JP2018145594A - Reinforcing method for column-to-beam joint using folded bars and controlling method for yield hinge position - Google Patents

Reinforcing method for column-to-beam joint using folded bars and controlling method for yield hinge position Download PDF

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JP2018145594A
JP2018145594A JP2017038160A JP2017038160A JP2018145594A JP 2018145594 A JP2018145594 A JP 2018145594A JP 2017038160 A JP2017038160 A JP 2017038160A JP 2017038160 A JP2017038160 A JP 2017038160A JP 2018145594 A JP2018145594 A JP 2018145594A
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column
reinforcing
bent
bending
joint
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JP7045135B2 (en
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行孝 太田
Yukitaka Ota
行孝 太田
信之 和泉
Nobuyuki Izumi
信之 和泉
濱田　聡
Satoshi Hamada
聡 濱田
繁美 菊田
Shigemi Kikuta
繁美 菊田
啓之 竹中
Hiroyuki Takenaka
啓之 竹中
拓 石岡
Taku Ishioka
拓 石岡
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Toda Corp
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Toda Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing method for a column-to-beam joint using folded bars capable of solving a problem in a conventional reinforcing method in which the folded bars are added but bond splitting tends to occur.SOLUTION: A reinforcing method for a column-to-beam joint uses a plurality of folded bars 1, 2 each of which includes: both ends 1a and 2a of the folded bars arranged along a longitudinal bar of a beam 5; and central parts 1c, 2c of the folded bars each of which is bent at an end face at a beam side of the column-to-beam joint 7 and extends obliquely. The plurality of folded bars 1, 2 are arranged between the beam 5 and the column-to-beam joint 7.SELECTED DRAWING: Figure 1

Description

本発明は、折曲げ鉄筋による柱梁接合部の補強方法と、降伏ヒンジ位置の制御方法に用いる折曲げ鉄筋に関するものである。   The present invention relates to a bending reinforcing bar used for a method for reinforcing a column beam joint with a bending reinforcing bar and a method for controlling a yield hinge position.

従来、鉄筋コンクリート造梁部材の地震時に発生する降伏ヒンジを、図８に示すように、柱面から離した位置に発生するよう（支持スパンを実質的に短くすること）、梁端部主筋量を追加して制御し、早期にエネルギーを吸収させることで、合理的な設計を行う設計手法が知られている。   Conventionally, as shown in Fig. 8, the yield hinge generated during an earthquake of a reinforced concrete beam member is generated at a position away from the column surface (the support span is substantially shortened). There is a known design method for rational design by additionally controlling and absorbing energy at an early stage.

前記設計手法として、梁端部主筋量を追加する方法があるが、それは主にカットオフされた鉄筋を梁と平行に追加配筋することである。柱梁接合部において追加鉄筋を折り曲げて配筋することで降伏ヒンジ位置を制御する先行技術文献は見当たらないが、柱梁接合部の構造に関する先行技術として、特許文献１に記載されたものが知られている。   As the design method, there is a method of adding the beam end principal reinforcement amount, which is mainly to additionally arrange a cut-off reinforcing bar in parallel with the beam. Although there is no prior art document for controlling the yield hinge position by bending and arranging additional reinforcing bars at the beam-column joint, the prior art related to the structure of the beam-column joint is known. It has been.

特開２０１０−１８５２３１号公報JP 2010-185231 A

しかしながら、前記追加鉄筋の配筋において、施工性の向上のため、追加鉄筋の先端に機械式定着などを用いることで、追加鉄筋長さの縮小化を図る場合があるが、カットオフされた追加鉄筋では大梁に付着割裂が生じやすいという課題がある。本発明は、このような課題を解決するために提案されたものである。   However, in order to improve the workability of the additional reinforcing bars, the length of the additional reinforcing bars may be reduced by using a mechanical anchor at the tip of the additional reinforcing bars. Reinforcing bars have a problem that bond splitting is likely to occur in large beams. The present invention has been proposed to solve such problems.

