JP5318298B1

JP5318298B1 - Beam joint structure

Info

Publication number: JP5318298B1
Application number: JP2013113348A
Authority: JP
Inventors: 等塩原; 芳生井上; 健治横田; 功治岡
Original assignee: Kse Network
Current assignee: Kse Network
Priority date: 2013-05-29
Filing date: 2013-05-29
Publication date: 2013-10-16
Anticipated expiration: 2033-05-29
Also published as: JP2014231706A

Abstract

【課題】柱に接合された、ウェブとフランジを有するブラケットと、ブラケットと同一断面の梁部材を両者に跨るフランジ用継手プレートとウェブ用継手プレートを用いて接合する上で、両継手プレートの露出を回避し、ウェブに関してフランジの片側の、互いに対向する面側にのみフランジ用継手プレートを配置しながらも、ブラケットと梁部材間での十分な応力伝達を可能にする。
【解決手段】ブラケット２と梁部材３をウェブ２１、３１の中心に関して各フランジ２２、２３、３２、３３の幅方向両側の幅が相違する断面形状に形成し、フランジ用継手プレート４をブラケット２及び梁部材３のフランジ２２、２３、３２、３３の幅が大きい側の、互いに対向する面側に配置し、ウェブ用継手プレート５をブラケット２及び梁部材３のウェブ２１、３１の、フランジ用継手プレート４に面する側に配置する。
【選択図】図１The present invention relates to a bracket having a web and a flange, which are joined to a column, and a beam member having the same cross section as that of the bracket. The flange joint plate is disposed only on the opposite sides of the flange with respect to the web, while allowing sufficient stress transmission between the bracket and the beam member.
A bracket 2 and a beam member 3 are formed in a cross-sectional shape having different widths on both sides in the width direction of each flange 22, 23, 32, 33 with respect to the center of a web 21, 31, and the flange joint plate 4 is And the flanges 22, 23, 32, 33 of the beam member 3 are arranged on the opposite sides of the wide side of the flange 22, 23, 32, 33. It is arranged on the side facing the joint plate 4.
[Selection] Figure 1

Description

本発明は柱に接合された、ウェブとフランジを有するブラケットと、ブラケットと同一断面の梁部材を両者に跨るフランジ用継手プレートとウェブ用継手プレートを用いて接合した梁の継手構造に関するものである。 The present invention relates to a bracket joint having a web and a flange joined to a pillar, and a beam joint structure in which a beam member having the same cross section as the bracket is joined to each other by using a flange joint plate and a web joint plate. .

柱に接合されたブラケットと梁部材を現場でボルトを用いて接合する場合、両者のフランジ間とウェブ間にそれぞれフランジ用継手プレートとウェブ用継手プレートを跨設し、各継手プレートとフランジ及びウェブにボルトを挿通させることにより、ブラケットと梁部材間で曲げモーメントとせん断力の伝達が可能な状態に両者の接合が行われる（特許文献１、２参照）。 When the bracket and beam member joined to the column are joined using bolts in the field, the flange joint plate and web joint plate are laid between the flanges and the web, respectively. The bolts are inserted through the bracket and the beam member so that the bending moment and the shearing force can be transmitted between the bracket and the beam member (see Patent Documents 1 and 2).

継手プレートが跨るブラケットと梁部材の突き合わせ部（継手位置）は長期荷重による曲げモーメントが小さくなる箇所に設定されるが、ブラケットと梁部材間で曲げモーメントが確実に伝達されるよう、フランジ用継手プレートは両者のフランジの上面と下面の両面に配置されることが多い（特許文献１）。フランジ用継手プレートがフランジの両面に重ねられることは、ブラケットと梁部材の、継手プレートが跨る区間の剛性を高める意味もある。 The butting part (joint position) of the bracket and beam member straddling the joint plate is set at a location where the bending moment due to long-term load is reduced, but the flange joint is used to ensure that the bending moment is transmitted between the bracket and beam member. The plates are often arranged on both the upper and lower surfaces of both flanges (Patent Document 1). The fact that the flange joint plate is overlapped on both surfaces of the flange also has the meaning of increasing the rigidity of the section of the bracket and the beam member that the joint plate straddles.

フランジの片面側のみにフランジ用継手プレートを配置するとすれば、フランジ用継手プレートは配置のし易さから、上部フランジの上面側と下部フランジの下面側に配置されることになる（特許文献１、３参照）。 If the flange joint plate is disposed only on one side of the flange, the flange joint plate is disposed on the upper surface side of the upper flange and the lower surface side of the lower flange for ease of disposition (Patent Document 1). 3).

また構造物の主要な架構を構成する梁が構面内方向の鉛直荷重と水平荷重による曲げモーメントを負担するときに横倒れ座屈を防止する上で、曲げモーメント負担時の応力状態が幅方向の中心に関して片側に偏ることなく均等になるよう、梁にはＨ形鋼等、幅方向の中心に関して対称な形状をした断面形状の梁部材（鋼材）が使用される。 In addition, when the beams that make up the main structure of the structure bear bending moments due to vertical and horizontal loads in the in-plane direction, the stress state at the time of bending moment loading is the width direction to prevent buckling. A cross-sectional beam member (steel material) having a symmetrical shape with respect to the center in the width direction, such as H-shaped steel, is used for the beam so that the center of the beam is uniform without being biased to one side.

これに対し、例えば梁が耐震補強架構、または制震補強架構の一部を構成する場合のように（特許文献４参照）、屋外に露出した状態で架設される場合には、補強架構は構造物の外観を呈することから、意匠上、継手プレートが視界に表れないことが望ましい場合がある。 On the other hand, when a beam is erected in the state of being exposed outdoors, such as when a beam forms a part of a seismic reinforced frame or a part of a seismic reinforced frame (see Patent Document 4), the reinforced frame has a structure. In view of the appearance of the object, it may be desirable for the joint plate not to appear in the field of view.

特開平８−２９１５５８号公報（段落００１０、図１）JP-A-8-291558 (paragraph 0010, FIG. 1) 特開平８−１７７１２１号公報（段落００１１等、図１、図３、図５等）JP-A-8-177121 (paragraph 0011, etc., FIG. 1, FIG. 3, FIG. 5, etc.) 特開２００５−４２３７５号公報（請求項６、段落００１９）JP 2005-42375 A (Claim 6, paragraph 0019) 特許第４８３７１４５号公報（請求項１、段落０００２〜０００６、００１４〜００２１、図９）Japanese Patent No. 4837145 (Claim 1, paragraphs 0002-0006, 0014-0021, FIG. 9)

ウェブ用継手プレートは上記補強架構の梁においてウェブの屋内側に配置されれば、外観に表れない状態になる。但し、フランジ用継手プレートをブラケットと梁部材の各フランジに露出を回避するように重ねようとすれば、上部フランジには下面側に、下部フランジには上面側にフランジ用継手プレートを配置せざるを得ない。この場合、上部フランジの下面側と下部フランジの上面側にはウェブがあるため、各フランジに重なるフランジ用継手プレートはウェブを挟んで幅方向両側に分断されることになる。 If the web joint plate is disposed on the indoor side of the web in the beam of the reinforcing frame, the web joint plate does not appear in the appearance. However, if the flange joint plates are stacked on the brackets and beam members so as to avoid exposure, the flange joint plates must be arranged on the lower surface of the upper flange and on the upper surface of the lower flange. I do not get. In this case, since there is a web on the lower surface side of the upper flange and the upper surface side of the lower flange, the flange joint plate that overlaps each flange is divided on both sides in the width direction with the web interposed therebetween.

しかしながら、ウェブの屋外側は外部に露出する状態になるため、結局、フランジのウェブ側（内周側）の面にフランジ用継手プレートを配置しようとすれば、フランジ用継手プレートはウェブの片側である屋内側に配置せざるを得なくなる。 However, since the outdoor side of the web is exposed to the outside, if the flange joint plate is to be arranged on the web side (inner peripheral side) surface of the flange, the flange joint plate will be on one side of the web. It must be placed on a certain indoor side.

ここで、前記のようにブラケットと梁部材が幅方向の中心に関して対称形をしている場合、フランジ用継手プレートの幅は上部フランジの上面側に配置される場合の半分以下の大きさに制限されることになる。特にフランジのウェブ側の面には、ウェブのフィレット部、または溶接金属が存在している関係で、ウェブの片側に配置されるフランジ用継手プレートの幅はより小さくなる。 Here, when the bracket and the beam member are symmetrical with respect to the center in the width direction as described above, the width of the flange joint plate is limited to less than half of the case where it is arranged on the upper surface side of the upper flange. Will be. In particular, the flange joint plate disposed on one side of the web has a smaller width due to the presence of the fillet portion of the web or the weld metal on the web side surface of the flange.

この結果、フランジ用継手プレートの幅方向にボルトを複数列、配列させることが困難になり、ブラケットと梁部材間で十分な応力の伝達が図られるだけの接合状態を得ることができなくなることが想定される。 As a result, it becomes difficult to arrange multiple rows of bolts in the width direction of the flange joint plate, and it may not be possible to obtain a joint state that can transmit sufficient stress between the bracket and the beam member. is assumed.

本発明は上記背景より、柱と梁が例えば前記した補強架構の一部を構成するような場合に、ブラケットと梁部材を接合するための継手プレートの露出を回避し、ウェブに関してフランジの片側の、互いに対向する面側にのみフランジ用継手プレートを配置しながらも、ブラケットと梁部材間での十分な応力伝達を可能にする梁の継手構造を提案するものである。 The present invention avoids the exposure of the joint plate for joining the bracket and the beam member when the column and the beam form a part of the above-mentioned reinforcing frame, for example. The present invention proposes a joint structure for a beam that allows sufficient stress transmission between the bracket and the beam member while disposing the joint plate for the flange only on the surfaces facing each other.

請求項１に記載の発明の梁の継手構造は、柱に接合された、ウェブとフランジを有する鋼製のブラケットと、このブラケットに突き合わせられて接合され、前記ブラケットと同一断面の、ウェブとフランジを有する鋼製の梁部材を両者に跨るフランジ用継手プレートとウェブ用継手プレートを用いて接合した継手構造において、
前記ブラケットと前記梁部材が共に、前記ウェブが前記フランジの幅方向の中心より幅方向片側に寄り、前記ウェブの中心に関して前記各フランジの幅方向両側の幅が相違する断面形状をし、
前記フランジ用継手プレートが前記ブラケット及び前記梁部材のフランジの幅が大きい側の、互いに対向する面側に配置され、前記ウェブ用継手プレートが前記ブラケット及び前記梁部材のウェブの、前記フランジ用継手プレートに面する側に配置され、
前記フランジ用継手プレートが前記ブラケット及び前記梁部材の前記フランジにボルトにより接合され、前記ウェブ用継手プレートが前記ブラケット及び前記梁部材の前記ウェブにボルトにより接合されていることを構成要件とする。 The beam joint structure according to claim 1 is a steel bracket having a web and a flange joined to a column, and a web and a flange having the same cross section as that of the bracket. In a joint structure in which a steel beam member having a joint is joined using a joint plate for a flange and a joint plate for a web straddling both,
Both the bracket and the beam member have a cross-sectional shape in which the web is closer to one side in the width direction than the center in the width direction of the flange, and the widths on both sides in the width direction of the flanges are different with respect to the center of the web.
The flange joint plate is disposed on opposite sides of the bracket and the beam member having a larger flange width, and the web joint plate is the flange joint of the bracket and the beam member web. Placed on the side facing the plate,
The flange joint plate is joined to the flange of the bracket and the beam member by a bolt, and the web joint plate is joined to the bracket and the web of the beam member by a bolt.

ブラケットが接合される柱は主に鉄骨造、鉄骨鉄筋コンクリート造（鋼管コンクリート造を含む）、または鉄筋コンクリート造であるが、ブラケットと柱の接合方法は問われず、溶接、接合金物を用いたボルト接合、あるいは接合金物とアンカーを用いた方法等がある。 The column to which the bracket is joined is mainly steel, steel reinforced concrete (including steel pipe concrete), or reinforced concrete, but the method of joining the bracket and the column is not limited. Welding, bolt joining using joint hardware, Alternatively, there is a method using a joint metal and an anchor.

