JPS59173390A - Corrosion-proof coating of cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

This invention is a suspension bridge, 118 feet, 1 green root, and 41 cable-stayed bridges! This invention relates to an improvement in the method of applying an anti-corrosion coating to the material used. The above-mentioned cable is usually protected by covering its outer peripheral surface with a 1111-shaped anti-corrosion coating, but if the above-mentioned coating has been removed in advance into a couple, it can be reeled. It is extremely inconvenient for storage, etc. (1) Conventionally, scaffolding was assembled in advance at predetermined intervals along the cable to be erected.
After installing a sheathing body 1 in the shape of 1; (In these Ij methods, it is necessary to provide a scaffold for attaching the covering to the scaffold.) Particularly in the case of long couples, there was a disadvantage that scaffolding was needed and the construction cost 1 was more expensive and the construction period was longer.Therefore, in order to eliminate this disadvantage, the construction Form a cylindrical covering with a length of d3 at one end and a constant length of 1 < After that, a strong sheath is formed on the outer periphery of the cable in a similar way to the above-mentioned sheath and moved, and this operation is repeated one after another.
Therefore, a method can be considered in which each covering body covers approximately the entire length of the 9-pull. However, when using this method, a unit-length covering is formed by joining a pair of half-tube-shaped pieces, and then this covering and the next covering are roughly connected by 'L7. When joining and connecting the ends of the A5 and A5, connecting fittings, etc. for connecting each covering are required.
It's a hassle. Moreover, problems remain, such as the appearance of a lump-like connecting portion for each unit length, which is aesthetically undesirable. In view of these circumstances, the present invention makes it possible to remove a sheath over approximately the entire length of a cable for a cable erected on site without requiring scaffolding.
, shorten the construction period and reduce the cost of construction.
The purpose of the present invention is to provide a method for covering a cable with protection against rust, which can particularly simplify the work of forming the covering and improve the appearance. . In other words, the present invention repeats the work of forming a covering part surrounding the cable at one end of the installed cable, and the work of moving this covering part to the other end of the cable by a certain length. As a result, the sheathing parts are successively added in the direction of the cable's thickness to form a single sheath covering the entire length of the cable.

[Many pieces are fitted from both sides! 1' division 1; forming a covering part by 11-shaped division j1,
At the same time, hang the base divided pieces one by one in the radial direction at a predetermined position irl''7 in the length direction of the adjacent divided pieces. A continuous cylindrical covering is formed by joining at corresponding points on the side parts along the length direction with respect to 1 (previous division on the side). Hereinafter, the embodiments of the present invention will be described with reference to FIG.
j2! ll'l J le. FIG. 1 shows a part of a cable-stayed bridge 1, in which a group 2 made of a larger number of steel wires is connected between the two ends of the moss 10 and the bridge girder 11.
has been erected. The above (n digit 11 odor) (a coating γ11X3 is partially formed on the outer periphery of the upper end of the cuuffle 2,
Next, the formed sheathing part 3 is moved along the cable 2 over a certain length by an E-brake 13 which is hooked onto a slide 12 provided at the upper end of the tower 10. By repeating this operation, a sheath covering the cable 2 is formed. In this case, plastic such as polyethylene or copper is added. , Alminilla 1\, Sunres, etc. to a large number of half-11 eyes: 1-shaped division 'l I'''1' , :3
0, 30'..., 31 (to form a covering fA 3, increase the number of connections, or -), and set the relative radial direction (J
Hang the adjoining divided piece at a predetermined lengthwise position. This method is explained in detail in Figure 2 by sequentially joining the divided pieces in the C state. :(:For forming a part - to make a bow, a division J-? 30 of a predetermined thickness and a division piece 31 of approximately 1' length are placed over the goople from both sides. 1. Then, both divisions 30 Align the .31 with the 1.1 end fill side (repare the end C-1 in the horizontal direction).
In the state where the side is facing 1, the side along the direction of both sides) 2
Connect the corresponding parts of the two parts with rivets 1 to 32... or (. , put the kite trumpet tube 33, which has been formed into a split shape in advance, over the goople 2, and attach the above-mentioned two halves to this trumpet tube 33) 730.31
Connect the upper end of the string. Next, the joined two divided pieces 30.3'l are moved upward by a certain length by the L]-b 13 as shown by the arrow. After moving the stiffness, on the other hand (艮いh)
A state in which the divided piece 30 of , and another divided piece 30' are followed by the divided piece s' 31 of how to use (know) 30 and 30' face each other in a state shifted in the length direction, and in this state, the corresponding covering sides of both 622 parts are joined and fixed with a pen (-32... etc.). Similarly, the previously joined b)i
! , 'l J"l' 30 J: or 30', add a new divided piece 30' or 30 (!-Repeat the process of joining. Then, 'l J"l' 30 J: or 30' In particular, the increased length (move upward 1!, or squeeze the two divided pieces 30, 30' (to avoid joining) While moving the divided pieces a constant distance (up to), we will add the divided pieces one by one on the lower end side of the cable 2, increasing the distance by 1 degree. The divided pieces 30 and 30' that cover each other in the (diameter: j) direction are joined together, and the adjacent divided pieces ji 30
. 30 (or 30', 30') comrades also attached these to the split piece 30' (also L; L 30).
connected via. Therefore, there is no need for a connecting fitting for connecting in the length direction, and the connecting work is done in 1; 11 minutes. However, when the longitudinally adjacent split parts are brought into contact with each other, in order to prevent water from entering through the one part where they meet, the blade surface is filled with silicone 11 or both sides. Wrap the hoop ring 35 on which the ring 36 is attached, such as a rose 9, around the circumferential surface of the butt part.

