| 基于声振法的钢管混凝土脱空检测技术试验研究 |
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| 引用本文： | 韩西,杨科,杨劲,杜渝. 基于声振法的钢管混凝土脱空检测技术试验研究[J]. 中南公路工程, 2012, 0(5): 108-110,114 |
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| 作者姓名： | 韩西 杨科 杨劲 杜渝 |
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| 作者单位： | [1]重庆交通大学桥梁及结构工程重点实验室,重庆400074 [2]重庆市科学技术研究院,重庆401123 [3]重庆工商大学,重庆400067 |
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| 基金项目： | 重庆市科学技术委员会科技项目（CSTC-2009AB6135） |
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| 摘 要： | 基于声振原理，研究了瞬态冲击作用下钢管混凝土脱空检测技术。提出了根据声振信号时域与频域图形中能量衰减快慢，振幅、峰值变化等特征对钢管混凝土脱空状况进行判别的方法。通过模型试验分析，证明了该方法的可行性与有效性。展望了今后进一步的研究方向，即可结合其他方法对钢管混凝土脱空程度作出精确定量分析。
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| 关 键 词： | 声振法 钢管混凝土 脱空 频谱 |
Experiment Study on The Detection for Void at Interface of Concrete-filled Steel Tube Based on Acoustic and Vibration |
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| HAN Xi,YANG Ke,YANG Jing,DU Yu. Experiment Study on The Detection for Void at Interface of Concrete-filled Steel Tube Based on Acoustic and Vibration[J]. Central South Highway Engineering, 2012, 0(5): 108-110,114 |
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| Authors: | HAN Xi YANG Ke YANG Jing DU Yu |
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| Affiliation: | 1. Key Laboratory of Bridge and Structural Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 2. Chongqing Academy of Science and Technology, Chongqing 401123, China; 3. Chongqing Technology and Business University, Chongqing 400067, China) |
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| Abstract: | Based on principles of acoustic- vibration, study the detection for void at interface of concrete-filled steel tube under transient impulse. And a practical method to judge the disengaging condi- tion is proposed, it works according to the attenuation speed of energy, the amplitude and the changes of peaks in time domain and frequency domain graph of sound and vibration signals. Then through the model test analysis, the feasibility and effectiveness of the method is demonstrated. Finally, some topics which are worth studying further are proposed, that can be combined with other methods to analyse the disenga- ging value accurately and quantitatively. |
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| Keywords: | acoustic-vibration concrete-filled steel tube void spectrum |
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