Solution of Connection in Steel-Concrete Composite Elements using a U-Type Connector

Abstract

This paper presents a proposal for a connection for steel-concrete composite elements. It is realized using a U-shaped steel connector fastened with shot-in nails. Experimental tests were conducted, which confirmed the suitability of this solution for use in composite elements. The load-bearing capacity of the connector and its scope of application were determined. A numerical model of the analyzed connection was prepared, showing the compliance of the experimental results with the results of FEM calculations. Analytical calculations were performed, on the basis of which the required number of connectors was determined for different variants of steel-concrete composite beams. The proposed solution can be a supplement to the previously used methods of connection in steel-concrete elements, especially in building ceilings, where solutions eliminating the welding process are preferred for various reasons.