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Buckling‐restrained brace with high structural performance
Author(s) -
Iwata Mamoru,
Midorikawa Mitsumasa,
Koyano Kazuhisa
Publication year - 2018
Publication title -
steel construction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.443
H-Index - 8
eISSN - 1867-0539
pISSN - 1867-0520
DOI - 10.1002/stco.201810006
Subject(s) - brace , buckling , structural engineering , dissipation , materials science , engineering , physics , thermodynamics
Abstract The authors have studied the buckling‐restrained brace providing a stable hysteretic characteristic even under high‐strain conditions. The structural performance of the buckling‐restrained brace is represented by the evaluation formula that is the lower limit of the cumulative plastic strain energy ratio. However, as earthquakes are becoming much longer, so it is necessary to research and develop a new buckling‐restrained brace with a higher energy dissipation capacity. In this paper, our past studies are reviewed and the conditions of high‐performance of buckling‐restrained braces extracted. The buckling‐restrained brace considered was tested. As a result, a buckling‐restrained brace with a larger cumulative plastic strain energy ratio is proposed.