JPS58222248A - Iron wire joint method - Google Patents
Iron wire joint methodInfo
- Publication number
- JPS58222248A JPS58222248A JP10427782A JP10427782A JPS58222248A JP S58222248 A JPS58222248 A JP S58222248A JP 10427782 A JP10427782 A JP 10427782A JP 10427782 A JP10427782 A JP 10427782A JP S58222248 A JPS58222248 A JP S58222248A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- joint
- iron wire
- joint method
- wire joint
- 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
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、建物の基礎或いは鉄筋コンクリート構造物に
使用される鉄筋の継手工法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for joining reinforcing bars used in building foundations or reinforced concrete structures.
鉄筋の配筋工程においては、互いに連続する鉄筋を連結
することが必要であるが、このような配ね
筋継手は、一般に重な継手が用いられている。しかしな
がら、かかる重ね継手では、鉄筋の方向が複雑に入り込
んだ部分では、重ね部分が極端に増加し、打設コンクリ
ートの回りが悪くなったり、或いは基礎工事ではアンカ
ーポルトの設置に不都合を生ずる欠点がある。特に、第
１図の如く、ユニット鉄筋Ｑａ） Ｑｂ） Ｑｃ） Ｑ
ｄ）を用いたもノテは、各コーナ（２） （３）間の間
隔が短かいと、両コーナ（２） （３）よシ折れ曲った
鉄筋（４） （５）と、同じく両コーナ（２） （３）
間を結ぶ鉄筋（６）とが３重に重なり、しかも、このよ
うな３重の重なり部分が上下複数段に亘り、鉄筋の重な
り部分が益々増大することとなる。このような問題を解
決する方法として、重ね継手の変わりに突合せ継手を用
いることが考えられ、例えば、継手パイプにセメントペ
ーストを充填して接続する方法等が考えられているが、
かかる方法では、強度が極端に低下するという実用上の
問題がある。更に、これと異なる方法では、エポキシ樹
脂を充填する方法も考えられるが、かかるエポキシ樹脂
は温度変化の影響を受は易く、必ずしも強度的に充分で
ないのみならず、コスト高で、かつ、有害なため作業条
件が悪くなるという欠点がある。In the reinforcing bar arrangement process, it is necessary to connect continuous reinforcing bars to each other, and such bar arrangement joints generally use overlapping joints. However, such lap joints have the drawback that in areas where the reinforcing bars have complicated directions, the number of overlaps increases dramatically, resulting in poor circulation of the poured concrete, or inconvenience in the installation of anchor ports in foundation work. be. In particular, as shown in Figure 1, unit reinforcing bars Qa) Qb) Qc) Q
d) If the distance between each corner (2) (3) is short, both corners (2) (3) will have slightly bent reinforcing bars (4) (5), and (2) (3)
The reinforcing bars (6) connecting between the reinforcing bars overlap in three layers, and such triple overlapping portions extend over multiple stages above and below, and the overlapping portions of the reinforcing bars increase more and more. One way to solve this problem is to use butt joints instead of lap joints, for example, to fill the joint pipe with cement paste and connect it.
This method has a practical problem in that the strength is extremely reduced. Furthermore, a different method may be to fill with epoxy resin, but such epoxy resin is easily affected by temperature changes and not only does not have sufficient strength, but is also expensive and harmful. This has the disadvantage that working conditions become worse.
本発明は、上記従来の欠点に鑑みてなされたもので、鉄
筋の重なり部分のない突合せ継手を使用するとともに、
しかも、このように突合せ継手を用いた場合でも、従来
と比較して遥かに強度の高い継手工法を提供せんとする
もので、その構成は、互いに突合せ接続される鉄筋の両
端部に跨がって継手金具を被覆させ、かつ、この継手金
具の内部に膨張性充填剤を充填することを特徴とするも
のである。The present invention was made in view of the above-mentioned conventional drawbacks, and uses a butt joint without overlapping reinforcing bars, and
Moreover, even when a butt joint is used in this way, the aim is to provide a joint construction method that is much stronger than the conventional method. This method is characterized in that the fitting is coated with a metal fitting, and the interior of the fitting is filled with an expandable filler.
すなわち、本発明の構成を図示の一実施例に基づいて説
明すると、第２図において、０η０］）は、互いに突合
せ接続されるべき異径棒鋼の鉄筋両端、αのは、その内
径を、これら各鉄筋αυ０つよりも大径に形成した中空
パイプ状の継手金具であって、この継手金具（１）内に
膨張性充填剤（１３を充填して、各鉄筋Ｑｌ） （１）
の両端に跨がって外嵌被覆せしめるものであシ、該膨張
性充填剤（ｌ→は、継手金具（勢内部で膨張固化し、第
３図の如く、その膨張力が継手金具θの内径部と鉄筋０
１）０η外径部に作用し、これら各鉄筋ａ１）０υを強
固に連結するものである。That is, to explain the configuration of the present invention based on an illustrated embodiment, in FIG. A hollow pipe-shaped joint fitting (1) formed with a diameter larger than each reinforcing bar αυ0, in which an expandable filler (13) is filled in each reinforcing bar Ql (1)
The expandable filler (l→ expands and solidifies inside the joint metal fittings), and as shown in Fig. Inner diameter and reinforcing bar 0
1) It acts on the outer diameter part of 0η and firmly connects each of these reinforcing bars a1)0υ.
