JP2000319983A - Joining structure of column and beam of reinforced concrete structure - Google Patents
Joining structure of column and beam of reinforced concrete structureInfo
- Publication number
- JP2000319983A JP2000319983A JP11134239A JP13423999A JP2000319983A JP 2000319983 A JP2000319983 A JP 2000319983A JP 11134239 A JP11134239 A JP 11134239A JP 13423999 A JP13423999 A JP 13423999A JP 2000319983 A JP2000319983 A JP 2000319983A
- Authority
- JP
- Japan
- Prior art keywords
- column
- fixing
- beams
- fixing plate
- main
- 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.)
- Pending
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は鉄筋コンクリート構
造物の柱と梁の接合構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a column and a beam of a reinforced concrete structure.
【０００２】[0002]
【従来の技術】鉄筋コンクリート構造物の柱と梁の接合
構造において、梁の主筋が柱に通し配筋される場合、柱
内における梁の主筋の付着劣化により骨組みの履歴性状
にスリップ現象が発生するという問題があった。そこ
で、このような問題を解決するために、図４に示すよう
に、柱１１内の梁の主筋１２の定着長さを確保しつつ、
梁の主筋１２に定着プレート１３を取り付ける柱と梁の
接合構造が考えられている。2. Description of the Related Art In a joint structure between a column and a beam of a reinforced concrete structure, when the main bar of the beam is laid through the column, a slip phenomenon occurs in the hysteresis of the frame due to the adhesion deterioration of the main bar of the beam in the column. There was a problem. Therefore, in order to solve such a problem, as shown in FIG. 4, while securing the fixing length of the main reinforcement 12 of the beam in the column 11,
A joint structure of a pillar and a beam for attaching the fixing plate 13 to the main bar 12 of the beam has been considered.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記のような
柱と梁の接合構造は、定着プレートからのコンクリート
のかぶり厚が小さい側で、図４の（１）に示すように、
定着プレートが柱のコンクリートをコーン状（斜線分）
に引き抜いてしまう（以下定着破壊という）問題があっ
た。However, the joint structure between the column and the beam as described above has a structure in which the cover thickness of the concrete from the fixing plate is small, as shown in FIG.
Fixing plate is cone-shaped concrete pillar (diagonal line)
(Hereinafter referred to as fixing failure).
【０００４】本発明は、このような問題に鑑みてなされ
たものであり、その目的は、梁の主筋に設けた定着プレ
ートが定着破壊をしない鉄筋コンクリート構造物の柱と
梁の接合構造を提供することである。The present invention has been made in view of such a problem, and an object of the present invention is to provide a joint structure between a column and a beam of a reinforced concrete structure in which a fixing plate provided on a main bar of the beam does not cause anchorage failure. That is.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決するた
めの手段は、請求項１の発明が、梁における主筋が柱に
通し配筋された鉄筋コンクリート構造物の柱と梁の接合
構造において、前記柱内における梁の主筋に定着プレー
トを対向して設け、該定着プレートの対向面と反対側面
に弾性材を設けたことを特徴とする。Means for solving the above problems are as follows. The invention according to claim 1 is a joint structure between a column and a beam of a reinforced concrete structure in which a main reinforcement of the beam is laid through the column. A fixing plate is provided so as to face the main reinforcement of the beam in the column, and an elastic material is provided on a side surface opposite to the facing surface of the fixing plate.
【０００６】請求項１の発明によれば、梁の主筋の一方
向に引抜力が作用した場合、柱内における定着長さが短
く、かつコンクリートのかぶり厚が小さい側の定着プレ
ートは、その外面側の弾性材で引抜力を吸収して定着破
壊をしなくなる。一方、前記定着プレートと対向した定
着プレートは、かぶり厚と引抜力に対する柱の抵抗面積
とが大きくなる。According to the first aspect of the present invention, when a pull-out force acts in one direction of the main bar of the beam, the fixing plate on the side where the fixing length in the column is short and the cover thickness of the concrete is small is the outer surface thereof. The elastic material on the side absorbs the pulling force and prevents fixing failure. On the other hand, the fixing plate facing the fixing plate has a large cover thickness and a large resistance area of the column to the pull-out force.
【０００７】また請求項２の発明が、請求項１におい
て、前記弾性材はゴム板であることを特徴とする。According to a second aspect of the present invention, in the first aspect, the elastic material is a rubber plate.
【０００８】請求項２の発明によれば、定着プレートの
ゴム板は引抜力を効果的に吸収する。According to the second aspect of the present invention, the rubber plate of the fixing plate effectively absorbs the pulling force.
