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The methods which take place in current building codes and used in seismic design of structures are generally linear elastic. Inelastic behavior of the structures under the effect of earthquake is considered indirectly in seismic design codes. Recent studies enable inelastic behavior of structures to be taken into account properly in the structural design. In this study, a calculation method oriented towards the design of new structures which fulfill the predefined interstory drift ratio according to the usage function of the structures was offered by considering the inelastic behavior of the structural members and by using the energy balance of the structures. Interstory drift ratios when the steel structure displacements reach the target displacements were compared with the initial interstory drift ratios and the results were interpreted.