ブラケットと梁部材が「ウェブとフランジを有する」とは、ブラケットと梁部材が共に、Ｈ形鋼に倣い、ブラケットと梁部材間で曲げモーメントを伝達する上部及び下部のフランジと、せん断力を伝達するウェブを有する断面形状をすることを言い、Ｃ形断面の他、Ｈ形断面やＣ形断面に類似した形状をする場合もある。 Bracket and beam member have “web and flange” means that both bracket and beam member follow H-shaped steel and transmit shearing force to upper and lower flanges that transmit bending moment between bracket and beam member It has a cross-sectional shape having a web, and may have a shape similar to an H-shaped cross section or a C-shaped cross section in addition to a C-shaped cross section.

ウェブはブラケット及び梁部材の縦断面図上、各フランジの幅方向の中心より幅方向片側に寄った位置に配置され、図３、図７に示すようにウェブの中心に関しては、各フランジ２２、２３、３２、３３の幅方向一方側の幅は他方側の幅より大きく、フランジ２２、２３、３２、３３の、ウェブ２１、３１から幅方向両側に張り出す各側の幅が相違する。「各フランジ」はブラケット２と梁部材３の上部フランジ２２、３２と下部フランジ２３、３３を指す。以下では上部フランジ２２、３２及び下部フランジ２３、３３の内、ウェブ２１、３１からの張り出し長さの大きい側を「（フランジの）幅の（が）大きい側（接続部２２ａ、２３ａ、３２ａ、３３ａ）」と言う。 The web is arranged at a position closer to one side in the width direction than the center in the width direction of each flange on the longitudinal sectional view of the bracket and the beam member, and as shown in FIGS. The width of one side in the width direction of 23, 32, 33 is larger than the width of the other side, and the width of each side of the flanges 22, 23, 32, 33 protruding from the webs 21, 31 to the both sides in the width direction is different. “Each flange” refers to the upper flanges 22 and 32 and the lower flanges 23 and 33 of the bracket 2 and the beam member 3. In the following, among the upper flanges 22 and 32 and the lower flanges 23 and 33, the side with the longer overhang length from the webs 21 and 31 is referred to as “the side with the larger (flange) width (the connecting portions 22 a, 23 a, 32 a, 33a) ".

ウェブ２１、３１はフランジ２２、２３、３２、３３の幅方向中心より幅方向片側に寄った位置にあればよいが、フランジ用継手プレート４はフランジ２２、２３、３２、３３の幅が大きい側に重なって接合されるため、幅の大きい側の、ウェブ２１、３１からの張り出し長さは幅方向にボルトを複数、配列させることが可能な大きさが確保される。フランジ２２、２３、３２、３３の、ウェブ２１、３１からの張り出し長さはウェブ２１、３１の片面からの距離になるが、ウェブ２１、３１とフランジ２２、２３、３２、３３の交差部にはフィレット部、または溶接金属がある関係で、フィレット部等の幅分はフランジ２２、２３、３２、３３の張り出し長さから差し引かれる。「複数、配列」とは、必ずしもボルト６、７が幅の大きい側においてフランジ２２、２３、３２、３３の幅方向を向いた同一線上に複数本、配列する必要はなく、図１、図２に示すようにフランジ２２、２３、３２、３３の軸方向に沿ってジグザグ状（千鳥状）に配列する場合も含むことを言う。 The webs 21 and 31 need only be located closer to one side in the width direction than the center in the width direction of the flanges 22, 23, 32 and 33, but the flange joint plate 4 is on the side where the widths of the flanges 22, 23, 32 and 33 are larger. Therefore, the overhanging length from the webs 21 and 31 on the wide side is secured so that a plurality of bolts can be arranged in the width direction. The overhanging length of the flanges 22, 23, 32, 33 from the webs 21, 31 is the distance from one side of the webs 21, 31, but at the intersection of the webs 21, 31 and the flanges 22, 23, 32, 33. Is a relationship with a fillet portion or a weld metal, and the width of the fillet portion or the like is subtracted from the overhanging length of the flanges 22, 23, 32, 33. “Multiple arrangement” does not necessarily mean that a plurality of bolts 6 and 7 are arranged on the same line facing the width direction of the flanges 22, 23, 32, and 33 on the side where the width is large. As shown in FIG. 4, it also includes a case where the flanges 22, 23, 32, 33 are arranged in a zigzag shape (staggered shape) along the axial direction.

フランジ用継手プレート４はブラケット２及び梁部材３のフランジ２２、２３、３２、３３の幅が大きい側の、互いに対向する面側に配置され、フランジ２２、２３、３２、３３にボルト６により接合される。「互いに対向する面」は上部フランジ２２、３２と下部フランジ２３、３３が互いに対向する、ウェブ２１、３１側（内周側）の面であり、上部フランジ２２、３２の下面と下部フランジ２３、３３の上面を指す。以下では場合により「フランジ用継手プレートの配置面」と言う。 The flange joint plate 4 is arranged on the opposite side of the flange 2, 23, 32, 33 of the bracket 2 and the beam member 3, and is joined to the flanges 22, 23, 32, 33 by bolts 6. Is done. The “surfaces facing each other” are surfaces on the webs 21 and 31 side (inner peripheral side) where the upper flanges 22 and 32 and the lower flanges 23 and 33 are opposed to each other. The upper surface of 33 is indicated. In the following, it is sometimes referred to as “the arrangement surface of the flange joint plate”.

ウェブ用継手プレート５はブラケット２及び梁部材３のウェブ２１、３１の両面の内、フランジ用継手プレート４に面する側に配置され、ウェブ２１、３１にボルト７により接合される。「フランジ用継手プレート４に面する側の面」はフランジ２２、２３、３２、３３に接合されるフランジ用継手プレート４に臨む側の面で、フランジ２２、２３、３２、３３の幅が大きい側の面を指し、ブラケット２と梁部材３からなる梁３０が補強架構１０を構成する場合には屋内側（構造物側）を向く面になる。以下では場合により「ウェブ用継手プレート５の配置面」と言う。 The web joint plate 5 is disposed on the side of the bracket 2 and the beam member 3 facing the flange joint plate 4 on both sides of the webs 21 and 31, and is joined to the webs 21 and 31 by bolts 7. The “surface facing the flange joint plate 4” is the surface facing the flange joint plate 4 joined to the flanges 22, 23, 32, 33, and the widths of the flanges 22, 23, 32, 33 are large. When the beam 30 composed of the bracket 2 and the beam member 3 constitutes the reinforcing frame 10, it is a surface facing the indoor side (structure side). In the following, it is sometimes referred to as “arrangement surface of the web joint plate 5”.

フランジ用継手プレート４が上部フランジ２２、３２及び下部フランジ２３、３３の、互いに対向する面側（フランジ用継手プレート４の配置面）に配置され、ウェブ用継手プレート５がウェブ２１、３１の、フランジ用継手プレート４に面する側（ウェブ用継手プレート５の配置面）に配置されることから、ウェブ２１、３１がフランジ２２、２３、３２、３３に対して幅方向片側に寄る側はフランジ用継手プレート４が配置される側（フランジ用継手プレート４の配置面）の反対側になる。フランジ用継手プレート４は図３、図７に示すようにウェブ２１、３１がフランジ２２、２３、３２、３３の幅方向の一方に寄った側の反対側の、上部フランジ２２、３２と下部フランジ２３、３３が互いに対向する面側に配置されることになる。 The flange joint plate 4 is disposed on the surface sides of the upper flanges 22 and 32 and the lower flanges 23 and 33 facing each other (surface on which the flange joint plate 4 is disposed), and the web joint plate 5 is disposed on the webs 21 and 31. Since the flange 21 is disposed on the side facing the flange joint plate 4 (arrangement surface of the web joint plate 5), the side where the webs 21, 31 approach one side in the width direction relative to the flanges 22, 23, 32, 33 is a flange. This is on the side opposite to the side on which the joint plate 4 is disposed (the surface on which the flange joint plate 4 is disposed). As shown in FIGS. 3 and 7, the flange joint plate 4 includes the upper flanges 22, 32 and the lower flange on the opposite sides of the webs 21, 31 on the side of the flanges 22, 23, 32, 33 that are close to one side in the width direction. 23 and 33 will be arrange | positioned at the surface side which mutually opposes.

上部フランジ２２、３２及び下部フランジ２３、３３の幅方向一方側の幅が他方側の幅より大きいことで、ブラケット２と梁部材３はＨ形が変形した、またはＣ形に近い断面形状をするため、フランジ用継手プレート４の配置面とウェブ用継手プレート５の配置面はブラケット２と梁部材３の内周面になり、反対側の面は断面上の中心、あるいは図心に関して外周面になる。例えば柱１とブラケット２及び梁部材３からなる梁３０が構造物（主構造体１００）の屋外側に沿って構築される補強架構１０の一部を構成する場合に、ウェブ２１、３１の外周面が屋外側を向いた状態で、ブラケット２と梁部材３が柱１、１間に架設されるとすれば、フランジ用継手プレート４とウェブ用継手プレート５がブラケット２と梁部材３の内周面側に配置される限り、外周面側に露出することがなく、補強架構１０の外観意匠に与える影響はない。 Since the width of one side in the width direction of the upper flanges 22 and 32 and the lower flanges 23 and 33 is larger than the width of the other side, the bracket 2 and the beam member 3 are deformed in the H shape or have a cross-sectional shape close to the C shape. Therefore, the arrangement surface of the flange joint plate 4 and the arrangement surface of the web joint plate 5 are the inner peripheral surfaces of the bracket 2 and the beam member 3, and the opposite surface is the center on the cross section or the outer peripheral surface with respect to the centroid. Become. For example, when the beam 30 including the pillar 1, the bracket 2, and the beam member 3 constitutes a part of the reinforcing frame 10 constructed along the outdoor side of the structure (main structure 100), the outer peripheries of the webs 21 and 31. If the bracket 2 and the beam member 3 are installed between the columns 1 and 1 in a state where the surface faces the outdoor side, the flange joint plate 4 and the web joint plate 5 are disposed inside the bracket 2 and the beam member 3. As long as it is arranged on the peripheral surface side, it is not exposed on the outer peripheral surface side, and there is no influence on the appearance design of the reinforcing frame 10.

上部フランジ２２、３２及び下部フランジ２３、３３の幅方向一方側の幅が他方側の幅より大きいことで、幅の大きい側の、ウェブ２１、３１からの張り出し長さが、ウェブ２１、３１が幅方向の中心に位置する場合より大きくなり、ウェブ２１、３１が幅方向の中心に位置する場合よりフランジ用継手プレート４の幅を大きく確保することが可能になる。この結果、ウェブ２１、３１に関してフランジ２２、２３、３２、３３の片側の、互いに対向する面側にのみフランジ用継手プレート４を配置しながらも、フランジ用継手プレート４の幅方向にボルト６を複数、配列させることが可能になり、ブラケット２と梁部材３間で十分な応力の伝達が図られるだけの接合状態を得ることが可能になる。 Since the width of one side in the width direction of the upper flanges 22 and 32 and the lower flanges 23 and 33 is larger than the width of the other side, the overhanging length from the webs 21 and 31 on the wide side is It becomes larger than the case where it is located at the center in the width direction, and it becomes possible to ensure a larger width of the flange joint plate 4 than when the webs 21, 31 are located at the center in the width direction. As a result, while the flange joint plate 4 is disposed only on one side of the flanges 22, 23, 32, 33 with respect to the webs 21, 31, the flange 6 is disposed in the width direction of the flange joint plate 4. A plurality of them can be arranged, and it is possible to obtain a joined state in which sufficient stress can be transmitted between the bracket 2 and the beam member 3.

