The structural behavior of concrete members due to cast-in anchor channels subjected to shearloadinginlongitudinalchannelaxisposesanon-trivialmodelingtask. Theexplicitapplicability of recent calculation methods on anchor channels has rarely been validated by physical experiments. Preliminary test series on serrated anchor channels were carried out to…
The structural behavior of concrete members due to cast-in anchor channels subjected to shearloadinginlongitudinalchannelaxisposesanon-trivialmodelingtask. Theexplicitapplicability of recent calculation methods on anchor channels has rarely been validated by physical experiments. Preliminary test series on serrated anchor channels were carried out to determine the structural be- havior under longitudinal shear loading. Anchor channels were installed in concrete close to the specimen’s edge and positioned orthogonal to the edge. Each anchor channel was equipped with two riveted anchors. Loading was applied over serrated bolts until failure. Special attention was paid to the crack formation during loading. Of particular interest was the point in time when the load was redistributed from the front to the rear anchor. To attain a deeper insight with respect to the fail- ure mechanisms, finite element simulations were performed. The main challenge, additionally to the complex mesh geometry, was in modeling the physical behavior of structural steel and concrete as a compositestructure. The interaction between the brittle concrete and the ductile structural steel needs to be appropriately accounted for by means of adequate numerical simulation. Numerical calibration experiments, involving the structural steel members, were performed until satisfactory convergence was achieved. Load-deflection curves obtained from physical experiments were adopted for calibra- tion of the numerical model. The obtained hybrid numerical/experimental results appear to contradict the results calculated by means of currently available design guidelines.