Estudo comparativo de quantitativos de insumos e custos totais entre soluções estruturais de laje para um determinado projeto arquitetônico

Abstract

This paper is based on a comparative research of overall costs and quantities of materials for a reinforced concrete structure. The building originally designed with precast latticereinforced concrete slabs, and brick filler blocks (called model 1). For this, three new structural models are proposed: using precast lattice-reinforced concrete slabs with filler blocks of expanded polystyrene (EPS) maintaining the original framework (model 2), with solid slabs (model 3) and waffle slabs with moulds (model 4), both reducing the number of beams. The design and results in terms of concrete, steel, formwork usage indexes and costs (total and by structural elements) to the indicated solutions were accomplished with the support of Eberick version 2018 software, under the same calculation criteria. It was possible to observe the variation of the concrete, steel and formwork consumption indexes among the proposed models and the most economically adequate solution for this specific case (model 2).