JP3472746B2 - Tendon cable - Google Patents
Tendon cableInfo
- Publication number
- JP3472746B2 JP3472746B2 JP2000129747A JP2000129747A JP3472746B2 JP 3472746 B2 JP3472746 B2 JP 3472746B2 JP 2000129747 A JP2000129747 A JP 2000129747A JP 2000129747 A JP2000129747 A JP 2000129747A JP 3472746 B2 JP3472746 B2 JP 3472746B2
- Authority
- JP
- Japan
- Prior art keywords
- tension
- coating
- steel
- wire
- tension cable
- 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
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
-
- 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
- Reinforcement Elements For Buildings (AREA)
- Ropes Or Cables (AREA)
- Wire Processing (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【発明の属する技術分野】本発明は緊張材および緊張ケ
ーブルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tendon and a tension cable.
【0002】[0002]
【従来の技術】従来、プレストレストコンクリート構造
物、鋼構造物および斜張橋の緊張ケーブルには、図7に
示すように、PC鋼撚線11を束ねたものをシースまた
はコンクリートの孔に挿入して使用している。このPC
鋼撚線11は、同図の(2)に示すように、芯線12と
側線13の各外周が合成樹脂粉末塗料の被膜14で覆わ
れて形成されている。2. Description of the Related Art Conventionally, as a tension cable for a prestressed concrete structure, a steel structure and a cable-stayed bridge, as shown in FIG. 7, a bundle of PC steel twisted wires 11 is inserted into a hole of a sheath or concrete. I am using it. This PC
As shown in (2) of the figure, the steel stranded wire 11 is formed by covering the outer circumferences of the core wire 12 and the side wire 13 with a coating film 14 of synthetic resin powder paint.
【0003】[0003]
【発明が解決しようとする課題】しかし、上記のような
PC鋼撚線を束ねた緊張材は所定の緊張力を付与して緊
張した場合、PC鋼撚線同士が擦れて被膜が削れてしま
うという問題があった。特に、緊張材が曲がった状態で
配線されている場合や、その曲げ角度が大きい場合は曲
がった部分の内側に大きな応力が働くため被膜の削れが
激しかった。However, when the tension material formed by bundling the PC steel twisted wires as described above is applied with a predetermined tension force and is tense, the PC steel twisted wires are rubbed with each other and the coating is scraped off. There was a problem. In particular, when the tension material is wired in a bent state or when the bending angle is large, a large stress acts on the inside of the bent portion, so that the coating is severely scraped.
【0004】本発明は上記のような問題に鑑みてなされ
たものであり、その目的は、PC鋼撚線の被膜の削れを
防ぐ緊張材を提供することである。The present invention has been made in view of the above problems, and an object of the present invention is to provide a tension member which prevents abrasion of a coating film of PC steel stranded wire.
【0005】[0005]
【課題を解決するための手段】以上の課題を解決するた
めの手段は、請求項1の発明の緊張材ケーブルが、 芯線
と側線の各外周が被膜で覆われたPC鋼撚線の所定箇所
の外周に、アラミド繊維製または炭素繊維製の補強体が
設けられてなる緊張材を複数本束ねて形成したことを特
徴とし、請求項2の発明の緊張材ケーブルが、請求項1
において、補強体は曲げ角度の大きい箇所に設けられた
ことを特徴とし、請求項3の発明の緊張材ケーブルが、
請求項1または2において、補強体は適宜幅のものが適
宜間隔ごとに設けられたことを特徴とし、請求項4の発
明の緊張材ケーブルが、請求項1〜3のいずれかにおい
て、補強体は適宜幅のものがスパイラル状に設けられた
ことを特徴とする。 Means for solving the above object, according to an aspect of the tension support cables of the invention of claim 1, the core wire
Predetermined location of PC steel stranded wire where each outer circumference of the and side wires is covered with a coating
A aramid fiber or carbon fiber reinforcement is
It is special that it is formed by bundling multiple tension materials that are provided.
As a characteristic, the tendon cable of the invention of claim 2 is defined by claim 1.
In, the reinforcement was installed at a location with a large bending angle.
According to a third aspect of the invention, the tendon cable of the invention according to claim 3
In Claim 1 or 2, it is suitable that the reinforcing body has an appropriate width.
The invention according to claim 4 is characterized in that it is provided at every interval.
The tension cable of Ming has the smell according to any one of claims 1 to 3.
The reinforcing body was of appropriate width and was provided in a spiral shape.
