| 底部设置BRB自复位剪力墙抗震性能和韧性试验研究 |
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| 引用本文： | 蒋庆,王韶颖,冯玉龙,种迅,朱毅,周亚婷.底部设置BRB自复位剪力墙抗震性能和韧性试验研究[J].工程力学,2021,38(10):173-180. |
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| 作者姓名： | 蒋庆 王韶颖 冯玉龙 种迅 朱毅 周亚婷 |
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| 作者单位： | 1.合肥工业大学土木与水利工程学院，合肥 230009 |
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| 基金项目： | 国家自然科学基金项目(51708166)；中央高校基本科研业务费专项资金项目(JZ2019HGTB0086) |
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| 摘 要： | 提出一种底部设置屈曲约束支撑(BRB)的自复位混凝土剪力墙，提高了剪力墙的自复位能力和耗能能力，同时考虑了耗能构件可更换性。为了研究该自复位混凝土剪力墙的抗震性能和韧性，该文设计制作1片剪力墙试件和2组BRB构件，进行了拟静力试验和更换试验研究，分析了试件的破坏特征、滞回性能、自复位性能和可恢复性能等。试验结果表明:该文提出的自复位墙损伤主要集中在BRB上，其耗能能力较好，具有一定的自复位能力；BRB更换较为方便，更换前后自复位混凝土墙的抗震性能基本保持不变，表明其功能可恢复性较好。
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| 关 键 词： | 剪力墙 自复位 屈曲约束支撑 功能可恢复性 试验研究 |
| 收稿时间： | 2020-10-12 |
EXPERIMENTAL STUDY ON ASEISMIC PERFORMANCE AND RESILIENCE OF A SELF-CENTERING SHEAR WALL WITH BRBS AT BASE |
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| Affiliation: | 1.School of Civil Engineering, Hefei University of Technology, Hefei 230009, China2.Anhui Key Laboratory of Civil Engineering Structure and Materials, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | A self-centering concrete shear wall with buckling-restrained braces (BRBs) at its base is proposed to improve the self-centering and energy dissipation capacity of the shear wall and consider the replaceability of the energy-dissipating members. In order to study the aseismic performance and resilience of the shear wall, one shear wall and two groups of BRBs were designed and manufactured. The pseudo-static and replacement tests were conducted, and the failure modes, hysteresis, self-centering and earthquake-resilient performance of the specimens were studied. The results indicate that: the damage of self-centering shear wall is mainly concentrated on the BRBs, and the proposed wall has a good energy dissipation capacity and certain self-centering capability. The hysteretic performance of the self-centering shear wall before and after replacing BRBs remains basically unchanged, which indicates that it behaves a good earthquake-resilience. |
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