JPH01310033A - Shear reinforcing structure for pillar/beam junction in steel framed reinforced concrete structure - Google Patents
Shear reinforcing structure for pillar/beam junction in steel framed reinforced concrete structureInfo
- Publication number
- JPH01310033A JPH01310033A JP14013788A JP14013788A JPH01310033A JP H01310033 A JPH01310033 A JP H01310033A JP 14013788 A JP14013788 A JP 14013788A JP 14013788 A JP14013788 A JP 14013788A JP H01310033 A JPH01310033 A JP H01310033A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- pillar
- column
- concrete
- shear
- 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 abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 25
- 238000010008 shearing Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000009415 formwork Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は鉄骨鉄筋コンクリート若しくは鉄骨コンクリ
ートからなる柱と鉄骨材からなる梁との柱梁接合部の剪
断補強構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a shear reinforcement structure for a column-beam joint between a column made of steel-framed reinforced concrete or steel-framed concrete and a beam made of steel frame material.
（従来の技術）
一般に鉄骨鉄筋コンクリート構造若しくは鉄骨コンクリ
ート構造は鉄筋コンクリート構造より靭性が高く、極め
て耐震的であることから、中高層建物は鉄骨鉄筋コンク
リート構造若しくは鉄骨コンクリート構造とすることが
多い。(Prior Art) In general, steel-framed reinforced concrete structures or steel-framed concrete structures have higher toughness than reinforced concrete structures and are extremely earthquake resistant, so mid-to-high-rise buildings are often made of steel-framed reinforced concrete structures or steel-framed concrete structures.
又、建物をこの種の構造とする場合、柱や梁の骨組の全
てを鉄骨鉄筋コンクリート構造若しくは鉄骨コンクリー
ト構造とするのではな（、柱のみを鉄骨鉄筋コンクリー
ト構造や鉄骨コンクリート構造とし、梁は鉄骨構造とす
る場合が増えている。In addition, when building a building with this type of structure, do not make the entire frame of columns and beams a steel-framed reinforced concrete structure or steel-framed concrete structure. Increasingly, this is the case.
従来、このような構造の柱梁接合部の剪断耐力は、柱梁
とも鉄骨鉄筋コンクリート構造若しくは鉄骨コンクリー
ト構造の場合よりも小さくなり不利であった。Conventionally, the shear strength of the column-beam joint in such a structure was disadvantageous because it was smaller than that in a steel-frame reinforced concrete structure or a steel-frame concrete structure.
この種の構造に於いても、柱梁接合部のコンクリートパ
ネルの終局剪断耐力ｃＱｕは鉄骨鉄筋コンクリ−１・構
造計算規阜同解説（日本建築学会発行）によれば次式に
よって算定される。Even in this type of structure, the ultimate shear strength cQu of the concrete panel at the column-beam joint is calculated by the following formula according to the Steel Frame Reinforced Concrete 1 Structural Calculation Code Commentary (published by the Architectural Institute of Japan).
ｃＱｕ＝（＜ ・ｅＡｃ
Ｃ−−コンクリートの終局剪断応力度
ｃＡｅ＝コンクリートパネル部の有効剪断面積
ｃ Ａ ｅ ＝０．５（ｂ（＋ ｂｂ） ・Ｊ ｃｂ
ｂ−梁幅
’ｂ（＝柱幅
、Ｊ ｃ−往の鉄筋コンクリート部分断面の応力中心間
距離（第９図参照）
上式中、０．５（ｂｂ＋ ｂｃ ）はコンクリートパネ
ルの有効幅で、梁が鉄筋コンクリートや鉄骨鉄筋コンク
リート構造のような充実断面の場合は、ｂｂは梁幅と同
じとしてよいが、梁が１］形鋼等の鉄骨材の場合には、
ｂｂはＯとし、ｃＡｅ−０，５ｂｃとする必要がある。cQu=(< ・eAc C--Ultimate shear stress of concrete cAe=effective shear area of concrete panel c A e =0.5(b(+bb) ・J cb
b - Beam width 'b (=column width, J c - Distance between stress centers of the previous reinforced concrete partial cross section (see Figure 9) In the above formula, 0.5 (bb + bc) is the effective width of the concrete panel, and the width of the beam If the beam is a solid cross section such as reinforced concrete or steel reinforced concrete structure, bb may be the same as the beam width, but if the beam is made of steel frame material such as section steel,
bb must be O and cAe-0.5bc.
