Journal
ENGINEERING STRUCTURES
Volume 114, Issue -, Pages 148-157Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2016.02.017
Keywords
Nondestructive testing; Ultrasound; Reinforced concrete; Column; Earthquake loading; Health monitoring; One-sided access
Categories
Funding
- NSF [CMMI-1041633]
- Federal Highway Administration USDOT Grant [DTRT13-G-UTC44]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1041633] Funding Source: National Science Foundation
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The assessment of the structural integrity of infrastructure after extreme events is an important application of nondestructive technology. Advancements in elastic wave-based methods in recent years have allowed for productive and accurate quantitative analysis which was previously lacking. In this study, ultrasonic array measurements coupled with a modified signature analysis method were implemented for damage detection purposes. Full-scale testing of a reinforced concrete column subjected to simulated earthquake loading was tested using ultrasound nondestructive testing at various stages of loading. A signature analysis technique was adapted to create improved reconstructions and was coupled with a quantitative analysis incorporating Pearson's correlation coefficient. The results demonstrated the ability to detect internal damages and defects prior to appearance on the surface using one-sided access, showing promise for health monitoring applications. (C) 2016 Elsevier Ltd. All rights reserved.
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