Estudo comparativo entre sistemas estruturais de lajes maciças e nervuradas moldadas in loco em um edifício comercial

Abstract

For the dimensioning of concrete armor structures, it is indispensable to use suitable constructive systems; in order to ensure a propagation of the structural element in question; the safety, quality and economy of the work. The present study compares the use of solid slabs and the molded nerve in loco in a 4-storey commercial building, as well as being an economic evaluation for each method, an end to elucidate is better that it is more cost-effective benefit.The comparison was made using the Eberick V10 software in addition to the Sistema Nacional de Pesquisa de Custos e Índices da Construção Civil (SINAPI), with the purpose of dimensioning the slabs and obtaining a quantitative table (formwork, concrete and steel), as well as performing a composition of costs of the clients and services particular to each method, respectively. The study was carried out in a selective selection of a grouping of factors that has an architectural requirement for the materials and services provided. In this way, it was possible to prove the use of the ribbed slab as the most feasible method, despite the higher cost of operation.