Evaluation of the Structural Behavior of Composite Slim-Floor Beams with Openings in the Web

Abstract

In this study, the bending behavior of Slim-Floor beams was analyzed using FE models developed in the ABAQUS software. The validity of these models was demonstrated by comparing the numerical results obtained with experimental data found in the literature. Through parametric evaluations, the following findings were verified: (i) the connection mechanisms adopted (concrete dowels, reinforcing steel bars, and adherence) were able to activate the composite behavior between steel and concrete; (ii) the spacing between the openings, the number of openings, and the diameter of the reinforcing steel bars determine the behavior of the connection; (iii) adherence contributes little to the strength of the connection, and therefore, its contribution can be neglected; (iv) the connection mechanisms adopted in this study can promote the ductile behavior of the Slim-Floor beams.

Keywords

• Slim-Floor
• composite beam
• connection mechanisms
• concrete dowels
• reinforcing steel bar
• adherence