される鋼管部材端部の接合構造において、その鋼管部材１の端面の開口部を塞ぐために、溶接等により接合して取り付けた蓋板３の外面（鋼管部材１の内部と反対側）に直交させて（軸方向に）補剛板４を２枚あるいは１枚を立設形成する。そして、該補剛板４を、前記割込み板２を柱梁やトラス枠等に固定されたガセットプレート等の他部材３０に接合するための接合板５に立設されたリブ板５ａに締結ボルト６にて接合する。なお、図１（Ｂ）にて理解されるように、蓋板３に直交して立設される補剛板４を鋼管部材１の芯に一致させた場合は、割込み板２の一方の面に締結ボルト６等により接合される接合板５に立設されるリブ板５ａは、当然ながら補剛板４の芯とは偏芯して補剛板４に取り付けられる。割込み板２の他方の面に接合される接合板５のリブ板５ａは反対側に偏芯して補剛板４に取り付けられることは言うまでもない。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out an end joint structure for steel pipe members according to the invention will be described with reference to the drawings. FIG. 1 is a side view showing a first embodiment of an end joint structure for steel pipe members according to the present invention and a sectional view taken along the line BB. An axial notch 1a (preferably two strips opposite to each other in diameter) is formed at the end of a steel pipe member 1 constituting a brace or the like, and a flat interrupt plate 2 is inserted into the notch 1a. In the joining structure of the end portion of the steel pipe member that is joined to the steel pipe member 1 by welding or the like, the lid plate 3 that is joined and attached by welding or the like to close the opening of the end face of the steel pipe member 1 Two or one stiffening plate 4 is erected and formed perpendicular to the outer surface (on the opposite side to the inside of the steel pipe member 1). Then, the stiffening plate 4 is fastened to a rib plate 5a erected on a joining plate 5 for joining the interruption plate 2 to another member 30 such as a gusset plate fixed to a column beam, a truss frame or the like. Join at 6. In addition, as understood in FIG. 1B, when the stiffening plate 4 erected perpendicularly to the lid plate 3 is aligned with the core of the steel pipe member 1, one surface of the interrupt plate 2 The rib plate 5 a erected on the joining plate 5 joined by the fastening bolt 6 or the like is naturally attached to the stiffening plate 4 eccentrically from the core of the stiffening plate 4. Needless to say, the rib plate 5a of the joining plate 5 joined to the other surface of the interrupt plate 2 is attached to the stiffening plate 4 eccentrically on the opposite side.

ここで、前記接合板５は、１枚の板にリブ板５ａをＴ字状に立設形成したものに限らず、Ｌ形断面の接合材（例えばＬ形鋼等）を一対で用いて、前記補剛板４を両面から挟持して締結ボルト６にて接合してもよい。このような構成により、鋼管部材１に圧縮軸力が作用した場合、鋼管部材１の軸力は割込み板２から接合板５と締結ボルト６とを介してガセットプレート等の他部材３０へ伝達されるが、その鋼管部材１の全体座屈に伴って部材端部を局部的に曲げようとする力Ｍに対しては、相互に距離を置いて蓋板３に立設された２枚の補剛板４、４が曲げ抵抗力を発揮するので、割込み板２自身は曲げられることはなく、図８（Ｂ）に示したイ部のような折曲りを回避できる。   Here, the joining plate 5 is not limited to one plate in which the rib plate 5a is erected in a T-shape, and a pair of joining materials (for example, L-shaped steel) having an L-shaped cross section are used, The stiffening plate 4 may be clamped from both sides and joined by fastening bolts 6. With such a configuration, when a compression axial force acts on the steel pipe member 1, the axial force of the steel pipe member 1 is transmitted from the interrupt plate 2 to the other member 30 such as a gusset plate via the joining plate 5 and the fastening bolt 6. However, with respect to the force M that tries to locally bend the end of the member in accordance with the overall buckling of the steel pipe member 1, the two complementary members installed on the lid plate 3 are spaced apart from each other. Since the rigid plates 4 and 4 exhibit bending resistance, the interrupt plate 2 itself is not bent, and bending as shown in FIG. 8B can be avoided.