It is characterized by
【0006】PC鋼撚線を束ねると補強体により、PC
鋼撚線間に僅かな間隔が形成されるため、被膜が擦れて
削れることがない。またアラミド繊維製または炭素繊維
製の補強体は、グラウトとの付着力および引張強度も大
きいため被膜を十分に保護することができる。アラミド
繊維製または炭素繊維製の補強体は、PC鋼撚線に薄く
貼り付けることができるので、シースやコンクリートの
孔に挿入しやすくなる。緊張材が曲がった状態で配線さ
れている場合や、その曲げ角度が大きい場合であって
も、補強体によって被膜の擦れによる削れを防ぐことが
できる。また補強体を適宜間隔ごと、またはスパイラル
状に設けたことにより、PC鋼撚線間に全長にわたって
僅かな間隔ができるので、PC鋼撚線の被膜が全長にわ
たって保護される。PC steel strands are bundled together by a reinforcement body
Since a slight gap is formed between the steel strands, the coating is not scraped and scraped. Further, since the reinforcing body made of aramid fiber or carbon fiber has a large adhesive force with respect to grout and a large tensile strength, the coating film can be sufficiently protected. Since the reinforcing body made of aramid fiber or carbon fiber can be thinly attached to the PC steel twisted wire, it can be easily inserted into the hole of the sheath or the concrete. Even when the tension member is wired in a bent state or when the bending angle is large, the reinforcing body can prevent the coating film from being scraped due to rubbing. Further, by providing the reinforcing bodies at appropriate intervals or in a spiral shape, a slight gap can be formed between the PC steel twisted wires over the entire length, so that the coating film of the PC steel twisted wires is protected over the entire length.
【0007】[0007]
【発明の実施の形態】以下、本発明の緊張材および緊張
ケーブルの実施の形態を図面に基づいて詳細に説明す
る。はじめに緊張材について説明し、その後に緊張ケー
ブルについて説明する。前記緊張材は第1から第4まで
の実施の形態があり、各実施の形態において同じ構成は
同じ符号で説明し、異なる構成は異なった符号を付して
説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a tension member and a tension cable of the present invention will be described below in detail with reference to the drawings. First, the tension material will be described, and then the tension cable will be described. There are first to fourth embodiments of the tension member. In each of the embodiments, the same components will be described with the same reference numerals, and different components will be described with different reference numerals.
【0008】図1は第1の実施の形態の緊張材1を示
し、該緊張材1はPC鋼撚線2の中央部の外周、すなわ
ち曲げ角度が一番大きな箇所にアラミド繊維製または炭
素繊維製の補強体3が接着剤で貼り付けられて構成され
ている。PC鋼撚線2は、中心部の芯線4の外周に複数
の側線5が撚った状態で巻き付けられ、これら芯線4と
側線5との外周に合成樹脂粉末塗料を溶融密着させた被
膜6が施され、この被膜6よって防錆性能が高められて
いる。前記補強体3は、曲げ角度の大きな箇所の被膜6
を保護するとともに、スペーサーとしての働きもするよ
うになっている。前記補強体3はアラミド繊維シートま
たは炭素繊維シートを所定幅に切断して接着する場合
や、アラミド繊維製または炭素繊維製の筒体を所定幅に
切断して挿入・接着する場合がある。FIG. 1 shows a tension member 1 according to a first embodiment. The tension member 1 is made of aramid fiber or carbon fiber at the outer periphery of the central portion of PC steel stranded wire 2, that is, at the portion where the bending angle is the largest. The reinforcing body 3 made of a material is attached by an adhesive. The PC steel stranded wire 2 is wound around the outer circumference of the core wire 4 at the center in a state in which a plurality of side wires 5 are twisted, and a coating 6 formed by melting and adhering a synthetic resin powder coating on the outer circumferences of the core wire 4 and the side wires The coating 6 enhances the rust prevention performance. The reinforcing body 3 has a coating 6 at a portion with a large bending angle.
In addition to protecting, it also acts as a spacer. The reinforcing body 3 may be formed by cutting an aramid fiber sheet or a carbon fiber sheet into a predetermined width and adhering it, or by cutting an aramid fiber or carbon fiber tube into a predetermined width and inserting and adhering it.
【0009】図2は第2の実施の形態の緊張材7を示
し、PC鋼撚線2のほぼ全長にわたって補強体3を貼り
付けたものであり、これ以外は第1の実施の形態の緊張
材1と同じ構成である。これは緊張材7全体が曲がった
状態で配線される場合に使用するものであり、曲がった
箇所の被膜6を保護するものである。FIG. 2 shows the tension member 7 of the second embodiment, in which the reinforcing body 3 is attached over substantially the entire length of the PC steel twisted wire 2, except for the tension member of the first embodiment. It has the same structure as the material 1. This is used when the entire tension member 7 is wired in a bent state, and protects the coating film 6 in the bent portion.
