JPH0657992B2 - Shear reinforcement reinforcement structure of reinforced concrete columns and beams - Google Patents
Shear reinforcement reinforcement structure of reinforced concrete columns and beamsInfo
- Publication number
- JPH0657992B2 JPH0657992B2 JP60177717A JP17771785A JPH0657992B2 JP H0657992 B2 JPH0657992 B2 JP H0657992B2 JP 60177717 A JP60177717 A JP 60177717A JP 17771785 A JP17771785 A JP 17771785A JP H0657992 B2 JPH0657992 B2 JP H0657992B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcement
- strength
- shear
- beams
- reinforced concrete
- 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 - Fee Related
Links
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造建物の柱または梁を構成す
る剪断補強筋の配筋構造に関する。Description: TECHNICAL FIELD The present invention relates to a reinforcing bar reinforcing structure constituting columns or beams of a reinforced concrete building.
（従来の技術） 近来、建築技術の発展に伴い、多くの中・高層建物が鉄
筋コンクリート構造により構築される傾向にある。しか
し乍ら、その一方では、耐震上の必要から、柱または梁
の剪断耐力および靭性の向上が強く要求されるところで
もある。(Prior art) With the recent development of building technology, many middle- and high-rise buildings tend to be constructed by reinforced concrete structures. However, on the other hand, there is also a strong demand for improvement in shear strength and toughness of columns or beams due to seismic requirements.
上記要求に応じて、本出願人は特開昭５１−１２８８１
７号公開特許公報に開示される如く、降伏点強度５５Kg
f/mm2以上の高強度スパイラル筋を主筋群の周囲に配筋
することで、剪断耐力および靭性を格段に向上したコン
クリート柱または梁を得る技術を提供している。In response to the above request, the present applicant has filed Japanese Patent Application Laid-Open No. 51-12881.
As disclosed in Japanese Patent Laid-Open No. 7-55, the yield strength is 55 kg.
By providing high-strength spiral muscles of f / mm 2 or more around the main muscle group, we are providing the technology to obtain concrete columns or beams with significantly improved shear strength and toughness.
また、本出願人は先に特願昭６０−１３４３６０号によ
り、高強度鉄筋をその有する機械的性質の低下を来さず
リング筋に形成する溶接方法および装置に関する技術も
提供している。Further, the present applicant previously provided Japanese Patent Application No. 60-134360 to provide a technique relating to a welding method and apparatus for forming a high-strength reinforcing bar on a ring reinforcing bar without lowering its mechanical properties.
ところで、上記高強度鉄筋から形成するスパイラル筋や
リング筋は降伏点強度が５５Kgf/mm2以上、例えば８０
〜１３０Kgf/mm2あり、当該高強度鉄筋を多巻回してス
パイラル状にしたり、所定長さに切断した高強度鉄筋を
折曲のうえ、両端を機械的性質の低下を来さずに溶接し
てリング状とすることは、建築現場での加工能力ではな
し得ず、工場生産に依存している。By the way, the spiral reinforcement and the ring reinforcement formed from the high-strength reinforcing bar have a yield strength of 55 Kgf / mm 2 or more, for example, 80
There ~130Kgf / mm 2, and welded or spirally turning the high strength reinforcing bar multiwinding, high strength reinforcing bar cut to a predetermined length after folding, the ends without Kisa deterioration of mechanical properties It is not possible to make it into a ring shape by the processing ability at the construction site, but it depends on the factory production.
（従来技術に存する問題点） 建物の柱および梁は、設計あるいは仕様により太さ，形
状が極めて多様である。従つて、多様な寸法，形状に応
じて構成される鉄筋工のスパイラル筋やリング筋にも、
必然的に巻径と巻回型との多様さが要求されるところで
ある。(Problems existing in the prior art) The pillars and beams of buildings have extremely various thicknesses and shapes depending on the design or specifications. Therefore, for spiral reinforcements and ring reinforcements of reinforcing bars constructed according to various sizes and shapes,
Inevitably, a variety of winding diameters and winding types are required.
しかし乍ら、設計・仕様の多様さに全て応じようとすれ
ば、高強度鉄筋をスパイラル筋またはリング筋に折曲す
る鉄筋折曲機は寸法の調整にとられる時間ばかりが多く
て稼働率は低下し、これがため製品コストの高騰を惹起
する要因となる。However, if we try to comply with all the variety of designs and specifications, a rebar bending machine that bends high-strength rebars into spiral or ring reinforcements takes a lot of time to adjust the dimensions, and the operating rate is high. This is a factor that causes a rise in product costs.
