Numerical Simulation Of Pull Out Tests In Steel Checkered Plates

Resumo

Steel-concrete solidary behaviour in composite structures can be obtained through shear connectors.
Most of the used connectors do not allow a uniform shear stress distribution between these materials, contributing
to the stress concentration and the development of cracks, which can decrease the systems’ durability. Connections
by adherence (CA) appear as an alternative. In this type of connection, the steel-concrete interaction is achieved
through a linear connector, which consists of a steel plate with checkered grooves, that favors the transfer of stress
through the friction between the interfaces that will be in contact. In this way, the connection’ performance is
influenced by interfaces’ behavior and steel-concrete interaction. In the case of CA, the resistance to pull a steel
plate from a concrete element can be investigated employing Pull Out tests, in a similar way to that developed with
bars. Therefore, this paper aimed to model Pull Out tests of steel plates, using ABAQUS®, which were calibrated

from literature’s experimental results. A parametric study was developed to investigate the influence of the steel-
concrete contact area and the interface’s stiffness in the adherence of the plates. The results showed that rougher

interfaces, with greater stiffness and greater steel-concrete contact area, developed better results.