本発明に係る折曲げ鉄筋による柱梁接合部の補強方法の上記課題を解決して目的を達成するための要旨は、梁の主筋に沿って配筋される折曲げ鉄筋の両端部と、柱梁接合部の梁側の両端面から斜めに屈曲されている折曲げ鉄筋の中央部とでなる折曲げ鉄筋が、梁と柱梁接合部とに渡って配筋されていることである。   The gist for achieving the object by solving the above-described problem of the method of reinforcing a column-beam joint by a bent rebar according to the present invention is to provide both ends of a bent rebar arranged along the main bar of the beam, and a column. That is, the bending reinforcing bars formed by the central part of the bending reinforcing bars that are bent obliquely from both end surfaces on the beam side of the beam connecting portion are arranged over the beam and the column beam connecting portion.

前記折り曲げ鉄筋の両端部が、梁の上下方向の中心に向かって屈曲されたフック付きであることである。   Both ends of the bent reinforcing bars are provided with hooks bent toward the center in the vertical direction of the beam.

前記梁と柱との主筋に沿って配筋される折曲げ鉄筋の両端部と、前記柱梁接合部の梁側の両端面から斜めに屈曲されている折曲げ鉄筋の中央部とでなる折曲げ鉄筋が、梁と柱梁接合部とに渡って配筋されていることである。   Folding consisting of both ends of the bending rebars arranged along the main bars of the beam and the column, and the center part of the bending rebars that are bent obliquely from both end surfaces on the beam side of the column-beam joint. The bending rebar is arranged over the beam and the column beam joint.

前記梁の主筋に配筋される折曲げ鉄筋の少なくとも一端部が、梁側主筋の１段筋若しくは２段筋の位置に配筋されていることである。   That is, at least one end portion of the bending reinforcing bar arranged in the main reinforcing bar of the beam is arranged at the position of the first or second reinforcing bar of the beam side main reinforcing bar.

前記折曲げ鉄筋における斜めに屈曲された部分が交差する箇所に、平板状の補強部材が固着されていることを含むものである。   This includes that a flat reinforcing member is fixed at a location where the obliquely bent portions of the bent reinforcing bars intersect.

本発明に係る折り曲げ鉄筋による降伏ヒンジ位置の制御方法の上記課題を解決して目的を達成するための要旨は、上記記載の柱梁接合部の補強方法により、梁における降伏ヒンジの位置を制御することである。   The gist of the present invention for solving the above-mentioned problem of the method for controlling the yield hinge position by the bending rebar according to the present invention is to control the position of the yield hinge in the beam by the reinforcing method of the column beam joint described above. That is.

本発明の折り曲げ鉄筋による柱梁接合部の補強方法と降伏ヒンジ位置の制御方法とによれば、梁の降伏ヒンジ位置を制御し、柱梁接合部の損傷制御に寄与するとともに、追加鉄筋の付着性能が向上し、梁の損傷低減を図ると言う優れた効果を奏するものである。また、折曲げ鉄筋が柱梁接合部に生じるせん断力の一部を負担することにより、柱梁接合部強度の向上を図ることができる。折り曲げ鉄筋部分の交差部において平板状の補強部材を固着することで、平面的な納まりの向上を図ることができる。   According to the method of reinforcing a beam-column joint with a bent rebar and a method for controlling the yield hinge position of the present invention, the yield hinge position of the beam is controlled, contributing to the damage control of the beam-column joint and the attachment of the additional rebar. The performance is improved and the excellent effect of reducing damage to the beam is achieved. Moreover, the bending beam reinforcement bears a part of the shearing force generated in the beam-column joint portion, so that the strength of the beam-column joint portion can be improved. By fixing the flat reinforcing member at the intersection of the bent reinforcing bar portions, the flat accommodation can be improved.

