Previous studies show that the dynamic behavior of the structure is influenced by the behavior of the soil under the foundation. At the time of the earthquake, the soil under the foundation affects the dynamic response of the structure. Therefore, taking into account the flexibility of the foundation causes a change in the internal forces of the members, which leads to attention to the effect of interaction between foundation-structure and soil. In this study, structures of 5, 10, and 20 floor of the type of bending frame and Special bracing in both the fixed and flexible are designed and analyzed in accordance with the 2800 regulations, and spectral analyzes and dynamic analysis of linear time histories were designed. The soil is also modeled by the Winkler model with a spring element. Increasing the period of frequency, reducing the base shear and increasing drift of soil-structure interaction effects are considered an important reason for this effect is in structural design. The results also showed that the changes mentioned in the bracing structures are greater than the bending frame.