Lifetime Prediction of a P.S.C Rail Road Bridge

P.S.C 철도교량의 잔존수명 예측

  • Published : 2005.10.01


The biggest challenge bridge agencies face is the maintenance of bridges, keeping them safe and serviceable, with limited funds. To maintain the bridges effectively, there is and urgent need to predict their remaining life from a system reliability viewpoint. In this paper, a model using lifetime functions to evaluate the overall system probability of survival of a rail road bridge is proposed. In this model, the rail load bridge is modeled as a system. Using the model, the lifetime of the rail road bridge is predicted.


  1. Leemis, L. M., (1995). Reliability, probabilistic models and statistical methods, Prentice-Hall, New Jersey, p.319
  2. Maunsell Ltd., (1999). Serviceable Life of Highway Structures and Their Components, Report to Highway Agency, Birmingham
  3. Ang, A. H-S. and Tang, W.H., (1984). Probability Concepts in Engineering Planning and Design Vol. II, Decision, Risk, and Reliability, John Wiley & Sons, New York
  4. Yang, S., Frangopol, D. M., and Neves, L.C., (2004). Service Life Prediction of Structural Systems using Lifetime Functions with Emphasis on Bridges, Reliability Engineering & System Safety, Vol.86, No.1, pp.39-51
  5. Yang, S., (2002). Lifetime Prediction of Existing Highway Bridges Using System Reliability Approach, Korea Society of Steel Construction, Vol.14, No.2, pp.365-373
  6. Yang, S., (2002). Predicting Lifetime Reliability of Deteriorating Systems with and without Maintenance, Ph.D. Thesis, University of Colorado at Boulder