[It is preferable to use the swage fittings 37, etc. to fasten the parts.Refer to Figures 2-1 and 3]3. In addition, if adjacent divided pieces are provided with corresponding fitting parts (not shown) and these are fitted together, the flip ring 35 described in -1 can be omitted. . C is a means for pulling up the divided piece with []-113, and C is, for example, J in FIG.
is attached to the starting end side divided piece 3C) and 3"I (J- 1
3. If you roll up J2, -[note grip 151
As fi is pulled, grip the divided piece 30.
'), by repeating the addition and movement of the split pieces until reaching the upper end of cable 2 (31), as shown in Figure J)! J.J.
, Form a continuous cylindrical sheath A that spans the entire length of the cable 2 3. The end 9 of the sheath A; In addition, both ends may be provided in the cable sockets 1 to 21 and 21 or connected to the one-singing 22. Although a split tube-shaped split piece is used, the shape of the split piece is limited to a half-tube shape. In order to reduce the movement resistance when moving the division J1 upward, each division) 1' 30
.... 30'..., it is desirable to provide an appropriate gap between the inner circumferential surface of cable 31 and the outer circumferential surface of cable 2. In order to prevent vibrations from occurring, such as collision sounds and damage to the covering △, for example,
) in advance along the cable 2 in a straight line (Fig. 916 (f4
))51.
) One or more inflatable tubes 38 or Lt
Step 3ε3' and apply 1 coat to 1 p in the evening.
Mu II-no 3 and 3゜3mo 3' are full [Matsuki is 01 people and 1 bulge! 6 (two and (・l, su, j', -; t, make the gap even more -)! J1'shibaJ, i1. or IJ
, I put a sponge on the outer surface of Goople 2 in advance, ha? 6p shoe l-+n hand A ・l! 'Siri-cho 1-n, etc. are translated in the space 1-no-double way.
13 (゛Pull 1 - Gel J, I'm doing this, but if you push it a predetermined length at a time instead of this, J, ku, 21, then 1
The divided pieces may be joined and added at the upper part of 0, and the divided pieces may be sequentially moved from here to 1"7i'. As described above, according to the method of the present invention, While moving the joined split pieces sequentially, join the split pieces at one end of the cable,
Since a covering body covering almost the entire length of the rekeful is formed by adding the joints, there is no need for scaffolding for the covering body (ql). However, the length of the divided pieces facing each other in the radial direction By shifting the position in the horizontal direction and joining, the parts are sequentially divided Y'
Since 1 is connected in the length direction as well, there is no need to join the joints in the length direction, and the workability of manufacturing 1'l-Jj is improved. The appearance is further improved, and the appearance is also improved.

[Brief explanation of drawings]

FIG. 1 is a top view schematically showing an embodiment of the present invention, and FIG.
The figure is an enlarged perspective view showing the process of connecting the divided pieces. Figure 3 (an enlarged sectional view taken along the line III--III in Figure 2, A: Figure 4 shows an example of a means for pulling up a divided piece; perspective +2+
, Figure 5 is a sectional view of the completed covering, Figure 6 (a)
It; Yohi (I)) shows an example of means for preventing individual vibrations of the covering and the couple! 7 is a sectional view. . 2...Cable, 3...Sheathing part, 30.3(,)'
, 31...poor) ;9'su11, Δ...
・ The coating is 1,000, patent applicant Shinko Wire Industry Co., Ltd. ``1 Elm... Figure 7

Claims (1)

[Claims] '1. The work of forming a covering part that covers one end of the installed cable (hereinafter referred to as "couple") and the work of moving this part to the other end of the couple by a fixed length are repeated. The 7-nor anti-corrosion coating was made by sequentially tying the coating part 121 times in the direction of the length of the sheeple to form a coating covering almost the entirety of the C1 couple. J Liter, the couple is exposed to acid from both sides; stir many 1
161 multi-divided pieces ij) to form a IIk covering part so that it increases by 1i'i, and the position of the 4 pieces of the divided pieces that touch in the diameter 1 direction in the width direction is Sequentially join each division) X to the preceding division piece on the adjacent side at the corresponding location on the side part along the length direction, in a fixed amount at a time. A method for anti-corrosion coating of vines, which comprises forming a continuous cylindrical coating.