Corrosion Fatigue Test and Performance Evaluation of High-Strength Steel Wires Based on the Suspender of a 11-Year-Old Concrete-Filled Steel Tube Arch Bridge

被引：6

作者：

Deng, Yulin ^{[1
]}

Deng, Luming ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Transportat & Logist Engn, Dept Rd & Bridge Engn, Wuhan 430063, Peoples R China

来源：

COATINGS | 2022年 / 12卷 / 10期

关键词：

arch bridge suspender; corrosion of steel wire; fatigue test; service life; surface treatments; prediction model; LIFE PREDICTION;

D O I：

10.3390/coatings12101475

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, based on an actual project, the steel wire in the suspender of a concrete-filled steel tube arch bridge was selected from appropriate samples to perform acetic acid-accelerated salt spray tests, and steel wire samples with different corrosion degrees were obtained. A laser microscope was used to measure the roughness of the samples, and three corrosion samples were randomly selected from each group for grinding. Fatigue tests were performed on steel wire samples with different degrees of corrosion and polished steel wire samples, and the fatigue fracture was observed and analyzed. The results showed that few cracks on the steel wire surface could be eliminated by grinding, and the fatigue life of the specimens could be increased. Finally, the stress-life-mass loss rate (S-N-eta) probability model based on the Weibull distribution was obtained using the measured fatigue data, which can be further referenced in the planning of the inspection of suspender service status, steel wire corrosion protection, and fatigue life prediction, etc.

引用

页数：17

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