seismic fragility assessment of steel structures equipped by hybrid ring damper

Seismic resilience-based design of structures is an emerging field in earthquake engineering. low-damage structural systems with the ability to reduce the structural and non-structural damages are candidates for these purposes. among the various proposed low-damage systems, structural steel frames with ring metallic dampers capable of dissipating the seismic input energy in a fuse part through yielding are proved to be acceptable low-damage seismic resisting systems (mansouri et al., 2016; andalib et al., 2018).