JPH0732689Y2 - Shear reinforcement structure of flat slab - Google Patents
Shear reinforcement structure of flat slabInfo
- Publication number
- JPH0732689Y2 JPH0732689Y2 JP8546188U JP8546188U JPH0732689Y2 JP H0732689 Y2 JPH0732689 Y2 JP H0732689Y2 JP 8546188 U JP8546188 U JP 8546188U JP 8546188 U JP8546188 U JP 8546188U JP H0732689 Y2 JPH0732689 Y2 JP H0732689Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing
- slab
- steel material
- column
- reinforcing steel
- 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
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- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
【考案の詳細な説明】 [産業上の利用分野] 本考案は、鉄筋コンクリート造建築物の柱頭部に直接支
持されるフラットスラブの柱頭部の補強構造に係り、と
くに、柱頭部に接続するスラブのコンクリート内に鋼材
を配してスラブの基端部を剪断力に対して補強するよう
したフラットスラブの剪断補強構造に関するものであ
る。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a reinforcement structure for a column head of a flat slab directly supported by the column head of a reinforced concrete building, and particularly to a slab connected to the column head. The present invention relates to a shear reinforced structure of a flat slab in which a steel material is arranged in concrete to reinforce the base end of the slab against shearing force.
[従来の技術] 鉄筋コンクリート造の建築物の柱頭部に、梁を架設する
ことなく、スラブを四隅の柱で直接支持するようにした
フラットスラブ工法が行われるようになった。この工法
は、倉庫等の大スパンの建築物の空間利用効率を高める
ために、無梁床版構造を採用し、なお、柱頭部にキャピ
タルを設けないようにするものであるが、そのために
は、 スラブの厚さを増す、 コンクリートの強度を増す、 スラブの鉄筋量を増す、 補強部に鉄骨、鋼板等の鋼材を配置する、 等のスラブ隅部の補強が必要である。[Prior Art] A flat slab construction method has been adopted in which slabs are directly supported by columns at four corners without installing beams on column heads of reinforced concrete structures. This construction method adopts a beamless floor slab structure in order to improve the space utilization efficiency of buildings with large spans such as warehouses, and does not provide capital on the pillar head. It is necessary to reinforce the corners of the slab, such as increasing the thickness of the slab, increasing the strength of concrete, increasing the amount of rebar in the slab, and arranging steel materials such as steel frames and steel plates in the reinforcement.
上記の各手段のうちでもっとも簡単な補強方法は、いわ
ゆるベンド筋を使用するものであるが、柱に梁を架設し
た通常のスラブでは外周での上端鉄筋がスラブの反曲点
で折り下げられて、中央部の下端筋に接続され、または
下端筋になるような主筋の配筋方法として知られている
ものである。The simplest reinforcement method among the above-mentioned means is to use so-called bend bars.However, in a normal slab in which a beam is erected on a column, the upper end reinforcing bar at the outer periphery is folded down at the inflection point of the slab. Then, it is known as a method of arranging the main muscles so as to be connected to the lower end muscles of the central portion or become the lower end muscles.
[考案が解決しようとする課題] ところが、従来の「フラットスラブ工法」では、前記の
各補強手段のうち、 では、版厚が大きくなるとコンクリート量が増大し、
重量の増加は架構からひいては基礎工事にまで影響し、
工事量の増大で施工期間も延引するばかりでなく、さら
に版厚を大きくするように影響して原因と結果が悪循環
する。[Problems to be solved by the invention] However, in the conventional "flat slab method", among the above-mentioned reinforcing means, the concrete amount increases as the plate thickness increases,
The increase in weight affects everything from the frame to the foundation work,
Due to the increase in the construction amount, not only the construction period is extended but also the plate thickness is further increased to cause a vicious cycle of causes and effects.
では、コンクリート強度は主として使用セメント量や
水量の影響であり、有効ではあるが、高強度のものほど
品質管理が重要であり、大工事には適さず、セメント自
体を高強度のものにすることは費用を増大させる。Therefore, concrete strength is mainly influenced by the amount of cement used and the amount of water used, but it is effective, but quality control is important for higher strength ones, and it is not suitable for large construction, and cement itself should be made high strength. Increases costs.
補強鋼材、とくに鉄筋量による方法では、鋼材使用量
の増大は直接コストを上昇させ、柱頭部の配筋が交錯し
て施工性が低下する。In the method using reinforced steel, especially the amount of reinforcing steel, an increase in the amount of steel used directly raises the cost, and the bar arrangement of the stilts intersects with each other, resulting in poor workability.
そこで、プレストレス工法を採用することは、応力の面
での手段に準ずるが、の版厚に規制されてライズが
小さいケーブルの配線では、有効な応力の導入が期待で
きないばかりでなく、と同様に、柱頭部での定着が錯
綜するから、柱周囲での平行配線に止まり、柱を中心と
する放射状の配線ができない。Therefore, adopting the prestressing method is similar to the method in terms of stress, but it is not only not possible to expect effective introduction of stress in the case of cable wiring that is regulated by the plate thickness and has a small rise, Moreover, since the fixation at the head of the pillar is complicated, it is not possible to make parallel wiring around the pillar, and radial wiring centered on the pillar cannot be formed.
一方、梁を架設しないフラットスラブ工法では、主筋の
ベンドによる剪断補強は、梁に支持されるスラブの反曲
点では有効であるが、梁を架設しないスラブの柱頭部の
近傍で、ベンド鉄筋によって補強するには、その定着部
が同様に配筋を錯綜させ施工が困難であるため、そのよ
うな提案は行われておらず、フラットスラブ工法の進展
に課題を残すものとなっていた。On the other hand, in the flat slab method where no beam is erected, the shear reinforcement by bending the main bar is effective at the inflection point of the slab supported by the beam, but in the vicinity of the column head of the slab where no beam is erected, bend reinforcement is used. In order to reinforce, since the anchoring part also complicates the reinforcing bar and construction is difficult, such a proposal has not been made, and a problem remains in the progress of the flat slab method.
[課題を解決するための手段] 本考案は、上記のような現状に鑑み、従来の課題を解決
すべく創案されたものであって、その目的とするところ
は、鉄筋コンクリート造建築物の柱頭部に直接支持され
るフラットスラブの柱頭部周囲の補強構造において、水
平な上辺と垂直な両脚部とを有する補強鋼材を、柱の頂
部を通過する上端鉄筋に少なくとも上辺を係着させたま
ま、スラブ面に対し両脚部を傾斜させて配設したことを
特徴とするものである。[Means for Solving the Problems] The present invention was devised in order to solve the conventional problems in view of the above-mentioned current situation, and the purpose thereof is to provide a pillar head of a reinforced concrete building. In a reinforcement structure around a stilt head of a flat slab directly supported by the slab, a reinforcing steel material having a horizontal upper side and two vertical legs is attached to the upper end reinforcing bar passing through the top of the column at least on the upper side. It is characterized in that both legs are arranged to be inclined with respect to the plane.
これによって、フラットスラブ工法の前提となるスラブ
の隅部の耐剪断力構造が改善され、しかも、剪断補強鉄
筋の形状や組合せ構造を種々に変更する実施態様を与え
て、柱頭部におけるスラブの支持において、耐剪断構造
を合理化することができるようにしたものである。This improves the shear-resistant structure at the corners of the slab, which is the premise of the flat slab construction method, and also provides an embodiment in which the shape and combination structure of the shear reinforcement bars are variously changed to support the slab on the stilts. In the above, the shear resistant structure can be rationalized.
