TY - GEN
T1 - Numerical Simulation of Dynamic Centrifuge Tests on Concrete Faced Rockfill Dam
AU - Acar, Muhsin
AU - Numanoglu, Ozgun A.
AU - Hashash, Youssef M.A.
N1 - Funding Information:
The authors are grateful to Professor Dong-Soo Kim of the Korea Advanced Institute of Science and Technology, Republic of Korea for providing the data recorded during the centrifuge tests. The financial support by the General Directorate of State Hydraulic Works of Turkey for this work is also sincerely appreciated.
Publisher Copyright:
© 2019 American Society of Civil Engineers.
PY - 2019
Y1 - 2019
N2 - Seismic behavior of concrete faced rockfill dams (CFRDs) has not been sufficiently examined due to limited measured response in the field. This study presents results of numerical experiments (finite element analyses), which investigate effects of hysteretic damping and interface between rockfill and concrete face on the seismic behavior of CFRDs. The analyses use a recently developed, three-dimensional, distributed element plasticity soil model (I-soil) which allows flexible control over hysteretic behavior and can model both Masing and user-defined non-Masing type un/reloading. Numerical results are compared with centrifuge test data performed by others, including spectral response, and bending moment increments on the concrete face. The best estimates were obtained using non-Masing type un/reloading rules along with frictional interaction between concrete face and rockfill interface. These results suggest that the seismic response of CFRDs can be better simulated with proper characterization of hysteretic damping and interaction between different components of the dam body.
AB - Seismic behavior of concrete faced rockfill dams (CFRDs) has not been sufficiently examined due to limited measured response in the field. This study presents results of numerical experiments (finite element analyses), which investigate effects of hysteretic damping and interface between rockfill and concrete face on the seismic behavior of CFRDs. The analyses use a recently developed, three-dimensional, distributed element plasticity soil model (I-soil) which allows flexible control over hysteretic behavior and can model both Masing and user-defined non-Masing type un/reloading. Numerical results are compared with centrifuge test data performed by others, including spectral response, and bending moment increments on the concrete face. The best estimates were obtained using non-Masing type un/reloading rules along with frictional interaction between concrete face and rockfill interface. These results suggest that the seismic response of CFRDs can be better simulated with proper characterization of hysteretic damping and interaction between different components of the dam body.
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U2 - 10.1061/9780784482100.012
DO - 10.1061/9780784482100.012
M3 - Conference contribution
AN - SCOPUS:85063498923
SN - 9780784482100
T3 - Geotechnical Special Publication
SP - 108
EP - 117
BT - Geotechnical Special Publication
A2 - Meehan, Christopher L.
A2 - Kumar, Sanjeev
A2 - Pando, Miguel A.
A2 - Coe, Joseph T.
PB - American Society of Civil Engineers
T2 - 8th International Conference on Case Histories in Geotechnical Engineering: Earthquake Engineering and Soil Dynamics, Geo-Congress 2019
Y2 - 24 March 2019 through 27 March 2019
ER -