| Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations --Ⅰ： Theory |
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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 --Ⅰ： Theory[J].地震工程与工程振动(英文版),2007,6(3):295-306. |
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| 作者姓名： | 郭安薪 徐幼麟 李惠 |
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| 作者单位： | [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 Hom, Hong Kong, 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, and National Natural Science Foundation of China Under Grant No. 50408011,Acknowledgement Financial support from The Hong Kong Polytechnic University through its Area Strategic Development Program in Structural Control and Intelligent Building, and National Natural Science Foundation of China with contract No. 50408011 is greatly appreciated by the authors. |
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| 摘 要： | In this paper, wind-induced vibration control of a single column tower of a cable-stayed bridge with a multi- stage pendulum mass damper （MSPMD） is investigated. Special attention is given to overcoming space limitations for installing the control device in the tower and the effect of varying natural frequency of the towers during construction. First, the finite element model of the bridge during its construction and the basic equation of motion of the MSPMD are introduced. The equation of motion of the bridge with the MSPMD under along-wind excitation is then established. Finally, a numerical simulation and parametric study are conducted to assess the effectiveness of the control system for reducing the wind-induced vibration of the bridge towers during construction. The numerical simulation results show that the MSPMD is practical and effective for reducing the along-wind response of the single column tower, can be installed in a small area of the tower, and complies with the time-variant characteristics of the bridge during its entire construction stage.
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| 关 键 词： | 斜拉桥 震动实验 桥梁结构 风诱导实验 |
| 文章编号： | 1671-3664（2007）03-0295-12 |
| 收稿时间： | 19 June 2007 |
| 修稿时间： | 2007-06-19 |
Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations — I: Theory |
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| Guo?Anxin,Xu?Youlin,Li?Hui.Dynamic performance of cable-stayed bridge tower with multi-stage pendulum mass damper under wind excitations — I: Theory[J].Earthquake Engineering and Engineering Vibration,2007,6(3):295-306. |
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| Authors: | Guo Anxin Xu Youlin 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 Hom, Hong Kong, China |
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| Abstract: | In this paper, wind-induced vibration control of a single column tower of a cable-stayed bridge with a multi-stage pendulum
mass damper (MSPMD) is investigated. Special attention is given to overcoming space limitations for installing the control
device in the tower and the effect of varying natural frequency of the towers during construction. First, the finite element
model of the bridge during its construction and the basic equation of motion of the MSPMD are introduced. The equation of
motion of the bridge with the MSPMD under along-wind excitation is then established. Finally, a numerical simulation and parametric
study are conducted to assess the effectiveness of the control system for reducing the wind-induced vibration of the bridge
towers during construction. The numerical simulation results show that the MSPMD is practical and effective for reducing the
along-wind response of the single column tower, can be installed in a small area of the tower, and complies with the time-variant
characteristics of the bridge during its entire construction stage.
Sponsored by: Area Strategic Development Program in Structural Control and Intelligent Building from The Hong Kong Polytechnic University,
and National Natural Science Foundation of China Under Grant No. 50408011 |
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| Keywords: | multi-stage pendulum mass damper cable-stayed bridge single column tower wind-induced vibration |
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