| Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations -- II： Experiment |
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| 引用本文： | 郭安薪,徐幼麟,李惠.Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations -- II： Experiment[J].地震工程与工程振动(英文版),2007,6(4):417-424. |
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| 作者姓名： | 郭安薪 徐幼麟 李惠 |
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| 作者单位： | Guo Anxin（School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China） ;
Y L Xu（Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hung Hom,Hong Kong,China） ;
Li Hui（School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China） ; |
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| 基金项目： | Area Strategic Development Program in Structural Control and Intelligent Building from The Hong Kong Polytechnic University; National Natural Science Foundation of China Under Grant No.50408011 |
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| 摘 要： | The possibility of using a multi-stage pendulum mass damper(MSPMD) to control wind-induced vibration of a single column tower of a cable-stayed bridge during construction was studied theoretically in part Ⅰ of this work.In this paper,the performance of the MSPMD for reducing bridge tower vibration is studied experimentally.A MSPMD model and a tower model of the bridge with geometry scaling of 1100 were designed and manufactured.Calibration of the MSPMD model with different wire lengths is conducted to verify the analytical model of the damper.A series of tests for the uncontrolled freestanding tower,tower with cables,and tower with MSPMD model are then performed under harmonic and white noise excitations.The experimental results show that the responses of the tower model significantly decrease with the installation of the MSPMD model,which demonstrates the effectiveness of the MSPMD to mitigate the vibration of the bridge tower.
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| 关 键 词： | 实验研究 斜拉桥 桥柱 摇摆幅度 震动控制 |
| 收稿时间： | 19 June 2007 |
| 修稿时间： | 28 July 2007 |
Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations — II: Experiment |
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| Guo?Anxin,Y.?L.?Xu,Li?Hui.Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations — II: Experiment[J].Earthquake Engineering and Engineering Vibration,2007,6(4):417-424. |
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| Authors: | Guo Anxin Y L Xu Li Hui |
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| Institution: | [1]School of Civil Engineering, Harbin institute of Technology, Harbin 150090, China [2]Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hung Horn, Hong Kong, China |
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| Abstract: | The possibility of using a multi-stage pendulum mass damper (MSPMD) to control wind-induced vibration of a single column tower
of a cable-stayed bridge during construction was studied theoretically in part I of this work. In this paper, the performance
of the MSPMD for reducing bridge tower vibration is studied experimentally. A MSPMD model and a tower model of the bridge
with geometry scaling of 1:100 were designed and manufactured. Calibration of the MSPMD model with different wire lengths
is conducted to verify the analytical model of the damper. A series of tests for the uncontrolled freestanding tower, tower
with cables, and tower with MSPMD model are then performed under harmonic and white noise excitations. The experimental results
show that the responses of the tower model significantly decrease with the installation of the MSPMD model, which demonstrates
the effectiveness of the MSPMD to mitigate the vibration of the bridge tower.
Supported by: Area Strategic Development Program in Structural Control and Intelligent Building from The Hong Kong Polytechnic University;
National Natural Science Foundation of China Under Grant No. 50408011 |
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| Keywords: | experimental study cable-stayed bridge single column tower multi-stage pendulum mass damper vibration control |
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