000012334 001__ 12334
000012334 005__ 20141205160043.0
000012334 04107 $$aeng
000012334 046__ $$k2008-10-12
000012334 100__ $$aZhong, Hong
000012334 24500 $$aDamage Simulation of High Arch Dams in Earthquakes

000012334 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012334 260__ $$b
000012334 506__ $$arestricted
000012334 520__ $$2eng$$aA numerical approach based on elastic damage mechanics is presented to simulate the crack evolution and damage mode of arch dams subjected to earthquake shocks. The initial inhomogeneity of concrete at the mesoscopic scale is idealized with stochastic distribution of material properties of finite elements. Each element in the dam is considered to be homogenous and obeys simple constitutive relations of brittle concrete materials. When the elements reach the assumed failure criteria-Mohr-Coulomb Principle with tension cut-off, its elastic modulus is reduced to a sufficiently small value. Based on domain decomposition method, the proposed approach is programmed to parallel finite element codes PDPAD with MPI (Message Passing Interface) in FORTRAN 9.0 on Linux Redhat 9.0. The verification of a to-be-built arch dam in China shows that cracks in concrete are caused mainly by excessive tensile stress. Cracks initiated at the top of the central cantilever and were distributed at the vicinity of the dam crest, with the rest of dam remained intact. Numerical simulation obtained similar results with shaking table test, indicating that the proposed procedure and corresponding parallel program PDPAD could efficiently simulate seismic damage mode of arch dams.

000012334 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012334 653__ $$aseismic damage, mesoscopic inhomogeniety, parallel computing, arch dam

000012334 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012334 720__ $$aZhong, Hong$$iLin, Gao$$iLi, Hong J
000012334 8560_ $$ffischerc@itam.cas.cz
000012334 8564_ $$s505841$$uhttps://invenio.itam.cas.cz/record/12334/files/14-0087.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0087.
000012334 962__ $$r9324
000012334 980__ $$aPAPER