| 利用惯容隔震系统的结构层间隔震研究 |
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| 引用本文： | 张瑞甫,吴明瑞,周方圆,吴应雄,江洁玲.利用惯容隔震系统的结构层间隔震研究[J].世界地震工程,2020,0(4):008-16. |
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| 作者姓名： | 张瑞甫 吴明瑞 周方圆 吴应雄 江洁玲 |
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| 作者单位： | 同济大学 土木工程防灾国家重点实验室,上海 200092;同济大学 结构防灾减灾工程系,上海 200092;同济大学 结构防灾减灾工程系,上海 200092;华中科技大学 土木工程与力学学院,武汉 430074;华中科技大学 土木工程与力学学院,武汉 430074;福州大学 土木工程学院,福州 350116;同济大学 结构防灾减灾工程系,上海 200092 |
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| 基金项目： | 国家自然科学基金;中国地震局地震工程与工程振动重点实验室重点专项;工程力学研究所基本科研业务费专项 |
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| 摘 要： | 层间隔震技术对于结构竖向不规则以及结构增层等状况有良好的适用性。然而，层间隔震可能出现的较大隔震层变形会带来结构设计的困难。通过在隔震层中设置阻尼元件可以减少变形，但是过大的阻尼出力和过多的数量需求可能导致空间布置和安装不便。惯容元件为解决以上问题提供了一种新的途径。该研究提出采用惯容隔震系统作为层间隔震提高能量耗散效率的手段以控制地震响应，同时也给出了基于性能需求的惯容层间隔震的参数优化设计方法。并以一个标准钢结构模型验证了方法的有效性。结果表明:惯容元件的使用显著降低了上部子结构的地震响应和隔震层的变形，惯容系统实现了预期的耗能增效作用。
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| 关 键 词： | 层间隔震 惯容系统 耗能增效 性能需求导向设计 |
Research on mid-story isolation of structure using inerter isolation system |
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| ZHANG Ruifu,' target="_blank" rel="external">,WU Mingrui,' target="_blank" rel="external">,ZHOU Fangyuan,WU Yingxiong,JIANG Jieling.Research on mid-story isolation of structure using inerter isolation system[J].World Information On Earthquake Engineering,2020,0(4):008-16. |
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| Authors: | ZHANG Ruifu " target="_blank">' target="_blank" rel="external"> WU Mingrui " target="_blank">' target="_blank" rel="external"> ZHOU Fangyuan WU Yingxiong JIANG Jieling |
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| Institution: | 1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;2. Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China;3. School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China;4. College of Civil Engineering, Fuzhou University, Fuzhou 350116, China |
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| Abstract: | Mid-story isolation technology is applicable to vertical irregularities of structures and added-story structures. However, the large deformation of the isolation layer may cause the difficulty of structural design. Although the deformation can be reduced by adding damping elements in the isolation layer, but excessive damping force and quantity demand may lead to inconvenient spatial arrangement and installation. Inerter provides a new way to solve the above problems. In this study, inerter isolation system is proposed as a means to improve the energy dissipation efficiency of mid-story isolation to control the seismic response. The validity of the proposed method is verified by a 7-story steel benchmark model. The results show that the use of inerter can significantly reduce the seismic response of the upper substructure and the deformation of the isolation layer, and the inerter system can achieve the expected damping enhancement effect. |
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| Keywords: | mid-story isolation inerter system damping enhancement effect performance-oriented design |
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