Recent Topics on Bridge Cables and Future Prospects

Mitamura, Takeshi; Nakai, Hiroshi; Watanabe, Eiichi; Sugii, Kenichi

doi:10.2208/jscej.1992.444_97

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“…Table .5 presents the design working stresses in selected suspension bridges built from the 1960's onwards, all using galvanised high-strength steel wires, similar to those tested in this study. Typically, the overall safety factor is in the range of 2 to 2.5, depending on country and year of construction [30]. Depending on main span length, the live to dead load ratio for such bridges varies from about 8% (Akashi-Kaikyo, 1991m), to 12% (Forth road, 1006m), further increasing to circa 16% for shorter spans (Innoshima, 770m).…”

Section: Fatigue Test Methodsmentioning

confidence: 99%

Experimental assessment of the fatigue strength of corroded bridge wires using non-contact mapping techniques

2021

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Section: Fatigue Test Methodsmentioning

confidence: 99%

Experimental assessment of the fatigue strength of corroded bridge wires using non-contact mapping techniques

2021

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Chain reaction failure analysis for tied arch bridge considering cable corrosion

Aoki,

Kimijima,

Gotou

et al. 2024

IABSE Reports

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<p>Cable corrosion has been becoming significant issues for the bridge structures having with cable or hanger materials, such as suspension bridges, cable-stayed bridges, tied arch bridges and so on. Many of these bridges, which were built in 1980s and 90s, are possibly surviving under the cable corrosion. Existing tied arch bridge was collapsed in Taiwan in 2019. It is reported that cable corrosion is the one of the main reasons to trigger the entire bridge collapsed. In this study, the numerical bridge model inspired by the Taiwan arch bridge was designed for analyzing the dynamic analysis of chain reaction failure considering with the cable corrosion. The corrosion of cable is represented by the decreasing of yield stress and breakage strain, and the first ruptured cable which is represented by the decreasing tensile force instantly. According to this analysis, if the cables are corroded significantly, the chain reaction failure would be occurred.</p>

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Recent Topics on Bridge Cables and Future Prospects

Cited by 2 publications

References 11 publications

Experimental assessment of the fatigue strength of corroded bridge wires using non-contact mapping techniques

Experimental assessment of the fatigue strength of corroded bridge wires using non-contact mapping techniques

Chain reaction failure analysis for tied arch bridge considering cable corrosion

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