Comparativo entre o dimensionamento de estruturas de aço e concreto : um estudo de caso

Abstract

This work evaluated computational tools available in the market and a methodology for estimating costs for structures, applying them to a specific case. One residential building was designed in both steel and reinforced concrete, having their respective quantities estimated. A qualitative analysis was applied, which largely favored the steel option. Preliminary construction schedules were generated and exhibited clear advantage for the steel option in regard to total time. The structure was approximately 115% more costly, while the foundations were only 6% lower. The total sum resulted in 75% cost addition in comparison to the concrete option. Productivity of the method was lower than expected, even though such process may be improved with spreadsheets to interpret and process data from the software reports. Furthermore, a database for prices compositions should add speed to the the cost estimation.