JP4728729B2 - High-strength bolt joint construction method and joint structure of large beam and small beam - Google Patents

High-strength bolt joint construction method and joint structure of large beam and small beam Download PDF

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JP4728729B2
JP4728729B2 JP2005217144A JP2005217144A JP4728729B2 JP 4728729 B2 JP4728729 B2 JP 4728729B2 JP 2005217144 A JP2005217144 A JP 2005217144A JP 2005217144 A JP2005217144 A JP 2005217144A JP 4728729 B2 JP4728729 B2 JP 4728729B2
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joint
small
bolt
web
large beam
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JP2007032097A (en
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暢芳 宇野
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Nippon Steel Corp
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本発明は、鉄骨建築物の床部や屋上部などの支持部となる主桁を構成する大梁と小梁の高力ボルト接合に関し、特に、大梁の設置後に大梁間に小梁を大梁と交叉するように配置・位置決めして高力ボルト接合する場合に有効な大梁と小梁の高力ボルト接合施工方法と高力ボルト接合構造に関する。   The present invention relates to a high-strength bolted connection between a large beam and a small beam that constitute a main girder that serves as a support for a floor or rooftop of a steel building, and in particular, after the large beam is installed, the small beam is crossed with the large beam between the large beams. The present invention relates to a high-strength bolt joint construction method and a high-strength bolt joint structure for large beams and small beams, which are effective in arranging and positioning as described above.

鉄骨建築物を構築する場合には、例えば、図１１に示すように、鉄骨柱Ｐ間に大梁１を接合し、隣設したＨ形鋼からなる大梁１間に、この大梁１と交叉する複数のＨ形鋼からなる小梁２を接合して主桁を構成し、この主桁を構成する各梁の上フランジ上に、デッキプレートやデッキプレートとコンクリートによる合成床版を床部材として配設したり、各梁の上フランジにスタッドを設けてコンクリートを打設することにより床部や屋上（屋根）部を形成することが知られている。   When constructing a steel building, for example, as shown in FIG. 11, a large beam 1 is joined between steel columns P, and a plurality of crossing with the large beam 1 is made between adjacent large beams 1 made of H-shaped steel. The main beam is constructed by joining the small beams 2 made of H-shaped steel, and the deck plate and the deck deck and the composite floor slab made of concrete are arranged as floor members on the upper flange of each beam constituting the main beam. In addition, it is known to form a floor portion or a roof (roof) portion by placing a stud on the upper flange of each beam and placing concrete.

このように床部や屋上（屋根）部を形成する大梁１と小梁２の接合構造としては、例えば、
（１）．図１２（ａ）、（ｂ）で示すように、大梁１の上下フランジ１ａ、１ｂとウェブ１ｕ間にボルト孔を有するガセットプレート３を溶接し、この大梁１のガセットプレート３形成部に、小梁２の端部を直交方向から間隙ｅを設けて突き合わせるように配置し、ガセットプレート３と小梁２のウェブ２ｕに、ボルト孔を有する添板１０を当接して高力ボルト５で接合する高力ボルト接合構造。
（２）．図１３（ａ）、（ｂ）で示すように、大梁１の側部に、フランジ１ａ、１ｂの側端からボルト孔を有するボルト接合部３ａを突設したガセットプレート３１を溶接し、この大梁１のガセットプレート３１形成部に小梁２の端部を直交方向から間隙ｅを設けて突き合わせるように配置し、ガセットプレート３１のボルト接合部３ａに、小梁２のウェブ２ｕを当接して高力ボルト５で接合する大梁と小梁の高力ボルト接合構造。
あるいは、（１）〜（２）の接合構造を組み合わせた大梁と小梁の接合構造などが知られている。 As a joining structure of the large beam 1 and the small beam 2 forming the floor part or the roof (roof) part in this way, for example,
(1). As shown in FIGS. 12A and 12B, a gusset plate 3 having a bolt hole is welded between the upper and lower flanges 1a and 1b of the large beam 1 and the web 1u, and the gusset plate 3 forming portion of the large beam 1 is small. The ends of the beams 2 are arranged so as to face each other with a gap e from the orthogonal direction, and the accessory plate 10 having a bolt hole is brought into contact with the gusset plate 3 and the web 2 u of the small beam 2 and joined with the high strength bolt 5. High-strength bolt joint structure.
(2). FIG. 13 (a), the as shown in (b), on the side of the girder 1, welded flanges 1a, the gusset plates 3 1 projecting from the bolt joints 3a having a bolt hole from the side end 1b, the this place the end of the beams 2 from the orthogonal direction to abut be a clearance e gusset plates 3 1 forming part of the girder 1, the bolt joints 3a of the gusset plate 3 1, a small beam 2 web 2u A high-strength bolt joint structure consisting of a large beam and a small beam that are in contact and joined with a high-strength bolt 5.
Or the joining structure of a big beam and a small beam which combined the joining structure of (1)-(2) is known.

しかし、上記（１）〜（２）の各接合構造では、いずれも大梁１にガセットプレート３を溶接する必要があり、ガセットプレートの加工、溶接施工負担が大きく、コスト高になるという問題がある。加えて、
（１）の接合構造では、大梁１を設置した後に小梁２を、例えば上方から大梁１と直交するように垂直に吊り下げて接合する場合では、添板１０が大梁１と小梁２の上フランジと干渉するため、大梁１と小梁２の位置合わせ後に添板１０を当接・位置合わせしてからボルト接合を開始する必要があり、接合の施工時間が長くなるという問題もある。
（２）の接合構造では、大梁１を設置した後に小梁２を上方から大梁１と直交するように、垂直に吊り下げて接合する場合では、大梁１のガセットプレート３と小梁２の上フランジ２ａが干渉しないように小梁２の下フランジ２ｂを接合部で切り欠く必要があり、小梁２の端部加工の負担増があるなどの問題もある。 However, in each of the joint structures (1) to (2), it is necessary to weld the gusset plate 3 to the girder 1, and there is a problem that the processing and welding work of the gusset plate is large and the cost is high. . in addition,
In the joining structure of (1), when the small beam 2 is vertically suspended so as to be orthogonal to the large beam 1 from above after the large beam 1 is installed, the accessory plate 10 is formed of the large beam 1 and the small beam 2. In order to interfere with the upper flange, it is necessary to start the bolt joining after the abutting plate 10 is brought into contact with and aligned after the alignment of the large beam 1 and the small beam 2, and there is a problem that the construction time for the bonding becomes long.
In the joint structure of (2), when the small beam 2 is vertically suspended so as to be perpendicular to the large beam 1 after the large beam 1 is installed, the gusset plate 3 of the large beam 1 and the small beam 2 are There is a problem that the lower flange 2b of the beam 2 needs to be cut out at the joint so that the flange 2a does not interfere, and there is an increased burden of processing the end of the beam 2.

他の大梁と小梁のボルト接合構造として、例えば特許文献１には、大梁にボルト接合部を有するガセットプレートとガイド板を設けて、このガイド板によって、端部で下フランジ部を切り欠いた小梁ウェブの位置決めを容易にし、この小梁ウェブを大梁のガセットプレートまたはガイド板とボルト接合するボルト接合構造が開示されている。
また、特許文献２には、小梁に高力ボルト接合部になるガセットプレートと、スチフナプレートを設けて、大梁のガセットプレートを高力ボルトにより剛接合して、接合構造の強度と剛性を有し、運搬も施行（施工）も容易なボルト接合構造が開示されている。
しかし、特許文献１、特許文献２のボルト接合構造では、いずれも上記（１）〜（２）と同様、大梁にガセットプレートを溶接するものであるため、上記（１）〜（２）と同様の問題があり、特許文献１のボルト接合構造では、さらにガイド板を併設する必要があるため、加工、施工負担が増加するという問題がある。 As another bolt connection structure of a large beam and a small beam, for example, in Patent Document 1, a gusset plate having a bolt connection portion and a guide plate are provided on the large beam, and the lower flange portion is cut off at the end by the guide plate. A bolted structure is disclosed that facilitates positioning of the beam beam and bolts the beam beam to a gusset plate or guide plate of the beam.
Further, in Patent Document 2, a gusset plate that becomes a high-strength bolt joint portion and a stiffener plate are provided on a small beam, and the gusset plate of a large beam is rigidly joined with a high-strength bolt to have the strength and rigidity of the joint structure. In addition, a bolt joint structure that is easy to transport and implement (construct) is disclosed.
However, in the bolted joint structures of Patent Document 1 and Patent Document 2, both are the same as (1) to (2) above, because the gusset plate is welded to the girder as in the above (1) to (2). In the bolted joint structure of Patent Document 1, it is necessary to additionally provide a guide plate, which increases the processing and construction burden.

また、特許文献２のボルト接合構造では、大梁１を設置した後に小梁を上方から大梁と直交するように吊り下げて接合する場合では、大梁のガセットプレートが小梁の上フランジと干渉し、小梁のガセットプレートが大梁の上フランジと干渉するため、他の施工方法（手順）を選択する必要があり施工方法（手順）の選択幅が狭い。この特許文献２のボルト接合構造で、大梁の上フランジと小梁の上下フランジを接合部で切り欠くことにより、前記の干渉を回避して大梁１を設置した後に小梁３を上方から吊り下げて接合することは可能であるが、大梁と小梁の切欠加工の負担増があるなどの問題もある。
特許文献３には、従来例として、大梁のウェブにアングルを取り付け、これに小梁をボルトで固定することが開示されている。
しかし、この例では大梁を設置した後に小梁を上方から大梁と直交するように吊り下げて接合する場合では、大梁に取り付けたアングルが小梁の下フランジと干渉するため、小梁を、下フランジがアングルと干渉しない、接合部から若干離れた位置に吊り下げてから横移動し、そのウェブをアングルに当接位置合わせして接合する必要がある。また、一対のアングルを用い、アングルを小梁ウェブの両側に接合して接合部強度を高める場合では、例えば一方のアングルと小梁を当接してから、他方のアングルを大梁に取り付け小梁ウェブの他方側に当接してボルト接合する必要があり、接合施工時間が長くなるという問題がある。
また、特許文献４には、大梁と小梁の接合にＬ字型の小梁取付用金具を用いてボルト接合するものがあるが、本願のようにＬ型の接合金物の１つのボルト孔を長径にして、接合金物を回動しながら大梁に接合し、または、この接合金物の大梁接合側と小梁接合側のボルト孔を偏心させるなどして大梁に対する圧縮力作用領域を広くしたものについて開示はない。
特開２００４−２７８２１０号公報 特開２００２−２８５６４２号公報 特開平１０−１３１２８９号公報 特開平５−２５８７６号公報 Further, in the bolted joint structure of Patent Document 2, when the small beam is hung from above to be orthogonal to the large beam after the large beam 1 is installed, the gusset plate of the large beam interferes with the upper flange of the small beam, Since the gusset plate of the small beam interferes with the upper flange of the large beam, it is necessary to select another construction method (procedure), and the selection range of the construction method (procedure) is narrow. In this bolt joint structure of Patent Document 2, the upper beam of the large beam and the upper and lower flanges of the small beam are notched at the joint, so that the interference is avoided and the small beam 3 is suspended from above after the large beam 1 is installed. Can be joined together, but there are also problems such as the increased burden of notching the large and small beams.
Patent Document 3 discloses, as a conventional example, attaching an angle to a large beam web and fixing the small beam to the web with a bolt.
However, in this example, when installing the girder after hanging it so that it is perpendicular to the girder from above, the angle attached to the girder interferes with the lower flange of the girder. The flange needs to be hung at a position slightly apart from the joint so that the flange does not interfere with the angle, and then moved laterally. In addition, when using a pair of angles and joining the angles to both sides of the small beam web to increase the joint strength, for example, one angle and the small beam are contacted, and then the other angle is attached to the large beam. There is a problem that it is necessary to abut on the other side of the wire and to perform the bolted joint, and the joint construction time becomes long.
Further, in Patent Document 4, there is one in which a large beam and a small beam are joined with bolts using an L-shaped fitting for attaching a small beam, but as in the present application, one bolt hole of an L-shaped joint hardware is provided. With a long diameter, the joint hardware is rotated and joined to the large beam, or the bolt hole on the large beam joint side and the small beam joint side of the joint hardware is decentered to widen the area where the compressive force acts on the large beam. There is no disclosure.
JP 2004-278210 A JP 2002-285642 A JP-A-10-131289 Japanese Patent Application Laid-Open No. 5-25876

本発明は、鉄骨建築物の床部や屋上部の支持部となる主桁を構成する大梁と小梁の高力ボルト摩擦接合構造において、大梁間に、小梁を吊り下げまたは吊り上げて大梁と交叉するように配置・位置決めし、接合金物と高力ボルトを介して接合する場合に、大梁と小梁を円滑に且つ容易に接合可能で、接合部性能を安定確保でき、ガセットプレート加工・溶接接合を排除して、材料・加工コスト、施工コスト負担を軽減できる、大梁と小梁の高力ボルト接合施工方法および接合構造を提供するものである。   The present invention relates to a high-strength bolt friction joint structure of a large beam and a small beam that constitute a main girder that serves as a support part for a floor or a roof of a steel structure, and the small beam is suspended or lifted between the large beams. When arranging and positioning so as to cross each other and joining them with joint hardware and high-strength bolts, it is possible to smoothly and easily join large beams and small beams, ensuring stable joint performance, gusset plate processing and welding The present invention provides a high-strength bolt joining method and joining structure for large beams and small beams, which can reduce the material / processing cost and construction cost burden by eliminating the joining.

