COMPARATIVE CASE STUDY BETWEEN THE CHARACTERISTICS THAT THE USE OF PASSIVE OR ACTIVE REINFORCEMENT IN RIBBED SLAB ATTRIBUTES TO THE CONSTRUCTION OF A GARAGE BUILDING

Abstract

The flexibility provided by buildings with larger spaces between pillars has increased its demand and popularity. For this reason, specific construction technics were developed to respond to this market demand. Some of the technics already developed are the ribbed slab and the prestressed concrete. In this context, this article aims to demonstrate how the choice between the use of reinforced concrete and prestressed concrete in ribbed slab influences the cost, the execution and the purpose of the construction of a garage building of 8,374m2 of area, planned to respond to the needs of a judicial forum in Manaus. The data were collected based on the structural projects for each type of slab (with reinforced concrete and prestressed concrete). The article demonstrates through tables and graphs that the amount of structural items, as well as the amount of material used in the infrastructure and the cost of execution of the prestressed concrete slab are inferior when compared to the reinforced concrete slab, in addition the prestressed concrete slab exhibited more advantageous in terms of functionality and execution for this analyzed case.