[作用] 本考案のフラットスラブの剪断補強構造では、スラブの
上端、下端鉄筋を配筋後、柱の各辺に平行した部分で、
上端鉄筋と下端鉄筋との間に、スラブ面に対して両脚部
を傾斜させたまま補強鋼材を配置する。この補強鋼材
は、水平の上辺と両脚部とで門形に形成されており、2
本以上の上端鉄筋に上辺を跨がらせ、かつ下端鉄筋に向
けて両脚部を傾斜させて装着し、さらに柱の各辺に平行
して複数個配置される上記各補強鋼材を、柱の各辺の近
傍で密にその外側は疎となるように配置間隔を漸次拡げ
て設置する。[Operation] In the shear reinforced structure of the flat slab of the present invention, after arranging the upper and lower end reinforcing bars of the slab, the parts parallel to each side of the pillar are
A reinforcing steel material is arranged between the upper and lower reinforcing bars with both legs inclined with respect to the slab surface. This reinforced steel material is formed in a gate shape with the horizontal upper side and both legs.
Straddle the upper side of the upper rebar more than or equal to this, and attach the two legs inclining toward the lower rebar, and further install each of the above-mentioned reinforcing steel materials arranged in parallel to each side of the column, It is installed by gradually expanding the arrangement interval so that the outside is densely sparse in the vicinity of the side.
上記補強鋼材は、連続波形に形成した角波形の鋼材を使
用し、主筋の直交方向に装着する。ここで角波形の凸部
の間隔を上端鉄筋の間隔に適応させて跨がらせ、鉄筋の
中間に挿入される下部の水平部を下端鉄筋に係着するよ
うにする。また、連続波形の部材を個々の門形部材で形
成し、これを複数個連設させると、装着が容易であり、
鉄筋の配筋間隔に影響されることがない。この門形の補
強鋼材も、脚部の下端を連続して一連の波形部材として
使用することができる。さらに、上記の一連の波形鉄筋
を下辺で切断してハット形の単体にし、脚部をアンカー
部にして門形の補強鋼材の変形とすることができる。こ
れらの補強鋼材のコンクリート中での定着のために、ア
ンカー部として門形鋼材の両脚下端にコブ形を形成した
り、板体を固着したりすることもできる。As the reinforcing steel material, a square corrugated steel material formed into a continuous corrugation is used, and the reinforcing steel material is mounted in a direction orthogonal to the main bars. Here, the intervals of the convex portions of the angular waveform are adapted to the intervals of the upper-end reinforcing bars so as to straddle them, and the lower horizontal part inserted in the middle of the reinforcing bars is attached to the lower-end reinforcing bars. In addition, if a continuous corrugated member is formed of individual gate-shaped members and a plurality of such members are connected in series, the mounting is easy,
It is not affected by the rebar spacing. This portal-shaped reinforcing steel material can also be used as a series of corrugated members by continuously connecting the lower ends of the legs. Further, the series of corrugated reinforcing bars described above can be cut at the lower side to form a hat-shaped single body, and the leg portions can be used as anchor portions to transform the portal-shaped reinforcing steel material. In order to fix these reinforcing steel materials in concrete, it is also possible to form a hump shape at the lower ends of both legs of the gate-shaped steel material as anchor portions or to fix the plate body.
このように形成した補強鋼材は、従来知られたベンド筋
と同様に剪断補強鋼材として作用し、しかも、スラブの
柱頭部隅部内での配置、装着が容易であり、柱の外周に
合理的な間隔で複列に配置することができるから、スラ
ブの隅部のパンチング耐力が増大する。事務所建築にお
いて、スラブの厚さを15cmとし、補強鋼材を径6mmの異
形筋にしたときの、実験の結果では、終局設計耐力が60
トン必要であるのに対して、耐力は65トン以上であっ
た。また、補強鋼材の形状や配置に各種の変化を与えて
あるから、設計に対応する自由度が大きい。The reinforcing steel material formed in this way acts as a shear reinforcing steel material similar to the conventionally known bend muscles, and moreover, it is easy to arrange and mount in the corner portion of the column head of the slab, and it is rational to the outer periphery of the column. Punching strength at the corners of the slab is increased because they can be arranged in multiple rows at intervals. In the office building, when the thickness of the slab was 15 cm and the reinforcing steel material was deformed with a diameter of 6 mm, the experimental results showed that the ultimate design proof stress was 60
The required yield capacity was 65 tons or more, while the tons required. Further, since the shape and arrangement of the reinforcing steel material are variously changed, the degree of freedom in designing is high.
