UM ESTUDO COMPARATIVO DE CUSTOS ENTRE FUNDAÇÃO DO TIPO RADIER E SAPATA

Abstract

In civil construction, structural problems still occur due to the lack of accurate data and in-depth soil analysis. Soils are formed by the decomposition of rocks that have undergone chemical, physical, and mechanical processes, giving rise to different types. To correctly identify the type of soil, the standard penetration test, known as SPT, is performed, following Standard NBR 6484 (2020). Only with the data collected by the SPT is it possible to define the type of soil present at the site. The type of soil is directly linked to the choice of the ideal foundation for the construction. The selectionof the appropriate type of foundation depends on the characteristics of the soil and the load demands it will support, seeking to dissipate these forces without causing ruptures. The methodology applied was an analysis between two specific types of foundations, which are the footing and the raft. Initially, a literature review will be carried out comparing both. Then, a calculation will be performed to verify the advantages and disadvantages of each one, in relation to cost/benefit, agility, and behavior, between both for the work. The general objective is to present a comparative study of the execution of the types of foundations: raft and footing. It was found that, for this study, the footing foundation proved to be more economically viable for execution, since its cost with concrete and reinforcement was lower, in this case, contributing to its choice.