000010989 001__ 10989
000010989 005__ 20141205155824.0
000010989 04107 $$aeng
000010989 046__ $$k2008-10-12
000010989 100__ $$aMirzabozorg, Hassan
000010989 24500 $$aSeismic Safety Evaluation of Concrete Dams Using Damage Mechanics Approach

000010989 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010989 260__ $$b
000010989 506__ $$arestricted
000010989 520__ $$2eng$$aConcerns on the seismic safety of concrete dams have been growing in recent years, This is partly because the population at risk in locations downstream of major dams continues to expand. Also it has increasingly become evident that the seismic design concepts in use at the time when most existing dams were build are inadequate. In this article, an anisotropic damage mechanics approach in Gaussian point level is introduced which models the static and dynamic behavior of mass concrete in 3D space. The proposed numerical model is able to consider non-uniform cracking within the cracked element in Gaussian points. The validity of the proposed model is considered using available experimental and theoretical results. The Morrow Point dam is analyzed including dam-reservoir interaction effects to consider the nonlinear seismic behavior of the dam. It is found that the resulting crack profiles are more localized than those resulting from the smeared crack approach. It can be concluded that the proposed damage mechanics model can be readily used in nonlinear static and dynamic analysis of complex structures and enables engineers to define the damage level of structures. KEYWORD: Concrete dams, Dam-reservoir interaction, Damage mechanics, Dynamic analysis, Non-uniform cracking

000010989 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010989 653__ $$a

000010989 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010989 720__ $$aMirzabozorg, Hassan$$iKianoush, Reza
000010989 8560_ $$ffischerc@itam.cas.cz
000010989 8564_ $$s652599$$uhttps://invenio.itam.cas.cz/record/10989/files/14-0237.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0237.
000010989 962__ $$r9324
000010989 980__ $$aPAPER