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F. Maksimov¹, A. Contento², B. Briseghella² and P. Cacciola²

¹School of Architecture, Technology and Engineering, University of Brighton, UK
²College of Civil Engineering, Fuzhou University, China

F. Maksimov, A. Contento, B. Briseghella, P. Cacciola, "Influence of Soil Particle Distribution on the Steady-State Harmonic Response of Nonlinear Soil-Structure Interaction Systems", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 6.2, 2025,

Keywords: nonlinear soil-structure interaction, distinct element method, soil uncertainty, soil particle distribution, harmonic balance, steady state response.

Abstract

This study investigates the steady-state harmonic response of nonlinear soil–structure interaction (SSI) systems. A lumped parameter model is adopted, in which the soil is represented by nonlinear springs and dashpots to capture its dynamic behaviour. Using the harmonic balance method, amplitude-dependent equivalent stiffness and damping parameters are derived to characterise the nonlinear SSI response. A Monte Carlo framework is employed to determine these amplitude-dependent properties across multiple soil configurations generated via the Discrete Element Method (DEM), accounting for the variability in particle distribution. The influence of this variability on the dynamic response of structures is examined through statistical analyses of the equivalent fundamental period and damping, both as functions of excitation amplitude. The methodology is demonstrated for two soil types: conventional gravel and a more innovative rubber–soil mixture.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 10 PROCEEDINGS OF THE EIGHTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 6.2 Influence of Soil Particle Distribution on the Steady-State Harmonic Response of Nonlinear Soil-Structure Interaction Systems F. Maksimov¹, A. Contento², B. Briseghella² and P. Cacciola² ¹School of Architecture, Technology and Engineering, University of Brighton, UK ²College of Civil Engineering, Fuzhou University, China Full Bibliographic Reference for this paper F. Maksimov, A. Contento, B. Briseghella, P. Cacciola, "Influence of Soil Particle Distribution on the Steady-State Harmonic Response of Nonlinear Soil-Structure Interaction Systems", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 6.2, 2025, Keywords: nonlinear soil-structure interaction, distinct element method, soil uncertainty, soil particle distribution, harmonic balance, steady state response. Abstract This study investigates the steady-state harmonic response of nonlinear soil–structure interaction (SSI) systems. A lumped parameter model is adopted, in which the soil is represented by nonlinear springs and dashpots to capture its dynamic behaviour. Using the harmonic balance method, amplitude-dependent equivalent stiffness and damping parameters are derived to characterise the nonlinear SSI response. A Monte Carlo framework is employed to determine these amplitude-dependent properties across multiple soil configurations generated via the Discrete Element Method (DEM), accounting for the variability in particle distribution. The influence of this variability on the dynamic response of structures is examined through statistical analyses of the equivalent fundamental period and damping, both as functions of excitation amplitude. The methodology is demonstrated for two soil types: conventional gravel and a more innovative rubber–soil mixture. download the full-text of this paper (PDF, 12 pages, 1001 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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