MATEC Web Conf.
Volume 277, 20192018 International Joint Conference on Metallurgical and Materials Engineering (JCMME 2018)
|Number of page(s)||6|
|Section||Material and Mechanics|
|Published online||02 April 2019|
Study on joint detection of fabricated concrete shear wall based on percussion method
School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China
2 Earthquake Research on Earthquake Traffic Engineering in Strong Earthquake Area Beijing International Science and Technology Cooperation Base, Beijing 100083, China
3 Beijing institute of housing and urban-rural construction science and technology, Beijing 100021, China
* Corresponding author: firstname.lastname@example.org
The knock detection method is one of the non-destructive testing methods for assembly prefabricated components. The knocker is used to knock on the concrete prefabricated components to be tested. The internal conditions of the tested components can be judged by analyzing the time-domain and frequency-domain diagrams of the knocker. In this paper, the impact of the change of the knock point on the detection is studied by using the knock detection experiment. It is found that the location of the knock point has a great influence on the detection. With the change of the position of the knock point, the peak frequency in the spectrum obtained by the detection changes correspondingly. According to the frequency information corresponding to the peak value in the spectrum, the depth of the void to the knock surface can be calculated.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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