Lateral barrier systems, deprecated seismic energy that enters the structure through persistent structural deformations in its main structural members. This function results in significant structural damage in buildings after hard earthquakes that in many cases of repairing these failures, even if possible, will not have economic explanation. Cradle based systems are a new type of lateral load resisting systems that has been created the goal of reducing the permanent structural defects in the structure after the occurrence of hard earthquakes and avoid causing failures in key structural members by directing these failures to interchangeable members that are developing fatly. In a frame with a cradle function, the columns in the seismic bearing frame are not connected to the foundation and can be rotated on foundation. Post-tension cable connects the top of the frame to the foundation, returns the rotating frame to its original state and seismic energy in each frame period is depreciated from the plastic deformation is in interchangeable elements that are called fuses. in this research, seismic behavior of three structures with 5, 10 and 15 floors with cradle function and once without this has been evaluated performance through nonlinear dynamical analysis of time histories, under seven acceleration maps: Kobe, Northrige, Kocaeli, Landers, Loma Prieta, Cape Mendocino, San Fernando. Results show that the cradle braced frame system has a very good performance in seismic energy evacuation. Also, the permanent displacement of the structure at the end of the loading path is negligible.