Three-dimensional nonlinear analysis for seismic soil–pile-structure interaction

Maheshwari, B. K.; Truman, Kevin Z.; Naggar, M. Hesham El; Gould, Phillip L.

doi:10.1016/j.soildyn.2004.01.001

Cited by 110 publications

(27 citation statements)

References 19 publications

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“…In the 1995 Kobe earthquake (M = 6.9) the interaction effect played a vital role in the sudden increase of natural period where the collapse and overturning of Hanshin expressway is observed. In same earthquake, Daikai station failed due to poor load transfer mechanisms due to interface effects [17]. In the 2010 Haiti earthquake (M = 7), the collapse of several buildings has observed because of deeper rotation failure due to movement of soils.…”

Section: Introductionmentioning

confidence: 99%

An efficient approach for assessing the seismic soil structure interaction effect for the asymmetrical pile group

Badry

Satyam

2016

Innov. Infrastruct. Solut.

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All of the civil engineering structures involve some type of structural element which is in direct contact with soil. To estimate the accurate response of the superstructure it is necessary to consider the response of the soil supporting structure, and is well explained in the soil structure interaction analysis. Many attempts have been made to model the SSI problem numerically; however the soil nonlinearity, foundation interfaces and boundary conditions make the problem more complex and computationally costlier. To overcome this problem the attempt has been made to optimize the computational efficiency by applying the equivalent pier method for the deep foundation system. In this research paper the L-shape 11 storey building supported by a pile foundation with homogeneous local soil condition is analyzed for dynamic loading including the SSI effect. The significance of the SSI effect has been studied by comparing the responses of the system for fixed base and flexible base condition. A new approach has been proposed to provide simplicity in SSI modeling and reduce the computational cost (both memory and time wise). The approach includes the applicability of the equivalent pier method for the asymmetrical pile groups system, including SSI effect of the pile foundation system. The approach is validated for group effect and found that equivalent pile method can successfully be adopted and helps to reduce the computational cost of SSI problem. To understand the applicability of EPM approach, the parametric study has been carried out for different input of earthquakes and soil types. In accordance with this the three distinct earthquakes, including 1995 Chamba (M = 4.9), 1999 Uttarkashi (M = 6.9) and 2001 Bhuj (M = 7.7) and soil types including cohesive, cohesionless and C-Phi soils have been considered for SSI analysis. The study observed that, earthquake magnitude and soil type shows the major impact on the response of the SSI system.

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Section: Introductionmentioning

confidence: 99%

An efficient approach for assessing the seismic soil structure interaction effect for the asymmetrical pile group

Badry

Satyam

2016

Innov. Infrastruct. Solut.

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“…The finite element method (FEM) is a very powerful computationally efficient method to analyze nonlinear dynamic response of soil-pile system considering both material nonlinearity and complex soil-pile interaction due to separation and slippage. A few investigators used a 3-D finite element model to obtain the pile response under dynamic loading considering the effects of material and interface nonlinearities on the dynamic behavior of single and group piles: Lewis et al [9] and Maheshwari et al [10,11]. Padron et al [12,13] applied coupled BEM-FEM model to study dynamic response of pile foundation.…”

Section: Introductionmentioning

confidence: 99%

A numerical and experimental study of hollow steel pile in layered soil subjected to lateral dynamic loading

Bhowmik

Baidya

DasGupta

2013

Soil Dynamics and Earthquake Engineering

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a b s t r a c tThe present study aims at investigating the nonlinear behavior of single hollow pile in layered soil subjected to varying levels of horizontal dynamic load. A finite element model has been developed using commercially available FEM based software. Mohr-Coulomb plasticity model is used to simulate the soil plasticity whereas the pile-material is idealized as elastic. Numerical results are validated comparing with the experimental results. The experimental investigations were carried out in the field located at IIT Kharagpur. Two types of motion: horizontal and rocking are studied. The effects of various influencing parameters, namely, exciting moment, length and diameter of the pile etc. on the nonlinear dynamic response of piles are investigated. It is found that separation of pile from the surrounding soil considerably affects the resonance frequency and amplitude of the pile foundations.

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“…In order to satisfactorily reproduce such SSI effects computationally, it is often necessary to model a large domain of the soil surrounding the structure of interest. With the developments in material modeling techniques and high-speed efficient computers, linear and nonlinear three-dimensional (3D) finite-element (FE) methods are becoming a promising technique for understanding the involved SSI mechanisms (Chae et al 2004;Dodds 2005;Elgamal et al 2008Elgamal et al , 2009bElgamal et al , 2010Elgamal and Lu 2009;Lu et al 2010;Maheshwari et al 2004;Muqtadir and Desai 1986). In particular, special attention is given to the soil-pile response mechanisms and the pile group interaction effects.…”

Section: Introductionmentioning

confidence: 99%

Lateral Load on a Large Pile Group: A 3D Finite Element Model

Ning

Elgamal

2013

Iacge 2013

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Practice shows that the analysis of laterally loaded pile foundations is critically important. For years, numerous experimental, theoretical and numerical investigations have been conducted to predict the behavior of such systems. In this paper, we are describing a computational study to investigate large pile-ground system response under lateral load based on 3 dimensional (3D) OpenSees finite element modeling. Primarily, pile group behavior in nonlinear soil with and without a tensioncutoff logic is discussed. Distribution of load within the pile group is analyzed and the group interaction effects are examined. A robust and versatile framework (OpenSeesPL, http://cyclic.ucsd.edu/openseespl/) for computational analysis of pileground systems is employed to facilitate the pre-and post-processing phases. Further validation and calibration of the analysis framework may be conducted with the aid of case histories and experimental data.

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Three-dimensional nonlinear analysis for seismic soil–pile-structure interaction

Cited by 110 publications

References 19 publications

An efficient approach for assessing the seismic soil structure interaction effect for the asymmetrical pile group

An efficient approach for assessing the seismic soil structure interaction effect for the asymmetrical pile group

A numerical and experimental study of hollow steel pile in layered soil subjected to lateral dynamic loading

Lateral Load on a Large Pile Group: A 3D Finite Element Model

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