Análise comparativa dos sistemas estruturais de lajes convencionais e lajes nervuradas.

Abstract

This work aims to analyze, comparatively, the costs between the structural system of conventional slabs and rib slabs in reinforced concrete. Due to an elevated improvement in the civil construction and an elevated advance in technology, there is, currently, a huge number of structural systems connected to new calculations tools, which help the process of structural analysis quickly and with exactitude, causing to many professionals the choice to a determinate system to be analyzed. But several times, the choice which is chosen is not the most suitable to an edification, because each workmanship has its characteristics particular architectural, constructive, causing to the engineer to find, in its condition, a structural system that benefits better economic conditions. First, it is displayed the structural system adopted, describing its main characteristics, highlighting its advantages and disadvantages, introducing basic concepts about its topic, and also, approaching the criterion of projects. Therefore, a building is adopted as an example of this study. Later, one becomes the launching and analysis of the structure for the structural system that has been chosen, getting the quantitative ones of materials, used for being compared. After the total costs of the workmanship gotten by its structural system used, concludes that the best structural alternative to its proposed edification is the conventional system of massive slabs. Besides that, the results are shown for giving the professional in civil construction an estimated value, to work as reference in the choice of structural alternatives to be adopted.