本発明は、上記課題を解決するために、以下の（１）〜（６）の構成を要旨とするものである。
（１） 大梁間に小梁を交叉するように配置し、大梁ウェブと小梁ウェブとのボルト接合部を有する接合金物を介して高力ボルト接合する大梁と小梁の高力ボルト接合施工方法であって、接合金物の小梁接合部のボルト孔の少なくとも１個を、大梁接合部方向に長径を有する長孔のボルト孔とし、１個の長孔のボルト孔に挿通したボルトで小梁接合部を小梁ウェブに回動および移動可能に仮締結し、ボルトを軸に回動させて接合金物を小梁側に退避させた状態の小梁を、大梁間に配置し、大梁と小梁のウェブ上面を位置合わせし、退避状態にある接合金物を水平位置まで回動及び移動し、大梁接合部を大梁ウェブに当接して高力ボルトで締結し、仮締結しておいた小梁接合部と小梁ウェブを本締結することを特徴とする、大梁と小梁の高力ボルト接合施工方法。
（２） 大梁間に小梁を大梁と交叉するように配置し、大梁のウェブと小梁のウェブとのボルト接合部を有する接合金物を介して高力ボルト接合した大梁と小梁の高力ボルト接合構造であって、接合金物の小梁接合部のボルト孔の少なくとも１個が、大梁接合部方向に長径を有する長孔のボルト孔で、接合金物の小梁接合部の上端面と小梁の上フランジの下面との間に、接合金物が１個の長孔のボルト孔に挿通したボルトを軸に垂直位置から水平位置に至る回動過程で小梁の上フランジの下面に干渉しないように干渉回避空間を形成したことを特徴とする大梁と小梁の高力ボルト接合構造で、基本的には、（１）の大梁と小梁の高力ボルト接合施工方法によって得るものである。
（３） （２）において、大梁のウェブ両側の相対する位置に、接合金物を介して小梁が高力ボルト接合されており、大梁のウェブ両側の相対する位置に当接された接合金物の大梁接合部が、大梁のウェブに少なくとも１本の高力ボルトで同時に締結されていることを特徴とする大梁と小梁の高力ボルト接合構造。
（４） （２）または（３）において、大梁のウェブに接合され水平位置にある接合金物の大梁接合部のボルト孔が、小梁接合部の長孔ボルト孔の位置より上方側に位置し、小梁から大梁のウェブに対する曲げモーメントによる圧縮力作用領域を広げることを特徴とする大梁と小梁の高力ボルト接合構造。
（５） （２）〜（４）のいずれかにおいて、接合金物の小梁接合部の幅を、長孔のボルト孔より後端側から大梁接合部まで傾斜的に大きくして、大梁のウェブに接合され水平位置にある接合金物の大梁接合部のボルト孔の下部側領域を上側領域より大きくして、小梁から大梁のウェブに対する曲げモーメントによる圧縮力作用領域域を広げることを特徴とする大梁と小梁の高力ボルト接合構造。
（６） （２）〜（５）のいずれかにおいて、接合金物の下面と小梁端面と大梁の下フランジ間に形成された空間に各種ケーブルやホースを収納するダクトを配設したことを特徴とする大梁と小梁の高力ボルト接合構造。 In order to solve the above-described problems, the present invention has the following configurations (1) to (6).
(1) A high-strength bolt joint construction method for a large beam and a small beam, in which the small beam is arranged so as to cross between the large beams, and the high-strength bolt is joined via a joint hardware having a bolt joint between the large beam web and the small beam web. In this case, at least one of the bolt holes in the small beam joint portion of the joint hardware is a long bolt hole having a long diameter in the direction of the large beam joint portion, and the small beam is formed by a bolt inserted into one long hole bolt hole. Temporarily fasten the joint to the small beam web so that it can be rotated and moved, and rotate the bolt around the shaft to retract the joint metal to the small beam side. Align the upper surface of the web of the beam, rotate and move the joint hardware in the retracted state to the horizontal position, abut the large beam joint to the large beam web, fasten with high strength bolts, and temporarily tighten the small beam A high-strength bolt for a large beam and a small beam, characterized in that the joint and the small beam web are finally fastened. G joining construction method.
(2) The high strength of the large beam and the small beam, which are arranged so that the small beam intersects the large beam between the large beams and is joined by a high-strength bolt via a joint hardware having a bolt joint between the large beam web and the small beam web. It is a bolt joint structure, and at least one of the bolt holes in the small beam joint portion of the joint hardware is a long bolt hole having a long diameter in the direction of the large beam joint portion, and is small with the upper end surface of the small beam joint portion of the joint hardware. Between the lower surface of the upper flange of the beam, the joint metal does not interfere with the lower surface of the upper flange of the small beam in the turning process from the vertical position to the horizontal position with the bolt inserted into the bolt hole of one long hole as the axis. The high-strength bolt joint structure of a large beam and a small beam, characterized in that an interference avoidance space is formed as described above, which is basically obtained by the high-strength bolt joint construction method of a large beam and a small beam in (1). .
(3) In (2), the small beam is high-strength bolted to the opposite positions on both sides of the web of the large beam via the joint hardware, and the joint hardware in contact with the opposite positions on both sides of the web of the large beam. A high-strength bolt joint structure of a large beam and a small beam, wherein the large beam joint portion is simultaneously fastened to the web of the large beam with at least one high-strength bolt.
(4) In (2) or (3), the bolt hole of the large beam joint portion of the joint hardware that is joined to the web of the big beam in a horizontal position is positioned above the position of the long hole bolt hole of the small beam joint portion. A high-strength bolt joint structure between a large beam and a small beam, which expands the area where the compressive force acts on the web of the large beam from the small beam.
(5) In any one of (2) to (4), the width of the small beam joint portion of the metal joint is increased in a slanting manner from the rear end side to the large beam joint portion from the bolt hole of the long hole, and the web of the large beam The lower side region of the bolt hole of the large beam joint of the joint metal that is joined to the horizontal position is made larger than the upper region, and the region where the compressive force acting by the bending moment from the small beam to the web of the large beam is expanded. High-strength bolt joint structure of large and small beams.
(6) In any one of (2) to (5), a duct for storing various cables and hoses is disposed in a space formed between the lower surface of the joint metal, the end surface of the small beam, and the lower flange of the large beam. A high-strength bolt joint structure of large and small beams.

本発明では、建込み後の柱に大梁を設置（接合）後に、予め接合金物を小梁側に退避させた状態で仮締結しているため、小梁を大梁間に大梁と交叉するように垂直に吊り下げまたは吊り上げて配置する際に、接合金物と大梁との干渉を容易に回避できるので、大梁間に小梁を容易にかつ円滑に配置でき、退避位置にある接合金物を回動・移動して大梁ウェブに容易に当接・位置決めし高力ボルト接合することができ、接合施工時間を短縮することができる。
本発明では、基本形がＬ型の接合金物を必要とするが、これらは例えば成形材（溝形鋼や山形鋼などの形鋼を含む）からの切り出しやボルト孔（長孔と通常孔）の孔明けを主体とする比較的軽微な量産加工で安価に得られるものであり、大梁や小梁にガセットプレートを溶接しない接合構造であり、ガセットプレートの材料・加工・溶接を省略でき、接合施工コストを削減するとともに接合施工時間を短縮することができる。
また、大梁側では高力ボルト引張接合構造とし、大梁と小梁間の引張応力を接合金物経由で高力ボルトを介して伝達するとき、例えば、接合金物における大梁接合部のボルト孔の下側領域を上側領域より大きくすることにより、大梁に対する圧縮力作用領域を広くして、この領域でボルト接合を省略することもできる。
したがって、合理的で現実的な接合部を安価に実現でき、接合部性能を安定確保することができる。特に大梁の両側部の相対する位置に小梁を接合する場合には、これらの効果は顕著である。 In the present invention, after the large beam is installed (joined) on the post-construction column, the joint metal is temporarily tightened in a state where the metal fitting is retracted to the small beam side in advance, so that the small beam crosses the large beam between the large beams. When suspending or lifting vertically, it is possible to easily avoid interference between the joint hardware and the large beam, so that the small beam can be easily and smoothly placed between the large beams, and the joint hardware in the retracted position can be rotated and It is possible to move and easily abut and position the large beam web to join the high-strength bolt, thereby shortening the time required for joining.
In the present invention, an L-shaped joint metal is required, but these are, for example, cut out from a molding material (including shaped steel such as channel steel and angle steel) and bolt holes (long holes and normal holes). It can be obtained at a low cost by relatively light mass production processing mainly for drilling, and it is a joint structure that does not weld gusset plates to large beams or small beams. It is possible to reduce the cost and the joint construction time.
In addition, a high-strength bolt tension joint structure is used on the large beam side, and when the tensile stress between the large beam and the small beam is transmitted through the high-strength bolt via the joint hardware, for example, the lower region of the bolt hole in the joint section of the large beam Is made larger than the upper region, the compressive force acting region for the large beam can be widened, and the bolt joint can be omitted in this region.
Therefore, a reasonable and realistic joint can be realized at low cost, and the joint performance can be secured stably. In particular, when the small beams are joined at opposite positions on both sides of the large beam, these effects are remarkable.

本発明は、基本的には、例えばＨ形鋼梁や溝形鋼梁などの鋼製梁を対象としてこの鋼製梁を交叉（本発明では直交を含み、以下「交叉」と総称する。）配置して、交叉配置した大梁と小梁との交叉角度に応じた接合面を形成する大梁接合部と小梁接合部を有する、基本形がＬ型の接合金物（以下「接合金物」という。）と高力ボルトを用いて接合する場合に適用するものである。
本発明では接合される側の鋼製梁を「大梁」、この大梁に接合する側の鋼製梁を「小梁」と称する。
本発明は、より具体的には、例えば、鉄骨建築物の床部や屋上部などを構築する場合に、大梁を、建て込み後の複数対の鉄骨柱間に設置（接合）して、隣合う大梁間に、小梁を吊り下げまたは吊り上げて大梁と交叉するように配置・位置決めし、接合金物を介して高力ボルト接合する大梁と小梁の高力ボルト接合施工方法と接合構造として適用するものである。 In the present invention, basically, for example, a steel beam such as an H-shaped steel beam or a groove-shaped steel beam is crossed (in the present invention, including a right angle and hereinafter collectively referred to as “crossover”). An L-shaped joint metal fitting (hereinafter referred to as “joint metal fitting”) having a large beam joint portion and a small beam joint portion that are arranged to form a joint surface corresponding to the crossing angle between the cross beam and the cross beam. It is applied when joining with high-strength bolts.
In the present invention, the steel beam to be joined is referred to as a “large beam”, and the steel beam to be joined to the large beam is referred to as a “small beam”.
More specifically, in the present invention, for example, when constructing a floor or a roof of a steel structure, a large beam is installed (joined) between a plurality of pairs of steel columns after being built, and adjacent to each other. Place and position the beam so as to cross or cross the large beam between the matching large beams, and apply it as a high-strength bolt joint construction method and joint structure for large beams and small beams that join high-strength bolts via joint hardware To do.

基本的には、例えば、建て込み後の鉄骨柱間に、大梁（例えばＨ形鋼梁）を設置（接合）した後に、隣合う大梁間に、小梁（例えばＨ形鋼梁）を垂直に吊り下げまたは吊り上げて所定の間隙を設けて交叉するように配置・位置決めする場合において、予め小梁のウェブに接合金物を接合しておくものであり、この接合金物と大梁のフランジとの干渉を回避可能にする、接合金物の回動・移動（退避）機構を用いて、大梁に対する小梁の配置・位置決めを円滑に且つ容易に行うことができ、接合の施工性を向上させるものである。
また、大梁、小梁に、高力ボルト接合のためのガセットプレートを用いないことに加え、大梁、小梁のフランジやウェブに切欠加工を施す必要がないことから、材料・加工コストの低減も可能で、接合施工コストの大幅低減、接合施工時間を大幅に短縮可能にするものである。 Basically, for example, after installing (joining) large beams (for example, H-shaped steel beams) between steel columns after erection, small beams (for example, H-shaped steel beams) are placed vertically between adjacent large beams. In the case of suspending or lifting and arranging and positioning so as to intersect with a predetermined gap, a joining hardware is joined to the web of the beam in advance, and interference between the joining hardware and the flange of the large beam is caused. By using a rotating / moving (retracting) mechanism of the joint hardware that can be avoided, the placement and positioning of the small beam with respect to the large beam can be performed smoothly and easily, and the workability of joining is improved.
In addition to not using gusset plates for high-strength bolts for large beams and small beams, it is not necessary to cut out the flanges and webs of large beams and small beams, reducing material and processing costs. It is possible to significantly reduce the joint construction cost and the joint construction time.