本発明に係る曲げ鉄筋による柱梁接合部の補強方法の実施例を示す縦断面図（Ａ）、折り曲げ鉄筋１，２の側面図（Ｂ）である。It is the longitudinal cross-sectional view (A) which shows the Example of the reinforcement method of the column beam junction part by the bending rebar which concerns on this invention, and the side view (B) of the bending rebars 1 and 2. FIG. 同折曲げ鉄筋１，２を、図１に示す主筋に係る１段筋５ａの位置に合わせた配置にした実施例を示す縦断面図である。It is the longitudinal cross-sectional view which shows the Example which set the arrangement | positioning according to the position of the 1st step reinforcement 5a which concerns on the main reinforcement shown in FIG. 同本発明に係る折曲げ鉄筋１，２を、その端部にフック部を形成した実施例の縦断面図（Ａ）、同折曲げ筋１，２を主筋にかかる１段筋５ａの位置に配置した実施例を示す縦断面図（Ｂ）である。A vertical cross-sectional view (A) of an embodiment in which the bent rebars 1 and 2 according to the present invention are formed with hook portions at the ends thereof, and the bent rebars 1 and 2 are located at the position of the first step reinforcing bar 5a on the main rebar. It is a longitudinal cross-sectional view (B) which shows the Example arrange | positioned. 本発明に係る柱梁接合部の補強方法の他の実施例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the other Example of the reinforcement method of the column beam junction part which concerns on this invention. 同図４に示す他の実施例に係る折曲げ鉄筋１〜４を使用状態の配置にして示す側面図（Ａ），（Ｂ）である。It is a side view (A) and (B) which show the arrangement | positioning of the bending reinforcement bars 1-4 which concern on the other Example shown in the same FIG. 4 in use condition. 本発明に係る折曲げ鉄筋による柱梁接合部の補強方法で、図４に示す折曲げ鉄筋１〜４の配置を１段筋の位置に配置した実施例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the Example which has arrange | positioned the arrangement | positioning of the bending reinforcement bars 1-4 shown in FIG. 4 in the position of 1 step | paragraph reinforcement by the reinforcement method of the column beam junction part by the bending reinforcement which concerns on this invention. 同本発明に係る柱梁接合部の補強方法における、補強部材８の使用状態を示す一部拡大説明図である。It is a partially expanded explanatory view which shows the use condition of the reinforcement member 8 in the reinforcement method of the column beam junction part based on the same invention. 従来の折曲げ鉄筋による柱梁接合部の補強方法の例を説明する縦断面図である。It is a longitudinal cross-sectional view explaining the example of the reinforcement method of the column beam junction part by the conventional bending rebar.

本発明に係る折曲げ鉄筋による柱梁接合部の補強方法は、図１に示すように、折曲げ鉄筋を、柱梁接合部の内部において交差させて配筋するものである。   As shown in FIG. 1, the method for reinforcing a beam-column joint by means of a bent rebar according to the present invention is a method in which bent bars are crossed inside the beam-column joint and are arranged.

前記柱梁接合部の補強構造に使用する折曲げ鉄筋について、先に説明する。この折曲げ鉄筋１、２は、図１（Ａ），（Ｂ）に示すように、梁の主筋に沿って配筋される折曲げ鉄筋の両端部１ａ，２ａと、該梁側の端部に設けられる定着ナット９と、斜めに屈曲され柱梁接合部７内に配筋される中央部１ｃ，２ｃとで、形成されている。   The bending rebar used for the reinforcing structure of the column beam joint will be described first. As shown in FIGS. 1 (A) and 1 (B), the bent reinforcing bars 1 and 2 have both ends 1a and 2a of the bent reinforcing bars arranged along the main reinforcing bars of the beam, and end portions on the beam side. The fixing nut 9 is provided at the center, and the central portions 1c and 2c that are bent obliquely and arranged in the column beam joint 7 are formed.

前記両端部１ａ，２ａは、それぞれ梁主筋の１段筋５ａに対して、２段筋の位置に配置される。前記中央部１ｃ，２ｃは、それぞれ、左右両側の梁の端部から上下の２段筋の位置にまで届く長さである。   The both end portions 1a and 2a are arranged at the position of the second streak with respect to the first streak 5a of the beam main reinforcement. The central portions 1c and 2c each have a length that reaches from the ends of the beams on the left and right sides to the position of the upper and lower double streaks.

