TECHNICAL STUDY OF REINFORCED CONCRETE BUILDINGS OF DIFFERENT HEIGHTS: ANALYSIS OF THE QUANTITY OF CONCRETE, STEEL AND FORMWORK

Resumo

The purpose of this study was to analyze the technical characteristics of buildings from three to 21 pavements, with a ribbed slab, as well as using different values of characteristic resistance to concrete compression (f_ck), varying from 25 MPa to 40 MPa, with a geometric relation in plan, of 1:1. Utilizing the obtained results, it is possible to contribute to the structural design, in the dimensioning, and to contribute to the budgeting of the structure of buildings in reinforced concrete with the same geometric relation. Data collection and organization were obtained through reinforced concrete structure analysis software and spreadsheets. The procedures applied were divided into architectural design, structural design, global stability analysis, quantification of inputs, and definition of technical parameters. The analysis of the results concluded that: the increase of f_ck caused a great reduction in steel consumption. With the increase in the number of pavements type, there was an expressive increase in the consumption of the beams, the buildings of smaller height did not present a great reduction in the consumption of concrete with the increase of f_ck, if compared with the buildings of greater heights.