Kos Z. Stress-deformed state and residual bearing capacity of damaged flexible compressed reinforced concrete elements

Object of research - reinforced concrete damaged columns of rectangular cross-section; the purpose - is to determine the residual bearing capacity of the compressed damaged reinforced concrete elements of a rectangular cross-section of different flexibility based on the actual stress-strain state (SSS) of the construction.; methods - collecting, studying and analyzing literary sources; formulation of research tasks; development of a methodology for full-scale and numerical experiments using mathematical planning theory; using of modern methods for measuring deformations of materials; processing and analysis of the results; mathematical and physical modeling of the stress-strain state of experimental elements; comparison of the results of calculations with experimental data; formulation of main conclusions and development of recommendations for the implementation of research into design practice.General methods of reinforce concrete mechanics, abstraction, analysis, synthesis, induction, deduction; results - the work of the damaged flexible reinforced concrete columns was studied, the data on the influence of the damage parameters and the flexibility of the elements on the residual bearing capacity were obtained, on the basis of which a model for determining the residual bearing capacity of damaged reinforced concrete columns of different flexibility was developed, which takes into account all the main factors of influence and allows to determine bearing capacity of such damaged elements and decide on the further exploitation of structures; implemented in the practice of reconstruction design, as well as in the educational process of the OSACEA and the University North (Croatia) in specialists and master programs.