JP3556506B2 - Reinforcing metal fittings for reinforced concrete perforated beams - Google Patents
Reinforcing metal fittings for reinforced concrete perforated beams Download PDFInfo
- Publication number
- JP3556506B2 JP3556506B2 JP04419699A JP4419699A JP3556506B2 JP 3556506 B2 JP3556506 B2 JP 3556506B2 JP 04419699 A JP04419699 A JP 04419699A JP 4419699 A JP4419699 A JP 4419699A JP 3556506 B2 JP3556506 B2 JP 3556506B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforced concrete
- reinforcing metal
- reinforcing
- annular body
- perforated
- 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
Links
Images
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は鉄筋コンクリート有孔梁の補強金具に関する。
【0002】
【従来の技術】
梁の中に抜き孔を有する鉄筋コンクリート有孔梁の建設において、開孔部周縁の補強を行なうために、一般に補強筋が用いられている。
【0003】
この補強筋として、図7に示す如く、同一平面上の少なくとも内外2重の無端状の金属製環状体aとこれらの環状体aを互いに連結する複数の連結杆bとからなる鉄筋コンクリート有孔梁の補強金具が知られている。
【0004】
尚、cは前記鉄筋コンクリート有孔梁の開孔径部を示す。
【0005】
【発明が解決しようとする課題】
この従来の補強金具によれば、内外の環状体のそれぞれについて無端状のリングに形成しなければならないので、製作上手間がかかり補強金具が高コストとなる問題点があった。
【0006】
本発明はこれらの問題点を解消し、より少ない部品点数で製作を容易にした補強金具を提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明は上記の目的を達成すべく、複数の環状体を共通1本の棒体により形成してこれら環状体をその内外の移行部で交差し、最も外側の環状体に相応する個所の前記棒体の両端末部を内方に折り曲げて最も外側の環状体の次の内側の環状体に溶着させたことを特徴とする。
【0008】
【発明の実施の形態】
本発明の鉄筋コンクリート有孔梁の補強金具の第1の実施の形態を図1により説明する。
【0009】
補強金具1は、1本の連続する鉄筋コンクリート用棒鋼製の棒体2を略四角形状に折り曲げて形成した内側の第1環状体3と外側の第2環状体4と、同じく鉄筋コンクリート用棒鋼製の2本の連結杆5とからなる。
【0010】
即ち本補強金具1は、前記内側の第1環状体3から前記外側の第2環状体4への移行部において互に交差し、この交差個所6で互にプロジェクション溶接により溶着し、前記外側の第2環状体に相応する個所の前記棒体2の両端末部2bを略U字状に内方に折り曲げて前記内側の第1環状体3にプロジェクション溶接により固定している。
【0011】
前記2本の連結杆5は、前記環状体3、4の中心に対して90°の角度のハの字状をなして、前記交差個所6とは該中心に対して反対側のこれら環状体3、4上に、該中心の回りに開孔径部7を生ずるだけの空間を存するように配置され、更にこれら連結杆5は第1環状体3と第2環状体4とを連結するように、これら第1、第2環状体3、4との重なり部5aにおいてプロジェクション溶接により溶着している。
【0012】
次に、第1の実施の形態の補強金具1を用いた施工法について、図2により説明する。
【0013】
孔を設置する梁の該孔位置の前後に各1組の補強金具1を配置し、該梁の骨組を形成するカゴ組等の梁鉄筋Aにこれら補強金具1を針金等で結束すると共に、これら補強金具1内に開孔径部7に相当する外径のパイプBを挿通して保持させる。そしてコンクリート型枠C内にコンクリートDを打設すれば、強固なコンクリート有孔梁が得られる。
【0014】
第1環状体3及び第2環状体4は略四角形であるので、折り曲げ個所が少なくて製作容易であり、しかもこれら環状体3、4は梁の孔の周辺に生ずる斜め方向に生ずる亀裂に対して直交して配筋されているので、亀裂に対し十分耐えられる。又、本補強金具1はプロジェクション溶接により頑丈な一体構造により、軽量で低コストとすることができる。
【0015】
尚、本実施の形態の補強金具1は、図3の如き3重又は4重以上の環状体からなるものとしてもよい。
【0016】
図4及び図5は本発明の第2の実施の形態を示し、この実施の形態では前記第1の実施の形態の環状体が略四角形に形成したのを環状体を略八角形に形成しており、図4では環状体を2重にした補強金具1a´の場合を又、図5は環状体を3重にした補強金具1a´´の場合を示し、更に図6は環状体を4重にした補強金具1a´´´の場合を示し、必要に応じて環状体を5重以上にしてもよい。
【0017】
【発明の効果】
このように本発明によれば、1本の棒鋼を折り曲げて形成した内外複数の環状体により補強金具を形成したので、素材の部品点数が極めて少なくなると共に加工が簡単であり、しかも充分な強度が得られる効果を有する。
【図面の簡単な説明】
【図1】本発明の鉄筋コンクリート有孔梁の補強金具の第1の実施の形態の正面図である。
【図2】図1に示す補強金具を用いた有孔梁の施工法を示す断面図である。
【図3】同上第1の実施の形態における他の例の正面図である。
【図4】同上補強金具の第2の実施の形態の正面図である。
【図5】同上第2の実施の形態における他の例の正面図である。
【図6】同上第2の実施の形態における更に他の例の正面図である。
【図7】従来の鉄筋コンクリート有孔梁の補強金具の正面図である。
【符号の説明】
1、1a、1a´、1a´´、1a´´´ 補強金具
2 棒体
2b 端末部
3、4、3´、4´ 環状体
5 連結杆
6 交差個所[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reinforcing bracket for a reinforced concrete perforated beam.
[0002]
[Prior art]
In the construction of a reinforced concrete perforated beam having a hole in the beam, a reinforcing bar is generally used to reinforce the periphery of the opening.
