Nonlinear performance of a concrete gravity dam under a moderate seismic shock

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Tytuł: Nonlinear performance of a concrete gravity dam under a moderate seismic shock
Autor: Torba, Mariusz

Dulińska, Joanna

Boroń, Paweł
Opublikowane w: Vibroengineering Procedia
Numeracja: volume 13
Strony: 142-147
Data wydania: 2017
Wydawca: JVE International Ltd.
Język: angielski
ISSN: 2345-0533
DOI: 10.21595/vp.2017.19057
Słowa kluczowe: gravity dam, nonlinear seismic analysis, response spectrum, CDP model
Abstrakt: In the paper the dynamic analysis of a concrete gravity dam was presented. The paper concerns the nonlinear dynamic analysis of an existing concrete dam subjected to a real moderate seismic shock calculated by time history analysis. The linear, elastic, response spectrum analysis was also performed. The dynamic analysis was carried out for 2D and 3D numerical models of the dam. The 2D model represented the middle section of dam’s segment, whereas the 3D model reflected the whole segment. The concrete damage plasticity model (CDP) as a constitutive model of concrete was taking into account. Principal stresses, plastic deformations and degradation of the dam under the shock were evaluated. The results obtained for both models (2D and 3D) were compared. The 3D analysis led to the results revealing material degradation (tensile/compression cracks, stiffness degradation). Such behavior was not obtained for the 2D model.
Wydział: Wydział Inżynierii Lądowej
Licencja: Creative Commons; cc by 3.0 pl
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