The pushover analysis approach was used in this work to assess the seismic capacity of a high-rise RCC building. In this evaluation method, a 20-story building bearing continuous gravity loads and gradually increasing lateral forces is investigated until a target displacement is reached through ETAB software. After that, a number of streamlined nonlinear techniques based on pushover analysis were used to evaluate how well they could anticipate seismic demand. In the case of nonlinear static evaluation, the loads are taken into account incrementally rather than once. After the analysis of structure this model was evaluated in terms of story drift, story displacement, base shear, and pattern of formation of plastic hinge. Finally, a thorough parametric analysis is used to assess the accuracy of the suggested methodology. This indicates that it offers a practical design tool overall. It has been found that the structural frame results in both directions and the resultant capacity curves fall within the life safety performance standard. “Pushover (nonlinear static) analysis is used to figure out structure damage vulnerability and an acceptable level of safety.” To address such issues, a number of scientific studies have been performed to evaluate the better performance of a structure. From our research study, it enabled us to study the sequential creation of plastic hinges in the many structural parts. It provides sensitivity information on the effects of changing the strength and stiffness. In order to maximize cost efficiency, we may decide to reinforce just the necessary components when remodeling a structure. So as an outcome, the pushover testing approach is now an excellent computer tool for investigating the seismic strength of structures subjected to seismic pressures.