| Distributed TLDs in RC floors and their vibration reduction efficiency |
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| 作者姓名： | 叶列平 陆新征 曲哲 侯建群 |
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| 作者单位： | Key Laboratory of Structural Engineering and Vibration of China Education Ministry Department of Civil Engineering Tsinghua University，Key Laboratory of Structural Engineering and Vibration of China Education Ministry Department of Civil Engineering Tsinghua University，Key Laboratory of Structural Engineering and Vibration of China Education Ministry Department of Civil Engineering Tsinghua University，Tsinghua Institute of Architectural Design，Beijing 100084 China Profess，Beijing 100084 China Associate Profess，Beijing 100084 China Ph.D.，Beijing 100084 China Senior Engineer |
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| 基金项目： | Cultivation Fund of the Key Grant Scientifi c and Technical Innovation Project, Ministry of Education of China Under Grant No.704003 |
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| 摘 要： | A novel distributed tuned liquid damper （DTLD） for reducing vibration in structures is proposed in this paper. The basic working principle of the DTLDs is to fill the empty space inside the pipes or boxes of cast-in-situ hollow reinforced concrete （RC） floor slabs with water or other liquid. The pipes or boxes then work as a series of small TLDs inside the structure, to increase the damping ratio of the entire structural system. Numerical simulation that accounts for the fluid- structure conpling effect is carried out to evaluate the vibration-reduction efficiency of the DTLDs. The results show that the DTLDs are able to considerably increase the damping of the structure and thus reduce its vibration. An additional benefit is that the DTLDs do not require architectural space to be added to the structure.
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| 关 键 词： | 分布式谐调液体阻尼器 流体结构 振动 地震 |
| 收稿时间： | 1 July 2007 |
| 修稿时间： | 30 August 2007 |
Distributed TLDs in RC floors and their vibration reduction efficiency |
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| Lieping?Ye,Xinzheng?Lu,Zhe?Qu,Jianqun?Hou.Distributed TLDs in RC floors and their vibration reduction efficiency[J].Earthquake Engineering and Engineering Vibration,2008,7(1):107-112. |
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| Authors: | Lieping Ye Xinzheng Lu Zhe Qu Jianqun Hou |
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| Institution: | 1. Key Laboratory of Structural Engineering and Vibration of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China
2. Tsinghua Institute of Architectural Design, Beijing 100084, China |
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| Abstract: | A novel distributed tuned liquid damper (DTLD) for reducing vibration in structures is proposed in this paper. The basic working principle of the DTLDs is to fill the empty space inside the pipes or boxes of cast-in-situ hollow reinforced concrete (RC) floor slabs with water or other liquid. The pipes or boxes then work as a series of small TLDs inside the structure, to increase the damping ratio of the entire structural system. Numerical simulation that accounts for the fluid-structure coupling effect is carried out to evaluate the vibration-reduction efficiency of the DTLDs. The results show that the DTLDs are able to considerably increase the damping of the structure and thus reduce its vibration. An additional benefit is that the DTLDs do not require architectural space to be added to the structure. |
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| Keywords: | distributed tuned liquid damper (DTLD) fluid-structure interaction (FSI) vibration reduction hollow floor slab |
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