[実施例] 本考案のフラットスラブの剪断補強構造を実施例の図面
に基づいて詳細に説明する。第1図はフラットスラブの
隅部が会合する柱部分の平面図であり、左半部は上面、
右半部は下面を示して配筋間隔が異なることを示してい
る。第2図は柱頭部の垂直断面図である。[Embodiment] The shear reinforcement structure of a flat slab of the present invention will be described in detail with reference to the drawings of an embodiment. FIG. 1 is a plan view of a pillar portion where the corners of the flat slab meet, the left half is the upper surface,
The right half shows the lower surface, showing that the bar arrangement intervals are different. FIG. 2 is a vertical cross-sectional view of the column head.
図において、1は鉄筋コンクリート造の柱、2は柱の主
筋、3はフラットスラブ、4はスラブ3の上端鉄筋、5
は下端鉄筋であり、フラットスラブ3は柱間に梁を架設
することなく、四隅部を直接柱頭部に支持されている。
10は柱1の柱頭部の周囲に配置された本考案の主部をな
す補強鋼材であり、補強鋼材10の下端部にはアンカー部
20が形成してある。補強鋼材10は、柱1の各辺に平行に
スラブ3の隅部に複数列配置され、図中では2列に8本
設置されている。各列は、補強鋼材10と柱1の辺との間
隔aより2列目の間隔bを大きくして剪断補強量を加減
してある。In the figure, 1 is a reinforced concrete pillar, 2 is a main pillar of the pillar, 3 is a flat slab, 4 is a top reinforcing bar of the slab 3, 5
Is a rebar at the lower end, and the flat slab 3 is directly supported by the pillar heads at the four corners without installing beams between the pillars.
Reference numeral 10 denotes a reinforcing steel material which is the main part of the present invention and is arranged around the pillar head of the pillar 1. An anchor portion is provided at the lower end of the reinforcing steel material 10.
20 are formed. The reinforcing steel materials 10 are arranged in a plurality of rows at the corners of the slab 3 parallel to the respective sides of the pillar 1, and eight in two rows in the figure. In each row, the spacing b in the second row is made larger than the spacing a between the reinforcing steel material 10 and the side of the column 1 to adjust the amount of shear reinforcement.
第3図には、本考案の剪断補強構造に使用される補強鋼
材10の基本的な形状のものをスラブ3の断面図で示して
あり、a図は正面図、b図は側面図である。補強鋼材10
は全体として角波形に曲成されており、平行する凹凸の
上辺11と下辺12とを脚部13を介して接続して一連状の連
続材として形成してある。FIG. 3 is a sectional view of the slab 3 showing a basic shape of the reinforcing steel material 10 used in the shear reinforcing structure of the present invention, wherein a figure is a front view and b figure is a side view. . Reinforced steel 10
Is bent into an angular corrugation as a whole, and parallel upper and lower sides 11 and 12 are connected via a leg 13 to form a continuous material.
上記脚部13の高さで決まる補強鋼材10の上下幅は、スラ
ブ3の上下主筋4、5の間隔を傾斜角αで接続する寸法
であり、その長さは、柱1の側辺に間隔aをおいて囲繞
する長さとするが、なお下辺12に延長部14を加えるのが
よい。The vertical width of the reinforcing steel material 10 determined by the height of the leg portion 13 is a dimension that connects the intervals between the upper and lower main reinforcements 4 and 5 of the slab 3 at the inclination angle α, and the length thereof is the distance between the sides of the column 1. Although the length is set to enclose a, the extension 14 is preferably added to the lower side 12.
