An Enhanced Seismic Design Method for Steel Multi-Tiered Buckling-Restrained Braced Frames in Canada

Dr. Imanpour

Moad Bani


Moad Bani is an incoming M.Sc. student who completed his B.Sc. in Civil Engineering from the University of Alberta in spring 2020. His research work focuses on the seismic design and performance of steel Multi-tiered Buckling-Restrained Braced Frames (MT-BRBFs) in Canada.

MT-BRBFs are one of the most efficient seismic force-resisting systems used in tall single-storey buildings, such as sports facilities, auditoriums, and industrial structures. In MT-BRBFs, multiple bracing panels consisting of Buckling-Restrained Braces (BRBs) are vertically stacked along the height of a frame between the ground and roof level to create a vertical truss system. This configuration is typically used when it is not practical to employ a single bracing panel to laterally brace a tall storey height. Despite the extensive use of such frames in North America, particularly in high seismic regions, their design has not yet been addressed in the Canadian steel design standard. This lack of information has left designers without a unified and validated design strategy, which may lead to unsafe or inefficient structures being built. Moad's research aims to develop a deep understanding of the behavior of MT-BRBFs and provide a comprehensive design method to be used by design engineers.

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