This paper presents the behavior and design concept of an efficient structural steel system
based on the applications of buckling-restrained knee braces (BRKBs). The advantages of a
buckling-restrained knee-braced frame (BRKBF) include relatively simple connections,
reparability after an earthquake, and fewer obstructions than conventional bracing systems.
Various BRKBF configurations can be designed and detailed for different levels of strength,
stiffness, and ductility. BRKBFs are designed so that all inelastic activities are confined to the …