Passive control for seismic response of house with oil damper

Many houses were destroyed in destructive earthquakes in the world. Then, control of seismic response of house is important for protection from destruction. In this paper, two story houses are focused on and oil dampers of some shapes are proposed. Oil damper is connected to the ceiling of the first story and the foundation. The spherical damper and the cylindrical damper with silicon oil are proposed. The effectiveness of the dampers is examined experimentally. It is concluded that the peak of the frequency response function of the first vibration mode decreases and the damping ration increases when the dampers are used. From simulation method using the analytical model, it is found that the maximum response decreases when the dampers are used.