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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6548
Title: Damage Index Evaluation of Concrete Gravity Dam Based on Hysteresis Behavior and Stiffness Degradation under Cyclic Loading
Authors: Ansari M.I.
Agarwal P.
Published in: International Journal of Structural Stability and Dynamics
Abstract: An assessment of seismic vulnerability of concrete gravity dams based on the fragility curves needs a well-defined damage index (DI) to define different states of damage. The DI formulation for other types of structures is not applicable to concrete gravity dams due to the change in failure mechanism. In this study, a definition of DI based on the factor of safety against sliding is attempted and correlated with the DI formulation based on the natural period of the structure and the maximum crest displacement with cumulative energy dissipation. The proposed DI relies on the nonlinear behavior of the concrete gravity dam model under cyclic testing. The hysteresis behavior is also verified through the finite element analysis by considering the damaged plasticity behavior of concrete. © 2017 World Scientific Publishing Company.
Citation: International Journal of Structural Stability and Dynamics (2017), 17(1): -
URI: https://doi.org/10.1142/S0219455417500092
http://repository.iitr.ac.in/handle/123456789/6548
Issue Date: 2017
Publisher: World Scientific Publishing Co. Pte Ltd
Keywords: Concrete gravity dam
damage index
damage state
hysteresis behavior
safety evaluation
ISSN: 2194554
Author Scopus IDs: 57188678491
7202300690
Author Affiliations: Ansari, M.I., Department of Earthquake Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Agarwal, P., Department of Earthquake Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Appears in Collections:Journal Publications [EQ]

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