Estimation of Fatigue Damage Degree of Brace-Type Hysteretic Dampers Installed in High-Rise Building Subjected to Strong Wind With Changing Wind Speed and Direction

As buildings become taller, seismic control structures using hysteretic dampers have become widespread. These dampers yield at low load levels, mainly for earthquakes. As a result, hysteretic dampers installed for response reduction may yield under both earthquakes and wind forces. Wind-induced responses persist much longer than seismic responses; therefore, it is important to consider fatigue damage of hysteretic dampers subjected to wind forces. However, predicting wind-induced damage remains challenging. In this paper, we analyze the wind-induced damage of hysteretic dampers installed in a high-rise building, considering wind response with changing wind speed and direction through Time-history analysis.