フランジ用継手プレート４を直接、上部フランジ２２、３２及び下部フランジ２３、３３の、互いに対向する面に接合する場合、フランジ用継手プレート４をブラケット２及び梁部材３のフランジ２２、２３、３２、３３に接合するボルト６の頭部６ａは原則的に各フランジ２２、２３、３２、３３に関してフランジ用継手プレート４の反対側に位置する（請求項２）。同様にウェブ用継手プレート５をブラケット２及び梁部材３の各ウェブ２１、３１に接合するボルト７の頭部７ａはウェブ２１、３１に関してフランジ用継手プレート４に面しない側に位置する（請求項２）。「原則的に」とは、ボルト６、７の頭部６ａ、７ａ、もしくは軸部６ｂ、７ｂがフランジ用継手プレート４とウェブ用継手プレート５の配置面側に位置することもある（請求項３）ことの意味である。 When the flange joint plate 4 is directly joined to the mutually opposing surfaces of the upper flanges 22 and 32 and the lower flanges 23 and 33, the flange joint plate 4 is joined to the flanges 2, 23, 32 of the bracket 2 and the beam member 3. The head 6a of the bolt 6 joined to 33 is in principle located on the opposite side of the flange joint plate 4 with respect to each flange 22, 23, 32, 33 (Claim 2). Similarly, the head 7a of the bolt 7 that joins the web joint plate 5 to the respective webs 21 and 31 of the bracket 2 and the beam member 3 is located on the side of the webs 21 and 31 that does not face the flange joint plate 4 (Claims). 2). "In principle" means that the heads 6a and 7a of the bolts 6 and 7 or the shafts 6b and 7b may be located on the arrangement surface side of the flange joint plate 4 and the web joint plate 5 (claims). 3) That means.

請求項２の場合、フランジ用継手プレート４をフランジ２２、２３、３２、３３に接合するボルト６の軸部６ｂは図３、図４に示すように各フランジ２２、２３、３２、３３とフランジ用継手プレート４を貫通し、各フランジ２２、２３、３２、３３のフランジ用継手プレート４の対向する面側に配置されるナット６１に螺合するか、または軸部６ｂが各フランジ２２、２３、３２、３３とフランジ用継手プレート４に螺入する。後者の場合、軸部６ｂはナット６１に螺合する場合と螺合しない場合がある。ウェブ用継手プレート５をウェブ２１、３１に接合するボルト７の軸部７ｂはウェブ２１、３１とウェブ用継手プレート５を貫通し、フランジ用継手プレート４に面する側に配置されるナット７１に螺合するか、ウェブ２１、３１とウェブ用継手プレート５に螺入する。後者の場合、軸部７ｂはナット７１に螺合する場合と螺合しない場合がある。 In the case of claim 2, the shaft portion 6b of the bolt 6 that joins the flange joint plate 4 to the flanges 22, 23, 32, 33 is connected to the flanges 22, 23, 32, 33 and the flanges as shown in FIGS. Threaded through the joint plate 4 and screwed into a nut 61 disposed on the opposite surface side of the flange joint plate 4 of each flange 22, 23, 32, 33, or the shaft portion 6 b is connected to each flange 22, 23. 32, 33 and the flange joint plate 4. In the latter case, the shaft portion 6b may or may not be screwed to the nut 61. The shaft portion 7b of the bolt 7 that joins the web joint plate 5 to the webs 21 and 31 penetrates the webs 21 and 31 and the web joint plate 5 and is attached to the nut 71 arranged on the side facing the flange joint plate 4. The web 21 or 31 and the web joint plate 5 are screwed together. In the latter case, the shaft portion 7 b may or may not be screwed to the nut 71.

請求項２ではボルト６、７の頭部６ａ、７ａが梁３０の外周面側に露出することになるが、露出が頭部６ａ、７ａのみで済み、フランジ用継手プレート４とウェブ用継手プレート５の露出は回避されるため、フランジ用継手プレート４とウェブ用継手プレート５の接合のための部品の一部（頭部６ａ、７ａ）が露出することによる梁３０の外観意匠に与える影響は小さい。ボルト６、７として図１〜図４に示すようにトルシア型のボルトを使用すれば、頭部が球面状であることで、六角ボルトの場合より露出による外観への影響は軽減される。 In claim 2, the heads 6a and 7a of the bolts 6 and 7 are exposed on the outer peripheral surface side of the beam 30, but only the heads 6a and 7a are exposed, and the flange joint plate 4 and the web joint plate are exposed. 5 is avoided, the influence on the appearance design of the beam 30 due to the exposure of some parts (heads 6a, 7a) for joining the flange joint plate 4 and the web joint plate 5 is small. When Torcia type bolts are used as the bolts 6 and 7, as shown in FIGS. 1 to 4, the head has a spherical shape, so that the influence on the appearance due to exposure is reduced compared to the case of hexagon bolts.

ボルト頭部６ａ、７ａの外周面側への露出を完全に回避するには、ボルト６、７の頭部６ａ、７ａを各フランジ２２、２３、３２、３３の、対向する面側（フランジ用継手プレート４の配置面）に配置し、ウェブ２１、３１の、フランジ用継手プレート４に面する側（ウェブ用継手プレート５の配置面）に配置することが必要になる。すなわち、フランジ用継手プレート４をブラケット２及び梁部材３の各フランジ２２、２３、３２、３３に接合するボルト６の頭部６ａ、もしくは軸部６ｂがブラケット２及び梁部材３の各フランジ２２、２３、３２、３３の幅が大きい側の、互いに対向する面側に配置された状態でその面に直接、もしくは間接的に固定され、ウェブ用継手プレート５をブラケット２及び梁部材３の各ウェブに接合するボルト７の頭部７ａ、もしくは軸部７ｂがブラケット２及び梁部材３の各ウェブ２１、３１の、フランジ用継手プレート４に面する側に配置された状態でその面に直接、もしくは間接的に固定される（請求項３）。 In order to completely prevent the bolt heads 6a and 7a from being exposed to the outer peripheral surface side, the heads 6a and 7a of the bolts 6 and 7 are connected to the facing surfaces of the flanges 22, 23, 32 and 33 (for flanges). It is necessary to arrange on the side of the webs 21 and 31 facing the flange joint plate 4 (placement surface of the web joint plate 5). That is, the head 6a of the bolt 6 that joins the flange joint plate 4 to the flanges 22, 23, 32, 33 of the bracket 2 and the beam member 3, or the shaft portion 6b is the flanges 22 of the bracket 2 and the beam member 3. The web joint plate 5 is fixed to the surface of the bracket 2 and the beam member 3 in a state where the web plates 23, 32, 33 are arranged on the surfaces facing each other on the large width side. The head 7a of the bolt 7 to be joined to the shaft 7b or the shaft 7b is arranged directly on the surface of the web 2 of the bracket 2 and the beam member 3 on the side facing the flange joint plate 4 or It is fixed indirectly (Claim 3).

請求項３ではボルト頭部６ａ、７ａ、もしくは軸部６ｂ、７ｂのフランジ２２、２３、３２、３３及びウェブ２１、３１への固定方法は問われないが、基本的には各ボルト６、７の頭部６ａ、７ａ、もしくは軸部６ｂ、７ｂを個別に直接、溶接する方法と、全ボルトを一括で間接的に固定する方法がある。「全ボルト６、７」は上下のフランジ用継手プレート４、４とウェブ用継手プレート５単位で、それぞれをフランジ２２、２３、３２、３３とウェブ２１、３１に接合するために必要な本数のボルト６、７を指す。 Although the fixing method to the flanges 22, 23, 32, 33 and the webs 21, 31 of the bolt heads 6a, 7a or the shafts 6b, 7b is not limited in claim 3, basically, the bolts 6, 7 There are a method of directly welding the heads 6a, 7a or the shafts 6b, 7b individually and a method of indirectly fixing all the bolts collectively. "All bolts 6 and 7" are the upper and lower flange joint plates 4 and 4 and the web joint plate 5 units, the number of which is necessary to join the flanges 22, 23, 32 and 33 and the webs 21 and 31, respectively. The bolts 6 and 7 are indicated.

請求項３における「ボルト６の頭部６ａ、もしくは軸部６ｂがフランジ２２、２３、３２、３３の、互いに対向する面（フランジ用継手プレート４の配置面）に直接、固定される」とは、ボルト６の頭部６ａや軸部６ｂが前記対向する面に溶接されることを言い、「間接的に固定される」とは、例えば後述のフランジ固定板８にボルト６の頭部６ａや軸部６ｂが溶接等により直接、固定され、フランジ固定板８がフランジ２２、２３、３２、３３に溶接等により固定されることを言う。 “The head 6a of the bolt 6 or the shaft portion 6b is directly fixed to the mutually opposing surfaces of the flanges 22, 23, 32, 33 (the surface on which the flange joint plate 4 is disposed)”. The head 6a and the shaft 6b of the bolt 6 are welded to the opposing surfaces, and “indirectly fixed” means, for example, the head 6a of the bolt 6 and the flange fixing plate 8 described later. The shaft portion 6b is directly fixed by welding or the like, and the flange fixing plate 8 is fixed to the flanges 22, 23, 32, and 33 by welding or the like.

同様に「ボルト７の頭部７ａ、もしくは軸部７ｂがウェブ２１、３１の、フランジ用継手プレート４に面する側の面（ウェブ用継手プレート５の配置面）に直接、固定される」とは、ボルト７の頭部７ａや軸部７ｂがウェブ２１、３１の片面に溶接されることを言い、「間接的に固定される」とは、後述のウェブ固定板９にボルト７の頭部７ａや軸部７ｂが溶接等により直接、固定され、ウェブ固定板９がウェブ２１、３１に溶接等により固定されることを言う。 Similarly, “the head 7a or the shaft portion 7b of the bolt 7 is directly fixed to the surface of the webs 21 and 31 facing the flange joint plate 4 (the surface on which the web joint plate 5 is disposed)”. Means that the head 7 a and the shaft 7 b of the bolt 7 are welded to one side of the webs 21 and 31, and “indirectly fixed” means that the head of the bolt 7 is fixed to the web fixing plate 9 described later. 7a and the shaft part 7b are directly fixed by welding or the like, and the web fixing plate 9 is fixed to the webs 21 and 31 by welding or the like.

請求項３で言う「ボルト頭部６ａ、７ａ、もしくは軸部６ｂ、７ｂ」の「軸部６ｂ、７ｂ」はボルトの頭部が不在の、スタッドボルト状のボルトの軸部を言う。請求項３ではボルト６、７の頭部６ａ、７ａ等、軸方向の一端部をブラケット２と梁部材３の各フランジ２２、２３、３２、３３、及び各ウェブ２１、３１に直接、溶接することがあり、他端部の軸部６ｂ、７ｂにフランジ用継手プレート４とウェブ用継手プレート５を接合するためのナット６１、７１を締結することがあるため、ボルトは必ずしも頭部を持つ形態である必要がない。 The "shaft portions 6b, 7b" of the "bolt head portions 6a, 7a or shaft portions 6b, 7b" in claim 3 refer to the shaft portions of stud bolt-like bolts without the bolt head portions. In claim 3, the axial ends of bolts 6 and 7 such as heads 6a and 7a are directly welded to brackets 2 and flanges 22, 23, 32 and 33 of beams 3 and webs 21 and 31, respectively. In some cases, nuts 61 and 71 for joining the flange joint plate 4 and the web joint plate 5 may be fastened to the shaft portions 6b and 7b at the other end, so that the bolt does not necessarily have a head. There is no need to be.

全ボルト６、７を一括で固定する場合、各フランジ２２、２３、３２、３３のフランジ用継手プレート４が配置される側の面に、ボルト６の頭部６ａ、もしくは軸部６ｂが納まる溝８ａを有するフランジ固定板８が、ボルト６の頭部６ａ、もしくは軸部６ｂが納まった状態で固定される（請求項４）。ウェブ２１、３１のウェブ用継手プレート５が配置される側の面には、ボルト７の頭部７ａ、もしくは軸部７ｂが納まる溝９ａを有するウェブ固定板９が、ボルト７の頭部７ａ、もしくは軸部７ｂが納まった状態で固定される（請求項４）。フランジ固定板８とウェブ固定板９のフランジ２２、２３、３２、３３とウェブ２１、３１への固定は主に溶接に依るが、直接であるか、他の部材を介しての間接的であるかは問われない。 When all the bolts 6 and 7 are fixed together, a groove in which the head portion 6a of the bolt 6 or the shaft portion 6b is accommodated on the surface of the flanges 22, 23, 32 and 33 on the side where the flange joint plate 4 is disposed. The flange fixing plate 8 having 8a is fixed in a state in which the head portion 6a of the bolt 6 or the shaft portion 6b is accommodated (claim 4). A web fixing plate 9 having a groove 9a in which the head portion 7a of the bolt 7 or the shaft portion 7b is accommodated on the surface of the web 21 or 31 on the side where the web joint plate 5 is disposed is the head portion 7a of the bolt 7. Alternatively, the shaft portion 7b is fixed in a stored state (claim 4). The fixing of the flange fixing plate 8 and the web fixing plate 9 to the flanges 22, 23, 32, 33 and the webs 21 and 31 mainly depends on welding, but is direct or indirect through other members. It doesn't matter.