従って、梁がＨ形鋼のような鉄骨梁の場合には、柱梁接
合部のコンクリートパネルのを効幅は梁幅とは全く関係
なく決まってしまい、この部分の剪断耐力が不足するこ
とがある。Therefore, if the beam is a steel beam such as an H-beam, the effective width of the concrete panel at the column-beam joint is determined completely independent of the beam width, and the shear strength of this part may be insufficient. be.
この為、従来、柱梁接合部にフープ筋を割増しして配筋
したり、接合部のコンクリート表面に鋼板を巻き付ける
等してコンクリートパネル部分の剪断補強を行っていた
。For this reason, in the past, concrete panels were shear reinforced by placing additional hoop reinforcements at the column-beam joints or by wrapping steel plates around the concrete surface of the joints.
（発明が解決しようとする課題）
しかしながら、フープ筋の割増しや鋼板の巻き付けによ
る剪断補強は、必ずしもこれらの鋼材の全断面が有効に
働くわけではないので、効率が余り良くなく、自ずと限
界があった。(Problem to be solved by the invention) However, shear reinforcement by adding hoop reinforcement or wrapping steel plates does not necessarily work effectively with the entire cross section of these steel materials, so it is not very efficient and has its own limitations. Ta.
又、柱梁接合部は鉄骨材どうし、或いは鉄骨材と鉄筋が
複雑に交錯する為、フープ筋を割増ししたりする作業は
面倒になり易いものであった。In addition, since steel frames or steel frames and reinforcing bars intersect in a complicated manner at column-beam joints, adding additional hoop reinforcements tends to be troublesome.
この発明はこのような前記従来の問題点を解決する為に
提案されたもので、柱梁接合部の剪断補強を効率的に行
うことができ、然も施工も簡単に行うことができる鉄骨
鉄筋コンクリート若しくは鉄骨コンクリートからなる柱
と鉄骨材からなる梁との柱梁接合部の剪断補強構造を提
供することを目的とするものである。This invention was proposed in order to solve the above-mentioned conventional problems, and it is a steel-framed reinforced concrete that can efficiently perform shear reinforcement of column-beam joints and is also easy to construct. Another object of the present invention is to provide a shear reinforcement structure for a column-beam joint between a column made of steel-framed concrete and a beam made of steel-framed material.
（課題を解決するための手段）
この発明は鉄骨鉄筋コンクリート構造に於ける柱梁接合
部の剪断補強構造に関するもので、前記梁端部に剪断補
強プレートを前記柱のコンクリート表面に当接した状態
に取り付け、必要により剪断補強プレートに補強リブを
取り付けることにより前記目的を達成するものである。(Means for Solving the Problems) The present invention relates to a shear reinforcement structure for a column-beam joint in a steel-frame reinforced concrete structure, in which a shear reinforcement plate is placed at the end of the beam in contact with the concrete surface of the column. The above objective is achieved by attaching reinforcing ribs to the shear reinforcing plate if necessary.
（実施例） 以下、この発明を図示する一実施例によって説明する。(Example) Hereinafter, the present invention will be explained with reference to an illustrated embodiment.
第１図支び第２図は柱が鉄骨鉄筋コンクリート構造で、
梁が鉄骨構造からなる建物の柱と梁との接合部を示した
もので、柱ＩはＨ形ｗＡ２を鉄骨材とし、その回りに複
数本の主筋３．３とフープ筋４．・・・を配筋し、且つ
コンクリート５を打設することにより構成されている。Figure 1: Support Figure 2: The column has a steel reinforced concrete structure.
This figure shows the joint between a column and a beam in a building where the beam is a steel frame structure.Column I is made of H-shaped wA2 as a steel frame material, and around it are multiple main reinforcements 3.3 and hoop reinforcements 4. It is constructed by arranging reinforcement and pouring concrete 5.
梁６には１４形鋼が使用され、当該梁６は柱１のＨ形鋼
２の梁接合部に溶接によって接合されていると共に梁６
端部の回りには柱１のコンクリート５が隙間なく完全に
充填されている。14 section steel is used for the beam 6, and the beam 6 is joined to the beam joint of the H section steel 2 of the column 1 by welding.
The concrete 5 of the column 1 is completely filled around the end without any gaps.
梁６のウェブ６ａと上下フランジ６ｂ、６ｂ間には剪断
補強プレート７．７が柱ｌのコンクリート５の表面に密
着した状態に取り付けられている。A shear reinforcing plate 7.7 is attached between the web 6a of the beam 6 and the upper and lower flanges 6b, 6b in close contact with the surface of the concrete 5 of the column l.
