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Definition, End-of-life Criterion and Prediction of Service Life for Bridge Maintenance
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 Title & Authors
Definition, End-of-life Criterion and Prediction of Service Life for Bridge Maintenance
Jeong, Yo-Seok; Kim, Woo-Seok; Lee, Il-Keun; Lee, Jae-Ha; Kim, Jin-Kwang;
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The present study proposes the definition of service life and the end-of-life criterion for bridge maintenance. Bridges begin to deteriorate as soon as they are put into service. Effective bridge maintenance requires sound understanding of the deterioration mechanism as well as the expected service life. In order to determine the expected service life of a bridge for effective bridge maintenance, it is necessary to have a clear definition of service life and end-of-life. However, service life can be viewed from several perspectives based on literature review. The end of a bridge`s life can be also defined by more than one perspective or performance measure. This study presents definition of service life which can be used for bridge maintenance and the end-of life criterion using the performance measure such as a damage score. The regression model can predict an average service life of bridges using the proposed end-of-life criterion.
Bridge maintenance;End-of-life criterion;Regression model;Service life;
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예방적 유지관리를 통한 교량의 생애주기비용 절감 효과 분석,정유석;김우석;이일근;이재하;

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