Experimental study on infrared detection of debonding in concrete-filled steel tubular structure under acceleratory period of hydration heat action
| Author(s) | Cheng, Chongsheng | |
| Author(s) | Cheng, Xun | |
| Author(s) | Zhang, Hong | |
| Author(s) | Cai, Haonan | |
| Author(s) | Zhou, Jianting | |
| Author(s) | Na, Ri | |
| Author(s) | Wu, Bo | |
| Date Accessioned | 2025-01-16T20:30:34Z | |
| Date Available | 2025-01-16T20:30:34Z | |
| Publication Date | 2024-11-01 | |
| Description | This article was originally published in Case Studies in Construction Materials. The version of record is available at: https://doi.org/10.1016/j.cscm.2024.e03928. © 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). | |
| Abstract | Concrete-filled steel tubular (CFST) Structures often face challenges with debonding during construction, which can markedly compromise the structural integrity. The hydration of concrete can generate significant heat during construction, making the infrared thermography as a potential method for the defect detection. However, effects of concrete hydration behavior, debonding size, and environmental factors on the infrared thermal imaging of CFST debonding remains unclear. This study conducted experiments using four different hydration heating rates and three debonding sizes to simulate debonding detection using infrared imaging during the hydration phase of CFST. The feasibility of the simulation approach was validated through pair-to-pair comparison, and multiple linear regression analysis was employed to evaluate the impact of these factors. The findings highlight that absolute temperature difference has the most significant impact on detection effectiveness regardless of interaction effects. In regression models without interaction, heating rate demonstrated the least impact, Whereas the model considering the interaction showed that the interaction effect of heating rate and debonding size showed a secondary effect. Further examination indicated that interaction effects decrease as heating rate and debonding size decrease. | |
| Sponsor | This work was partially supported by the National Natural Science Foundation of China (No.52108267, 52478301), the Chongqing Natural Science Foundation of China (CSTB2022NSCQ-MSX1379 and CSTB2022TIAD-KPX0205), the Special Support Program of Chongqing Postdoctoral Research (2021XMT007), and the China Postdoctoral Science Foundation under Grant Number 2024T171100. | |
| Citation | Cheng, Chongsheng, Xun Cheng, Hong Zhang, Haonan Cai, Jianting Zhou, Ri Na, and Bo Wu. “Experimental Study on Infrared Detection of Debonding in Concrete-Filled Steel Tubular Structure under Acceleratory Period of Hydration Heat Action.” Case Studies in Construction Materials 21 (December 2024): e03928. https://doi.org/10.1016/j.cscm.2024.e03928. | |
| ISSN | 2214-5095 | |
| URL | https://udspace.udel.edu/handle/19716/35726 | |
| Language | en_US | |
| Publisher | Case Studies in Construction Materials | |
| dc.rights | Attribution-NonCommercial 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | |
| Keywords | concrete-filled steel tube | |
| Keywords | infrared thermography | |
| Keywords | debonding detection | |
| Keywords | hydration heat effect | |
| Title | Experimental study on infrared detection of debonding in concrete-filled steel tubular structure under acceleratory period of hydration heat action | |
| Type | Article |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- Experimental study on infrared detection of debonding in concrete-filled steel tubular structure under acceleratory period of hydration heat action.pdf
- Size:
- 11.76 MB
- Format:
- Adobe Portable Document Format
- Description:
- Main article
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 2.22 KB
- Format:
- Item-specific license agreed upon to submission
- Description: