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Correlation Effect of Maintenances on Probabilistic Service Life Management

확률론적 구조물 수명관리의 유지보수 상관관계 영향 평가

  • Received : 2015.08.04
  • Accepted : 2015.11.04
  • Published : 2016.01.01

Abstract

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.

Keywords

Correlation;Maintenance;Life-cycle;Service life;Structural reliability

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Acknowledgement

Supported by : 원광대학교