以下に本発明の実施形態例を図に基づき説明する。
［接合構造の実施形態例１］
図１（ａ）、（ｂ）は、本発明の接合施工方法によって、ここではＨ形鋼梁からなる大梁１とＨ形鋼梁からなる小梁２の一方の端部を、一対の接合金物４と高力ボルト５、５ｓを介して接合し得られた大梁１と小梁２の高力ボルト接合構造の基本的な実施形態例１を、接合が完了した状態で部分的に示したものである。
ここでは、小梁２は、上フランジ２ａの上面を大梁１の上フランジ１ａの上面と面一（小梁２は、上フランジ２ａの下面を大梁１の上フランジ１ａの下と面一にする場合もある。）にして、上フランジ２ａの先端と大梁１の上フランジ１ａの側端間に１０ｍｍ前後の間隙ｅを生じるように、大梁１に対して交叉配置（ここでは直交配置につき以下「直交配置」ともいう。）している。
小梁２のウェブ２ｕの両側には、図１（ｂ）に示すように、相対するように配置した一対の接合金物４の小梁接合部４ａを、ここでは１本の高力ボルト５で同時に締結し、この一対の接合金物４の大梁接合部４ｂを、大梁１のウェブ１ｕの上部に、それぞれ１本の高力ボルト５ｓで締結して大梁１と小梁２を接合している。ここでは、接合金物４の大梁接合部４ｂと小梁接合部４ａにおける高力ボルト５、５ｓの軸中心は接合金物４の中心線上に位置している。 Embodiments of the present invention will be described below with reference to the drawings.
[Embodiment Example 1 of Bonding Structure]
1 (a) and 1 (b) show, according to the joining method of the present invention, one end of a large beam 1 made of an H-shaped steel beam and one end of a small beam 2 made of an H-shaped steel beam. 4 shows a basic embodiment example 1 of a high-strength bolt joint structure of a large beam 1 and a small beam 2 obtained by joining through 4 and high-strength bolts 5 and 5s, in a partially completed state. It is.
Here, the small beam 2 has the upper surface of the upper flange 2a flush with the upper surface of the upper flange 1a of the large beam 1 (the small beam 2 has the lower surface of the upper flange 2a flush with the lower surface of the upper flange 1a of the large beam 1). In some cases, the cross-arrangement with respect to the large beam 1 (hereinbelow referred to as “orthogonal arrangement”) is performed so that a gap e of about 10 mm is generated between the tip of the upper flange 2a and the side end of the upper flange 1a of the large beam 1. Also called “orthogonal arrangement”.
On both sides of the web 2u of the small beam 2, as shown in FIG. 1 (b), a small beam joint 4a of a pair of metal fittings 4 arranged so as to face each other is here with one high-strength bolt 5. The large beam 1 and the small beam 2 are joined by fastening the large beam joint 4b of the pair of metal fittings 4 to the upper part of the web 1u of the large beam 1 with one high-strength bolt 5s. Here, the axial centers of the high-strength bolts 5 and 5s in the large beam joint 4b and the small beam joint 4a of the joint metal 4 are located on the center line of the joint metal 4.

接合金物４は、図１（ｃ）に示すように、大梁１のウェブ１ｕとの接合面を形成する大梁接合部４ｂと、大梁１に直交配置する小梁２のウェブ１ｕとの接合面を形成する小梁接合部４ａを有してＬ型に形成されたもので、小梁接合部４ａには、大梁接合部４ｂ方向に高力ボルト５の軸径の１．５〜２．５倍程度の長径を有する長孔のボルト孔４ｏを有し、大梁接合部４ａには標準的なボルト孔４ｓを有するものである。
この接合金物４は、大梁１間に小梁２を直交配置する前に、予め小梁接合部４ａの長孔のボルト孔４ｏに高力ボルト５（仮ボルト使用でも可）を挿通し小梁２のウェブ２ｕに軽度の外力（例えば手動）で回動・移動可能に仮締結して、長孔のボルト孔４ｏの特性によって、高力ボルト５を軸として、ここでは９０度の回動と距離ｄ（小梁接合部４ａが高力ボルト５に仮締結した状態では長孔のボルト孔４ｏ効果で長軸側で移動できる距離）の範囲で移動可能にするものである。 As shown in FIG. 1 (c), the joint metal 4 has a joint surface between the large beam joint portion 4 b that forms the joint surface with the web 1 u of the large beam 1 and the web 1 u of the small beam 2 that is arranged orthogonal to the large beam 1. It has a small beam joint portion 4a to be formed and is formed in an L shape. The small beam joint portion 4a is 1.5 to 2.5 times the shaft diameter of the high strength bolt 5 in the direction of the large beam joint portion 4b. A long bolt hole 4o having a major axis of a certain length is provided and a standard bolt hole 4s is provided at the large beam joint 4a.
Before the small beams 2 are arranged orthogonally between the large beams 1, the bonding hardware 4 is inserted into the long bolt holes 4o of the small beam joints 4a in advance by inserting high strength bolts 5 (temporary bolts may be used). The second web 2u is temporarily fastened so that it can be rotated and moved with a slight external force (for example, manual operation). It is movable within a range of a distance d (a distance that can be moved on the long axis side by the effect of the long bolt hole 4o in a state where the small beam joint 4a is temporarily fastened to the high-strength bolt 5).

これは、小梁２を大梁１間に直交配置するときに、小梁２に仮締結した接合金物４を、大梁１の上フランジ１ａに干渉しないように小梁２側に退避させておき、小梁２を大梁１間に円滑に直交配置した後に、接合金物４を、大梁接合部４ｂを大梁１のウェブ１ｕに当接・接合する水平位置まで回動する過程で、接合金物４の大梁接合部４ａの角部Ａと大梁１のウェブ１ｕと干渉しても接合金物４の回動に支障がないように、接合金物４を小梁２側に距離ｄの範囲で後退移動させて、水平位置まで円滑に回動可能にし、また、水平位置で大梁接合部４ｂの接合面と大梁１のウェブ１ｕ間に隙間がある場合に、接合金物４を大梁１側に距離ｄの範囲で移動させて当接可能にするものである。   This is because when the small beam 2 is arranged orthogonally between the large beams 1, the joint hardware 4 temporarily fastened to the small beam 2 is retracted to the small beam 2 side so as not to interfere with the upper flange 1a of the large beam 1, After the small beam 2 is smoothly arranged perpendicularly between the large beams 1, in the process of rotating the bonding hardware 4 to a horizontal position where the large beam bonding portion 4 b abuts and joins the web 1 u of the large beam 1, the large beams of the bonding hardware 4 are obtained. In order not to interfere with the rotation of the joint hardware 4 even if it interferes with the corner A of the joint 4a and the web 1u of the large beam 1, the joint hardware 4 is moved backward in the range of the distance d to the small beam 2 side, It is possible to smoothly rotate to a horizontal position, and when there is a gap between the joint surface of the large beam joint 4b and the web 1u of the large beam 1 at the horizontal position, the joint hardware 4 is moved to the large beam 1 side within a distance d. It is made to contact | abut.

図２は、小梁１のウェブ２に小梁接合部４ａを高力ボルト５により軽度の外力で回動・移動可能に仮締結した接合金物４を、小梁２側に退避させた状態で、大梁１に所定の間隙ｅを形成して直交配置した状態から、大梁接合部４ｂを大梁１のウェブ１ｕに当接して接合する水平位置まで回動・移動する場合の軌跡例を示したものである。ここでは、一方の接合金物４で代表説明する。
この例では、小梁２側で垂直位置（中心線位置Ｘ）にあり退避状態にある接合金物４を、大梁１との接合位置である水平位置（中心線位置Ｚ）まで回動するが、高力ボルト５の軸心から大梁接合部４ｂの接合面までの距離（回動半径）を最大Ｌに固定した場合、回動途中（中心線位置Ｙ）で大梁接合部４ｂの角部Ａが大梁１のウェブ１ｕに干渉して円滑な回動ができない。
そこで、接合金物４を小梁２側（高力ボルト５の軸方向）に押し付けて距離ｄの範囲内で後退させ、高力ボルト５の軸心から大梁接合部４ｂの接合面までの距離（回動半径）を最小Ｌｓにして回動させることによって接合金物４の大梁接合部４ａの角部Ａと大梁１のウェブ１ｕと干渉しても接合金物４の回動に支障がないようにする。 FIG. 2 shows a state in which the metal joint 4 temporarily fastened to the web 2 of the small beam 1 so that the small beam joint 4a can be rotated and moved with a slight external force by a high strength bolt 5 is retracted to the small beam 2 side. , Showing a trajectory example in the case where the large beam 1 is rotated and moved from a state where a predetermined gap e is formed and arranged orthogonally to a horizontal position where the large beam joint 4b is brought into contact with the web 1u of the large beam 1 and joined. It is. Here, one of the joint hardwares 4 will be described as a representative.
In this example, the joint metal 4 in the vertical position (centerline position X) on the small beam 2 side and in the retracted state is rotated to the horizontal position (centerline position Z) which is the joint position with the large beam 1, When the distance (turning radius) from the axial center of the high-strength bolt 5 to the joining surface of the large beam joint 4b is fixed at the maximum L, the corner A of the large beam joint 4b is in the middle of the rotation (center line position Y). Smooth rotation is not possible due to interference with the web 1 u of the beam 1.
Therefore, the metal joint 4 is pressed against the small beam 2 side (in the axial direction of the high strength bolt 5) and retracted within the range of the distance d, and the distance (from the axial center of the high strength bolt 5 to the joint surface of the large beam joint 4b ( By rotating with a minimum radius Ls, the joint metal 4 is prevented from rotating even if it interferes with the corner A of the large beam joint 4a of the joint metal 4 and the web 1u of the large beam 1. .

接合金物４が接合位置である水平位置（中心線位置Ｚ）に達したときは、高力ボルト５の軸心から大梁接合部４ｂの接合面までの距離（回動半径）は最小Ｌｓになっており、接合金物４の大梁接合部４ｂの接合面が大梁１のウェブ１ｕから離れているため、接合金物４を大梁１側に押し付けて距離ｄ（Ｌ−Ｌｓ）の範囲内で移動（変位）させ、大梁接合部４ｂの接合面を大梁１のウェブ２ｕに当接し接合する。
ここでは、接合金物４の回動と距離ｄの範囲の移動を、分離して行うように説明したが、同時的に行って接合金物４を垂直位置から水平位置まで連続的に回動・移動し位置合わせすることもできる。 When the metal joint 4 reaches the horizontal position (center line position Z), which is the joint position, the distance (turning radius) from the axial center of the high-strength bolt 5 to the joint surface of the large beam joint 4b becomes the minimum Ls. Since the joint surface of the large beam joint 4b of the metal joint 4 is separated from the web 1u of the large beam 1, the joint metal 4 is pressed against the large beam 1 side and moved (displaced) within a range of distance d (L-Ls). ), The joining surface of the large beam joint 4b is brought into contact with and joined to the web 2u of the large beam 1.
Here, the rotation of the metal joint 4 and the movement in the range of the distance d have been described as being performed separately. However, the metal joint 4 is continuously rotated and moved from the vertical position to the horizontal position by performing simultaneously. It can also be aligned.

一方、上記のように接合金物４を、長孔のボルト孔４ｏに挿通した高力ボルト５を軸とし距離（回動半径）を最短Ｌｓにして回動するときに、接合金物４の後端の角部Ｂが小梁２の上フランジの２ａ下面と干渉した場合には接合金物４の回動ができないため、接合金物４を回動させるときの小梁接合部４ａの後端の角部Ｂの位置に応じて、接合が完了した状態での接合金物４の上端と小梁２の上フランジの２ａ下面間に干渉回避空間ａを形成するように考慮する。
この干渉回避空間ａは、接合金物４を長孔のボルト孔４ｏに挿通した高力ボルト５を軸とし距離（回動半径）を最短Ｌｓにして回動するときの高力ボルト５の軸心から角部Ｂまでの距離に応じて決めるものであり、接合金物４を長孔のボルト孔４ｏに挿通した高力ボルト５を軸とし距離（回動半径）を最短Ｌｓにして回動するときに、接合金物４の後端の角部Ｂが小梁２の上フランジの２ａ下面と干渉しない範囲内で、なるべく小さくすることが、安定した接合部を確保するために好ましい。 On the other hand, when the joint metal 4 is rotated with the high-strength bolt 5 inserted through the long bolt hole 4o as an axis and the distance (rotation radius) as short as Ls as described above, the rear end of the joint metal 4 When the corner B of the beam interferes with the lower surface 2a of the upper flange of the small beam 2, the metal joint 4 cannot be rotated. Therefore, the corner of the rear end of the small beam joint 4a when the metal joint 4 is rotated. Depending on the position of B, it is considered that an interference avoidance space a is formed between the upper end of the metal joint 4 in a state where the joining is completed and the lower surface 2a of the upper flange of the small beam 2.
The interference avoidance space a has an axial center of the high-strength bolt 5 when rotating with a high-strength bolt 5 inserted through the joint bolt 4 through the long bolt hole 4o as an axis and a distance (turning radius) as short as Ls. Is determined according to the distance from the corner portion B, and when the joint 4 is rotated with the high-strength bolt 5 inserted through the elongated bolt hole 4o as the axis and the distance (turning radius) as short as Ls. In addition, it is preferable to make the corner B of the rear end of the joint metal 4 as small as possible within a range that does not interfere with the lower surface 2a of the upper flange of the small beam 2 in order to secure a stable joint.

