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Proceedings Paper

Monitoring system and ambient vibration test of Namhae Suspension Bridge
Author(s): Chul-Young Kim; Namsik Kim; Jah-Geol Yoon; Dae-Sung Jung
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Paper Abstract

Namhae Bridge, completed in May 1973, connects Namhae Island with mainland Korea in the province of Kyongsangnamdo. It is a three-span suspension bridge with a main span length of 404 m, and side spans of 128 m each. A geometric survey and static loading test was carried out and the deck geometry obtained from the survey was compared with the intended geometry of the original design. On the other hand, a long-term monitoring system for Namhae Bridge was employed in December 1996. The objective is to monitor the structural responses of the bridge with a view to identifying the deterioration rate over a long- term period. The monitoring system consists of 110 channels of both static and dynamic sensors such as strain gages accelerometers, tiltmeters, jointmeters and anemometers. A vehicle loading test was carried out in order to obtain the initial values of Namhae Bridge. An ambient vibration test for the whole bridge was carried out in 1999. Mode shapes as well as natural frequencies were found to give a more precise description of the current stage. These results will be used as a reference for the future monitoring.

Paper Details

Date Published: 9 June 2000
PDF: 9 pages
Proc. SPIE 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, (9 June 2000); doi: 10.1117/12.387824
Show Author Affiliations
Chul-Young Kim, Myongji Univ. (South Korea)
Namsik Kim, Hyundai Institute of Construction Technology (South Korea)
Jah-Geol Yoon, Seoul National Univ. (South Korea)
Dae-Sung Jung, Myongji Univ. (South Korea)

Published in SPIE Proceedings Vol. 3995:
Nondestructive Evaluation of Highways, Utilities, and Pipelines IV
A. Emin Aktan; Stephen R. Gosselin; Stephen R. Gosselin, Editor(s)

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