| 冲击回波法在钢管混凝土拱桥检测中的研究 |
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| 引用本文： | 张东方,王运生. 冲击回波法在钢管混凝土拱桥检测中的研究[J]. 工程地球物理学报, 2009, 6(3): 364-367. DOI: 10.3969/j.issn.1672-7940.2009.03.021 |
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| 作者姓名： | 张东方 王运生 |
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| 作者单位： | 郑州大学,道路检测中心,郑州,450002 |
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| 基金项目： | 河南省重大公益科技项目 |
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| 摘 要： | 冲击回波法是一种新型钢管混凝土结构无损检测技术，即用锤子对钢管混凝土结构表面轻微敲击，根据反射应力波波形与频率来探测构件内部缺陷。本文首先对冲击回波法的原理进行了研究，其次通过模型试验分析，总结规律。最后在某钢管混凝土拱桥工程中进行冲击回波法应用效果分析验证。结果表明，冲击回波法可以方便、直观的检测出钢管混凝土拱桥的质量。
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| 关 键 词： | 钢管混凝土 无损检测 冲击回波法 |
Study of Impact-Echo Method Detection in Arch Bridge of Concrete-Filled Steel Tube |
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| Zhang Dongfang,Wang Yunsheng. Study of Impact-Echo Method Detection in Arch Bridge of Concrete-Filled Steel Tube[J]. Chinese Journal of Engineering Geophysics, 2009, 6(3): 364-367. DOI: 10.3969/j.issn.1672-7940.2009.03.021 |
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| Authors: | Zhang Dongfang Wang Yunsheng |
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| Affiliation: | (Zhengzhou University, Zhengzhou 450002, China) |
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| Abstract: | Impact - echo method is an innovative nondestructive testing of concrete - filled steel tube structure. Hitting gently on the surface of concrete - filled steel tube structure with a hammer, internal defects of the structure can be detected by the waveform and frequency of the reverberate stress waves. Firstly, the principle of the impact -echo method is studied in this paper. Secondly, through the model test analysis, the rule is summarized. At last, in the concrete- filled steel tube arch bridge project the effect of its application is to be analyzed and validated . The results show that the quality of concrete - filled steel tubes can be tested conveniently and directly by the impact - echo method. |
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| Keywords: | concrete - filled steel tube nondestructive testing impact - echo method |
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