なお、部材端部を曲げようと力Ｍに抵抗しようとする力は、補剛板４から蓋板３を介して鋼管部材１に伝達されるが、蓋板３の板厚が薄過ぎると補剛板４からの力が鋼管部材１の端面に集中力として作用するため、鋼管部材１の端面と蓋板３との溶接部等に亀裂が生じる可能性がある。それを回避するために、蓋板３の板厚はある程度厚いもの（補剛板４に作用する力を、溶接部の強度以下の応力レベルに分散できるのに必要な板厚）にすることが望ましい。あるいは、鋼管部材１の端面と蓋板３との溶接部で補剛板４が取り付く位置に、添え板１０等を溶接する等の局部補強方法によっても良い。   Note that the force to resist the force M to bend the end of the member is transmitted from the stiffening plate 4 to the steel pipe member 1 through the lid plate 3, but if the plate thickness of the lid plate 3 is too thin, the force is compensated. Since the force from the rigid plate 4 acts as a concentrated force on the end surface of the steel pipe member 1, there is a possibility that a crack occurs in the welded portion between the end surface of the steel pipe member 1 and the lid plate 3. In order to avoid this, the cover plate 3 has a certain thickness (thickness necessary to disperse the force acting on the stiffening plate 4 to a stress level below the strength of the weld). desirable. Alternatively, a local reinforcement method such as welding the attachment plate 10 or the like at a position where the stiffening plate 4 is attached at the welded portion between the end surface of the steel pipe member 1 and the cover plate 3 may be used.

図２は本発明の鋼管部材の端部接合構造の第２実施例を示す側面図およびそのＢ−Ｂ断面図である。本実施例では、前記第１実施例のものにおいて、割込み板２と他部材３０とを接合する接合板５に立設されたリブ板５ａの長さを、接合板５本体に対して割込み板２の先端２ａ（図２（Ｂ））までとし、他部材３０の面外剛性を高めるために補剛リブ３０ａ、３０ａを立設したものである。この場合、接合部端部の曲げ変形は、リブ板５ａの先端付近の接合板５、５（割込み板２の先端２ａ付近）で発生するが、鋼管部材１の端部接合部では発生しないので、図８（Ｂ）に示すような部材全体がＺ形に変形することなく、鋼管部材１は圧縮耐力を発揮し得る。本実施例では、スペースに制約がある場合等に対応させてリブ板５ａの長さを短くせざるを得ない場合にも対応できる。   FIG. 2 is a side view showing a second embodiment of the end joint structure for steel pipe members according to the present invention and a sectional view taken along line BB. In this embodiment, the length of the rib plate 5a erected on the joining plate 5 that joins the interrupt plate 2 and the other member 30 in the first embodiment is set to the interrupt plate with respect to the joining plate 5 main body. In order to increase the out-of-plane rigidity of the other member 30, the stiffening ribs 30a and 30a are erected up to the leading end 2a (FIG. 2B). In this case, the bending deformation of the joint end portion occurs in the joint plates 5 and 5 (near the tip 2a of the interrupt plate 2) near the tip of the rib plate 5a, but does not occur in the end joint of the steel pipe member 1. The steel pipe member 1 can exhibit compression strength without the whole member as shown in FIG. In the present embodiment, it is possible to cope with a case where the length of the rib plate 5a has to be shortened in correspondence with a case where space is limited.

