Loading...

Risk-Cost optimized maintenance strategy for steel bridge subjected to deterioration

Li, L ; Sharif University of Technology | 2022

17 Viewed
  1. Type of Document: Article
  2. DOI: 10.3390/su14010436
  3. Publisher: MDPI , 2022
  4. Abstract:
  5. This paper aims to develop a deteriorated bridge maintenance strategy that ensures the safe operation of steel structures and minimizes the total risk. Five common failure modes are considered for the deteriorated bridge: flexure, shear, deflection, fatigue failure for girder, and chloride attack for the concrete deck. Time-dependent and system reliability analyses are carried out to find the probability of failure under these failure modes. Risk-cost optimization is then used to determine the maintenance strategy. This method was applied to a working example. It was found that the developed maintenance strategy can predict when, where, and what to maintain for a bridge to ensure its safe and serviceable operation during its lifespan. The proposed methodology can help structural engineers and asset managers repair and maintain bridges under deterioration. © 2021 by the authors. Licensee MDPI, Basel, Switzerland
  6. Keywords:
  7. Bridge ; Deterioration ; Reliability ; Risk-cost optimization ; Bridge ; Methodology ; Optimization ; Probability ; Research and methodology ; Strategic approach ; Transport structure
  8. Source: Sustainability (Switzerland) ; Volume 14, Issue 1 , 2022 ; 20711050 (ISSN)
  9. URL: https://www.mdpi.com/2071-1050/14/1/436