JPS6335932A - Shearing reinforcing method reinforced concrete structural member - Google Patents
Shearing reinforcing method reinforced concrete structural memberInfo
- Publication number
- JPS6335932A JPS6335932A JP17834186A JP17834186A JPS6335932A JP S6335932 A JPS6335932 A JP S6335932A JP 17834186 A JP17834186 A JP 17834186A JP 17834186 A JP17834186 A JP 17834186A JP S6335932 A JPS6335932 A JP S6335932A
- Authority
- JP
- Japan
- Prior art keywords
- column
- reinforced concrete
- reinforcing bars
- structural member
- concrete structural
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 10
- 239000011150 reinforced concrete Substances 0.000 title claims description 5
- 238000010008 shearing Methods 0.000 title 1
- 238000005452 bending Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、鉄筋コンクリート構造（以下ＲＣ造と称する
）部材のせん断補強法、特に、柱部材端部、梁部材端部
乃至柱・梁接合部のせん断補強法に関する。Detailed Description of the Invention "Field of Industrial Application" The present invention relates to a shear reinforcement method for reinforced concrete structure (hereinafter referred to as RC structure) members, particularly at the ends of column members, the ends of beam members, and column-beam joints. Regarding the shear reinforcement method.
「従来の技術と発明が解決しようとする問題点」新耐震
設計法における保有耐力設計では、架構の崩壊メカニズ
ムが重要となるが、−船釣なｔＪＬ構形式では、梁の両
端部と一階柱の脚部に塑性ヒンジが形成されるメカニズ
ムとなるようにしている。``Problems to be solved by conventional technology and inventions'' The collapse mechanism of the frame is important in the capacity design of the new seismic design method, but in the tJL structure type, both ends of the beam and The mechanism is such that a plastic hinge is formed at the base of the column.
しかしながら、この崩壊メカニズムを形成させるために
は、部材のせん断破壊を防止し、かつ、十分な変形性能
をもたせることが不可欠である。However, in order to form this collapse mechanism, it is essential to prevent shear failure of the member and to provide it with sufficient deformation performance.
そのため、部材の設計において、曲げ破壊耐力に対して
、せん断破壊耐力を十分に大きくして、曲げ破壊が先行
するようにしているのが現状である。Therefore, in the design of members, the current practice is to make the shear fracture strength sufficiently larger than the bending fracture strength so that the bending fracture occurs first.
一方、ＲＣ部材のせん断補強法としては、１３５゜フッ
クを有するフープ、スタラノブあるいはスパイラル筋等
があり、更に、これらの補強筋に高強度鉄筋を使用する
場合がある。On the other hand, shear reinforcing methods for RC members include hoops with 135° hooks, star knobs, spiral bars, and the like, and high-strength reinforcing bars may be used as these reinforcing bars.
しかしながら、これらのせん断補強法では、鉄筋量をあ
る限度以上にすると、そ机に見合ったせん断耐力の増大
は期待できないということが明らかにされている。However, with these shear reinforcement methods, it has been revealed that if the amount of reinforcing bars is increased beyond a certain limit, the shear strength cannot be expected to increase commensurately.
本発明は、従来のせん断補強法とは全く異なる新しい補
強法を提案することにより、ＲＣ部材のせん断耐力を増
大させ、更に、部材端部での回転変形性情及び柱・梁接
合部でのせん断変形性能を増大させようとするものであ
る。The present invention increases the shear strength of RC members by proposing a new reinforcement method that is completely different from conventional shear reinforcement methods, and further improves the rotational deformation properties at the ends of the members and the shear strength at the column-beam joints. This is intended to increase deformation performance.
「問題点を解決するための手段」
本発明は、鉄筋コンクリート構造の往・梁部材端部乃至
柱・梁接合部の適所に、Ｘ字状に交差させた折曲げ補強
筋を配置して成る。``Means for Solving the Problems'' The present invention is constructed by arranging bent reinforcing bars that intersect in an X-shape at appropriate locations from the ends of the front and beam members to the column and beam joints of a reinforced concrete structure.
「作用」
以上の構成であるから、配置した折曲げ補強筋４・・・
のＸ字状交差部分に引張力あるいは圧縮力が作用すると
、第９図に示すように、材軸と平行及び直交方向に分力
が生じるため、従来のせん断補強筋（フープ、スタラッ
プ等）では頭打ちとなったＲＣ部材のせん断耐力を更に
増大させることができる。"Function" Since the above configuration is used, the bending reinforcing bars 4 placed...
When a tensile or compressive force is applied to the X-shaped intersection of the The shear strength of the RC member, which has reached its peak, can be further increased.