図３は本発明の鋼管部材の端部接合構造の第３実施例を示す側面図およびそのＢ−Ｂ断面図である。鋼管部材１の端部に軸方向の切込み１ａを形成し、該切込み１ａに１枚の割込み板２の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材１の端面の開口部を塞ぐために接合された蓋板３の外面に直交させて立設した補剛板４を、前記割込み板２と他部材３０とを接合する接合板５とは取り合うことなく、直接割込み板２に溶接等により接合したものである。補剛板４は割込み板２の先端２ａまでとし、他部材３０の面外剛性を高めるために縁部に補剛リブ３０ａ、３０ａを立設した。接合板５、５はリブ板５ａを設けない代わりに板厚を厚くするとともに、補剛板４と割込み板２とが交差する溶接部との干渉を回避するために切込み５ｂ（隙間）を形成した。これにより、割込み板２に作用する曲げ力に対しては、補剛板４の先端付近の接合板５、５（割込み板２の先端２ａ付近）で曲げ変形が発生するが、鋼管部材１の端部接合部では発生しないので、図８（Ｂ）に示したような部材全体がＺ形に変形することはない。その際、接合板５と取り合うことなく干渉されずに独立して溶接等により直接溶接された補剛板４により高い耐性を示すとともに、割込み板２と他部材３０に重合して接合された接合板５の補剛効果によっても曲げが抑制される。   FIG. 3 is a side view showing a third embodiment of the end joint structure for steel pipe members according to the present invention and a sectional view taken along line BB. In the end joint structure of a steel pipe member in which an axial notch 1a is formed at the end of the steel pipe member 1, and the end of one interrupt plate 2 is inserted into the notch 1a and joined by welding or the like, the steel pipe member The stiffening plate 4 erected so as to be orthogonal to the outer surface of the cover plate 3 joined to close the opening of the end face 1 is not connected to the joining plate 5 that joins the interrupt plate 2 and the other member 30. , Directly joined to the interrupt plate 2 by welding or the like. The stiffening plate 4 extends up to the tip 2a of the interrupt plate 2, and stiffening ribs 30a and 30a are provided upright at the edge in order to increase the out-of-plane rigidity of the other member 30. The joining plates 5 and 5 are not provided with the rib plate 5a, but are increased in thickness, and a notch 5b (gap) is formed to avoid interference with the welded portion where the stiffening plate 4 and the interrupting plate 2 intersect. did. Thereby, with respect to the bending force acting on the interrupt plate 2, bending deformation occurs in the joining plates 5 and 5 (near the tip 2a of the interrupt plate 2) near the tip of the stiffening plate 4, but the steel pipe member 1 Since it does not occur at the end joint, the entire member as shown in FIG. 8B is not deformed into a Z shape. In this case, the stiffening plate 4 which is directly welded directly by welding or the like without interfering with the joining plate 5 without being interfering with it exhibits high resistance, and is joined by being superposed on the interruption plate 2 and the other member 30. Bending is also suppressed by the stiffening effect of the plate 5.

図４は本発明の鋼管部材の端部接合構造の第４実施例を示す側面図およびそのＢ−Ｂ断面図である。本実施例のものは、前述したものとは異なり、蓋板３を省略した構成となっている。鋼管部材１の端部の内外部に連続するように割込み板２の少なくとも一方の面（片面あるいは両面）に直交する補剛板４を溶接等により立設し、かつ該補剛板４は、鋼管部材１本体とは直接接合されることなく、前記割込み板２と前記他部材３０とを接合する接合板５に立設したリブ板５ａに、締結ボルト６等により接合したものである。本実施例では、鋼管部材１に圧縮軸力が作用し、その鋼管部材１の全体座屈に伴って部材端部を局部的に曲げようとする力Ｍを受けた場合、補剛板４に作用した力は、補剛板４が溶接等で接合された鋼管部材１の内部の割込み板２の部分を介して、鋼管部材１の本体に伝達されることにより曲げ抵抗力を発揮するので、図８（Ｂ）に示したような折れ曲がりを回避できる。また、リブ板５ａの立設による接合板５の補剛効果も発揮されて、接合板５自体の厚さも薄くできる。さらに、蓋板３を省略できるので、溶融亜鉛メッキする等の蓋板３を設けにくい場合等に適している。   FIG. 4 is a side view showing a fourth embodiment of the end joint structure for steel pipe members according to the present invention and a sectional view taken along line BB. The thing of a present Example has the structure which abbreviate | omitted the cover board 3 unlike what was mentioned above. A stiffening plate 4 perpendicular to at least one surface (one side or both sides) of the interrupt plate 2 is erected by welding or the like so as to be continuous with the inside and outside of the end portion of the steel pipe member 1, and the stiffening plate 4 is The steel pipe member 1 main body is joined directly to the rib plate 5a erected on the joining plate 5 that joins the interrupt plate 2 and the other member 30 with the fastening bolt 6 or the like without being joined directly. In this embodiment, when a compression axial force acts on the steel pipe member 1 and a force M is applied to locally bend the end portion of the steel pipe member 1 due to the overall buckling of the steel pipe member 1, The acting force exerts a bending resistance force by being transmitted to the main body of the steel pipe member 1 through the portion of the interrupting plate 2 inside the steel pipe member 1 to which the stiffening plate 4 is joined by welding or the like. Bending as shown in FIG. 8B can be avoided. Further, the stiffening effect of the joining plate 5 due to the standing of the rib plate 5a is also exhibited, and the thickness of the joining plate 5 itself can be reduced. Furthermore, since the cover plate 3 can be omitted, it is suitable for the case where it is difficult to provide the cover plate 3 such as hot dip galvanization.