なお、図１（ａ）、（ｂ）に示す大梁１と小梁２の高力ボルト接合構造では、接合金物４を小サイズにし、高力ボルト５、５ｓの本数を少なくしているため、接合強度を安定的に確保するため接合金物４を小梁２のウェブ２ｕの両側の相対する位置に同時に接合するようにしているが、接合金物４を大サイズにし、高力ボルト５、５ｓの本数を多くする場合には、接合金物４を小梁２のウェブ２ｕの片側のみに配置することも考慮できる。
また、接合金物４の大梁接合部４ｂのボルト孔４ｓは標準的なボルト孔にしているが、最終の締結時に位置を、より容易に微調整できるように、長孔のボルト孔にしてもよい。（請求項２および請求項１の実施形態例に相当）。 In the high-strength bolt joint structure of the large beam 1 and the small beam 2 shown in FIGS. 1 (a) and 1 (b), the joining hardware 4 is made small and the number of high-strength bolts 5 and 5s is reduced. In order to secure the joint strength stably, the joint hardware 4 is jointed to the opposite positions on both sides of the web 2u of the small beam 2 at the same time. However, the joint hardware 4 is made large in size, and the high strength bolts 5 and 5s. In the case of increasing the number, it can be considered that the metal joint 4 is arranged only on one side of the web 2u of the small beam 2.
Moreover, although the bolt hole 4s of the large beam joint part 4b of the metal joint 4 is a standard bolt hole, a long bolt hole may be used so that the position can be finely adjusted more easily at the time of final fastening. . (Corresponding to the embodiments of claims 2 and 1).

［接合施工方法の実施形態例］
図１（ａ）、（ｂ）の接合構造を得るための接合施工方法例について、図３（ａ）、（ｂ）、（ｃ）、（ｄ）に基づいてより具体的に説明する。
なお、接合金物４は、小梁２のウェブ２ｕの両側に相対するように配置されるが、ここでは、一側の接合金物４と、例えば鉄骨柱間に接合・設置された一方の大梁１と小梁２の一方の端部の接合部を代表として部分的に示した。
接合金物４は、小梁接合部４ａの長孔のボルト孔４ｏ（高力ボルト５の軸径の１．５〜２．５倍程度）に挿通した高力ボルト５を軸として回動し、距離ｄ（Ｌ−Ｌｓ）程度の範囲内で移動（変位）可能なように、高力ボルト５で仮締結され、軽度の外力（例えば手動）で容易に回動・移動可能である。図中の高力ボルト５は、仮締結した状態の軸部断面で示している。 [Example embodiment of joining method]
An example of a joining method for obtaining the joining structure shown in FIGS. 1A and 1B will be described more specifically based on FIGS. 3A, 3B, 3C, and 3D.
The joint hardware 4 is arranged so as to be opposed to both sides of the web 2u of the small beam 2. Here, the one joint 1 between the joint hardware 4 on one side and the steel column, for example, is installed. And a joint at one end of the beam 2 is shown partially as a representative.
The metal joint 4 rotates around a high-strength bolt 5 inserted through a long bolt hole 4o (about 1.5 to 2.5 times the shaft diameter of the high-strength bolt 5) of the small beam joint 4a, It is temporarily fastened with a high-strength bolt 5 so that it can be moved (displaced) within a range of a distance d (L-Ls), and can be easily rotated and moved with a slight external force (for example, manually). The high-strength bolt 5 in the figure is shown by a shaft section in a temporarily fastened state.

（１） 図３（ａ）は、例えばクレーンを用いて小梁２を大梁１の側部に大梁１と直交するように垂直に吊り下げて、先端と大梁１の上フランジ１ａの側端との間に所定の間隙ｅを生じるように配置する途中の状態を示している。
ここでは、接合金物４を大梁接合部４ｂが下方になる垂直位置で小梁２側に退避状態にした小梁２を、端部と大梁１の側部間に間隙ｅを維持しながら大梁１と直交するように垂直方向に吊り下げて行く。このとき、接合金物４は小梁２側で退避位置にあり、大梁１の上フランジ１ａに干渉することはなく、小梁２を大梁１間に、所定の間隙ｅを形成して接合位置まで円滑に吊り下げて行くことができる。 (1) FIG. 3 (a) shows that, for example, a crane is used to suspend a small beam 2 vertically to the side of the large beam 1 so as to be orthogonal to the large beam 1, and the tip and the side end of the upper flange 1a of the large beam 1 The state in the middle of arrange | positioning so that the predetermined gap | interval e may be produced is shown.
Here, the small beam 2 in which the metal joint 4 is retracted to the small beam 2 side at a vertical position where the large beam bonding portion 4b is located downward is maintained while the gap e is maintained between the end portion and the side portion of the large beam 1. Suspend vertically so as to be orthogonal to the. At this time, the metal fitting 4 is in the retracted position on the small beam 2 side, and does not interfere with the upper flange 1a of the large beam 1, and a predetermined gap e is formed between the large beam 1 and the bonding position. It can be hung smoothly.

（２） 図３（ｂ）は、図３（ａ）の状態から小梁２を、さらに吊り下げて行き大梁１間の所定の位置に配置した状態を示している。この状態では、接合金物４の大梁接合部４ｂの大梁１との接合面が、長孔のボルト孔４ｏに挿通した高力ボルト５の軸中心から最長の距離（回動半径）Ｌの位置にある。
（３） 図３（ｃ）は、図３（ｂ）の状態から、垂直位置（退避位置）にあった接合金物４を押し上げながら、水平位置（接合位置）まで回動・移動させる途中の状態を示している。この過程では、接合金物４の大梁接合部４ｂの大梁１との接合面を、長孔のボルト孔４ｏに挿通した高力ボルト５の軸中心から最長の距離（回動半径）Ｌの位置から、長孔のボルト孔４ｏに挿通した高力ボルト５の軸中心から最短の距離（回動半径）Ｌｓの位置に変化させて回動することにより、接合金物４の大梁接合部４ｂの角部Ａが大梁１のウェブ１ｕと干渉しても接合金物４を支障なく水平位置まで回動させることができる。 (2) FIG. 3 (b) shows a state where the small beam 2 is further suspended from the state of FIG. 3 (a) and arranged at a predetermined position between the large beams 1. In this state, the joint surface of the large beam joint 4b of the joint metal 4 with the large beam 1 is at the position of the longest distance (turning radius) L from the axial center of the high strength bolt 5 inserted through the long bolt hole 4o. is there.
(3) FIG.3 (c) is the state in the middle of rotating and moving from the state of FIG.3 (b) to a horizontal position (joining position), pushing up the metal fitting 4 which existed in the vertical position (retracting position). Is shown. In this process, the joint surface of the joint 4 to the large beam 1 of the large beam joint 4b is from the position of the longest distance (turning radius) L from the axial center of the high strength bolt 5 inserted through the long bolt hole 4o. The corner portion of the large beam joint portion 4b of the joint hardware 4 is rotated by changing to the position of the shortest distance (turning radius) Ls from the axial center of the high-strength bolt 5 inserted through the long bolt hole 4o. Even if A interferes with the web 1 u of the large beam 1, the metal joint 4 can be rotated to the horizontal position without hindrance.

（４） 図３（ｄ）は、図３（ｃ）の状態から、接合金物４を水平位置（接合位置）に位置合わせして、大梁１のウェブ１ｕに大梁接合部４ｂを当接した状態を示している。
接合金物４を図３（ｃ）の状態から、水平位置まで回動したままでは、大梁接合部４ｂの大梁１との接合面は、長孔のボルト孔４ｏに挿通した高力ボルト５の軸中心から最長の距離（回動半径）Ｌの位置にあり、大梁１のウェブ１から距離ｄ（Ｌ−Ｌｓ）程度離れているため、接合金物４を大梁１側に押しつけて大梁接合部４ｂの大梁１との接合面を大梁１のウェブ１ｕに当接し、ボルト孔４ｓを大梁１のボルト孔１ｏに位置合わせする。
図３（ｄ）の状態で、接合金物４の大梁接合部４ｂと大梁１のウェブ１ｕを高力ボルト５ｓで締結し、仮締結してある小梁２のウェブ２ｕと接合金物４の小梁接合部４ａを接合する高力ボルト５を本締結するものである。
このようにして、図１（ａ）、（ｂ）に示すような大梁１と小梁２の高力ボルト接合構造を得ることができる。 (4) FIG. 3 (d) shows a state in which the joint 4 is aligned with the horizontal position (joining position) from the state of FIG. 3 (c), and the large beam joint 4 b is in contact with the web 1 u of the large beam 1. Is shown.
If the metal joint 4 is rotated from the state of FIG. 3 (c) to the horizontal position, the joint surface of the large beam joint 4b with the large beam 1 is the axis of the high strength bolt 5 inserted through the long bolt hole 4o. Since it is located at the position of the longest distance (turning radius) L from the center and is separated from the web 1 of the large beam 1 by a distance d (L-Ls), the metal fitting 4 is pressed against the large beam 1 side to The joint surface with the large beam 1 is brought into contact with the web 1 u of the large beam 1, and the bolt hole 4 s is aligned with the bolt hole 1 o of the large beam 1.
In the state of FIG. 3 (d), the large beam joint 4b of the metal joint 4 and the web 1u of the large beam 1 are fastened with a high-strength bolt 5s, and the web 2u of the small beam 2 and the small beam of the joint metal 4 are temporarily fastened. The high-strength bolt 5 that joins the joint 4a is fastened.
In this manner, a high-strength bolt joint structure of the large beam 1 and the small beam 2 as shown in FIGS. 1 (a) and 1 (b) can be obtained.

なお、ここでは、接合金物４を、長孔のボルト孔４ｏに高力ボルト５を挿通し小梁２のウェブ２に回動・移動可能に仮締結し、この高力ボルト５を本締めして接合を完了するようにしているが、接合金物４を回動・移動して大梁１に接合するまで、高力ボルト５に代えて仮ボルトを用いて、接合金物４の大梁接合部４ｂを大梁１に接合した後に、仮ボルトを取り外して、高力ボルト５に挿し替え、接合金物４の小梁接合部４ａを小梁２のウェブ２ｕに締結するようにしてもよい。また、この例では、小梁２を上方から吊り下げて大梁１間に配置しているが、下方から吊り上げて大梁１間に配置することもできる。（請求項１の実施形態例および請求項２の実施形態例１に相当）。   Here, the metal joint 4 is temporarily fastened to the web 2 of the small beam 2 by inserting the high-strength bolt 5 through the long bolt hole 4o, and the high-strength bolt 5 is finally tightened. However, until the joining hardware 4 is rotated and moved to join the large beam 1, the temporary beam is used instead of the high-strength bolt 5, and the large beam joint 4b of the joining hardware 4 is used. After joining to the large beam 1, the temporary bolt may be removed and replaced with the high-strength bolt 5 to fasten the small beam joint 4 a of the joint hardware 4 to the web 2 u of the small beam 2. In this example, the small beam 2 is suspended from the upper side and disposed between the large beams 1. However, the small beam 2 may be suspended from the lower side and disposed between the large beams 1. (Corresponding to the embodiment of claim 1 and the embodiment 1 of claim 2).

［接合構造の実施形態例２］
図４は、本発明の接合施工方法によって、大梁１と小梁２の一方の端部を、一対の接合金物４１と高力ボルト５、５ｓを介して接合し得られた大梁１と小梁２の高力ボルト接合構造の実施形態例２を部分的に示したものである。
図４（ａ）は、小梁２を高力ボルト５で仮締結した接合金物４１を垂直位置（退避位置）から水平位置（接合位置）に回動・移動して、大梁接合部を大梁１のウェブ１ｕに当接した状態を示し、図４（ｂ）は、接合が完了した状態を示す。なお、図４（ｂ）の側面図は、実施形態例１での図１（ｂ）と同様になるので、ここでは図示を省略する。
この実施形態例２は、基本的には、図３（ａ）〜（ｄ）で示すような接合施工方法で得られるものであり、図４（ａ）に示すように、接合金物４１を長くして小梁接合部４ａに長孔のボルト孔４ｏと標準的なボルト孔４ｓを接合金物４１の中心線上に配置し、図４（ｂ）に示すように、接合金物４１の小梁接合部４ａを小梁２のウェブ２ｕに２本の高力ボルト５、５ｓで締結するものである。接合構造の実施形態例１と共通する部分については説明を一部省略する。 [Second Embodiment of Joining Structure]
FIG. 4 shows the large beam 1 and the small beam 1 obtained by joining one end of the large beam 1 and the small beam 2 through a pair of metal fittings 41 and high strength bolts 5 and 5s by the joining method of the present invention. The embodiment example 2 of the high strength bolt joint structure of the beam 2 is partially shown.
FIGS. 4 (a) girders is rotated, moved to a horizontal position (joint position) from the temporary fastening the joined hardware 4 1 a vertical position joists 2 by high strength bolts 5 (retracted position), the large-Beam FIG. 4 (b) shows a state in which the joining is completed. Since the side view of FIG. 4B is the same as FIG. 1B in the first embodiment, the illustration is omitted here.
The embodiment 2 is basically those obtained by joining construction method as shown in FIG. 3 (a) ~ (d) , as shown in FIG. 4 (a), the bonding hardware 4 1 made longer by placing the bolt holes 4o and standard bolt holes 4s of the elongated hole on the joining hardware 4 1 of the center line in the beams joint 4a, as shown in FIG. 4 (b), bonding hardware 4 1 small The beam joint 4a is fastened to the web 2u of the small beam 2 with two high strength bolts 5 and 5s. A part of the description of the joint structure common to the first embodiment is omitted.

