Dynamic impedance of piles in visco-elastic material considering axial loads

  • Jiang Jian-guo Email author
  • Zhou Xu-hong 
  • Zhang Jia-sheng 
Geology, Mining And Civil Engineering


The dynamic impedance function of pile in visco-elastic material considering axial loads under lateral dynamic force was analyzed, and the beam dynamic differential equation was used to induce the dynamic impedance function. After analyzing the edge conditions, the dynamic impedance functions were deduced. Contrasted with the result that does not consider axial loads, the axial loads have obvious influence on the dynamic impedance function. And the results show that the dimensionless parameter of the dynamic impedance will change from 6% to 9% when considering axial loads, and dimensionless parameter of the dynamic impedance of the coupling horizontal-sway will increase by 31%.

Key words

impedance function dynamic analysis axial loads 

CLC number



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Copyright information

© Central South University 2005

Authors and Affiliations

  • Jiang Jian-guo 
    • 1
    Email author
  • Zhou Xu-hong 
    • 2
  • Zhang Jia-sheng 
    • 1
  1. 1.School of Civil Engineering and ArchitectureCentral South UniversityChangshaChina
  2. 2.School of Civil Engineering and ArchitectureChang’an UniversityXi’anChina

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