図５は本発明の鋼管部材の端部接合構造の第５実施例を示す側面図およびそのＢ−Ｂ断面図である。本実施例のものは、前記第４実施例において、割込み板２と他部材３０とを接合する接合板５に立設されたリブ板５ａの長さを、割込み板２の先端２ａまでとして、他部材３０の面外剛性を高めるために補剛リブ３０ａ、３０ａを立設形成したものである。この場合、前記図２の実施例２のものと同様に、接合部の端部の曲げ変形は、リブ板５ａの先端付近の接合板５、５（割込み板２の先端２ａ付近）で発生するが、鋼管部材１の端部接合部では発生しないので、図８（Ｂ）に示すような部材全体がＺ形に変形することはなく、鋼管部材１は圧縮耐力を発揮し得る。また、スペースに制約がある場合等に対応させてリブ板５ａの長さを短くせざるを得ない場合にも対応できる。   FIG. 5 is a side view showing a fifth embodiment of the end joint structure for steel pipe members according to the present invention and a sectional view taken along the line BB. In the fourth embodiment, the length of the rib plate 5a erected on the joining plate 5 that joins the interrupt plate 2 and the other member 30 in the fourth embodiment is as far as the tip 2a of the interrupt plate 2. In order to increase the out-of-plane rigidity of the other member 30, the stiffening ribs 30a and 30a are formed upright. In this case, as in the second embodiment of FIG. 2, the bending deformation at the end of the joint occurs at the joint plates 5 and 5 near the tip of the rib plate 5a (near the tip 2a of the interrupt plate 2). However, since it does not occur at the end joint portion of the steel pipe member 1, the entire member as shown in FIG. 8 (B) is not deformed into a Z shape, and the steel pipe member 1 can exhibit compression strength. In addition, it is possible to cope with a case where the length of the rib plate 5a has to be shortened corresponding to a case where there is a space limitation.

