Sabir Y. Bearing capacity of reinforced concrete arches considering technological damage of concrete

The object of research - is technological damage of concrete in reinforced concrete constructions; purpose - is experimental and theoretical basis of technological damage influence on stress-deformed state of arch constructions of heavy concrete; methods - defining of technological damage of concrete cubes, prisms and reinforced concrete arches using tannin solution (V.N. Vyrovoy, V.S. Dorofeyev, S.S. Makarova, S.A. Abakumov - A method of detecting cracks in concrete and reinforced concrete structures with inorganic binder. - Approval No. 5008907/33(059304) of 03-07.91), methods of mechanical testing of samples under load using mechanical method of measurements of movements and photo capture of the patterns of formation of cracks and destruction; numerical methods of research using SCAD PC, methods of statistical processing of experimental data; comparison of theoretical and experimental data; results - an experimental and theoretical study of the influence of technological damage of heavy concrete on its strength and deformation characteristics, as well as on work of concrete two-hinged arches under load was carried out; the effect of the location of concentrated load on the nature of cracking, deflections and bearing capacity of reinforced concrete arches was determined; using a software complex "SCAD" the stress-deformed state of reinforced concrete two-hinged arches considering cracks and deflections, acquired during the process of uploading at different loading schemes was first defined; implemented - for designing and construction of a residential complex with underground parking and shopping premises located in 50 Protsenko Str.