Dimensionamento de silo em concreto armado com fundo plano, considerando as prescrições de normas brasileiras e internacionais para avaliação das pressões exercidas pelos grãos

Abstract

Grain storage has become a significant necessity in Brazil due to the country's increased grain production. Reinforced concrete emerges as a viable alternative for constructing grain storage structures. Understanding the main types of pressures exerted on these structures is fundamental for their correct design. Currently, the existing national standard that refers to these pressures, NBR 17066 (2022), states that the evaluation should be conducted in accordance with some foreign standards, depending on the flow inside the silo. For this study, the main considerations regarding grain pressures were evaluated, and the primary differences between the standards ANSI S 4331 (ASAE, 2019), EN 1991-4 (EUROCODE, 2006), ISO 11697 (ISO, 2012), AS 3774 (2016), and NBR 17066 (2022) were listed. Furthermore, there are no specific national regulations for the design of these types of structures. Therefore, it is of fundamental importance to seek reliable bibliographies and foreign standards to carry out this design