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Corrosion investigation of longitudinal direction of corroded main cable on an actual suspension bridge

 Corrosion investigation of longitudinal direction of corroded main cable on an actual suspension bridge
Autor(en): ORCID, , , ,
Beitrag für IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021, veröffentlicht in , S. 1000-1007
DOI: 10.2749/christchurch.2021.1000
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In this study, in order to clarify the corrosion condition and longitudinal change of an actual suspension bridge main cable used for more than 50 years, the disassembly investigation was conducted...
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Bibliografische Angaben

Autor(en): ORCID (Gifu University, Gifu, Japan)
(Gifu University, Gifu, Japan)
(University of the Ryukyus, Okinawa, Japan)
(Giken Corporation, Gifu, Japan)
(Koei Consultant Corporation, Gifu, Japan)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021
Veröffentlicht in:
Seite(n): 1000-1007 Anzahl der Seiten (im PDF): 8
Seite(n): 1000-1007
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/christchurch.2021.1000
Abstrakt:

In this study, in order to clarify the corrosion condition and longitudinal change of an actual suspension bridge main cable used for more than 50 years, the disassembly investigation was conducted based on the corrosion evaluation criteria applying the rust composition analysis. In the 6 ropes composing the main cable, from the comparison result of the disassembly investigation of all ropes, it was confirmed that the corrosion level on the rope surface tended to be relatively higher than inside. In addition, from the investigation results of the disassembly and the corrosion distribution rate in the longitudinal direction, it was clarified that even if the inside of the strand that composing rope was corroded at a certain cross section, the corrosion condition was changed during the twisting process. Furthermore, it was confirmed that the corrosion tends to progress between the outer strands.

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