JP3466155B2 - Composite strand, composite cable and method of using the same - Google Patents
Composite strand, composite cable and method of using the sameInfo
- Publication number
- JP3466155B2 JP3466155B2 JP2001010048A JP2001010048A JP3466155B2 JP 3466155 B2 JP3466155 B2 JP 3466155B2 JP 2001010048 A JP2001010048 A JP 2001010048A JP 2001010048 A JP2001010048 A JP 2001010048A JP 3466155 B2 JP3466155 B2 JP 3466155B2
- Authority
- JP
- Japan
- Prior art keywords
- composite
- continuous fiber
- strand
- steel
- weather
- 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 - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/16—Auxiliary apparatus
- D07B7/167—Auxiliary apparatus for joining rope components
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/16—Auxiliary apparatus
- D07B7/169—Auxiliary apparatus for interconnecting two cable or rope ends, e.g. by splicing or sewing
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2015—Construction industries
- D07B2501/2023—Concrete enforcements
Landscapes
- Wire Processing (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Reinforcement Elements For Buildings (AREA)
- Ropes Or Cables (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、プレストレストコ
ンクリートの緊張力導入に用いる緊張材及びその使用方
法に関し、さらに詳しくは、耐候性PC鋼より線と、連
続繊維補強材とを接合して形成した複合ストランド、複
合ケーブル及びその使用方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension material used for introducing a tension force of prestressed concrete and a method of using the tension material. More specifically, it is formed by joining a weather resistant PC steel stranded wire and a continuous fiber reinforcing material. The present invention relates to a composite strand, a composite cable and a method of using the same.
【0002】[0002]
【従来の技術】プレストレストコンクリートにプレスト
レスを導入する緊張材としては、通常、PC鋼材が用い
られる。PC鋼材は、鋼製であるため、一般的なもので
は腐食性雰囲気など使用条件に対して、十分な耐食性、
耐候性を期待できない場合がある。2. Description of the Related Art PC steel is generally used as a tension material for introducing prestress into prestressed concrete. Since PC steel is made of steel, in general, it has sufficient corrosion resistance against operating conditions such as corrosive atmosphere,
In some cases, weather resistance cannot be expected.
【0003】耐候性を有するPC緊張材としては、耐候
性PC鋼より線、エポキシ樹脂被覆PC鋼材、アルミニ
ウム又は亜鉛メッキPC鋼材、ステンレスPC鋼材など
がある。また、耐候性を有する他の緊張材として、連続
繊維補強材がある。連続繊維補強材とは土木学会の用語
であって、炭素繊維、アラミド繊維、ガラス繊維等で強
化した樹脂から成る繊維補強材料をいう。これらは新素
材として使われている。これらの新素材は、軽量、高耐
食性、高強度、低磁性などの優位性があるほか、従来の
PC鋼材と比較して、機械的、物理的諸特性にも安定性
があり、緊張を行う強度部材として認知されている。た
だ、強度的に唯一の弱点は、剪断に弱いことである。剪
断強さは一般鋼材に比べて.1/4〜1/5と低く、そ
のため.取扱に特別な注意を払う必要がある。Examples of the PC tension material having weather resistance include a stranded PC steel wire having weather resistance, an epoxy resin-coated PC steel material, an aluminum or galvanized PC steel material, and a stainless PC steel material. Further, as another tension material having weather resistance, there is a continuous fiber reinforcing material. The continuous fiber reinforcing material is a term used by the Japan Society of Civil Engineers and refers to a fiber reinforcing material made of a resin reinforced with carbon fiber, aramid fiber, glass fiber or the like. These are used as new materials. These new materials have advantages such as light weight, high corrosion resistance, high strength, low magnetism, etc., and also have more stable mechanical and physical properties than conventional PC steel materials, so that tension is exerted. It is recognized as a strength member. However, the only weak point in terms of strength is that it is weak against shearing. The shear strength is higher than that of general steel. It is as low as 1/4 to 1/5, so. Special care needs to be taken in handling.