フランジ用継手プレート４用のボルト６の頭部６ａ、もしくは軸部６ｂは原則的にはフランジ固定板８の溝８ａ内に納まった状態で、溝８ａの内周面等に溶接等により固定され、ウェブ用継手プレート５用のボルト７の頭部７ａ、もしくは軸部７ｂはウェブ固定板９の溝９ａ内に納まった状態で、溝９ａの内周面等に溶接等により固定される。但し、溝８ａ、９ａ内に頭部６ａ、７ａを納める場合、六角形等、多角形状の頭部６ａ、７ａが溝８ａ、９ａ内に納まったときに、軸部６ｂ、７ｂへのナット６１、７１の締結時に頭部６ａ、７ａが共回りを生じない程度に、頭部６ａ、７ａの外周面（表面）が溝８ａ、９ａの内周面に密着した状態になれば、必ずしも頭部６ａ、７ａは溝８ａ、９ａに溶接される必要はない。 The head portion 6a or the shaft portion 6b of the bolt 6 for the flange joint plate 4 is basically fixed within the groove 8a of the flange fixing plate 8 by welding or the like while being fitted in the groove 8a. The head portion 7a or the shaft portion 7b of the bolt 7 for the web joint plate 5 is fixed to the inner peripheral surface of the groove 9a by welding or the like in a state of being accommodated in the groove 9a of the web fixing plate 9. However, when the heads 6a and 7a are accommodated in the grooves 8a and 9a, when the polygonal heads 6a and 7a such as hexagons are accommodated in the grooves 8a and 9a, the nuts 61 to the shaft portions 6b and 7b are provided. If the outer peripheral surfaces (surfaces) of the heads 6a, 7a are in close contact with the inner peripheral surfaces of the grooves 8a, 9a to such an extent that the heads 6a, 7a do not rotate together when fastening 6a and 7a do not need to be welded to the grooves 8a and 9a.

請求項３、４ではフランジ用継手プレート４用のボルト６の頭部６ａ、もしくは軸部６ｂがフランジ用継手プレート４の配置面側に直接、もしくは間接的に固定され、ウェブ用継手プレート５用のボルト７の頭部７ａ、もしくは軸部７ｂがウェブ用継手プレート５の配置面側に直接、もしくは間接的に固定されることで、ボルト６、７の頭部６ａ、７ａ、もしくは軸部６ｂ、７ｂがブラケット２と梁部材３の、フランジ２２、２３、３２、３３とウェブ２１、３１とで囲まれた内周側に納まり、外周側への露出がなくなるため、図５、図６に示すようにフランジ用継手プレート４とウェブ用継手プレート５の配置に伴う一切の部品の露出を回避することが可能になる。 In Claims 3 and 4, the head portion 6a or the shaft portion 6b of the bolt 6 for the flange joint plate 4 is directly or indirectly fixed to the arrangement surface side of the flange joint plate 4, and the web joint plate 5 is used. The head portion 7a or the shaft portion 7b of the bolt 7 is directly or indirectly fixed to the arrangement surface side of the web joint plate 5 so that the head portions 6a, 7a or the shaft portion 6b of the bolts 6 and 7 are fixed. 7b is housed on the inner peripheral side surrounded by the flanges 22, 23, 32, 33 and the webs 21, 31 of the bracket 2 and the beam member 3, and exposure to the outer peripheral side is eliminated. As shown, it is possible to avoid exposure of all parts associated with the arrangement of the flange joint plate 4 and the web joint plate 5.

本発明のブラケット２と梁部材３からなる梁３０の具体例としては、例えば図９に示すような既存構造物を耐震補強、あるいは制震補強する補強架構１０の一部を構成するつなぎ梁が想定されるが、使用状態で梁３０が主に軸方向力と、軸方向力に伴う構面内方向の曲げモーメント及びせん断力を負担し、材軸に直交する方向の曲げモーメントの負担が大きくならない状況下に置かれる架構であれば、梁３０が適用される架構の形態は問われない。 As a specific example of the beam 30 composed of the bracket 2 and the beam member 3 of the present invention, there is a connecting beam constituting a part of the reinforcing frame 10 for seismic reinforcement or seismic reinforcement of an existing structure as shown in FIG. Assumed, the beam 30 mainly bears the axial force and the bending moment and shear force in the in-plane direction accompanying the axial force in use, and the burden of the bending moment in the direction perpendicular to the material axis is large. As long as the frame is placed under a situation that does not become necessary, the form of the frame to which the beam 30 is applied is not limited.

図９に示す補強架構（制震補強架構）１０は例えば柱・梁からなるフレームを有する、既存の構造物等の主構造体１００の構面外にその構面内水平方向に配列し、本発明の柱１に相当する支柱１１と、隣接する支柱１１、１１間に架設される、ブレース本体にダンパーを組み込んだダンパー一体型ブレース１３と、隣接する支柱１１、１１間に架設される、本発明の梁３０に相当するつなぎ梁を基本的な構成要素とし、主に既存のコンクリート造躯体等の主構造体１００に耐震性能、あるいは制震性能を付与する目的で、主構造体１００の表面に接した状態、もしくは接近した状態で構築され、主構造体１００に接合される（特許第３９２５８６８号、特許文献４等）。 A reinforcement frame (seismic reinforcement frame) 10 shown in FIG. 9 has a frame made of columns and beams, for example, and is arranged outside the main surface 100 of the main structure 100 such as an existing structure in the horizontal direction within the surface. A column 11 corresponding to the column 1 of the invention, a damper-integrated brace 13 including a damper incorporated in a brace body, which is installed between adjacent columns 11, 11, and a book installed between adjacent columns 11, 11. The connecting beam corresponding to the beam 30 of the invention is a basic component, and the surface of the main structure 100 is mainly used for the purpose of providing seismic performance or vibration control performance to the main structure 100 such as an existing concrete structure. It is constructed in a state where it is in contact with or close to the main body 100 and is joined to the main structure 100 (Japanese Patent No. 3925868, Patent Document 4 and the like).

図９に示す補強架構１０の変形時の様子を示し、特許文献４の図９に相当する図１０に示すように各支柱１１は鉛直方向に分離した複数本の支柱材１１ａ〜１１ｃからなり、上下に分離した支柱材１１ａ、１１ｂ間にはそれぞれの軸の向きを保ったまま両者間の相対水平移動を許容する、水平剛性の小さい絶縁装置（積層ゴム支承や滑り支承等）１２が介在し、ダンパー一体型ブレース１３は隣接する支柱１１、１１の異なるレベルの支柱材１１ａ、１１ｂ間に、層間に跨るように架設される。 9 shows a state of deformation of the reinforcing frame 10, and each column 11 is composed of a plurality of column members 11a to 11c separated in the vertical direction as shown in FIG. 10 corresponding to FIG. An insulating device (laminated rubber bearing, sliding bearing, etc.) 12 with low horizontal rigidity is interposed between the vertically separated support members 11a, 11b while allowing the relative horizontal movement between them while maintaining the direction of each axis. The damper-integrated brace 13 is installed between strut members 11a and 11b at different levels of the adjacent struts 11 and 11 so as to straddle between layers.

梁３０に相当するつなぎ梁は主構造体１００が構面内方向（桁行方向）に層間変形を生じたときに、その層間変形に補強架構１０が追従するよう、主構造体１００と補強架構１０を一体構造化するために、隣接する支柱材１１ａ、１１ａ間に架設されながら、主構造体１００の、梁（桁）やスラブ等のいずれかの躯体に接合される。絶縁装置１２は構面内水平方向に隣接する支柱材１１ａ、１１ａ間の相対移動時には支柱材１１ａ（の軸）が鉛直状態を維持するように、上下に隣接する支柱材１１ａ、１１ｂ間に介在させられる。 The connecting beam corresponding to the beam 30 has the main structure 100 and the reinforcing frame 10 so that when the main structure 100 undergoes interlayer deformation in the in-plane direction (in the direction of the beam), the reinforcing frame 10 follows the interlayer deformation. In order to form a single structure, the main structure 100 is joined to one of the housings such as a beam (girder) or a slab while being installed between the adjacent support members 11a and 11a. The insulating device 12 is interposed between the vertically adjacent strut members 11a and 11b so that the strut member 11a (the axis thereof) maintains a vertical state during relative movement between the strut members 11a and 11a adjacent in the horizontal direction in the composition plane. Be made.

主構造体１００、あるいは補強架構１０の構面内水平方向に地震が発生し、その方向に層間変形が生じたときには図１０に二点鎖線で示すように主構造体１００の各階のスラブ等に接合され、補強架構１０の一部となるつなぎ梁（梁３０）とそのつなぎ梁に接合されている支柱材１１ａが主構造体１００に追従して相対移動し、構面内水平方向に隣接する支柱材１１ａ、１１ａ間に架設されているブレース１３のダンパー１３２が伸縮することにより減衰力を発生し、振動エネルギを吸収する。 When an earthquake occurs in the horizontal direction in the plane of the main structure 100 or the reinforcing frame 10 and an interlayer deformation occurs in that direction, as shown by a two-dot chain line in FIG. The joining beam (beam 30) that is joined and becomes a part of the reinforcing frame 10 and the support material 11a joined to the joining beam relatively follow the main structure 100 and are adjacent to each other in the horizontal direction in the construction surface. The damper 132 of the brace 13 installed between the support members 11a and 11a expands and contracts to generate a damping force and absorb vibration energy.

主構造体１００と補強架構１０とは、例えばスラブ同士、梁（桁）同士、柱同士、基礎同士等において互いに接合され、補強架構１０は前記のようにつなぎ梁（梁３０）において主構造体１００に直接、または付加的に構築されるスラブ等を介して間接的に接合される。補強架構１０は主構造体１００が構面内方向に層間変形を生じたときに、主構造体１００との間で水平力を授受するよう、主構造体１００との間で構面内水平方向の水平せん断力の伝達が可能な状態で構築されるため、つなぎ梁（梁３０）は補強架構１０としての機能上、主に水平せん断力伝達時の軸方向力と軸方向力に伴う構面内方向の曲げモーメントとせん断力を負担する状態に置かれ、材軸に直交する方向の曲げモーメントの負担は大きくならない。 The main structure 100 and the reinforcing frame 10 are joined to each other at, for example, slabs, beams (girder), columns, foundations, etc., and the reinforcing frame 10 is connected to the main structure at the connecting beam (beam 30) as described above. It is joined directly to 100 or indirectly through an additionally constructed slab or the like. The reinforcing frame 10 is horizontally in-plane with the main structure 100 so that a horizontal force is exchanged with the main structure 100 when the main structure 100 undergoes interlayer deformation in the in-plane direction. Since the horizontal shear force can be transmitted, the connecting beam (beam 30) has a function as the reinforcing frame 10, and is mainly composed of the axial force and the structural force accompanying the axial force when the horizontal shear force is transmitted. It is placed in a state that bears the bending moment and shearing force in the inward direction, and the burden of bending moment in the direction perpendicular to the material axis does not increase.

互いに接合されるブラケットと梁部材がウェブの中心に関して幅方向両側のフランジの幅が相違する断面形状をし、各フランジの幅方向一方側の幅（ウェブからの張り出し長さ）が他方側の幅より大きい形状をするため、幅の大きい側の、ウェブからの張り出し長さが、ウェブが幅方向の中心に位置する場合より大きくなり、ウェブが幅方向の中心に位置する場合よりフランジ用継手プレートの幅を大きく確保することができる。 The bracket and beam member to be joined to each other have a cross-sectional shape in which the width of the flange on both sides in the width direction is different with respect to the center of the web, and the width on one side of each flange (projection length from the web) is the width on the other side. Because of the larger shape, the overhanging length from the web on the wide side is greater than when the web is centered in the width direction, and the flange joint plate is greater than when the web is centered in the width direction. A large width can be secured.

