Seismic Response Analysis on Pile-Soil Couple System by Lumped Mass Method
Pile is widely used as deep foundation in civil engineering. The dynamic interaction between pile and soil is an important problem in the field of soil-structure interaction. This paper established a model to calculate the seismic response of pile-soil couple system. In this model, pile and soil are regarded as lumped mass, soil was divided into two parts: the far region soil and near pile region soil. These two parts are simulated by different mechanical characters. A differential equation of motion of pile-soil couple system was established in the paper, this differential equation can be solved by Wilson-θ method. An example was introduced to study the behavior of pile-soil couple system.
L. Q. Wang and Y. Z. Wang, "Seismic Response Analysis on Pile-Soil Couple System by Lumped Mass Method", Applied Mechanics and Materials, Vols. 94-96, pp. 1420-1423, 2011