【0004】一般のPC鋼より線を緊張定着する場合、
内面に歯形加工をした「くさび」を用いてPC鋼より線
を直接つかみ、緊張、定着を任意の位置で行っている。
一方、連続繊維補強材は、前記のごとく、剪断強さが小
さいため、「くさび」で直接、新素材を掴んで定着する
など過度の剪断力を付加することが出来ない。その対策
として、外周にネジを切削加工した鋼製の中空円筒状の
外筒管のなかに新素材を挿入し、樹脂等の充填材を入
れ、接着と付着効果により、外筒管と新素材とを一体化
し、ステンレス鋼製外筒管のネジとステンレス製ナット
の組合せにより緊張定着を行っている。このような技術
によれば、新素材と鋼製外筒管との一体化加工は工場で
行うこととなるため、緊張による線材自身の伸びと実際
の線材の長さとを調整する必要があり、事前に正確な加
工長さを設定し、定着部を工場で手作りで製作をしてい
る。When tensioning and fixing a general PC steel strand,
Using a "wedge" with a tooth profile on the inner surface, the PC stranded wire is directly gripped, and tension and fixing are performed at arbitrary positions.
On the other hand, since the continuous fiber reinforcing material has a small shear strength as described above, it is impossible to apply an excessive shearing force such as directly grasping and fixing a new material with a “wedge”. As a countermeasure, insert a new material into a steel hollow cylindrical outer cylinder tube with a thread cut on the outer periphery, put a filling material such as resin, and use an adhesive and adhesion effect to create an outer cylinder tube and a new material. Are integrated and the tension is fixed by the combination of the screw of the stainless steel outer tube and the nut of the stainless steel. According to such a technique, since the integrated processing of the new material and the steel outer cylinder tube is performed in the factory, it is necessary to adjust the elongation of the wire itself due to the tension and the actual length of the wire, The fixing length is set in advance and the fixing part is hand-made at the factory.
【0005】[0005]
【発明が解決しようとする課題】以上の技術では、以下
の課題があった。
1.鋼製外筒管長さは、線材の全長に応じて伸びが異な
るので、長さが変化することになり、従って、適用する
線材の長さに限界がある。
2.鋼製外筒管の直径に限界があるため、新素材の大耐
力化に限界がある。
3.鋼製外筒管を取付けたケーブルは、工場製作のた
め、現場での長さの調整はできない。
4.鋼製外筒管を取付けたケーブルは運搬取り扱い費が
高い。
5.鋼製外筒管を取付けたケーブルを通過させることが
できる太径シースを、構造物に埋め込んでおかねばなら
ない。このため、シースの材料、据え付けのコストが余
分にかかる。
6.重い鋼製外筒管を取付けたケーブルの据え付けに、
特別な機材を使う必要がある。また、鋼製外筒管がある
ため緊張ジャッキ据え付け作業が複雑になる。これらに
起因して、ハンドリングの作業時間とそのコストが余分
にかかる。
7.緊張後突出した鋼製外筒管を保護する防錆カバー
が、太く長くなり、コストが余分にかかる。
8.鋼製外筒管の製作および加工のコストが高い。The above techniques have the following problems. 1. Since the length of the steel outer cylinder tube varies depending on the total length of the wire rod, the length changes, and thus the length of the wire rod to be applied is limited. 2. Since there is a limit to the diameter of the steel outer tube, there is a limit to the increase in the yield strength of the new material. 3. The length of the cable with the steel outer tube attached cannot be adjusted on site because it is manufactured at the factory. 4. Cables with steel outer tube are expensive to carry and handle. 5. A large-diameter sheath that allows a cable with a steel outer tube attached to pass through must be embedded in the structure. Therefore, the material for the sheath and the cost for installation are extra. 6. For installing cables with heavy steel outer tube attached,
You need to use special equipment. Further, the steel outer cylinder tube complicates the installation work of the tension jack. Due to these factors, handling work time and its cost are extra. 7. The rust-proof cover that protects the steel outer tube that protrudes after tension becomes thick and long, and costs extra. 8. The cost of manufacturing and processing the steel outer tube is high.
