Measures to Increase the Building Steel Structures’ Bearing Capacity

The issue of increasing the building structures steel elements’ bearing capacity using the surface plastic deformation (SPD) method, is considered, applying the complex assessment method of the factors’ parameters acting on the structure and fatigue resistance, which, in contrast to the current principle of differential evaluation, more accurately takes into account the structure’s state in the operating conditions. Interrelated functional dependencies between these indicators are identified and the parametric explanations’ systems taking into account the dominance of a certain factor in the design work, are made. These systems of equations make it possible to calculate the interrelated indicators and assess the impact of each of them on the structure’s bearing capacity.