Metallic-yielding type of dampers is one of the oldest and most widely used passive energy dissipation devices to decrease dynamic response of buildings subjected to strong ground motions. These devices utilize the yielding of mild-steel plates, like Added Damping and Stiffness (ADAS) elements. The proper selection of design parameters of these devices has an important effect on the structural inelastic behavior. One of these parameters is ratio of the bracing member stiffness to the damper devise stiffness (B/D). Previous studies recommended that a B/D ratio of about 2 be used for the design of the ADAS elements in all stories of the buildings. In this paper, it is shown that using a fixed amount of B/D ratio for all stories may not lead to the uniform distribution of ductility. Therefore, the employment of such a B/D distribution does not guarantee the optimum use of dampers in the nonlinear range of behavior. Here, a method based on the concept of uniform distribution of deformation is implemented to optimize the dynamic response of building frames with bracing members and ADAS devices subjected to several strong ground motion records considering non-fixed B/D ratio in different stories. The results of nonlinear dynamic analyses for several buildings with different heights show that a B/D ratio more than 2 is needed in the upper stories, whereas a ratio less than 2 is needed in the lower stories for optimum dynamic behavior of the building.