JP2000073287A - Cable for hanging structure - Google Patents
Cable for hanging structureInfo
- Publication number
- JP2000073287A JP2000073287A JP10238895A JP23889598A JP2000073287A JP 2000073287 A JP2000073287 A JP 2000073287A JP 10238895 A JP10238895 A JP 10238895A JP 23889598 A JP23889598 A JP 23889598A JP 2000073287 A JP2000073287 A JP 2000073287A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- strands
- steel wire
- suspension structure
- corrosion resistance
- 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
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/2002—Wires or filaments characterised by their cross-sectional shape
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2011—Wires or filaments characterised by a coating comprising metals
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/306—Aluminium (Al)
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/2025—Environmental resistance avoiding corrosion
Landscapes
- Ropes Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、吊り構造用ケーブ
ルに関する。TECHNICAL FIELD The present invention relates to a cable for a suspension structure.
【０００２】[0002]
【従来の技術】吊橋等に用いられるワイヤ（吊り構造用
ケーブル）は、より線効果による強度の低下が少ないパ
ラレルワイヤ或いはよりピッチの長いワイヤが用いられ
る。2. Description of the Related Art As a wire (cable for a suspension structure) used for a suspension bridge or the like, a parallel wire or a wire having a longer pitch, in which the strength is less reduced by a stranded effect, is used.
【０００３】これらの吊り構造用ケーブルの素線には、
ピアノ線材等の高抗張力線材が用いられ、耐食性を考慮
して各素線に亜鉛メッキが施されている。また工事等の
傷を考慮して亜鉛メッキの上に更に樹脂を被覆したもの
もある。[0003] The strands of these suspension structure cables include:
A high tensile strength wire such as a piano wire is used, and each wire is galvanized in consideration of corrosion resistance. In addition, there is a type in which a resin is further coated on galvanized plating in consideration of scratches during construction and the like.
【０００４】図３は従来の吊り構造用ケーブルの断面図
である。FIG. 3 is a sectional view of a conventional cable for a suspension structure.
【０００５】この吊り構造用ケーブル１は、円形断面形
状の鋼線２の周りに亜鉛３を被覆して断面形状が円形に
なるようにした素線４を複数本束ねたものである。尚、
吊り構造用ケーブル１には耐食性の向上を目的として防
錆ペーストや防食塗装が施されている。[0005] The cable 1 for hanging structure is made by bundling a plurality of strands 4 having a circular cross section by coating zinc 3 around a steel wire 2 having a circular cross section. still,
The suspension structure cable 1 is provided with a rust preventive paste or anticorrosion paint for the purpose of improving corrosion resistance.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、吊り構
造用ケーブルは橋自体を支える線であり、一旦施工した
後は橋の寿命まで交換できない。また、近年大規模な吊
り橋は海上等海洋性雰囲気中に建設されることが多いの
で、吊り構造用ケーブルには高耐食性が要求される。そ
のため、従来技術で述べたように吊り構造用ケーブルの
上から防錆ペーストや防食塗装が施されているが、５０
から１００年と長期間使用されるため、耐食性の改善、
向上が要望されている。However, the cable for the suspension structure is a line for supporting the bridge itself, and cannot be replaced until the life of the bridge once constructed. Further, in recent years, large-scale suspension bridges are often constructed in a marine atmosphere such as at sea, so that cables for suspension structures are required to have high corrosion resistance. Therefore, as described in the related art, a rust-preventive paste or an anti-corrosion coating is applied on the cable for the suspension structure.
Since it is used for as long as 100 years, the corrosion resistance is improved,
Improvement is required.
【０００７】そこで、本発明の目的は、上記課題を解決
し、耐食性に優れた吊り構造用ケーブルを提供すること
にある。Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a cable for a suspension structure having excellent corrosion resistance.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に本発明の吊り構造用ケーブルは、鋼線の周りにアルミ
ニウムを被覆して断面形状が四角形、六角形或いは八角
形になるようにした素線を素線間の隙間が最小となるよ
うに複数本束ねたものである。In order to achieve the above-mentioned object, a cable for a suspension structure according to the present invention has a steel wire coated with aluminum so as to have a square, hexagonal or octagonal cross section. A plurality of strands are bundled such that a gap between the strands is minimized.