この結果、ウェブに関してフランジの片側の、互いに対向する面側にのみフランジ用継手プレートを配置しながらも、フランジ用継手プレートの幅方向にボルトを複数、配列させることが可能になり、ブラケットと梁部材間で十分な応力の伝達が図られるだけの接合状態を得ることが可能になる。
As a result, it is possible to arrange a plurality of bolts in the width direction of the flange joint plate while arranging the flange joint plate only on one side of the flange facing the web, facing each other. It becomes possible to obtain a joined state in which sufficient stress is transmitted between the members.

（ａ）はフランジ用継手プレートとウェブ用継手プレートをブラケットと梁部材の内周側に配置し、ブラケットと梁部材の外周側に頭部が露出するボルトを用いてブラケットと梁部材を接合した様子を示した斜視図であり、図９に示す補強架構例における破線円で囲った部位を屋内側から見た状況に相当する。（ｂ）は（ａ）の鎖線円部分の拡大図である。(A) The flange joint plate and the web joint plate are arranged on the inner peripheral side of the bracket and the beam member, and the bracket and the beam member are joined using a bolt whose head is exposed on the outer peripheral side of the bracket and the beam member. It is the perspective view which showed the mode, and is equivalent to the condition which looked at the site | part enclosed with the broken-line circle in the reinforcement frame example shown in FIG. 9 from the indoor side. (B) is an enlarged view of a chain line circle portion of (a). 図１を屋外側から見たときの様子を示した斜視図である。It is the perspective view which showed the mode when FIG. 1 was seen from the outdoor side. 図１のｘ−ｘ線断面図である。It is the xx sectional view taken on the line of FIG. 図１のｙ−ｙ線矢視図である。It is a yy line arrow directional view of FIG. （ａ）はフランジ用継手プレートとウェブ用継手プレートをブラケットと梁部材の内周側に配置し、ブラケットと梁部材の内周側に頭部が固定されるボルトを用いてブラケットと梁部材を接合した様子を示した斜視図であり、図９に示す補強架構例における破線円で囲った部位を屋内側から見た状況に相当する。（ｂ）は（ａ）の鎖線円部分の拡大図である。(A) The flange joint plate and the web joint plate are arranged on the inner peripheral side of the bracket and the beam member, and the bracket and the beam member are attached using bolts whose heads are fixed to the inner peripheral side of the bracket and the beam member. It is the perspective view which showed a mode that it joined, and is equivalent to the condition which looked at the site | part enclosed with the broken-line circle in the reinforcement frame example shown in FIG. 9 from the indoor side. (B) is an enlarged view of a chain line circle portion of (a). 図５を屋外側から見たときの様子を示した斜視図である。It is the perspective view which showed the mode when FIG. 5 was seen from the outdoor side. 図５のｘ−ｘ線断面図である。FIG. 6 is a sectional view taken along line xx of FIG. 5. 図５のｙ−ｙ線矢視図である。FIG. 6 is a view taken along line yy in FIG. 5. 柱と、ブラケット及び梁部材からなる梁が補強架構を構成する場合に、補強架構が主構造体（構造物）の構面外に主構造体の構面内方向に沿って構築された様子を示した斜視図である。When beams consisting of columns, brackets and beam members constitute a reinforcing frame, the reinforcing frame is constructed outside the main structure (structure) along the in-plane direction of the main structure It is the shown perspective view. 図９に示す補強架構が主構造体の層間変形に追従して変形した様子を示した立面図である。It is the elevation which showed a mode that the reinforcement frame shown in FIG. 9 deform | transformed following the interlayer deformation of the main structure.

図１は柱１に接合された、ウェブ２１とフランジ２２、２３を有する鋼製のブラケット２と、ブラケット２に突き合わせられて接合され、ブラケット２と同一断面の、ウェブ３１とフランジ３２、３３を有する鋼製の梁部材３を両者に跨るフランジ用継手プレート４とウェブ用継手プレート５を用いて接合した梁３０の継手構造の例を示す。２２、３２はそれぞれブラケット２と梁部材３の上部フランジを、２３、３３はそれぞれブラケット２と梁部材３の下部フランジを指す。 FIG. 1 shows a steel bracket 2 having a web 21 and flanges 22, 23 joined to a column 1, and a web 31 and flanges 32, 33 having the same cross section as that of the bracket 2. The example of the joint structure of the beam 30 which joined the steel beam member 3 which has it using the joint plate 4 for flanges and the joint plate 5 for webs which straddles both is shown. Reference numerals 22 and 32 denote the upper flanges of the bracket 2 and the beam member 3, respectively, and reference numerals 23 and 33 denote the lower flanges of the bracket 2 and the beam member 3, respectively.

図２は図１を梁部材３を挟んだ反対側から見た様子を、図３は図１のｘ−ｘ線の断面を示す。図４はｙ−ｙ線の方向に見た様子を示すが、図４ではフランジ用継手プレート４の断面を示すためにフランジ用継手プレート４の、ボルト６の軸部６ｂを通る断面を示している。 2 shows a state of FIG. 1 viewed from the opposite side across the beam member 3, and FIG. 3 shows a cross section taken along line xx of FIG. FIG. 4 shows a state viewed in the direction of the y-y line. FIG. 4 shows a section through the shaft portion 6b of the bolt 6 of the flange joint plate 4 in order to show a section of the flange joint plate 4. FIG. Yes.

図３に示すようにブラケット２はウェブ２１がフランジ２２、２３の幅方向の中心より幅方向片側に寄り、ウェブ２１の中心に関して各フランジ２２、２３の幅方向両側の幅が相違する断面形状をする。同様に梁部材３もウェブ３１がフランジ３２、３３の幅方向の中心より幅方向片側に寄り、ウェブ３１の中心に関して各フランジ３２、３３の幅方向両側の幅が相違する断面形状をする。 As shown in FIG. 3, the bracket 2 has a cross-sectional shape in which the web 21 is closer to one side in the width direction than the center in the width direction of the flanges 22 and 23, and the widths on both sides of the flanges 22 and 23 are different with respect to the center of the web 21. To do. Similarly, the beam member 3 also has a cross-sectional shape in which the web 31 is closer to one side in the width direction than the center in the width direction of the flanges 32 and 33, and the widths on both sides in the width direction of the flanges 32 and 33 are different with respect to the center of the web 31.

ブラケット２と梁部材３は共に、ウェブ２１、３１がフランジ２２、２３、３２、３３の幅方向中心に関して片側に寄った位置に配置された断面形状をすることで、フランジ２２、２３、３２、３３の、ウェブ２１、３１に関して一方側の幅が他方側の幅より大きい形状になる。ここで言う一方側と他方側の「幅」はそれぞれの側のウェブ２１、３１の表面からの張り出し長さを言う。 Both the bracket 2 and the beam member 3 have a cross-sectional shape in which the webs 21, 31 are arranged at positions closer to one side with respect to the center in the width direction of the flanges 22, 23, 32, 33, so that the flanges 22, 23, 32, With respect to the webs 21 and 31, the width on one side is larger than the width on the other side. Here, the “width” on one side and the other side refers to the overhanging length from the surface of the webs 21 and 31 on the respective sides.

フランジ用継手プレート４は幅方向にボルトが複数列、配列されるよう、各フランジ２２、２３、３２、３３の幅が大きい側に重なって接合されるため、幅の小さい側の幅（張り出し長さ）は必ずしも確保される必要はなく、幅の小さい側の幅が０の場合、ブラケット２と梁部材３の断面形状はＣ形になる。以下では各フランジ２２、２３、３２、３３の内、フランジ用継手プレート４が重なって接合される側を接続部２２ａ、２３ａ、３２ａ、３３ａと言い、フランジ用継手プレート４が重ならない側を非接続部２２ｂ、２３ｂ、３２ｂ、３３ｂと言う。 Since the flange joint plate 4 is joined to the flange 22, 23, 32, 33 on the larger side so that multiple rows of bolts are arranged in the width direction, the width on the smaller side (the overhang length) Is not necessarily ensured, and when the width on the small width side is 0, the cross-sectional shapes of the bracket 2 and the beam member 3 are C-shaped. Hereinafter, of the flanges 22, 23, 32, 33, the side on which the flange joint plate 4 is overlapped and joined is referred to as a connection portion 22 a, 23 a, 32 a, 33 a, and the side on which the flange joint plate 4 does not overlap is They are referred to as connecting portions 22b, 23b, 32b, and 33b.

フランジ用継手プレート４は図３に示すようにブラケット２及び梁部材３のフランジ２２、２３、３２、３３の幅が大きい側、すなわち接続部２２ａ、２３ａ、３２ａ、３３ａの、上部フランジ２２、３２と下部フランジ２３、３３が互いに対向する面側に配置され、接続部２２ａ、２３ａ、３２ａ、３３ａにボルト６により接合される。接続部２２ａ、２３ａ、３２ａ、３３ａの、互いに対向する面はブラケット２と梁部材３の断面上、中心（内周）側であることから、以下ではブラケット２の接続部２２ａ、２３ａと、梁部材３の接続部３２ａ、３３ａの、互いに対向する面を「内周面」と言い、反対側の面を「外周面」と言う。 As shown in FIG. 3, the flange joint plate 4 has the brackets 2 and the beam members 3 on the side where the flanges 22, 23, 32, 33 are wide, that is, the upper flanges 22, 32 of the connecting portions 22a, 23a, 32a, 33a. And the lower flanges 23 and 33 are arranged on the surfaces facing each other, and are joined to the connecting portions 22a, 23a, 32a and 33a by bolts 6. Since the mutually facing surfaces of the connecting portions 22a, 23a, 32a, 33a are on the center (inner circumference) side on the cross section of the bracket 2 and the beam member 3, hereinafter, the connecting portions 22a, 23a of the bracket 2 and the beam The mutually opposing surfaces of the connecting portions 32a and 33a of the member 3 are referred to as “inner peripheral surfaces”, and the opposite surfaces are referred to as “outer peripheral surfaces”.

ウェブ２１がフランジ２２、２３の幅方向の中心に関していずれの側に寄るかは、梁３０の架設場所によって決まる。フランジ用継手プレート４はウェブ２１がフランジ２２、２３の幅方向中心に関して寄った側の反対側の内周面に接合されることから、図９に示すように梁３０が主構造体１００の屋外側の構面に重なって、あるいは接近して架設されるような場合には、フランジ用継手プレート４が屋外側から見えないようにすることに意味があるため、ウェブ２１は図１〜図３に示すようにフランジ２２、２３の幅方向の中心に関して屋外側に寄る。 Which side the web 21 approaches with respect to the center in the width direction of the flanges 22 and 23 depends on the installation location of the beam 30. The flange joint plate 4 is joined to the inner peripheral surface on the opposite side of the web 21 with respect to the center in the width direction of the flanges 22 and 23, so that the beam 30 is connected to the main structure 100 as shown in FIG. In the case where it is installed on the outer construction surface or close to it, it is meaningful to prevent the flange joint plate 4 from being seen from the outdoor side. As shown in Fig. 2, the center of the flanges 22 and 23 in the width direction approaches the outdoor side.

ウェブ用継手プレート５は図３に示すようにブラケット２及び梁部材３のウェブ２１、３１の、フランジ２２、２３、３２、３３に接合されるフランジ用継手プレート４に面する側に配置され、ウェブ２１、３１にボルト７により接合される。以下ではウェブ２１、３１の両面の内、ウェブ用継手プレート５が接合される側の面を接続面２１ａ、３１ａと言い、反対側の面を外周面と言う。接続面２１ａ、３１ａはブラケット２と梁部材３の断面上、内周面になる。 As shown in FIG. 3, the web joint plate 5 is arranged on the side of the web 21, 31 of the bracket 2 and the beam member 3 facing the flange joint plate 4 joined to the flanges 22, 23, 32, 33, The webs 21 and 31 are joined by bolts 7. Hereinafter, of the both surfaces of the webs 21 and 31, the surface on which the web joint plate 5 is joined is referred to as connection surfaces 21 a and 31 a, and the opposite surface is referred to as an outer peripheral surface. The connection surfaces 21 a and 31 a are inner peripheral surfaces on the cross section of the bracket 2 and the beam member 3.