図６は本発明の鋼管部材の端部接合構造の第６実施例を示す側面図およびそのＢ−Ｂ断面図である。本実施例のものは、前記第５実施例のリブ板５ａを有する接合板５に代えて、平板状の接合板５を採用したもので、鋼管部材１の端部の内外部に連続するように割込み板２の少なくとも一方の面（あるいは両面）に直交する（軸方向に）補剛板４を立設し、かつ該補剛板４は、鋼管部材１本体とは直接接合されることなく、かつ前記割込み板２と他部材３０とを接合する接合板５とは取り合うことなく、直接割込み板２に溶接等により接合したものである。補剛板４の長さは割込み２の先端２ａまでとして、他部材３０の面外剛性を高めるために縁部に補剛リブ３０ａ、３０ａを立設したものである。接合板５には、リブ板５ａを立設しない代わりに板厚を厚くするとともに、補剛板４と割込み板２とが交差する溶接部との干渉を回避するために切込み（隙間）５ｂを形成した。かくして、接合部の端部の曲げ回転力は、リブ板５ａのない部分の接合板５、５の位置（割込み板２の先端２ａ付近）で発生するが、鋼管部材１の端部接合部では発生しないので、図８（Ｂ）に示すような部材全体がＺ形に変形することはないので、鋼管部材１は圧縮耐力を発揮し得る。   FIG. 6 is a side view and a BB cross-sectional view showing a sixth embodiment of the end joint structure for steel pipe members of the present invention. The thing of a present Example replaces with the joining board 5 which has the rib board 5a of the said 5th Example, and employ | adopted the flat joining board 5 so that it may continue to the inside and outside of the edge part of the steel pipe member 1. A stiffening plate 4 perpendicular to (in the axial direction) perpendicular to at least one surface (or both surfaces) of the interrupt plate 2 is provided, and the stiffening plate 4 is not directly joined to the main body of the steel pipe member 1. In addition, the interrupting plate 2 and the other member 30 are joined directly to the interrupting plate 2 by welding or the like without joining the joining plate 5. The length of the stiffening plate 4 is up to the tip 2a of the interrupt 2, and stiffening ribs 30a and 30a are erected on the edge to increase the out-of-plane rigidity of the other member 30. The joining plate 5 has a notch (gap) 5b in order to increase the plate thickness instead of standing up the rib plate 5a and to avoid interference with the welded portion where the stiffening plate 4 and the interrupt plate 2 intersect. Formed. Thus, the bending rotational force at the end of the joint is generated at the position of the joint plates 5 and 5 where the rib plate 5a is not present (near the tip 2a of the interrupt plate 2), but at the end joint of the steel pipe member 1 Since it does not occur, the entire member as shown in FIG. 8B is not deformed into a Z shape, so that the steel pipe member 1 can exhibit compression strength.

図７は本発明の鋼管部材の端部接合構造の第７実施例を示す側面図およびそのＢ−Ｂ断面図である。前記実施例４のものと同様に、鋼管部材１の端部に軸方向の切込み１ａを形成し、該切込み１ａに１枚の割込み板２の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、鋼管部材１の端部の内外部に連続するように割込み板２の少なくとも一方の面（片面あるいは両面）に直交する補剛板４を溶接等により立設し、かつ該補剛板４は、鋼管部材１本体とは直接接合されることなく、前記割込み板２と前記他部材３０とを接合する接合板５に立設したリブ板５ａに、締結ボルト６等により接合したものであるが、本実施例では、前記実施例１〜３のもののように、鋼管部材１の端面の開口部を塞ぐための蓋板３を設けたものである。その蓋板３に直交貫通させて補剛板４を接合するとともに、割込み板２に直交して接合される。つまり、蓋板３と割込み板２および補剛板４とが一体化される。   FIG. 7 is a side view showing a seventh embodiment of the end joint structure for steel pipe members according to the present invention and a sectional view taken along the line BB. As in the case of the fourth embodiment, an axial cut 1a is formed at the end of the steel pipe member 1, and the end of one interrupt plate 2 is inserted into the cut 1a and joined by welding or the like. In this end joint structure, a stiffening plate 4 perpendicular to at least one surface (one surface or both surfaces) of the interrupt plate 2 is erected by welding or the like so as to be continuous with the inside and outside of the end portion of the steel pipe member 1, and The stiffening plate 4 is not directly joined to the main body of the steel pipe member 1 but is attached to the rib plate 5a erected on the joining plate 5 for joining the interrupt plate 2 and the other member 30 by fastening bolts 6 or the like. In the present embodiment, a lid plate 3 for closing the opening of the end surface of the steel pipe member 1 is provided as in the first to third embodiments. The stiffening plate 4 is joined to the lid plate 3 so as to pass through at right angles, and is joined to the interrupt plate 2 at right angles. That is, the cover plate 3, the interrupt plate 2, and the stiffening plate 4 are integrated.

