NDLI: Investigating vibration characteristics at concrete pavement joints using distributed optical fiber sensors

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Investigating vibration characteristics at concrete pavement joints using distributed optical fiber sensors

Content Provider	Scilit
Author	Bian, Z. Y. Zeng, M. Y. Zhao, H. D. Chen, H. Cheng, K.
Copyright Year	2021
Description	This paper aims to investigate vibration characteristics at concrete pavement joints. A vibration-sensing system based on Distributed Optical Vibration Sensing (DOVS) technology was established embedded into the concrete slabs. First, a full-scale test was conducted to investigate the vibrations of concrete pavement in different joints. A falling weight deflectometer (FWD) was employed in the full-scale test to apply impulse loads on those joints, with three different loading magnitudes and the corresponding vibrations of the loaded and unloaded concrete slab were captured by the DOVS-based system. Then, to analyze original signals from the vibration-sensing system, a signal processing method was proposed to extract features of vibration in the time and frequency domain. The results of the full-scale test suggest that frequency spectrum on the side of a loaded slab is stronger than it on the other side of an unloaded slab. The differences between LTE and the ratio of amplitude (ROA) vary significantly in frequency-domain and are influenced by the magnitudes of impulse load and the kinds of joint. However, the differences reach an extremum (< 0.005) in 200~225 Hz. Overall, these findings indicate the pavement vibration has the potential to assess the situation of joints, but the practicality under moving load requires further demonstration. Book Name: Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003251125-125&type=chapterpdf
Ending Page	786
Page Count	6
Starting Page	781
DOI	10.1201/9781003251125-125
Language	English
Publisher	Informa UK Limited
Publisher Date	2021-11-25
Access Restriction	Open
Subject Keyword	Book Name: Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements Joints Loaded Frequency Sensing Investigating Vibration Concrete Pavement
Content Type	Text
Resource Type	Chapter

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