Estimation of Displacement Response in Steel Plate Girder Bridge Using a Single MEMS Accelerometer

被引：9

作者：

Morichika, Shogo ^{[1
]}

Sekiya, Hidehiko ^{[2
]}

Zhu, Yanjie ^{[2
]}

Hirano, Shuichi ^{[3
]}

Maruyama, Osamu ^{[2
]}

机构：

[1] Tokyo City Univ, Grad Sch Integrat Sci & Engn Civil Engn, Tokyo 1588557, Japan

[2] Tokyo City Univ, Dept Urban & Civil Engn, Tokyo 1588557, Japan

[3] Metropolitan Expressway Co Ltd, Maintenance & Transportat Dept, Inspect & Repair Promot Off, Maintenance Technol Sect, Tokyo 1008930, Japan

来源：

IEEE SENSORS JOURNAL | 2021年 / 21卷 / 06期

关键词：

Bridge circuits; Micromechanical devices; Acceleration; Accelerometers; Wavelet transforms; Sensors; Frequency measurement; Bridge monitoring; displacement measurement; MEMS accelerometer; wavelet transform;

D O I：

10.1109/JSEN.2021.3051697

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Live load-induced deformation is a significant evaluation index for bridge maintenance. To measure a structural displacement response, a method using several MEMS (Micro Electro Mechanical Systems) accelerometers has previously been developed. However, this method requires several sensors, and for improved practicality, a reduction in the number of sensors is desired. Therefore, in this article, a simple displacement monitoring method is proposed that uses only one MEMS accelerometer, which is installed at the longitudinal center of the target bridge. A wavelet transform-based method is applied to the acceleration records to identify the integration range for displacement estimation. The accuracy was evaluated on an actual in-service bridge. The result indicates high accuracy of displacement measurements, with only 5 error when compared with the values recorded by a contact displacement gauge.

引用

页码：8204 / 8208

页数：5

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