この実施形態例２では、図４（ａ）に示すように、接合金物４１は、小梁接合部４ａの長孔のボルト孔４ｏに挿通して仮締結した高力ボルト５を軸として回動・移動できるようにしており、小梁接合部４ａのボルト孔４ｓについては、接合金物４１を水平位置（接合位置）で大梁接合部４ｂの接合面を大梁１のウェブ１ｕに当接・位置合わせしてから、図４（ｂ）に示すように、大梁接合部４ｂと大梁１のウェブ１ｕとを高力ボルト５ｓで締結し、仮締結してある長孔のボルト孔４ｏに挿通した高力ボルト５を本締結するときに、小梁接合部４ａのボルト孔４ｓに高力ボルト５ｓを挿通して小梁接合部４ａと小梁２のウェブ２ｕを締結するものである。（請求項２の実施形態例に相当）。 In the embodiment 2, as shown in FIG. 4 (a), bonding hardware 4 1, turn the high-strength bolts 5 which temporarily fastened by inserting the bolt holes 4o of the long hole of the small Beam 4a as an axis The bolt hole 4s of the small beam joint 4a is in contact with the web 1u of the large beam 1 at the horizontal position (joining position) and the joint surface of the large beam joint 4b. After the alignment, as shown in FIG. 4 (b), the large beam joint 4b and the web 1u of the large beam 1 are fastened with a high-strength bolt 5s and inserted into a bolt hole 4o having a long hole that is temporarily fastened. When the high-strength bolt 5 is finally fastened, the high-strength bolt 5s is inserted into the bolt hole 4s of the small beam joint 4a to fasten the small beam joint 4a and the web 2u of the small beam 2. (Corresponding to the embodiment of claim 2).

［接合構造の実施形態例３］
図５は、本発明の接合施工方法によって、Ｈ形鋼梁からなる大梁１とＨ形鋼梁からなる小梁２の一方の端部を、一対の接合金物４２と高力ボルト５、５ｓを介して接合し得られた大梁１と小梁２の高力ボルト接合構造の実施形態例３を部分的に示したものである。
図５（ａ）は、小梁２を高力ボルト５で仮締結した接合金物４１を垂直位置（退避位置）から水平位置（接合位置）に回動・移動して、大梁接合部４ｂを大梁１のウェブ１ｕに当接した状態を示し、図５（ｂ）、（ｃ）は、接合が完了した状態を示す。
この実施形態例３は、基本的には、図３（ａ）〜（ｄ）で示すような接合施工方法で得られるものであり、図５（ａ）に示すように、接合金物４２を幅広にして小梁接合部４ａに長孔のボルト孔４ｏと標準的なボルト孔４ｓを同じ垂直線上に配置し、大梁接合部４ｂにも、小梁接合部４ａのボルト孔４ｏ、４ｓと対応して同じ水平線上に２個の標準的なボルト孔４ｓを同じ垂直線上に配置し、図５（ｂ）に示すように、接合金物４２の小梁接合部４ａを小梁２のウェブ２ｕに２本の高力ボルト５、５ｓで締結し、大梁接合部４ｂを大梁１のウェブ１ｕに２本の高力ボルト５ｓで締結する。実施形態例１、実施形態例２と共通する部分については説明を一部省略する。 [Third Embodiment of Joining Structure]
5, the joining construction method of the present invention, one end of the beams 2 consisting girders 1 and H-shaped steel beam consisting of H shaped steel beams, a pair of joining hardware 4 2 and high-strength bolts 5,5s FIG. 9 partially shows an embodiment example 3 of a high-strength bolt joint structure of a large beam 1 and a small beam 2 obtained by joining via a wire.
5 (a) is rotated, moved to a horizontal position (joint position) the joining hardware 4 1 provisionally entered into joists 2 by high strength bolts 5 from a vertical position (retracted position), the girders junction 4b The state which contact | abutted to the web 1u of the big beam 1 is shown, FIG.5 (b), (c) shows the state which joining was completed.
The embodiment 3 is basically those obtained by joining construction method as shown in FIG. 3 (a) ~ (d) , as shown in FIG. 5 (a), the bonding hardware 4 2 A wide bolt hole 4o and a standard bolt hole 4s are arranged on the same vertical line in the small beam joint 4a, and the large beam joint 4b corresponds to the bolt holes 4o and 4s in the small beam joint 4a. to on the same horizontal line are arranged two standard bolt hole 4s on the same vertical line, as shown in FIG. 5 (b), bonding hardware 4 2 sub beams joining portion 4a of the beams 2 web 2u Are fastened with two high strength bolts 5 and 5s, and the large beam joint 4b is fastened to the web 1u of the large beam 1 with two high strength bolts 5s. Description of parts common to the first embodiment and the second embodiment is omitted.

この実施形態例３では、図５（ａ）に示すように、接合金物４２は、長孔のボルト孔４ｏに挿通して仮締結した高力ボルト５を軸として回動と距離ｄの移動ができるようにし、小梁接合部４ａのボルト孔４ｓについては、接合金物４２を水平位置で大梁接合部４ｂの接合面を大梁１のウェブ１ｕに当接・位置合わせしてから、図５（ｂ）に示すように、大梁接合部４ｂと大梁１のウェブ１ｕとを２本の高力ボルト５ｓで締結し、仮締結してある長孔のボルト孔４ｏに挿通した高力ボルト５を本締結するときに、小梁接合部４ａのボルト孔４ｓに高力ボルト５ｓを挿通して小梁２のウェブ２ｕと高力ボルト５で締結するものである。
（請求項２の実施形態例に相当）。 In the embodiment 3, as shown in FIG. 5 (a), bonding hardware 4 2, the movement of rotation and the distance d of the high-strength bolts 5 which temporarily fastened by inserting the bolt holes 4o of the long hole as the shaft to allow for the bolt holes 4s of joists joints 4a, from the combined contact and position the girder 1 the web 1u bonding surfaces of the girders junction 4b bonding hardware 4 2 in horizontal position, FIG. 5 As shown in (b), the high beam bolt 5 inserted through the bolt hole 4o of the long hole which is fastened by fastening the large beam joint portion 4b and the web 1u of the large beam 1 with two high strength bolts 5s. When the main fastening is performed, the high-strength bolt 5s is inserted into the bolt hole 4s of the small beam joint 4a and fastened with the web 2u of the small beam 2 and the high-strength bolt 5.
(Corresponding to the embodiment of claim 2).

［接合構造の実施形態例４］
図６は、本発明の接合施工方法によって、Ｈ形鋼梁からなる大梁１のウェブ１ｕの両側の相対する位置に、それぞれＨ形鋼梁からなる小梁２、２１の一方の端部を、接合構造の実施形態例１と同様の一対の接合金物４と高力ボルト５ｓ、５を介して接合し得られた大梁と小梁の高力ボルト接合構造の実施形態例４を部分的に示したものである。
図６（ａ）は、小梁２、２１に小梁接合部４ａを高力ボルト５で仮締結した接合金物４が水平位置（接合位置）にあって、それぞれ大梁接合部４ｂを大梁１のウェブ１ｕに当接した状態を示しており、図６（ｂ）、（ｃ）、（ｄ）は、大梁１と小梁２の接合が完了した状態を示す。
この実施形態例４では、接合金物４の小梁接合部４ａのボルト孔を長孔のボルト孔４ｏとし、このボルト孔４ｏに挿通し仮締結した高力ボルト５を軸として、接合金物４が垂直位置（退避位置）から水平位置（接合位置）に回動・移動する構造を有するものであり、基本的には、図３（ａ）〜（ｄ）で示すような接合施工方法で得られるものであり、大梁１のウェブ１ｕの両側の相対する位置に配置した小梁２側の接合金物４と小梁２１側の接合金物４の大梁接合部４ｂを大梁１のウェブ１ｕの両側に１本の高力ボルト５ｓで同時に締結する点において、実施形態例１と異なるものである。上記各実施形態例１と共通する部分については説明を一部省略する。 [Embodiment Example 4 of Bonding Structure]
6, by joining the construction method of the present invention, on both sides of the opposite position of the girders 1 of the web 1u consisting of H shaped steel beams, one end of the beams 2, 2 1, each consisting of H shaped steel beams to The embodiment 4 of the high-strength bolt joint structure of the large beam and the small beam obtained by joining the pair of joint hardware 4 and the high-strength bolts 5s, 5 similar to the embodiment 1 of the joint structure is partially shown. It is shown.
6 (a) is, in the provisionally entered into joint hardware 4 is a horizontal position of the beams joint 4a in the beams 2, 2 1 in high-strength bolts 5 (bonding position), girders 1 of each girder joint 4b 6 (b), 6 (c), and 6 (d) show a state in which the joining of the large beam 1 and the small beam 2 is completed.
In this embodiment example 4, the bolt 4 of the small beam joint 4a of the joint metal 4 is a long bolt hole 4o, and the joint metal 4 is centered on a high-strength bolt 5 that is inserted into the bolt hole 4o and temporarily tightened. It has a structure that rotates and moves from a vertical position (retracted position) to a horizontal position (joining position), and is basically obtained by a joining method as shown in FIGS. 3 (a) to 3 (d). The joint beam 4 on the small beam 2 side and the large beam joint portion 4b of the joint metal 4 on the small beam 21 side arranged at opposite positions on both sides of the web 1u of the large beam 1 are arranged on both sides of the web 1u of the large beam 1. This is different from the first embodiment in that it is fastened simultaneously with one high-strength bolt 5s. A part of the description common to the first embodiment will be omitted.

この接合構造の形態例４では、図６（ａ）に示すすように、大梁１のウェブ１ｕの両側の相対する位置に配置した接合金物４は、それぞれ小梁接合部４ａの長孔のボルト孔４ｏに挿通し仮締結した高力ボルト５を軸として回動・移動するようにしており、接合金物４を、水平位置で大梁接合部４ｂの接合面を大梁１のウェブ１ｕに当接・位置合わせし、この状態で、図６（ｂ）〜（ｄ）に示すように、大梁１のウェブ１ｕと、その両側の相対する位置に配置した接合金物４の大梁接合部４ｂを１本の高力ボルト５ｓで同時に締結し、小梁接合部４ａの長孔のボルト孔４ｏに挿通し仮締結してある高力ボルト５を本締結することによって、大梁１と小梁２、２１を接合するものである。
この実施形態例４では、大梁１のウェブ１ｕの相対する位置に小梁２と２１を接合する場合に、大梁１のウェブ１ｕの両側に当接した接合金物４の大梁接合部４ｂと大梁１のウェブ１ｕを高力ボルト５ｓで同時に締結することにより、ボルト本数を少なくしてボルトコストを低減し接合施工コストを低減できる。
なお、図６（ａ）では、大梁１の下フランジ１ｂと、小梁２、２１のウェブ２ｕ端と、接合金物４の下端間に形成される空間をダクトスペース１１として、各種ケーブルやホース、換気や排気ダクトを収納するダクトや排気ダクト８の配設のために有効に利用できる。
（請求項２およびの請求項３、請求項６の実施形態例に相当）。 In Embodiment 4 of this joint structure, as shown in FIG. 6A, the joint hardware 4 arranged at the opposite positions on both sides of the web 1u of the large beam 1 is a long hole bolt of the small beam joint 4a. The high-strength bolt 5 inserted through the hole 4o and temporarily fastened is rotated and moved around the shaft, and the joint metal 4 is brought into contact with the web 1u of the large beam 1 with the joint surface of the large beam joint 4b in a horizontal position. In this state, as shown in FIGS. 6 (b) to 6 (d), the web 1 u of the large beam 1 and the large beam joint portion 4 b of the joint hardware 4 arranged at opposite positions on both sides of the web 1 u concluded simultaneously high strength bolts 5s, by inserting and for the fastening of the high-strength bolts 5 which are temporarily fastened to the bolt holes 4o of the long hole of the small beam 4a, the girder 1 and the beams 2, 2 1 It is what is joined.
In the exemplary embodiment 4, when bonding the joists 2 and 2 1 position opposing web 1u of girders 1, girders junction 4b and girders of the joint hardware 4 in contact with the opposite sides of the girder 1 web 1u By simultaneously fastening one web 1u with high-strength bolts 5s, the number of bolts can be reduced to reduce the bolt cost and the joint construction cost.
In FIG. 6A, the space formed between the lower flange 1 b of the large beam 1 , the web 2 u end of the small beams 2, 21, and the lower end of the joint hardware 4 is defined as a duct space 11, and various cables and hoses are used. It can be effectively used for ventilation and the arrangement of the duct for housing the exhaust duct and the exhaust duct 8.
(Corresponding to the embodiments of claims 2 and 3 and claim 6).

