Hou Xingmin - PH.D. Associate Professor of Yantan University, ۳۰ Qingquan Road, Yantai University, Yantai, ۲۶۴۰۰۵, China; Associate Professor of Institute of Engineering Mechanics (IEM), China Earthquake Administration(CEA), Harbin, ۱۵۰۰۸۰, China
Qu Shuying - antan University, Yantai ۲۶۴۰۰۵, China
Liu Wenyong - Administration and Service Center of Yantai Shifu Resident Area, Yantai ۲۶۴۰۰۱, China
Song Weiguo - First Construction Supervision Company LTD., Yantai ۲۶۴۰۰۰, China

The dynamic response of a 3-dimensional shaking-table foundation to steady-state forces is analyzed based on the exact numerical solution of rigid embedded rectangular foundation. A general lumped-parameter model is presented to correct the unreasonableness of traditional dynamic foundation design method, mass-spring-damping model, in which the spring and damping coefficients are constant in whole frequency band. The precision of general lumped parameter model introduced in this paper is higher than that of the traditional method for dynamic stiffness matrix of foundation is frequency-dependent. And the result shows the general lumped parameter model can be applied in dynamic foundation design.

Lumped parameter model, shake table foundation, dynamic response, dynamic stiffness matrix