Comparative technical-economic analysis between two-directional lightened slabs and one-directional joist slabs. Case study in Azogues city, Ecuador
Abstract
In this study, a technical-economic comparison is made between two-directional lightened slabs (ADD) and one-directional joist slabs (TVUD), the latter being a design proposal to be used in the country. Two multifamily building projects in Azogues were considered. The research was developed through the design according to the ACI 318-19 standard and the estimation of the cost per square meter of each typology. The results indicate that the TVUD slab is lighter in weight than the ADD, which leads to a reduction in the dimensions of foundations, beams and columns, resulting in structurally light and stable buildings. The economic analysis reveals that the final cost of the TVUD slab is lower regarding the quantity of materials and labor, thanks to the simplicity of its construction process. In Ecuador, the implementation of this structure would mean an important innovation compared to conventional slab systems.
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