Numerical simulation of fluid-structure-soil interaction on the CAARC standard tall building

Resumo

In the present work, the effects of the wind action over a tall building are evaluated considering the
influence of soil-foundation interaction. The numerical model is developed in this work from a partitional coupling
scheme, in which the physical media involved are solved sequentially, and may present independent discretization
and solution methods. The Finite Element Method (FEM) is adopted for the spatial discretization of all physical
media, where linear hexahedral elements with underintegration techniques are used. Load transfer between soil
and structure is performed by a three-dimensional contact algorithm based on the penalty method and infinite
elements are employed at the boundaries of the soil computational domain to avoid the reflection of waves to the
region of interest. Due to the high computational demand, a hybrid parallelization model based on CUDA-OpenMP
techniques is employed to accelerate the processing time associated with the present simulations. Numerical results
obtained from aerodynamic and aeroelastic analyses are compared with numerical and wind tunnel measurements

reported by other authors. It was observed that the building response to the wind action was influenced by the soil-
foundation interaction, where a good agreement was obtained with respect to the reference results.