JPH06299656A - Method of joining reinforcing bar - Google Patents

Method of joining reinforcing bar

Info

Publication number
JPH06299656A
JPH06299656A JP10873893A JP10873893A JPH06299656A JP H06299656 A JPH06299656 A JP H06299656A JP 10873893 A JP10873893 A JP 10873893A JP 10873893 A JP10873893 A JP 10873893A JP H06299656 A JPH06299656 A JP H06299656A
Authority
JP
Japan
Prior art keywords
reinforcing bars
joining
reinforcing bar
joined
filler
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.)
Withdrawn
Application number
JP10873893A
Other languages
Japanese (ja)
Inventor
Masato Miyake
正人 三宅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP10873893A priority Critical patent/JPH06299656A/en
Publication of JPH06299656A publication Critical patent/JPH06299656A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/526—Joining bars
    • B29C66/5261—Joining bars for forming coaxial connections, i.e. the bars to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12443—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue substantially in the middle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B29C66/12464—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE:To enhance the freedom of designing by forming end parts of reinforcing bars in an oblique condition or in parallel with each other, subjecting the same to a friction increasing process, by fitting a cylindrical member thereon so as to cover their surfaces to be joined which are superposed with each other, and by filling an expansible filler between the reinforcing bars and the cylindrical member. CONSTITUTION:Surfaces to be joined 3 at end parts of reinforcing bars 2 to be joined are inclined so as to have an oblique angle of 3 to 25 deg. with respect to their axes. Then, the surfaces 3 to be joined of the reinforcing bars 2 is given a friction increasing process. Then, the end parts of the reinforcing bars are inserted into a cylindrical body 1 formed of a seamless steel pipe so as be covered therewith. Further, an expansible filler 4 is filled between the cylindrical body 1 and the reinforcing bars 2 so as to press the surfaces 3 against each other in order to join them.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、鉄筋の接合方法に関す
る。特に、構造物の基礎、或いは鉄筋コンクリート構造
における鉄筋の接合に使用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining reinforcing bars. In particular, it can be used for the foundation of structures or for joining reinforcing bars in reinforced concrete structures.

【０００２】[0002]

【従来の技術】従来、鉄筋を接合する工法として、例え
ば特開昭５８−２２２２４８号公報において開示される
技術が公知である。特開昭５８−２２２２４８号公報
は、図６において示すとおり、互いに突き合わされて接
続される鉄筋２の両端を跨がって継手金具５を被覆さ
せ、かつこの継手金具５の内部に膨張性充填材６を充填
する鉄筋継手工法である。2. Description of the Related Art Conventionally, as a method for joining reinforcing bars, for example, the technology disclosed in Japanese Patent Laid-Open No. 222222/1983 is known. As shown in FIG. 6, Japanese Patent Application Laid-Open No. 58-222248 discloses that the joint metal fitting 5 is covered by straddling both ends of the reinforcing bars 2 which are butted against each other, and the inside of the joint metal fitting 5 is inflatable filled. This is a reinforcing bar joint construction method for filling the material 6.

【０００３】[0003]

【発明が解決しようとする課題】ところで、近時太径鉄
筋を使用する要請が高まり、その鉄筋の直径は４０ｍｍ
から７０ｍｍ位に及ぶものがある。かかる太径鉄筋を相
互に接合しようとする場合、上述の工法によると、専ら
継手金具を介して鉄筋に働く力を伝達することになるこ
とから、鉄筋の直径に応じて継手金具の径も大きいもの
を必要とすることになる。その結果、鉄筋のピッチを密
に配置しなければならない場合、継手金具が隣接する鉄
筋、或いはその継手金具と干渉し、密に配筋することが
できなくなる。ここで、特に太径の鉄筋を使用する場合
について述べたが、太径の鉄筋でなくても、従来の鉄筋
継手工法を使用する場合、配筋上起こる問題点である。By the way, recently, there is an increasing demand to use large diameter reinforcing bars, and the diameter of the reinforcing bars is 40 mm.
To about 70 mm. When joining such large-diameter reinforcing bars to each other, according to the above-mentioned construction method, since the force acting on the reinforcing bar is transmitted exclusively through the joint fitting, the diameter of the joint fitting is also large according to the diameter of the reinforcing bar. You will need things. As a result, when the pitch of the reinforcing bars must be arranged densely, the joint fitting interferes with the adjacent reinforcing bar or its joint fitting, and the reinforcing bars cannot be arranged densely. Here, the case of using a large-diameter reinforcing bar has been described, but even if the reinforcing bar is not a large-diameter reinforcing bar, when the conventional reinforcing bar joint construction method is used, there is a problem that occurs in bar arrangement.