【0006】本発明は以上の問題点を解決した複合スト
ランド、複合ケーブル及びその使用方法を提供すること
を目的とする。An object of the present invention is to provide a composite strand, a composite cable and a method of using the same, which solve the above problems.
【0007】[0007]
【課題を解決するための手段】本発明は、上記問題点を
解決するためになされたもので、PC鋼材と樹脂補強繊
維緊張材のそれぞれ利点を発揮させ、欠点を打ち消すよ
うに巧妙に組み合わせ、これらの技術を有効に活用し
て、適用範囲を大幅に拡大することを目的とし、耐候性
PC鋼より線及び連続繊維補強材で構成した耐候性ハイ
ブリッドより線からなる複合ストランド、複合ケーブ
ル、及びその使用方法を提供する。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and combines the PC steel material and the resin-reinforced fiber tension material so as to exert their respective advantages, and to skillfully combine them so as to cancel the drawbacks. The composite strand, the composite cable, and the composite cable, which are made of weather resistant PC steel stranded wire and weather resistant hybrid stranded wire composed of continuous fiber reinforcement, are used for the purpose of effectively utilizing these technologies and greatly expanding the scope of application. Provide its usage.
【0008】すなわち本発明は、耐候性PC鋼より線及
び連続繊維補強材の各素線を長手方向の異なる位置でそ
れぞれ突き合わせて撚り線状の連続線材に組み上げ、耐
候性PC鋼より線及び連続繊維補強材の連結部を形成
し、該連結部外周に、樹脂を塗布した補強繊維シートを
螺旋状に緊密に巻き付け、該シート表面の樹脂を加熱冷
却して硬化させ、耐候性PC鋼より線と連続繊維補強材
とを連結してなることを特徴とする複合ストランドであ
る。That is, according to the present invention, the weather-resistant PC stranded wire and the continuous fiber reinforcing material are butt-joined at different positions in the longitudinal direction to assemble them into a stranded continuous wire, and the weather-resistant PC stranded wire and continuous wire are formed. A connecting portion of the fiber reinforcing material is formed, a reinforcing fiber sheet coated with a resin is tightly wound around the connecting portion in a spiral shape, and the resin on the surface of the sheet is heated and cooled to be hardened. And a continuous fiber reinforcing material, which is a composite strand.
【0009】この場合に、前記シートの巻き付けに代わ
り、前記連結部外周に微小隙間をもって遊嵌する耐候性
チューブを外嵌し、その内部に樹脂を加圧充填し、耐候
性PC鋼より線と連続繊維補強材とを連結して構成して
もよい。なお、前記耐候性PC鋼より線と連続繊維補強
材が7本より線又は19本より線とした場合、効果的に
この複合ストランドを実現することができる。In this case, instead of winding the sheet, a weatherproof tube which is loosely fitted around the outer periphery of the connecting portion with a minute gap is externally fitted, and the inside of the tube is pressure-filled with a weatherproof PC steel stranded wire. You may connect and comprise a continuous fiber reinforcement material. In addition, when the weather resistant PC steel stranded wire and the continuous fiber reinforcing material are 7 stranded wires or 19 stranded wires, this composite strand can be effectively realized.