図１〜図４はフランジ用継手プレート４をブラケット２及び梁部材３の各フランジ２２、２３、３２、３３に接合するボルト６の頭部６ａが各フランジ２２、２３、３２、３３に関してフランジ用継手プレート４の反対側（外周面側）に位置し、ウェブ用継手プレート５をブラケット２及び梁部材３の各ウェブ２１、３１に接合するボルト７の頭部７ａがウェブ２１、３１に関して接続面２１ａ、３１ａの反対側、すなわちフランジ用継手プレート４に面しない側（外周面側）に位置している場合の、フランジ用継手プレート４とウェブ用継手プレート５の接合例を示す。 1 to 4 show that the head 6 a of the bolt 6 that joins the flange joint plate 4 to the flanges 22, 23, 32, 33 of the bracket 2 and the beam member 3 is used for the flanges 22, 23, 32, 33. The head 7a of the bolt 7 which is located on the opposite side (outer peripheral surface side) of the joint plate 4 and joins the web joint plate 5 to the respective webs 21 and 31 of the bracket 2 and the beam member 3 is connected to the webs 21 and 31. An example of joining the flange joint plate 4 and the web joint plate 5 when positioned on the opposite side of the flanges 21a and 31a, that is, on the side not facing the flange joint plate 4 (outer peripheral surface side) is shown.

この例では図１、図４に示すようにフランジ用継手プレート４がブラケット２と梁部材３に跨って配置され、ブラケット２と梁部材３の接続部２２ａ、２３ａ、３２ａ、３３ａの内周面に直接、もしくは間接的に重なり、接続部２２ａ、２３ａ、３２ａ、３３ａの外周面側からボルト６の軸部６ｂが接続部２２ａ、２３ａ、３２ａ、３３ａとフランジ用継手プレート４を貫通し、軸部６ｂに内周面側からナット６１が螺合することにより接続部２２ａ、２３ａ、３２ａ、３３ａに接合される。「間接的に重なる」とは、例えばフランジ用継手プレート４と接続部２２ａ、２３ａ、３２ａ、３３ａの内周面との間にエネルギ吸収効果を発揮する粘弾性体等を介在させるようなことを言う。 In this example, as shown in FIGS. 1 and 4, the flange joint plate 4 is disposed across the bracket 2 and the beam member 3, and the inner peripheral surfaces of the connection portions 22 a, 23 a, 32 a, and 33 a of the bracket 2 and the beam member 3. Directly or indirectly overlapping, the shaft portion 6b of the bolt 6 penetrates the connection portions 22a, 23a, 32a, 33a and the flange joint plate 4 from the outer peripheral surface side of the connection portions 22a, 23a, 32a, 33a. The nut 61 is screwed into the portion 6b from the inner peripheral surface side to be joined to the connecting portions 22a, 23a, 32a, and 33a. “Indirectly overlapping” means that, for example, a viscoelastic body or the like that exhibits an energy absorption effect is interposed between the flange joint plate 4 and the inner peripheral surfaces of the connecting portions 22a, 23a, 32a, and 33a. say.

同様にウェブ用継手プレート５はブラケット２と梁部材３に跨って配置され、ブラケット２と梁部材３のウェブ２１、３１の接続面２１ａ、３１ａに直接、もしくは間接的に重なり、ウェブ２１、３１の外周面側からボルト７の軸部７ｂがウェブ２１、３１とウェブ用継手プレート５を貫通し、軸部７ｂに内周面側からナット７１が螺合することによりウェブ２１、３１に接合される。ここでも「間接的に重なる」とは、ウェブ用継手プレート５とウェブ２１、３１との間に粘弾性体等を介在させるようなことを言う。 Similarly, the web joint plate 5 is disposed across the bracket 2 and the beam member 3, and directly or indirectly overlaps the connection surfaces 21 a and 31 a of the webs 21 and 31 of the bracket 2 and the beam member 3. The shaft portion 7b of the bolt 7 penetrates the webs 21 and 31 and the web joint plate 5 from the outer peripheral surface side of the shaft, and the nut 71 is screwed to the shaft portion 7b from the inner peripheral surface side to be joined to the webs 21 and 31. The Here, “indirectly overlap” means that a viscoelastic body or the like is interposed between the web joint plate 5 and the webs 21 and 31.

接続部２２ａ、２３ａ、３２ａ、３３ａには図３、図４に示すようにボルト６の軸部６ｂが挿通する挿通孔２２ｃ、２３ｃ、３２ｃ、３３ｃが形成され、フランジ用継手プレート４にはボルト６の軸部６ｂが挿通する挿通孔４ａが形成される。ウェブ２１、３１には図１、図３に示すようにボルト７の軸部７ｂが挿通する挿通孔２１ｂ、３１ｂが形成され、ウェブ用継手プレート５にはボルト７の軸部７ｂが挿通する挿通孔５ａが形成される。図１ではウェブ用継手プレート５の断面を示すためにウェブ用継手プレート５の一部を切り欠いて示している。 The connection portions 22a, 23a, 32a, 33a are formed with insertion holes 22c, 23c, 32c, 33c through which the shaft portion 6b of the bolt 6 is inserted, as shown in FIGS. An insertion hole 4a through which the shaft portion 6b of 6 is inserted is formed. As shown in FIGS. 1 and 3, the webs 21 and 31 are formed with insertion holes 21 b and 31 b through which the shaft portion 7 b of the bolt 7 is inserted, and the web coupling plate 5 is inserted through which the shaft portion 7 b of the bolt 7 is inserted. A hole 5a is formed. In FIG. 1, in order to show the cross section of the web coupling plate 5, a part of the web coupling plate 5 is cut away.

接続部２２ａ、２３ａ、３２ａ、３３ａとフランジ用継手プレート４は前記のようにボルト６がフランジ用継手プレート４の幅方向に２列以上、配列し得るだけの幅を持つが、接続部２２ａ、２３ａ、３２ａ、３３ａはウェブ２１、３１とフランジ２２、２３、３２、３３の交差部におけるフィレット部や溶接金属部の幅を除いた区間に、ボルト６、７が２列以上、配列し得るだけの幅を持つ。フランジ用継手プレート４は接続部２２ａ、２３ａ、３２ａ、３３ａの内周面の内、フィレット部や溶接金属部の部分を除いた領域に重なる。２列以上の配列は図１、図２に示すようにボルト６、７がフランジ２２、２３の軸方向（長さ方向）に沿って千鳥状に配列する場合と、幅方向の同一線上に配列する場合がある。 The connecting portions 22a, 23a, 32a, 33a and the flange joint plate 4 have a width that allows the bolts 6 to be arranged in two or more rows in the width direction of the flange joint plate 4 as described above. 23a, 32a and 33a can be arranged in two or more rows of bolts 6 and 7 in the section excluding the width of the fillet part and weld metal part at the intersection of the webs 21 and 31 and the flanges 22, 23, 32 and 33. With a width of The flange joint plate 4 overlaps the region of the inner peripheral surface of the connecting portions 22a, 23a, 32a, and 33a excluding the fillet portion and the weld metal portion. 1 and 2, the bolts 6 and 7 are arranged in a zigzag pattern along the axial direction (length direction) of the flanges 22 and 23 as shown in FIGS. There is a case.

図１〜図４の例では図１、図２に示すようにブラケット２と梁部材３の外周面側にボルト６、７の頭部６ａ、７ａが露出するが、外周面側にはフランジ用継手プレート４とウェブ用継手プレート５自体の露出は生じないため、これらの継手プレート４、５が露出することによる梁３０の外観への影響は軽減されている。図１〜図４では特にボルト６、７として球面状の頭部を持つトルシア型のボルトを使用することで、露出による頭部の存在感を軽減し、頭部を目立たなくさせている。 1 to 4, the heads 6a and 7a of the bolts 6 and 7 are exposed on the outer peripheral surface side of the bracket 2 and the beam member 3 as shown in FIGS. Since the joint plate 4 and the web joint plate 5 are not exposed, the influence on the appearance of the beam 30 due to the exposure of the joint plates 4 and 5 is reduced. In FIGS. 1 to 4, the presence of the head due to exposure is reduced by using a Torcia-type bolt having a spherical head as the bolts 6 and 7, thereby making the head inconspicuous.

図５〜図８はフランジ用継手プレート４をブラケット２及び梁部材３の各フランジ２２、２３、３２、３３に接合するボルト６の頭部６ａ、もしくは軸部６ｂがブラケット２及び梁部材３の各フランジ２２、２３、３２、３３の幅が大きい側（接続部２２ａ、２３ａ、３２ａ、３３ａ）の、互いに対向する面（内周面）側に配置された状態でその面に直接、もしくは間接的に固定された場合の、フランジ用継手プレート４とウェブ用継手プレート５の接合例を示す。ウェブ用継手プレート５をブラケット２及び梁部材３の各ウェブ２１、３１に接合するボルト７の頭部７ａ、もしくは軸部７ｂはブラケット２及び梁部材３の各ウェブ２１、３１の、フランジ用継手プレート４に面する側（接続面２１ａ、３１ａ側）に配置された状態でその面に直接、もしくは間接的に固定される。 5 to 8, the head 6 a of the bolt 6 that joins the flange joint plate 4 to each flange 22, 23, 32, 33 of the bracket 2 and the beam member 3, or the shaft portion 6 b of the bracket 2 and the beam member 3. Directly or indirectly on the surface of each flange 22, 23, 32, 33 arranged on the surface (inner peripheral surface) facing each other on the side where the width is large (connection portion 22 a, 23 a, 32 a, 33 a) The example of joining of the joint plate 4 for flanges and the joint plate 5 for webs in the case of being fixed in a fixed manner is shown. The head 7a of the bolt 7 that joins the web joint plate 5 to the webs 21 and 31 of the bracket 2 and the beam member 3, or the shaft part 7b is a joint for flanges of the webs 21 and 31 of the bracket 2 and the beam member 3. It is directly or indirectly fixed to the surface in a state of being disposed on the side facing the plate 4 (on the connection surfaces 21a and 31a side).

図５〜図８に示す例では図示しないが、ボルト６の頭部６ａ、または頭部６ａを不在にした形状のボルト６の軸部６ｂの一端部を接続部２２ａ、２３ａ、３２ａ、３３ａの内周面に直接、溶接すると共に、フランジ用継手プレート４の内周面側に頭部６ａ、または軸部６ｂが納まる溝を形成し、このフランジ用継手プレート４の溝に頭部６ａ、または軸部６ｂを納めることで、フランジ用継手プレート４を接続部２２ａ、２３ａ、３２ａ、３３ａの内周面に直接、密着させた状態で接続部２２ａ、２３ａ、３２ａ、３３ａに溶接等により接合することも可能である。 Although not shown in the examples shown in FIGS. 5 to 8, the head portion 6 a of the bolt 6 or one end portion of the shaft portion 6 b of the bolt 6 having the head portion 6 a absent is connected to the connection portions 22 a, 23 a, 32 a, 33 a. While directly welding on the inner peripheral surface, a groove is formed on the inner peripheral surface side of the flange joint plate 4 so that the head portion 6a or the shaft portion 6b can be accommodated, and the head portion 6a or By fitting the shaft portion 6b, the flange joint plate 4 is joined to the connection portions 22a, 23a, 32a, 33a by welding or the like in a state of being in direct contact with the inner peripheral surfaces of the connection portions 22a, 23a, 32a, 33a. It is also possible.