したがって、蓋板３と割込み板２および補剛板４とを一体化するためには、割込み板２の片面あるいは両面に直交して半円弧状の（鋼管部材１が円形断面の場合）蓋板３が立設接合され、該蓋板３には前記補剛板４を受け入れるためのスリットが形成される。該スリットに補剛板４を挿入して蓋板３と補剛板４とを溶接等により接合する。かくして、鋼管部材に圧縮軸力が作用して、全体座屈に伴って部材端部を局部的に曲げようとする力Ｍが補剛板に作用しても、溶接等で接合された鋼管部材１の内部の割込み板２の部分を介すると同時に、蓋板３をも介して鋼管部材１の本体に伝達されるので、高い曲げ抵抗が発揮される。かくして、鋼管部材１の端部接合部の曲げ力の鋼管部材１本体への伝達が確実かつ滑らかになされて、１枚の割込み板形式にも拘らず、従来の十字板形式の場合と同等の曲げ剛性の確保が可能となる。   Therefore, in order to integrate the cover plate 3 with the interrupt plate 2 and the stiffening plate 4, the cover plate has a semicircular arc shape (when the steel pipe member 1 has a circular cross section) perpendicular to one or both surfaces of the interrupt plate 2. 3 is erected and a slit for receiving the stiffening plate 4 is formed in the lid plate 3. The stiffening plate 4 is inserted into the slit, and the lid plate 3 and the stiffening plate 4 are joined by welding or the like. Thus, even if a compressive axial force acts on the steel pipe member and a force M for locally bending the end portion of the member accompanying the overall buckling acts on the stiffening plate, the steel pipe member joined by welding or the like. Since it is transmitted to the main body of the steel pipe member 1 through the cover plate 3 at the same time through the portion of the interrupt plate 2 inside 1, a high bending resistance is exhibited. Thus, the bending force of the end joint portion of the steel pipe member 1 is reliably and smoothly transmitted to the main body of the steel pipe member 1, and is equivalent to the conventional cross board type regardless of the single interruption plate type. It is possible to ensure bending rigidity.

本発明の第８実施例については図示はしないが、前記図５の第５実施例のもの（リブ板５ａの長さが短いもの）に蓋板３を追加したもので、蓋板３を割込み板２および補剛板４に溶接等にて一体化して取り付けることにより、前記図７の第７実施例のものと同様の特性がある。   Although the eighth embodiment of the present invention is not shown, the lid plate 3 is added to the fifth embodiment of FIG. 5 (the rib plate 5a has a short length), and the lid plate 3 is interrupted. By being integrally attached to the plate 2 and the stiffening plate 4 by welding or the like, there are characteristics similar to those of the seventh embodiment of FIG.

本発明の第９実施例については図示はしないが、前記図６の第６実施例のもの（補剛板４の長さが短いもの）に蓋板３を追加したもので、蓋板３を割込み板２および補剛板４に溶接等にて一体化して取り付けることにより、前記図７の第７実施例のものと同様の特性がある。   Although not shown in the ninth embodiment of the present invention, the lid plate 3 is added to that of the sixth embodiment in FIG. 6 (the length of the stiffening plate 4 is short). By being integrally attached to the interruption plate 2 and the stiffening plate 4 by welding or the like, there are characteristics similar to those of the seventh embodiment of FIG.

