KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

Estimating Tensile Force of Hangers in Suspension Bridges Using Frequency Based SI Technique: II. Field Applications

진동기반의 SI 기법을 이용한 현수교 행어의 장력 추정: II. 현장적용

Kim, Byeong-Hwa;Moon, Seok-Yong;Bae, In-Hwan;Park, Tae-Hyo
김병화;문석용;배인환;박대효

  • Published : 2007.03.31

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Abstract

This paper introduces a field application of a newly proposed tension estimation method for a double hanger cable system in suspension bridges. As described in the accompanying paper, the method is based on the frequency-based system identification technique in conjunction with a finite element analysis. A set of field modal testing has been completed to measure a set of the natural frequencies and the mode shapes of hanger cables in the Yong-Jong Grand Suspension Bridge. From the measured data, the interesting dynamic characteristics of double hanger cable system due to a clamp have been revealed. Next, the feasibility and applicability of the proposed method are examined for the field data. The results are compared with those of the previous study. The estimated tension of the proposed approach is similar to that of the existing method if the length of hanger cable is relatively long. However, a significant difference has been found in the case of relatively short hanger cable system.

Keywords

References

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