Automated mobile vibration measurement and signal analysis for bridge scour prevention and warning

被引：20

作者：

Cheng, Min-Yuan ^{[1
]}

Liao, Kuo-Wei ^{[2
]}

Chiu, Yung-Fang ^{[3
]}

Wu, Yu-Wei ^{[1
]}

Yeh, Shu-Hua ^{[1
]}

Lin, Ting-Chang ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Construct Engn, Dept Civil & Construct Engn, 43,Sec 4, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Dept Bioenvironm Syst Engn, 1,Sec 4,Roosevelt Rd, Taipei 106, Taiwan

[3] Natl Acad Marine Res, 5F,25,Chenggong 2nd Rd, Kaohsiung 806, Taiwan

来源：

AUTOMATION IN CONSTRUCTION | 2022年 / 134卷

关键词：

Bridge vibration frequency; Indirect approach for measuring vibration; Nondestructive vibration tests; FOUNDATION SCOUR; DYNAMIC-RESPONSE; FREQUENCIES; VEHICLE;

D O I：

10.1016/j.autcon.2021.104063

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Flood scour resistance in river-crossing bridges is an interdisciplinary and complex topic that is influenced by multiple factors. Conducting detailed, manual assessments of many bridges is highly time-consuming and impractical. Bridge vibration frequencies have been proposed as an indirect index for assessing bridge safety. However, Taiwan has tens of thousands of bridges, making the installation of vibration-frequency measurement equipment on each bridge excessively costly. In this study, vibration-frequency measurement equipment was installed on a mobile vehicle platform designed to be driven to target bridge sites to collect and transmit timehistory vibration data. An indirect approach to measuring bridge vibration frequency was proposed and an investigation was conducted to determine whether differences between normal and post-flood vibration characteristics measured and analyzed using the method may offer an effective new approach to assessing bridge safety. Suggestion on bridge of close or open is provided according to the results of frequency analysis.

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