【0010】図3は第3の実施の形態の緊張材8を示
し、PC鋼撚線2のほぼ全長にわたって適宜幅の補強体
3を適宜間隔ごとに貼り付けたものであり、これ以外は
第1の実施の形態の緊張材1と同じ構成である。これは
緊張材8全体にわたって被膜6が保護されるという効果
を奏することができる。FIG. 3 shows a tension member 8 of a third embodiment, in which reinforcing members 3 of appropriate width are attached at appropriate intervals over almost the entire length of PC steel stranded wire 2, and other than this, It has the same configuration as the tension member 1 of the first embodiment. This can have the effect that the coating 6 is protected over the entire tendon 8.
【0011】図4は第4の実施の形態の緊張材9を示
し、PC鋼撚線2のほぼ全長にわたって適宜幅の補強体
3をスパイラル状に貼り付けたたものであり、これ以外
は第1の実施の形態の緊張材1と同じ構成である。これ
も第3の実施の形態の緊張材8と同じ効果を奏すること
ができる。FIG. 4 shows a tension member 9 of a fourth embodiment, in which a reinforcing body 3 having an appropriate width is attached in a spiral shape over substantially the entire length of the PC steel twisted wire 2, and other than this, It has the same configuration as the tension member 1 of the first embodiment. This can also achieve the same effect as the tension member 8 of the third embodiment.
【0012】また図5は緊張ケーブル10の実施の形態
を示し、第1の実施の形態の緊張材1を7本束ねて結束
具(図示せず)で結束したものである。これは図6に示
すように、補強体3がスペーサの役割をしてPC鋼撚線
2間に僅かな間隔が形成されるため、各PC鋼撚線2の
被膜6が擦れて削れるということがなくなる。特に、図
示するように、曲げ角度の大きな箇所に補強体3を巻い
た緊張材1を束ねると、その部分の被膜6が保護される
という効果を奏することができるようになる。また、各
補強体3はアラミド繊維または炭素繊維で薄く形成され
ているため、シースやコンクリートの孔内に挿入しやす
くなり、該コンクリートの孔内に充填されたグラウトと
の接着強度も大きくなる。FIG. 5 shows an embodiment of the tension cable 10, in which seven tension members 1 of the first embodiment are bundled and bound by a binding tool (not shown). As shown in FIG. 6, the reinforcing body 3 acts as a spacer to form a small gap between the PC steel twisted wires 2, so that the coating 6 of each PC steel twisted wire 2 is rubbed and scraped. Disappears. In particular, as shown in the drawing, when the tension member 1 wound with the reinforcing body 3 is bundled at a portion having a large bending angle, the effect of protecting the coating film 6 at that portion can be obtained. Further, since each reinforcing member 3 is formed thinly with aramid fiber or carbon fiber, it becomes easy to insert it into the hole of the sheath or the concrete, and the adhesive strength with the grout filled in the hole of the concrete also increases.
【0013】この緊張ケーブル10は、第2の実施の形
態の緊張材7同士(図2)、第3の実施の形態の緊張材
8同士(図3)、第4の実施の形態の緊張材9同士(図
4)を束ねて形成することや、第1〜第4の実施の形態
の緊張材1、7、8、9を任意に組み合わせて形成する
こともできる。この場合、第3および第4の実施の形態
の緊張材8、9同士を束ねた緊張ケーブルはPC鋼撚線
2全体の被膜6を保護することができる。This tension cable 10 includes tension members 7 of the second embodiment (FIG. 2), tension members 8 of the third embodiment (FIG. 3), and tension members of the fourth embodiment. 9 (FIG. 4) may be bundled and formed, or the tension members 1, 7, 8, and 9 of the first to fourth embodiments may be arbitrarily combined and formed. In this case, the tension cable in which the tension members 8 and 9 of the third and fourth embodiments are bundled can protect the coating 6 of the entire PC steel twisted wire 2.
【0014】[0014]
【発明の効果】PC鋼撚線を束ねると補強体により、P
C鋼撚線同士に僅かな間隔が形成されるため、被膜が擦
れて削れることがない。[Effects of the Invention] When the PC steel stranded wire is bundled, P
Since a slight gap is formed between the C steel stranded wires, the coating is not scraped and scraped.
【0015】アラミド繊維製または炭素繊維製の補強体
は、グラウトとの付着力および引張強度も大きいため被
膜を十分に保護することができる。Since the reinforcement made of aramid fiber or carbon fiber has a large adhesion to the grout and a large tensile strength, the coating can be sufficiently protected.
【0016】アラミド繊維製または炭素繊維製の補強体
は、PC鋼撚線に薄く貼り付けることができるので、シ
ースやコンクリートの孔に挿入しやすくなる。Since the reinforcement made of aramid fiber or carbon fiber can be thinly attached to the PC steel twisted wire, it can be easily inserted into the sheath or the hole of concrete.
