Use of real-time hybrid simulation to evaluate the performance-based seismic design of steel MRFs with compressed elastomer dampers

摘要

This paper presents an experimental program using real-time hybrid simulation to verify the performance-based seismic design of a two story, four-baysteel moment resisting frame (MRF) building with compressed elastomer dampers.The laboratory specimens, referred to as experimental substructures, are twoindividual compressed elastomer dampers, while the remaining part of the building ismodeled as an analytical substructure. The proposed experimental technique enablesan ensemble of ground motions to be applied to the building, resulting in variouslevels of damage, without the need to repair the experimental substructures since thedamage is within the analytical substructure. Statistical experimental response resultsincorporating the ground motion variability show that an MRF with compressedelastomer dampers can be designed to perform better than a conventional steel specialmoment resisting frame (SMRF), even when the MRF with dampers is significantlylighter in weight than the conventional SMRF.