000011370 001__ 11370
000011370 005__ 20141205155904.0
000011370 04107 $$aeng
000011370 046__ $$k2008-10-12
000011370 100__ $$aPoursartip, Babak
000011370 24500 $$aModal Analysis of Concrete Arch Dams in Time Domain Including Dam-Reservoir Interaction

000011370 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011370 260__ $$b
000011370 506__ $$arestricted
000011370 520__ $$2eng$$aIn this article, two approaches are studied for modal analysis of concrete arch dams in time domain. The results of these investigations are compared against the direct approach which is envisaged as an exact method. The decoupled modal approach relies on independent modes of the dam and the reservoir, and coupled modal approach, which employs mode shapes of coupled system. An asymmetric eigenvalue problem is required to be solved to calculate the coupled modes, which makes the programming very complicated. However, in the decoupled modal approach, a symmetric eigenvalue problem is employed which is resulted by elimination of asymmetric parts of the initial equation. The mode shapes extracted through this problem are utilized to calculate the response. The analysis of Shahid Rajaee concrete arch dam is considered as a controlling example, and the number of required mode shapes for an accurate analysis is compared for these two modal approaches. Dam-reservoir interaction, Coupled modal approach, Decoupled modal approach

000011370 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011370 653__ $$a

000011370 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011370 720__ $$aPoursartip, Babak$$iLotfi, Vahid
000011370 8560_ $$ffischerc@itam.cas.cz
000011370 8564_ $$s445726$$uhttps://invenio.itam.cas.cz/record/11370/files/S13-061.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S13-061.
000011370 962__ $$r9324
000011370 980__ $$aPAPER