また、上辺11の長さは上端鉄筋4の2本以上の間隔に跨
がる寸法として、上端鉄筋4の上面から挿入して所定位
置に装着させ、下辺12は上端鉄筋4の間を通過する長さ
で挿入され、アンカー部である。延長部14は上端鉄筋4
をかわして挿入し、下端鉄筋5に当接する。実施例で
は、補強鋼材10には径6mmの異形鉄筋を使用した。傾斜
角αは通常45°である。下辺12の位置は、図示のよう
に、必ずしも下端鉄筋5の位置に対応しないが、補強鋼
材10は一連に一体であるから、下辺12の適宜の位置で下
端鉄筋5に結束して安定して支持させ、補強鋼材10全体
のアンカー部とすることができる。Further, the length of the upper side 11 is such that the upper side reinforcing bar 4 extends over two or more intervals, and is inserted from the upper surface of the upper side reinforcing bar 4 and attached at a predetermined position, and the lower side 12 passes between the upper side reinforcing bars 4. It is inserted in the length and is the anchor part. Extension 14 is top rebar 4
Dodge and insert, and contact the lower end reinforcing bar 5. In the example, the reinforcing steel material 10 was a deformed bar having a diameter of 6 mm. The inclination angle α is usually 45 °. The position of the lower side 12 does not necessarily correspond to the position of the lower end reinforcing bar 5 as shown in the figure, but since the reinforcing steel material 10 is integrated in a series, the lower side 12 is bound to the lower end reinforcing bar 5 at an appropriate position and stably. It can be supported and used as an anchor portion for the entire reinforcing steel material 10.
第4図は補強鋼材の他の実施例を示し、補強鋼材10の連
続する角波形を個々の門形の連続と考えて、単体の門形
補強鋼材10Aを形成し、その多数のものを補強鋼材10と
して配置したものである。この門形補強鋼材10Aは、上
辺11と両脚部13とアンカー部材20とからなっている。上
辺11の長さは前例と同様に上端鉄筋4の間隔に対応し、
脚部13の長さは、スラブ3の型枠6の上面で所定の傾斜
角αに支持される長さに設定する。アンカー部材20は、
脚部13の下端にコブ21を形成したものでよく、前例の補
強鋼材10を各下辺12で切断し、ハット形に作成したもの
でもよい。Fig. 4 shows another embodiment of the reinforcing steel material. Considering the continuous angular waveform of the reinforcing steel material 10 as the continuation of each gate shape, a single portal-shaped reinforcing steel material 10A is formed and many of them are reinforced. It is arranged as a steel material 10. The gate-shaped reinforcing steel material 10A includes an upper side 11, both leg portions 13, and an anchor member 20. The length of the upper side 11 corresponds to the interval between the upper reinforcing bars 4 as in the previous example,
The length of the leg portion 13 is set to a length that is supported by the upper surface of the mold 6 of the slab 3 at a predetermined inclination angle α. The anchor member 20 is
The leg 13 may have a bump 21 formed at the lower end thereof, or the reinforcing steel material 10 of the preceding example may be cut at each lower side 12 to have a hat shape.
次に、第5図には補強鋼材のさらに他の実施例を示し、
前例における下端鉄筋5上の支持方法を改善している。
この例では、下端鉄筋5上に定着部材として鉄筋15を配
置し、上記の門形の補強鋼材10Aの脚部13の下部を支承
したうえで、各補強鋼材10Aごとに結束して連続させ、
補強鋼材10が所定の傾斜角αになるようにしてある。従
って、補強鋼材10Aの脚部13の下端を、前例のように型
枠6上に支持することを必要とせず、脚部13の下端を型
枠6面から離間させることができる。そして、この例で
は、アンカー部20の他の例として、板体22を溶接して形
成したものをも示してあり、定着効果を改善している。
もちろん、この例においてもアンカー部20に前記の例の
構成を採用することもできる。Next, FIG. 5 shows still another embodiment of the reinforcing steel material,
The support method on the lower end reinforcing bar 5 in the previous example is improved.
