THE RESULTS OF EXPERIMENTAL RESEARCHS OF THE REINFORCED CONCRETE BEAM SPAN STRUCTURE OF THE BRIDGE BY RECONSTRUCTION STAGES
On the network of state and local roads, a significant number of bridges with precast or monolithic span structures of small and medium spans are constructed according to TP-56. At present time, their normalized period of exploitation of 25–30 years is exceeded in 2–2.5 times and they continue to be exploited with unsatisfactory exploitative and technical and economic parameters. Therefore, for further normal exploitation, they need to be reconstructed with the restoration of normalized exploitative parameters.