A centrifuge-based experimental verification of Soil-Structure Interaction effects

چکیده مقاله :
A series of prototype dynamic centrifuge experiments is carried out to investigate the influence of soil properties
and structural parameters on the Soil Structure Interaction (SSI) effect. Established analytical models are herein
experimentally verified, and are proven accurate in estimating the system's natural frequency characteristics. It
is observed that period elongation is strongly correlated to the relative superstructure-foundation stiffness.
Although the present study deals exclusively with the small-strain near-linear range, the experimental response
indicates occurrence of nonlinearity. The identified damping results remarkably larger than its analytical estimate and proves highly strain-dependent, raising questions on the reliability of existing analytical methods in
capturing the actual dissipation mechanisms. An extended experimental dataset is formed under realistic stress
and strain soil conditions, and is implemented, for the first time, for verification of existing analytical models
offering valuable insight into the theory and serving as a benchmark for engineering practice.

توضیحات تکمیلی :

مقاله ISI انگلیسی اصلی
سال انتشار:2017
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 14 صفحه

نویسندگان/توضیحات : مقاله ISI سال انتشار2017 \ Panagiotis Martakisa , Damoun Taeseria , Eleni Chatzia,⁎ , Jan Laueb
تاریخ ارسال : 1397/10/18
تعداد بازدید : 522
کلمات کلیدی : Soil Structure Interaction Centrifuge modeling Experimental verification Impulse response SDOF systems Modal identification Energy dissipation
تعداد صفحات : 14
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