In this example, the reinforcing bar 15 is arranged as a fixing member on the lower end reinforcing bar 5, and the lower portion of the leg portion 13 of the above-mentioned gate-shaped reinforcing steel material 10A is supported, and then each reinforcing steel material 10A is bound and continuous,
The reinforcing steel material 10 has a predetermined inclination angle α. Therefore, it is not necessary to support the lower ends of the legs 13 of the reinforcing steel material 10A on the mold 6 as in the previous example, and the lower ends of the legs 13 can be separated from the surface of the mold 6. In addition, in this example, as another example of the anchor portion 20, a plate body 22 formed by welding is also shown, and the fixing effect is improved.
Of course, also in this example, the configuration of the above example can be adopted for the anchor portion 20.
[考案の効果] これを要するに、本考案は、鉄筋コンクリート造建築物
の柱頭部に直接支持されるフラットスラブの柱頭部周囲
の補強構造において、水平な上辺と垂直な両脚部とを有
する補強鋼材を、柱の頂部を通過する上端鉄筋に少なく
とも上辺を係着させたまま、スラブ面に対し両脚部を傾
斜させて配設したから、補強鋼材は通常の材料から容易
に製作することができ、スラブの上端鉄筋の上方から挿
入するだけで容易に装着され、フラットスラブの隅部の
柱頭部での支持構造に確実に剪断力に対する補強ができ
る。さらに、定着部材の併用が可能であり、しかも、限
られたスラブの版厚内に埋設されるから、厚さが15cm程
度のスラブへの適用が可能であり、スラブ隅部の構造が
おおげさにならず、施工は至って簡単である。また、実
施の態様では、波形と門形の製作、形成の自由度が大き
く、下端鉄筋上での安定した装着が可能であり、しかも
コンクリート中への定着長が不要であるから、柱頭部の
配筋が込みあわず、コンクリートの打設が容易である。
従って、本考案は、従来の「フラットスラブ工法」のス
ラブ支持の構造を格段に進展させ、建設業界にまことに
有意義な実用的効果を有する工法を提供することができ
る。[Effect of the Invention] In summary, the present invention provides a reinforcing steel material having a horizontal upper side and two vertical legs in a reinforcing structure around a pillar head of a flat slab directly supported by a pillar head of a reinforced concrete building. , The reinforcement steel material can be easily manufactured from ordinary materials because both legs are inclined with respect to the slab surface while at least the upper side is attached to the upper end reinforcing bar passing through the top of the pillar. It can be easily installed simply by inserting it from above the upper rebar, and the support structure at the column head of the corner of the flat slab can be reliably reinforced against shearing force. Furthermore, a fixing member can be used together, and since it is embedded within the plate thickness of a limited slab, it can be applied to a slab with a thickness of about 15 cm, and the structure of the corner of the slab is overwhelming. No, the construction is extremely easy. In addition, in the embodiment, since there is a large degree of freedom in manufacturing and forming the corrugated shape and the gate shape, stable mounting on the lower end reinforcing bar is possible, and further, there is no need for a fixing length in concrete. The bar arrangement is not complicated and it is easy to place concrete.
Therefore, the present invention can significantly improve the conventional slab support structure of the "flat slab construction method" and provide a construction method having a very significant practical effect in the construction industry.
