JPH0814130B2 - Column-beam joint structure - Google Patents
Column-beam joint structureInfo
- Publication number
- JPH0814130B2 JPH0814130B2 JP2097195A JP9719590A JPH0814130B2 JP H0814130 B2 JPH0814130 B2 JP H0814130B2 JP 2097195 A JP2097195 A JP 2097195A JP 9719590 A JP9719590 A JP 9719590A JP H0814130 B2 JPH0814130 B2 JP H0814130B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- column
- fixing plate
- steel rod
- restraint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は梁主筋の定着強度と接合部のせん断耐力を
高めた、鉄筋コンクリート造の柱・梁接合部構造に関す
るものである。Description: TECHNICAL FIELD The present invention relates to a reinforced concrete column-beam joint structure in which anchoring strength of a beam main bar and shear strength of a joint are increased.
〔発明が解決しようとする課題〕 鉄筋コンクリート造の柱・梁接合部において、耐震
性、すなわちエネルギー吸収能力を高めるには、梁主筋
の抜け出しを防止する必要からその、柱への付着強度の
増加と、接合部のせん断破壊を防止するためのせん断耐
力の向上が必要であるが、これらの要件は従来、柱幅を
増し、梁主筋の定着長を増すと同時に、接合部の断面積
を拡大することによって確保されている。[Problems to be Solved by the Invention] In a reinforced concrete column-beam joint, in order to improve seismic resistance, that is, energy absorption capacity, it is necessary to prevent the beam main bar from slipping out, and therefore the increase in the bond strength to the column. , It is necessary to improve the shear strength to prevent shear failure of the joint, but these requirements conventionally increase the column width, increase the anchorage length of the beam main bar, and at the same time increase the cross-sectional area of the joint. Is secured by
しかしながら、柱幅の拡大は特に低層階において居住
性に与える影響が大きいため適切な方法とは言えない。However, increasing the width of the columns has a great impact on habitability, especially in the lower floors, and is not an appropriate method.
この発明はこうした実情を踏まえてなされたもので、
柱幅を拡大することなく、上記課題を解決する構造を新
たに提案しようとするものである。This invention was made in view of these circumstances,
It is intended to newly propose a structure that solves the above problem without increasing the width of the pillar.
本発明では梁端部に垂直ハンチを形成することによ
り、その付加分の梁主筋の柱への定着長と接合部の体積
を増し、また梁天端位置の柱回りに、梁天端と柱側面と
に同時に当接する拘束金物を周回させて配置するととも
に、垂直ハンチに定着板を当接し、この定着板と拘束金
物間に接合部を斜めに貫通する鋼棒を架設してこれに張
力を導入し、定着板と拘束金物間のコンクリートを圧縮
することによってコンクリートを拘束し、その剛性と耐
力を高める。In the present invention, by forming a vertical haunch at the beam end, the additional length of the added beam main reinforcement to the column and the volume of the joint are increased, and around the column at the beam top position, the beam top end and the column side face are simultaneously formed. The contacting restraint hardware is placed around the fixing plate, and the fixing plate is brought into contact with the vertical haunch, and a steel rod is installed between the fixing plate and the restraining fixture so as to obliquely penetrate the joint. By compressing the concrete between the plate and the restraint hardware, the concrete is restrained and its rigidity and yield strength are increased.
以下本発明を一実施例を示す図面に基づいて説明す
る。Hereinafter, the present invention will be described with reference to the drawings showing one embodiment.
この発明は第１図に示すように鉄筋コンクリート造の
梁Ｂの端部に付けられる垂直ハンチｂにより接合部の体
積を増すと同時に、垂直ハンチｂに当接される定着板１
と、柱Ｃの回りに配置される拘束金物２と、両者間に架
設される鋼棒３とにより接合部のコンクリートを拘束
し、その耐力を高めたものである。As shown in FIG. 1, the present invention increases the volume of a joint portion by a vertical haunch b attached to an end portion of a reinforced concrete beam B, and at the same time, a fixing plate 1 abutted on the vertical haunch b.
The restraint metal 2 arranged around the pillar C and the steel rod 3 laid between the two restrain the concrete at the joint to increase the yield strength.
拘束金物２は第１図，第２図−Ｉに示すように梁Ｂの
天端位置の柱Ｃの回りに周回して配置され、柱Ｃの側面
と梁Ｂ（スラブが現場打ちの場合はスラブ）の天端に同
時に当接する。この拘束金物２は例えばアングルの組み
立て等により形成される。As shown in FIGS. 1 and 2-I, the restraint hardware 2 is arranged around the pillar C at the top position of the beam B, and the side surface of the pillar C and the beam B (when the slab is cast in situ). Slab) abuts at the same time. The restraint hardware 2 is formed by, for example, assembling an angle.
一方、定着板１は垂直ハンチｂの下面の全面に当接
し、第２図−IIに示すように拘束金物２と間に斜めに架
設される鋼棒３によって拘束金物２に接続される。On the other hand, the fixing plate 1 is in contact with the entire lower surface of the vertical haunch b, and is connected to the restraint metal 2 by a steel rod 3 which is installed obliquely between the restraint metal 2 and the restraint metal 2 as shown in FIG.
