On the Behavior of Headed Fastenings Between Steel and Concrete

The combination of materials with different structural properties (i.e. steel and concrete) is one of the most effective ways how to improve the efficiency of building structures. The proper design and detailing of connections between structural elements made of these two materials is an essential condition for an efficient functioning of the composite structure.The technical specification CEN/TS 1992-4-2:2009 defines design rules for headed fastenings under tensile and shear loads. A critical review of some of the design concepts included in this technical specification will be presented in the paper on the basis of experimental results. A new design concept proposed within the European project Infaso will also be evaluated.