000011046 001__ 11046
000011046 005__ 20141205155830.0
000011046 04107 $$aeng
000011046 046__ $$k2008-10-12
000011046 100__ $$aMoradloo, Javad
000011046 24500 $$aNonlinear Dynamic Analysis of Concrete Arch Dam Considering Large Displacements

000011046 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011046 260__ $$b
000011046 506__ $$arestricted
000011046 520__ $$2eng$$aIn this research, geometrically nonlinear dynamic analysis of arch concrete dam is attempted. At first, suitable models for large deformation analysis of massive plain concrete structures are investigated and by considering arch dam special features and properties, proper model for large displacement analysis is developed. A nonlinear analysis of the Morrow point arch dam using the Saint Venant–Kirchhoff model for large displacements is carried out under an intensive ground motion of order of 1.0g for the peak ground acceleration. Fluid-Structure interaction is modeled including water compressibility and reservoir bottom absorption although the foundation is considered as rigid. It was indicated that considering large deformation effects could reduces the displacement response of dam. This reduction of the peak response observed in this analysis was about 6 % in respect to that of the linear dynamic. On the other hand, large deformation effects reduce compressive stresses and increases tensile ones. Values of these changes are about 9 % for maximum compressive and 6% for maximum tensile stresses for the same ground motion level. Although it could be understood that the structural behavior of an arch dam does not allow large strains in a general manner, but one could not rule out the appearance of large displacements, specially under joint-opening. Thus it is suggested that for large seismic loads a consistent inclusion of this type of nonlinearity is necessary in order to grasp a proper image of concrete arch dam dynamic behavior.

000011046 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011046 653__ $$aArch Concrete Dam, Dynamic Analysis, Large Saint-Venant-Kirchhoff Model, Fluid-Structure Interaction Displacement, 

000011046 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011046 720__ $$aMoradloo, Javad$$iAhmadi, Mohammad Taghi$$iVahdani, Shahram
000011046 8560_ $$ffischerc@itam.cas.cz
000011046 8564_ $$s311701$$uhttp://invenio.itam.cas.cz/record/11046/files/05-01-0429.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0429.
000011046 962__ $$r9324
000011046 980__ $$aPAPER