• Title/Summary/Keyword: Structural maintenance

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A Study on Maintenance of Deteriorated Bridge By Long-Term Displacement Monitoring (장기처짐계측에 의한 노후교량의 유지관리에 관한 연구)

  • Kyung, Kab Soo;Lee, Young Il;Lee, Hee Hyun;Park, Yong Jin
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.2 no.3
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    • pp.194-204
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    • 1998
  • This study was performed to suggest the proper maintenance method for the deteriorated gerber type PC box girder bridge by using the long term displacement monitoring data. For this study, the monitoring system which can measure the long term displacement and the concrete surface temperature was designed and operated. From the measurement and structural analysis results, the cause of the permanent deformation which the bridge has already was estimated, and based on this result, the allowable permanent displacement value at the hinge was suggested. From this study, it was known that the long term monitoring system can be applied to the active maintenance of the deteriorated bridge and the suggested allowable permanent displacement could be used for the maintenance of the bridge.

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Development of Internet Based Port Maintenance and Information System(POMIS) (인터넷기반 항만구조물 유지관리 전산화 프로그램 POMIS 개발)

  • 이성우;조남훈;김동수
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2002.10a
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    • pp.219-226
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    • 2002
  • To systematic maintenance and record 10,000 port structures, under Ministry of Maritime and Fisheries, data base management system is required. In this study, POMIS(Port Maintenance and Information System) program is developed for this Purpose. In this program, records for inspection and repair for the various type of port structures can be maintained and operated through internet. Thus ministry can efficiently maintenance and repair port structures and systematically manage computerized maintenance and repair data.

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Correlation Effect of Maintenances on Probabilistic Service Life Management (확률론적 구조물 수명관리의 유지보수 상관관계 영향 평가)

  • Kim, Sunyong
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.20 no.1
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    • pp.48-55
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    • 2016
  • The assessment and prediction of service life of a structure are usually under uncertainty so that rational probabilistic concepts and methods have to be applied. Based on these rational assessment and prediction, optimum maintenance strategies to minimize the life-cycle cost and/or maximize the structural safety can be established. The service life assessment and prediction considering maintenance actions generally includes effects of maintenance types and times of the structural components on the service life extensions of structural system. Existing researches on the service life management have revealed the appropriate system modeling considering the correlation among the components is required for system reliability analysis and probabilistic service life estimation. However, the study on correlation among the maintenance actions is still required. This paper deals with such a study for more effective and efficient service life management. In this paper, both the preventive and essential maintenances are considered for the extended service life estimation and management.