Monitoring system and ambient vibration test of Namhae Suspension Bridge

Chul-Young Kim; Namsik Kim; Jah-Geol Yoon; Dae-Sung Jung

doi:10.1117/12.387824

9 June 2000 Monitoring system and ambient vibration test of Namhae Suspension Bridge

Chul-Young Kim, Namsik Kim, Jah-Geol Yoon, Dae-Sung Jung

Proceedings Volume 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV; (2000) https://doi.org/10.1117/12.387824
Event: SPIE's 5th Annual International Symposium on Nondestructive Evaluation and Health Monitoring of Aging Infrastructure, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

Chul-Young Kim, Namsik Kim, Jah-Geol Yoon, and Dae-Sung Jung "Monitoring system and ambient vibration test of Namhae Suspension Bridge", Proc. SPIE 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, (9 June 2000); https://doi.org/10.1117/12.387824

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