【０００９】上記構成に加え本発明の吊り構造用ケーブ
ルは、鋼線に引張強さが１５０〜２５０ｋｇｆ／ｍｍ2
の高抗張力鋼線を用いるのが好ましい。[0009] In addition to the above structure, the cable for a suspension structure of the present invention has a steel wire having a tensile strength of 150 to 250 kgf / mm 2.
It is preferable to use a high tensile strength steel wire.
【００１０】本発明によれば、鋼線の周りにアルミニウ
ムを被覆した素線の断面形状を四角形、六角形或いは八
角形にすることにより、素線を複数本束ねて吊り構造用
ケーブルを形成する際に生じる素線間の隙間が最小にな
り、素線間への水の浸入が防止されて耐食性が向上す
る。According to the present invention, the cross-sectional shape of the wire coated with aluminum around the steel wire is square, hexagonal or octagonal, so that a plurality of the wires are bundled to form a cable for a suspension structure. The gap between the wires generated at that time is minimized, and the infiltration of water between the wires is prevented, and the corrosion resistance is improved.
【００１１】なお、アルミニウムの優れた耐食性につい
ては、架空送電線の分野で実証済である。The excellent corrosion resistance of aluminum has been proven in the field of overhead power transmission lines.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を添付
図面に基づいて詳述する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１３】図１は本発明の吊り構造用ケーブルの一実
施の形態を示す断面図であり、図２は図１に示した吊り
構造用ケーブルに用いられる素線の拡大断面図である。FIG. 1 is a sectional view showing an embodiment of a cable for a suspension structure according to the present invention, and FIG. 2 is an enlarged sectional view of a strand used for the cable for a suspension structure shown in FIG.
【００１４】図１に示す吊り構造用ケーブル１０は、鋼
線１１の周りにアルミニウム１２を被覆して断面形状が
六角形になるようにした素線（図２参照）１３を複数本
束ねたものである。A cable 10 for a hanging structure shown in FIG. 1 is obtained by bundling a plurality of strands (see FIG. 2) 13 of a steel wire 11 coated with aluminum 12 so as to have a hexagonal cross section. It is.
【００１５】素線１３の断面形状を六角形にすることに
より、複数本の素線１３を束ねて吊り構造用ケーブル１
０を形成する際に生じる素線１３間の隙間がなくなり、
素線１３間への水の浸入が防止されて耐食性に優れた吊
り構造用ケーブル１０の提供を実現することができる。By forming the cross-sectional shape of the wires 13 into a hexagon, the plurality of wires 13 are bundled to form the suspension structure cable 1.
There is no gap between the wires 13 generated when forming 0,
It is possible to prevent the intrusion of water between the strands 13 and to provide the suspension structure cable 10 having excellent corrosion resistance.
【００１６】鋼線１１の被覆に用いるアルミニウム１２
は高純度のものほど耐食性に優れる。そこで、工業的に
量産が可能なアルミニウム１２として純アルミニウム
（純度９９．５％以上）を用いるのが好ましい。また、
鋼線１１には引張強さが１５０〜２５０ｋｇｆ／ｍｍ2
の高抗張力鋼線を用いるのが好ましい。Aluminum 12 used for coating steel wire 11
The higher the purity, the better the corrosion resistance. Therefore, it is preferable to use pure aluminum (purity of 99.5% or more) as the aluminum 12 that can be mass-produced industrially. Also,
The steel wire 11 has a tensile strength of 150 to 250 kgf / mm 2.
It is preferable to use a high tensile strength steel wire.
【００１７】以上において本発明によれば、鋼線の周り
に耐食性に優れたアルミニウムを被覆したことにより、
亜鉛メッキ鋼線（樹脂被覆を含む）より良好な耐蝕性を
有する。鋼線の周りにアルミニウムを被覆した素線の断
面形状を六角形になるようにしたことにより、素線を束
ねる際に隙間が生じにくくなり素線間への水分の浸入が
防止されて耐食性が向上する。As described above, according to the present invention, the steel wire is coated with aluminum having excellent corrosion resistance,
Has better corrosion resistance than galvanized steel wire (including resin coating). The hexagonal cross-section of the steel wire coated with aluminum around the steel wire makes it difficult for gaps to occur when the wires are bundled, preventing water from entering between the wires and improving corrosion resistance. improves.
