Seismic Response of Composite Shear Connections

Abstract

Four different failure modes, stud shearing, concrete pullout, rib shearing and rib punching are described for metal deck stud shear connections. Equations for predicting the strengths associated with those failures are derived. Behavioral comparisons are made between companion specimens subjected to monotonic and reversed cyclic loading. It is shown that the type of failure greatly influences the strength, ductility and reversed cyclic loading response. The benefits of using larger stud‐spadngs, staggering of the studs, larger rib widths and ribs parallel to the direction of applied shear are demonstrated.