Stepova O. Evaluation of the residual resources of the flexible reinforced concrete constructions having corrosion of the ferro-concrete reinforcement in the normal cracks

The object - beam reinforced concrete elements with cracks, operated in an electrolytic medium, aggressive to the fixture, the purpose - to evaluate the residual life of reinforced concrete beam elements subject to electrochemical corrosion of reinforcement in normal fractures; methods - analytical, experimental, method of mathematical experiment planning, methods of mathematical statistics and probability theory; novelty - first developed method of estimating the residual life of reinforced concrete beam elements, first developed and tested a mathematical model of makrogalvanicheskoy pair at a local reinforcement corrosion of reinforced concrete structures, new experimental data on the strength and deformability of concrete reinforcement to local corrosion damage; reasonable method calculate the strength of reinforced concrete beam with locally affected the tensile reinforcement in normal cracks, suggesting new methods of measurements of parameters for calculating the residual life; introduction - in surveys 3 objects Poltava and 1 facility in the Moscow region, industry - construction