Análise estrutural de um reservatório elevado: comparação entre métodos de cálculo analítico e computacional

Abstract

A reservoir is an engineering element that solves society's demand to accumulate liquids. In the present work, the elevated reservoir is 4.40 meters in diameter and 27.40 meters high, containing two cells, the first cell being 7.70 meters high, the second cell with 5.30 meters. The analytical calculation in this work was performed using Hangan and Soare's (1959) abacus for the calculation of wall forces, and the equations of Timoshenko and Woinowosky-Krieger (1959) for the calculation of slab efforts. For analysis using the Finite Element Method, due to the high number of equations, a program for complex problems becomes necessary, in this work the SAP2000 program was used. Analyzing the results, it is concluded that a project using the values provided by the analytical method returns a large part of the effort values superior to the Finite Element Method, being a project in favor of safety. In some cases, the analytical method has shown lower values than the Finite Element Method, however, it is noteworthy that this is a linear elastic analysis and that the safety factors play the role of adjustment in these situations.