【0010】また本発明の第2の発明に係る複合ストラ
ンドは、耐候性PC鋼より線及び連続繊維補強材をそれ
ぞれ連結部長さ分の撚りを解き、解いた素線をそれぞれ
スペーサの孔に通してスペーサを連結部の始終箇所に位
置させ、耐候性PC鋼より線及び連続繊維補強材の撚り
を解いた素線同士を長手方向に互いに重複させて並列に
配置し、耐候性PC鋼より線及び連続繊維補強材の連結
部を形成し、前記スペーサに外嵌する耐候性チューブで
スペーサ及び連結部外周を覆い、該チューブの内部に樹
脂を充填し、耐候性PC鋼より線と連続繊維補強材とを
連結してなることを特徴とする複合ストランドである。
この複合ストランドは、素線を突き合わせて形成した前
記複合ストランドに比し、連結部の外径が大きくなる
が、製作容易で信頼性が高いと言う利点がある。In the composite strand according to the second aspect of the present invention, the weather resistant PC steel stranded wire and the continuous fiber reinforcing material are each untwisted by the length of the connecting portion, and the unwound strands are respectively passed through the holes of the spacer. Spacers are located at the beginning and end of the connecting part, and the untwisted strands of the weatherproof PC steel strands and continuous fiber reinforcement are placed in parallel with each other in the longitudinal direction so that the weatherproof PC steel strands And a continuous portion of continuous fiber reinforcing material is formed, the spacer and the outer periphery of the connecting portion are covered with a weatherproof tube which is fitted onto the spacer, and the inside of the tube is filled with resin, and a weatherproof PC steel strand and continuous fiber reinforcement are formed. A composite strand characterized in that it is formed by connecting materials.
The composite strand has an outer diameter of the connecting portion larger than that of the composite strand formed by abutting the strands, but has an advantage that it is easy to manufacture and has high reliability.
【0011】次に、本発明の第3の発明は、上記何れか
の複合ストランド3本〜20本を、複合ストランドの連
結部の始終箇所に位置した2枚のスペーサの孔を貫通さ
せて平行配置し、スペーサに外嵌する内径を有する耐候
性チューブでスペーサ及び連結部を覆い、覆いの内部に
樹脂を充填して形成した複数本の複合ストランドからな
ることを特徴とする複合ケーブルを提供する。この複合
ケーブルは、多数の複合ストランドをテンドンとして用
いる場合に効果的である。Next, in a third aspect of the present invention, 3 to 20 of any of the above-described composite strands are parallel to each other by penetrating through holes of two spacers located at the beginning and end of the connecting portion of the composite strand. Disclosed is a composite cable characterized by comprising a plurality of composite strands formed by covering a spacer and a connecting portion with a weatherproof tube having an inner diameter that fits over the spacer, and filling the interior of the cover with a resin. . This composite cable is effective when a large number of composite strands are used as a tendon.
【0012】さらに本発明は、上記何れかの複合ストラ
ンド又は複合ケーブルを緊張材として用い、PC鋼材の
部分に緊張定着装置を配設して緊張することを特徴とす
る複合ストランド又は複合ケーブルの使用方法を提供す
る。このことによって本発明の複合ストランド又は複合
ケーブルは、連続繊維補強材に比べて定着が容易とな
る。また、これらの複合ストランド又は複合ケーブルを
用い、PC鋼材の部分で、前記複合ストランド同士又は
前記複合ケーブル同士の接続を行うことを特徴とする複
合ストランド又は複合ケーブルの使用方法を提供する。
このことによって本発明の複合ストランド又は複合ケー
ブルは、連続繊維補強材のみの場合に比べてストランド
又はケーブルの結合が容易となる。Furthermore, the present invention uses any one of the above-mentioned composite strands or composite cables as a tension material, and arranges a tension fixing device in the portion of the PC steel material for tensioning. Provide a way. This allows the composite strands or cables of the present invention to be more easily fixed than continuous fiber reinforcements. Further, there is provided a method of using a composite strand or a composite cable, wherein the composite strands or the composite cables are connected to each other at a PC steel material portion by using these composite strands or the composite cable.
As a result, the composite strand or composite cable of the present invention facilitates the connection of the strand or cable as compared with the case where only the continuous fiber reinforcing material is used.
