Abstract
The paper presents the development of theoretical and applied principles for the probabilistic assessment of the reliability of reinforced concrete structures. A method for evaluating structural reliability at the construction stage is proposed, based on a probabilistic approach and statistical processing of factors influencing load-bearing capacity. Analytical relationships for determining the probability of failure-free operation using the reliability index are obtained, and a comparison between deterministic and probabilistic approaches is carried out. It is established that the use of probabilistic methods contributes to an increase in the reliability of structures. The results obtained may be applied in assessing the reliability of building structures at the design stage of construction projects.