A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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.
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.
Seismic Resilience of Aging Bridges in India
Sharanbaswa, B. (author) / Banerjee, Swagata (author)
ASCE India Conference 2017 ; 2017 ; New Delhi, India
2018-12-13
Conference paper
Electronic Resource
English
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