【0013】[0013]
【発明の実施の形態】以下図面を参照して本発明の実施
の形態を説明する。図1は本発明の実施例を示す複合ス
トランドの構造を示す側面図で、被覆を施す前の状態を
示すものである。耐候性PC鋼より線10と、連続繊維
補強材20の、それぞれの各素線11及び21を長手方
向の異なる位置12でそれぞれ突き合わせて撚り線状の
連続線材に組み上げて連結部30を形成してある。図2
はこの連結部30の外周に、樹脂を塗布した補強繊維シ
ート31を螺旋状に緊密に巻き付け、この繊維シート3
1の表面を樹脂で加熱硬化し、耐候性PC鋼より線10
と連続繊維補強材20とを連結した複合ストランド1を
示している。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a structure of a composite strand showing an embodiment of the present invention, showing a state before coating. The strands 11 and 21 of the weatherproof PC steel stranded wire 10 and the continuous fiber reinforcing material 20 are butted against each other at different positions 12 in the longitudinal direction and assembled into a stranded continuous wire material to form a connecting portion 30. There is. Figure 2
A reinforcing fiber sheet 31 coated with a resin is tightly wound spirally around the outer periphery of the connecting portion 30.
The surface of 1 is heated and hardened with resin, and the weather resistance PC steel stranded wire 10
1 shows a composite strand 1 in which the continuous fiber reinforcement 20 and the
【0014】図3は図2の補強繊維シート31の巻き付
けに代わり、撚り線外径に微小隙間で遊嵌する耐候性チ
ューブ32を連結部30に外嵌した複合ストランド1を
示している。この複合ストランド1は耐候性チューブ3
2の内部に樹脂を加圧充填し、耐候性PC鋼より線10
と連続繊維補強材20とを連結した複合ストランド1で
ある。FIG. 3 shows a composite strand 1 in which, instead of winding the reinforcing fiber sheet 31 shown in FIG. 2, a weather resistant tube 32 which is loosely fitted to the outer diameter of the stranded wire with a minute gap is externally fitted to the connecting portion 30. This composite strand 1 is a weatherproof tube 3
2 is pressure-filled with resin and weatherproof PC steel stranded wire 10
It is a composite strand 1 in which the continuous fiber reinforcement 20 and the
【0015】図4は別の実施例を示す側面図である。耐
候性PC鋼より線10と、連続繊維補強材20とをそれ
ぞれ連結部30の長さ分の撚りを解き、撚りを解いた素
線11、21をそれぞれ2枚のスペーサ41の孔に通し
てスペーサ41を連結部30の始終箇所に位置させ、耐
候性PC鋼より線10及び連続繊維補強材20の撚りを
解いた素線11、21を互いに重複させて並列配置して
連結部を形成した状態を示している。この後、図3に示
すものと同様な耐候性チューブ32をスペーサ及び連結
部に外嵌させてスペーサ41及び連結部外周を覆い、こ
のチューブ32の内部に樹脂を充填し、耐候性PC鋼よ
り線10と連続繊維補強材20とを連結して複合ストラ
ンド1を形成する。FIG. 4 is a side view showing another embodiment. The weather resistant PC stranded wire 10 and the continuous fiber reinforcing material 20 are each untwisted for the length of the connecting portion 30, and the untwisted wires 11 and 21 are passed through the holes of the two spacers 41, respectively. The spacer 41 is located at the beginning and end of the connecting portion 30, and the untwisted strands 11 and 21 of the weatherproof PC steel stranded wire 10 and the continuous fiber reinforcing material 20 are arranged in parallel with each other to form a connecting portion. It shows the state. After that, a weather resistant tube 32 similar to that shown in FIG. 3 is externally fitted to the spacer and the connecting portion to cover the outer periphery of the spacer 41 and the connecting portion, and the inside of the tube 32 is filled with a resin. The wire 10 and the continuous fiber reinforcement 20 are connected to form the composite strand 1.
【0016】図5は本発明の複合ケーブル2の説明図で
ある。複合ケーブル2は上述の複合ストランド1を多数
並列に配設して、テンドンを形成したものである。3本
〜20本の複合ストランド1をスペーサ41を貫通させ
て並列に配置する。スペーサ41は、図6に示すように
多数の貫通孔42を備えた円板である。図6(a)はス
ペーサ41の側面図、図6(b)はその正面図である。
多数の複合ストランドの耐候性PC鋼より線10と連続
繊維補強材20の連結部30の始終箇所にスペーサ41
を位置させる。2枚のスペーサ41に外嵌する耐候性チ
ューブ32で連結部30を覆い、その内部に樹脂を充填
する。このようにして3〜20本の複合ストランドから
なる複合ケーブルを製造する。FIG. 5 is an explanatory view of the composite cable 2 of the present invention. The composite cable 2 is formed by arranging a large number of the above-mentioned composite strands 1 in parallel to form a tendon. The spacer 41 is penetrated and 3 to 20 composite strands 1 are arrange | positioned in parallel. The spacer 41 is a disk having a large number of through holes 42 as shown in FIG. FIG. 6A is a side view of the spacer 41, and FIG. 6B is a front view thereof.
