Modeling of live load influence in analisis of bridge structures endurance

This article presents the results of the research phase of existing methods for calculating the endurance of bridge structures. The presented stage of the analysis of the endurance of bridge structures is devoted to the creation of an algorithm for modeling the impact of moving loads on the controlled elements created. The process of obtaining the necessary initial data is described, including finite element modeling of the span and its subsequent structural part to obtain matrices and analyze surface effects. Available initial data and load characteristics were the basis for the development of a particular program for the analysis of the effects of loads on the bridge. It is shown that this algorithm can be used to compare the effects of design loads both among themselves and with the effects of possible actual loads.