Modal Test of Long Span Bridges Based on Ambient Excitation

HU Li-ping; HAN Da-jian; YU Zhi-tao

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Modal Test of Long Span Bridges Based on Ambient Excitation

更新时间：2026-05-27

- Modal Test of Long Span Bridges Based on Ambient Excitation
- Vol. 22, Issue 1, Pages: 100-104(2005)
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- Published：2005
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胡利平, 韩大建, 禹智涛. 基于环境激励的大跨度桥梁模态试验[J]. 广东工业大学学报, 2005, 22(1): 100-104.

HU Li-ping, HAN Da-jian, YU Zhi-tao. Modal Test of Long Span Bridges Based on Ambient Excitation[J]. 2005, 22(1): 100-104.
胡利平, 韩大建, 禹智涛. 基于环境激励的大跨度桥梁模态试验[J]. 广东工业大学学报, 2005, 22(1): 100-104. DOI：

HU Li-ping, HAN Da-jian, YU Zhi-tao. Modal Test of Long Span Bridges Based on Ambient Excitation[J]. 2005, 22(1): 100-104. DOI：

摘要

介绍一种相对简单而实用的基于环境激励的大跨度桥梁模态测试分析方法

该方法仅利用结构的动态响应信号作频谱分析即可获得模态频率、振型、阻尼等主要模态参数

处理速度快

并且结果直观可靠.通过对广东金马大桥斜拉桥的实桥测试

证明该方法应用于工程实际是完全可行的.

Abstract

This paper presents the theory and methodology of a relatively simple and practical modal test approach based on ambient excitation for long span bridges. In this approach

some fundamental parameters

such as mode shapes and their corresponding frequencies as well as the damping ratios

can be found by a fast process of spectra analysis of the measured response signal. Also

its results are direct and reliable. The successful practices of the modal test on Guangdong Jinma Cable-stayed Bridge shows that the method is valid.

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references

李德葆,陆秋海著.实验模态分析及其应用[M]. 科学出版社, 2001

(比)沃德·海伦(WardHeylen)等著,白化同,郭继忠译.模态分析理论与试验[M]. 北京理工大学出版社, 2001

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