In classical design, to strengthen structures against earthquake and wind forces, braces and flexure frames are used as auxiliary system, while many of the common curtain defects result in a difference between the tensile and compressive strength of these braces and their deterioration. Cyclone loading. A special type of hysteresis dampers under the name of bumpy braces attempts to overcome these defects and, as an energy outlet, reduces the seismic damage of the structure and also optimizes its behavior.
These type of braces are more energy-absorbent and, as a result, a large amount of seismic energy absorbs lateral loads, thus reducing the energy absorbed by other elements and preventing damage to other structural elements, such as a The fuse acts for the structure. In this regard, using nonlinear static and nonlinear analysis, the seismic behavior of the flexural steel frame with convergent braiding and the folding frame with unbroken bracing in ordinary buildings and irregular buildings (the existence of soft floors) has been investigated. And seismic capacity of the structures have been evaluated and evaluated.