Gravity dams are massive hydraulic structures widely used for irrigation, hydroelectric power generation, flood control, and water supply. These structures rely primarily on their self-weight to resist external forces such as hydrostatic pressure, uplift pressure, silt pressure, and seismic forces. Ensuring structural stability and stress safety under static and dynamic loading conditions is essential for preventing catastrophic failure. This study presents a finite element–based stability and stress assessment of a concrete gravity dam using STAAD.Pro software. The gravity dam is modeled as a three-dimensional solid finite element system to accurately simulate real structural behavior. Various loading conditions including self-weight, reservoir water pressure, uplift pressure, and seismic forces are applied as per standard engineering principles. The structural response is evaluated in terms of principal stresses, shear stresses, displacement patterns, base reactions, and safety against sliding and overturning. STAAD.Pro enables detailed stress contour visualization and accurate assessment of critical zones within the dam body and foundation interface. The results demonstrate that finite element modelling provides a reliable and efficient approach for analyzing stability criteria and stress distribution in concrete gravity dams. The study highlights the effectiveness of computer-aided structural analysis in ensuring safety, serviceability, and structural integrity under both static and seismic loading conditions.
Sudhakar et al. (Fri,) studied this question.