Damage assessment of a concrete arch dam through nonlinear incremental dynamic analysis

Alembagheri, M ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.soildyn.2012.09.010
  3. Publisher: 2013
  4. Abstract:
  5. Damage assessment of concrete arch dams is carried out through nonlinear Incremental Dynamic Analysis (IDA) of a typical arch dam. In this study the Morrow Point arch dam is subjected to a set of 12 three-component earthquakes each scaled to 12 increasing intensity levels. The dam-foundation interaction effects have been investigated by varying foundation's modulus of elasticity to be equal and half of dam concrete's modulus of elasticity. Damage propagation through the dam body is investigated and various IDA curves are created. The performance and various limit-states of the dam structure are examined based on the obtained results. Simple damage indices are proposed through comparison of response demands in earthquake analysis with the determined structural capacities. It was found that the proposed damage indices can properly indicate state of damage in the dam body
  6. Keywords:
  7. Concrete arch dams ; Dam body ; Dam concrete ; Dam structure ; Damage assessments ; Damage index ; Damage propagation ; Earthquake analysis ; Incremental dynamic analysis ; Intensity levels ; Interaction effect ; Structural capacities ; Three-component ; Arches ; Concrete construction ; Damage detection ; Earthquakes ; Elastic moduli ; Arch dams ; Arch ; Concrete ; Dam ; Damage mechanics ; Dynamic analysis ; Dynamic response ; Elastic modulus ; Elasticity ; Nonlinearity ; Performance assessment ; Structural analysis ; Structural response
  8. Source: Soil Dynamics and Earthquake Engineering ; Volume 44 , January , 2013 , Pages 127-137 ; 02677261 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0267726112002229