Application of Smart Dampers for Prevention of Seismic Pounding in Isolated Structures Subjected to Near-fault Earthquakes
Arash Rayegani, Gholamreza Nouri
Abstract
This paper investigates the performance of the Magnetorheological damper as a smart dissipating device in the isolated buildings for prevention of seismic pounding. To that end, an isolated building was modeled by considering the pounding effect with different gap distances. Multi-objective optimization was performed to optimize the fuzzy logic control of damper for each gap distance. The results showed that the optimized semi-active control system can prevent the pounding of the building and greatly improve the structure’s behavior as compared to the isolated pounded building and even to the case without the pounding at some considered gap distances.
Topics & Concepts
DamperStructural engineeringEngineeringMagnetorheological fluidSeismic retrofitEarthquake resistant structuresFault (geology)Seismic analysisReinforced concreteGeologySeismologyVibration Control and Rheological FluidsSeismic Performance and AnalysisStructural Engineering and Vibration Analysis