Autor: |
Yuanqing Wang, Xue Qi, Toshio Makino, Hong Yan, Peng Pan |
Rok vydání: |
2012 |
Předmět: |
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Zdroj: |
Applied Mechanics and Materials. :3159-3165 |
ISSN: |
1662-7482 |
Popis: |
In order to reduce seismic responses of structures, low-yield point steel has been used for dampers due to its excellent energy dissipation capacity. However, few researches about the low-yield point steel dampers have been conducted in China so far. This paper mainly presents an experimental study on two buckling-restrained braces (BRBs) which take an in-line steel plate as the core and a double-web wide flange steel member as the outer unit. Low-yield point steel LY100 is taken as the core material and conventional steel SN400 is taken as the outer material. Uniaxial cyclic loading tests of two low-yield point steel BRBs (LYS-BRB) were conducted to investigate their hysteretic behavior and energy dissipation capacity. The two LYS-BRBs yielded at rather small displacement and their accumulated plastic deformation ratios reached 1639 and 1437, respectively. Significant strain-hardening behavior can be observed in the hysteresis curves of LYS-BRBs and the maximum cyclic stress reached 3.85 times the yield stress. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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