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Soil structure interaction

About: Soil structure interaction is a research topic. Over the lifetime, 3653 publications have been published within this topic receiving 48890 citations.


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Journal ArticleDOI
TL;DR: In this paper, the physical modeling of a typical building frame resting on a pile foundation and embedded in a cohesive soil mass using complete three-dimensional finite element analysis is presented, where the elements of the superstructure frame and those of the pile foundation are descretized using twenty-node isoparametric continuum elements.
Abstract: The study deals with the physical modeling of a typical building frame resting on pile foundation and embedded in cohesive soil mass using complete three-dimensional finite element analysis. Two different pile groups comprising four piles (2X2) and nine piles (3 X3) are considered. Further, three different pile diameters along with the various pile spacings are considered. The elements of the superstructure frame and those of the pile foundation are descretized using twenty-node isoparametric continuum elements. The interface between the pile and pile and soil is idealized using sixteen-node isoparametric surface elements. The current study is an improved version of finite element modeling for the soil elements compared to the one reported in the literature (Chore and Ingle 2008). The soil elements are discretized using eight-, nine- and twelve-node continuum elements. Both the elements of superstructure and substructure (i.e., foundation) including soil are assumed to remain in the elastic state at all the time. The interaction analysis is carried out using sub-structure approach in the parametric study. The total stress analysis is carried out considering the immediate behaviour of the soil. The effect of various parameters of the pile foundation such as spacing in a group and number piles in a group, along with pile diameter, is evaluated on the response of superstructure. The response includes the displacement at the top of the frame and bending moment in columns. The soil-structure interaction effect is found to increase displacement in the range of 58 -152% and increase the absolute maximum positive and negative moments in the column in the range of 14-15% and 26-28%, respectively. The effect of the soil- structure interaction is observed to be significant for the configuration of the pile groups and the soil considered in the present study.

20 citations

Journal ArticleDOI
TL;DR: In this article, three variants of a two-dimensional (2D) model of a building supported by a rectangular, flexible foundation embedded in nonlinear soil are analyzed, and it is shown that the work spent for the development of nonlinear strains in the soil can consume a significant part of the input wave energy, and thus less energy is available for excitation of the building.

20 citations

Journal ArticleDOI
TL;DR: In this article, a four-step semi-analytical approach for analysis of dip-slip (normal and thrust) fault rupture propagation through sand, its emergence on the ground surface, and its interaction with raft foundations is presented.
Abstract: Over the past few decades, earthquake engineering research mainly focused on the effects of strong seismic shaking. After the 1999 earthquakes in Turkey and Taiwan, and thanks to numerous cases where fault rupture caused substantial damage to structures, the importance of faulting-induced deformation has re-emerged. This paper, along with its companion (Part II), exploits parametric results of fi nite element analyses and centrifuge model testing in developing a four-step semi-analytical approach for analysis of dip-slip (normal and thrust) fault rupture propagation through sand, its emergence on the ground surface, and its interaction with raft foundations. The present paper (Part I) focuses on the effects of faulting in the absence of a structure (i.e., in the free-fi eld). The semi-analytical approach comprises two-steps: the fi rst deals with the rupture path and the estimation of the location of fault outcropping, and the second with the tectonically- induced displacement profi le at the ground surface. In both cases, simple mechanical analogues are used to derive simplifi ed semi-analytical expressions. Centrifuge model test data, in combination with parametric results from nonlinear fi nite element analyses, are utilized for model calibration. The derived semi-analytical expressions are shown to compare reasonably well with more rigorous experimental and theoretical data, thus providing a useful tool for a fi rst estimation of near-fault seismic

20 citations

Journal ArticleDOI
TL;DR: In this article, the effects of wave passage on the torsional response of elastic buildings in the near-fault region were investigated, and it was shown that the response of the structure is assessed in terms of the relative twist between the top and the base of the superstructure.

20 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202378
2022179
2021209
2020174
2019182
2018190