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Apr 26, 2012
Seismic Response Analysis of Concrete Dams Using Damage Mechanics and Creep Models
Authors: Niu Zhiguo [email protected], [email protected], You Ri [email protected], Hu Shaowei [email protected], and Lu Jun [email protected]Author Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
To evaluate the seismic safety of long-term operating concrete dams, we first obtain the stress and displacement relationship of concrete dams according to an evolution equation for creep damage in static condition. Then, based on the static results, the bilinear damage evolution model is adopted to combine with viscous-spring artificial boundary to investigate the failure pattern of concrete dams under the action of earthquake. This method proposed in this study can consider the effect of creep-related degradation on the safety assessment of long-term operating concrete dams. Finally, the method is validated by a comparison with the existing project data, and the results show that the method exhibits reasonable and important improvement for the existing seismic safety evaluation of large concrete dams.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Department of Materials and Structural Engineering, Nanjing Hydraulic Research Institute, 210024, China. E-mail: [email protected], [email protected]
Department of Materials and Structural Engineering, Nanjing Hydraulic Research Institute, 210024, China. E-mail: [email protected]
Department of Materials and Structural Engineering, Nanjing Hydraulic Research Institute, 210024, China. E-mail: [email protected]
Department of Materials and Structural Engineering, Nanjing Hydraulic Research Institute, 210024, China. E-mail: [email protected]
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