Hysteretic damping application in time domain analysis of soil layer
2.
The pile is assumed to be vertical , elastic and of uniform cross - section , and the soil is regarded as a linear visco - elastic layer with hysteretic damping
3.
It indicates that viscous damping of soil layer shows a clear different effect on dynamic response at pile head comparing to hysteretic damping
4.
The main original work includes : 1 . the interaction between an integral pile and a uniform visco - elastic soil layer with viscous damping or hysteretic damping is theoretically studied , and the pile response to a harmonic load is obtained in a closed form and used to define complex stiffness at the pile head . semi - analytical solution of the velocity response in time domain subjected to a semi - sine wave exciting force is also given
5.
The framework and results of this study is thus summarized as follows : 1 . analyzing the effect of the nonlinear parameters on seismic response . so far the g / g _ max - ( transient dynamical shear modulus over the maximum shear modulus vs . shear strain ) and the - ( equivalent shear hysteretic damping ration vs . shear strain ) curves are widely employed in the experimental method in studying soil dynamic property , supposing under equiamplitude cyclic load
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