The influence of the presence of a double transverse stiffener on local stresses in the web under a locally distributed load in the middle span of a welded I-beam is investigated, as well as the method of load application: in the first case - the load is localized on the upper chord only above the wall section; in the second case - the load acts on the section of the upper chord with width «b» perpendicular to the beam web. Calculations of the stress-strain state of the beam were carried out by the finite element method. The beam computational model was created using three dimensional (3D) solid elements. The loading applied up to the full exhaustion of the bearing capacity of the welded I-beam. The I-beam material behavior is described by the Prandtl diagram. The yielding condition is assumed by the von Mises plasticity criterion. On the basis of the research results, it is concluded that placing transverse web stiffeners under a locally distributed load applied to the upper flange of the welded I-beam does not increase the load-bearing capacity of the web, except for the zones directly adjacent to the transverse stiffeners.