【０００４】従来の技術については、この他特開昭４８
−９５０３０号公報の技術があるが、上述したと同様の
問題点をかかえる。Regarding the prior art, Japanese Patent Application Laid-Open No. 48
There is a technique disclosed in Japanese Patent Laid-Open No. 95030, but it has the same problem as described above.

【０００５】本発明は、上述の問題点を解決し、従来の
継手金具に比してコンパクトであり、しかも鉄筋の軸力
の伝達の点からも全く支障のない鉄筋の接合方法を提供
することを目的とする。The present invention solves the above-mentioned problems and provides a method for joining reinforcing bars which is more compact than conventional fittings and has no problem in terms of transmission of axial force of the reinforcing bars. With the goal.

【０００６】[0006]

【課題を解決するための手段】前記目的を達成するため
に、本発明の鉄筋の接合方法は、筒体内に、接合すべき
鉄筋の端部を挿入し、膨張性充填材を充填し、鉄筋を接
合する方法において、鉄筋の端部の相互の接合面は該鉄
筋の軸方向に傾斜、若しくは平行した面により形成さ
れ、且つ増摩擦処理を施され、前記膨張性充填材の膨張
圧力によって前記接合面を相互に押圧することにより、
鉄筋を継ぎ合わせることにより構成される。本発明にお
いて、筒体は、中空の円筒を使用することができ、その
長さは後述する鉄筋の端部の傾斜、若しくは平行した面
を覆うことができるものであることが好ましい。膨張性
充填材としては既に知られている静的破砕材を使用する
ことができる。鉄筋の端部の相互の接合面は、鉄筋の軸
方向に傾斜、若しくは平行した面により形成される。ま
た、その。増摩擦処理はサンドブラスト、ショットブラ
スト、サンダーかけ、酸化炎吹き付け等により行う。増
摩擦処理を施した接合面は、筒体内に充填された膨張性
充填材の膨張圧力と相まって鉄筋の軸力の伝達を分担
し、鉄筋から鉄筋へと直接軸力を伝達する。In order to achieve the above-mentioned object, the method for joining reinforcing bars of the present invention is such that the ends of the reinforcing bars to be joined are inserted into a cylindrical body and filled with an expansive filler, In the method of joining, the mutual joining surfaces of the end portions of the reinforcing bars are formed by planes inclined or parallel to the axial direction of the reinforcing bars, and subjected to friction increasing treatment, and the expansion pressure of the expansive filler causes By pressing the joint surfaces against each other,
It is composed by joining reinforcing bars. In the present invention, a hollow cylinder can be used as the cylindrical body, and the length thereof is preferably one that can cover the slope or the parallel surface of the end portion of the reinforcing bar described later. As the expansive filler, it is possible to use the already known static crushing material. The mutual joint surfaces of the ends of the reinforcing bars are formed by surfaces inclined or parallel to the axial direction of the reinforcing bars. Also that. The friction increasing treatment is performed by sandblasting, shot blasting, sanding, spraying with an oxidizing flame, or the like. The joint surface that has been subjected to the friction increasing treatment shares the transmission of the axial force of the reinforcing bar together with the expansion pressure of the expansive filler filled in the cylindrical body, and directly transmits the axial force from the reinforcing bar to the reinforcing bar.

【０００７】本発明においては、鉄筋相互の接合面間に
膨張性充填材を介在させて接合面を接触させるようにし
てもよい。In the present invention, an expansive filler may be interposed between the joining surfaces of the reinforcing bars to bring the joining surfaces into contact with each other.

【０００８】[0008]

【作用】本発明では、鉄筋の端部の相互の接合面は該鉄
筋の軸方向に傾斜、若しくは平行した面により形成さ
れ、且つ増摩擦処理を施され、前記膨張性充填材の膨張
圧力によって前記接合面を相互に押圧することにより、
直接的に鉄筋の伝達すべき軸力の大部分、若しくは一部
を鉄筋から鉄筋へ伝達することができる。それだけ、従
来の工法において、専ら継手金具を介して軸力を伝達す
るのと異なり、筒体の負担は軽減、緩和される。According to the present invention, the joint surfaces of the end portions of the reinforcing bars are formed by planes inclined or parallel to the axial direction of the reinforcing bars, and subjected to friction increasing treatment, and the expansion pressure of the expansive filler causes By pressing the joint surfaces against each other,
Most or part of the axial force to be transmitted by the reinforcing bar can be directly transmitted from the reinforcing bar to the reinforcing bar. Unlike that, in the conventional construction method, unlike the case where the axial force is transmitted exclusively through the joint fitting, the load on the cylindrical body is reduced and alleviated.