剪断補強プレート７．７は梁６のウェブ６ａ及び上下フ
ランジ６ｂ、６ｂに溶接することにより取り付けられて
いる。The shear reinforcement plate 7.7 is attached to the web 6a of the beam 6 and to the upper and lower flanges 6b, 6b by welding.
このような構成に於いて、柱梁接合部に大きな剪断力が
作用したとしても剪断補強プレート７゜７が柱１のコン
クリート５の表面を押圧する為、コンクリートパネルの
有効幅の計算に際し７、梁幅も有効幅として加算でき、
極めて有効な剪断補強が可能となる。In such a configuration, even if a large shear force acts on the column-beam joint, the shear reinforcing plate 7.7 will press against the surface of the concrete 5 of the column 1, so when calculating the effective width of the concrete panel, Beam width can also be added as effective width,
Extremely effective shear reinforcement becomes possible.
又、梁６から柱１へ伝達される応力の一部は剪断補強プ
レート７．７を介して伝達される為、応力の伝達も無理
がなくスムーズにおこなえる。Further, since a part of the stress transmitted from the beam 6 to the column 1 is transmitted via the shear reinforcing plate 7.7, the stress can be transmitted smoothly and without difficulty.
尚、剪断補強プレー１−７．７はＴ場で鉄骨加工の際に
、予め取り付けておいてもよいし、若しくは現場に於い
て柱１のコンクリートが硬化した後、取りつけてもよい
。The shear reinforcing play 1-7.7 may be installed in advance during steel frame processing in the T field, or may be installed after the concrete of the column 1 has hardened on site.
前者の取付方法だと社用コンクリート型枠のガイドとし
て利用できる為、型枠工事がし易くなると言うメリット
がある。The former installation method has the advantage of making formwork work easier because it can be used as a guide for company concrete formwork.
第３図〜第８図はこの発明の他の実施例を示したもので
、このうち第３図及び第４図は剪断補強プレート７の裏
側に複数枚の水平補強リブ８．８を取り付けることによ
り剪断補強プレート７の剪断補強効果を高めたものであ
る。3 to 8 show other embodiments of the present invention, of which FIGS. 3 and 4 show a plurality of horizontal reinforcing ribs 8.8 attached to the back side of the shear reinforcing plate 7. This enhances the shear reinforcing effect of the shear reinforcing plate 7.
又、第５図及び第６図は第３図及び第４図に於いて水平
補強リブ８．・・・を取り付ける替わりに垂直補強プレ
ート１１．１１を剪断補強プレート７及び上下フランジ
６ｂ、６ｂに溶接することにより−取り付けたもので、
その他の構成及び効果は第３図及び第４図の実施例と略
同じである。Furthermore, FIGS. 5 and 6 show the horizontal reinforcing ribs 8. Instead of attaching..., the vertical reinforcing plate 11.11 is attached by welding to the shear reinforcing plate 7 and the upper and lower flanges 6b, 6b,
Other configurations and effects are substantially the same as the embodiments shown in FIGS. 3 and 4.
第７図及び第８図は、この発明の他の実施例を示したも
ので、剪断補強プレート７．７及び水平補強リブ８，８
を溶接の代わりに取付ボルト１０．１０によってウェブ
６ａ、及び上下フランジ６ｂ、６ｂにボルト止めするよ
うにしたものである。7 and 8 show another embodiment of the invention, in which a shear reinforcing plate 7.7 and horizontal reinforcing ribs 8, 8 are shown.
is bolted to the web 6a and the upper and lower flanges 6b, 6b using mounting bolts 10.10 instead of welding.
（発明の効果）
この発明は以上の構成から成るので、以下の効果を有す
る。(Effects of the Invention) Since the present invention has the above configuration, it has the following effects.
■ 柱梁接合部のコンクリートパネルの有効幅の計算に
際し、梁幅も有効幅として加算できる為、柱梁接合部の
剪断耐力を著しく高めることができる。従って、フープ
筋を割増ししたり鋼板を巻き付ける方法よりも遥かに効
率の良い剪断補強を行うことができ、然も施工も極めて
簡単に行うことができる。■ When calculating the effective width of the concrete panel at the column-beam joint, the beam width can be added as the effective width, so the shear strength of the column-beam joint can be significantly increased. Therefore, it is possible to perform shear reinforcement that is much more efficient than the method of adding extra hoop reinforcement or wrapping steel plates, and it is also extremely easy to construct.