前記折曲げ鉄筋１，２を、梁５と柱梁接合部７に配筋することで、コンクリートとの付着性能が向上すると共に、柱梁接合部７内のせん断力の一部を負担して、該柱梁接合部７の損傷制御に効果を発揮するものである。また、梁５における降伏ヒンジの発生する位置を制御するものである。   By arranging the bent rebars 1 and 2 in the beam 5 and the beam-column joint 7, the adhesion performance with the concrete is improved and a part of the shearing force in the beam-column joint 7 is borne. The effect is exerted in the damage control of the column beam joint 7. In addition, the position where the yield hinge is generated in the beam 5 is controlled.

図２に示すように、前記折曲げ鉄筋１，２の両端部の配置の位置を、梁５の主筋の２段筋に相当する位置では無く、１段筋５ａの位置に合わせて配置したものである。この場合、中央部１ｃ，２ｃの長さも、それぞれ、梁の端部から上下の１段筋の位置にまで届く長さである。このようにすることで、梁５の降伏ヒンジ発生位置を制御することができる。   As shown in FIG. 2, the positions of the ends of the bent rebars 1 and 2 are arranged in accordance with the position of the first reinforcing bar 5a, not the position corresponding to the second reinforcing bar of the main reinforcement of the beam 5. It is. In this case, the lengths of the central portions 1c and 2c are also lengths that reach the position of the upper and lower streaks from the end of the beam. By doing in this way, the yield hinge generation | occurrence | production position of the beam 5 is controllable.

図３（Ａ）に示すように、折曲げ鉄筋１，２の先端側に、定着ナット９に代わって、梁５の上下方向の中心に向かって屈曲されたフック部１ｄ，２ｄを形成したものである。梁側の端部１ａ，２ａは、梁主筋の２段筋の位置に配置してある。このように、定着ナット９を用いること無く、折曲げ鉄筋の端部の処理を行い、配筋するだけで良いので、部品点数が減少し且つ施工性が向上する。図３（Ｂ）に示すように、梁側の端部１ａ，２ａを梁主筋の１段筋の位置に配置することもできる。柱梁接合部７の損傷を制御するためである。   As shown in FIG. 3 (A), hook portions 1d and 2d bent toward the center in the vertical direction of the beam 5 are formed in place of the fixing nut 9 on the distal end side of the bending rebars 1 and 2. It is. The end portions 1a and 2a on the beam side are arranged at the positions of the two-step bars of the beam main bar. In this way, since the end of the bent reinforcing bar need only be processed and arranged without using the fixing nut 9, the number of parts is reduced and the workability is improved. As shown in FIG. 3B, the end portions 1a and 2a on the beam side can be arranged at the position of the first streak of the beam main bar. This is for controlling damage to the column beam joint 7.

図４乃至図５に示すように、折曲げ鉄筋１〜４が、梁と柱との主筋に沿って配筋される折曲げ鉄筋の両端部と、前記柱梁接合部の梁側の両端面から斜めに屈曲されている折曲げ鉄筋の中央部とでなり、これが梁５と柱梁接合部と柱６とに渡って配筋されている。   As shown in FIG. 4 to FIG. 5, the bending reinforcing bars 1 to 4 are arranged at both ends of the bending reinforcing bars arranged along the main reinforcing bars of the beam and the column, and both end faces of the beam-to-column connection portion on the beam side. From the center of the bent reinforcing bar that is bent obliquely, the bar is arranged over the beam 5, the column beam joint and the column 6.

これらのうち、例えば、前記折曲げ鉄筋１は、前記梁５と柱６との主筋に沿って配筋される折曲げ鉄筋の両端部１ａ，１ｂと、前記柱梁接合部７において、該柱梁接合部７の梁側の端面から該柱梁接合部７の柱側の端面へと斜めに屈曲されている折曲げ鉄筋の中央部１ｃとでなる。   Among these, for example, the bending rebar 1 is arranged at both ends 1a and 1b of the bending rebar arranged along the main reinforcing bars of the beam 5 and the column 6 and the column beam joint 7. A central portion 1c of a bent reinforcing bar that is bent obliquely from an end surface on the beam side of the beam joint portion 7 to an end surface on the column side of the column beam joint portion 7.

