Based on the assumption of hystereticdamping, seismic response of soil layer was analyzed by using the methods of time domain and frequency domain separately.
采用滞后阻尼假定，分别应用时域和频域分析方法对土层的地震反应进行计算。
2
The correspondence between viscous damping and hystereticdamping models was explained, which lays a basis for evaluating damping ratio of structural control element under major earthquake.
简述了粘滞阻尼与滞变阻尼模型之间的联系和对应关系，作为结构振动控制元件在强震下阻尼推算的理论基础。
3
On the basis of energy-equivalence principle, the hysteretic structure considered is converted into a combination of a damping dissipation part and a nonlinear elastic structure.