Calculation of cracking formation and propagation in centrically tensioned reinforced concrete elements with bond failure areas between reinforcement fittings and concrete
The paper presents a calculation method of limit state for tensile reinforced concrete elements with bond failure areas discretely located between reinforcement and concrete. The method is based on the compound bar model. Behavior of concrete and the bond layer between reinforcement and concrete is described by Prandtl diagram. The calculation was done taking into consideration the elastic and elastic-plastic behavior of the bond layer between reinforcement and concrete. Algorithm for calculation based on analytical dependence for estimating cracking propagation forces, crack width and spacing is described in this paper. Quantitative and qualitative assessments of the impact of bond failure area length on the crack propagation force are given.