Automated mobile vibration measurement and signal analysis for bridge scour prevention and warning
Journal
Automation in Construction
Journal Volume
134
Date Issued
2022
Author(s)
Abstract
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 time-history 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. ? 2021 Elsevier B.V.
Subjects
Bridge vibration frequency
Indirect approach for measuring vibration
Nondestructive vibration tests
Bridges
Floods
Nondestructive examination
Scour
Signal analysis
Bridge safety
Bridge vibration
Frequency measurements
Measurement equipment
Non destructive
Nondestructive vibration test
Vibration frequency
Vibration test
Vibration analysis
SDGs
Type
journal article