Post Installed Rebar Design of Shear Friction with Hilti Method

Design Principles and Software Demonstration

Hilti has utilized Palieraki et al. (1) research that considers a calculated resistance between two concrete surfaces over which shear acts and is not predicated on bar development. Instead, the shear friction resistance at the interface between concrete surfaces and resistance due to dowel action on the reinforcing bars are calculated to give an overall shear resistance. The advantage of this method is that a shallower bar embedment not predicated on development (i.e., bar yielding).