Authors:Peter Michalek, Jakub Kralovanec, and Jan Bujnak
this type of composite structures. The suitable method to found the shear connection properties could be full-scale composite beam tests, but quite a time-consuming and rather costly [ 1 ]. Therefore push-outtest were implemented in the research [ 2
Several types of economical and effective connectors are commonly used
for composite steel and concrete beams at present. Perforated shear connector
has been developed during last two decades and have become popular due to their
advantageous properties. At the Department of Steel and Timber Structures of
CTU many experiments (push-out test) were carried out with two types of
connector with different openings, various strengths of concrete and amount of
reinforcement. The design formulas for static shear load capacity were deduced
on the basis of these experiments. Nowadays, small modification of basic
connector was designed for decrease of laboriousness in situ. Results of
modified connector are in good compare with previous one.
Duratná P., Bujňák J., Bouchaïr A. Modeling of the steel-concrete push-outtest, Abstracts Book of the 8th International PhD & DLA Symposium on Architectural, Engineering and Information Sciences , Pécs, Hungary
The resistance of steel-concrete composite trusses is significantly influenced by shear connection producing interaction between the steel beam and concrete slab. To create the interaction between these structural parts, it is needed to prevent the relative slip at the steel-concrete interface using the shear connectors. Push-out testing can reflect the more real effect of the longitudinal force and reproduce the distribution of the shear force between the steel section and concrete slab. The finite element analysis is used in the paper to investigate numerically this structural system behavior, exploiting finite element computer procedures.