基于红外热成像的钢管混凝土脱空缺陷检测研究
钢管混凝土(concrete-filled steel tubular,CFST)构件在施工过程中,会因施工人员操作不当、混凝土发生收缩等原因使其内部产生不密实缺陷,其中脱空缺陷会削弱钢管与混凝土之间的相互作用,导致构件承载力下降。因此有必要加强对CFST构件脱空缺陷的检测。本文提出了一种基于红外热成像法对CFST进行脱空缺陷检测的方法,相关理论研究表明:当结构存在缺陷或损伤时,该结构的热物理特性会发生变化,体现为物体表面局部温度发生异常。进行红外热成像法检测CFST脱空缺陷试验研究,结果表明红外热成像技术能够有效检测CFST脱空缺陷,该缺陷判断指标分别为:试件加热后的温度差为3℃及监测范围内...
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Main Authors: | 何健, 张佶, 王航, 钱娟, 邵志伟, 戴爽, 查晓雄 |
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Format: | Article |
Language: | Chinese |
Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2025-07-01
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Series: | Jianzhu Gangjiegou Jinzhan |
Subjects: | |
Online Access: | http://steelpro.tongji.edu.cn/thesisDetails#10.13969/j.jzgjgjz.20240224001 |
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