図面は本考案の実施例を示し、第1図は本考案のフラッ
トスラブの柱頭部の構造を示す平面図、第2は柱頭部の
垂直断面図である。第3図は本考案の補強構造を採用し
たスラブの断面図、第4図および第5図は本考案の他の
実施例を示す断面図であり、それぞれa図は補強鋼材正
面図、b図に側面図を示す。 1……鉄筋コンクリート柱、3……フラットスラブ、4
……上端鉄筋、5……下端鉄筋、6……型枠、10、10A
……補強鋼材、11……水平の上辺、12……下辺、13……
脚部、14……延長部、15……定着部材、20……アンカー
部、21……コブ、22……板体、a、b……間隔、α……
傾斜角1 is a plan view showing the structure of a stilt head of a flat slab according to the present invention, and FIG. 2 is a vertical sectional view of the stilt head. FIG. 3 is a sectional view of a slab adopting the reinforcing structure of the present invention, and FIGS. 4 and 5 are sectional views showing other embodiments of the present invention. A side view is shown in. 1 ... Reinforced concrete columns, 3 ... Flat slabs, 4
...... Upper end rebar, 5 …… Lower end rebar, 6 …… Formwork, 10, 10A
…… Reinforced steel material, 11 …… Horizontal upper side, 12 …… Lower side, 13 ……
Legs, 14 ... extension, 15 ... Fixing member, 20 ... anchor, 21 ... bub, 22 ... plate, a, b ... spacing, α ...
Inclination angle
Claims (4)
支持されるフラットスラブの柱頭部周囲の補強構造にお
いて、水平な上辺と垂直な両脚部とを有する補強鋼材
を、柱の頂部を通過する上端鉄筋に少なくとも上辺を係
着させたまま、スラブ面に対し両脚部を傾斜させて配設
したことを特徴とするフラットスラブの剪断補強構造。1. A reinforcing structure around a column head of a flat slab directly supported by a column head of a reinforced concrete building, wherein a reinforcing steel material having a horizontal upper side and vertical two legs passes through an upper end of the column. A shear reinforcing structure for a flat slab, wherein both legs are inclined with respect to the slab surface while at least the upper side is attached to the reinforcing bar.
して柱の一辺よりも長い角波形の連続材として形成さ
れ、上辺は複数の上端鉄筋に跨がり、かつ下辺は下端鉄
筋に接続されることを特徴とする請求項1記載のフラッ
トスラブの剪断補強構造。2. The reinforcing steel material is formed as a continuous material having an angular corrugation longer than one side of a column via a lower side parallel to the upper side, the upper side straddles a plurality of upper end reinforcing bars, and the lower side is connected to a lower end reinforcing bar. The shear reinforcement structure for a flat slab according to claim 1, wherein
をそれぞれ形成し、当該各補強鋼材を柱の各辺に平行し
て並列状に複数個配置したことを特徴とする請求項1記
載のフラットスラブの剪断補強構造。3. An anchor portion is formed at each of the lower ends of both legs of the reinforcing steel material, and a plurality of the reinforcing steel materials are arranged in parallel in parallel with each side of the column. Shear reinforcement structure of flat slab.
向かって平行状にそれぞれ配置すると共に、柱の各辺の
近傍では密にその外側では疎となるように、上記補強鋼
材の配置間隔を漸次拡げたことを特徴とする請求項1な
いし3のいずれか1項に記載のフラットスラブの剪断補
強構造。4. The reinforcing steel materials are arranged in parallel from each side of the column toward the outside, and are densely close to each side of the column and sparse on the outside. 4. The shear reinforcing structure for a flat slab according to any one of claims 1 to 3, characterized in that the arrangement interval is gradually increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8546188U JPH0732689Y2 (en) | 1988-06-28 | 1988-06-28 | Shear reinforcement structure of flat slab |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8546188U JPH0732689Y2 (en) | 1988-06-28 | 1988-06-28 | Shear reinforcement structure of flat slab |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH029618U JPH029618U (en) | 1990-01-22 |
JPH0732689Y2 true JPH0732689Y2 (en) | 1995-07-31 |
Family
ID=31310130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8546188U Expired - Lifetime JPH0732689Y2 (en) | 1988-06-28 | 1988-06-28 | Shear reinforcement structure of flat slab |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0732689Y2 (en) |
-
1988
- 1988-06-28 JP JP8546188U patent/JPH0732689Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH029618U (en) | 1990-01-22 |
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