The effect of fatigue damage in the elements of the association on the overall reliability of the spans

In this paper, the need to take into account the fatigue damage of the elements of the association on the overall reliability of steel-reinforced concrete superstructures is considered. The article discusses research on the dependence of the shear stiffness of flexible pin stops on the indicator of accumulated damage, the effect of reducing the shear stiffness of the elements of the association on operational reliability and reliability in the I group of limit states. Conclusions are drawn about the need to take into account the accumulation of fatigue damage in the abutments of steel-reinforced concrete superstructures when determining quantitative indicators of overall reliability for bridge structures affected by temporary cyclic loads.