Análisis comparativo de costos y tiempo entre losas de hormigón armado y losas pre-tensadas pre-fabricadas sobre pórticos de hormigón armado.

Abstract

In this degree work, a comparison was made between the traditional construction systems of reinforced concrete and the construction system of precast elements, used for the construction of a parking slab where the underground parking lot of the El Fortín Shopping Center was taken as an example, trying to demonstrate the advantages and disadvantages that one system has over the other, depending on the cost and time of project execution. The modification of the structural plan of the slab was carried out, in order to be able to make the analysis of the quantities of the materials, and structure the budgets and work schedules for the different construction systems. Additionally, the time and cost analysis of the traditional reinforced concrete system was carried out by implementing heavy machinery (in this case a crane), which would be used in construction to transport and lift materials for formwork and reinforcing steel, obtaining as a result that the traditional system of reinforced concrete with implementation of heavy machinery (crane) is more expensive than common work only with construction personnel, however it requires less execution time.