JPH0359185A - Production of grooved suspension-structured bridge cable - Google Patents
Production of grooved suspension-structured bridge cableInfo
- Publication number
- JPH0359185A JPH0359185A JP19044189A JP19044189A JPH0359185A JP H0359185 A JPH0359185 A JP H0359185A JP 19044189 A JP19044189 A JP 19044189A JP 19044189 A JP19044189 A JP 19044189A JP H0359185 A JPH0359185 A JP H0359185A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- polyethylene
- cutting
- coated
- production
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 27
- -1 polyethylene Polymers 0.000 claims abstract description 27
- 229920000573 polyethylene Polymers 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 abstract description 7
- 239000011247 coating layer Substances 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は制振対策付斜張橋ケーブルの製造法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a cable-stayed bridge cable with vibration damping measures.
（従来技術）
斜張橋ケーブルの空力不安定振動を防止するのに、ケー
ブルの表面を被覆しているポリエチレン管の表面にスト
ライプ状に溝をつけると、これが極めて有効であること
がしられている。(Prior art) It has been found that forming striped grooves on the surface of the polyethylene pipe that covers the surface of the cable is extremely effective in preventing unstable aerodynamic vibrations in cable-stayed bridge cables. There is.
第４図は従来しられているポリエチレン被覆斜張橋ケー
ブルの製造方法を示す図である。ケーブル素線ａは多数
本が撚り線装置Ｃで一定の径に撚り集められたのち、ポ
リエチレン被覆装置ｉｄによって一定厚さのポリエチレ
ンの被覆層すが形成される。しかし、このようにポリエ
チレンで被覆された斜張橋ケーブルの製造工程において
、前記溝をつけることは未だ開示されていない。FIG. 4 is a diagram showing a conventional method of manufacturing a polyethylene-covered cable-stayed bridge cable. After a large number of cable strands a are twisted to a constant diameter in a twisting device C, a polyethylene coating layer of a constant thickness is formed in a polyethylene coating device id. However, in the manufacturing process of cable-stayed bridge cables coated with polyethylene in this manner, the provision of the grooves has not yet been disclosed.
（発明により解決しようとする課題）
本発明はポリエチレン層で被覆された斜張橋ケーブルの
製造工程でこの軸方向のストライプ状溝をつけた斜張橋
ケーブルの製造方法を提供することを目的とする。(Problems to be Solved by the Invention) An object of the present invention is to provide a method for manufacturing a cable-stayed bridge cable in which striped grooves in the axial direction are formed in the manufacturing process of a cable-stayed bridge cable coated with a polyethylene layer. do.
（発明による課題の解決手段） 撚り線装置によるケーブル素線の撚り工程と。(Means for solving problems through invention) The process of twisting cable bare wires using a twisting device.
該工程で撚られた撚り線の外周にポリエチレン被覆する
ポリエチレン被覆工程と、ポリエチレン被覆工程に続く
カッティング金型を備えたポリエチレン層への溝切削工
程とからなる。The process consists of a polyethylene coating process in which the outer periphery of the strands twisted in this process is coated with polyethylene, and a groove cutting process in the polyethylene layer using a cutting die following the polyethylene coating process.
（作用）
ポリエチレン被覆装置に続いて、カッティング金型を備
えた溝切削工程で振動防止用の溝が連続的に加工され、
制振対策を施した斜張橋が連続的に製造される。(Function) Following the polyethylene coating device, vibration prevention grooves are continuously machined in a groove cutting process equipped with a cutting mold.
Cable-stayed bridges with vibration damping measures are manufactured continuously.
（実施例）
第１図で説明する。ケーブル素線ａは撚り線装置Ｃで撚
り集められたのち、ポリエチレン被覆装置ｄによってポ
リエチレン層すが形成される。ここまでは第４図の従来
と同様である。(Example) This will be explained with reference to FIG. After the cable strands a are twisted together in a twisting device C, a polyethylene layer is formed in a polyethylene coating device d. The process up to this point is the same as the conventional one shown in FIG.
