桥梁内部钢结构病害检测研究与应用

doi:10.3969/j.issn.1674-0696.2021.10.04

摘要/Abstract

摘要： 桥梁内部钢结构病害隐蔽性强、不易察觉，极易造成难以预见的结构破坏，因此如何实现内部病害的及时检测和精准诊断，成为亟待解决的重大难题。基于自发漏磁检测原理，揭示了磁场变异与钢结构损伤的相关性，然后利用此共性特征，开展桥梁内部钢结构病害无损检测研究；重点针对钢筋锈蚀、拉索腐蚀断丝和钢筋应力破坏3种桥梁内部病害，总结了笔者团队在检测方法、装置研发与应用方面取得的研究成果，对比分析了常用检测方法的技术特征，为推动桥梁无损检测技术的快速发展奠定了研究基础。

关键词: 桥梁工程；内部病害；自发漏磁；无损检测

Abstract: The internal steel structure diseases of bridges are highly hidden and difficult to detect, which will easily cause unpredictable structural damages. Therefore, how to realize the timely detection and accurate diagnosis of these diseases has become a major research problem to be solved. Based on the principle of self-magnetic flux leakage, the correlation between the magnetic field variation and the steel structure damage was revealed. Then the research on the non-destructive detection of bridge internal steel structure diseases was carried out by using this common feature. Focusing on three kinds of bridge internal diseases such as reinforcement corrosion, cable corrosion and broken wire and reinforcement stress failure, the research results obtained by the authors team in in detection methods, equipment development and application were summarized. Moreover, the technical characteristics of common detection methods were compared and analyzed, laying a research foundation for promoting the rapid development of bridge non-destructive testing technology.

Key words: bridge engineering; internal disease; self-magnetic flux leakage; non-destructive testing

中图分类号:

U446

周建庭1,2，夏润川1,2，张洪1,2. 桥梁内部钢结构病害检测研究与应用[J]. 重庆交通大学学报（自然科学版）, 2021, 40(10): 20-28.

ZHOU Jianting1,2，XIA Runchuan1,2，ZHANG Hong 1,2. Research and Application of Bridge Internal Steel Structure Disease Detection[J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(10): 20-28.

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