【０００９】[0009]
【発明の実施の形態】以下、本発明の鉄筋コンクリート
構造物の柱と梁の接合構造の実施の形態を図面に基づい
て説明する。図１は鉄筋コンクリート構造物の柱と梁の
接合部の縦断面図、図２は同横断面図、図３の（１）お
よび（２）は柱のコンクリートの引抜抵抗を示した概念
図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a reinforced concrete structure according to an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a joint between a column and a beam of a reinforced concrete structure, FIG. 2 is a transverse sectional view of the same, and FIGS. 3 (1) and (2) are conceptual diagrams showing the pull-out resistance of concrete of a column. .
【００１０】本実施の形態の鉄筋コンクリート構造物の
柱と梁の接合構造は、柱１の側面に梁２、３が接合さ
れ、柱１と直交した梁２、３における主筋４、５が通し
配筋として柱１内に配筋され、一方の梁における主筋４
と、他方の梁３における主筋５とが交差している。The joint structure between the columns and the beams of the reinforced concrete structure according to the present embodiment has a structure in which the beams 2 and 3 are joined to the side surface of the column 1 and the main reinforcements 4 and 5 of the beams 2 and 3 orthogonal to the column 1 are arranged through. The main reinforcement 4 in one beam is arranged in the column 1 as a reinforcement.
And the main bar 5 of the other beam 3 intersect.
【００１１】この柱１内において通し配筋された梁の主
筋４、５には、定着プレート６、７が対向して設けられ
ている。すなわち、通し配筋された梁の主筋４、５の一
本につき一対の定着プレート６、７が設けられている。
そして、これらの定着プレート６、７の外側面、すなわ
ち対向面とは反対側の面にはゴム板などの弾性材８が貼
り付けられている。このように定着プレート６、７にお
ける柱１のコンクリートのかぶり厚の少ない側には、す
べて弾性材８が貼り付けられている。[0011] Fixing plates 6 and 7 are provided opposite to the main reinforcing bars 4 and 5 of the beams laid through in the pillar 1. In other words, a pair of fixing plates 6 and 7 are provided for each of the main reinforcing bars 4 and 5 of the through-beams.
An elastic material 8 such as a rubber plate is attached to the outer surfaces of the fixing plates 6 and 7, that is, the surface opposite to the facing surface. As described above, the elastic members 8 are all attached to the sides of the fixing plates 6 and 7 on the side of the pillar 1 where the concrete cover thickness is small.
【００１２】図３は、上記のような構成の梁の主筋４、
５の引抜抵抗を示した概念図であり、例えば（１）に示
すように、上側の梁の主筋４に矢印方向の引抜力が作用
した場合、柱１内における定着長さが短く、かつかぶり
厚の小さい側の定着プレート（以下、第一定着プレート
という）６は、その外面側の弾性材８で引抜力を吸収し
て定着破壊をしなくなる。FIG. 3 shows the main reinforcement 4 of the beam having the above-described configuration.
5 is a conceptual diagram showing the pull-out resistance of No. 5, for example, as shown in (1), when a pull-out force acts on the main bar 4 of the upper beam in the direction of the arrow, the fixing length in the column 1 is short, and The fixing plate 6 on the smaller thickness side (hereinafter, referred to as a first fixing plate) 6 absorbs the pulling force by the elastic material 8 on the outer surface side, and does not break the fixing.
【００１３】一方、他の定着プレート（以下、第二定着
プレートという）７は、かぶり厚と、引抜力に対する柱
の抵抗面積９が大きくなる。このような作用は、下側の
梁の主筋４に矢印方向の引抜力が作用した場合も同じで
ある。On the other hand, the other fixing plate (hereinafter, referred to as a second fixing plate) 7 has a large cover thickness and a large resistance area 9 of the column to the pull-out force. Such an operation is the same when the pullout force in the direction of the arrow acts on the main bar 4 of the lower beam.
【００１４】また同図の（２）は、上記梁の主筋４に前
記とは反対側の引抜力（矢印方向）が作用した場合の引
抜抵抗を示したものであり、前記とは反対に第二定着プ
レート７は、かぶり厚と、引抜力に対する柱の抵抗面積
９とが大きくなる。すなわち、前記第一定着プレート６
と同じ作用をするようになる。FIG. 2B shows the pull-out resistance when a pull-out force (in the direction of the arrow) on the opposite side to the main bar 4 of the beam is applied. In the second fixing plate 7, the fogging thickness and the resistance area 9 of the column to the pulling force increase. That is, the first fixing plate 6
Will have the same effect as
【００１５】一方、第一定着プレート６は前記とは反対
に、かぶり厚と、引抜力に対する柱の抵抗面積９とが小
さくなるが、その外面側の弾性材８で引抜力を吸収する
ので、定着破壊はしない。すなわち、前記第二定着プレ
ート７と同じ作用をするようになる。このような作用
は、下側の梁の主筋４に矢印方向の引抜力が作用した場
合も同じである。On the other hand, the first fixing plate 6, on the other hand, has a smaller cover thickness and a smaller resistance area 9 of the column with respect to the pull-out force. It does not break down. That is, the same operation as the second fixing plate 7 is performed. Such an operation is the same when the pullout force in the direction of the arrow acts on the main bar 4 of the lower beam.