以上、本発明の実施例について説明してきたが、各部材の形状、形式および材質等については本発明の趣旨の範囲内で適宜のものが採用され得る。例えば、鋼管部材端部の軸方向の一対の切込みは、鋼管部材の直径部位に形成されるのを好適とするが、直径部位から外れることを妨げるものではない。鋼管部材の断面形状についても円形断面の管部材を好適とするが、角形であってもよい。その際は、鋼管部材の端部に接合される蓋板の形状も鋼管部材の断面形状に適合する形状とされる。蓋板にあるいは割込み板に直接接合される補剛板については割込み板の両面に接合されるのを好適とするが、片面の１枚のみでも鋼管部材端部接合部の曲げ剛性向上に対しては相応に有効である。接合板の形状およびそのリブ板の立設形態（接合板の一部を曲折してリブ板を形成したり、接合板にリブ板を溶接等により立設接合してもよい）ならびにその補剛板、割込み板および他部材への接合形態（実施例のように締結ボルトにて締結接合する他、リベットや溶接等による接合も採用され得る）、蓋板を省略した場合の補剛板の鋼管部材の内外部に連続する形態にて挿入される際の補剛板の形状（実施例の補剛板は先端側が幅狭のテーパー状を呈しており、挿入組立て時のガイド機能を有するが、テーパー状でなく鋼管部材内径に適合する形状でもよい）、補剛板が、割込み板と他部材とを接合する接合板と取り合うことがない場合で、直接割込み板に溶接等により接合される場合に、補剛板と割込み板とが交差する溶接接合部を回避するために接合板に形成される切込み（隙間）の形成形態（実施例のように接合板の表裏を通して切込みを形成するものの他、接合板が比較的厚い場合には、接合板の裏面の割込み板側を、溶接部に相当する部分を面取りするようにしてもよい）等については適宜選定できる。また、実施例における諸元等については限定的に解釈してはならない。   As described above, the embodiments of the present invention have been described. However, the shape, type, material, and the like of each member may be appropriately selected within the scope of the gist of the present invention. For example, the pair of notches in the axial direction of the end portion of the steel pipe member is preferably formed in the diameter portion of the steel pipe member, but does not prevent the steel pipe member from being removed from the diameter portion. The cross-sectional shape of the steel pipe member is also preferably a circular cross-section pipe member, but may be square. In that case, the shape of the cover plate joined to the end of the steel pipe member is also adapted to the cross-sectional shape of the steel pipe member. For stiffening plates that are joined directly to the cover plate or to the interrupt plate, it is preferable to be joined to both sides of the interrupt plate. Is reasonably effective. The shape of the joining plate and the standing configuration of the rib plate (a part of the joining plate may be bent to form a rib plate, or the rib plate may be erected and welded to the joining plate) and its stiffening Steel plate of stiffening plate when the cover plate is omitted (joint connection by rivets or welding, etc. in addition to fastening by fastening bolts as in the embodiment) The shape of the stiffening plate when inserted in a continuous form inside and outside the member (the stiffening plate of the embodiment has a tapered shape with a narrow tip, and has a guide function during insertion assembly, When the stiffening plate does not engage with the joining plate that joins the interrupt plate and other members, and is directly joined to the interrupt plate by welding or the like. In addition, a welded joint where the stiffener plate and the interrupt plate intersect is avoided In order to form the cuts (gap) formed in the joining plate (in addition to the case where the notches are formed through the front and back surfaces of the joining plate as in the embodiment, and when the joining plate is relatively thick, the interruption of the back side of the joining plate is performed. The plate side may be chamfered in a portion corresponding to the welded portion) and the like can be selected as appropriate. In addition, specifications and the like in the examples should not be interpreted in a limited manner.

本発明の鋼管部材の端部接合構造は、鋼管部材が柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合されるブレースを構成するものに適用されるのを好適とするが、その他の構造物の鋼管部材とプレート状の他部材に接合される場合にも適用が可能である。   The end joint structure of the steel pipe member of the present invention is preferably applied to a structure in which the steel pipe member constitutes a brace joined to another member such as a gusset plate fixed to a column beam, a truss frame or the like. The present invention can also be applied to the case where the steel pipe member of another structure is joined to the plate-like other member.

