JP4159510B2 - Reinforced brackets for reinforced concrete perforated beams - Google Patents

Reinforced brackets for reinforced concrete perforated beams Download PDF

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JP4159510B2
JP4159510B2 JP2004158637A JP2004158637A JP4159510B2 JP 4159510 B2 JP4159510 B2 JP 4159510B2 JP 2004158637 A JP2004158637 A JP 2004158637A JP 2004158637 A JP2004158637 A JP 2004158637A JP 4159510 B2 JP4159510 B2 JP 4159510B2
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rod
reinforced concrete
frame
annular
reinforcing
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JP2005336894A (en
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芳彦 橋本
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有限会社日本スリーブ
株式会社シバタ鐵工業
株式会社アルマット
芳彦 橋本
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本願発明は、鉄筋コンクリート梁の内部に配置する補強金具の分野に属し、特に、管材を挿通させる貫通孔を形成した有孔梁において、その貫通孔廻りに配置する補強金具に関する。   The present invention belongs to the field of reinforcing metal fittings arranged inside a reinforced concrete beam, and particularly relates to a reinforcing metal fitting arranged around the through hole in a perforated beam in which a through hole through which a pipe material is inserted is formed.
鉄筋コンクリート梁には、その内部を貫通させて水道管又は電線管等の配管のための貫通孔を形成した鉄筋コンクリート有孔梁がある。かかる有孔梁は、荷重時に貫通孔の廻りへの応力集中などにより強度的に脆弱となるため、その補強手段として補強金具を配設している。   A reinforced concrete beam includes a reinforced concrete perforated beam that has a through hole for a pipe such as a water pipe or a conduit pipe penetrating the inside thereof. Since such a perforated beam becomes weak in strength due to stress concentration around the through-hole when loaded, a reinforcing metal fitting is provided as a reinforcing means.
かかる補強金具は、従来から区々形状のものが多数存在している。例えば、特許文献1に示す補強金具S1は、図5(A)に示すように、内外二重のかつ無端状に形成した円形の環状体r1に、略コ字状の補強体j1を略45度の間隔で4箇所に配置し、各環状体r1と溶接により連結固着したものである。   Many of such reinforcing metal fittings have been formed in a conventional manner. For example, as shown in FIG. 5 (A), the reinforcing metal fitting S1 shown in Patent Document 1 has a substantially U-shaped reinforcing body j1 and a substantially circular U-shaped circular body r1 that are formed in an endless shape. It is arranged at four positions at intervals of degrees, and is connected and fixed to each annular body r1 by welding.
また、特許文献2に示す補強金具S2は、一つの棒体を交差させながら二重以上の略八角形の環状体r2を形成しつつ、両端末部を溶接して無端状の接合部uを形成して構成している。そして、この環状体r2に2つの直状棒体の連結杆j2を環状体r2の放射方向に配置し、各環状体r2を溶接により連結固着して一体としたものである。   Further, the reinforcing metal fitting S2 shown in Patent Document 2 forms an endless joint u by welding both end portions while forming a double or more substantially octagonal annular body r2 while intersecting one rod body. Formed and configured. Then, two connecting rods j2 of straight rod bodies are arranged on the annular body r2 in the radial direction of the annular body r2, and the annular bodies r2 are connected and fixed together by welding.
他にも特許文献3には、環状体を三重の略螺旋状に形成し、両端末を無端状に溶接すると共に連結杆を配置した特許文献2と同様の構成の補強金具(図示省略)が開示されている。
特開平10−227101号公報(第2−3頁、第1図) 特開2000−136597号公報(第2−3頁、第1図) 特開2003−020755号公報(第3−4頁、第1図)
In addition, Patent Document 3 discloses a reinforcing metal fitting (not shown) having the same configuration as Patent Document 2 in which an annular body is formed in a triple substantially spiral shape, both ends are welded endlessly, and a connecting rod is arranged. It is disclosed.
Japanese Patent Laid-Open No. 10-227101 (page 2-3, FIG. 1) Japanese Unexamined Patent Publication No. 2000-136597 (page 2-3, FIG. 1) JP 2003-020755 A (page 3-4, FIG. 1)
しかしながら、上記特許文献に開示された補強金具の何れもは、接合部等を無端状に形成しているため、専用のアプセット突合せ溶接機による溶接作業や溶接後の品質管理等により高コストとなる問題点があった。   However, since all of the reinforcing metal fittings disclosed in the above-mentioned patent documents have endlessly formed joints and the like, the cost is increased due to welding work by a dedicated upset butt welder, quality control after welding, and the like. There was a problem.
