Análise comparativa de custo entre lajes do tipo maciça, nervurada e treliçada na cidade de Dourados - MS

Abstract

With the evolution of structural systems used in civil construction, much has been said about the vertical growth of cities and the type of slab to be used. Although there are several works on the subject, they are sparse on many topics. Seeking to contribute to this issue, this work explores objective concepts and practical applications for a more economical and effective decision making. Based on this premise, a typical floor of a building was analyzed and the direct costs between the main selected materials, steel and concrete, were considered. Then, comparative analyzes of the costs of these materials obtained were carried out, according to the requested suppliers, reaching an overall value for each system under study. Consequently, it was possible to predict which slab achieved the best cost. Where the results for the most suitable structural alternative for the proposed building is the conventional system of ribbed slabs, compared with the solid slab and lattice. In summary, looking only at steel and concrete, the savings generated do not stand out in relation to other systems, however, making an analysis encompassing form and truss, the ribbed slab has a better result.