000018248 001__ 18248
000018248 005__ 20170118182214.0
000018248 04107 $$aeng
000018248 046__ $$k2017-01-09
000018248 100__ $$aChopra, Anil K.
000018248 24500 $$aA Finite Element Analysis Procedure for Earthquake Analysis of Dam-Water-Foundation Rock Systems: Validation of Method for 2D Problems

000018248 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018248 260__ $$b
000018248 506__ $$arestricted
000018248 520__ $$2eng$$aAn extended finite element analysis procedure (extended FEM) is presented for performing nonlinear earthquake analysis of concrete dams. The procedure overcomes the limitations of the "standard" FEM by applying wave-transmitting boundaries to simulate the semi-unbounded reservoir and foundation-rock, and specifying at these boundaries earthquake-induced tractions and pressure gradients determined from the design ground motion specified at a control point at the free surface. The procedure is validated numerically by computing the dynamic response of an idealized two-dimensional dam-water- foundation rock system and comparing against benchmark results obtained using the substructure method, in which the semi-unbounded fluid and foundation-rock domains are modeled rigorously. The results demonstrate that the extended FEM is an accurate, efficient and versatile analysis procedure that allows for modeling of arbitrary geometry and material behavior of dam-water-foundation rock systems without introducing unrealistic assumptions of massless rock or incompressible water sometimes used in engineering practice. 

000018248 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018248 653__ $$aConcrete dams; dam-water-foundation rock interaction; nonlinear analysis; wave-transmitting boundaries

000018248 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018248 720__ $$aChopra, Anil K.$$iLøkke, Arnkjell
000018248 8560_ $$ffischerc@itam.cas.cz
000018248 8564_ $$s832238$$uhttps://invenio.itam.cas.cz/record/18248/files/1099.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1099.
000018248 962__ $$r16048
000018248 980__ $$aPAPER