000010282 001__ 10282
000010282 005__ 20141205155710.0
000010282 04107 $$aeng
000010282 046__ $$k2008-10-12
000010282 100__ $$aHuang, Junjie
000010282 24500 $$aNonlinear Analysis of a Dam-Reservoir-Foundation System under Spatially Variable Seismic Excitations

000010282 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010282 260__ $$b
000010282 506__ $$arestricted
000010282 520__ $$2eng$$aThe safety and stability of concrete gravity dams under strong earthquake shaking has long been an issue of great practical importance, and has attracted and continues to attract considerable research interest. The evaluation of their response to earthquakes requires special attention due to their unique characteristics: (i) Nonlinear behavior of the concrete and foundation rock; (ii) Interaction between the dam, the reservoir, and the foundation; (iii) Unbounded feature of the reservoir and foundation domain; and (iv) Spatial variation of seismic ground motions over distances comparable to the base dimensions of the dam. This paper addresses these issues by developing a computational procedure for studying the effects of the spatial variability of the earthquake motions on the response of concrete gravity dams using the finite element method. The proposed scheme is illustrated with the Koyna Dam in India. The primary results of the evaluation show that diverse response patterns occur when the excitation is uniform or nonuniform. The major differences in the patterns are caused by the pseudo-static response that is induced only by the nonuniform excitations.

000010282 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010282 653__ $$adam-reservoir-foundation interaction, finite element method, infinite elements, spatially variable ground motion, nonlinear dam response

000010282 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010282 720__ $$aHuang, Junjie$$iZerva, Aspasia
000010282 8560_ $$ffischerc@itam.cas.cz
000010282 8564_ $$s289284$$uhttps://invenio.itam.cas.cz/record/10282/files/S13-009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S13-009.
000010282 962__ $$r9324
000010282 980__ $$aPAPER