ABSTRACT
This chapter presents the seismic analysis and design of a newly developed steel braced frame system called buckling-restrained braced frames (BRBFs). After a brief introduction of the conventional braced frame systems that include the concentrically and eccentrically braced frames, the remainder of the chapter is devoted to the concept of buckling-restrained braces (BRBs), the development of BRBs in several countries, the behavior of BRBs at the component, the subassembly and the system levels. Testing requirements as well as seismic design procedures proposed by SEAOC-AISC are also presented.
