Optimal retrofit strategy using viscous dampers between adjacent RC and SMRFs prone to earthquake-induced pounding

Abstract Nowadays, retrofitting-damaged buildings is an important challenge for engineers. Finding the optimal placement of Viscous Dampers (VDs) between adjacent structures prone to earthquake-induced pounding can help designers implement VDs with optimizing cost construction and achieving higher performance levels both structures. In this research, linear nonlinear 3-story, 5-story, 9-story Steel RC Moment-Resisting Frames (SMRFs MRFs) investigated. It shown that phenomenon significantly affect seismic capacities during earthquakes, using improve limit-state retrofitting purposes. For goal, colliding were assessed Incremental Dynamic Analysis (IDA) assuming Near-fault Pulse-Like, No-Pulse, Far-Fault records suggested by FEMA-P695. To perform IDAs, modeled according codes a developed algorithm in Matlab OpenSees software ability remove collapsed structure analysis. The results present also compare possible conditions VDs. Using these results, engineers approximately predict their final after retrofitting. Finally, modification factors proposed retrofitted without involving complicated time-consuming analyses.