| Z型支撑分级屈服阻尼器抗震性能研究 |
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| 引用本文： | 高华国,张令心,史欣鑫,宁宝宽,杨帆.Z型支撑分级屈服阻尼器抗震性能研究[J].土木工程学报,2020,53(Z2):94-100. |
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| 作者姓名： | 高华国 张令心 史欣鑫 宁宝宽 杨帆 |
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| 作者单位： | 1. 中国地震局工程力学研究所，黑龙江哈尔滨150080；2. 中国地震局地震工程与工程振动重点实验室，黑龙江哈尔滨150080；
3. 沈阳工业大学，辽宁沈阳110023；4. 沈阳建筑大学，辽宁沈阳110168 |
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| 摘 要： | 为实现阻尼器分级耗能屈服，文章提出一种基于Q235钢材由内部Z型支撑及两侧开孔钢板组合形成分级屈服金属阻尼器。通过对3组不同肢高Z型支撑分级屈服阻尼器施加水平低周往复位移加载，进行试验与ABAQUS模拟抗震滞回性能分析，探究Z型支撑分级屈服阻尼器耗能状态及抗震性能，揭示该阻尼器的耗能机理与破坏模态。研究结果表明：阻尼器可实现分级屈服，随着肢高减小，Z型支撑分级屈服阻尼器能更有效提高主体结构抗震滞回性能。
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| 关 键 词： | 低周往复位移加载 耗能机理 破坏模态 抗震滞回性能 |
Research on seismic performance of Z-supported graded yield damper |
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| Gao Huaguo Zhang Lingxin Shi Xinxin Ning Baokuan Yang Fan.Research on seismic performance of Z-supported graded yield damper[J].China Civil Engineering Journal,2020,53(Z2):94-100. |
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| Authors: | Gao Huaguo Zhang Lingxin Shi Xinxin Ning Baokuan Yang Fan |
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| Affiliation: | 1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin 150080, China;
3. Shenyang University of Technology,Shenyang 110023,China;4. Shenyang Jianzhu University,Shenyang 110168,China |
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| Abstract: | In order to realize the graded energy-consuming yield of the damper, this paper proposes a graded yielding metal damper based on Q235 steel, which is composed of internal Z-supports and steel plates with holes on both sides. By applying horizontal low-cycle forward displacement loading to three groups of Z supported graded yield dampers with different limb heights, the test and ABAQUS simulated seismic hysteretic performance analysis were carried out to explore the energy consumption state and seismic performance of the Z-type support graded yield dampers, revealing this Energy dissipation mechanism and failure modes of dampers. The research results show that the damper can achieve graded yielding. As the limb height decreases, the Z-supported graded yield damper can more effectively improve the seismic hysteretic performance of the main structure. |
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| Keywords: | low-cycle reciprocating displacement loading energy dissipation mechanism failure mode seismic hysteretic performance |
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