考虑冻土效应的桥梁桩-土动力相互作用研究现状与展望
王万平, 张熙胤, 陈兴冲, 王义, 于生生

Study on dynamic interaction between bridge pile and soil with permafrost effect: status and review
Wanping WANG, Xiyin ZHANG, Xingchong CHEN, Yi WANG, Shengsheng YU
图3 Penzien模型及改进的集中质量模型30
Fig.3 The Penzien model (a) and the improved lumped mass model (b)