NUMERICAL ANALYSIS OF THE FLEXURAL BEHAVIOR OF DELTABEAM® IN THE SLIM FLOOR SYSTEM

Resumo

The composite structures take the advantages of steel and concrete, creating a more resistant
system and with an easier assembly. These structures comply the current demands of civil construction,
saving time and consequently reducing costs. Therefore, new composite structures have being studied
and established worldwide, such as the slim floor beam. This system consists in steel beams and concrete
or composite slabs, reducing the total height of the floor by introducing the slab at the height of the
beam. It is a system that provides a range of possibilities, it may vary the type of steel profile employed,
can be the Deltabeam®. Thus, a numerical study of this slim floor typology was carried out, aiming to
compare its flexural behavior with the most usual typology, the Asymmetric Slimflor Beam. The study
is part of an extensive theoretical-numerical research in development at the University of São Paulo
(USP), which aims to elaborate a study of slim floor typologies. The finite element modeling is presented
as an alternative to conducting experimental investigations, due to its lower demand for financial, human
and time resources. The ABAQUS® was the software employed in the simulations, and were used
experimental and numerical studies to calibrate the model, carried out by the National Technical
University of Athens in partnership with Peikko, which holds the patent of Deltabeam®. From the
results of the simulations, it was possible to conclude that the characteristics of Deltabeam® contribute
to a greater rigidity and flexural strength of the system.