Finite Element Analysis of Concrete Gravity Dam

Abstract

Dams have been structures that have served to meet humanity's water needs for centuries. Because they are large structures, critical investigations must be made before they are built. However, these investigations and scaled or one-to-one modeling of dams have become costly today. At this point, package programs working with finite elements are used functionally. ANSYS package program is also a frequently preferred package program that provides results close to reality. In this study, a 3D dam body modeled with ANSYS was examined. While modeling, the water load acting outside the dam's own weight and the material properties of the dam body were taken into account and analyzed. The dam was modeled in accordance with its exact dimensions without any scaling. This study examines the stress and displacement of a concrete gravity dam under half-filled and fully filled conditions, highlighting significant differences in structural behavior. It was determined that the displacement and stress values found for the full state were higher than the half-full state.

Keywords

• ANSYS
• Concrete Gravity Dam
• Finite Element Analysis

References

1. Ağıralioğlu, N., Baraj Planlama ve Tasarımı: cilt 1. Su Vakfı Yayınları, 2nd edition, 2007.
2. Erkek, C., Ağıralioğlu, N., Su Kaynakları Mühendisliği. Beta Basım Yayıncılık Distribution, 6th Ed., 2010.
3. Ahemad, F., Awar, U., Hanumanthappa, M. S., Stability analysis of gravity dam with is-code method and ANSYS. SAMRIDDHI: A Journal of Physical Sciences, Engineering and Technology, 14(3), 435-441, 2022.
4. Saxena, S., Patel, M., Evaluating dynamic behaviour of a concrete dam using modal analysis. Materials Today: Proceedings, 93, 296-301, 2023.
5. Sharma, A., & Nallasivam, K., Static analysis of a concrete gravity dam using the finite element technique. Asian Journal of Civil Engineering, 24(8), 2939-2957, 2023.
6. Todorov, O. K., Petkova, S. S., Kisliakov, D. S., Formulation of parameter limit values for the operation of a large concrete gravity dam, 12th International Scientific Conference Civil Engineering Design and Construction (DCB 2022), New York, USA, 7-10 September,2022.
7. Vipparthy, R., Static and free vibration analysis of gravity dam under the influence of hydrostatic pressure using ANSYS finite element models, 2022. https://doi.org/10.21203/rs.3.rs-1823407/v1.
8. Silveira, I. V. D., Pedroso, L. J., Marotta, G. S., Study of the influence of the foundation and the reservoir on the dynamic response in a concrete gravity dam profile. Revista IBRACON de Estruturas e Materiais, 14(4), e14403, 2021. https://doi.org/10.1590/S1983-41952021000400003.

9. Messaad, M., Bourezane, M., Latrache, M., Berrabah, A. T., Ouzendja, D., Three-dimensional seismic analysis of concrete gravity dams considering foundation flexibility. Mechanics and Mechanical Engineering, 25(1), 88-98, 2021.
10. Gao, S., Chen, Y., Xiang, J., Finite element analysis of stress in the gallery of gravity dam on inclined bedrock based on ANSYS model. 2021 International Conference on Water Conservancy, Energy and Environmental Engineering, Nanjing, China, 25-27 June 2021.
11. Wei, L., Wei, P., & Yang, Y., Static calculation and analysis of certain gravity dam. In Journal of Physics: Conference Series,1550 (3), 032006, IOP Publishing,2020. doi:10.1088/1742-6596/1550/3/032006.
12. Habib, A., Houri, A. A., Habib, M., Elzokra, A., Yildirim, U., Structural performance and Finite Element modeling of roller compacted concrete dams: A review. Latin American Journal of Solids and Structures, 18, e376, 2021.
13. Taylan, D., Aydın, T., Analysis of dynamic behavior of Darideresi-II Dam by ANSYS. Natural Hazards, 90, 1223-1235, 2018.
14. Zhu, B., The Finite Element Method: Fundamentals and Applications in Civil, Hydraulic, Mechanical and Aeronautical Engineering, First Edition, 2018.
15. Ovalı, İ., Ansys Workbench. Kodlab Yayın Dağıtım Yazılım Ltd. Şti, 2018.