また、有孔梁の形成時に配置する補強金具の断面径(棒材の線径)は、貫通孔の開口径(例えば、φ100mm)にもよるが、通常、10mm以上としている。このため補強金具は、重量が嵩むことはもちろんのこと、その曲げや溶接による製造、検査、保管、又は梁製造時における配置作業の負担、等を考慮すると、補強強度を維持しつつ、より断面径を細くして軽量化した構成とされることが望まれていた。   Moreover, although the cross-sectional diameter (wire diameter of a bar) of the reinforcing metal member to be arranged when forming the perforated beam depends on the opening diameter (for example, φ100 mm) of the through hole, it is usually set to 10 mm or more. For this reason, in addition to increasing the weight of the reinforcing bracket, considering the burden of manufacturing work, inspection, storage, or placement work at the time of beam manufacture, such as bending and welding, the reinforcing cross-section is maintained while maintaining the reinforcing strength. It has been desired to reduce the diameter and reduce the weight.
そこで、本願発明は、かかる課題を鑑みて為されたものであり、製造コストを抑制しつつ、断面径の細い棒材で構成した場合でも十分なせん断強度を確保できる構成を有した鉄筋コンクリート有孔梁の補強金具を提供する。   Accordingly, the present invention has been made in view of the above problems, and has a structure in which a sufficient shear strength can be ensured even when it is composed of a bar having a small cross-sectional diameter while suppressing the manufacturing cost. Provide beam reinforcement brackets.
上記の課題を解決するために、本願発明の鉄筋コンクリート有孔梁の補強金具は、以下のように構成している。   In order to solve the above-mentioned problems, a reinforcing metal fitting for a reinforced concrete perforated beam according to the present invention is configured as follows.
すなわち、1本の棒材(主に、鋼棒材)を略平面的にかつ螺旋状に周回させて内外の環状枠(1)を一連にかつ略菱形状に形成し、該鋼棒材の両端部(21)を最内側の環状枠(11)より内側へ屈曲させて構成したスリーブ受け部(2)を配設すると共に、棒材から成る連結杆(3)を内外の環状枠(1)に架け渡して固着している。   That is, a single bar (mainly a steel bar) is made to circulate in a substantially planar and spiral manner to form an inner and outer annular frame (1) in a series and in a substantially rhombus shape. A sleeve receiving portion (2) configured by bending both end portions (21) inward from the innermost annular frame (11) is disposed, and a connecting rod (3) made of a bar is connected to the inner and outer annular frames (1). ) And is stuck.
上記のスリーブ受け部(2)は、最内側の角部(13)において内側へ延出させた最内側の環状枠(11)の端部(21)と、同角部(13)において、最外側の環状枠(12)から同様に最内側の環状枠(11)の内側へ屈曲させたもう一方の端部(21)から構成し、正面視において鋼棒材を交差させた略V字状に上方開脚させている。このように構成したスリーブ受け部(2)の両端部(21)は、補強金具の略中心位置に載置するスリーブ(4)の側面に当接し、これを保持する。   The sleeve receiving portion (2) includes an end portion (21) of the innermost annular frame (11) extended inward at the innermost corner portion (13) and an innermost corner portion (13). A substantially V-shape formed by the other end (21) bent from the outer annular frame (12) to the inner side of the innermost annular frame (11) and intersecting steel bars in a front view. The leg is opened upward. Both end portions (21) of the sleeve receiving portion (2) configured as described above are in contact with and hold the side surface of the sleeve (4) placed at a substantially central position of the reinforcing metal fitting.
内外の環状枠(1)に架け渡した連結杆(3)は、その両端部(31)が最外側の環状枠(12)から外側へ延出するようにしている。別言すると、連結杆(3)は内外の環状枠(1)の少なくとも2辺以上に架け渡して配置しているものである。連結杆(3)は、環状枠(1)の中心に対して略対称な位置、例えば、スリーブ受け部(2)の両側に位置する角部(13)の近傍に配置するようにしても良い。この連結杆(3)の取付けにより、環状枠(1)は所定枠体に維持される。   The connecting rod (3) spanned between the inner and outer annular frames (1) has its both end portions (31) extending outward from the outermost annular frame (12). In other words, the connecting rod (3) is arranged across at least two sides of the inner and outer annular frames (1). The connecting rod (3) may be disposed at a position that is substantially symmetrical with respect to the center of the annular frame (1), for example, in the vicinity of the corner portions (13) located on both sides of the sleeve receiving portion (2). . By attaching the connecting rod (3), the annular frame (1) is maintained in a predetermined frame.