また、Ｘ字状に交差した折曲げ補強筋４・・・は、第１
０図に示すように、斜張力ひびわれに対して直交方向の
配筋となるので、ＲＣ部材のせん断破壊を防止し、並び
に、変形性能の増大を可能ならしめる。In addition, the bending reinforcing bars 4 that intersect in an X shape are the first
As shown in Figure 0, the reinforcement is arranged in a direction perpendicular to the diagonal tension crack, which prevents shear failure of the RC member and increases deformation performance.
「実施例」 第１図乃至第５図は、各種実施例を示している。"Example" 1 to 5 show various embodiments.
第１図の場合は、柱部材１、梁部材２及び往・梁接合部
３において、一方の梁部材２ａから柱・梁接合部３を経
て他方の梁部材２ｂに至る複数の折曲げ補強筋４・・・
を上下に配置し、これらの折曲げ補強筋を各梁部材の端
部２１ａ、 ２１ｂで上下相互にてＸ字状に交差させて
成る。In the case of Fig. 1, in the column member 1, the beam member 2, and the forward/beam joint 3, there are a plurality of bent reinforcing bars extending from one beam member 2a through the column/beam joint 3 to the other beam member 2b. 4...
are arranged one above the other, and these bending reinforcing bars are made to intersect with each other in an X-shape at the ends 21a and 21b of each beam member.
第２図の場合は、柱部材ｌ、梁部材２及び柱・梁接合部
３において、一方の梁部材２ａの端部２１ａから柱・梁
接合部３を経て他方の梁部材２ｂの端部２１ｂに至る複
数の折曲げ補強筋４・・・を上下に配置し、これらの折
曲げ補強筋を柱・梁接合部３にて上下をＸ字状に交差さ
せて成る。In the case of FIG. 2, in the column member l, the beam member 2, and the column-beam joint 3, from the end 21a of one beam member 2a, through the column-beam joint 3, to the end 21b of the other beam member 2b. A plurality of bending reinforcing bars 4 . . . are arranged above and below, and these bending reinforcing bars are crossed at the column-beam joint 3 in an X-shape.
第３図の場合は、第１図の場合と、第２図の場合とを併
用して成る。In the case of FIG. 3, the case of FIG. 1 and the case of FIG. 2 are combined.
第４図の場合は、柱部材１、梁部材２及び柱・梁接合部
３において、下階の柱部材１ａから柱・梁接合部３を経
て上階の柱部材１ｂに至る複数の折曲げ補強筋４・・・
を左右に配置し、これらの折曲げ補強筋を各柱部材の端
部１１ａ、１１ｂで左右相互にてＸ字状に交差させて成
る。In the case of Fig. 4, in the column member 1, beam member 2, and column-beam joint 3, there are multiple bends from the column member 1a on the lower floor through the column-beam joint 3 to the column member 1b on the upper floor. Reinforcement bar 4...
are arranged on the left and right, and these bent reinforcing bars are crossed in an X-shape at the ends 11a and 11b of each column member.
第５図の場合は、第４図の場合において、折曲げ補強筋
４・・・を柱・梁接合部３でもＸ字状に交差させて成る
。In the case of FIG. 5, in the case of FIG. 4, the bending reinforcing bars 4... are also made to intersect in an X-shape at the column-beam joint 3.
以上の各場合において、折曲げ補強筋４・・・のＸ字状
交差部分の傾斜角は、−船釣には４５度が適当であるが
、部材成等との関係から適宜に変えてよい。In each of the above cases, the angle of inclination of the X-shaped intersection of the bent reinforcing bars 4 is appropriate for -45 degrees for boat fishing, but may be changed as appropriate depending on the component composition, etc. .
折曲げ補強筋４・・・は、柱部材ｌ及び梁部材２ｉ）主
筋又は補助筋に結束する。また、折曲げ補強筋４・・・
は、通宝の強度を有する鉄筋でよいが、高強度鉄筋を用
いることも可能である０図中、５は、打設コンクリート
である。The bending reinforcing bars 4... are tied to the main bars or auxiliary bars of the column member 1 and the beam member 2i. In addition, bending reinforcing bars 4...
0 may be a reinforcing bar having the strength of the standard, but it is also possible to use a high-strength reinforcing bar. In Figure 0, 5 is poured concrete.
第６図乃至第８図は、第１図の場合の具体例を示してい
る０図において、１２・・・は、柱主筋、１３・・・は
、フープ、２２・・・は、梁主筋、２３・・・は、スタ
ラップ、２４・・・は、補助筋である。6 to 8 show specific examples of the case shown in FIG. , 23... are stirrups, and 24... are auxiliary muscles.
この場合は、折曲げ補強筋４・・・は２組であるが、３
乃至４組でもよい。In this case, there are two sets of bending reinforcing bars 4, but there are three sets of bending reinforcing bars 4...
It may be 4 to 4 groups.
