Randomized trial assesses the impact of corrosion and fatigue on the strength of steel wires for bridges, suggesting crucial implications for material management.
Due to the corrosion, fatigue, and their coupled effects on high-strength galvanized steel wires, which constitute the bridge cables, the service life of bridge cables is much lower than the design life of cable-stayed bridges and suspension bridges. Thus, it is essential to assess the residual strength and fatigue life of corroded steel wires, which should be useful for bridge engineers in determining the necessity of replacing the steel wires in service. In this study, the residual properties of high-strength galvanized steel wires were tested in tension to present the effects of corrosion levels, corrosion pit depths, and fatigue loading. Then complementary fatigue tests on the corroded steel wires were performed to assess the fatigue life of the corroded steel wires. Moreover, a series of corrosion fatigue tests were also conducted on the high-strength galvanized steel wires to explore the effects of corrosion media, temperature, loading frequency, and stress amplitude on their corrosion fatigue life.
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Xu et al. (2026) studied this question.
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