但し、その場合、ブラケット２と梁部材３への各ボルト６の溶接作業を現場で行う場合に作業が煩雑化することから、図面では接続部２２ａ、２３ａ、３２ａ、３３ａの内周面に間接的にボルト６の頭部６ａ等を固定するためのフランジ固定板８を用いることで、予め工場でボルト６をフランジ固定板８に固定しておくことを可能にし、現場で各ボルト６を個別に溶接する作業を不要にし、現場作業の煩雑さを解消している。フランジ固定板８は図８に示すようにブラケット２と梁部材３のフランジ２２、２３、３２、３３単位でその内周面に固定され、ブラケット２と梁部材３には跨がらないため、予め、または現場で接続部２２ａ、２３ａ、３２ａ、３３ａの内周面に溶接等により固定される。溶接による場合、フランジ固定板８は図７、図８に示すように周辺部分において溶接される。 However, in this case, the work becomes complicated when welding the bolts 6 to the bracket 2 and the beam member 3 at the site, so in the drawings, the inner surfaces of the connecting portions 22a, 23a, 32a, and 33a are indirectly connected. In addition, by using the flange fixing plate 8 for fixing the head 6a of the bolt 6 and the like, it is possible to fix the bolt 6 to the flange fixing plate 8 in advance at the factory, and each bolt 6 individually on site This eliminates the need for welding work and eliminates the complexity of field work. As shown in FIG. 8, the flange fixing plate 8 is fixed to the inner peripheral surface of the bracket 2 and the beam member 3 in units of the flanges 22, 23, 32 and 33, and does not straddle the bracket 2 and the beam member 3. Or, it is fixed to the inner peripheral surfaces of the connecting portions 22a, 23a, 32a, 33a by welding or the like at the site. In the case of welding, the flange fixing plate 8 is welded at the peripheral portion as shown in FIGS.

同様にウェブ２１、３１においてはボルト７の頭部７ａ、もしくは軸部７ｂの一端部をウェブ２１、３１の接続面２１ａ、３１ａに直接、溶接すると共に、ウェブ用継手プレート５の内周面側に頭部７ａ、もしくは軸部７ｂが納まる溝を形成し、ウェブ用継手プレート５の溝に頭部７ａ、もしくは軸部７ｂを納めることで、ウェブ用継手プレート５を接続面２１ａ、３１ａに直接、密着させた状態で接続面２１ａ、３１ａに接合することも可能である。 Similarly, in the webs 21 and 31, the head 7a of the bolt 7 or one end of the shaft 7b is directly welded to the connection surfaces 21a and 31a of the webs 21 and 31, and the inner peripheral surface side of the web coupling plate 5 is used. Is formed in the groove for accommodating the head portion 7a or the shaft portion 7b and the head portion 7a or the shaft portion 7b is accommodated in the groove of the web coupling plate 5 so that the web coupling plate 5 is directly connected to the connection surfaces 21a and 31a. It is also possible to join the connection surfaces 21a and 31a in a state of being in close contact with each other.

但し、図面では現場で各ボルト７を個別に溶接する作業を不要にするために、接続面２１ａ、３１ａに間接的にボルト７の頭部７ａ等を固定するためのウェブ固定板９を接続面２１ａ、３１ａに溶接等により固定している。ウェブ固定板９もフランジ固定板８と同様、ブラケット２と梁部材３のウェブ２１、３１単位でその内周面に固定され、ブラケット２と梁部材３には跨がらないため、予め、または現場でウェブ２１、３１の接続面２１ａ、３１ａに溶接等により固定される。溶接による場合、ウェブ固定板９は図７、図８に示すように周辺部分において溶接される。図５ではウェブ用継手プレート５とウェブ固定板９の断面を示すためにウェブ用継手プレート５とウェブ固定板９の一部を切り欠いて示している。 However, in the drawing, the web fixing plate 9 for fixing the head 7a of the bolt 7 indirectly to the connection surfaces 21a, 31a is connected to the connection surface in order to eliminate the need to individually weld each bolt 7 on site. It is fixed to 21a, 31a by welding or the like. Similarly to the flange fixing plate 8, the web fixing plate 9 is fixed to the inner peripheral surface in units of the webs 21 and 31 of the bracket 2 and the beam member 3, and does not straddle the bracket 2 and the beam member 3. The webs 21 and 31 are fixed to the connection surfaces 21a and 31a by welding or the like. In the case of welding, the web fixing plate 9 is welded at the peripheral portion as shown in FIGS. In FIG. 5, in order to show a cross section of the web joint plate 5 and the web fixing plate 9, the web joint plate 5 and the web fixing plate 9 are partially cut away.

フランジ固定板８とウェブ固定板９を使用する場合、図７、図８に示すようにフランジ固定板８の接続部２２ａ、２３ａ、３２ａ、３３ａ側の面からはボルト６の頭部６ａ、もしくは軸部６ｂが納まる溝８ａが形成され、ウェブ固定板９の接続面２１ａ、３１ａ側の面からはボルト７の頭部７ａ、もしくは軸部７ｂが納まる溝９ａが形成される。 When the flange fixing plate 8 and the web fixing plate 9 are used, as shown in FIGS. 7 and 8, from the surface of the flange fixing plate 8 on the side of the connecting portions 22a, 23a, 32a, 33a, the head 6a of the bolt 6 or A groove 8a for accommodating the shaft portion 6b is formed, and a head portion 7a of the bolt 7 or a groove 9a for accommodating the shaft portion 7b is formed from the surface on the connection surface 21a, 31a side of the web fixing plate 9.

溝８ａ、９ａ内にボルト６、７の頭部６ａ、７ａが納まる場合、頭部６ａ、７ａが溝８ａ、９からウェブ２１、３１側へ突出しないよう、溝８ａ、９ａの深さは頭部６ａ、７ａの高さ以上の寸法が与えられる。図面ではナット６１、７１の軸部６ｂ、７ｂへの螺合による軸力の反力が頭部６ａ、７ａの座面からフランジ固定板８とウェブ固定板９に伝達されるよう、溝８ａ、９ａを段差のある形状に形成しているが、頭部６ａ、７ａが溝８ａ、９ａに溶接される場合には、頭部６ａ、７ａのみが納まる深さを持てばよい。 When the heads 6a and 7a of the bolts 6 and 7 are accommodated in the grooves 8a and 9a, the depths of the grooves 8a and 9a are set so that the heads 6a and 7a do not protrude from the grooves 8a and 9 toward the webs 21 and 31. The dimension more than the height of the parts 6a and 7a is given. In the drawing, the groove 8a, the reaction force of the axial force due to the screwing of the nuts 61, 71 to the shaft portions 6b, 7b is transmitted from the seating surface of the heads 6a, 7a to the flange fixing plate 8 and the web fixing plate 9. Although 9a is formed in the shape with a level | step difference, when head 6a, 7a is welded to groove | channel 8a, 9a, it should just have the depth which only head 6a, 7a can be accommodated.

ボルト６の頭部６ａ、もしくは軸部６ｂは原則的にはフランジ固定板８の溝８ａに溶接等により固定され、ボルト７の頭部７ａ、もしくは軸部７ｂはウェブ固定板９の溝９ａに溶接等により固定される。但し、溝８ａ、９ａ内にボルト６、７の頭部６ａ、７ａが納まる場合に、フランジ固定板８とウェブ固定板９にそれぞれフランジ用継手プレート４とウェブ用継手プレート５を接合するために軸部６ｂ、７ｂにナット６１、７１を螺合するときに頭部６ａ、７ａが溝８ａ、９ａ内で回転しない状態に保たれるような場合には、必ずしも頭部６ａ、７ａを溝８ａ、９ａに溶接する必要はない。 The head portion 6a or the shaft portion 6b of the bolt 6 is basically fixed to the groove 8a of the flange fixing plate 8 by welding or the like, and the head portion 7a or the shaft portion 7b of the bolt 7 is fixed to the groove 9a of the web fixing plate 9. It is fixed by welding or the like. However, when the heads 6a and 7a of the bolts 6 and 7 are accommodated in the grooves 8a and 9a, in order to join the flange joint plate 4 and the web joint plate 5 to the flange fixing plate 8 and the web fixing plate 9, respectively. When the heads 6a and 7a are kept in the state of not rotating in the grooves 8a and 9a when the nuts 61 and 71 are screwed into the shaft parts 6b and 7b, the heads 6a and 7a are not necessarily in the groove 8a. , 9a need not be welded.

図１、図２、図５、図６ではブラケット２と梁部材３の各フランジ２１、２２、３２、３３の内、フランジ用継手プレート４が設置されない側の各非接続部２２ｂ、２３ｂ、３２ｂ、３３ｂの、軸方向に対向する側の縁寄りの部分（隅角部）を切り欠いている。非接続部２２ｂ、２３ｂ、３２ｂ、３３ｂはフランジ用継手プレート４によっては互いに接合されないため、軸方向に対向する側の縁部分はフランジ用継手プレート４に板厚方向に拘束されることがない。この関係で、ブラケット２と梁部材３の互いに対向する側の縁部分に鉛直方向にずれが生じ、このずれが残されている可能性がある。このときに、ブラケット２と梁部材３の継ぎ目における屋外側からの見栄えが低下するため、ずれによる外観上の影響を回避する意味で、隅角部を切り欠いている。 1, 2, 5, and 6, the non-connection portions 22 b, 23 b, and 32 b on the side where the flange joint plate 4 is not installed among the flanges 21, 22, 32, and 33 of the bracket 2 and the beam member 3. , 33b, a portion (corner portion) near the edge on the side facing in the axial direction is cut away. Since the non-connecting portions 22b, 23b, 32b, and 33b are not joined to each other by the flange joint plate 4, the edge portion on the side facing the axial direction is not restrained by the flange joint plate 4 in the plate thickness direction. In this relationship, there is a possibility that a deviation occurs in the vertical direction at the edge portions of the bracket 2 and the beam member 3 facing each other, and this deviation may remain. At this time, since the appearance from the outdoor side at the joint of the bracket 2 and the beam member 3 is lowered, the corner portion is cut out in order to avoid the influence on the appearance due to the shift.

図９は図１〜図８に示す柱１と、ブラケット２及び梁部材３からなる梁３０が構成する補強架構１０を既存、もしくは新設の構造物等の主構造体１００の屋外側の構面に沿って構築した様子を示す。補強架構１０は主構造体１００の屋外側の構面に平行に構築され、その構面内水平方向に互いに間隔を隔てて配列し、鉛直方向に複数本の支柱材１１ａ〜１１ｃに分離した、柱１に相当する支柱１１と、上下に分離した支柱材１１ａ、１１ｂ（１１ｂ、１１ｃ）間に介在し、両者間の相対水平移動を許容する積層ゴム支承等の絶縁装置１２と、同一レベルで隣接する支柱材１１ａ、１１ａ（１１ｂ、１１ｂ）間に水平に架設され、両支柱材１１ａ、１１ａを互いにつなぐつなぎ梁としての梁３０と、主構造体１００の構面内の支柱材１１ａ、１１ｂ間に架設されるダンパー一体型ブレース（以下、ブレース）１３から構成される。「構面内水平方向」は主構造体１００の桁行方向を指し、構面外方向は主構造体１００のスパン方向を指す。図９中の破線円で囲った範囲が図１、図２、図５、図６に示すブラケット２と梁部材３と継手部分を示す。 FIG. 9 shows the outdoor side surface of the main structure 100 such as an existing or new structure including the reinforcing frame 10 formed by the pillar 1 shown in FIGS. 1 to 8 and the beam 30 including the bracket 2 and the beam member 3. It shows how it was built along. The reinforcing frame 10 is constructed in parallel to the outdoor structural surface of the main structure 100, arranged in the horizontal direction in the structural surface with a space between each other, and separated into a plurality of support members 11a to 11c in the vertical direction. At the same level as the supporting device 11 corresponding to the pillar 1 and the insulating device 12 such as a laminated rubber bearing, which is interposed between the supporting members 11a and 11b (11b and 11c) separated vertically, and allows relative horizontal movement between them. A beam 30 is installed between the adjacent support members 11a and 11a (11b and 11b) and connects the support members 11a and 11a to each other, and the support members 11a and 11b in the surface of the main structure 100. It is composed of a damper-integrated brace (hereinafter referred to as a brace) 13 installed between them. The “horizontal direction within the composition plane” refers to the direction of the main structure 100 in the direction of the rows, and the direction outside the composition plane refers to the span direction of the main structure 100. A range surrounded by a broken-line circle in FIG. 9 indicates the bracket 2, the beam member 3, and the joint portion illustrated in FIGS. 1, 2, 5, and 6.