Spacers 41 at the beginning and end of the connecting portion 30 between the weatherproof PC steel strand 10 and the continuous fiber reinforcing material 20 of many composite strands.
Position. The connecting portion 30 is covered with a weatherproof tube 32 fitted onto the two spacers 41, and the inside thereof is filled with resin. In this way, a composite cable composed of 3 to 20 composite strands is manufactured.
【0017】図7は耐候性PC鋼より線10と連続繊維
補強材20とを連結部30で連結した本発明の複合スト
ランド1又は複合ケーブル2を緊張材として用い、耐候
性PC鋼より線10の部分に緊張定着装置51を配設し
て緊張して使用する複合ストランド又は複合ケーブルの
使用方法を示している。図8はそれぞれ耐候性PC鋼よ
り線10と連続繊維補強材20とを連結部30で連結し
た本発明の複合ストランド1aと1b、又は複合ケーブ
ル2aと2bを緊張材として用い、両者の耐候性PC鋼
より線10の部分をカプラー52で接続した使用状態を
示している。連続繊維補強材では剪断力が小さいので、
定着部や接続部の構造が複雑で大型のものとなる。従っ
て、運搬取り扱い、据付け作業等が大掛かりとなり、ま
た、大径のシースを用いる必要があり、取り扱いが面倒
で高価となる。これに対して、本発明の複合ストランド
又は複合ケーブルは以上のように構成されているので、
耐食性、耐候性に富むと共に、定着又はカプラー接続
を、図7、図8に示すように、耐候性PC鋼より線の部
分で行うので、連続繊維補強材の定着又は接続に比べ、
簡易な構造でよい。FIG. 7 shows the weather resistant PC steel stranded wire 10 using the composite strand 1 or the composite cable 2 of the present invention in which the weather resistant PC steel stranded wire 10 and the continuous fiber reinforcing material 20 are connected by the connecting portion 30. The method of using the composite strand or the composite cable, in which the tension fixing device 51 is arranged in the portion of FIG. FIG. 8 shows that each of the composite strands 1a and 1b of the present invention or the composite cables 2a and 2b of the present invention in which the weather resistant PC steel strand 10 and the continuous fiber reinforcing material 20 are connected by the connecting portion 30 is used as a tension member, and the weather resistance of both of them is used. It shows a use state in which the portion of the PC stranded wire 10 is connected by the coupler 52. Since the shearing force is small with continuous fiber reinforcement,
The structure of the fixing unit and the connecting unit is complicated and large. Therefore, it requires a large amount of transportation and installation work, and also requires the use of a large-diameter sheath, which makes the handling cumbersome and expensive. On the other hand, since the composite strand or composite cable of the present invention is configured as described above,
In addition to being excellent in corrosion resistance and weather resistance, fixing or coupler connection is performed at the portion of the weather resistant PC steel stranded wire as shown in FIG. 7 and FIG.
A simple structure is enough.
【0018】[0018]
【発明の効果】本発明によれば、連続繊維補強材のせん
断力が小さいという唯一の欠点を解消し、耐候性、耐食
性に富む複合ストランド又は複合ケーブルを得ることが
できた。この複合ストランド又は複合ケーブルは、PC
鋼材の部分で定着又は接続するので、連続繊維補強材単
独の場合のように大きな定着構造又は連結構造を必要と
しないから、格別の大径のシースを用いる必要がなく、
また、運搬取り扱い、据付け作業等が容易で、安価であ
る。EFFECTS OF THE INVENTION According to the present invention, the only drawback of the continuous fiber reinforcement having a small shearing force can be solved, and a composite strand or a composite cable excellent in weather resistance and corrosion resistance can be obtained. This composite strand or cable is a PC
Since it is fixed or connected at the steel part, there is no need to use a large fixing structure or connecting structure as in the case of the continuous fiber reinforcing material alone, so there is no need to use an exceptionally large diameter sheath,
In addition, it is easy to carry and install, and is inexpensive.
