Abstract
A general method is proposed to predict seismic peak responses of steel structures with velocity-dependent dampers subjected to earthquakes based on equivalent linearization technique by means of static pushover analysis with three dimensional frame models. Damper elements installed in static analysis frame models are represented by combination of simple nonlinear elastic springs and equivalent viscous damping coefficients both obtained by a series of stationary vibration on analyses for various amplitude. This method is effective for any kinds and types of construction of dampers. Time history response analyses were conducted to ensure accuracy of this method.
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