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An Analysis of the Long-term Behavior of the Cable System in the Suspension Bridge  

Ryu, Duck-Yong (한국시설안전공단 진단본부)
Kim, See-Dong (극동엔지니어링 구조부)
Jung, Hie-Young (서울시립대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.3, 2009 , pp. 135-144 More about this Journal
Abstract
The cable system of suspension bridges is a very important non-elastic element which caries an external load by a tension force of the cable, such that creates the integrity of a structure. It is not easy to find if cable system have been changed by the maintenance activities such as repairs or reinforcement. Sometimes the maintenance can cause structural deformations and changes of the tension force in cables. In most cases, the cable stayed bridges are managed by health monitering system, however, the main cable of suspension bridges need to develop more accurate and efficient monitoring system. The Namhee Bridge was constructed 35 years ago and it has been continually repaired and reinforced after then. This study describes the behavior of the cable system by analysing many of inspective reports and by using the results of hanger rope test and for the shape of main cables surveys.
Keywords
Cable system; Hanger rope; Main cable; Survey; Suspension bridge;
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