Railway bridge survey

Abstract

This scientific article addresses the issues of a survey of bridges in order to determine the need for reconstruction or repair measures at these facilities and to collect baseline data for the dismantling of railway reconstruction projects. Inspection of culverts is carried out in order to determine the need for the appointment of reconstructive or repair measures at these facilities and to collect baseline data for the development of railway reconstruction projects. An approximate list of survey work and measurements is given. The calculation models for the analysis of the stress-strain state (VAT) and the modal analysis of the structure are constructed according to the data provided in the form of working documentation for the structure in question. Models of reinforced concrete elements of the supporting structures of the overpass allow for the joint work of reinforcing elements and concrete filling. Concrete filling of structures of reinforced concrete blocks of superstructures of 16.5 m and 23.6 m, as well as frames and pedestals of intermediate supports of the overpass, are specified by volume elements. Reinforcing structural elements (frames, grids, wire bundles for prestressing concrete) of spans and structures of intermediate supports are defined by bar elements and take into account their spatial location in the concrete filling. The results of the calculation analysis of the supporting structures of the overpass through the single-track railway line are presented.