補強架構１０の支柱１１は最下部に位置する支柱材１１ａとその上に位置する上部の支柱材１１ｂの、計２本の支柱材からなる場合と、図１０に示すように最下部の支柱材１１ａとその上に位置する２本以上の上部の支柱材１１ｂ、１１ｃの、計３本以上の支柱材からなる場合があり、上下に隣接する支柱材１１ａ、１１ｂ（１１ｂ、１１ｃ）間に絶縁装置１２が介在させられる。絶縁装置１２はそれが跨る支柱材１１ａ、１１ｂ（１１ｂ、１１ｃ）間の水平方向の相対移動を許容しながら、相対移動後に支柱材１１ａ、１１ｂ（１１ｂ、１１ｃ）を相対移動前の状態に復帰させる状態（復元可能）に接合される。絶縁装置１２として積層ゴム支承が使用される場合は、積層ゴム支承が復元装置を兼ね、積層ゴム支承以外の支承が使用される場合は、ばね等の復元装置が伴われる。 The column 11 of the reinforcing frame 10 is composed of a total of two column members, a column material 11a positioned at the bottom and an upper column material 11b positioned above it, and the column material at the bottom as shown in FIG. 11a and two or more upper struts 11b and 11c located above it may be composed of a total of three or more struts, insulating between the vertically adjacent struts 11a and 11b (11b and 11c) A device 12 is interposed. The insulating device 12 returns the strut materials 11a, 11b (11b, 11c) to the state before the relative movement after the relative movement while allowing the relative movement in the horizontal direction between the strut materials 11a, 11b (11b, 11c) on which the insulating device 12 is straddled. It is joined to the state (can be restored). When a laminated rubber bearing is used as the insulating device 12, the laminated rubber bearing also serves as a restoring device, and when a bearing other than the laminated rubber bearing is used, a restoring device such as a spring is accompanied.

ブレース１３は支柱１１、１１（柱１、１）と梁３０、３０からなる架構（フレーム）内に、水平と鉛直に対して傾斜して架設されるため、ブレース１３の一端部は例えば図９、図１０に示すように構面内水平方向に隣接する支柱材１１ａ、１１ａ（１１ｂ、１１ｂ）の内、一方の支柱材１１ａ（１１ｂ）、もしくはその支柱材１１ａ（１１ｂ）寄りの梁３０に接続（連結）され、他端部は他方の支柱材１１ｂ（１１ａ）の直下、または直上の支柱材１１ｂ（１１ａ）、もしくはその支柱材１１ｂ（１１ａ）寄りの梁３０に接続（連結）される。 The brace 13 is installed in a frame (frame) composed of the columns 11 and 11 (columns 1 and 1) and the beams 30 and 30 while being inclined with respect to the horizontal and vertical directions. As shown in FIG. 10, one of the strut members 11a, 11a (11b, 11b) adjacent in the horizontal direction in the surface of the composition is attached to one strut member 11a (11b) or the beam 30 near the strut member 11a (11b). The other end is connected (linked) to the column material 11b (11a) directly below or directly above the other column material 11b (11a) or to the beam 30 near the column material 11b (11a). .

図１０に示すように１本の支柱１１が３本以上の支柱材１１ａ、１１ｂ、１１ｃからなる場合は、ブレース１３の架設層が２層以上に亘ることから、最下層のブレース１３の一端部は２本の場合と同じく最下部の支柱材１１ａや梁３０に接続され、他端部は水平方向に隣接する最下部の支柱材１１ａの直上の支柱材１１ｂや梁３０に接続される。その直上層のブレース１３の一端部は最下部の支柱材１１ａの直上の支柱材１１ｂや梁３０に接続され、他端はその支柱材１１ｂに隣接する支柱材１１ｂの直上の支柱材１１ｃや梁３０に接続される。 As shown in FIG. 10, in the case where one column 11 is composed of three or more column members 11a, 11b, and 11c, since the construction layer of the brace 13 extends over two layers, one end of the lowermost brace 13 is provided. Is connected to the lowermost support member 11a and the beam 30 as in the case of two, and the other end is connected to the support member 11b and the beam 30 directly above the lowermost support member 11a adjacent in the horizontal direction. One end portion of the brace 13 in the immediately upper layer is connected to the support material 11b and the beam 30 directly above the lowermost support material 11a, and the other end is connected to the support material 11c and the beam immediately above the support material 11b adjacent to the support material 11b. 30.

ブレース１３は互いに軸方向に相対移動自在なブレース本体１３１、１３１と、一方のブレース本体１３１に内蔵され、他方のブレース本体１３１に接続されるダンパー１３２からなり、ブレース本体１３１、１３１の端部に一体化したブラケットにおいて、例えば補強架構１０の支柱１１や梁３０に接合されたベースプレート等に一体化したガセットプレートに連結される。ブレース１３はブレース本体１３１、１３１がその両端間に作用する圧縮力と引張力によって相対移動するときにダンパー１３２が減衰力を発生することにより補強架構１０の揺れを抑制する。ダンパー１３２にはオイルダンパー（油圧シリンダ）等の粘性流体を用いたダンパーが使用される。 The brace 13 is composed of brace bodies 131 and 131 that are axially movable relative to each other and a damper 132 that is built into one brace body 131 and connected to the other brace body 131. In the integrated bracket, for example, it is connected to a gusset plate integrated with a support plate 11 of the reinforcing frame 10 or a base plate joined to the beam 30. The brace 13 suppresses the vibration of the reinforcing frame 10 by the damper 132 generating a damping force when the brace bodies 131 and 131 move relative to each other by a compressive force and a tensile force acting between both ends thereof. A damper using a viscous fluid such as an oil damper (hydraulic cylinder) is used for the damper 132.

補強架構１０は主構造体１００の構面外に、主構造体１００に接する形で構築される場合と、構面から距離を置いて構築される場合があるが、距離を置く場合は、補強架構１０の梁３０が接合される主構造体１００のいずれかの部位（スラブ等）と梁３０との間で十分な水平せん断力の伝達が行われる程度の距離に抑えられる。梁３０は前記の通り、隣接する支柱材１１ａ、１１ａ間に架設されながら、主構造体１００のスラブ等、いずれかの部位に接合されることにより主構造体１００と補強架構１０を一体構造化し、主構造体１００の層間変形時に水平せん断力を補強架構１０に伝達しながら、主構造体１００の層間変形に補強架構１０を追従させる。梁３０は水平せん断力の補強架構１０への伝達時に主に軸方向力と構面内方向の曲げモーメントとせん断力を負担する。 The reinforcing frame 10 may be constructed outside the main structure 100 in contact with the main structure 100 or at a distance from the composition surface. The distance is such that a sufficient horizontal shearing force is transmitted between the beam 30 and any portion (slab or the like) of the main structure 100 to which the beam 30 of the frame 10 is joined. As described above, the beam 30 is constructed between the adjacent strut members 11a and 11a, and is joined to any part such as a slab of the main structure 100 to thereby integrally form the main structure 100 and the reinforcing frame 10. The reinforcement frame 10 is caused to follow the interlayer deformation of the main structure 100 while transmitting a horizontal shearing force to the reinforcement frame 10 during the interlayer deformation of the main structure 100. The beam 30 bears mainly an axial force, a bending moment in the in-plane direction, and a shearing force when a horizontal shearing force is transmitted to the reinforcing frame 10.

１……柱、
２……ブラケット、
２１……ウェブ、２１ａ……接続面、２１ｂ……挿通孔、
２２……上部フランジ、２２ａ……接続部、２２ｂ……非接続部、２２ｃ……挿通孔、
２３……下部フランジ、２３ａ……接続部、２３ｂ……非接続部、２３ｃ……挿通孔、
３……梁部材、３０……梁、
３１……ウェブ、３１ａ……接続面、３１ｂ……挿通孔、
３２……上部フランジ、３２ａ……接続部、３２ｂ……非接続部、３２ｃ……挿通孔、
３３……下部フランジ、３３ａ……接続部、３３ｂ……非接続部、３３ｃ……挿通孔、
４……フランジ用継手プレート、４ａ……挿通孔、
５……ウェブ用継手プレート、５ａ……挿通孔、
６……ボルト（フランジ用継手プレート用）、６ａ……頭部、６ｂ……軸部、６１……ナット、
７……ボルト（ウェブ用継手プレート用）、７ａ……頭部、７ｂ……軸部、７１……ナット、
８……フランジ固定板、８ａ……溝、
９……ウェブ固定板、９ａ……溝、
１０……補強架構、
１１……支柱、１１ａ〜１１ｃ……支柱材、
１２……絶縁装置、
１３……ダンパー一体型ブレース、１３１……ブレース本体、１３２……ダンパー、
１００……主構造体。
1 ... Pillar,
2 ... Bracket,
21 …… Web, 21a …… Connection surface, 21b …… Insertion hole,
22 …… Upper flange, 22a …… Connecting portion, 22b …… Non-connecting portion, 22c …… Insertion hole,
23 …… Lower flange, 23a …… Connecting portion, 23b …… Non-connecting portion, 23c …… Through hole,
3 ... Beam member, 30 ... Beam,
31 ... Web, 31a ... Connection surface, 31b ... Insertion hole,
32... Upper flange, 32 a .. Connection portion, 32 b .. Non-connection portion, 32 c .. Insertion hole,
33 …… Lower flange, 33a …… Connecting portion, 33b …… Non-connecting portion, 33c …… Insertion hole,
4 ... Flange joint plate, 4a ... Insertion hole,
5 ... Web coupling plate, 5a ... Insertion hole,
6 ... Bolt (for flange joint plate), 6a ... Head, 6b ... Shaft, 61 ... Nut,
7: Bolt (for web joint plate), 7a: Head, 7b: Shaft, 71: Nut,
8: Flange fixing plate, 8a: Groove,
9: Web fixing plate, 9a: Groove,
10 …… Reinforcement frame,
11... Support, 11a to 11c.
12 …… Insulation device,
13 …… Damper integrated brace, 131 …… Brace body, 132 …… Damper,
100: Main structure.

Claims

A steel bracket having a web and a flange joined to a column, and a joint for a flange straddling the steel beam member having a web and a flange having the same cross section as that of the bracket, but being joined to the bracket. It is a joint structure joined using a plate and a joint plate for web,
Both the bracket and the beam member have a cross-sectional shape in which the web is closer to one side in the width direction than the center in the width direction of the flange, and the widths on both sides in the width direction of the flanges are different with respect to the center of the web.
The flange joint plate is disposed on the opposite side of the bracket and the beam member on the side where the width of the flange is large,
The web joint plate is disposed on a side of the web of the bracket and the beam member facing the flange joint plate,
The flange joint plate is joined to the bracket and the flange of the beam member by a bolt, and the web joint plate is joined to the bracket and the web of the beam member by a bolt. Joint structure.

The head portion of the bolt that joins the flange joint plate to the flange of the bracket and the beam member is located on the opposite side of the flange joint plate with respect to the flange,
The head of the said bolt which joins the said joint plate for webs to each said web of the said bracket and the said beam member is located in the side which does not face the said joint plate for flanges with respect to the said web. The joint structure of the beam described in 1.

The heads or shafts of the bolts that join the flange joint plates to the flanges of the bracket and the beam member are surfaces facing each other on the side where the flanges of the bracket and the beam member are wide. Fixed directly or indirectly to the surface in a state of being placed on the side,
The heads or shafts of the bolts that join the web joint plates to the webs of the brackets and the beam members are the sides of the webs of the brackets and the beam members facing the flange joint plates. The beam joint structure according to claim 1, wherein the beam joint structure is fixed directly or indirectly to the surface in a state where the beam is disposed.

The flange fixing plate having a groove in which the head of the bolt or the shaft portion is accommodated on the surface of the flange on the side where the joint plate for the flange is disposed is a state in which the head of the bolt or the shaft portion is accommodated. The web fixing plate having a groove in which the head portion of the bolt or the shaft portion is accommodated on the surface of the web on which the web joint plate is disposed is the head portion of the bolt or the shaft portion. The beam joint structure according to claim 3, wherein the beam joint structure is fixed in a state of being accommodated.