Parametric study for Y‐shape perfobond shear connection

AbstractThe development process of the composite structures is always an ongoing process, to gain more the benefits of the composite work between steel and concrete. This process has created a wide range of types of shear connections. Different types of perfobond shear connections have been developed to overcome the disadvantages of the conventional headed stud connections. The new types like the Y, puzzle, clothoid, etc. shape perfobond plates have been studied due to their beneficial ultimate resistance and deformation capacity. The Y‐type perfobond rib shear connection is a superior alternative to the conventional perfobond due to its improved performance characteristics, such as higher ductility and stiffness, and greater resistance against uplifting force. In this paper the focus in on Y‐shape perfobond shear connections. A finite element model for a push‐out test has been developed to analyze the influence of structural parameters on the behavior of the connection. The model was verified by the experimental test completed at the Department of Structural Engineering, in Budapest University of Technology and Economics. The FE model was developed on Atena GID software. In this paper the effect of the angle of the inclined Y parts and the geometrical dimensions of the inclined Y parts are analyzed on the resistance, degradation tendencies, deformation capacity and the stiffness of the connection, conclusions are drawn, and beneficial structural details are recommended.