前記折曲げ鉄筋１の中央部１ｃは、梁側の２段筋５ｂの位置から柱側の２段筋の位置へ斜めに届く長さに形成されている。若しくは、梁側の１段筋５ａの位置から柱側の１段筋の位置へ斜めに届く長さに形成されている。   The central portion 1c of the bent reinforcing bar 1 is formed to have a length that reaches obliquely from the position of the two-stage reinforcing bars 5b on the beam side to the position of the two-stage reinforcing bars on the column side. Alternatively, it is formed to have a length that reaches obliquely from the position of the first streaks 5a on the beam side to the position of the first streaks on the column side.

前記折曲げ鉄筋１と同様に、図５（Ａ），（Ｂ）に示すように、折曲げ鉄筋２が上下対称にして，折曲げ鉄筋３，４が左右対称にして形成されている。なお、この折曲げ鉄筋１〜４のそれぞれの先端部には、周知の異形鉄筋定着用の定着ナット９が固定されており、コンクリートとの付着強度を高め引張抵抗力を発揮するようになっている。   Similar to the bent rebar 1, as shown in FIGS. 5A and 5B, the bent rebar 2 is vertically symmetric and the bent rebars 3 and 4 are left / right symmetric. In addition, the fixing nut 9 for fixing a well-known deformed reinforcing bar is fixed to the tip of each of the bent reinforcing bars 1 to 4 so as to increase the adhesion strength with concrete and exert a tensile resistance. Yes.

本発明に係る柱梁接合部の補強方法は、図４に示すように、柱梁接合部７内の折曲げ鉄筋１〜４は、梁側においては２段筋５ｂ若しくは１段筋５ａの位置に、柱側においては２段筋の位置に端部が配筋されて定着されている構造である。柱梁接合部７内において前記折曲げ鉄筋１〜４における中央部１ｃ〜４ｃが、梁５の方向に直交する水平方向から見て、互いに交差するように配筋されている。   As shown in FIG. 4, the reinforcing method for the beam-column joint according to the present invention is such that the bent reinforcing bars 1 to 4 in the beam-column joint 7 are positioned on the beam side at the second-level bar 5b or the first-level bar 5a. In addition, on the column side, the end portion is arranged and fixed at the position of the second streak. In the beam-column joint 7, the central portions 1 c to 4 c of the bent rebars 1 to 4 are arranged so as to intersect each other when viewed from the horizontal direction orthogonal to the direction of the beam 5.

このように、柱梁接合部７に折曲げ鉄筋１〜４を交差するように配筋して、梁５に渡って鉄筋を追加したので、梁の降伏ヒンジ位置を柱面から離した位置に発生させるとともに、柱梁接合部７内に生じるせん断力の一部を負担して柱梁接合部の損傷を低減するものである。   In this manner, the reinforcing bars 1 to 4 are arranged so as to cross the column beam joint 7 and the reinforcing bars are added over the beam 5, so that the yield hinge position of the beam is separated from the column surface. While generating, it bears a part of shearing force which arises in the column beam junction part 7, and reduces the damage of a column beam junction part.

なお、図６に示すように、他の実施例として、折曲げ鉄筋１〜４の中央部１ｃ〜４ｃの向きを変えて、例えば、梁側の１段筋から柱側の２段筋へと配筋できるように、折曲げ鉄筋１〜４を形成する。折曲げ鉄筋１〜４を、柱・梁に配筋して柱梁接合部７において交差する補強方法とすることもできる。このように、柱に折曲げ鉄筋を配筋することで、柱の耐力向上にも効果を発揮する。   In addition, as shown in FIG. 6, as another embodiment, the direction of the central portions 1c to 4c of the bent reinforcing bars 1 to 4 is changed, for example, from the first streak on the beam side to the second stair on the column side. Bending rebars 1 to 4 are formed so that the bars can be arranged. It is also possible to use a reinforcing method in which the bent reinforcing bars 1 to 4 are arranged in columns and beams and intersect at the column beam joint 7. In this way, by arranging bent reinforcing bars in the columns, it is effective in improving the strength of the columns.

