Influence of soil–pile interface characteristics on the seismic response of single pile foundations: shaking table testing and numerical simulation

Aghamolaei, Milad; Saeedi Azizkandi, Alireza; Abolhasanpoor, Ali; Hashemi, Sara

doi:10.1007/s11440-023-01955-9

Cited by 3 publications

(1 citation statement)

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“…Many scholars have used OpenSees for years to approximate a solution to different SPSI problems [11][12][13][14][15][16][17]. In addition, several have validated SPSI results either via centrifuge, shaking table, or various field tests [18][19][20][21][22][23][24][25][26]. Based on the majority of referenced research, a continuum model must be constructed using a direct approach to incorporate all components of SPSI effects, which include (1) kinematic interaction, (2) inertial interaction, and (3) subgrade impedances with a fully coupled (u-P formulation) system.…”

Section: Introductionmentioning

confidence: 99%

Numerical Validation of Fully Coupled Nonlinear Seismic Soil–Pile–Structure Interaction

Çetindemir,

Zülfikar

2024

Buildings

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While many researchers have broadly studied soil–structure interaction (SSI) problems to comprehend SSI effects on the overall system’s behavior, some critical numerical modeling issues have not been sufficiently investigated to achieve the most accurate results. Furthermore, most scholars have not provided detailed explanations of the validation process for their proposed numerical models. Modeling pile foundations in a three-dimensional (3D) continuum system in a fully coupled manner is often challenging for engineers who do not specialize in structural and geotechnical earthquake engineering, as it can be very time-consuming and complicated. Therefore, this work aims to validate a finite element model of seismic soil–pile–structure interaction (SPSI) problems in a continuum soil body by comparing the results of numerical models with those of a centrifuge test and computed numerical simulations available in the literature. In this regard, several newly developed elements in OpenSees (Version 3.6.0) are tested. The results of this work demonstrate a closer alignment with prior experimental research findings. It is believed that providing detailed numerical modeling and validation processes will assist researchers in better understanding crucial issues in modeling soil–pile–structure interaction problems.

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