Zinc-aluminum alloy coated steel wire for high-strength-and-ductility durable bridge cables

Abstract

The invention discloses a zinc-aluminum alloy coated steel wire for high-strength-and-ductility durable bridge cables, and relates to the technical field of bridge cables. In order to solve the problems that an existing bridge cable is coated with thick zinc to serve as long-term anti-corrosion coating, the anti-corrosion performance is not guaranteed along with increase of the using time, and steel wire cable installation is not convenient enough. The lower end of a bridge supporting main board is provided with a connection stabilizing block, a supporting fixing block is mounted below the connecting stabilizing block, the front end of the bridge supporting main board is provided with a zinc-aluminum alloy coated steel wire main body, the two ends of the zinc-aluminum alloy coated steel wire main body are provided with steel wire fixing connecting blocks, a connecting fixing main block is arranged at the middle position above the bridge supporting main plate, a main coating steel wireis installed at the middle position inside the zinc-aluminum alloy coated steel wire main body, and a second coated steel wire is installed on the exterior of the main coating steel wire.

Description

technical field [0001] The invention relates to the technical field of bridge cables, in particular to zinc-aluminum alloy coated steel wires for high-strength, tough and durable bridge cables. Background technique [0002] Cables are the lifeline of bridges and the main stress-bearing components of long-span bridges, generally consisting of hundreds to tens of thousands of steel wires with a diameter of five to seven millimeters. With the increase of the span of the bridge, the self-weight of the unit span of the steel cable will increase nonlinearly and accelerate, so that the total self-weight of the unit span of the cable bridge will also accelerate. The first result is that the proportion of the material strength of the cable used to bear its own weight increases, the proportion used to bear the load is relatively reduced, and the bearing efficiency is reduced; the second is that under the current steel wire strength, a larger cross-sectional area of ​​the cable is requ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide high-strength toughness, durable zinc-aluminum alloy coated steel wire for bridge cables, to solve the existing bridge cables proposed in the above-mentioned background technology all can be coated with thick zinc as long-term anti-corrosion coating, with the use time The increase of the increase, the lack of guarantee of anti-corrosion performance, and the problem that the installation of steel wire rope is not convenient enough

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