「発明の効果」
本発明によれば、ＲＣ部材のせん断耐力を増大させるこ
とができ、また部材端部での回転変形性情及び柱・梁接
合部でのせん断変形性能を増大させることができるため
、所期の目的を達成することができる。"Effects of the Invention" According to the present invention, the shear strength of the RC member can be increased, and the rotational deformation property at the end of the member and the shear deformation performance at the column-beam joint can be increased. , the intended purpose can be achieved.
図面は、本発明の実施例で第１図乃至第５図は、それぞ
れ実施例態様を示す施工要領説明図、第６図は、第１図
の場合の具体例を示す截断側面図、第７図は、同要部の
側面図、第８図は、第６図■−電線の拡大断面図、第９
図、第１０図は、作用説明図である。
１・・・柱部材 ２・・・梁部材３・・・柱
・梁接合部 ４・・・折曲げ補強筋５・・・打設コ
ンクリート１２・・・柱主筋１３・・・フープ
２２・・・梁主筋２３・・・スタラップ ２
４・・・補助筋特許出願人 株式会社 竹中工務店
代 理 人 弁理士 今 岡 良 夫
゛第１図
第２図
第３図
第４図
第５図
す申・吋ｌｉｄコ／クフーｒ
第６図
第７図
第８図The drawings are examples of the present invention, and FIGS. 1 to 5 are construction procedure explanatory diagrams showing aspects of the embodiments. FIG. 6 is a cutaway side view showing a specific example of the case shown in FIG. The figure is a side view of the same main part, Figure 8 is an enlarged sectional view of Figure 6 - Electric wire, Figure 9 is
FIG. 10 is an explanatory diagram of the operation. 1... Column member 2... Beam member 3... Column-beam joint 4... Bending reinforcement 5... Placed concrete 12... Column main reinforcement 13... Hoop
22... Beam main reinforcement 23... Stirrup 2
4...Auxiliary patent applicant Yoshio Konoka, agent of Takenaka Corporation, patent attorney
Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
部の適所に、Ｘ字状に交差させた折曲げ補強筋を配置す
ることを特徴とする鉄筋コンクリート構造部材のせん断
補強法。A shear reinforcement method for reinforced concrete structural members, characterized by placing bending reinforcing bars crossed in an X-shape at appropriate locations at the ends of the pillar/beam members or at the joints of the pillars/beams of the reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17834186A JPS6335932A (en) | 1986-07-28 | 1986-07-28 | Shearing reinforcing method reinforced concrete structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17834186A JPS6335932A (en) | 1986-07-28 | 1986-07-28 | Shearing reinforcing method reinforced concrete structural member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6335932A true JPS6335932A (en) | 1988-02-16 |
Family
ID=16046796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17834186A Pending JPS6335932A (en) | 1986-07-28 | 1986-07-28 | Shearing reinforcing method reinforced concrete structural member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6335932A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017198027A (en) * | 2016-04-28 | 2017-11-02 | 株式会社竹中工務店 | Foundation beam joining structure |
| JP2018145594A (en) * | 2017-03-01 | 2018-09-20 | 戸田建設株式会社 | Reinforcing method for column-to-beam joint using folded bars and controlling method for yield hinge position |
| JP2018145595A (en) * | 2017-03-01 | 2018-09-20 | 戸田建設株式会社 | Controlling method for yield hinge position using folded bars and control structure thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204270A (en) * | 1982-05-20 | 1983-11-28 | 株式会社大林組 | Anchoring of beam main reinforcing wire in reinforced concrete structure |
| JPS60152779A (en) * | 1984-01-18 | 1985-08-12 | 清水建設株式会社 | Reinforcement structure of short shaft in building |
| JPS60181457A (en) * | 1984-02-28 | 1985-09-17 | 株式会社鴻池組 | Prestressed concrete pillar having pc strand mounted in x-shape therein under tension |
-
1986
- 1986-07-28 JP JP17834186A patent/JPS6335932A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204270A (en) * | 1982-05-20 | 1983-11-28 | 株式会社大林組 | Anchoring of beam main reinforcing wire in reinforced concrete structure |
| JPS60152779A (en) * | 1984-01-18 | 1985-08-12 | 清水建設株式会社 | Reinforcement structure of short shaft in building |
| JPS60181457A (en) * | 1984-02-28 | 1985-09-17 | 株式会社鴻池組 | Prestressed concrete pillar having pc strand mounted in x-shape therein under tension |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017198027A (en) * | 2016-04-28 | 2017-11-02 | 株式会社竹中工務店 | Foundation beam joining structure |
| JP2018145594A (en) * | 2017-03-01 | 2018-09-20 | 戸田建設株式会社 | Reinforcing method for column-to-beam joint using folded bars and controlling method for yield hinge position |
| JP2018145595A (en) * | 2017-03-01 | 2018-09-20 | 戸田建設株式会社 | Controlling method for yield hinge position using folded bars and control structure thereof |
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