Preventive maintenance and technical development on long-span bridges

Okuda, M.; Yamada, Ikuo; Hasegawa, Y

doi:10.1201/b10430-395

Cited by 2 publications

(2 citation statements)

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“…Along this line, monitoring of long-span bridges should shift from the fashionable (nice to have) paradigm to essential (useful to have) paradigm, where the usefulness of monitoring system and its results for structural understanding becomes the key. (Okuda et al 2010)…”

Section: Discussionmentioning

confidence: 99%

“…The bridges employ high-strength steel, which is sensitive to fatigue, to primary members. Honshu-Shikoku Bridge Expressway authority has developed a welding methodology as well as a welding inspection system called "AUT: Automated Ultrasonic Testing system" (Okuda et al 2010). The system was effective in detecting welding defect in the factories.…”

Section: Monitoring For Maintenance and Management Of Bridge Assetmentioning

confidence: 99%

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Japan's experience on long-span bridges monitoring

Fujino¹,

Siringoringo²,

Abé³

2016

Structural Monitoring and Maintenance

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This paper provides an overview on development of long-span bridges monitoring in Japan, with emphasis on monitoring strategies, types of monitoring system, and effective utilization of monitoring data. Because of severe environment condition such as high seismic activity and strong wind, bridge monitoring systems in Japan historically put more emphasis on structural evaluation against extreme events. Monitoring data were used to verify design assumptions, update specifications, and facilitate the efficacy of vibration control system. These were among the first objectives of instrumentation of long-span bridges in a framework of monitoring system in Japan. Later, monitoring systems were also utilized to evaluate structural performance under various environment and loading conditions, and to detect the possible structural deterioration over the age of structures. Monitoring systems are also employed as the basis of investigation and decision making for structural repair and/or retrofit when required. More recent interest has been to further extend application of monitoring to facilitate operation and maintenance, through rationalization of risk and asset management by utilizing monitoring data. The paper describes strategies and several examples of monitoring system and lessons learned from structural monitoring of long-span bridges in Japan.

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Section: Discussionmentioning

confidence: 99%

Section: Monitoring For Maintenance and Management Of Bridge Assetmentioning

confidence: 99%