I am glad to share our recently published work dealing with Maintenance interventions period of existing RC motorway viaducts located in moderate/high seismicity zones.
In this paper, the evaluation of the seismic vulnerability of three existing RC motorway bridges has been developed using non-linear time history analysis. Three corrosion scenarios (slight, moderate and high) have been analysed. The effects of the carbonation, expressed in terms of piers steel rebars area reduction, have been considered as a function of the age of the viaduct. Risk indices calculated as the ratio of the peak ground acceleration leading to collapse of the first structural element and the design peak ground acceleration, are useful to optimize the scheduling of the motorway networks maintenance interventions.
More details could be found with this free access link
Many thanks to Marco Zucca, Pietro Crespi, Mario Lucio Puppio and Mauro Coni for the wonderful collaboration!
#civilengineering #engineering #structures #Concrete #RC #Bridges #Vulnerability #Corrosion #Seismic