【０００９】[0009]

【実施例】以下、本発明の実施例を図面を参照して説明
する。図１おいて、筒体１内に鉄筋２、２が挿入されて
いる。本例では、鉄筋２、２の端部での接合面３はそれ
ぞれ単一の傾斜した面をもって形成されている。このよ
うに、単一の傾斜した面の場合、その傾斜角は軸方向に
対して３°〜２５°であることが好ましい。３°より小
さいと、傾斜した端部が長くなり過ぎ、これに応じて筒
体の長さが大きくなり、得策ではなくなるからである。
また、２５°より大きくなると、鉄筋の端部の相互の接
合面３を介しての軸力の伝達が弱くなるからである。こ
こで、図５（イ）により、本例を具体的に説明すると、
鋼棒の鉄筋２、２の直径は３０ｍｍであり、傾斜面の投
影長さは２００ｍｍであり、かかる鉄筋２、２の両端部
を外径５０ｍｍ、内径４０ｍｍ、長さ３００ｍｍのシー
ムレス鋼管の筒体１により覆う。接合面はショットブラ
ストにより増摩擦処理を行った。また、膨張充填材４と
して静的破砕材（小野田セメント（株）商品名ブライス
ター）を使用し、筒体１と鉄筋２、２間に充填した。一
方、比較のために、図５（ロ）において示す従来の工法
において、鉄筋端部の突き合わせの点を除くと、図５
（イ）と同様にした。図５（イ）の試験体Ａと図５
（ロ）の試験体Ｂを作成し、軸力を付与して、両者につ
いて、試験を行い、次の表１の結果を得た。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the reinforcing bars 2 and 2 are inserted in the cylindrical body 1. In this example, the joint surfaces 3 at the ends of the reinforcing bars 2 and 2 are each formed with a single inclined surface. Thus, in the case of a single inclined surface, its inclination angle is preferably 3 ° to 25 ° with respect to the axial direction. This is because if the angle is smaller than 3 °, the slanted end portion becomes too long, and the length of the cylindrical body increases accordingly, which is not a good idea.
Further, if the angle is larger than 25 °, the transmission of the axial force becomes weak via the joint surface 3 between the ends of the reinforcing bars. Here, the present example will be specifically described with reference to FIG.
The steel rods 2 and 2 have a diameter of 30 mm, the projected length of the inclined surface is 200 mm, and the both ends of the reinforcing rods 2 and 2 have an outer diameter of 50 mm, an inner diameter of 40 mm, and a length of 300 mm. Cover with 1. The joint surface was subjected to a friction increasing treatment by shot blasting. A static crushing material (Bryster, trade name of Onoda Cement Co., Ltd.) was used as the expansion filling material 4, and was filled between the cylindrical body 1 and the reinforcing bars 2 and 2. On the other hand, for comparison, in the conventional method shown in FIG.
Same as (a). Specimen A of FIG. 5 (a) and FIG.
The test body B of (b) was prepared, axial force was applied, and both were tested, and the results of the following Table 1 were obtained.

【００１０】[0010]

【表１】 表１で判るように、試験体Ａと同等の耐力を確保するに
は、試験体Ｂの肉厚を増加する必要があり、外径を大き
くしなければならない。その外径は約６０ｍｍである。
このことは、試験体Ａにおいては、筒体の負担が低減さ
れていることを示す。なお、この試験は、膨張充填材を
打設してから、４８時間後、膨張圧力が６００ｋｇｆ／
ｃｍ2 を超えたのを確認した後、引張試験により軸力を
付与した。[Table 1] As can be seen from Table 1, in order to secure the proof stress equivalent to that of the test body A, it is necessary to increase the wall thickness of the test body B and increase the outer diameter. Its outer diameter is about 60 mm.
This shows that in the test body A, the load on the cylindrical body is reduced. In this test, 48 hours after the expansion filler was placed, the expansion pressure was 600 kgf /
After confirming that it exceeded cm 2 , an axial force was applied by a tensile test.

【００１１】次に、図２は、鉄筋２の傾斜した接合面３
ａ、３ａ間に膨張充填材４と同じ材料である静的破砕材
４ａ（小野田セメント（株）商品名ブライスター）を介
在させた例を示す。図３は、鉄筋２の軸から等距離で、
相互に平行な接合面３ａ、３ａを設け、鉄筋２を相互に
嵌合させた例を示す。図４は、鉄筋２の軸を含む面に対
して等しい角度に傾斜し、交差した接合面３ｂ、３ｂを
設けた場合を示す。Next, FIG. 2 shows the inclined joint surface 3 of the reinforcing bar 2.
An example in which a static crushing material 4a (Brander, trade name of Onoda Cement Co., Ltd.), which is the same material as the expansive filler 4, is interposed between a and 3a. Figure 3 shows equidistant from the axis of rebar 2,
An example is shown in which joint surfaces 3a, 3a parallel to each other are provided and the reinforcing bars 2 are fitted to each other. FIG. 4 shows a case where the joining surfaces 3b and 3b that are inclined at equal angles with respect to the surface including the axis of the reinforcing bar 2 and are intersected with each other are provided.