[0003]
As shown in FIG. 7, this reinforcing bar is a perforated reinforced concrete beam including at least a double inner and outer endless metallic annular body a on the same plane and a plurality of connecting rods b connecting the annular bodies a to each other. Are known.
[0004]
In addition, c shows the opening diameter part of the said reinforced concrete perforated beam.
[0005]
[Problems to be solved by the invention]
According to this conventional reinforcing bracket, since the inner and outer annular bodies must be formed into endless rings, there is a problem in that it takes time and effort to manufacture the reinforcing bracket and the cost of the reinforcing bracket increases.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to provide a reinforcing bracket which can be easily manufactured with a smaller number of parts.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a method in which a plurality of annular bodies are formed by a common rod, and these annular bodies intersect at a transition portion between the inside and the outside thereof, and a portion corresponding to the outermost annular body is formed. Both ends of the rod are bent inward and welded to the inner ring next to the outermost ring.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of a reinforcing metal fitting for a reinforced concrete perforated beam according to the present invention will be described with reference to FIG.
[0009]
The reinforcing
[0010]
That is, the reinforcing
[0011]
The two connecting
[0012]
Next, a construction method using the reinforcing
[0013]
A pair of reinforcing
[0014]
Since the first
[0015]
Note that the reinforcing fitting 1 of the present embodiment may be formed of a triple or quadruple or more annular body as shown in FIG.
[0016]
FIGS. 4 and 5 show a second embodiment of the present invention. In this embodiment, the annular body of the first embodiment is formed in a substantially square shape, whereas the annular body is formed in a substantially octagonal shape. FIG. 4 shows the case of a reinforcing bracket 1a 'having a double annular body, FIG. 5 shows the case of a reinforcing bracket 1a''having a triple annular body, and FIG. The case of the reinforced reinforcement fitting 1a '''is shown, and if necessary, the annular body may have five or more layers.
[0017]
【The invention's effect】
As described above, according to the present invention, since the reinforcing bracket is formed by a plurality of inner and outer annular bodies formed by bending a single steel bar, the number of parts of the material is extremely reduced, processing is simple, and sufficient strength is obtained. Is obtained.
[Brief description of the drawings]
FIG. 1 is a front view of a first embodiment of a reinforcing metal fitting for a reinforced concrete perforated beam according to the present invention.
FIG. 2 is a cross-sectional view showing a method of constructing a perforated beam using the reinforcing metal fitting shown in FIG.
