Experimental study and finite element analysis of a buckling-restrained brace consisting of three steel tubes with slotted holes in the middle tube
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- 作者：Zhang Dongbina ; Nie Xina ; Pan Pengb ; panpeng@mail.tsinghua.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Wang Mengzia ; Deng Kailaia ; Chen Yabina
- 关键词：Buckling-restrained brace ; Three steel tubes ; Slotted hole ; Cyclic loading test ; Finite element analysis
- 刊名：Journal of Constructional Steel Research
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：124
- 期：Complete
- 页码：1-11
- 全文大小：2650 K
文摘
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A novel buckling-restrained brace comprising three circular steel tubes with different diameters is proposed.
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Long slotted holes are arranged on the middle tube, and the inner and outer tubes restrain the out-of-plane deformation of the middle tube.
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Cyclic loading tests were conducted to investigate performance of the new buckling-restrained braces.
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A finite element model was established to analyze the influence of the size and number of the slotted holes.
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When the opening-hole ratio is 0.2 and 2 × 2 slotted holes are arranged on the middle tube, the buckling-restrained brace exhibits excellent performance.