【００１２】[0012]

【発明の効果】本発明によれば、従来の継手金具に比し
てコンパクトな筒体による鉄筋相互の直接的な接合によ
る軸力の分担が可能となり、配筋設計上の自由度をより
有利に確保でき、しかも鉄筋の軸力の伝達の点からも全
く支障のない鉄筋の接合方法を提供することができるAccording to the present invention, the axial force can be shared by the direct joining of the reinforcing bars by the compact cylindrical body as compared with the conventional joint fitting, and the degree of freedom in the bar arrangement design is more advantageous. It is possible to provide a method for joining rebars that can be secured in a secure manner and has no problem in terms of transmission of axial force of the rebars.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例を説明する図である。FIG. 1 is a diagram illustrating an example of the present invention.

【図２】本発明の実施例を説明する図である。FIG. 2 is a diagram illustrating an example of the present invention.

【図３】本発明の実施例を説明する図である。FIG. 3 is a diagram illustrating an example of the present invention.

【図４】本発明の実施例を説明する図である。FIG. 4 is a diagram illustrating an example of the present invention.

【図５】図１の実施例を具体的に説明する図である。FIG. 5 is a diagram for specifically explaining the embodiment of FIG.

【図６】先行技術を説明する図である。FIG. 6 is a diagram illustrating a prior art.

【符号の説明】[Explanation of symbols]

１ 筒体 ２ 鉄筋 ３ 接合面 ４ 膨張性充填材 ５ 継手金具 ６ 膨張性充填材 1 Cylindrical Body 2 Reinforcing Bar 3 Joint Surface 4 Expandable Filler 5 Joint Fitting 6 Expandable Filler

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 筒体内に、接合すべき鉄筋の端部を挿入
し、膨張性充填材を充填し、鉄筋を接合する方法におい
て、鉄筋の端部の相互の接合面は該鉄筋の軸方向に傾
斜、若しくは平行した面により形成され、且つ増摩擦処
理を施され、前記膨張性充填材の膨張圧力によって前記
接合面を相互に押圧することにより、鉄筋を継ぎ合わせ
ることを特徴とする鉄筋の接合方法。1. In a method of inserting the ends of rebars to be joined into a tubular body, filling an expansive filler, and joining the rebars, the mutual joining surfaces of the ends of the rebars are in the axial direction of the rebars. Formed by inclined or parallel surfaces, and subjected to a friction-increasing treatment, and by pressing the joining surfaces against each other by the expansion pressure of the expandable filler, the reinforcing bars are joined together. Joining method. 【請求項２】 接合面間に膨張充填材を介在させた請求
項１記載の鉄筋の接合方法。2. The method for joining reinforcing bars according to claim 1, wherein an expansion filler is interposed between the joining surfaces.
JP10873893A 1993-04-13 1993-04-13 Method of joining reinforcing bar Withdrawn JPH06299656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10873893A JPH06299656A (en) 1993-04-13 1993-04-13 Method of joining reinforcing bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10873893A JPH06299656A (en) 1993-04-13 1993-04-13 Method of joining reinforcing bar

Publications (1)

Publication Number Publication Date
JPH06299656A true JPH06299656A (en) 1994-10-25

Family

ID=14492277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10873893A Withdrawn JPH06299656A (en) 1993-04-13 1993-04-13 Method of joining reinforcing bar

Country Status (1)

Country Link
JP (1) JPH06299656A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002036900A1 (en) * 2000-10-30 2002-05-10 Yamax Corp. Expansion joint and reinforcement connection method using the expansion joint
JP2006122311A (en) * 2004-10-28 2006-05-18 Tokusen Kogyo Co Ltd Guide wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002036900A1 (en) * 2000-10-30 2002-05-10 Yamax Corp. Expansion joint and reinforcement connection method using the expansion joint
US7003921B2 (en) 2000-10-30 2006-02-28 Yamax Corp. Expansion joint and reinforcement connection method using the expansion joint
JP2006122311A (en) * 2004-10-28 2006-05-18 Tokusen Kogyo Co Ltd Guide wire

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