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دینامیک خاک و مهندسی زلزله 2011
جزئیات رویداد
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  • real-time dynamic hybrid testing for soil–structure interaction analysis

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1011
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     simulating dynamic soil–structure interaction (ssi) problems is a challenge when using a shaking table because of the semi-infinity of soil foundations. this paper develops real-time dynamic hybrid testing (rtdht) for ssi problems in order to consider the radiation damping effect of the semi-infinite soil foundation using a shaking table. based on the substructure concept, the superstructure is physically tested and the semi-infinite foundation is numerically simulated. thus, the response of the entire system considering the dynamic ssi is obtained by coupling the numerical calculation of the soil and the physical test of the superstructure. a two-story shear frame on a rigid foundation was first tested to verify the developed rtdht system, in which the top story was modeled as the physical substructure and the bottom story was the numerical substructure. the rtdht for a two-story structure mounted on soil foundation was then carried out on a shaking table while the foundation was numerically simulated using a lumped parameter model. the dynamic responses, including acceleration and shear force, were obtained under soft and hard soil conditions. the results show that the soil–structure interaction should be reasonably taken into account in the shaking table testing for structures.

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