The strengthening technologies’ application in building steel structural elements

The issues of increasing the bearing capacity and fatigue resistance of structural building elements, working surfaces and edge transition sections affected by the surface plastic deformation, are considered. The regression relationships between the influencing factors’ parameters and fatigue resistance coefficients are revealed. Taking into account their relationship, the multiparametric functional relationships and systems of equations are compiled making possible to determine the optimal values of the remaining parameters in the case of the priority factor proposed parameter’s (coefficient) presence.