This contribution presents some recent results of an program aimed at revealing the basic aspects of fracture of lightly reinforced concrete beams. Micro-concrete beams sizes, with various steel ratios and various bond properties of reinforcing bars have been tested. Special…
This contribution presents some recent results of an program aimed at revealing the basic aspects of fracture of lightly reinforced concrete beams. Micro-concrete beams sizes, with various steel ratios and various bond properties of reinforcing bars have been tested. Special care was exerted to achieve low scatter and to produce an exhaustive material characterization. included the determination of fracture properties, steel stress-strain curve and bond-slip properties. The experimental results are discussed, based on a numerical simulation that includes the cohesive behavior of concrete and the bond-slip of the reinforcement. show good agreement between the theoretical and experimental curves.