Self-vibration attenuation cable and installation method thereof

An installation method and cable technology, which is applied in the field of bridge cables, can solve the problems of cable vibration, poor effect, adverse effects on structural stability, etc., and achieve the effect of improving service life and simple manufacturing and installation methods

Inactive Publication Date: 2013-12-25
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The Haval sheath is composed of two or three lobes of plastic profiles interlocked. It belongs to a kind of sheath used to protect cables. It is widely used in bridge cable systems, external cable systems, suspenders, and tie rod systems. Cable outer layer protection and old cable reinforcement; the existing Haval sheath (patent number: ZL00266560.3) and cable sheath (patent number: ZL97217686.1) have smooth surfaces, and their resistance to the impact of wind and rai

Method used

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  • Self-vibration attenuation cable and installation method thereof
  • Self-vibration attenuation cable and installation method thereof
  • Self-vibration attenuation cable and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A self-damping cable, its basic structure is as follows figure 1 As shown, the self-damping cable includes a cable body 1 and a Haval sheath 5 located on the outer layer of the cable body 1. There is an isolation layer 2 between the cable body 1 and the Haval sheath 5 located on the outer layer of the cable body. The isolation layer 2 Including damping rubber 21 or viscoelastic body or slow setting material or a mixture of both damping rubber and viscoelastic body or slow setting material, the isolation layer is either directly distributed on the entire length of the rope, or They are fixedly distributed on the cables through the positioning grooves 51 provided on the inner wall of the Haval sheath.

[0042] Such as Figure 4-6 As shown, the damping rubber block 21 has a semicircular structure, and a boss is arranged on the back thereof, and the damping rubber block 21 is installed in cooperation with the positioning groove through the boss.

[0043] The positioning g...

Embodiment 2

[0047] A kind of self-damping cable with double helical ribs arranged on the outer surface of the Haval sheath, its basic structure is the same as that of Embodiment 1, and the difference from Embodiment 1 lies in: the outer surface of the Haval sheath 5 is provided with double helical ribs. Helical ribs 4, the double helical ribs 4 can be integrally formed with the Haval sheath 5 or wound in the factory, or can be wound after the Haval sheath 5 is fastened on the construction site (see figure 2 , image 3 ).

Embodiment 3

[0049] A self-damping cable with a plurality of pits distributed on the outer surface of the Haval sheath, its basic structure is the same as that of Embodiment 1, the difference lies in: the outer surface of the Haval sheath 5 is geometrically distributed in dots or randomly distributed with multiple dimples3 (see Figure 7 ), the cross-sectional shape of the pits is rectangle, trapezoid, semicircle, semi-ellipse, triangle or other arbitrary polygons, and the distance between the pits is equal or unequal.

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Abstract

The invention discloses a self-vibration attenuation cable, which comprises a cable body and a Haver sheath arranged on the outer layer of the cable body, wherein an isolation layer is arranged between the cable body and the Haver sheath positioned on the outer layer of the cable body; the isolation layer comprises damping rubber, a viscoelastic body, slow condensation material or a mixed body of the above three materials; the isolation layer is directly distributed on the length of the whole cable or is distributed on the cable in the fixed point by a positioning groove arranged on the inner wall of the Haver sheath; a damping rubber block installed on the inner wall of the Haver sheath is in a semicircular structure; the back of the damping rubber block is provided with a boss; the boss and the positioning groove are in cooperative installation; and the outer surface of the Haver sheath is provided with a plurality of pits, is provided with a double-spiral rib or is simultaneously provided with a plurality of pits or wound with the double-spiral rib. The cable body and the Haver sheath self-vibration attenuation cable on the outer layer of the self-vibration attenuation cable have the advantages of good durability and vibration attenuation function, the influence on resisting rain-wind induced vibration by the cable can be improved, and the anti-fatigue service life of the cable body is prolonged. The manufacture method of the self-vibration attenuation cable is simple and convenient.

Description

technical field [0001] The invention relates to a bridge cable, in particular to a self-damping cable with a Harvard sheath on the outer layer and an installation method thereof. Background technique [0002] The Haval sheath is composed of two or three lobes of plastic profiles interlocked. It belongs to a kind of sheath used to protect cables. It is widely used in bridge cable systems, external cable systems, suspenders, and tie rod systems. Cable outer layer protection and old cable reinforcement; the existing Haval sheath (patent number: ZL00266560.3) and cable sheath (patent number: ZL97217686.1) have smooth surfaces, and their resistance to the impact of wind and rain is poor : In addition, after the installation of the cable body with Haval sheath, there is a gap between the inner diameter of the sheath and the cable body, and the outer surface of the sheath has no measures to resist wind and rain vibration, under the action of wind and rain, the inner wall of the she...

Claims

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Application Information

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IPC IPC(8): E01D19/16E01D21/00
Inventor 石伟谢正元华剑平刘思妤黄永玖梁黎霞
Owner LIUZHOU OVM MASCH CO LTD
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