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Lifetime Prediction of Existing Highway Bridges Using System Reliability Approach  

Yang, Seung Ie (미국 콜로라도대학교 토목환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.2, 2002 , pp. 365-373 More about this Journal
Abstract
In this paper, the system reliability concept was presented to predict the lifespan of bridges. Lifetime distribution functions (survivor functions) were used to model real bridges to predict their remaining life. Using the system reliability concept and lifetime distribution functions (survivor functions), a program called LIFETIME was developed. The survivor functions give the reliability of component at time t. The program was applied to an existing Colorado state highway bridge to predict the failure probability of the time-dependent system. The bridge was modeled as a system, with failure probability computed using time-dependent deteriorating models.
Keywords
bridges; system reliability; remaining life; lifetime function;
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