さて、本発明はポリエチレンを被覆させる工程の最終部
に配置されたカッティング金型ｅにより、ポリエチレン
管表面にカッティング溝ｆをケーブルの全周面にわたり
その長さ方向に切削する（第２図、第３図）。Now, in the present invention, cutting grooves f are cut on the surface of the polyethylene pipe in the length direction over the entire circumference of the cable using a cutting mold e placed at the final stage of the polyethylene coating process (Fig. 2, Figure 3).
以上の構成であって、ケーブル素線ａにポリエチレン層
すを被覆した後、ポリエチレン被覆ケーブルはカッティ
ング金型ｅに導入されろ。With the above configuration, after the cable wire a is coated with a polyethylene layer, the polyethylene coated cable is introduced into the cutting mold e.
金型ｅはケーブルの表面に製造工程の最終段階でＶ溝加
工をする。Mold e forms a V-groove on the surface of the cable at the final stage of the manufacturing process.
■溝加工されたポリエチレン層付ケーブルはドラム（図
示しない）に巻取られ、これで製造は完了する。■The grooved polyethylene layered cable is wound onto a drum (not shown), and the production is completed.
尚、実施例ではカッティング溝ｆの断面を７字状とした
が、断面Ｕ字状とすることも勿論可能であり、Ｕ字状と
することで応力の集中を緩和することができる。In the embodiment, the cutting groove f has a 7-shaped cross section, but it is of course possible to have a U-shaped cross section, and by forming the U-shape, stress concentration can be alleviated.
（効果）
空力制振対策として効果的なポリエチレン層の表面溝の
加工をケーブルの製造工程の中で処理することが出来る
ようになった。したがって、制振対策付きの斜張橋ケー
ブルを一貫生産で効率的に生産できるのでコスト的に極
めて有利となった。(Effects) It has become possible to process surface grooves in the polyethylene layer, which is effective as an aerodynamic damping measure, during the cable manufacturing process. Therefore, cable-stayed bridge cables with vibration damping measures can be efficiently produced in an integrated production system, which is extremely advantageous in terms of cost.
第１図は本発明製造方法の説明図。
第２図は本発明方法によって製造された斜張橋ケーブル
の斜視図。
第３図は第２図のｍ矢視図。
第４図は従来型斜張橋ケーブルの製造方法の説明図。
第５図は第４図のＶ−Ｖ断面図。
第６図は同じ＜ Ｖｌ−Ｖｌ断面図。
図において；
ａ ケーブル素線 ｂ
Ｃ撚り線装置
ｄ ポリエチレン被覆装置
ｅ カッティング金型
ｆ カッティング溝
ポリエチレン層
以上FIG. 1 is an explanatory diagram of the manufacturing method of the present invention. FIG. 2 is a perspective view of a cable-stayed bridge cable manufactured by the method of the present invention. FIG. 3 is a view taken along arrow m in FIG. FIG. 4 is an explanatory diagram of a method of manufacturing a conventional cable-stayed bridge cable. FIG. 5 is a sectional view taken along the line V-V in FIG. 4. FIG. 6 is the same <Vl-Vl sectional view. In the figure: a Cable wire b C stranding device d Polyethylene coating device e Cutting mold f Cutting groove polyethylene layer or more
Claims (1)
撚られた撚り線の外周にポリエチレン被覆するポリエチ
レン被覆工程と、該ポリエチレン被覆工程に続くカッテ
ィング金型を備えたポリエチレン層への溝切削工程とか
らなることを特徴とする溝付斜張橋ケーブルの製造法。A process of twisting cable bare wires using a twisting device, a polyethylene coating process of coating the outer periphery of the twisted wire with polyethylene, and a process of cutting grooves in the polyethylene layer using a cutting mold following the polyethylene coating process. A method for manufacturing a grooved cable-stayed bridge cable, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19044189A JPH0359185A (en) | 1989-07-25 | 1989-07-25 | Production of grooved suspension-structured bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19044189A JPH0359185A (en) | 1989-07-25 | 1989-07-25 | Production of grooved suspension-structured bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0359185A true JPH0359185A (en) | 1991-03-14 |
Family
ID=16258187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19044189A Pending JPH0359185A (en) | 1989-07-25 | 1989-07-25 | Production of grooved suspension-structured bridge cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0359185A (en) |
-
1989
- 1989-07-25 JP JP19044189A patent/JPH0359185A/en active Pending
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