Seismic Fragility Assessment of RC Bridges under Marine Environments

This is the authors' abstract. We don't add key points for this paper.

The chloride-induced corrosion of steel bars is focused in this study which is one of the major causes of deterioration of RC bridges under marine environments. The steel corrosion usually causes cracking and spalling of the concrete cover due to the expansion of corrosion products. Structural distress due to loss of bond or reduction of the cross-sectional area can be caused with time. A girder bridge exposed to the marine environment is studied to present the fragility curves variance in time in this study. The damage states of the bridge are determined to five stages by using the maximum displacement ductility. The proposed method will be useful to evaluate the seismic performance of new or existing bridges considering steel rebar corrosion.