000010099 001__ 10099
000010099 005__ 20141205154144.0
000010099 04107 $$aeng
000010099 046__ $$k2008-10-12
000010099 100__ $$aGogoi, Indrani
000010099 24500 $$aA Novel Procedure for Determination of Hydrodynamic Pressure along Upstream Face of Dams Due to Earthquakes

000010099 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010099 260__ $$b
000010099 506__ $$arestricted
000010099 520__ $$2eng$$aThe estimation of hydrodynamic pressures along the upstream face of the dam is a critical parameter for the accurate analysis and design of a dam. The accurate estimation of the hydrodynamic pressures necessitates the consideration of interaction between the dam, the reservoir and the foundation. The interaction effects of the unbounded domain of the reservoir and the absorptive materials deposited at the reservoir bottom are frequency dependent which can be incorporated in a frequency domain procedure easily. But in a time domain procedure the frequency dependent interaction effects are lost. In a frequency domain solution, the excitation frequencies are extracted from the earthquake signal using a Fourier transformation, but do not give any information about how it varies with time. At the same time, the pressures obtained in a time domain solution do not give any information as to how the pressures may vary with different frequencies at every time instant during an earthquake. A short-time Fourier transform based formulation is presented in this paper to evaluate the hydrodynamic pressures in time domain to account for the frequency dependent interaction effects of the dam-reservoir system.

000010099 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010099 653__ $$aEarthquake, hydrodynamic pressure, infinite reservoir, truncation boundary, absorptive reservoir bottom, Short Time Fourier Transform 

000010099 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010099 720__ $$aGogoi, Indrani$$iMaity, Damodar
000010099 8560_ $$ffischerc@itam.cas.cz
000010099 8564_ $$s316409$$uhttps://invenio.itam.cas.cz/record/10099/files/S13-034.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S13-034.
000010099 962__ $$r9324
000010099 980__ $$aPAPER