Punching shear resistance of flat plate connection under monotonic load

Abstract

This research studies the response of flat plate–column connections consisting of various types of shear reinforcement and steel plate subjected to gravity loadings using structural experiments and numerical analysis in tall buildings. The four test specimens were prepared to model the interior bay flat plate slab–column connections in a typical flat plate slab building. The base specimen has no shear reinforcement, and the other specimens have shear stud rails, shear studs with short steel plates under the slab and on the top portion of the column, and shear studs with long steel plates under the slab and on the top portion of the column. The base specimen failed due to punching shear generated from the gravity loading. The three other types of slab shear reinforcement using stud rails, shear studs with short steel plates and shear studs with long steel plates were shown to be efficient in resisting punching shear in the connections under gravity loading. The specimens containing studs with steel plates showed the most ductile behaviour under the gravity loading. The structural behaviour of the four specimens has been tested using the structural experiment and numerical analysis.