【００１８】尚、本実施の形態では、素線の数が３７本
の場合で説明したが、これに限定されるものではない。
また、素線の断面形状は六角形に限定されず、四角形や
八角形等束ねたときに隙間が生じにくい多角形であって
もよい。In this embodiment, the case where the number of strands is 37 has been described, but the present invention is not limited to this.
The cross-sectional shape of the element wire is not limited to a hexagon, and may be a polygon such as a quadrangle or an octagon, in which a gap is hardly generated when bundled.
【００１９】[0019]
【発明の効果】以上要するに本発明によれば、次のよう
な優れた効果を発揮する。In summary, according to the present invention, the following excellent effects are exhibited.
【００２０】鋼線の周りにアルミニウムを被覆して断面
形状が四角形、六角形或いは八角形になるようにした素
線を素線間の隙間が最小となるように複数本束ねること
により、耐食性に優れた吊り構造用ケーブルの提供を実
現できる。A plurality of strands, each having a rectangular, hexagonal or octagonal cross-section formed by coating aluminum around a steel wire, are bundled so that the gap between the strands is minimized. An excellent suspension structure cable can be provided.
【図１】本発明の吊り構造用ケーブルの一実施の形態を
示す断面図である。FIG. 1 is a sectional view showing an embodiment of a cable for a hanging structure according to the present invention.
【図２】図１に示した吊り構造用ケーブルに用いられる
素線の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a strand used in the cable for a suspension structure shown in FIG.
【図３】従来の吊り構造用ケーブルの断面図である。FIG. 3 is a sectional view of a conventional cable for hanging structure.
１０ 吊り構造用ケーブル １１ 鋼線 １２ アルミニウム １３ 素線 DESCRIPTION OF SYMBOLS 10 Cable for suspension structure 11 Steel wire 12 Aluminum 13 Element wire
───────────────────────────────────────────────────── フロントページの続き (72)発明者 島田 典幸 茨城県日立市川尻町４丁目10番１号 日立 電線株式会社豊浦工場内 Ｆターム(参考） 3B153 AA22 AA43 BB07 BB15 CC52 CC54 FF03 GG01 GG09 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Noriyuki Shimada, Inventor 4-10-1, Kawajiri-cho, Hitachi City, Ibaraki Prefecture F-term in Toyoura Plant, Hitachi Cable, Ltd. (Reference) 3B153 AA22 AA43 BB07 BB15 CC52 CC54 FF03 GG01 GG09
Claims (2)
面形状が四角形、六角形或いは八角形になるようにした
素線を素線間の隙間が最小となるように複数本束ねたこ
とを特徴とする吊り構造用ケーブル。1. A method in which a plurality of strands each having a rectangular, hexagonal, or octagonal cross-section formed by coating aluminum around a steel wire are bundled such that a gap between the strands is minimized. Characteristic suspension structure cable.
ｇｆ／ｍｍ2 の高抗張力鋼線を用いた請求項１に記載の
吊り構造用ケーブル。2. The steel wire has a tensile strength of 150 to 250 k.
The cable for a suspension structure according to claim 1, wherein a high tensile strength steel wire of gf / mm 2 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10238895A JP2000073287A (en) | 1998-08-25 | 1998-08-25 | Cable for hanging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10238895A JP2000073287A (en) | 1998-08-25 | 1998-08-25 | Cable for hanging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000073287A true JP2000073287A (en) | 2000-03-07 |
Family
ID=17036873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10238895A Pending JP2000073287A (en) | 1998-08-25 | 1998-08-25 | Cable for hanging structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000073287A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803940A (en) * | 2016-04-29 | 2016-07-27 | 重庆万桥交通科技发展有限公司 | Novel main cable strand for suspension bridge |
-
1998
- 1998-08-25 JP JP10238895A patent/JP2000073287A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803940A (en) * | 2016-04-29 | 2016-07-27 | 重庆万桥交通科技发展有限公司 | Novel main cable strand for suspension bridge |
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