Vyhnanets M. Crack resistance, deformability and bearing capacity of beam fiber concrete structures

The object of the study is the deformation process of reinforced concrete, fiber concrete and combined beams under short-term and long-term loads. The aim of the work is to investigate the load-bearing capacity, deformability, and crack resistance of steel fiber-reinforced concrete beams under short-term and long-term loads. The research methods are empirical, involving experimental studies of beams using modern measurement methods. Development of experimental research methodology. Processing and comparison of research results. For the first time, a methodology for theoretical and experimental researching of load-bearing capacity, deformability, and crack resistance of reinforced concrete, fiber concrete and combined beams under short-term loads has been proposed. The load-bearing capacity, deformability, and crack resistance of reinforced concrete, fiber concrete and combined beams under long-term loads have been experimentally studied. The research methodology for bearing capacity of beams according to normal and inclined cross-sections under short-term loads has been further developed and experimental research methodology for mechanical properties of steel fiber-reinforced concrete. The results of experimental and theoretical studies have made it possible to develop a simple and effective method for researching the load-bearing capacity, deformability and crack resistance of steel fiber-reinforced concrete beams under short-term and long-term loads. The research results are used at the Odessa State Academy of Civil Engineering and Architecture in the educational process for training masters in the specialty 192 "Construction and Civil Engineering".