Design of Active Mass Damper to Improve Seismic Performance Using Capacity Spectrum Method

내진성능 향상을 위한 능력스펙트럼법에 의한 능동제어기 설계

This paper begins with the seismic performance evaluation of an existing building, which exhibits the need of additional damping to reduce its response. Required damping ratio is found by capacity spectrum method to satisfy a target response. It is expressed with the design parameter of active mass damper by adopting Linear Quadratic Regulator, Optimal gains are obtained and then weighting matrices are found. Finally the seismic performance by added active mass damper is demonstrated, which satisfies the target response.