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Hybrid Testing of the Stiff Rocking Core Seismic Rehabilitation Technique
| 题名： | Hybrid Testing of the Stiff Rocking Core Seismic Rehabilitation Technique |
| 其他题名： | AISC.(2010a)."Seismic provisions for structural steel buildings."AISC 341,Chicago. |
| 正文语种： | 英文 |
| 作者： | Derek Slovenec |
| 关键词： | Seismic tests;Rehabilitation;Hybrid methods;Substructures;Steel structures |
| 摘要： | The use of a stiff rocking core (SRC) has been proposed as a seismic rehabilitation technique to mitigate soft-story response in low-rise to midrise steel concentrically braced frame (CBF) structures. This technique uses a stiff, elastic "spine" to provide corrective lateral forces at the onset of soft-story response but otherwise remains passive for the first mode vibration response. Yielding link element can also be incorporated in the SRC-to-structure connection to dissipate energy and reduce overall building drift. An experimental testing program was performed to investigate the fundamental behaviors of the SRC rehabilitation technique applied to two approximately 1/3-scale prototype CBFs representative of modern and older design practices. Hybrid testing methods were used to simulate building dynamics, the influence of gravity framing, and response of upper stories for a midrise prototype building. Each prototype frame was subjected to two seismic ground motions to evaluate cumulative damage followed by quasi-static cyclic testing to failure. The results from these tests indicate that the SRC is effective at mitigating soft-story response by vertically redistributing lateral demands throughout the structure. |
| 出版年： | 2017 |
| 论文唯一标识： | P-26Y2017V143N09007 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001814 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 143 |
| 期： | 09 |
| 页码： | 61-72 |
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