Damage identification of concrete pavement joint using vibration transmissibility
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Date
2023-06-01
Publication Type
Journal Article
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Abstract
The impact of joint stiffness on vibration transmissibility across concrete pavement joints was analyzed by theoretical analysis， and a vibration-based identification method for joint damage was proposed. Furthermore， laboratory tests were conducted using MTS to verify the influence of local stiffness-loss on vibration transmissibility， with 400，000 loading cycles being applied. In addition， six concrete pavement slabs were constructed to conduct a comparative analysis with the deflection-based method， to further validate the proposed vibration-based method in actual engineering environments. The results indicate that there is a significant correlation between frequency transmissibility and joint stiffness， with a correlation coefficient of over 0.8. The repeated tests conducted on different joints and in different seasons suggest that the stiffness-loss ratio of joints can be identified with an accuracy of ± 0.069， thereby confirming the accuracy and reliability of the proposed damage identification method.
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published
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Volume
53 (6)
Pages / Article No.
1736 - 1745
Publisher
Daxue
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Subject
road and railway engineering; joint; damage identification; vibration transmissibility; concrete pavement