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A Real-Time Bridge Pier Scouring Monitoring System Based on Hall-Effect Sensors

Authors:
Chen-Chia Chen
Ssu-Ying Chen
Wen-Ching Chen
Gang-Neng Sung
Jin-Ju Chue
Chih-Ting Kuo
Yi-Jie Hsieh
Chih-Chyau Yang
Chien-Ming Wu
Chun-Ming Huang

Keywords: bridge; piers; scour; senso; hall-effect

Abstract:
Scour around bridge pier is the major cause of bridge failure such as collapse resulted in loss of life and property. Most of available bridge pier scour sensors and approaches are very expensive, which is a challenge for mass deployment of numerous bridges. Our proposed scour monitor system utilized low-cost commercial sensors, hall-effect sensors (unit price < $1) that are capable of real-time measuring bridge pier scour with resolution of ca. 2.5 cm, and overall cost for single sensor node of my proposed work is at least 40% less expensive than existing work. After scour event, the typical output voltage difference of ~ 10 mV and the signal-to-noise ratio of ~ 10 were observed. After simple modified setup, the output voltage difference could be reached to ~300 mV. Moreover, the master-slave architecture of bridge pier scour monitoring system has scalability and flexibility for mass deployment. This technique has the potential for further widespread implementation in the field.

Pages: 152 to 156

Copyright: Copyright (c) IARIA, 2014

Publication date: November 16, 2014

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-374-2

Location: Lisbon, Portugal

Dates: from November 16, 2014 to November 20, 2014