A probabilistic approach to lifetime assessment of seismic resilience of concrete structures under corrosion is presented. The seismic capacity is assumed as time-variant functionality indicator and the seismic resilience is evaluated based on a suitable analytical representation of the functionality recovery profile. The proposed approach is applied to a four-span continuous bridge with box cross-section piers exposed to corrosion. A parametric analysis is performed to highlight the influence of the main factors of the recovery process. The results show that the detrimental effects of structural deterioration may affect the effectiveness of the recovery process and lead over time to a significant increase of uncertainty of the seismic resilience.
Seismic resilience of deteriorating concrete structures
TITI, ANDREA;BIONDINI, FABIO;
2015-01-01
Abstract
A probabilistic approach to lifetime assessment of seismic resilience of concrete structures under corrosion is presented. The seismic capacity is assumed as time-variant functionality indicator and the seismic resilience is evaluated based on a suitable analytical representation of the functionality recovery profile. The proposed approach is applied to a four-span continuous bridge with box cross-section piers exposed to corrosion. A parametric analysis is performed to highlight the influence of the main factors of the recovery process. The results show that the detrimental effects of structural deterioration may affect the effectiveness of the recovery process and lead over time to a significant increase of uncertainty of the seismic resilience.| File | Dimensione | Formato | |
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