SEISMIC RESPONSE PREDICTION FOR STEEL BUILDINGS WITH HISTERETIC DAMPERS BASED ON EQUIVALENT LINEARIZATION TECHNIQUE

Abstract

This paper proposes a general method based on equivalent linearization technique using results of static pushover analysis with three dimensional frame model to predict seismic peak responses of steel structures with hysteretic dampers subjected to earthquakes. In this method, the equivalent damping coefficient at a given displacement is obtained by averaging damping coefficients of stationary vibration at displacement amplitude up to that displacement level. Time history response analyses were conducted to ensure accuracy of this method.