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http://dx.doi.org/10.5762/KAIS.2018.19.7.88

Analysis of Regional Relative Humidity Environment for Dehumidification System Efficiency of Suspension Bridge Cable  

Seo, Dong-Woo (Korea Institute of Civil Engineering and Building Technology (KICT))
Kim, Ga Young (Korea Institute of Civil Engineering and Building Technology (KICT))
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.7, 2018 , pp. 88-94 More about this Journal
Abstract
This study examined the safety of a cable stayed bridge caused by damage to the cable system. Many cable-supported bridges, including cable-stayed bridges and suspension bridges, have been constructed on the Korean peninsula. This requires efficient maintenance and management because this structure has complex structural components and systems. This large structure also often faces risks either from manmade causes or natural phenomena. In 2015, the cables on one cable-stayed bridge in South Korea was struck by lightning, which led to a fire on the cables. These cables were damaged, which put the bridge at risk. This bridge was back in use after a few weeks of investigations and replacements of the cables but this was done at enormous social and economic expense. After this event, risk-based management for infrastructure is required by public demand. Therefore, this study examined the risks on the cable system due to potential damage. In this paper, a one cable-stayed bridge in South Korea was selected and its safety was investigated based on the damage scenarios of cable system for efficient and prompt management, and to support decision making. FEM analysis was conducted to evaluate the safety of the bridges after damage to the cable system.
Keywords
Dehumidification system; Main cable; Maintenance; Relative humidity; Suspension bridge;
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