Damage Assessment of Reinforced Concrete Bridges Under the Ground Motions - a Probabilistic Approach

Abstract Bridges are important structures for urban civilization. The catastrophic damage to bridges during an earthquakes cause sudden disruption to human livelihood. For making bridges resilient to earthquakes proper damage assessment technique is inevitable. The present study has been carried out to evaluate damage of reinforced concrete bridge under the seismic loadings using a probabilistic approach. Nine earthquakes were considered for seismic vulnerability assessment. From the obtained results, different damage states were discussed based on intensity measures using Incremental Dynamic Analysis (IDA) and Fragility Analysis. This study may be used as a viable tool for health monitoring, vulnerability assessment and formulating retrofit strategies of the reinforced concrete bridges under the seismic loadings.