Composite inhaul cable with totally-closed carbon fiber wires and high-strength steel wire

Abstract

The invention relates to a novel cable body structure of a composite inhaul cable with totally-closed carbon fiber wires and a high-strength steel wire, which is mainly used for inhaul cables in large-span structures such as cable rope bearing bridges and cable-strut tension structures. A high-strength steel wire (1) of the composite inhaul cable is positioned at the core part of the composite inhaul cable; an inner-layer polyester fiber high-strength wrapping tape (2) winds around the high-strength steel wire (1); Z-shaped carbon fiber wires (3) of which the outer parts are occlusive mutually wrap the inner-layer polyester fiber high-strength wrapping tape (2); an outer-layer polyester fiber high-strength wrapping tape (4) winds outside the Z-shaped carbon fiber wires (3) of which the outer parts are occlusive mutually; and a peripheral high-density polyethylene sheath (5) wraps the outer-layer polyester fiber high-strength wrapping tape (4). The novel cable body structure can ensure that a totally-closed carbon fiber wire layer can still prevent harmful substances such as water and gas from entering the steel wire cable body of which the core part zinc-coated wire when plastic sheaths of the inhaul cable are damaged unexpectedly or cracks with aging after the plastic sheaths are used for years, and can reduce the dead weight of the cable body and improve the availability factor of the inhaul cable.

Description

technical field [0001] The invention belongs to a new cable body structure form of a cable as a load-bearing component in a long-span structure of civil engineering. It is composed of a carbon fiber layer with a fully enclosed effect on the outer periphery and a high-strength steel wire at the core, and can be used for cable load-bearing bridges and cable rods. Cables in long-span structures such as tension structures. Background technique [0002] At present, cables in large-span structures such as cable-bearing bridges and cable-strut tension structures generally use steel cables with semi-parallel twisted galvanized high-strength steel wires and outsourcing high-density polyethylene plastic sheaths. In the case of damage or plastic aging and cracking after a certain year of use, harmful substances such as water and air enter the core galvanized steel wire cable, which will easily cause corrosion of the steel wire, reduce the durability of the cable, and directly affect th...

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Problems solved by technology

[0004] Technical problem: In order to solve the problem of sealing waterproof of the cable body after the plastic sheath of the cable body is accidentally damaged or aged and cracked, the problem of gas and harmful substance erosion, and the problem of improving the use efficiency after reducing the weight of the cable body, the invention provides a fully enclosed carbon fiber wire and High-strength steel wire composite cable, the cable body structure can not only solve the problem of double protection of the cable and improve the durability of the cable body, but also reduce the weight of the cable body and improve the use efficiency of the cable

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