The scheme and its testing for calculating continuous thin-walled steel-reinforced concrete beams for constant and temporary load taking into account crack opening are described. The moving load is set in the form of a concentrated force applied with eccentricity with respect to the axis of the bar. For a bar experiencing bending and torsion deformations, analytical expressions for forces and displacements depending on the position of the temporary load are obtained, enveloping bending moment and bimoment diagrams are constructed. Based on the diagrams, the largest normal tension stresses were calculated at the lower points of the main beams and at the points of the reinforced concrete slab. An algorithm for calculating a continuous steel-reinforced concrete beam for a moving load is described taking into account crack opening. Trajectories of crack opening in a steel-reinforced concrete slab under a moving load are constructed.