抄録
Reduction of seismic response of house is an important problem for a seismic design. In this paper, two story house are focused on and an oil damper of spherical shapes are proposed. The spherical damper is expected to suppress three dimensional vibration. The damper is improved to increase the effect on reduction of seismic response. The effectiveness of the damper is examined experimentally. It is concluded that the peaks of the frequency response function of the first and the second vibration mode decrease and depend on amplitude of excitation when dampers are used.