そのうえ、柱および梁を多目的，自由に設計するために
は、高強度剪断補強筋のみによる配筋だけでは満足出来
ない場合がある。Moreover, in order to design columns and beams in a versatile and flexible manner, there are cases in which reinforcement with only high-strength shear reinforcement is not sufficient.
（発明の目的） 本発明は、工場生産に依存する高強度スパイラル筋やリ
ング筋を剪断補強筋に使用して剪断耐力および靭性を向
上した、従来現場打ち柱および梁に存する上述の問題点
を解決するためになされたもので、多目的，自由な設計
で多様な鉄筋工の要求に対処し得る高剪断耐力および高
靭性を具えた柱および梁を、容易かつ安価に構築可能な
鉄筋コンクリート柱・梁の剪断補強筋配筋構造を提供す
ることを目的とする。(Object of the Invention) The present invention has the above-mentioned problems existing in conventional cast-in-place columns and beams, in which high-strength spiral reinforcements and ring reinforcements that depend on factory production are used as shear reinforcements to improve shear strength and toughness. It was made in order to solve the problem. Reinforced concrete columns and beams that can be easily and inexpensively constructed with columns and beams with high shear strength and high toughness that can meet the demands of various reinforcing bars with versatile and free design. The purpose of the present invention is to provide a shear reinforcement reinforcement structure of the.
（発明の構成） 本発明は上記目的を達成するため、鉄筋コンクリート柱
または梁を構築する場の主筋周囲に配設する剪断補強筋
を、降伏点強度５５kg/mm以上の高強度鉄筋で工場生産
されたスパイラル筋またはリング筋と、現場加工可能な
普通強度鉄筋で形成したスパイラル筋、リング筋または
連結筋との混合組合せとしたものである。(Structure of the Invention) In order to achieve the above object, the present invention is a factory production of shear reinforcing bars to be arranged around the main bars of a reinforced concrete column or beam when the strength of the yield point is 55 kg / mm or more. It is a mixed combination of spiral reinforcement or ring reinforcement and spiral reinforcement, ring reinforcement or connecting reinforcement formed of ordinary strength steel that can be processed in situ.
（発明の作用） 本発明は、工場生産した既成所定規格の高強度剪断補強
筋と現場加工設備で加工可能な普通強度剪断補強筋とを
任意に調整配筋して、太さ，形状および剪断応力の拘束
度を自由に設定した高い剪断耐力および靭性に優れた柱
および梁を構築し得る作用がある。(Operation of the Invention) The present invention is to adjust the thickness, shape, and shearing by arbitrarily adjusting and arranging factory-produced high-strength shear reinforcing bars of a predetermined standard and ordinary strength shear reinforcing bars that can be processed by on-site processing equipment. It has an action of constructing columns and beams excellent in high shear strength and toughness in which the degree of restraint of stress is freely set.
（実施例） 本発明を第１図（ａ）〜第２図（ｆ）に示す実施例に従
つて以下に詳述する。(Example) The present invention will be described in detail below with reference to an example shown in Figs. 1 (a) to 2 (f).
第１図の（ａ）〜（ｆ）はそれぞれ本発明に使用する剪
断補強筋の形状を示し、（ａ）〜（ｃ）および（ｅ）の
形状のものは降伏点強度５５Kgf/mm2以上の高強度鉄筋
１またはＳＤ３０，ＳＲ２４等の普通強度鉄筋２それぞ
れから形成し、（ｄ）および（ｆ）の形状のものは普通
強度鉄筋から形成する。ただし、高強度鉄筋１からなる
スパイラル筋および溶接リング筋は工場生産され、普通
強度鉄筋２は建築現場加工が可能である。1 (a) to (f) show the shapes of the shear reinforcing bars used in the present invention, and the shapes of (a) to (c) and (e) are the yield strength of 55 Kgf / mm 2 or more. The high-strength reinforcing bars 1 or the normal-strength reinforcing bars 2 such as SD30 and SR24 are formed, and the shapes (d) and (f) are formed from normal-strength reinforcing bars. However, the spiral reinforcement and the weld ring reinforcement made of the high-strength reinforcing bar 1 are manufactured at the factory, and the normal-strength reinforcing bar 2 can be processed on the construction site.
第２図（ａ）〜（ｆ）はそれぞれ第１図（ａ）〜（ｆ）
に示す高強度剪断補強筋１および普通強度剪断補強筋２
を混合組合わせた本発明実施例剪断補強筋配筋構造にか
かる鉄筋コンクリート柱または梁４の断面を示し、３は
主筋である。2 (a) to (f) are respectively FIGS. 1 (a) to (f).