［接合構造の形態例５］
図７は、本発明の接合施工方法によって、Ｈ形鋼梁からなる大梁１のウェブ１ｕの両側の相対する位置に、せいの異なるＨ形鋼梁からなる小梁２と小梁２３の一方の端部を、同じＬ型であるが幅の異なる接合金物４、４３と高力ボルト５、５ｓを介して同時的に接合し得られる大梁と小梁の高力ボルト接合構造の実施形態例５を部分的に示したものである。
図７（ａ）は、大梁接合部４ｂを２本の高力ボルト５ｓで大梁１のウェブ１ｕに接合小梁接合部４ａを長孔のボルト孔４ｏに挿通した高力ボルト５で小梁２のウェブ２ｕに仮締結した接合金物４と、小梁接合部４ａを長孔のボルト孔４ｏに挿通した高力ボルト５で小梁２３のウェブ２ｕに仮締結した接合金物４３が、水平位置（接合位置）にあって、それぞれ大梁接合部４ｂを大梁１のウェブ１ｕに当接した状態を示しており、図６（ｂ）、（ｃ）、（ｄ）は、大梁１のウェブ１ｕの両側に小梁２と小梁２３の接合が完了した状態を示す。
この実施形態例５は、接合金物４、４３の小梁接合部４ａに長孔のボルト孔４ｏを設け、このボルト孔４ｏに挿通・仮締結した高力ボルト５を軸として、接合金物４、４３を垂直位置（退避位置）から水平位置（接合位置）に回動・移動して大梁１と小梁２、２３を接合する構造であり、基本的には、図３（ａ）〜（ｄ）で示すような接合施工方法で得られるものである。
上記各実施形態例と共通する部分については説明を一部省略する。 [Example 5 of Bonding Structure]
7, the joining construction method of the present invention, on both sides of the opposite position of the girders 1 of the web 1u consisting of H shaped steel beams, one of the different H consisting shaped steel beams to the beams 2 and the beams 2 3 Seiji of the end portion, an embodiment of the high-strength bolted connection structure of girders and joists are the same L-shaped to be obtained simultaneously bonded via different joining fittings 4,4 3 and high-strength bolts 5,5s width Example 5 is shown partially.
FIG. 7 (a) shows that the large beam joint 4b is joined to the web 1u of the large beam 1 with two high strength bolts 5s and the small beam 2 is joined with the high strength bolt 5 in which the small beam joint 4a is inserted into the long bolt hole 4o. the bonding hardware 4 that temporarily fastened to the web 2u, bonding hardware 4 3 provisionally fastened to the joists 2 3 web 2u in high-strength bolts 5 inserted through a small joints 4a the bolt hole 4o of the elongated hole, horizontal FIG. 6B, FIG. 6C, and FIG. 6D show the web 1u of the large beam 1 at the position (joining position), respectively, where the large beam joint 4b is in contact with the web 1u of the large beam 1. It is shown on both sides of the joists 2 state joining of joists 2 3 is completed.
The embodiment 5 is provided with a bolt hole 4o of the elongated hole in the beams joining portion 4a of the joint fittings 4,4 3, the high-strength bolts 5 inserted through-provisionally fastened to the bolt holes 4o an axis joining hardware 4 , 4 3 the vertical position from the (retracted position) by rotating and movement in a horizontal position (joint position) is a structure for joining girders 1 and the beams 2, 2 3, basically, FIGS. 3 (a) It is obtained by the joining construction method as shown in (d).
A part of the description of the parts common to the above embodiments is omitted.

図７（ａ）に示すように、大梁１のウェブ１ｕの一方の側の小梁２に接合される接合金物４の小梁接合部４ａには、長孔のボルト孔４ｏのみを設け大梁接合部４ｂに小梁接合部４ａのボルト孔４ｏと同じ水平線（接合金物４の中心線）上に標準的なボルト孔４ｓを設けている。
また、大梁１のウェブ１ｕの他方の側の小梁２３に接合される接合金物４３は幅広であり、小梁接合部４ａに長孔のボルト孔４ｏと、その垂直位置の下部の標準的なボルト孔４ｓの２個のボルト孔を設け、大梁接合部４ｂにも、小梁接合部４ａのボルト孔４ｏ、４ｓと同じ水平線上にある上下の２個の標準的なボルト孔４ｓを設けている。
この接合金物４３は、小梁接合部４ａの長孔のボルト孔４ｏに挿通・仮締結した高力ボルト５を軸として垂直位置（退避位置）から水平位置（接合位置）に回動・移動する。接合金物４３の小梁接合部４ａのボルト孔４ｓには、接合金物４３を水平位置（接合位置）にし大梁接合部４ｂを大梁１のウェブ１ｕに当接し高力ボルト５ｓで締結して小梁接合部４ａを高力ボルト５で小梁２３に本締結する時に、高力ボルト５ｓを挿通して締結する。 As shown in FIG. 7 (a), only the long hole bolt hole 4o is provided in the small beam joint portion 4a of the metal joint 4 to be bonded to the small beam 2 on one side of the web 1u of the large beam 1 to connect the large beam. A standard bolt hole 4s is provided in the part 4b on the same horizontal line as the bolt hole 4o of the small beam joint part 4a (center line of the joint hardware 4).
The joining fittings 4 3 joined to the beams 2 3 on the other side of the girder 1 the web 1u is wide, and the bolt holes 4o of the elongated hole in the small Joints 4a, the lower the standard of the vertical position Two bolt holes of a typical bolt hole 4s are provided, and two upper and lower standard bolt holes 4s on the same horizontal line as the bolt holes 4o and 4s of the small beam joint portion 4a are also provided in the large beam joint portion 4b. Provided.
The joining fittings 4 3, the rotary-movement in a horizontal position from a vertical position (retracted position) of the high-strength bolts 5 inserted through-provisionally fastening the bolt hole 4o of the long hole of the small Beam 4a as an axis (junction position) To do. The bolt holes 4s of the beams joining portion 4a of the joint fittings 4 3, joining fittings 4 3 the horizontal position by fastening the girder junction 4b to (bonding position) in contact high-strength bolts 5s to girder 1 of the web 1u when the fastening to the beams 2 3 small joints 4a with high-strength bolts 5, for fastening by inserting the high-strength bolts 5s.

この実施形態例５は、図７（ｂ）〜（ｄ）に示すように、大梁１のウェブ１ｕの一方の側に当接する小梁２側の接合金物４の大梁接合部４ｂと、大梁１のウェブ１ｕの他方の側に当接する小梁２３側の接合金物４３の大梁接合部４ｂの上部側を１本の高力ボルト５ｓで大梁１のウェブ１ｕに同時に接合し、接合金物４３の大梁接合部４ｂの下部側を大梁１のウェブ１ｕに独立した高力ボルト５ｓで接合するものである。
この実施形態例５では、大梁１のウェブ１ｕの両側に、サイズ（せい）が異なり使用する高力ボルト本数の異なる小梁２と２３を、幅の異なる接合金物４、４３を用いて、接合金物４、４３の相対する一部側を１本の高力ボルト５ｓで同時に締結するものであり、実施形態例４と同様の効果に加えて、要求される強度の異なる小梁２、２３を、要求される接合部強度に応じた接合条件で同時的に大梁に接合することができ、本発明の適用幅を拡大することができる。
（請求項２およびの請求項４の実施形態例に相当）。 As shown in FIGS. 7 (b) to 7 (d), the fifth embodiment includes a large beam joint portion 4 b of a metal joint 4 on the small beam 2 side that abuts on one side of the web 1 u of the large beam 1, and the large beam 1. of the other side of the web 1u upper side abutting joists 2 3 side of the junction fittings 4 3 girders joint 4b are joined simultaneously girder 1 of the web 1u with a single high-strength bolts 5s, joining hardware 4 3 is joined to the web 1u of the large beam 1 by an independent high strength bolt 5s.
In the exemplary embodiment 5, on both sides of the web 1u of girders 1, size (blame) are different high-strength bolts number used different small beam 2 and 2 3, with a different joint fittings 4,4 3 width It is intended to conclude at the same time the opposite part side of the joining hardware 4,4 3 with a single high strength bolts 5s, embodiment 4 in addition to the same effect as, the required different small beam intensity 2 2 and 3 can be simultaneously joined to the girder under the joining condition according to the required joint strength, and the applicable range of the present invention can be expanded.
(Corresponding to the embodiment of claim 2 and claim 4).

［接合構造の実施形態例６］
図８は、本発明の接合施工方法によって、Ｈ形鋼梁からなる大梁１のウェブ１ｕの両側の相対する位置に、それぞれＨ形鋼梁からなる小梁２と小梁２１の端部を、接合金物４４、４５と高力ボルト５、５ｓを介して同時的に接合し得られる大梁１と小梁２、２１の高力ボルト接合構造の実施形態例６を部分的に示したものである。
図８（ａ）は、小梁２に小梁接合部４ａを高力ボルト５で仮締結した接合金物４４と、小梁２２に小梁接合部４ａを高力ボルト５で仮締結した接合金物４５が、水平位置（接合位置）にあって、それぞれの大梁接合部４ｂを大梁１のウェブ１ｕに当接した状態を示しており、図８（ｂ）、（ｃ）、（ｄ）は、大梁１と小梁２３の接合が完了した状態を示す。 [Sixth Embodiment Example of Joining Structure]
8, by joining the construction method of the present invention, on both sides of the opposite position of the girders 1 of the web 1u consisting of H shaped steel beams, joists 2 consisting of H shaped steel beams to respectively the joists 2 1 end , an embodiment 6 of the joining hardware 4 4, 4 5 and high-strength bolts 5,5s the girder 1, which is obtained simultaneously bonded via the joists 2,2 1 of high-strength bolted joint structure partially illustrated It is a thing.
8 (a) is a joint hardware 4 4 provisionally fastened by high strength bolts 5 small Joints 4a to the beams 2, tentatively concluded joists junction 4a with high-strength bolts 5 to the beams 2 2 joining hardware 4 5, in the horizontal position (joint position), the respective girder junction 4b to the girder 1 web 1u shows the contact state, FIG. 8 (b), (c), (d ) shows a state in which bonding has been completed girder 1 and the beams 2 3.

この実施形態例６は、大梁１のウェブ１ｕの両側に接合する小梁２、２１側の接合金物４４、４５の小梁接合部４ａに長孔のボルト孔４ｏを設け、このボルト孔４ｏに挿通・仮締結した高力ボルト５を軸として、接合金物４４、４５を垂直位置（退避位置）から水平位置（接合位置）に回動・移動して大梁１のウェブ１ｕの両側に、小梁２、２１側の接合金物４４、４５の大梁接合部４ｂを同時に接合するものであり、基本的には、図３（ａ）〜（ｄ）で示すような接合施工方法で得られるものである。上記各実施形態例と共通する部分については説明を一部省略する。 In this sixth embodiment, a long bolt hole 4o is provided in a small beam joint portion 4a of a small beam 2, 21 which is bonded to both sides of a web 1u of a large beam 1 and a small metal joint 4 4 , 4 5. With the high-strength bolt 5 inserted and temporarily fastened into the hole 4o as an axis, the metal joints 4 4 , 4 5 are rotated and moved from the vertical position (retracted position) to the horizontal position (joined position) to move the web 1u of the large beam 1 on both sides, which simultaneously joining girders junction 4b of joists 2, 2 1 side joining hardware 4 4, 4 5, basically, joined as shown in Figure 3 (a) ~ (d) It is obtained by the construction method. A part of the description of the parts common to the above embodiments is omitted.

この実施形態例６では、図８（ａ）に示すように、大梁１のウェブ１ｕの両側の相対する位置に配置して接合される接合金物４４、４５の小梁接合部４ａには長孔のボルト孔４ｏを設け、大梁接合部４ｂに標準的なボルト孔４ｓを設けているが、接合金物４４、４５が水平位置（接合位置）にあるとき、大梁接合部４ｂのボルト孔４ｓの中心線は、小梁接合部４ａの長孔のボルト孔４ｏの中心線の上方に距離ｆ分偏心した位置にある。
接合金物４４、４５は、それぞれ小梁接合部４ａの長孔のボルト孔４ｏに挿通して仮締結した高力ボルト５を軸として、垂直位置（退避位置）から垂直位置（接合位置）まで回動・移動するようにしており、接合金物４４、４５を水平状態にし、それぞれ大梁接合部４ｂの接合面を大梁１のウェブ１ｕに当接・位置合わせし、大梁１のウェブ１ｕと、その両側に配置した接合金物４４、４５の大梁接合部４ａを１本の高力ボルト５ｓで締結し、仮締結してある接合金物４４、４５の小梁接合部４ａの長孔のボルト孔４ｏに挿通した高力ボルト５を本締結することにより、大梁１のウェブ１ｕの両側に小梁２、２１を接合するものである。 In the sixth embodiment, as shown in FIG. 8A, the small beam joint 4a of the joint hardware 4 4 , 4 5 that is arranged and joined to the opposite positions on both sides of the web 1u of the large beam 1 A long bolt hole 4o is provided, and a standard bolt hole 4s is provided in the large beam joint 4b. When the joint hardware 4 4 , 4 5 is in a horizontal position (joint position), the bolt of the large beam joint 4b is provided. The center line of the hole 4s is located at a position eccentric by a distance f above the center line of the long bolt hole 4o of the small beam joint 4a.
The metal fittings 4 4 , 4 5 are inserted into the bolt holes 4o of the long holes of the beam connecting portions 4a and temporarily fastened with the high-strength bolts 5 as an axis from the vertical position (retracted position) to the vertical position (joined position). The joints 4 4 , 4 5 are placed in a horizontal state, the joint surfaces of the large beam joints 4 b are brought into contact with and aligned with the web 1 u of the large beam 1, and the web 1 u of the large beam 1 is aligned. The large beam joints 4a of the joint hardware 4 4 , 4 5 arranged on both sides thereof are fastened with one high-strength bolt 5s, and the small beam joints 4a of the joint hardware 4 4 , 4 5 are temporarily fastened. by this fastening the high-strength bolts 5 inserted through the bolt holes 4o of the long hole, in which bonding the joists 2,2 1 on both sides of the girder 1 web 1u.

