A Numerical Study on the Impact of Soil-Structure Interaction on the Structural Response of a Reinforced Concrete Building

Resumo

This research aimed to investigate the impact of Soil-Structure Interaction (SSI) on a reinforced concrete building with a deep foundation, located in the region of Grande Vitória, Espírito Santo, Brazil. To this end, a structural model was developed considering, firstly, a rigid support and, subsequently, through an iterative process, a flexible support, in order to analyze changes in load distributions and structural settlements. The TQS software was utilized to model and calculate the superstructure loads, while PLAXIS 3D was employed for soil modeling and settlement estimation. The convergence of the iterative process was achieved from the third iteration, presenting an approximate variation of 5.0%. At the conclusion of the analysis, a maximum load relief of 16.05% and an overload of 25.42% were observed, highlighting the significance of considering soil deformability during the structural design process.