連結杆(3)は、一般に鋼棒材であり、直線状、湾曲状、屈曲状、のいずれか、又はこれらを組み合わせた形状を成す。さらには、各環状枠(1)と連結杆(3)とをそれぞれ異なる断面径から成る鋼棒材で形成しても良い。例えば、軽量化を図る目的で連結杆の断面径を小さくすることが挙げられるが、有孔梁の仕様により適宜選択すれば良い。   The connecting rod (3) is generally a steel bar, and has a linear shape, a curved shape, a bent shape, or a combination thereof. Furthermore, you may form each annular frame (1) and connecting rod (3) with the steel bar material which each has a different cross-sectional diameter. For example, it is possible to reduce the cross-sectional diameter of the connecting rod for the purpose of reducing the weight, but it may be appropriately selected depending on the specifications of the perforated beam.
なお、特許請求の範囲の書類及び上記の課題を解決するための手段の欄で記載した括弧付き符号は、発明の構成の理解を容易にするため参考として図面符号を付記したもので、この図面上の形態に限定するものでないことはもちろんである。   Note that the reference numerals in parentheses described in the claims and the means for solving the above problems are added with reference numerals for reference to facilitate understanding of the configuration of the invention. Of course, it is not limited to the above form.
本願発明の補強金具は、上述のように構成をしているため、以下の効果を発揮する。
本願補強金具は、一本の鋼棒材から螺旋状(言うなれば、「一筆書き状」)に内外多重に成る環状枠により構成している。このため、大小2つの環状体を別個に形成する従来の補強金具と比較すると、部品点数が減ることはもちろん溶接箇所が減少する。この溶接箇所の減少により、補強金具における応力集中箇所が減少し、その結果、有孔梁に作用する断面力やせん断力に対抗する強度が向上する。
Since the reinforcing metal fitting of the present invention is configured as described above, the following effects are exhibited.
The reinforcing metal fitting of the present application is composed of an annular frame that is spirally formed from a single steel bar (in other words, “one-stroke writing shape”). For this reason, compared with the conventional reinforcement metal fitting which forms two large and small annular bodies separately, not only the number of parts but of course the number of welded parts is reduced. Due to the reduction of the welded portions, the stress concentration points in the reinforcing metal fitting are reduced, and as a result, the strength against the cross-sectional force and shearing force acting on the perforated beam is improved.
また、スリーブ受け部を環状枠の両端部を屈曲させて形成しているため、従来の補強金具のように所定位置に連結杆を配置し、これをスリーブ受け部として構成する必要はない。このため、本願補強金具においては、連結杆をスリーブ受け部とは無関係に、つまり、補強金具の形状維持(剛性確保)の観点から適宜に配置することが可能となる。   Further, since the sleeve receiving portion is formed by bending both end portions of the annular frame, it is not necessary to arrange the connecting rod at a predetermined position as in the case of the conventional reinforcing metal fitting and to configure this as the sleeve receiving portion. For this reason, in the present reinforcing metal fitting, the connecting rod can be appropriately arranged irrespective of the sleeve receiving portion, that is, from the viewpoint of maintaining the shape of the reinforcing metal fitting (securing rigidity).
さらに、各環状枠の形状を略菱形とすることより、これに貫通配置するスリーブとは略外接する位置関係となり効率的で無駄の無い配置ができる上、この環状枠の各枠辺の傾斜が貫通孔に生じる斜めせん断力に対して略直交状態をなし、貫通孔の周辺の補強効果を増大させている。   Furthermore, by making the shape of each annular frame into a substantially rhombus shape, it is in a positional relationship that is substantially circumscribed with the sleeve that penetrates the annular frame, and an efficient and wasteful arrangement is possible, and the inclination of each frame side of the annular frame is A substantially orthogonal state is formed with respect to the oblique shear force generated in the through hole, and the reinforcing effect around the through hole is increased.