このような膨張性充填剤（＋３としては、例えば、小野
田セメント株式会社より商標名プライスターの名称で発
売されている膨張剤ｌ、或いは、住友セメント株式会社
より商標名Ｓマイトの名称で発売されている膨張剤等が
挙げられる。これら膨張剤の膨張力は、通常３０００ｔ
／ｍ という極めて強大なものであり、それ故、鉄筋０
１）（ＩＩ）と継手金具αつとは、３０００ｔ／７７２
′という力で締付けられていることになり、強度の高い
継手構造が得られる。本発明の発明者は、膨張性充填剤
（１，３として、上記プライスターを用いて連結した場
合の引張り耐力試験を行ない、これをセメントペースト
の充填・剤を用いた場合と比較したところ、例えば膨張
性充填剤（１３を用いたものでは、引張り耐力約５，０
ＯＯＫ’ｉｌであったのに対し、セメントペーストを用
いたものでは、約１，２００Ｋｇの引張り耐力しか得ら
れず、本発明の方が遥かに高い結合力が得られた。Such expandable fillers (+3 include, for example, Expanding Agent L, which is sold by Onoda Cement Co., Ltd. under the trade name Plaister, or Sumitomo Cement Co., Ltd., which is sold under the trade name S Mite. The swelling force of these swelling agents is usually 3000 tons.
/m, which is extremely strong, and therefore the reinforcing steel is 0.
1) (II) and the joint fitting α are 3000t/772
This means that the joint structure is tightened with a force of . The inventor of the present invention conducted a tensile strength test when the expandable fillers (1 and 3) were connected using the above-mentioned plyster, and compared this with the case where a cement paste filler/agent was used. For example, one using an expandable filler (13) has a tensile yield strength of about 5.0
In contrast to OOK'il, a tensile strength of only about 1,200 kg was obtained using cement paste, and a much higher bonding strength was obtained with the present invention.
以上の説明で解るように、本発明では、継手金合内に充
填した膨張性充填剤が膨張固化して各鉄筋と継手金具と
を強固に連結するから、結合強度の高い鉄筋構造を得る
ことができるものである。As can be understood from the above explanation, in the present invention, the expandable filler filled in the joint metal alloy expands and solidifies to firmly connect each reinforcing bar and the joint fitting, so that a reinforcing bar structure with high bonding strength can be obtained. It is something that can be done.
壕だ、本発明では、各端部を突合せ接続するものである
から鉄筋の重なり部分がなく、かつ、継手金具を含めて
も鉄筋の納りが単純で、アンカーポルトの設置が容易と
なり、また、コンクリートの回シが良好となって、豆、
果の少ないコンクリート構造が得られるとともに、各鉄
筋が一体化されることによって、梁性能も著しく増大す
る。更に、本発明に使用されるこのような膨張性充填剤
は、エポキシ樹脂等に比較して安価であるとともに、温
度変化の影響が少なく常に安定した強度が得られ、かつ
、有害性がないだめ作業条件を悪くすることがない。In the present invention, each end is butt-connected, so there is no overlapping part of the reinforcing bars, and the reinforcing bars can be easily accommodated even if the fittings are included, making it easy to install the anchor port. , the concrete is well-developed, and the beans are
A concrete structure with less damage is obtained, and the beam performance is significantly increased by integrating each reinforcing bar. Furthermore, the expandable filler used in the present invention is less expensive than epoxy resins, etc., is less affected by temperature changes, always provides stable strength, and is not harmful. Does not make working conditions worse.
第１図は、ユニット鉄筋の配筋構造の一例を示す斜視図
、第２図は、本発明実施例を示す斜視図、第３図は、鉄
筋の継手構造を示す横断面図、第４図は、同じく縦断面
図である。
ａυ・・・鉄筋 （６）・・・継手金具 （１３・・・
膨張性充填剤出願人 積水ハウス株式会社
代理人 弁理士樽本久幸Fig. 1 is a perspective view showing an example of the reinforcement structure of unit reinforcing bars, Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a cross-sectional view showing a joint structure of reinforcing bars, and Fig. 4 is also a longitudinal sectional view. aυ...Reinforcing bar (6)...Joint fittings (13...
Expansive filler applicant: Sekisui House Co., Ltd. Representative: Patent attorney Hisayuki Tarumoto
Claims (1)
金具を被覆させ、かつ、この継手金具の内部に膨張性充
填剤を充填することを特徴とする鉄筋継手工法。A reinforcing bar joint construction method characterized by covering both ends of reinforcing bars that are butt-connected to each other and covering them with a joint fitting, and filling the interior of the joint fitting with an expandable filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10427782A JPS58222248A (en) | 1982-06-17 | 1982-06-17 | Iron wire joint method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10427782A JPS58222248A (en) | 1982-06-17 | 1982-06-17 | Iron wire joint method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58222248A true JPS58222248A (en) | 1983-12-23 |
Family
ID=14376426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10427782A Pending JPS58222248A (en) | 1982-06-17 | 1982-06-17 | Iron wire joint method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58222248A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6299544A (en) * | 1985-10-23 | 1987-05-09 | 鹿島建設株式会社 | Apparatus for intermediate anchoring of unbond pc steel material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527653A (en) * | 1975-06-24 | 1977-01-20 | Kokusai Denshin Denwa Co Ltd <Kdd> | Automatic equalizer with coefficient matrix |
-
1982
- 1982-06-17 JP JP10427782A patent/JPS58222248A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527653A (en) * | 1975-06-24 | 1977-01-20 | Kokusai Denshin Denwa Co Ltd <Kdd> | Automatic equalizer with coefficient matrix |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6299544A (en) * | 1985-10-23 | 1987-05-09 | 鹿島建設株式会社 | Apparatus for intermediate anchoring of unbond pc steel material |
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