FIG. 3 is a front view of another example according to the first embodiment.
FIG. 4 is a front view of a second embodiment of the same reinforcing metal fitting.
FIG. 5 is a front view of another example according to the second embodiment.
FIG. 6 is a front view of still another example of the second embodiment.
FIG. 7 is a front view of a conventional reinforcing bracket for a reinforced concrete perforated beam.
[Explanation of symbols]
1, 1a, 1a ', 1a'',1a'''
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04419699A JP3556506B2 (en) | 1998-08-28 | 1999-02-23 | Reinforcing metal fittings for reinforced concrete perforated beams |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-259276 | 1998-08-28 | ||
JP25927698 | 1998-08-28 | ||
JP04419699A JP3556506B2 (en) | 1998-08-28 | 1999-02-23 | Reinforcing metal fittings for reinforced concrete perforated beams |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2000136597A JP2000136597A (en) | 2000-05-16 |
JP3556506B2 true JP3556506B2 (en) | 2004-08-18 |
JP2000136597A5 JP2000136597A5 (en) | 2005-02-17 |
Family
ID=26384045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP04419699A Expired - Lifetime JP3556506B2 (en) | 1998-08-28 | 1999-02-23 | Reinforcing metal fittings for reinforced concrete perforated beams |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3556506B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010242482A (en) * | 2009-03-16 | 2010-10-28 | Tm Giken Co Ltd | Reinforcing fitting for reinforced-concrete perforated beam |
JP6771882B2 (en) * | 2015-11-30 | 2020-10-21 | 矢作建設工業株式会社 | Beam reinforcement and beam reinforcement structure |
KR102371392B1 (en) * | 2020-04-29 | 2022-03-07 | 주식회사아이벤 | Impact absorption mat |
-
1999
- 1999-02-23 JP JP04419699A patent/JP3556506B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2000136597A (en) | 2000-05-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2715008B1 (en) | Nodes in a truss work or a truss work like structure | |
JPH11152745A (en) | Structure of pile to be formed in site | |
JP4413167B2 (en) | Reinforced structure of steel reinforced concrete structure and its construction method | |
JP3556506B2 (en) | Reinforcing metal fittings for reinforced concrete perforated beams | |
CN104040086A (en) | Steel reinforcing structure for concrete | |
JP2005180175A (en) | Reinforcing fitting for reinforced concrete perforated beam | |
JP2000136597A5 (en) | ||
JP3519261B2 (en) | Reinforcing metal fittings for reinforced concrete perforated beams | |
EP0517107A1 (en) | Ferroconcrete constructing frame | |
KR101846245B1 (en) | Helical lattice | |
JP2799794B2 (en) | Reinforcement method for RC or SRC beam opening | |
JP4159510B2 (en) | Reinforced brackets for reinforced concrete perforated beams | |
JP3419506B2 (en) | Steel cage | |
JPH09177247A (en) | Method for forming reinforcing bar cage in unit system for cast-in-site pile | |
JP7483569B2 (en) | Outer shell PCa member piece of column and outer shell PCa member of column | |
JPH10227101A (en) | Reinforcing fitting for reinforced concrete beam having hole | |
CN218757998U (en) | Be applicable to circular steel core concrete column-shaped steel post conversion node structure | |
JPH01207551A (en) | Reinforcing metal piece for porous beam in ferroconcrete | |
JP7271454B2 (en) | hybrid beam structure | |
JP2581302Y2 (en) | Reinforcement hardware for RC or SRC beam openings | |
JP7271453B2 (en) | hybrid beam structure | |
JPH05125794A (en) | Infilling type steel pipe concrete column | |
JP2003082812A (en) | Split member for reinforcing steel material and method for executing reinforcing steel material | |
JP3105575U (en) | Reinforcing metal fittings for reinforced concrete perforated beams | |
JPH07150684A (en) | Stiffener for opening |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040309 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040309 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20040309 |
|
TRDD | Decision of grant or rejection written | ||
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20040416 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040421 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040512 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090521 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100521 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110521 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110521 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120521 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120521 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130521 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130521 Year of fee payment: 9 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |