• effect of dam-reservoir interaction on modal characteristics of arch dams due to weak and strong ground motions

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1393/11/01
    • تاریخ انتشار در تی پی بین: 1393/11/01
    • تعداد بازدید: 872
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     dam-reservoir interaction affects modal characteristics of dam but its effect’s amount depends on amplitude of excitations and water level of reservoir. in this paper, effect of dam-reservoir interaction on modal characteristics of arch dams due to weak and strong ground motions investigated. finite element models of dam-reservoir-foundation and dam-foundation systems excited due to weak and strong ground motions and modal parameters of the system extracted by frequency domain decomposition (fdd) and continues wavelet transform (cwt) method based on dam responses to investigate the relation between amplitude of excitation and effect’s amount of dam-reservoir interaction on natural frequencies of the system. effect of reservoir water level on natural frequencies of the system is also investigated.

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