Aeroelastic Revision of an Atypical Geometry Building through One-way Fluid-structure Interaction Model

Aims: On this work, a methodology that solves the one-way fluid-structure interaction problem
approach is presented. This methodology is applicable to any building’s geometry, nevertheless, in
order to develop a solution, it was proposed a building with a geometry not considered in most of the
design codes of structures under wind pressures. In order to compare the results of this methodology
a tall building model (CAARC model) widely studied by different authors is also analyzed.
Place and Duration of Study: Graduate Engineering Department, Universidad Autonoma de
Queretaro, Queretaro, Mexico. January 2017 to October 2018.
Methodology: First of all, two computational fluid mechanics models were developed in order to
obtain the pressures of the wind around the two buildings proposed in a dynamic way. Later, the
obtained dynamic pressures were transferred according to the load transfer method on the Structural
Mechanical Building model through time-history analysis solved by means of a direct integration
method to obtain the dynamic aeroelastic response of the structures.
Results: The dynamic aeroelastic response for both models is obtained.
Conclusion: This methodology does not present any restriction in the model’s geometry and leads to
analyze important aspects for the structural analysis such as state of stress of the structural elements
and structure displacements, accordingly, the method is suitable for structures under wind pressures
that are not considered in the codes. The results obtained through this methodology present a good
approach to those obtained by means of fluid structure-interaction models.