Seismic Resilience of Aging Bridges in India

Learning from the undesirable past catastrophes, there are growing worldwide recognition and interests among the engineering professionals and decision makers to build and maintain resilient and sustainable civil infrastructure systems. The current study presents a quantitative framework for estimating seismic resilience of aging bridges in India. A typical three-span bridge is analysed for this purpose. Three dimensional (3D) finite element (FE) model of the bridge is developed to simulate bridge characteristics at its pristine, 30-year, and 60-year deteriorated conditions. Nonlinear time history analyses are performed to express seismic vulnerability of the bridge in the form of fragility curves. Seismic resilience of the bridge is evaluated at various stages of its lifecycle by integrating bridge performance (or, vulnerability) under seismic events, resultant losses due to bridge damage, and its post-event recovery. Research outcome reveals time-dependent variation of seismic resilience of the studied bridge. As expected, high resilience of the bridge is obtained at its pristine condition, and the resilience value gradually reduces due to bridge deterioration with time.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 571-581
  • Monograph Title: Urbanization Challenges in Emerging Economies: Resilience and Sustainability of Infrastructure

Subject/Index Terms

Filing Info

  • Accession Number: 01698820
  • Record Type: Publication
  • ISBN: 9780784482032
  • Files: TRIS, ASCE
  • Created Date: Feb 23 2019 3:05PM