Deconvolved Stochastic Seismic Excitation Effect on the Nonlinear Response of Asphaltic Lining Dam-Foundation Interaction Systems
ADVANCES IN STRUCTURAL ENGINEERING, vol.13, no.1, pp.127-137, 2010 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 13 Issue: 1
- Publication Date: 2010
- Journal Name: ADVANCES IN STRUCTURAL ENGINEERING
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.127-137
- Keywords: deconvolved acceleration, interface finite element, spatially varying ground motion, stochastic analysis, asphaltic lining dam, dam-foundation interaction, equivalent linear method, FACED ROCKFILL DAMS, EARTHQUAKE INPUT MECHANISMS, GROUND MOTION, DYNAMIC-RESPONSE, FILL DAMS, TIME
- Ondokuz Mayıs University Affiliated: No
Abstract
The effect of the deconvolved stochastic seismic excitation on the nonlinear response of dam-foundation interaction systems is investigated in this paper using the equivalent linear method. For this purpose, three different earthquake input mechanisms are used: the standard-rigid-base input model, the massless-foundation input model and the deconvolved-base-rock input model. The spatial variability of ground motion including the incoherence and wave-passage effects are taken into account in the analyses. The limit earthquake in 1999 is selected as sample ground motion. Two-dimensional interface finite elements are used between the dam-soil deposit and the asphalt face and also between the foundation-soil deposit and the cutoff wall. The mean of the absolute maximum displacement and stress values obtained from the three earthquake input models are compared with each other.