Effect of dam-reservoir interaction on modal characteristics of arch dams due to weak and strong ground motions
محل انتشار: دهمین کنگره بین المللی مهندسی عمران
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,250
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شناسه ملی سند علمی:
ICCE10_0138
تاریخ نمایه سازی: 19 تیر 1394
چکیده مقاله:
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 andmodal 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
کلیدواژه ها:
نویسندگان
Reza Tarinejad
Assistant professor of civil engineering faculty of university of Tabriz, Tabriz, Iran
Arman Roshanravan
M.Sc. student of Civil engineering faculty of University of Tabriz, Tabriz, Iran
Hesaneh Ghanbari
M.Sc. student of Civil engineering faculty of university of Tabriz, Tabriz, Iran
Hamed Mahjoob
M.Sc. student of Civil engineering faculty of University of Tabriz, Tabriz, Iran