AERODYNAMIC LOAD IN SILO DESIGN

Resumo

Metal silos are thin structures composed mostly of steel sheets intended for grain storage. When empty
and exposed to wind action, they are susceptible to the phenomenon of instability, thus characterizing the critical
state of the structure. The instability of these profiles occurs from the formation of vibration modes leading to loss
of local stability. To guarantee the integrity of the structure, transverse stiffeners are added, increasing the rigidity
of the steel profiles. The present work consists in the modeling of a park of metallic silos submitted to the
aerodynamic action of the wind for the analysis of the structural behavior will be considered the formation of
vortices and turbulences in the empty structure, submitted only to its own weight, as well as, with the pressure
coming from of your storage. For this, the structure was modeled in software based on the finite element method.
The knowledge of the dynamic forces in light profile structures is essential to guarantee the integrity of the silos.