Abstract
The research topic is the enhancement of compressed reinforced concrete elements using transverse (secondary) reinforcement and high-strength longitudinal reinforcement. The relevance of this study is determined by the need to increase structural load-bearing capacity, ensure safety, and optimize material consumption in construction. The aim of the study is to investigate the effect of transverse reinforcement and high-strength longitudinal reinforcement on the load-bearing capacity and deformation behavior of reinforced concrete elements and to propose formulas for calculating prism strength based on experimental data. Research objectives include: testing samples under central and eccentric compression, assessing the impact of concrete grade and reinforcement class on element strength, and determining the efficiency coefficient of transverse reinforcement. Results showed that transverse reinforcement significantly increases element strength, reduces deformation, and improves the plastic properties of concrete. High-strength longitudinal reinforcement enhances element stability under central and eccentric compression. The proposed formulas allow precise calculations in structural design. In conclusion, the study results have practical significance for designing and using reinforced concrete structures and provide a basis for further research.