ANALYSIS OF THE STRESS-STRAIN STATE OF TRAVEL PIPES WITH THE USE OF HARDWARE AND SOFTWARE COMPLEX

In the work, the stress-strain state in the structural elements of reinforced concrete span structures of railway overpasses under its own weight and temporary load based on experimental and numerical methods was studied. Based on the analysis of the numerical results of the stress-strain state of the span structures of the railroad overpass, it was proved that for comparison assessment with the normalized stress range, the use of 2 loading options is sufficient as a static load: hitch and raft. The results of the stress-strain state in the girder reinforced concrete span structures of the overpass can be used in the calculations of seismic stability and stability of similar structures with an increase in the operational load on railway bridges. Proved the need for periodic monitoring of the stress-strain state of artificial structures under operational loads in order to determine the actual technical condition of structures, effective assessment of the reliability of bridge structures and to establish the correspondence between the design scheme and the actual working structures on the main lines of Kazakhstan.