Kinematic Soil–Pile Interaction under Earthquake-Induced Nonlinear Soil and Pile Behavior: An Equivalent-Linear Approach

Stacul, Stefano; Rovithis, Emmanouil; Laora, Raffaele Di

doi:10.1061/(asce)gt.1943-5606.0002813

Cited by 9 publications

(13 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparison of the kinematic response factor calculated with the present solution against the results of Stacul et al 38 . .…”

Section: Verification and Parametric Analysismentioning

confidence: 76%

“…, 36 and the accuracy of the proposed solution was further justified by comparing with the existing rigorous solutions of Iovino et al 37 . and Stacul et al 38 . We have employed the solution to study the sensitivity of the seismic response of pipe piles to certain key problem parameters such as such as length of pile segment embedded in seawater, the relative stiffness of the pile and soil and the pile radius ratio.…”

Section: Discussionmentioning

confidence: 93%

“…To validate the proposed model, we compare results of the proposed model against the results of the authors’ previous work for the seismic response of onshore pipe piles to S‐waves, and further validate its results by comparing the presented solution against the solution proposed by Iovino et al 37 . and Stacul et al 38 . for fixed‐head solid piles.…”

Section: Introductionmentioning

confidence: 88%

See 2 more Smart Citations

Lateral kinematic response of offshore pipe piles to S‐wave seismic excitation

Zheng

Luo

Luan

2023

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

This paper presents an analytical study on the lateral kinematic response of offshore pipe piles subjected to vertically propagating S‐wave seismic excitation. Both the kinematic interaction of the pipe pile with the soil and seawater are considered. The lateral resistances of the outer and inner soil are obtained based on the confined viscoelastic dynamic continuum models, while the hydrodynamic pressures of the seawater are based on the inviscid incompressible fluid theory. The pile response is then obtained by utilizing the continuity condition at the soil‐pile and seawater‐pile interfaces along the pile shaft. The derived solution is employed to investigate the sensitivity of the seismic response of pipe piles to certain key problem parameters, such as length of pile segment embedded in seawater, the relative stiffness of the pile and soil and the pile radius ratio. We demonstrate that the partially embedded piles are much more flexible compared with fully embedded piles when subjected to S‐wave excitation, resulting more strong motion transferred to the superstructures and the existence of seawater will amplify the seismic responses of offshore pipe piles.

show abstract

“…Comparison of the kinematic response factor calculated with the present solution against the results of Stacul et al 38 . .…”

Section: Verification and Parametric Analysismentioning

confidence: 76%

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Lateral kinematic response of offshore pipe piles to S‐wave seismic excitation

Zheng

Luo

Luan

2023

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

“…and Mucciacciaro and Sica 31 shows that some deviations in comparisons with the calculated results utilizing nonlinear soil constitution will occur. However, the motivation of the proposed solution is to simulate the Rayleigh wave propagation across the unsaturated soil‐pile system and elastic soil constitution is sufficient enough. The soil surrounding the pile often shows longitudinal heterogeneity due to the historical sedimentation, so the variations of the soil layers’ properties would also contribute to the deviations 32,44 . Although this paper only gives the solution in single‐layer unsaturated soil, the non‐homogeneous soil solution can be further established by combining the mathematical model of local coordinate system with the boundary conditions of each soil layers.…”

Section: Mathematical Model and Assumptionsmentioning

confidence: 99%

“…The soil surrounding the pile often shows longitudinal heterogeneity due to the historical sedimentation, so the variations of the soil layers' properties would also contribute to the deviations. 32,44 Although this paper only gives the solution in single-layer unsaturated soil, the non-homogeneous soil solution can be further established by combining the mathematical model of local coordinate system with the boundary conditions of each soil layers.…”

Section: Mathematical Model and Assumptionsmentioning

confidence: 99%

Flexible support of a pile embedded in unsaturated soil under Rayleigh waves

Yang

Líu

et al. 2022

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

Under the action of Rayleigh waves, pile head is easy to rotate with a concrete pile cap, and pure fixed-head condition is rarely achieved, which is a common phenomenon for it usually occurs on the precast piles with insufficient anchorage. In addition, the propagation characteristics of Rayleigh wave have been changed significantly due to the existence of capillary pressure and the coupling between phases in unsaturated soil, which significantly affects the pile-soil interaction. In order to study the above problems, a coupled vibration model of unsaturated soil-pile system subjected to Rayleigh waves is established on the basis that the pile cap is equivalent to a rigid mass block. Meanwhile, the soil constitution is simplified to linear-elastic and small deformations are assumed to occur during the vibration phase of soil-pile system. Then, the horizontal dynamic response of a homogeneous free-field unsaturated soil caused by propagating Rayleigh waves is obtained by using operator decomposition theory and variable separation method. The dynamic equilibrium equation of a pile is established by using the dynamic Winkler model and the Timoshenko beam theory, and the analytical solutions of the horizontal displacement, rotation angle, bending moment and shear force of pile body are derived according to the boundary conditions of flexible constraint of pile top. Based on the present solutions, the rationality of the proposed model is verified by comparing with the previous research results. Through parametric study, the influence of rotational stiffness and yield bending moment of pile top on the horizontal dynamic characteristics of Rayleigh waves induced pile is investigated in detailed. The analysis results can be utilized for the seismic design of pile foundation under Rayleigh waves.

show abstract

A dynamic p–y model for piles embedded in cohesionless soils

Alver

Eseller-Bayat

2023

Bull Earthquake Eng

View full text Add to dashboard Cite

Kinematic Soil–Pile Interaction under Earthquake-Induced Nonlinear Soil and Pile Behavior: An Equivalent-Linear Approach

Cited by 9 publications

References 45 publications

Lateral kinematic response of offshore pipe piles to S‐wave seismic excitation

Lateral kinematic response of offshore pipe piles to S‐wave seismic excitation

Flexible support of a pile embedded in unsaturated soil under Rayleigh waves

A dynamic p–y model for piles embedded in cohesionless soils

Contact Info

Product

Resources

About