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Design and Testing of an Enhanced-Elongation Telescoping Self-Centering Energy-Dissipative Brace
| 题名： | Design and Testing of an Enhanced-Elongation Telescoping Self-Centering Energy-Dissipative Brace |
| 其他题名： | AISC.(2005)."Seismic provisions for structural steel buildings,including supplement no.1."ANSI/AISC 341s1-05,Chicago. |
| 正文语种： | 英文 |
| 作者： | Jeffrey Erochko |
| 关键词： | Residual drifts;Self-centering systems;Steel frames;Seismic effects |
| 摘要： | The self-centering energy-dissipative (SCED) brace is a new steel bracing member that provides both damping and recentering capability to a structure, while reducing or eliminating residual building deformations after major seismic events. Previous SCED brace designs exhibited full self-centering capability over frame lateral deformations ranging from 1.5 to 2.0％ of a typical building story height owing to the elongation capacity of the tendons comprising the system. To overcome this limitation, a new enhanced-elongation telescoping SCED (T-SCED) brace has been developed that allows for self-centering response over two times the range achieved with the original SCED bracing system. A prototype design of this proposed system was fabricated and tested quasi-statically and dynamically in a full-scale vertical steel frame. It exhibited full self-centering behavior in a single story frame that was laterally deformed to 4％ of its story height. This new T-SCED brace also satisfied standard testing protocols for buckling restrained braces. |
| 出版年： | 2015 |
| 论文唯一标识： | P-26Y2015V141N06016 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001109 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 141 |
| 期： | 06 |
| 页码： | 168-178 |
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