The aim of the research is to improve calculation methods of the resource of metal span structures operated in railway bridges on the basis of technical diagnostics of the actual state of the structures.
The scientific novelty of the dissertation research is the following: there has been improved methods for determining the causes of defects and damages during the construction and operation of span structures with solid scientifical ground on their bases; there has been an improvement of dependencies for the description of the measure of damage accumulation on the basis of the experimentally determined friction coefficient/; formulas for calculating the resource of span structures have been improved with application of the main provisions of the theory of damage accumulation; there has been a development of the method of estimating the residual life of the exploited metal span structures from the data of technical diagnostics of the actual state of structures.