【図1】実施例の側面図である。FIG. 1 is a side view of an embodiment.
【図2】実施例の側面図である。FIG. 2 is a side view of the embodiment.
【図3】実施例の側面図である。FIG. 3 is a side view of the embodiment.
【図4】実施例の側面図である。FIG. 4 is a side view of the embodiment.
【図5】実施例の側面図である。FIG. 5 is a side view of the embodiment.
【図6】スペーサの(a)側面図、(b)正面図であ
る。6A and 6B are a side view and a front view of a spacer.
【図7】実施例の使用方法を示す説明図である。FIG. 7 is an explanatory diagram showing a method of using the embodiment.
【図8】実施例の使用方法を示す説明図である。FIG. 8 is an explanatory diagram showing a method of using the embodiment.
1 複合ストランド 2 複合ケーブル 10 耐候性PC鋼より線 11 素線 12 位置 20 連続繊維補強材 21 素線 30 連結部 31 補強繊維シート 32 耐候性チューブ 41 スペーサ 42 貫通孔 51 緊張定着装置 52 カプラ 1 composite strand 2 composite cable 10 Weatherproof PC steel stranded wire 11 strands 12 position 20 Continuous fiber reinforcement 21 strands 30 connection 31 Reinforcing fiber sheet 32 Weatherproof tube 41 Spacer 42 through hole 51 Tension fixing device 52 Coupler
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) E04C 5/08 D07B 7/18 B21F 21/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) E04C 5/08 D07B 7/18 B21F 21/00
Claims (7)
の各素線を長手方向の異なる位置でそれぞれ突き合わせ
て撚り線状の連続線材に組み上げ、耐候性PC鋼より線
及び連続繊維補強材の連結部を形成し、該連結部外周
に、樹脂を塗布した補強繊維シートを螺旋状に緊密に巻
き付け、該シート表面の樹脂を加熱冷却して硬化させ、
耐候性PC鋼より線と連続繊維補強材とを連結してなる
ことを特徴とする複合ストランド。1. A weather-resistant PC stranded wire and a continuous fiber reinforcing material are assembled into a stranded continuous wire material by associating each strand of the weather-resistant PC stranded wire and continuous fiber reinforcing material at different positions in the longitudinal direction. Forming a connection portion of, and around the connection portion, a reinforcing fiber sheet coated with a resin is tightly wound in a spiral shape, and the resin on the surface of the sheet is heated and cooled to be cured,
A composite strand comprising a weather resistant PC stranded wire and a continuous fiber reinforcing material connected to each other.
結部外周に微小隙間をもって遊嵌する耐候性チューブを
外嵌し、該チューブ内に樹脂を加圧充填し、耐候性PC
鋼より線と連続繊維補強材とを連結してなることを特徴
とする請求項1記載の複合ストランド。2. Instead of winding the sheet, a weather resistant tube which is loosely fitted around the outer periphery of the connecting portion with a minute gap is externally fitted, and a resin is pressure-filled in the tube to form a weather resistant PC.
The composite strand according to claim 1, wherein the stranded steel wire and the continuous fiber reinforcing material are connected to each other.
強材がそれぞれ7本より線又は19本より線であること
を特徴とする請求項1又は又は2記載の複合ストラン
ド。3. The composite strand according to claim 1, wherein the weather resistant PC steel stranded wire and the continuous fiber reinforcing material are 7 stranded wires or 19 stranded wires, respectively.
