3D numerical simulation of seismic failure of concrete gravity dams considering base sliding
The sliding of dam base along dam-foundation rock interface during earthquake excitation can decrease the earthquake response of the dam. The present study reveals a numerical simulation of the seismic failure response for Oued Fodda concrete gravity dam, located in northwest of Algeria, considering...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2022-06-01
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| Series: | Modelling in Civil Environmental Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/mmce-2022-0010 |
| _version_ | 1797848556224118784 |
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| author | DJAMEL Ouzandja MOKHTAR Messaad |
| author_facet | DJAMEL Ouzandja MOKHTAR Messaad |
| author_sort | DJAMEL Ouzandja |
| collection | DOAJ |
| description | The sliding of dam base along dam-foundation rock interface during earthquake excitation can decrease the earthquake response of the dam. The present study reveals a numerical simulation of the seismic failure response for Oued Fodda concrete gravity dam, located in northwest of Algeria, considering base sliding. Nonlinear finite element analyses are performed for Oued Fodda damfoundation rock system. The Smeared crack approach is used to present cracking of dam concrete under the 1980 El Asnam earthquake (M7) using Willam and Warnke failure criterion. The hydrodynamic pressure of the reservoir water is modeled as added mass using the Westergaard approach. The sliding behavior of contractions joints is modeled by surface-surface contact elements that provide the friction contact at dam-foundation interface. Drucker-Prager model is considered for dam concrete in nonlinear analysis. According to numerical analyses, several cracks may appear due to tension particularly at middle upper parts located along the symmetry central axis of the dam in both upstream and downstream faces. Although the dam sliding on its foundation reduces the magnitude of principal tensile stresses in dam body; however, the reduction magnitude is generally not large enough to preclude the cracks propagation in dam body. |
| first_indexed | 2024-04-09T18:29:34Z |
| format | Article |
| id | doaj.art-37c6676c9f554613999d5915f1979ff3 |
| institution | Directory Open Access Journal |
| issn | 2784-1391 |
| language | English |
| last_indexed | 2024-04-09T18:29:34Z |
| publishDate | 2022-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Modelling in Civil Environmental Engineering |
| spelling | doaj.art-37c6676c9f554613999d5915f1979ff32023-04-11T17:19:27ZengSciendoModelling in Civil Environmental Engineering2784-13912022-06-01172435310.2478/mmce-2022-00103D numerical simulation of seismic failure of concrete gravity dams considering base slidingDJAMEL Ouzandja0MOKHTAR Messaad1Laboratory of Materials and Mechanics of Structures (LMMS), Department of Civil Engineering, Faculty of Technology, University of Msila, Msila, AlgeriaDepartment of Civil Engineering, University of Biskra, Biskra, AlgeriaThe sliding of dam base along dam-foundation rock interface during earthquake excitation can decrease the earthquake response of the dam. The present study reveals a numerical simulation of the seismic failure response for Oued Fodda concrete gravity dam, located in northwest of Algeria, considering base sliding. Nonlinear finite element analyses are performed for Oued Fodda damfoundation rock system. The Smeared crack approach is used to present cracking of dam concrete under the 1980 El Asnam earthquake (M7) using Willam and Warnke failure criterion. The hydrodynamic pressure of the reservoir water is modeled as added mass using the Westergaard approach. The sliding behavior of contractions joints is modeled by surface-surface contact elements that provide the friction contact at dam-foundation interface. Drucker-Prager model is considered for dam concrete in nonlinear analysis. According to numerical analyses, several cracks may appear due to tension particularly at middle upper parts located along the symmetry central axis of the dam in both upstream and downstream faces. Although the dam sliding on its foundation reduces the magnitude of principal tensile stresses in dam body; however, the reduction magnitude is generally not large enough to preclude the cracks propagation in dam body.https://doi.org/10.2478/mmce-2022-0010concrete gravity damslidingseismic failure3d seismic response. |
| spellingShingle | DJAMEL Ouzandja MOKHTAR Messaad 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding Modelling in Civil Environmental Engineering concrete gravity dam sliding seismic failure 3d seismic response. |
| title | 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| title_full | 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| title_fullStr | 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| title_full_unstemmed | 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| title_short | 3D numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| title_sort | 3d numerical simulation of seismic failure of concrete gravity dams considering base sliding |
| topic | concrete gravity dam sliding seismic failure 3d seismic response. |
| url | https://doi.org/10.2478/mmce-2022-0010 |
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