SILVA, Valneide Rodrigues da.; LOPES NETO, José Pinheiro.; NASCIMENTO, José Wallace Barbosa do.; FURTADO, Dermeval Araújo.
Résumé:
Last years in Brazil have shown an agricultural growth that has forced several sectors
to fit in productive patterns to maintain competitiveness within the process of economic globalization.
In this context, the poultry factories tend to search for new alternatives to favor production and reduce
costs without affecting the quality of the final product. Among these alternatives, there is the use of
vertical silos due to their capacity to facilitate the process of rations production and remove the need
for great horizontal warehouses. Aware of such necessity, the present research had the objective to
study the strength produced on the zigzag shaped walls of a 2m x 1m prismatic metallic silo, and to
compare results found with theories and similar studies. DIN 1055 and AS 3774 norms were used for
the calculation of pressure, whilst the simplified methods of Ravenet and Troitsky were used to
calculate strength. Strain gauges were used to obtain data concerning the real efforts on the walls.
Based on results found, it was concluded that either Ravenet or Troitsky s theory can be recommended
for the design of prismatic silos since they present great accuracy when contrasted with experimental
values.