以上より、本願補強金具は、荷重等により貫通孔周辺に生じる断面力や斜めせん断力等に対して高い補強効果を発揮し、鋼棒材の断面径を従来品より縮径して構成することも可能としている。   As described above, the reinforcing bracket of the present application exhibits a high reinforcing effect against the cross-sectional force and oblique shear force generated around the through hole due to a load or the like, and is configured by reducing the cross-sectional diameter of the steel bar material from the conventional product. It is also possible.
また、本願補強金具は、端部の突合せ溶接用のアプセット突合せ溶接機を備える必要性もなく、上記の溶接箇所の減少、さらには鋼棒材の断面径の縮径が図れることもあり、鋼棒材の溶接、切断、曲げ等の製造及び品質管理等の生産コスト抑制を可能とする顕著な効果を奏する。   Further, the present reinforcing metal fitting does not need to be provided with an upset butt welding machine for butt welding of the end portion, and may reduce the above-mentioned welding location, and further reduce the cross-sectional diameter of the steel bar. There is a remarkable effect of enabling production cost control such as manufacturing, quality control and the like of welding, cutting and bending of the bar.
以下に、本願発明にかかる鉄筋コンクリート有孔梁(以下、「有孔梁」と略称する。)の補強金具Aの最良の実施形態について、図面に基づき詳細に説明する。   Hereinafter, the best embodiment of the reinforcing metal fitting A of a reinforced concrete perforated beam (hereinafter abbreviated as “perforated beam”) according to the present invention will be described in detail with reference to the drawings.
図1は本実施例の補強金具の外観斜視図であり、図2は本実施例の補強金具の平面図であり、図3は本実施例の補強金具において連結杆の変更例を示す平面図(A)、(B)である。   FIG. 1 is an external perspective view of the reinforcing bracket of the present embodiment, FIG. 2 is a plan view of the reinforcing bracket of the present embodiment, and FIG. 3 is a plan view showing a modification of the connecting rod in the reinforcing bracket of the present embodiment. (A) and (B).
本実施例の補強金具Aは、一本の鋼棒材から内外多重に複数個の環状枠1を略平面状に形成し、これに連結杆3を配置して成るものである。   The reinforcing metal fitting A of the present embodiment is formed by forming a plurality of annular frames 1 in a substantially planar shape from one steel bar material inside and outside, and arranging a connecting rod 3 thereon.
環状枠1は、図1に示すように、1本の鋼棒材を略平面状にかつ螺旋状に周回させて内外二重の内側枠11と外側枠12とを一連に形成している。言わば、環状枠1を一筆書き状に構成している。また、環状枠1は、図2に示すように、略菱形を成すと共に菱形の2本の対角線長さを略同じとなるように形成している。   As shown in FIG. 1, the annular frame 1 has a single inner surface 11 and an outer frame 12 formed in series by rotating one steel bar in a substantially planar shape and spirally. In other words, the annular frame 1 is configured in a single stroke. In addition, as shown in FIG. 2, the annular frame 1 forms a substantially rhombus and is formed so that the two diagonal lengths of the rhombus are substantially the same.
内側枠11の端部21の近傍が位置する角部13(図面上中央下側)には、スリーブ受け部2を形成している。このスリーブ受け部2は、内側枠11の端部21、及び外側枠12の端部21をそれぞれ内側枠11より内側の枠中心方向へ屈曲させて所定長さ延出させて形成している。この外側枠12の端部21は、屈曲により内側枠11の枠辺と交差すると共に溶接して一体化している。これらの両端部21、21の屈曲により、スリーブ受け部2は、当該角部13において内側枠11の内部に向かって広がった略V字状を呈し、スリーブ4を保持する。そして、この両端部21には、必要により、樹脂製のエンドキャップ22を取り付けている。   The sleeve receiving portion 2 is formed at the corner portion 13 (lower side in the center in the drawing) where the vicinity of the end portion 21 of the inner frame 11 is located. The sleeve receiving portion 2 is formed by bending the end portion 21 of the inner frame 11 and the end portion 21 of the outer frame 12 toward the inner frame center direction from the inner frame 11 and extending a predetermined length. The end 21 of the outer frame 12 intersects the frame side of the inner frame 11 by bending and is integrated by welding. Due to the bending of both end portions 21, 21, the sleeve receiving portion 2 has a substantially V-shape spreading toward the inside of the inner frame 11 at the corner portion 13, and holds the sleeve 4. Then, resin end caps 22 are attached to both end portions 21 as necessary.
