[1]王卫锋,王文东..香港汀九大桥自振特性测量[J].郑州大学学报(工学版),2001,22(02):39-42.[doi:10.3969/j.issn.1671-6833.2001.02.012]
　WANG Weifeng,Wang Wendong.Measurement of self-resonance characteristics of Tingjiu Bridge, Hong Kong[J].Journal of Zhengzhou University (Engineering Science),2001,22(02):39-42.[doi:10.3969/j.issn.1671-6833.2001.02.012]

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香港汀九大桥自振特性测量()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

22

期数:

2001年02期

页码:

39-42

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Measurement of self-resonance characteristics of Tingjiu Bridge, Hong Kong

作者:

王卫锋; 王文东.

华南理工大学交通学院,, 华南理工大学建筑学院,

Author(s):

WANG Weifeng; Wang Wendong

关键词:

自振特性;  模态分析;  环境振动

Keywords:

self-oscillation characteristics;  modal analysis;  Environmental vibration

DOI:

10.3969/j.issn.1671-6833.2001.02.012

文献标志码:

A

摘要:

香港汀九大桥是一座三塔四索面的特大斜拉桥,结构新颖.为了进行更准确的抗风抗震分析,以及将来桥梁的健康检测,实验测量桥梁的自振特性是必不可少的.根据汀九大桥环境激励(主要是风)下桥振动的加速度传感器数据,利用谱分析方法来确定振型及对应的固有频率,通过半功率带宽法测得阻尼比.振型及对应的固有频率与有限元分析结果基本吻合.

Abstract:

Hong Kong Ting Kowloon Bridge is a three-tower, four-cable-stayed bridge with novel structure. In order to carry out more accurate wind and seismic analysis, as well as future bridge health testing, experimental measurement of the self-vibration characteristics of bridges is essential. According to the acceleration sensor data of the vibration of the bridge under the environmental excitation (mainly wind) of the Tingjiu Bridge, the mode shape and corresponding natural frequency were determined by spectral analysis method, and the damping ratio was measured by the half-power bandwidth method. The mode shape and corresponding natural frequency are basically consistent with the finite element analysis results.

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