をそれぞれ連結部長さ分の撚りを解き、解いた素線をそ
れぞれスペーサの孔に通してスペーサを連結部の始終箇
所に位置させ、耐候性PC鋼より線及び連続繊維補強材
の撚りを解いた素線同士を長手方向に互いに重複させて
並列に配置し、耐候性PC鋼より線及び連続繊維補強材
の連結部を形成し、前記スペーサに外嵌する耐候性チュ
ーブでスペーサ及び連結部外周を覆い、該チューブの内
部に樹脂を充填し、耐候性PC鋼より線と連続繊維補強
材とを連結してなることを特徴とする複合ストランド。4. A weather-resistant PC stranded wire and a continuous fiber reinforcing material are each untwisted for the length of the connecting portion, and the unwound strands are respectively passed through the holes of the spacer to position the spacer at the beginning and end of the connecting portion. The untwisted strands of the weather-resistant PC stranded wire and the continuous fiber reinforcement are arranged in parallel in the longitudinal direction so as to form a connection portion between the weather-resistant PC stranded wire and the continuous fiber reinforcement, It is characterized in that the spacer and the outer periphery of the connecting portion are covered with a weatherproof tube fitted onto the spacer, the inside of the tube is filled with resin, and the weatherproof PC steel strand and the continuous fiber reinforcing material are connected. Composite strand.
ランド3本〜20本を、複合ストランドの連結部の始終
箇所に位置した2枚のスペーサの孔を貫通させて平行配
置し、スペーサに外嵌する内径を有する耐候性チューブ
でスペーサ及び連結部を覆い、覆いの内部に樹脂を充填
して形成してなることを特徴とする複合ケーブル。5. Three to twenty composite strands according to any one of claims 1 to 4 are arranged in parallel by penetrating through holes of two spacers located at the beginning and end positions of the connecting portion of the composite strand, A composite cable formed by covering a spacer and a connecting portion with a weatherproof tube having an inner diameter to be fitted onto the spacer, and filling the inside of the cover with a resin.
ランド又は請求項5に記載の複合ケーブルを緊張材とし
て用い、PC鋼材の部分に緊張定着装置を配設して緊張
することを特徴とする複合ストランド又は複合ケーブル
の使用方法。6. Using the composite strand according to any one of claims 1 to 4 or the composite cable according to claim 5 as a tension member, a tension fixing device is provided in a portion of a PC steel material for tensioning. A method of using the characteristic composite strand or composite cable.
ランド又は請求項5に記載の複合ケーブルを用い、PC
鋼材の部分で、前記複合ストランド同士又は前記複合ケ
ーブル同士の接続を行うことを特徴とする複合ストラン
ド又は複合ケーブルの使用方法。7. A PC using the composite strand according to claim 1 or the composite cable according to claim 5.
A method of using a composite strand or a composite cable, wherein the composite strands or the composite cables are connected to each other in a steel material portion.
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JP2001010048A JP3466155B2 (en) | 2001-01-18 | 2001-01-18 | Composite strand, composite cable and method of using the same |
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Cited By (1)
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CN102966216A (en) * | 2012-12-10 | 2013-03-13 | 常熟建工建设集团有限公司苏州分公司 | Tie piece for building |
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JP2007119933A (en) * | 2005-10-25 | 2007-05-17 | Tokyo Seiko Seni Rope Kk | Method for producing long fiber rope and long fiber rope |
KR100907653B1 (en) | 2009-04-08 | 2009-07-13 | 다이섹(주) | Manufacturing Process for Endress Wire saw |
JP6266881B2 (en) * | 2012-12-21 | 2018-01-24 | 東洋ゴム工業株式会社 | Steel cord for rubber reinforcement and pneumatic tire |
CN110541417A (en) * | 2019-10-08 | 2019-12-06 | 华东交通大学 | Anchor cable of continuous basalt fiber composite reinforcement |
CN112323525B (en) * | 2020-11-16 | 2024-06-28 | 清华大学 | Composite material winding reinforced steel cable and manufacturing method thereof |
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2001
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Cited By (1)
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CN102966216A (en) * | 2012-12-10 | 2013-03-13 | 常熟建工建设集团有限公司苏州分公司 | Tie piece for building |
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