An experimental and numerical study on the innovative metallic box-section damper for improving the behavior of CBF systems

The susceptibility of the diagonal member of the Concentrically Braced Frames (CBFs) to buckling reduces the energy-dissipating capacity of the CBFs. Despite of high ultimate strength and stiffness of the CBFs as considerable advantages, its shortcoming (low dissipating energy capacity) is accounted as an important dilemma for this system.