Analytical model of isolated bridges considering soil-pile-structure interaction for moderate earthquakes

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dc.authoridShamsi, Mohammad/0000-0002-8401-6549
dc.contributor.authorShamsi, Mohammad
dc.contributor.authorMoshtagh, Ehsan
dc.contributor.authorVakili, Amir H.
dc.date.accessioned2024-09-29T16:05:17Z
dc.date.available2024-09-29T16:05:17Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe coupled soil-pile-structure seismic response is recently in the spotlight of researchers because of its extensive applications in the different fields of engineering such as bridges, offshore platforms, wind turbines, and buildings. In this paper, a simple analytical model is developed to evaluate the dynamic performance of seismically isolated bridges considering triple interactions of soil, piles, and bridges simultaneously. Novel expressions are proposed to present the dynamic behavior of pile groups in inhomogeneous soils with various shear modulus along with depth. Both cohesive and cohesionless soil deposits can be simulated by this analytical model with a generalized function of varied shear modulus along the soil depth belonging to an inhomogeneous stratum. The methodology is discussed in detail and validated by rigorous dynamic solution of 3D continuum modeling, and time history analysis of centrifuge tests. The proposed analytical model accuracy is guaranteed by the acceptable agreement between the experimental/numerical and analytical results. A comparison of the proposed linear model results with nonlinear centrifuge tests showed that during moderate (frequent) earthquakes the relative differences in responses of the superstructure and the pile cap can be ignored. However, during strong excitations, the response calculated in the linear time history analysis is always lower than the real conditions with the nonlinear behavior of the soil-pile-bridge system. The current simple and efficient method provides the accuracy and the least computational costs in comparison to the full three-dimensional analyses.en_US
dc.description.sponsorshipUniversity of Hormozgan; University of Garmsaren_US
dc.description.sponsorshipThe authors would like to thank the University of Hormozgan, and the University of Garmsar for their partial support allocated to this research study.en_US
dc.identifier.doi10.12989/gae.2023.34.5.529
dc.identifier.endpage545en_US
dc.identifier.issn2005-307X
dc.identifier.issn2092-6219
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85168561114en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage529en_US
dc.identifier.urihttps://doi.org/10.12989/gae.2023.34.5.529
dc.identifier.urihttps://hdl.handle.net/20.500.14619/6619
dc.identifier.volume34en_US
dc.identifier.wosWOS:001064929200005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTechno-Pressen_US
dc.relation.ispartofGeomechanics and Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbridgesen_US
dc.subjectdynamic responseen_US
dc.subjectinhomogeneous soilsen_US
dc.subjectpile groupen_US
dc.subjectsoil-structure interactionen_US
dc.titleAnalytical model of isolated bridges considering soil-pile-structure interaction for moderate earthquakesen_US
dc.typeArticleen_US

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