High strength shear reinforcement 1 and normal strength shear reinforcement 2 shown in
The cross section of the reinforced concrete column or beam 4 relating to the shear reinforcing bar arrangement structure of the present invention in a mixed combination is shown, and 3 is a main bar.
第２図の（ａ）は主筋３の外周を高強度剪断補強筋１で
巻回し、中間主筋３間を普通強度剪断補強筋２で巻回お
よび連結した混合組合せからなる配筋構造であり、
（ｂ）は主筋３の外周を普通強度剪断補強筋２で巻回
し、中間主筋３間を高強度剪断補強筋１で巻回した混合
組合せからなる配筋構造であり、（ｃ）は外側主筋３の
外周を高強度剪断補強筋１で巻回し、内側主筋３の外周
を普通強度剪断補強筋２で巻回するとともに、外側中間
の主筋３間を普通強度剪断補強筋２で連結した混合組合
せからなる配筋構造であり、（ｄ）は外側主筋３の外周
を普通強度剪断補強筋２で巻回し、内側主筋３の外周を
高強度剪断補強筋１で巻回し、かつ外側中間の主筋３間
を普通強度剪断補強筋２で連結した混合組合せからなる
配筋構造である。(A) of FIG. 2 is a reinforcing bar structure composed of a mixed combination in which the outer periphery of the main bar 3 is wound with the high-strength shear reinforcing bar 1 and the intermediate main bars 3 are wound and connected with the normal-strength shear reinforcing bar 2,
(B) is a rebar structure consisting of a mixed combination in which the outer periphery of the main reinforcement 3 is wound with normal strength shear reinforcements 2 and the intermediate main reinforcements 3 are wound with high strength shear reinforcements 1, and (c) is the outer main reinforcements. The outer circumference of 3 is wound with high strength shear reinforcement 1, the outer circumference of inner main reinforcement 3 is wound with normal strength shear reinforcement 2, and the outer middle main reinforcement 3 is connected with normal strength shear reinforcement 2 (D) is a reinforcing structure consisting of the outer main bar 3 wound around the outer circumference of the outer main bar 3 with the normal strength shear reinforcing bar 2, the outer circumference of the inner main bar 3 wound with the high strength shear reinforcing bar 1, and the outer middle main bar 3 This is a reinforcing bar structure composed of a mixed combination in which spaces are connected by ordinary strength shear reinforcing bars 2.
また、第２図の（ｅ）は主筋３の外周を普通強度剪断補
強筋２で巻回し、中間主筋３の外周を円形の高強度剪断
補強筋１で巻回した混合組合せからなる配筋構造であ
り、（ｆ）は外側主筋３の外周を高強度剪断補強筋１で
巻回し、中間主筋３の外周を円形の普通強度剪断補強筋
２で巻回した混合組合せからなる配筋構造である。Further, (e) of FIG. 2 shows a rebar structure composed of a mixed combination in which the outer circumference of the main bar 3 is wound with the normal strength shear reinforcing bar 2 and the outer circumference of the intermediate main bar 3 is wound with the circular high strength shear reinforcing bar 1. (F) is a reinforcing bar structure composed of a mixed combination in which the outer periphery of the outer main bar 3 is wound with the high-strength shear reinforcing bar 1 and the outer periphery of the intermediate main bar 3 is wound with the circular normal-strength shear reinforcing bar 2. .
上記のように、混合組合せが自由に選択し得るので、工
場生産された既成高強度剪断補強スパイラル筋またはリ
ング筋１と建築現場で加工する普通強度剪断補強筋２と
で、目的・設計，仕様に応じて太さ，形状，剪断応力の
拘束度を自由に設定して、多様な柱または梁を容易に構
築することができる。As mentioned above, the mixture combination can be freely selected. Therefore, the purpose, design and specifications of the factory-produced ready-made high-strength shear reinforcing spiral or ring reinforcement 1 and the ordinary-strength shear reinforcing reinforcement 2 processed at the construction site can be selected. Various columns or beams can be easily constructed by freely setting the thickness, shape and degree of constraint of shear stress according to the requirements.