１ 鋼管部材
１ａ 切込み
２ 割込み板
２ａ 先端
３ 蓋板
４ 補剛板
５ 接合板
５ａ リブ板
５ｂ 切込み（隙間）
６ 締結ボルト
３０ 他部材（ガセットプレート等）
３０ａ 補剛リブ DESCRIPTION OF SYMBOLS 1 Steel pipe member 1a Cutting 2 Interrupting board 2a Tip 3 Cover plate 4 Stiffening plate 5 Joining plate 5a Rib plate 5b Cutting (gap)
6 Fastening bolts 30 Other members (gusset plates, etc.)
30a Stiffening rib

Claims (5)

ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことを特徴とする鋼管部材の端部接合構造。 A steel pipe member end joining structure for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and an axial cut in the steel pipe member end part In an end joint structure of a steel pipe member in which the end of one interrupt plate is inserted into the cut and joined by welding or the like, the outer surface of the cover plate provided to close the opening of the end face of the steel pipe member An end joint of a steel pipe member characterized in that a stiffening plate erected orthogonally to a rib plate erected on a joint plate for joining the interrupt plate and the other member is joined by a fastening bolt or the like Construction. ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端面の開口部を塞ぐために設けられた蓋板の外面に直交させて立設した補剛板を、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合したことを特徴とする鋼管部材の端部接合構造。 A steel pipe member end joining structure for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and an axial cut in the steel pipe member end part In an end joint structure of a steel pipe member in which the end of one interrupt plate is inserted into the cut and joined by welding or the like, the outer surface of the cover plate provided to close the opening of the end face of the steel pipe member An end joint of a steel pipe member characterized in that a stiffening plate erected perpendicularly to the interrupt plate is joined directly to the interrupt plate by welding or the like without joining the joint plate for joining the interrupt plate and other members. Construction. ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と前記他部材とを接合する接合板に立設したリブ板に、締結ボルト等により接合したことを特徴とする鋼管部材の端部接合構造。 A steel pipe member end joining structure for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and an axial cut in the steel pipe member end part A steel pipe member end joining structure in which the end of one interrupt plate is inserted into the notch and joined by welding or the like, and at least the interrupt plate is continuous with the inside and outside of the steel pipe member end. A stiffening plate orthogonal to one surface is erected, and the stiffening plate is erected on a joining plate that joins the interrupt plate and the other member without being directly joined to the steel pipe member body. A steel pipe member end joining structure characterized by being joined to a rib plate with a fastening bolt or the like. ブレース等を構成する鋼管部材端部を柱梁やトラス枠等に固定されたガセットプレート等の他部材に接合する鋼管部材の端部接合構造であって、前記鋼管部材端部に軸方向の切込みを形成し、該切込みに１枚の割込み板の端部を挿入して溶接等により接合する鋼管部材の端部接合構造において、前記鋼管部材端部の内外部に連続するように割込み板の少なくとも一方の面に直交する補剛板を立設し、かつ該補剛板は、鋼管部材本体とは直接接合されることなく、前記割込み板と他部材とを接合する接合板とは取り合うことなく、直接割込み板に溶接等により接合したことを特徴とする鋼管部材の端部接合構造。 A steel pipe member end joining structure for joining a steel pipe member end part constituting a brace or the like to another member such as a gusset plate fixed to a column beam, a truss frame or the like, and an axial cut in the steel pipe member end part A steel pipe member end joining structure in which the end of one interrupt plate is inserted into the notch and joined by welding or the like, and at least the interrupt plate is continuous with the inside and outside of the steel pipe member end. A stiffening plate perpendicular to one surface is erected, and the stiffening plate is not directly joined to the steel pipe member main body, and is not connected to the joining plate that joins the interruption plate and the other member. A steel pipe member end joining structure characterized by being joined directly to an interrupt plate by welding or the like. 前記鋼管部材端面の開口部を塞ぐための蓋板を設けるとともに、該蓋板を前記割込み板および補剛板に溶接等により一体化して接合したことを特徴とする請求項３または４に記載の鋼管部材の端部接合構造。 The cover plate for closing the opening part of the steel pipe member end surface is provided, and the cover plate is integrally joined to the interrupt plate and the stiffening plate by welding or the like. End joint structure of steel pipe members.
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