鋼棒３は第２図−Ｉに示すように接合部内を２方向
に、且つIIに示すように１方向に付き、立面的に交差し
て配置され、拘束金物２には例えば溶接により、定着板
１にはナット４により接続される。The steel rods 3 are arranged in the joint portion in two directions as shown in FIG. 2I and in one direction as shown in II, and are arranged so as to intersect in an elevational manner. The fixing plate 1 is connected by a nut 4.
この鋼棒３の引張力による定着板１からの圧縮力が接
合部に効率的に作用するよう、図示するように垂直ハン
チｂは鋼棒３の軸に垂直な方向の傾斜で形成される。The vertical haunch b is formed with an inclination in a direction perpendicular to the axis of the steel rod 3 so that the compressive force from the fixing plate 1 due to the tensile force of the steel rod 3 effectively acts on the joint portion as shown in the figure.
この垂直ハンチｂが付加される分だけ梁主筋５の柱Ｃ
への定着長と接合部の体積が増加し、梁主筋５の定着強
度と接合部でせん断力に抵抗する部分が増すことにな
る。The column C of the beam main bar 5 is added by the amount of the vertical haunch b.
The fixing length to the joint and the volume of the joint increase, and the fixing strength of the beam main bar 5 and the portion of the joint that resists shearing force increase.
鋼棒３にはナット４の締め付けにより張力が導入さ
れ、交差する２本の鋼棒3,3により接合部のコンクリー
トには一立面に付き、２方向に圧縮力が加えられ、拘束
される。Tension is introduced to the steel rod 3 by tightening the nut 4, and two intersecting steel rods 3, 3 attach to the concrete surface of the joint on one elevating surface, and compressive force is applied in two directions and restrained. .
この結果、コンクリートはほぼ３軸圧縮状態となり、
接合部の剛性と耐力が向上されると同時に、それによっ
て梁主筋５の定着（付着）強度が高められることにな
る。As a result, the concrete is almost triaxially compressed,
The rigidity and proof stress of the joint portion are improved, and at the same time, the fixing (adhesion) strength of the main beam 5 of the beam is enhanced.
この発明は以上の通りであり、垂直ハンチにより接合
部の体積と、梁主筋の定着長を増すと同時に、そのハン
チを利用した鋼棒の張力導入によりコンクリートを圧縮
し、拘束したものであるため上記した通り、接合部の耐
震性能を向上させることができる。The present invention is as described above, since the volume of the joint and the anchor length of the beam main bar are increased by the vertical haunch, and at the same time, the concrete is compressed and restrained by the tension introduction of the steel rod using the haunch. As mentioned above, the seismic performance of the joint can be improved.
第１図は本発明の実施例を示した立面図、第２図−I,II
はそれぞれのＸ−Ｘ線,Y−Ｙ線断面図である。 Ｃ……柱、Ｂ……梁、ｂ……垂直ハンチ、１……定着
板、２……拘束金物、３……鋼棒、４……ナット、５…
…梁主筋。FIG. 1 is an elevational view showing an embodiment of the present invention, and FIGS.
FIG. 3 is a cross-sectional view taken along line XX and YY, respectively. C ... Pillar, B ... Beam, b ... Vertical haunch, 1 ... Fixing plate, 2 ... Restraint metal, 3 ... Steel rod, 4 ... Nut, 5 ...
… The main beam.
Claims (1)
チが形成された柱・梁接合部において、梁天端位置の柱
回りに、梁天端と柱側面に同時に当接する拘束金物を周
回させて配置するとともに、垂直ハンチに定着板を当接
し、この定着板と拘束金物間に接合部を斜めに貫通する
鋼棒を架設し、この鋼棒に張力を導入し、定着板と拘束
金物間のコンクリートを圧縮してあることを特徴とする
柱・梁接合部構造。1. In a column-beam joint of a reinforced concrete structure in which a vertical haunch is formed at the beam end, a restraint metal member that abuts the beam top end and the column side face at the same time is arranged around the column at the beam top end position. , The fixing plate is brought into contact with the vertical haunch, and the steel rod that diagonally penetrates the joint is installed between the fixing plate and the restraint metal, and the tension is introduced to this steel rod to compress the concrete between the fixing plate and the restraint metal. The pillar-beam joint structure characterized by being
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2097195A JPH0814130B2 (en) | 1990-04-12 | 1990-04-12 | Column-beam joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2097195A JPH0814130B2 (en) | 1990-04-12 | 1990-04-12 | Column-beam joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03295940A JPH03295940A (en) | 1991-12-26 |
| JPH0814130B2 true JPH0814130B2 (en) | 1996-02-14 |
Family
ID=14185812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2097195A Expired - Lifetime JPH0814130B2 (en) | 1990-04-12 | 1990-04-12 | Column-beam joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0814130B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7171110B1 (en) * | 2022-07-25 | 2022-11-15 | 株式会社ジェッター | game table holding device |
-
1990
- 1990-04-12 JP JP2097195A patent/JPH0814130B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7171110B1 (en) * | 2022-07-25 | 2022-11-15 | 株式会社ジェッター | game table holding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03295940A (en) | 1991-12-26 |
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