このような他の実施例は、梁５、柱６内の鉄筋の配筋状況に応じて、配筋施工容易のために行ったり、コンクリート打設を容易にするために行ったり、建物のせん断力の負荷条件に適宜合わせて施工したりすることで、柔軟に折曲げ鉄筋を配筋できるようにするものである。   Such other embodiments are carried out for the purpose of facilitating bar arrangement according to the bar arrangement situation of the beams 5 and the pillars 6, for facilitating concrete placement, and for building shearing. By constructing it appropriately according to the load condition of the force, it is possible to flexibly arrange bent bars.

図７に示すように、折曲げ鉄筋１，２における斜めに屈曲された部分である中央部１ｃ，２ｃが、交差する箇所において、平板状の補強部材８が固着されている構造である。このような補強部材８を設けることで、平面的な納まりの向上となる。   As shown in FIG. 7, the flat reinforcing member 8 is fixed at a location where the central portions 1 c and 2 c, which are obliquely bent portions in the bent reinforcing bars 1 and 2, intersect. Providing such a reinforcing member 8 improves the planar accommodation.

本発明に係る柱梁接合部の補強方法とその降伏ヒンジ位置の制御方法は、ＲＣ造の梁柱接合部において広く適用できるものである。   The method for reinforcing a beam-column joint and the method for controlling the yield hinge position according to the present invention can be widely applied to RC beam-column joints.

１ 折曲げ鉄筋、 １ａ 梁側の端部、
１ｂ 柱側の端部、 １ｃ 柱梁接合部の中央部、
１ｄ フック部、
２ 折曲げ鉄筋、 ２ａ 梁側の端部、
２ｂ 柱側の端部、 ２ｃ 柱梁接合部の中央部、
２ｄ フック部、
３ 折曲げ鉄筋、 ３ａ 梁側の端部、
３ｂ 柱側の端部、 ３ｃ 柱梁接合部の中央部、
４ 折曲げ鉄筋、 ４ａ 梁側の端部、
４ｂ 柱側の端部、 ４ｃ 柱梁接合部の中央部、
５ 梁、 ５ａ １段筋、
５ｂ ２段筋、
６ 柱、
７ 柱梁接合部、
８ 補強部材、
９ 定着ナット。 1 Bending bar, 1a Beam end,
1b Column side end, 1c Center part of column beam joint,
1d hook part,
2 Bending bars, 2a Beam end,
2b Column side end, 2c Column beam joint center,
2d hook part,
3 Bending bars, 3a Beam end,
3b column side end, 3c column beam joint center,
4 Bending bars, 4a Beam end,
4b Column side end, 4c Column beam joint center,
5 beams, 5a 1 streaks,
5b double streaks,
6 pillars,
7 Beam-column joint,
8 reinforcement members,
9 Fixing nut.

Claims (6)

