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Dams are critical infrastructure assets serving as sources for irrigation and hydropower generation. Over time, ensuring the safety of a dam against both static and dynamic loads is essential. Failure to do so can result in significant risks to life and property downstream. The majority of India’s existing older dams are gravity dams constructed from stone masonry. This study employs a finite element analysis (FEA) methodology to comprehensively evaluate the behavior of such masonry gravity dams. In this research, a two-dimensional (2D) finite element model of the spillway section of a gravity dam is formulated using ABAQUS-CAE software. In accordance with the IS 1893:2016 design guidelines, the equivalent static forces resulting from potential earthquakes acting on the dam are calculated. The model integrates the effects of the dam’s self-weight, hydrostatic pressure, and equivalent static force. The stresses obtained from finite element analysis are compared with the stresses obtained by following the concept of beam theory.

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Analysis of Overflow Section of a Masonry Gravity Dam Subjected to Earthquake Loads Using Equivalent Static Method

  • 会议论文

  • 发表日期：

    2026年

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  • S. J. Pavithra Reddy,
  • Gopika Sasidharan,
  • Praneeth Shivashankarappa,
  • Kaushal Nayak,
  • G. S. Pavan

摘要

Dams are critical infrastructure assets serving as sources for irrigation and hydropower generation. Over time, ensuring the safety of a dam against both static and dynamic loads is essential. Failure to do so can result in significant risks to life and property downstream. The majority of India’s existing older dams are gravity dams constructed from stone masonry. This study employs a finite element analysis (FEA) methodology to comprehensively evaluate the behavior of such masonry gravity dams. In this research, a two-dimensional (2D) finite element model of the spillway section of a gravity dam is formulated using ABAQUS-CAE software. In accordance with the IS 1893:2016 design guidelines, the equivalent static forces resulting from potential earthquakes acting on the dam are calculated. The model integrates the effects of the dam’s self-weight, hydrostatic pressure, and equivalent static force. The stresses obtained from finite element analysis are compared with the stresses obtained by following the concept of beam theory.