| Autor: |
Kuo-Wei Liao, Ting-Chang Lin, Min-Yuan Cheng, Shu-Hua Yeh, Yung-Fang Chiu, Yu-Wei Wu |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Automation in Construction. 134:104063 |
| ISSN: |
0926-5805 |
| DOI: |
10.1016/j.autcon.2021.104063 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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