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Kinematic seismic response of end-bearing piles to S-waves
https://orcid.org/0000-0002-8455-8946
Abstract In this paper we revisit the problem of modelling analytically the kinematic interaction between a single pile and its surrounding soil under the action of seismic shear waves, by means of a Tajimi-type continuum elastodynamic model in three dimensions. The model provides the steady-state kinematic response of a cylindrical end-bearing pile embedded in a homogeneous viscoelastic soil layer, subjected to vertically propagating harmonic S-waves. Results of the model are first validated against the results of numerical simulations, and the results of an existing, approximate solution. Accordingly, we employ the model in a parametric study, where we investigate the sensitivity of the seismic response of piles to certain key problem parameters, including pile slenderness, soil-pile relative stiffness, excitation frequency and fixity conditions at the pile head. The solution yields closed-form expressions for pile deformations and for the soil resistance developing on the pile, that do not require introducing fitting coefficients.
Highlights A Tajimi-type model of the seismic response of end-bearing piles is formulated. A closed-form expression of the kinematic Winkler modulus is obtained. The kinematic interaction between the pile and soil is studied parametrically. The effect of key problem parameters on the seismic response of piles is discussed.
Kinematic seismic response of end-bearing piles to S-waves
https://orcid.org/0000-0002-8455-8946
Abstract In this paper we revisit the problem of modelling analytically the kinematic interaction between a single pile and its surrounding soil under the action of seismic shear waves, by means of a Tajimi-type continuum elastodynamic model in three dimensions. The model provides the steady-state kinematic response of a cylindrical end-bearing pile embedded in a homogeneous viscoelastic soil layer, subjected to vertically propagating harmonic S-waves. Results of the model are first validated against the results of numerical simulations, and the results of an existing, approximate solution. Accordingly, we employ the model in a parametric study, where we investigate the sensitivity of the seismic response of piles to certain key problem parameters, including pile slenderness, soil-pile relative stiffness, excitation frequency and fixity conditions at the pile head. The solution yields closed-form expressions for pile deformations and for the soil resistance developing on the pile, that do not require introducing fitting coefficients.
Highlights A Tajimi-type model of the seismic response of end-bearing piles is formulated. A closed-form expression of the kinematic Winkler modulus is obtained. The kinematic interaction between the pile and soil is studied parametrically. The effect of key problem parameters on the seismic response of piles is discussed.
Kinematic seismic response of end-bearing piles to S-waves
https://orcid.org/0000-0002-8455-8946
Abstract In this paper we revisit the problem of modelling analytically the kinematic interaction between a single pile and its surrounding soil under the action of seismic shear waves, by means of a Tajimi-type continuum elastodynamic model in three dimensions. The model provides the steady-state kinematic response of a cylindrical end-bearing pile embedded in a homogeneous viscoelastic soil layer, subjected to vertically propagating harmonic S-waves. Results of the model are first validated against the results of numerical simulations, and the results of an existing, approximate solution. Accordingly, we employ the model in a parametric study, where we investigate the sensitivity of the seismic response of piles to certain key problem parameters, including pile slenderness, soil-pile relative stiffness, excitation frequency and fixity conditions at the pile head. The solution yields closed-form expressions for pile deformations and for the soil resistance developing on the pile, that do not require introducing fitting coefficients.
Highlights A Tajimi-type model of the seismic response of end-bearing piles is formulated. A closed-form expression of the kinematic Winkler modulus is obtained. The kinematic interaction between the pile and soil is studied parametrically. The effect of key problem parameters on the seismic response of piles is discussed.
Kinematic seismic response of end-bearing piles to S-waves
Zheng, Changjie (author) / Mylonakis, George (author) / Kouretzis, George (author) / Luan, Lubao (author)
2022-09-10
Article (Journal)
Electronic Resource
English
Axial kinematic response of end?bearing piles to P waves
| British Library Online Contents | 2013
Kinematic response of pipe piles subjected to vertically propagating seismic P-waves
| Springer Verlag | 2021
Kinematic response of pipe piles subjected to vertically propagating seismic P-waves
| Springer Verlag | 2021