スリーブ受け部2を形成した角部13と隣り合う2つの角部13の近傍には、連結杆3を対向させてそれぞれ配置している。この連結杆3は環状枠1と同じ断面径の鋼棒材から形成した略直線状をなし、上記角部13を結ぶ対角線と直交しかつ各環状枠1の合計4つの枠辺に架け渡すようにして配置固定している。これらの連結杆3の両端部31は、外側枠12から若干外部側に延出している。このように形成及び配置した連結杆3は、略菱形の環状枠1の内側枠11及び外側枠12の保形維持に作用している。   In the vicinity of the two corner portions 13 adjacent to the corner portion 13 forming the sleeve receiving portion 2, the connecting rods 3 are arranged to face each other. The connecting rod 3 has a substantially straight line shape formed from a steel bar having the same cross-sectional diameter as the annular frame 1, is orthogonal to the diagonal line connecting the corners 13, and spans a total of four frame sides of each annular frame 1. The placement is fixed. Both end portions 31 of these connecting rods 3 slightly extend outward from the outer frame 12. The connecting rod 3 formed and arranged in this manner acts to maintain the shape of the inner frame 11 and the outer frame 12 of the substantially rhombic annular frame 1.
なお、スリーブ受け部2と連結杆3の他の鋼棒材との交差部は、スポット溶接によりそれぞれ固着している。   In addition, the crossing part of the sleeve receiving part 2 and the other steel bar of the connecting rod 3 is fixed by spot welding.
本実施例の補強金具Aは、環状枠1、連結杆3とも断面径6mmの鋼棒材を用いているが、連結杆3は、補強金具の仕様によっては環状枠1と異なる断面径の鋼棒材から形成しても良い。   The reinforcing bracket A of the present embodiment uses a steel bar having a cross-sectional diameter of 6 mm for both the annular frame 1 and the connecting rod 3, but the connecting rod 3 is a steel having a cross-sectional diameter different from that of the annular frame 1 depending on the specifications of the reinforcing bracket. You may form from a bar.
連結杆3は上述したように直線状に形成しているが、以下のようにしても良い。例えば、図3の(A)、(B)に示すように、湾曲状、屈曲状の連結杆3a、3bに形成し、又はこれら組み合わせにしても良い。これらの連結杆3a、3bにおいても、直線状の連結杆3の場合と同様に内側枠11及び外側枠12の合計4つの枠辺に架け渡すように配置し、各環状枠1の保形維持を行うことが好ましい。
[有孔梁形成の施工例]
The connecting rod 3 is formed in a straight line as described above, but may be as follows. For example, as shown in FIGS. 3A and 3B, the connecting rods 3a and 3b may be formed in a curved shape or a bent shape, or a combination thereof. These connecting rods 3a and 3b are also arranged so as to span a total of four frame sides of the inner frame 11 and the outer frame 12 in the same manner as in the case of the linear connecting rod 3, so that the shape retention of each annular frame 1 is maintained. It is preferable to carry out.
[Example of construction for forming perforated beams]
次に、本実施例の補強金具Aを用いて有孔梁の形成の施工例について説明する。図4は本実施例の補強金具を用いての有孔梁の施工状態を示す斜視図である。   Next, a construction example for forming a perforated beam using the reinforcing metal fitting A of the present embodiment will be described. FIG. 4 is a perspective view showing a construction state of a perforated beam using the reinforcing metal fitting of the present embodiment.
まず、鋼棒材から有孔梁5の骨組6を構成する。この骨組6は、従来と同様に、有孔梁5のスパン方向に配設した複数の梁主筋61に適宜の間隔で直交するように補強の肋筋62を配設して構成している。   First, the frame 6 of the perforated beam 5 is formed from a steel bar. In the same manner as in the prior art, the frame 6 is configured by arranging reinforcing reinforcing bars 62 so as to be orthogonal to a plurality of beam main bars 61 arranged in the span direction of the perforated beam 5 at an appropriate interval.
