Bridges may suffer relevant damage in case of a seismic event, and this issue can be magnified due to deterioration phenomena induced by environmental agents, like CO2 emissions or chlorides. Ensuring adequate seismic reliability levels for existing infrastructure components is therefore a key issue for owners in earthquake-prone countries. The present work illustrates how owners should plan maintenance interventions aimed at improving seismic performance of existing reinforced concrete bridge with the use of a seismic reliability assessment procedure able to quantify time-variant seismic reliability profiles due to aging and gains in terms of structural safety achievable with the implementation of different retrofitting protocols. A closer look on the effectiveness of FRCM retrofitting systems is presented in this study.
How to schedule seismic retrofitting of rc bridges subjected to environmental deterioration through seismic reliability analyses: Part 2
Zanini M. A.;Toska K.;Faleschini F.;Pellegrino C.
2021
Abstract
Bridges may suffer relevant damage in case of a seismic event, and this issue can be magnified due to deterioration phenomena induced by environmental agents, like CO2 emissions or chlorides. Ensuring adequate seismic reliability levels for existing infrastructure components is therefore a key issue for owners in earthquake-prone countries. The present work illustrates how owners should plan maintenance interventions aimed at improving seismic performance of existing reinforced concrete bridge with the use of a seismic reliability assessment procedure able to quantify time-variant seismic reliability profiles due to aging and gains in terms of structural safety achievable with the implementation of different retrofitting protocols. A closer look on the effectiveness of FRCM retrofitting systems is presented in this study.
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