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| Titel |
The effect of material properties on the seismic performance of Arch Dams |
| VerfasserIn |
B. Sevim |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 8 ; Nr. 11, no. 8 (2011-08-19), S.2253-2261 |
| Datensatznummer |
250009624
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| Publikation (Nr.) |
 copernicus.org/nhess-11-2253-2011.pdf |
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| Zusammenfassung |
| The paper investigates the effect of material properties on the seismic
performance of arch dam-reservoir-foundation interaction systems based on
the Lagrangian approach using demand-capacity ratios. Type-5 arch dam is
selected as a numerical application. The linear time history analyses of the
arch dam-reservoir-foundation interaction system are carried out for
different material properties. The foundation is taken into account as
massless; behaviour of the reservoir is assumed to be linearly elastic, inviscid
and irrotational. The north-south component of the Erzincan earthquake in 1992
is chosen as a ground motion. Dynamic equations of motions obtained from 3-D
finite element modelling of the coupled system are solved by using the Newmark
integration algorithm. The damage levels of the coupled system for the
different material properties are demonstrated by using demand-capacity
ratios and cumulative inelastic durations. The time histories and maximum
values of the displacements and principal stresses, and performance curves,
are obtained from linear analyses. It is clearly seen from the study that the
different material properties affect the seismic behaviour of the dam. |
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