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Vibration absorption steel wire inhaul cable for bridge

A technology for bridges and steel wires, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as lack of buffer protection, reduced service life, and coating damage, and achieve improved service life, reduced costs, and high corrosion resistance. Effect

Active Publication Date: 2018-07-10
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the non-metallic protective layer, chemical protective layer and metal protective layer commonly used at present have problems such as hydrogen embrittlement and aging. Sheath Composition
During the storage, transportation and construction process, the steel cables of the above structure will come into contact with each other under force, resulting in damage to the coating. At the same time, there is no effective buffer protection between the steel wires, which is also prone to wear and tear, and the service life is reduced.

Method used

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  • Vibration absorption steel wire inhaul cable for bridge

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, a steel wire cable for a bridge includes a plurality of smooth steel wires 1, the plurality of smooth steel wires 1 are arranged in a hexagonal close-packed manner, and the outer surface of the steel wires is coated with a particle layer 2 forming a rough surface, The particle layer is coated with a protective coating, and there is a foam shock absorbing material 4 between the multiple steel wires with the protective coating, and the outer layer is wrapped with a rigid shell 5 and a HDPE sheath 7, and the rigid shell 5 and the HDPE sheath 7 is provided with flame-retardant layer 6 between.

[0015] The specific processing method is as follows: first select the steel wire, the composition of the steel wire is: C: 0.32-0.58%, Si: 4.1-5.3%, Ti: 1.1-1.3%, Ni: 1.0-1.1%, Cr: 0.1-0.8%, Mo: 0.1-0.15%, Cu: 0.04-0.06%,...

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Abstract

The invention discloses a steel wire inhaul cable for a bridge. The steel wire inhaul cable comprises multiple bright steel wires which are distributed in a close-packed hexagonal manner. The externalsurface of each bright steel wire is coated with a particle layer which forms a roughened surface, each particle layer is coated with a protective coating, foaming vibration absorption materials arearranged among multiple bright steel wires with the protective coatings, an outer layer of the steel wire inhaul cable is wrapped with a rigid shell and an HDPE sheath, and an inflaming retarding layer is arranged between the rigid shell and the HDPE sheath. Through the steel wire inhaul cable, the service life of the steel wires can be prolonged, the effects of vibration absorption and bufferingcan be played, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of bridges, in particular to a steel wire cable for bridges. Background technique [0002] Cable-stayed bridge, also known as cable-stayed bridge, is a bridge in which the main girder is directly pulled on the bridge tower with many cables. As a cable system, it has a larger spanning capacity than beam bridges and is the most important feature of long-span bridges. bridge type. Cable-stayed bridges are mainly composed of cable towers, main girders, and cable-stayed cables. The bridge deck is lifted by many steel cables directly connected to the towers. Prestressed steel wire cables are a key force-bearing component in the bridge structure and require Good strength, toughness, corrosion resistance and shock absorption properties. At present, bridge steel wire cables for prestressing are usually manufactured according to the national standard GB / T 18365-2001. However, the non-metallic protective layer, chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/42C22C38/44C22C38/50C22C38/58C22C38/04C22C38/02B29C44/18E01D19/16
CPCC22C38/02C22C38/04C22C38/42C22C38/44C22C38/50C22C38/58E01D19/16B29C44/18Y02A30/14
Inventor 董丽娜王琨徐向锋
Owner SHANDONG JIAOTONG UNIV
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