【0017】緊張材が曲がった状態で配線されている場
合や、その曲げ角度が大きい場合であっても、補強体に
よって被膜の擦れによる削れを防ぐことができる。Even if the tension members are wired in a bent state or have a large bending angle, the reinforcing member can prevent the coating film from being scraped due to rubbing.
【0018】補強体を適宜間隔ごと、またはスパイラル
状に設けたことにより、PC鋼撚線間に全長にわたって
僅かな間隔ができるので、PC鋼撚線の被膜が全長にわ
たって保護される。By providing the reinforcing bodies at appropriate intervals or in a spiral shape, a slight gap can be provided between the PC steel twisted wires over the entire length, so that the coating film of the PC steel twisted wires is protected over the entire length.
【図1】(1)は第1の実施の形態の緊張材の正面図、
(2)は(1)のA−A線断面図である。FIG. 1A is a front view of a tension member according to a first embodiment,
(2) is the sectional view on the AA line of (1).
【図2】第2の実施の形態の緊張材の正面図である。FIG. 2 is a front view of a tension member according to a second embodiment.
【図3】第3の実施の形態の緊張材の正面図である。FIG. 3 is a front view of a tension member according to a third embodiment.
【図4】第4の実施の形態の緊張材の正面図である。FIG. 4 is a front view of a tension member according to a fourth embodiment.
【図5】緊張ケーブルの実施の形態の正面図である。FIG. 5 is a front view of an embodiment of a tension cable.
【図6】図5のB−B線断面図である。6 is a sectional view taken along line BB of FIG.
【図7】従来の緊張ケーブルを示し、(1)は緊張ケー
ブルの正面図、(2)は(1)のC−C線断面図であ
る。FIG. 7 shows a conventional tension cable, (1) is a front view of the tension cable, and (2) is a sectional view taken along line CC of (1).
1、7、8、9 緊張材 2、11 PC鋼より線 3 補強体 4、12 芯線 5、13 側線 6、14 被膜 10 緊張ケーブル 1, 7, 8, 9 Tension material 2,11 PC steel stranded wire 3 Reinforcement 4, 12 core wire 5,13 lateral line 6,14 coating 10 tension cable
───────────────────────────────────────────────────── 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 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) E04C 5/08
Claims (4)
C鋼撚線の所定箇所の外周に、アラミド繊維製または炭
素繊維製の補強体が設けられてなる緊張材を複数本束ね
て形成したことを特徴とする緊張材ケーブル。 1. A P having a core wire and a side wire, each of which has an outer periphery covered with a film.
Made of aramid fiber or charcoal around the predetermined part of C steel stranded wire
Bundling a plurality of tension materials with reinforcing elements made of fiber
Tension cable characterized by being formed by.
れたことを特徴とする請求項1に記載の緊張材ケーブThe tendon cave according to claim 1, characterized in that
ル。Le.
設けられたことを特徴とする請求項1または2に記載のIt is provided, The claim 1 or 2 characterized by the above-mentioned.
緊張材ケーブル。Tension cable.
設けられたことを特徴とする請求項1〜3のいずれかにIt is provided, It is provided in any one of Claims 1-3.
記載の緊張材ケーブル。Tension cable described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000129747A JP3472746B2 (en) | 2000-04-28 | 2000-04-28 | Tendon cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000129747A JP3472746B2 (en) | 2000-04-28 | 2000-04-28 | Tendon cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001311259A JP2001311259A (en) | 2001-11-09 |
JP3472746B2 true JP3472746B2 (en) | 2003-12-02 |
Family
ID=18638971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000129747A Expired - Fee Related JP3472746B2 (en) | 2000-04-28 | 2000-04-28 | Tendon cable |
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Country | Link |
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JP (1) | JP3472746B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1396321A4 (en) | 2001-05-24 | 2006-04-05 | Japan Science & Tech Agency | Method of manufacturing prestressed concrete |
KR100443565B1 (en) * | 2002-01-24 | 2004-08-09 | 고려제강 주식회사 | Wire rope core made of fibre and spring steel |
FR2873721A1 (en) * | 2004-08-02 | 2006-02-03 | Michelin Soc Tech | LAYERED CABLE FOR PNEUMATIC TOP REINFORCEMENT |
JP4843383B2 (en) * | 2006-06-02 | 2011-12-21 | 関西ティー・エル・オー株式会社 | Composite PC steel and composite PC steel stranded wire |
JP5663492B2 (en) * | 2008-12-18 | 2015-02-04 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニムN V Bekaert Societe Anonyme | Cement base reinforcement cord |
-
2000
- 2000-04-28 JP JP2000129747A patent/JP3472746B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2001311259A (en) | 2001-11-09 |
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