梁の主筋に沿って配筋される折曲げ鉄筋の両端部と、柱梁接合部の梁側の両端面から斜めに屈曲されている折曲げ鉄筋の中央部とでなる折曲げ鉄筋が、梁と柱梁接合部とに渡って配筋されていること、
を特徴とする折曲げ鉄筋による柱梁接合部の補強方法。 A bending rebar consisting of both ends of the bending rebar arranged along the main bar of the beam and the center of the bending rebar that is bent obliquely from both ends of the beam side of the column beam joint Are arranged over the beam-column joint,
A method of reinforcing a beam-column joint with a bent reinforcing bar. 折り曲げ鉄筋の両端部が、梁の上下方向の中心に向かって屈曲されたフック付きであること、
を特徴とする請求項１に記載の折曲げ鉄筋による柱梁接合部の補強方法。 Both ends of the bending rebar have hooks bent toward the vertical center of the beam,
The method for reinforcing a beam-column joint by means of a bent reinforcing bar according to claim 1. 梁と柱との主筋に沿って配筋される折曲げ鉄筋の両端部と、前記柱梁接合部の梁側の両端面から斜めに屈曲されている折曲げ鉄筋の中央部とでなる折曲げ鉄筋が、梁と柱梁接合部とに渡って配筋されていること、
を特徴とする折曲げ鉄筋による柱梁接合部の補強方法。 Bending consisting of both ends of the bending rebar arranged along the main reinforcement of the beam and column, and the center of the bending rebar that is bent obliquely from both ends of the beam side of the column-beam joint Reinforcing bars are arranged across the beam and column beam joints,
A method of reinforcing a beam-column joint with a bent reinforcing bar. 梁の主筋に配筋される折曲げ鉄筋の少なくとも一端部が、梁側主筋の１段筋若しくは２段筋の位置に配筋されていること、
を特徴とする請求項１乃至３のいずれか１項に記載の折曲げ鉄筋による柱梁接合部の補強方法。 At least one end of the bending reinforcing bar arranged in the main bar of the beam is arranged at the position of the first or second step of the beam side main bar,
The method for reinforcing a beam-column joint portion by bending reinforcing bars according to any one of claims 1 to 3. 折曲げ鉄筋における斜めに屈曲された部分が交差する箇所に、平板状の補強部材が固着されていること、
を特徴とする請求項１乃至４のいずれか１項に記載の折曲げ鉄筋による柱梁接合部の補強方法。 A plate-like reinforcing member is fixed to a location where the obliquely bent portions of the bent reinforcing bars intersect,
The method for reinforcing a beam-column joint portion by bending reinforcing bars according to any one of claims 1 to 4. 請求項１乃至５のいずれか１項に記載の柱梁接合部の補強方法により、梁における降伏ヒンジの位置を制御すること、
を特徴とする折り曲げ鉄筋による降伏ヒンジ位置の制御方法。 Controlling the position of the yield hinge in the beam by the method for reinforcing a beam-column joint according to any one of claims 1 to 5.
A method for controlling the yield hinge position with a bent reinforcing bar.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6335932A (en) * 1986-07-28 1988-02-16 株式会社竹中工務店 Shearing reinforcing method reinforced concrete structural member
JPH01130401U (en) * 1988-02-22 1989-09-05
JPH01280148A (en) * 1988-05-02 1989-11-10 Konoike Constr Ltd Girder and column with double x-shaped bar arrangement
JPH0512416Y2 (en) * 1986-07-28 1993-03-30
US20020002801A1 (en) * 2000-07-10 2002-01-10 Fischer Gregor D. Collapse-resistant frame system for structures
JP2007009609A (en) * 2005-07-01 2007-01-18 Kajima Corp Reinforcement arrangement structure in post and beam connection part of reinforced concrete structure
JP2011231576A (en) * 2010-04-30 2011-11-17 Protec Engineering Co Ltd Binding tool
JP2015059408A (en) * 2013-09-20 2015-03-30 三井住友建設株式会社 Concrete column-steel beam joint structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6335932A (en) * 1986-07-28 1988-02-16 株式会社竹中工務店 Shearing reinforcing method reinforced concrete structural member
JPH0512416Y2 (en) * 1986-07-28 1993-03-30
JPH01130401U (en) * 1988-02-22 1989-09-05
JPH01280148A (en) * 1988-05-02 1989-11-10 Konoike Constr Ltd Girder and column with double x-shaped bar arrangement
US20020002801A1 (en) * 2000-07-10 2002-01-10 Fischer Gregor D. Collapse-resistant frame system for structures
JP2007009609A (en) * 2005-07-01 2007-01-18 Kajima Corp Reinforcement arrangement structure in post and beam connection part of reinforced concrete structure
JP2011231576A (en) * 2010-04-30 2011-11-17 Protec Engineering Co Ltd Binding tool
JP2015059408A (en) * 2013-09-20 2015-03-30 三井住友建設株式会社 Concrete column-steel beam joint structure

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