この実施形態例６では、大梁１のウェブ１ｕの両側に小梁２、２１を接合した状態での接合金物４４、４５の大梁接合部４ｂを高力ボルト５ｓで締結する位置を、小梁接合部４ａを小梁２、２１に高力ボルト５で締結する位置より上方に距離ｆ分偏心させて、大梁接合部４ｂを締結している高力ボルト５ｓの下側領域を上側領域より大きくしているので、小梁２、２１から大梁１のウェブ１ｕに作用する曲げモーメントに対する圧縮力作用領域を広げることができる。
また、図８（ｂ）に示すように、小梁２、２１から作用する相対する圧縮力をバランスさせることもできることから、この大梁接合部４ｂ（大梁１のウェブ１ｕ）における圧縮力作用領域でボルト接合を省略しても大梁に対する曲げモーメントを安定的に支持させることもできる。 In this embodiment 6, the position for fastening the girders junction 4b of the joining hardware 4 4, 4 5 in a state joined to joists 2,2 1 on both sides of the girder 1 web 1u in high strength bolts 5s, small beam 4a and upwardly length f min is eccentric from the position for fastening by high-strength bolts 5 to the beams 2, 2 1, the upper and lower region of the high-strength bolts 5s that has entered into large-beam 4b Since it is larger than the region, the region where the compressive force acts on the bending moment acting on the web 1u of the large beam 1 from the small beams 2, 21 can be expanded.
Further, as shown in FIG. 8 (b), the compressive force acting area because it can be to balance the opposing compressive forces, in the girders junction 4b (girder 1 of the web 1u) acting from the beams 2, 2 1 Even if the bolt connection is omitted, the bending moment with respect to the large beam can be stably supported.

すなわち、実施形態例６では、高力ボルト５ｓと高力ボルト５の位置が距離ｆ分偏心していることにより、図９に示すように、大梁１に例えば小梁２１が接合された状態で、大梁１のウェブ１ｕから距離ｄの位置で、小梁２１に矢印方向の荷重Ｑが付与されたとき、引張力が作用する大梁１の高力ボルト５ｓ中心から圧縮力が作用する下部領域の中心までの距離ｖを大きくすることによって圧縮力作用領域を広くし大梁１に作用する圧縮力を分散することによって、大梁１のウェブ１ｕでの圧縮力に対する反力を大きくして、曲げモーメントＭ（Ｍ＝Ｑ・ｄ）に対する抵抗を大きくすることができる。
ここで、圧縮力作用領域とは、図９の場合では、大梁１に高力ボルト５で接合された接合金物４のボルト孔中心から下側領域で、接合金物４が大梁１のウェブ１ｕに当接された領域をいう。
また、実施形態例４、５と同様、大梁１のウェブ１ｕの両側に小梁２、２１を同時的に接合することができ、ボルト本数を少なくしてボルトコストを低減し接合施工コストを低減できる。
（請求項２および請求項４の実施形態例に相当）。 That is, in the embodiment 6, by the position of the high-strength bolts 5s and high-strength bolts 5 are eccentric distance f min, as shown in FIG. 9, the girder 1 in a state where for example the beams 2 1 is joined When the load Q in the direction of the arrow is applied to the small beam 21 at a distance d from the web 1u of the large beam 1 , the lower region where the compressive force acts from the center of the high-strength bolt 5s of the large beam 1 on which the tensile force acts. By increasing the distance v to the center of the beam, the compressive force acting region is widened and the compressive force acting on the large beam 1 is dispersed, thereby increasing the reaction force against the compressive force on the web 1u of the large beam 1 and bending moment. The resistance to M (M = Q · d) can be increased.
Here, in the case of FIG. 9, the compressive force acting region is a lower region from the center of the bolt hole of the joint metal 4 joined to the main beam 1 with the high-strength bolt 5, and the joint metal 4 is connected to the web 1 u of the main beam 1. The abutted area.
Further, similarly to the embodiment examples 4 and 5, the small beams 2 and 21 can be simultaneously bonded to both sides of the web 1u of the large beam 1 , and the bolt cost is reduced by reducing the number of bolts, thereby reducing the bonding construction cost. Can be reduced.
(Corresponding to the embodiments of claims 2 and 4).

［接合構造の実施形態例７］
図１０（ａ）、（ｂ）は、本発明の接合施工方法によって、Ｈ形鋼梁からなる大梁１のウェブ１ｕの両側の相対する位置に、それぞれＨ形鋼梁からなる小梁２と小梁２１の端部を、接合金物４６、４７と高力ボルト５、５ｓを介して同時的に接合し得られる大梁１と小梁２、２１の高力ボルト実施形態例７を部分的に示したものである。
図１０（ａ）は、小梁２に小梁接合部４ａを高力ボルト５で仮締結した接合金物４６と、小梁２１に小梁接合部４ａを高力ボルト５で仮締結した接合金物４７が、水平位置（接合位置）にあって、それぞれの大梁接合部４ｂを大梁１のウェブ１ｕに当接した状態を示しており、図１０（ｂ）、（ｃ）、（ｄ）は、大梁１と小梁２、２１の接合が完了した状態を示す。 [Seventh Embodiment of Joining Structure]
10 (a) and 10 (b) show a small beam 2 made of an H-shaped steel beam and a small beam respectively at opposite positions on both sides of a web 1u of a large beam 1 made of an H-shaped steel beam by the joining method of the present invention. the ends of the beam 2 1, the joining hardware 4 6, 4 7 and high-strength bolts girder 1 and the beams 2, 2 1 of high-strength bolts embodiment 7 to be obtained simultaneously bonded via 5,5s This is a partial illustration.
10 (a) is a joint hardware 4 6 small Beam 4a is temporarily fastened by high-strength bolts 5 to the beams 2, tentatively concluded joists junction 4a with high-strength bolts 5 to the beams 2 1 joining hardware 4 7, in the horizontal position (joint position) shows the contact state of each girder joint 4b to girder 1 of the web 1u, FIG 10 (b), (c), (d ) shows a state in which bonding has been completed girder 1 and the beams 2, 2 1.

この実施形態例７では、図１０（ａ）に示すように、大梁１のウェブ１ｕの両側の相対する位置に配置した小梁２１、２２側の接合金物４５は、それぞれ小梁接合部４ａの長孔のボルト孔４ｏに挿通して仮締結した高力ボルト５を軸として、垂直位置（退避位置）から水平位置（接合位置）まで回動・移動するようにしており、接合金物４６、４７を水平状態にして大梁接合部４ｂの接合面を大梁１のウェブ１ｕに当接・位置合わせし、大梁１のウェブ１ｕの両側に配置した接合金物４６、４７の大梁接合部４ａを１本の高力ボルト５ｓで同時的に締結し、仮締結してある接合金物４６、４７の小梁接合部４ａの長孔のボルト孔４ｏに挿通した高力ボルト５を本締結することにより、大梁１のウェブ１ｕの両側に小梁２、２１を接合するものである。
ここで用いる接合金物４６、４７は、大梁接合部４ｂの幅を小梁接合部４ａの後端の幅ｗよりα分大きくして小梁側接合部４ａの幅をｗ〜（ｗ＋α）の傾斜幅とし、大梁側接合部４ｂのボルト孔４ｓの下部側領域をボルト孔４ｓの上側領域より大きくして、小梁２、２１から大梁１のウェブ１ｕに作用する曲げモーメントに対する圧縮力作用領域を広げることができるようにしている。上記各実施形態例と共通する部分については説明を一部省略する。 In the embodiment example 7, FIG. 10 (a), the joists 2 1 arranged on both sides of the opposite position of the web 1u of girders 1, 2 2 side joining hardware 4 5, respectively joists joined With the high-strength bolt 5 inserted into the long bolt hole 4o of the portion 4a and temporarily tightened as an axis, it rotates and moves from the vertical position (retracted position) to the horizontal position (joined position). 4 6 , 4 7 are placed in a horizontal state and the joint surface of the large beam joint 4 b is brought into contact with and aligned with the web 1 u of the large beam 1, and the large beams of the joint hardware 4 6 , 4 7 disposed on both sides of the web 1 u of the large beam 1. simultaneously entered into a joint portion 4a in a single high-strength bolts 5s, high strength bolt inserted through the bolt holes 4o of the long hole of the temporary fastening joining hardware 4 6 are, 4 7 joists joints 4a 5 by this conclusion, the small beam 2, 2 1 on both sides of the girder 1 web 1u contact the It is intended to.
The metal joints 4 6 , 4 7 used here have a width of the large beam joint portion 4b that is larger than the width w of the rear end of the small beam joint portion 4a by α, so that the width of the small beam side joint portion 4a is w to (w + α). The lower side region of the bolt hole 4s of the large beam side joint 4b is made larger than the upper region of the bolt hole 4s, and the compressive force against the bending moment acting on the web 1u of the large beam 1 from the small beams 2, 21 The working area can be expanded. A part of the description of the parts common to the above embodiments is omitted.

この接合構造の形態例７では、小梁接合部４ａの幅をｗ〜（ｗ＋α）の傾斜幅とし、大梁側接合部４ｂのボルト孔４ｓの下部側領域をボルト孔４ｓの上側領域より大きくして、小梁２、２１から大梁１のウェブ１ｕに作用する曲げモーメントに対する圧縮力作用領域を広げることができるようにしているので、上記の実施形態例６と同様、大梁１のウェブ１ｕに対する圧縮力作用領域でボルト接合を省略しても大梁１に対する曲げモーメントを安定的に支持させることができる。
したがって、実施形態例６と同様、圧縮力作用領域でボルトを省略して大梁１のウェブ１ｕの両側に小梁２、２１を同時的に接合することができ、ボルト本数を少なくしてボルトコストを低減し接合施工コストを低減できる。
（請求項２および請求項５の実施形態例に相当）。 In Embodiment 7 of this joint structure, the width of the small beam joint 4a is set to an inclined width of w to (w + α), and the lower region of the bolt hole 4s of the large beam side joint 4b is made larger than the upper region of the bolt hole 4s. Thus, the compressive force acting region against the bending moment acting on the web 1u of the large beam 1 from the small beams 2, 21 can be expanded, so that the web 1u of the large beam 1 with respect to the web 1u is similar to the sixth embodiment. Even if the bolt connection is omitted in the compressive force acting region, the bending moment with respect to the large beam 1 can be stably supported.
Therefore, as in the sixth embodiment, the bolts can be omitted in the compressive force acting region, and the small beams 2 and 21 can be joined simultaneously on both sides of the web 1u of the large beam 1, and the bolt cost can be reduced by reducing the number of bolts. Can be reduced, and the cost of joining work can be reduced.
(Corresponding to the embodiments of claims 2 and 5).

また、大梁１の下フランジ１ｂと、小梁２、２１のウェブ２ｕ端と、接合金物４６、４７の下端間に形成される空間をダクトスペース１２として、各種ケーブルやホース、換気や排気ダクトを収納するダクトや排気ダクト８の配設のために有効に利用できる。このことは、特に上記の接合構造の実施形態例４〜６のいずれにおいても同様である。他の大梁の片側に小梁を接合している接合構造の実施形態例１〜３においても同様である
（請求項６の形態例に相当）。 Further, a space formed between the lower flange 1b of the large beam 1 , the web 2u end of the small beams 2, 21 and the lower ends of the metal fittings 4 6 , 4 7 serves as a duct space 12, and various cables, hoses, ventilation, It can be effectively used for the arrangement of the duct for storing the exhaust duct and the exhaust duct 8. This is the same in any of the embodiment examples 4 to 6 of the above-described joint structure. The same applies to Embodiments 1 to 3 of the joining structure in which the small beams are joined to one side of the other large beams (corresponding to the embodiment of Claim 6).

本発明は、上記の実施形態例の内容に限定されるものではない。接合部位、接合対象の大梁、小梁、配置（両側、片側を含む）、接合金物の形状、配置（両側、片側を含む）、退避位置、ボルト孔の形状、高力ボルトの種類（仮ボルトの使用の有無を含む）、本数、配置、座金の使用の有無、接合施工手順などについては、接合対象物、接合部位、要求される接合部性能などに応じて、上記請求項を満足する範囲内で変更のあるものである。   The present invention is not limited to the contents of the above embodiment. Joint part, large beam, small beam to be joined, placement (including both sides and one side), shape of joint hardware, placement (including both sides and one side), retraction position, bolt hole shape, high strength bolt type (temporary bolt) The number, arrangement, presence / absence of use of washers, joining procedure, etc. are within the scope of satisfying the above claims, depending on the object to be joined, joining site, required joint performance, etc. There are changes within.

（ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例１で接合が完了した状態を示す一部断面正面説明図、（ｂ）図は、ａ）図の一部断面側面説明図、（ｃ）図は、（ａ）図、（ｂ）図の接合金物の構造例を示す立体説明図。(A) The figure is a partially sectional front explanatory view showing a state in which the joining is completed in the embodiment 1 of the high strength bolt joining structure of the large beam and the small beam of the present invention, and (b) is a diagram of a) the figure. Partial sectional side explanatory drawing, (c) The figure is a three-dimensional explanatory drawing which shows the structural example of the joining metal fitting of (a) figure, (b) figure. 本発明での接合金物の垂直位置（退避位置）から水平位置（接合位置）までの回動・移動状態例を示す正面説明図。Front explanatory drawing which shows the example of a rotation and a movement state from the vertical position (retraction | saving position) to the horizontal position (joining position) of the metal fitting in this invention. （ａ）、（ｂ）図は、図１の大梁と小梁の高力ボルト接合構造の実施形態例１に基づく接合施工方法（手順）例を示す一部断面正面説明図。(A), (b) figure is a partial cross section front explanatory drawing which shows the example of the joining construction method (procedure) based on Embodiment Example 1 of the high strength bolt joint structure of the big beam and the small beam of FIG. （ｃ）、（ｄ）図は、図３−1図に続く接合施工方法（手順）例を示す一部断面正面説明図。(C), (d) figure is a partial cross section front explanatory drawing which shows the example of the joining construction method (procedure) following FIG. 3-1. （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例２で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、接合完了した状態を示す一部断面正面説明図。(A) The figure is a partial cross-sectional front explanatory view showing a state in which the joining position of the joint hardware is determined in the embodiment 2 of the high strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining completed. （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例３で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、（ａ）の状態から接合が完了した状態を示す一部断面正面説明図、（ｃ）図は、（ｂ）図の一部断面側面説明図。(A) The figure is a partial cross-sectional front explanatory view showing a state where the joining position of the joint hardware is determined in the embodiment 3 of the high strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining was completed from the state of (a), (c) figure is a partial cross section side explanatory drawing of (b) figure. （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例４で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、（ａ）の状態から接合が完了した状態を示す一部断面正面説明図。(A) The figure is a partial cross-sectional front explanatory view showing a state in which the joining position of the joint hardware is determined in the embodiment 4 of the high-strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining was completed from the state of (a). （ｃ）図は、（ｂ）図のＡａ−Ａｂ矢視断面説明図、（ｄ）図は、（ｂ）図のＢａ−Ｂｂ矢視断面説明図。(C) The figure is Aa-Ab arrow cross-sectional explanatory drawing of (b) figure, (d) The figure is Ba-Bb arrow cross-sectional explanatory drawing of (b) figure. （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例５で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、（ａ）の状態から接合が完了した状態を示す一部断面正面説明図。(A) The figure is a partial cross-sectional front explanatory view showing a state in which the joining position of the joint hardware is determined in the embodiment 5 of the high-strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining was completed from the state of (a). （ｃ）図は、（ｂ）図のＣａ−Ｃｂ矢視断面説明図、（ｄ）図は、（ｂ）図のＤａ−Ｄｂ矢視断面説明図。(C) The figure is a cross-sectional explanatory view taken along the line Ca-Cb in (b), and (d) is the cross-sectional explanatory view taken along the line Da-Db in (b). （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例６で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、（ａ）の状態から接合が完了した状態を示す一部断面正面説明図。(A) The figure is a partial cross-sectional front explanatory view showing a state in which the joining position of the joint hardware is determined in Embodiment 6 of the high-strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining was completed from the state of (a). （ｃ）図は、（ｂ）図のＥａ−Ｅｂ矢視断面説明図、（ｄ）図は、（ｂ）図のＦａ−Ｆｂ矢視断面説明図。(C) The figure is Ea-Eb arrow cross-section explanatory drawing of (b) figure, (d) The figure is Fa-Fb arrow cross-section explanatory drawing of (b) figure. 実施形態例６で大梁１のウェブ１ｕに作用する曲げモーメントと圧縮力作用領域を説明する模式図。The schematic diagram explaining the bending moment and compressive force action area | region which act on the web 1u of the large beam 1 in Embodiment 6. FIG. （ａ）図は、本発明の大梁と小梁の高力ボルト接合構造の実施形態例７で、接合金物の接合位置を決めた状態を示す一部断面正面説明図、（ｂ）図は、（ａ）の状態から接合が完了した状態を示す一部断面正面説明図。(A) The figure is a partial cross-sectional front explanatory view showing the state where the joining position of the joint hardware is determined in the embodiment 7 of the high strength bolt joint structure of the large beam and the small beam of the present invention, (b) The partial cross section front explanatory drawing which shows the state which joining was completed from the state of (a). （ｃ）図は、（ｂ）図のＧａ−Ｇｂ矢視断面説明図、（ｄ）図は、（ｂ）図のＨａ−Ｈｂ矢視断面説明図。(C) The figure is the Ga-Gb arrow sectional explanatory drawing of (b) figure, (d) The figure is the Ha-Hb arrow sectional explanatory drawing of (b) figure. 本発明を適用する鉄骨建築物の大梁と小梁の高力ボルト接合部位例を示す平面説明図。Plane | planar explanatory drawing which shows the example of the high strength volt | bolt joining site | part of the big beam and small beam of a steel frame to which this invention is applied. （ａ）図は、従来の大梁と小梁の高力ボルト接合部構造例を示す一部断面正面説明図、（ｂ）図は、（ｂ）図の一部断面側面説明図。(A) The figure is a partial sectional front explanatory view showing an example of a conventional high-strength bolt joint structure of a large beam and a small beam, (b) Figure is a partial sectional side explanatory view of (b) figure. （ａ）図は、従来の大梁と小梁の高力ボルト接合部構造の他の例を示す一部断面正面説明図、（ｂ）図は、（ｂ）図の一部断面側面説明図。(A) The figure is a partial sectional front explanatory view showing another example of the conventional high-strength bolt joint structure of a large beam and a small beam, (b) Figure is a partial sectional side explanatory view of (b) figure.

符号の説明Explanation of symbols

１ 大梁 １ａ 上フランジ
１ｂ 下フランジ １ｕ ウエブ
１ｏ ボルト孔 ２、２１、２２、２３ 小梁
２ａ 上フランジ ２ｂ 下フランジ
２ｕ ウェブ ２ｏ ボルト孔
４、４１、４２、４３、４４、４５、４６、４７ 接合金物
４ａ 小梁接合部 ４ｂ 大梁接合部
４ｏ ボルト孔（長孔） ４ｓ ボルト孔（標準）
５ 高力ボルト（長孔ボルト孔４ｏ用）
５ｓ 高力ボルト（ボルト孔４ｓ用）
６ ナット ７ 座金
８ ダクト １１、１２ ダクトスペース
（従来例）
３、３１ ガセットプレート ３ａ ボルト接合部
１０ 添板
Ｐ 鉄骨柱 DESCRIPTION OF SYMBOLS 1 Large beam 1a Upper flange 1b Lower flange 1u Web 1o Bolt hole 2, 2 1 , 2 2 , 2, 3 Small beam 2a Upper flange 2b Lower flange 2u Web 2o Bolt hole 4, 4 1 , 4 2 , 4 3 , 4 4 , 4 5 , 4 6 , 4 7 Joined hardware 4a Small beam joint 4b Large beam joint 4o Bolt hole (long hole) 4s Bolt hole (standard)
5 High strength bolts (for long hole bolt holes 4o)
5s high strength bolt (for bolt hole 4s)
6 Nut 7 Washer 8 Duct 11, 12 Duct space (conventional example)
3, 3 1 Gusset plate 3a Bolt joint 10 Attachment plate P Steel column

Claims (6)

大梁間に小梁を交叉するように配置し、大梁のウェブと小梁のウェブとのボルト接合部を有する接合金物を介して高力ボルト接合する大梁と小梁の高力ボルト接合施工方法であって、接合金物の小梁接合部のボルト孔の少なくとも１個を、大梁接合部方向に長径を有する長孔のボルト孔とし、１個の長孔のボルト孔に挿通したボルトで小梁接合部を小梁のウェブに回動および移動可能に仮締結し、ボルトを軸に回動させて接合金物を小梁側に退避させた状態の小梁を、大梁間に配置し、大梁と小梁のウェブ上面を位置合わせし、退避状態にある接合金物を水平位置まで回動及び移動し、大梁接合部を大梁のウェブに当接して高力ボルトで締結し、仮締結しておいた小梁接合部と小梁ウェブを本締結することを特徴とする大梁と小梁の高力ボルト接合施工方法。   A high-strength bolt jointing method of a large beam and a small beam, which is arranged so that the small beam crosses between the large beams, and is joined with a high-strength bolt via a joint metal having a bolt joint between the web of the large beam and the web of the small beam. Then, at least one of the bolt holes in the small beam joint portion of the joint metal is made into a long bolt hole having a long diameter in the direction of the large beam joint portion, and the small beam joint is performed with the bolt inserted into the single long hole bolt hole. The small beam is temporarily fastened to the web of the small beam so that it can be rotated and moved, the bolt is rotated around the shaft, and the joint metal is retracted to the small beam side. Align the upper surface of the web of the beam, rotate and move the joint hardware in the retracted state to the horizontal position, abut the large beam joint to the web of the large beam and fasten it with high-strength bolts. A high-strength bolt for large beams and small beams, characterized in that a beam joint and a small beam web are fully fastened. Joining construction method. 大梁間に小梁を大梁と交叉するように配置し、大梁のウェブと小梁のウェブとのボルト接合部を有する接合金物を介して高力ボルト接合した大梁と小梁の高力ボルト接合構造であって、接合金物の小梁接合部のボルト孔の少なくとも１個が、大梁接合部方向に長径を有する長孔のボルト孔で、接合金物の小梁接合部の上端面と小梁の上フランジの下面との間に、接合金物が１個の長孔のボルト孔に挿通したボルトを軸に垂直位置から水平位置に至る回動過程で小梁の上フランジの下面に干渉しないように干渉回避空間を形成したことを特徴とする大梁と小梁の高力ボルト接合構造。   A high-strength bolt connection structure of a large beam and a small beam in which a small beam is arranged so as to intersect the large beam between the large beams, and a high-strength bolt connection is performed through a joint hardware having a bolt joint between the large beam web and the small beam web. And at least one of the bolt holes in the small beam joint portion of the joint hardware is a long bolt hole having a long diameter in the direction of the large beam joint portion, and on the upper end surface of the small beam joint portion of the joint hardware and the small beam. Between the lower surface of the flange, the metal fittings interfere so that they do not interfere with the lower surface of the upper flange of the small beam during the turning process from the vertical position to the horizontal position with the bolt inserted into the bolt hole of one long hole as the axis. A high-strength bolt joint structure of a large beam and a small beam characterized by forming an avoidance space. 大梁のウェブ両側の相対する位置に、接合金物を介して小梁が高力ボルト接合されており、大梁のウェブ両側の相対する位置に当接された接合金物の大梁接合部が、大梁のウェブに少なくとも１本の高力ボルトで同時に締結されていることを特徴とする請求項２に記載の大梁と小梁の高力ボルト接合構造。   The small beam is high-strength bolted to the opposite positions on both sides of the web of the large beam via the joint metal, and the large beam joints of the joint hardware abutted on the opposite positions on both sides of the large beam web are connected to the web of the large beam. The high-strength bolt joint structure of a large beam and a small beam according to claim 2, wherein at least one high-strength bolt is fastened simultaneously. 大梁のウェブに接合され水平位置にある接合金物の大梁接合部のボルト孔が、小梁接合部の長孔ボルト孔の位置より上方側に位置し、小梁から大梁のウェブに対する曲げモーメントによる圧縮力作用領域を広げることを特徴とする請求項２または３に記載の大梁と小梁の高力ボルト接合構造。
The bolt hole of the large beam joint of the joint metal that is joined to the web of the big beam is positioned above the position of the long hole bolt hole of the small beam joint and is compressed by the bending moment from the small beam to the web of the large beam. 4. The high-strength bolt joint structure of a large beam and a small beam according to claim 2 or 3, wherein a force acting region is widened.
接合金物の小梁接合部の幅を、長孔のボルト孔側から大梁接合部まで傾斜的に大きくして、大梁のウェブに接合され水平位置にある接合金物の大梁接合部のボルト孔の下部側領域を上側領域より大きくして、小梁から大梁のウェブに対する曲げモーメントによる圧縮力作用領域を広げることを特徴とする請求項２〜４のいずれかに記載の大梁と小梁の高力ボルト接合構造。 The width of the small beam joint of the joint hardware is increased from the bolt hole side of the long hole to the large beam joint, and the lower part of the bolt hole of the large beam joint of the joint hardware that is joined to the web of the large beam in a horizontal position. 5. The high-strength bolt for a large beam and a small beam according to any one of claims 2 to 4 , wherein the side region is made larger than the upper region, and an area in which a compressive force acts on the web of the large beam from the small beam is expanded. Joining structure. 接合金物の下面と小梁端面と大梁の下フランジ間に形成された空間に各種ケーブルやホース、換気や排気ダクトを収納するダクトを配設したことを特徴とする請求項２〜５のいずれかに記載の大梁と小梁の高力ボルト接合構造。   6. A duct for housing various cables, hoses, ventilation and exhaust ducts is disposed in a space formed between the lower surface of the joint hardware, the end surface of the small beam, and the lower flange of the large beam. The high-strength bolt joint structure of large beams and small beams as described in 1.
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