Structural Behavior of Hollow High-Strength Concrete Beams with Different Size Reductions

This article aims to combine the plasticity and damage material models to predict the crack patterns of a concrete structure. The load–deflection behavior will be focused on investigating, as well as the changes in the shape of the hole. To achieve this goal, two concrete beams, one solid and one with a central hole were fabricated and made a four-point bending test to evaluate and compare their flexural behaviors. To prove the reliability of the experiment results and the presented model, the numerical simulation was used to verify the experimental results and provide a basis for analyzing proposed cases. The results show that the combination model in this study can be a useful one for structure cracking analysis.