<p>This study investigates the pulse and seismic behavior of cylindrical intake towers, focusing on the influence of concrete platforms and their interaction with water. Various scenarios were modeled, considering internal water and peripheral reservoirs. These scenarios include: (I) no peripheral reservoir, (II) half-full reservoir with internal empty condition, (III) half-full reservoir with half-full internal water, (IV) full reservoir with internal empty condition, and (V) full reservoir with internal full condition. Concrete platforms at various heights were modeled under these conditions. Abaqus finite element software was used for modeling and analysis, with a total of 140 models developed, and 720 analyses conducted, including 560 pulse and 160 seismic analyses. Results show that at low-frequency loading, there is a direct correlation between reservoir and internal water levels with increased responses. However, as loading frequency increases, mode III demonstrates significantly higher displacement compared to other modes. Concrete platforms at elevated levels act as concentrated masses, reducing the structure’ s frequencies. Under medium and high-frequency loading, platforms at 70–100&#xa0;m reduce maximum response values, though marginal increases occur under low-frequency loading. This is due to the stiffening effect of the platforms at medium and shorter oscillatory periods. The maximum reduction in horizontal displacement and first principal stress occurs in models with concrete platforms at these elevated levels in mode IV, with reductions of 1.13% and 1.64% under pulse loading, and 10.59% and 9.90% under seismic loading, respectively. Overall, platforms above 0.7H generally have positive effects, but their influence varies with loading frequency.</p>