PROJETO DE FUNDAÇÃO DE SILO DE ARMAZENAGEM DE GRÃOS – ESTUDO DE CASO

Abstract

With the growth of agriculture in the country the storage systems tend to be of the utmost importance, since they allow the long-term storage and maintain the characteristics of the grains after harvesting and drying. In view of the economic and social importance of the grains, it is necessary that the structure be stable and present a good resistance. Seeking to bring a reference for this type of project that is scarce in the literature, through a case study was analyzed and dimensioned the foundation of a prototype silo metal storage flat bottom with diameter 12.73 meters and height of 22.94 meters located in the city of Três Corações - MG, more precisely on the banks of the LMG highway 862, km 35. The survey was carried out on the site, presenting a soil with a consistency varying between mole, compact, hard and a satisfactory resistance only from 14 meters deep to give sufficient stability to the structure. With the aid of a structural calculation program, the base of the silo composed by the crown ring and radier, both in reinforced concrete (f_ck = 25 Mpa), was dimensioned. The crown ring has a width of 0.35 m and a height of 0.8 m and a length of 40 meters in circumference. The radier is approximately 120 m² in area. The stakes were evenly distributed among the elements, called the stake E1 for the ring and E2 for the radier both with 0.35 m in diameter. After the distribution, the scaffolding was carried out. It is estimated that approximately 179.5 m³ of concrete, 5507 kg of CA-50 steel, 471.74 kg of CA-60 steel and 94.17 m² of form will be required for the execution of the work.