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Evaluation of soil-structure interaction effects from system identification of structures subject to forced vibration tests

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dc.contributor.author Star, Lisa M.
dc.contributor.author Tileylioğlu, Salih
dc.contributor.author Givens, Michael J.
dc.contributor.author Mylonakis, George
dc.contributor.author Stewart, Jonathan P.
dc.date.accessioned 2020-03-16T13:06:14Z
dc.date.available 2020-03-16T13:06:14Z
dc.date.issued 2019-01
dc.identifier.citation Star, Lisa M...et al., "Evaluation of soil-structure interaction effects from system identification of structures subject to forced vibration tests", Soil Dynamics and Earthquake Engineering, Vol. 116, pp. 474-760, (2019). tr_TR
dc.identifier.issn 0267-7261
dc.identifier.uri http://hdl.handle.net/20.500.12416/2649
dc.description.abstract We describe procedures to evaluate the dynamic properties of test structures subject to forced vibration testing. We seek modal vibration periods and damping ratios corresponding to the actual flexible-based response of the structure (incorporating the effects of compliance in the soil medium supporting the foundation) and similar attributes for a fixed-base condition in which only the flexibility of the structure is represented. Our approach consists of using suitable input and output time series with conventional parametric system identification procedures, and as such extends previously developed procedures for use with earthquake recordings. We verify the proposed approach and demonstrate its application using data from two test structures supported on shallow foundations that have been used in forced vibration tests and that have recorded earthquakes. The structures were tested with and without braces to modify their stiffness and were deployed at two sites with different soil conditions. We analyze the results to evaluate experimental period lengthening ratios and foundation damping. The results show (1) strong increases in period lengthening and foundation damping with the wave parameter (dimensionless ratio of structure-to-soil stiffness), (2) compatibility between modal properties from forced vibration testing and earthquake excitation, (3) soil nonlinearity increases period lengthening and modifies foundation damping in a manner that can be reasonably captured in predictive models using equivalent-linear soil properties compatible with a proposed shear strain index. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier SCI LTD tr_TR
dc.relation.isversionof 10.1016/j.soildyn.2018.09.038 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Modal Identification tr_TR
dc.subject Seismic Response tr_TR
dc.subject Parameter-Identification tr_TR
dc.subject Realization-Algorithm tr_TR
dc.subject Foundation tr_TR
dc.subject Buildings tr_TR
dc.subject Model tr_TR
dc.subject Frequency tr_TR
dc.subject Frame tr_TR
dc.title Evaluation of soil-structure interaction effects from system identification of structures subject to forced vibration tests tr_TR
dc.type article tr_TR
dc.relation.journal Soil Dynamics and Earthquake Engineering tr_TR
dc.contributor.authorID 42369 tr_TR
dc.identifier.volume 116 tr_TR
dc.identifier.startpage 747 tr_TR
dc.identifier.endpage 760 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü tr_TR


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