■ 梁から柱へ伝達される応力の一部は剪断補強プレー
トを介して伝達される為、柱梁間の応力の伝達も極めて
スムーズにおこなえる。■ A portion of the stress transmitted from the beam to the column is transmitted via the shear reinforcing plate, so the stress can be transmitted extremely smoothly between the column and the beam.
■ 柱梁接合部の一剪断補強方法として従来方法に追加
できる為、柱梁接合部の設計の自由度が増す。特に、過
大な剪断力に対しても、当該発明単独で或いは従来方法
との併用により簡単に対処できる。■ It can be added to the conventional method as a shear reinforcement method for beam-column joints, increasing the degree of freedom in the design of beam-column joints. In particular, excessive shearing force can be easily dealt with by the present invention alone or in combination with conventional methods.
■ 補強プレートは、コンクリート打設前に取り付けて
おけば、社用コンクリート型枠のガイドの役目もするの
で、型枠工事もし易くなる。■ If the reinforcing plate is installed before concrete pouring, it will also serve as a guide for the corporate concrete formwork, making formwork work easier.
第１図〜第６図はこの発明の一実施例を示したもので、
第１図、第３図、第５図は柱梁接合部の斜視図、第２図
、第４図及び第６図はその横断面図、第７図及び第８図
はこの発明の他の実施例を示す柱梁接合部の斜視図、第
９図は従来の柱梁接合部の斜視図である。
１・・・柱、２・・・Ｈ形鋼、３・・・主筋、４・・・
フープ筋、５・・・コンクリート、６・・・梁、７・・
・剪断補強プレート、８・・・水平補強リブ、９・・・
取付片、１０・・・取付ボルト、１１・・・垂直補強プ
レート。
第 １ ｇ
ｚ ７ 囚Figures 1 to 6 show an embodiment of this invention.
Figures 1, 3, and 5 are perspective views of the beam-column joints, Figures 2, 4, and 6 are cross-sectional views, and Figures 7 and 8 are views of other parts of the invention. FIG. 9 is a perspective view of a conventional beam-column joint. 1... Column, 2... H-shaped steel, 3... Main reinforcement, 4...
Hoop reinforcement, 5... Concrete, 6... Beam, 7...
・Shear reinforcement plate, 8...Horizontal reinforcement rib, 9...
Mounting piece, 10...Mounting bolt, 11...Vertical reinforcement plate. 1st gz 7th prisoner
Claims (1)
なる柱と鉄骨材からなる梁との柱梁接合部に於いて、前
記梁端部に剪断補強プレーを前記柱のコンクリート表面
に当接した状態に取り付けてあることを特徴とする鉄骨
鉄筋コンクリート構造物に於ける柱梁接合部の剪断補強
構造。 ２、剪断補強プレートに補強リブを取り付けたことを特
徴とする請求項第１項記載の鉄骨鉄筋コンクリート構造
物に於ける柱梁接合部の剪断補強構造。[Claims] 1. At a column-beam joint between a column made of steel-reinforced concrete or steel-framed concrete and a beam made of steel frame materials, a shear reinforcing plate is brought into contact with the concrete surface of the column at the end of the beam. A shear reinforcement structure for a column-beam joint in a steel-framed reinforced concrete structure, which is characterized by being installed in a fixed state. 2. The shear reinforcement structure for a column-beam joint in a steel-framed reinforced concrete structure according to claim 1, characterized in that a reinforcing rib is attached to the shear reinforcement plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14013788A JPH01310033A (en) | 1988-06-07 | 1988-06-07 | Shear reinforcing structure for pillar/beam junction in steel framed reinforced concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14013788A JPH01310033A (en) | 1988-06-07 | 1988-06-07 | Shear reinforcing structure for pillar/beam junction in steel framed reinforced concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01310033A true JPH01310033A (en) | 1989-12-14 |
Family
ID=15261742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14013788A Pending JPH01310033A (en) | 1988-06-07 | 1988-06-07 | Shear reinforcing structure for pillar/beam junction in steel framed reinforced concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01310033A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5310768A (en) * | 1976-07-15 | 1978-01-31 | Santo Tekkosho Kk | Method of and apparatus for continuous scouring and bleaching cloth |
-
1988
- 1988-06-07 JP JP14013788A patent/JPH01310033A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5310768A (en) * | 1976-07-15 | 1978-01-31 | Santo Tekkosho Kk | Method of and apparatus for continuous scouring and bleaching cloth |
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