Reinforced concrete structures are fundamental to modern infrastructure, but their mechanical integrity can be compromised under cyclic loading conditions. Accurate modeling of their behavior, especially in terms of damage progression and vibration characteristics, is crucial for ensuring their longevity and safety. This study introduces a comprehensive coupled damage-plasticity modeling approach to investigate the behavior of damaged reinforced concrete elements, with a particular focus on their vibration characteristics. The proposed model is developed to accurately simulate both the static and dynamic responses of these concrete elements, taking into account the complex effects of cyclic loading. By capturing the intricate interaction between damage and plasticity, the model provides a detailed understanding of how vibration properties degrade over time as damage progresses. The analysis includes various damage levels to reflect real-world scenarios, ensuring the robustness of the model in predicting the behavior of reinforced concrete structures under different conditions. Numerical simulations were conducted to assess the static and dynamic performance, with particular attention given to the loading and unloading conditions. Numerical results were compared with experimental data from the literature to validate the proposed model, and the comparisons highlighted a high degree of consistency, confirming the accuracy and reliability of the model. The obtained results underscore the applicability of the numerical framework as a model-based damage identification procedure, making it a valuable tool for engineers and researchers involved in the assessment and maintenance of reinforced concrete structures. Overall, the study highlights the effectiveness of the coupled damage-plasticity model in providing a nuanced understanding of the mechanical performance of damaged reinforced concrete elements, offering significant insights into their static and dynamic behaviors under various loading conditions.