【００１６】上記のことから、梁主筋の引抜力に対し
て、引抜抵抗面積の大きな定着プレートのみが抵抗し、
柱と梁の接合部の破壊を防止するため、骨組の履歴性状
におけるスリップ現象が抑制されて、骨組のエネルギー
吸収能力が向上する。From the above, only the fixing plate having a large pull-out resistance area resists the pull-out force of the beam main reinforcement,
In order to prevent the joint between the column and the beam from being broken, the slip phenomenon in the hysteresis of the skeleton is suppressed, and the energy absorbing ability of the skeleton is improved.
【００１７】[0017]
【発明の効果】梁の主筋の一方向に引抜力が作用した場
合、柱内における定着長さが短く、かつかぶり厚の小さ
い側の定着プレートは、その外面側の弾性材が引抜力を
吸収して定着破壊をしなくなる。したがって、前記定着
プレートと対向したかぶり厚と、引抜抵抗面積の大きな
定着プレートのみが柱主筋の引抜力に抵抗する。According to the present invention, when a pulling force acts in one direction of the main bar of the beam, the fixing plate on the side where the fixing length is short and the cover thickness is small is absorbed by the elastic material on the outer surface side. Will not cause fixing damage. Therefore, only the fixing plate having a large cover thickness facing the fixing plate and a large pull-out resistance area resists the pull-out force of the main pillar.
【００１８】ゴム板は引抜力を効果的に吸収する。The rubber plate effectively absorbs the pulling force.
【図面の簡単な説明】[Brief description of the drawings]
【図１】柱と梁の接合部の縦断図である。FIG. 1 is a longitudinal sectional view of a joint between a column and a beam.
【図２】柱と梁の接合部の横断図である。FIG. 2 is a cross-sectional view of a joint between a column and a beam.
【図３】梁の主筋の引抜抵抗を示した概念図である。FIG. 3 is a conceptual diagram showing pull-out resistance of a main bar of a beam.
【図４】（１）は従来の柱と梁の接合部の縦断図、
（２）は同横断図である。FIG. 4 is a longitudinal sectional view of a conventional joint between a column and a beam.
(2) is the cross section.
１、１１ 柱 ２、３ 梁 ４、５、１２ 梁の主筋 ６、７、１３ 定着プレート ８ 弾性材 ９ 柱の抵抗面積 1, 11 pillars 2, 3 beams 4, 5, 12 main bars of beams 6, 7, 13 fixing plate 8 elastic material 9 resistance area of pillars
Claims (2)
筋コンクリート構造物の柱と梁の接合構造において、前
記柱内における梁の主筋に定着プレートを対向して設
け、該定着プレートの対向面と反対側面に弾性材を設け
たことを特徴とする鉄筋コンクリート構造物の柱と梁の
接合構造。In a joint structure of a column and a beam of a reinforced concrete structure in which a main reinforcing bar of a beam is laid through a column, a fixing plate is provided to face the main reinforcing bar of the beam in the column, and an opposing surface of the fixing plate is provided. A joint structure between a column and a beam of a reinforced concrete structure, characterized in that an elastic material is provided on a side opposite to the side.
する請求項１に記載の鉄筋コンクリート構造物の柱と梁
の接合構造。2. The joint structure between a column and a beam of a reinforced concrete structure according to claim 1, wherein the elastic material is a rubber plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11134239A JP2000319983A (en) | 1999-05-14 | 1999-05-14 | Joining structure of column and beam of reinforced concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11134239A JP2000319983A (en) | 1999-05-14 | 1999-05-14 | Joining structure of column and beam of reinforced concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000319983A true JP2000319983A (en) | 2000-11-21 |
Family
ID=15123676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11134239A Pending JP2000319983A (en) | 1999-05-14 | 1999-05-14 | Joining structure of column and beam of reinforced concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000319983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007063910A (en) * | 2005-09-01 | 2007-03-15 | Railway Technical Res Inst | Deviation preventive guard of crosstie and crosstie with deviation preventive guard |
-
1999
- 1999-05-14 JP JP11134239A patent/JP2000319983A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007063910A (en) * | 2005-09-01 | 2007-03-15 | Railway Technical Res Inst | Deviation preventive guard of crosstie and crosstie with deviation preventive guard |
| JP4549262B2 (en) * | 2005-09-01 | 2010-09-22 | 財団法人鉄道総合技術研究所 | Ladder sleeper with escape guard |
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