次に、骨組6の貫通孔51の形成位置に補強金具Aを梁主筋61及び肋筋62に結束線で固定して配置する。補強金具Aの配置は、図示するように、環状枠1の枠面を貫通孔51の断面に沿って、かつ貫通孔51の軸方向の1又は複数箇所(通常は、開口部付近)に配設している。この時、補強金具Aのスリーブ受け部2は、貫通孔51の下側となるようにしている。   Next, the reinforcing bracket A is fixed to the beam main bar 61 and the barb 62 with a tie wire at the position where the through hole 51 of the frame 6 is formed. As shown in the figure, the reinforcing metal fitting A is arranged such that the frame surface of the annular frame 1 is arranged along the cross section of the through hole 51 and at one or a plurality of locations (usually near the opening) of the through hole 51 in the axial direction. Has been established. At this time, the sleeve receiving portion 2 of the reinforcing metal fitting A is arranged below the through hole 51.
上述した補強金具Aの骨組6への配置により、環状枠1の各枠辺は有孔梁5のスパン方向(梁延長方向)の水平線に対して略45度の傾斜角を成す。これにより、負荷重による有孔梁5の貫通孔51付近のコンクリート材に生じる斜めせん断力に対して、各枠辺の軸力として対抗させ、その結果、貫通孔51の周縁付近からの亀裂の発生を防止することができる。   By arranging the reinforcing metal fitting A on the frame 6 as described above, each frame side of the annular frame 1 forms an inclination angle of about 45 degrees with respect to a horizontal line in the span direction (beam extension direction) of the perforated beam 5. As a result, the diagonal shear force generated in the concrete material near the through hole 51 of the perforated beam 5 due to the load weight is countered as the axial force of each frame side. As a result, cracks from the periphery of the through hole 51 are prevented. Occurrence can be prevented.
補強金具Aの配置後に、V字状に上方開脚したスリーブ受け部2にスリーブ4を載置して、結束線等にて固定する。   After the reinforcing metal fitting A is arranged, the sleeve 4 is placed on the sleeve receiving portion 2 that is opened upward in a V shape, and is fixed by a binding wire or the like.
そして、型枠7の内部に有孔梁5の骨組6全体を配置し、コンクリートを打設して硬化させて、貫通孔51への応力集中に備えて補強した有孔梁5を得る。   Then, the entire frame 6 of the perforated beam 5 is placed inside the mold 7, and concrete is cast and hardened to obtain a perforated beam 5 reinforced in preparation for stress concentration in the through hole 51.
本実施例の補強金具の外観斜視図である。It is an external appearance perspective view of the reinforcement metal fitting of a present Example. 本実施例の補強金具の平面図である。It is a top view of the reinforcement metal fitting of a present Example. 本実施例の補強金具において連結杆の変更例を示す平面図(A)、(B)である。It is the top view (A) and (B) which show the example of a change of a connecting rod in the reinforcement metal fitting of a present Example. 本実施例の補強金具を用いての有孔梁の施工状態を示す斜視図である。It is a perspective view which shows the construction state of a perforated beam using the reinforcement metal fitting of a present Example. 従来例の補強金具を示す平面図(A)、(B)である。It is a top view (A) and (B) which show the reinforcing metal fitting of a conventional example.
符号の説明Explanation of symbols
A 補強金具
1 環状枠
11 内側枠
12 外側枠
13 角部
2 スリーブ受け部
21 端部
22 エンドキャップ
3 連結杆
31 端部
3a 連結杆(湾曲状)
3b 連結杆(屈曲状)
4 スリーブ
5 有孔梁
51 貫通孔
6 骨組
61 梁主筋
62 肋筋
7 型枠
S1 補強金具(従来例の)
r1 環状体
j1 補強体
S2 補強金具(従来例の)
r2 環状体
j2 連結杆
u 接合部

A Reinforcing metal fitting 1 Annular frame 11 Inner frame 12 Outer frame 13 Corner portion 2 Sleeve receiving portion 21 End portion 22 End cap 3 Connecting rod 31 End portion
3a Connecting rod (curved shape)
3b Connecting rod (bent)
4 Sleeve 5 Perforated Beam 51 Through-hole 6 Frame 61 Beam Main Reinforcement 62 Reinforcing Bar 7 Formwork S1 Reinforcing Bracket (conventional example)
r1 annular body j1 reinforcing body S2 reinforcing metal fitting (conventional example)
r2 annular body j2 connecting rod u joint

Claims (7)

  1. 複数個の環状枠を、内外多重にかつ略平面的に配置して一体化させて成る鉄筋コンクリート有孔梁の補強金具において、
    1本の棒材を螺旋状に周回させて内外の環状枠(1)を一連に形成し、
    該棒材の両端部(21)を最内側の環状枠(11)より内側へ屈曲させてスリーブ受け部(2)を配設すると共に、
    棒材からなる連結杆(3)を、内外の環状枠(1)に架け渡し固定したことを特徴とする鉄筋コンクリート有孔梁の補強金具。
    In the reinforcing bracket of a reinforced concrete perforated beam in which a plurality of annular frames are arranged and integrated in a multi-planar manner and in a substantially planar manner,
    One rod is spirally wound to form a series of inner and outer annular frames (1),
    The both ends (21) of the bar are bent inward from the innermost annular frame (11) to dispose the sleeve receiving portion (2),
    A reinforcing bracket for a reinforced concrete perforated beam, characterized in that a connecting rod (3) made of bar material is bridged and fixed to an inner and outer annular frame (1).
