Buckling-restrained brace with high structural performance

Articles - Steel Construction Heft 1/2018

Seite: 3-9

Autoren: Iwata , Mamoru, Midorikawa, Mitsumasa, Koyano, Kazuhisa

DOI: 10.1002/stco.201810006

Stichworte: buckling-restrained brace, structural performance, cumulative plastic strain energy ratio, energy dissipation, compressive-to-tensile strength ratio, hysteresis characteristics, performance evaluation

Fachgebiete: Tests

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.

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Buckling-restrained brace with high structural performance

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