Under the offshore environment, RC structures in service experience rebar corrosion due to chloride ion penetration, and their seismic resilience is progressively weakened as service time increases. To investigate the effects of replaceable friction dampers and FRP bars on the life cycle seismic resilience of RC frame-shear wall structures, this paper examines conventional RC frame-shear wall (RCF-SW) structures and RC frame-FRP hybrid reinforced shear wall structures with replaceable friction dampers (RCF-FRSW-FD). The seismic responses of these structures at 0, 35 and 55 years of service are discussed based on the incremental dynamic analysis (IDA) method. Meanwhile, post-earthquake resilience indicators (repair cost, repair time, and casualties) of the two structures are systematically analyzed using the FEMA P-58 theoretical framework. The results show that, as service time increases, structural damage and repair costs rise significantly, repair time is prolonged, and overall resilience declines. Furthermore, the greater the ground shaking intensity, the more pronounced the impact of corrosion on structural deterioration. Compared with the RCF-SW structure, the shear wall employing the replaceable friction dampers and FRP bars can significantly reduce the seismic response and damage probability of the frame-shear wall structure. This combination also effectively enhances the seismic resilience of the structure throughout its life cycle.