（発明の効果） 本発明を実施することにより、高強度剪断補強スパイラ
ル筋またはリング筋を生産する工場は、設計・仕様の多
様さに一々応ずる必要がなく、巻回径を複数種類に限定
して大量生産することが可能となるので、当該高強度剪
断補強スパイラル筋またはリング筋を廉価で提供し得る
こととなり、その結果として目的・設計，仕様上からの
要求に応じた多様な柱や梁を高い耐震性を持たせて廉価
に構築可能となり、される効果は甚大である。(Effects of the Invention) By implementing the present invention, a factory that produces high-strength shear reinforcement spiral reinforcement or ring reinforcement does not need to respond to various designs and specifications one by one, and the winding diameter is limited to a plurality of types. Since it is possible to mass-produce it, it is possible to provide the high-strength shear reinforcement spiral reinforcement or ring reinforcement at a low price, and as a result, various columns and beams that meet the requirements from the purpose, design, and specifications. It will be possible to build a high price with high earthquake resistance, and the effect will be enormous.
第１図（ａ）〜（ｆ）はそれぞれ本発明に使用される高
強度または普通強度剪断補強筋の形状を示す正面図、第
２図（ａ）〜（ｆ）はそれぞれ本発明剪断補強筋配筋構
造を実施した鉄筋コンクリート柱または梁の断面図であ
る。 １……高強度鉄筋で形成したスパイラル筋またはリング
筋 ２……普通強度で形成したスパイラル筋，リング筋また
は連結筋 ３……主筋 ４……鉄筋コンクリート柱または梁1 (a) to (f) are front views showing the shapes of high-strength or normal-strength shear reinforcing bars used in the present invention, and FIGS. 2 (a) to (f) are shear reinforcing bars of the present invention. It is sectional drawing of the reinforced concrete column or beam which implemented the reinforcement structure. 1 ... Spiral reinforcement or ring reinforcement formed of high-strength reinforcement 2 ... Spiral reinforcement, ring reinforcement or connecting reinforcement formed of normal strength 3 ... Main reinforcement 4 ... Reinforced concrete column or beam
Claims (1)
合の主筋周囲に配設する剪断補強筋を、降伏点強度５５
Kg/mm以上の高強度鉄筋で工場生産されたスパイラル筋
またはリング筋と、現場加工可能な普通強度鉄筋で形成
したスパイラル筋、リング筋または連結筋との混合組合
せとしたことを特徴とする鉄筋コンクリート柱・梁の剪
断補強筋配筋構造。Claim: What is claimed is: 1. When a reinforced concrete column or beam is constructed, a shear reinforcing bar arranged around the main bar is used as the yield point strength 55.
Reinforced concrete characterized by being a mixed combination of spiral reinforcement or ring reinforcement produced in the factory with high strength reinforcement of Kg / mm or more, and spiral reinforcement, ring reinforcement or connecting reinforcement formed by normal strength reinforcement that can be processed in the field Shear reinforcement structure for columns and beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60177717A JPH0657992B2 (en) | 1985-08-14 | 1985-08-14 | Shear reinforcement reinforcement structure of reinforced concrete columns and beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60177717A JPH0657992B2 (en) | 1985-08-14 | 1985-08-14 | Shear reinforcement reinforcement structure of reinforced concrete columns and beams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6241853A JPS6241853A (en) | 1987-02-23 |
| JPH0657992B2 true JPH0657992B2 (en) | 1994-08-03 |
Family
ID=16035875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60177717A Expired - Fee Related JPH0657992B2 (en) | 1985-08-14 | 1985-08-14 | Shear reinforcement reinforcement structure of reinforced concrete columns and beams |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657992B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101458434B1 (en) * | 2013-03-08 | 2014-11-05 | 삼성물산 주식회사 | Half precast concrete column manufacturing method using prefabricated PC panels and constructing method using the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2872247B2 (en) * | 1988-06-21 | 1999-03-17 | 久司 小嶋 | Pulse injection compression molding method |
| JP3604271B2 (en) * | 1998-01-30 | 2004-12-22 | 東京鐵鋼株式会社 | Reinforced concrete connection structure |
| JP5774323B2 (en) * | 2011-02-01 | 2015-09-09 | 大成建設株式会社 | Shear strength calculation method for prestressed concrete beams. |
| JP6359249B2 (en) * | 2013-07-03 | 2018-07-18 | 高周波熱錬株式会社 | Reinforcing bar structure and construction method of reinforcing bar structure |
| JP6359250B2 (en) * | 2013-07-03 | 2018-07-18 | 高周波熱錬株式会社 | Reinforcing bar structure and construction method of reinforcing bar structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025589B2 (en) * | 1975-05-01 | 1985-06-19 | 高周波熱錬株式会社 | How to arrange threaded reinforcing bars |
-
1985
- 1985-08-14 JP JP60177717A patent/JPH0657992B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101458434B1 (en) * | 2013-03-08 | 2014-11-05 | 삼성물산 주식회사 | Half precast concrete column manufacturing method using prefabricated PC panels and constructing method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6241853A (en) | 1987-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |