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dc.contributor.authorLiou, Gin-Showen_US
dc.contributor.authorChung, I. L.en_US
dc.date.accessioned2014-12-08T15:09:44Z-
dc.date.available2014-12-08T15:09:44Z-
dc.date.issued2009-04-01en_US
dc.identifier.issn0267-7261en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.soildyn.2008.07.004en_US
dc.identifier.urihttp://hdl.handle.net/11536/7453-
dc.description.abstractA numerical scheme is developed in the paper for Calculating torsional, vertical, horizontal, coupling and rocking impedances in frequency domain for axial-symmetric foundations embedded in layered media. In the scheme, the whole soil domain is divided into interior and exterior domains. For the exterior domain, the analytic solutions with unknown coefficients are obtained by solving three-dimensional (31)) wave equations in cylindrical coordinates satisfying homogeneous boundary conditions. For the interior domain, the analytical solutions are also obtained by solving the same 3D wave equations satisfying the homogeneous boundary conditions and the prescribed boundary conditions. The prescribed conditions are the interaction tractions at the interfaces between embedded foundation and surrounding soil. The interaction tractions are assumed to be piecewise linear. The piecewise linear tractions at the bottom surface of foundation will be decomposed into a series of Bessel functions which can be easily fitted into the general solutions of wave equations in cylindrical coordinates. After all the analytic solutions with unknown coefficients for both interior and exterior domains are found, the variational principle is employed using the continuity conditions (both displacements and stresses) at the interfaces between interior and exterior domains, interior domain and foundation, and exterior domain and foundation to find impedance functions. Some numerical results of torsional. vertical, horizontal, coupling and rocking impedances with different embedded depths will be presented and comments on the numerical scheme will be given. (c) 2008 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectWave propagationen_US
dc.subjectImpedance matrixen_US
dc.subjectDynamic stiffnessen_US
dc.subjectSoil-structure interactionen_US
dc.titleImpedance matrices for circular foundation embedded in layered mediumen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.soildyn.2008.07.004en_US
dc.identifier.journalSOIL DYNAMICS AND EARTHQUAKE ENGINEERINGen_US
dc.citation.volume29en_US
dc.citation.issue4en_US
dc.citation.spage677en_US
dc.citation.epage692en_US
dc.contributor.department土木工程學系zh_TW
dc.contributor.departmentDepartment of Civil Engineeringen_US
dc.identifier.wosnumberWOS:000263854000008-
dc.citation.woscount2-
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