When designing a structure based on the elastic theory, the rules of superposition are used to combine the applied load conditions on the structure. However, the rules of superposition are no longer correct in the design’ case based on the plastic method. Each load combination can have a different failure mechanism, and each combination of loads should be considered separately. The position of plastic hinges in the frame varies depending on the type of load, the shape and the physical properties of the frame. To determine the position and minimum number of plastic hinges required for a structure with a constant load, a variety of analysis methods were proposed. However, the most widely used are the energy method and the equilibrium method. In this paper, the authors have researched and found the mechanism requires the minimum load, establishing the limiting capacity of the frame, the load when it is the actual destructive load. A framed structure designed using the above analysis has resulted in steel framing savings of up to 10%.