  2. 内外の各環状枠(1)の形状を略菱形状に成形し、かつスリーブ受け部(2)を最内側の角部(13)において内側へ延出させて配置したことを特徴とする請求項1記載の鉄筋コンクリート有孔梁の補強金具。   The shape of each of the inner and outer annular frames (1) is formed in a substantially rhombus shape, and the sleeve receiving portion (2) is arranged to extend inward at the innermost corner (13). The reinforcing metal fitting for reinforced concrete perforated beams according to 1.
  3. 連結杆(3)の両端部(31)が、最外側の環状枠(12)から外側へ延出するようにして架け渡したことを特徴とする請求項1、又は2記載の鉄筋コンクリート有孔梁の補強金具。   The reinforced concrete perforated beam according to claim 1 or 2, wherein both ends (31) of the connecting rod (3) are extended so as to extend outward from the outermost annular frame (12). Reinforcing metal fittings.
  4. 複数個の連結杆(3)を、環状枠(1)の中心に対して略対称な位置に1対配置としたことを特徴とする請求項1、2、又は3記載の鉄筋コンクリート有孔梁の補強金具。 The reinforced concrete perforated beam according to claim 1, 2 or 3, wherein a plurality of connecting rods (3) are arranged in a pair at substantially symmetrical positions with respect to the center of the annular frame (1). Reinforcing metal fittings.
  5. 連結杆(3)を、スリーブ受け部(2)の両側に位置する角部(13)に配置したことを特徴とする請求項2、3、又は4記載の鉄筋コンクリート有孔梁の補強金具。

    The reinforcing bracket for a reinforced concrete perforated beam according to claim 2, 3 or 4, characterized in that the connecting rod (3) is arranged at corners (13) located on both sides of the sleeve receiving portion (2).

  6. 連結杆(3)を直線状、湾曲状、屈曲状、のいずれか又はこれらを組み合わせて形成したことを特徴とする請求項1、2、3、4、又は5記載の鉄筋コンクリート有孔梁の補強金具。   The reinforcement of the reinforced concrete perforated beam according to claim 1, wherein the connecting rod (3) is formed in any one of a straight line shape, a curved shape, a bent shape or a combination thereof. Hardware.
  7. 環状枠(1)と連結杆(3)とをそれぞれ異なる断面径からなる棒材で形成したことを特徴とする請求項1、2、3、4、5、又は6記載の鉄筋コンクリート有孔梁の補強金具。

    7. The reinforced concrete perforated beam according to claim 1, wherein the annular frame (1) and the connecting rod (3) are formed of rods having different cross-sectional diameters. Reinforcing metal fittings.

JP2004158637A 2004-05-28 2004-05-28 Reinforced brackets for reinforced concrete perforated beams Expired - Fee Related JP4159510B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397744A (en) * 2013-08-12 2013-11-20 新疆七星建设科技股份有限公司 Multiple-limb closed integral stirrup

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175021A (en) * 2007-01-22 2008-07-31 Kurimoto Ltd Through-hole reinforcing member of concrete beam
KR100996701B1 (en) 2009-12-28 2010-11-25 고려열연주식회사 Structural system for intensity reinforcement of concrete structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397744A (en) * 2013-08-12 2013-11-20 新疆七星建设科技股份有限公司 Multiple-limb closed integral stirrup

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