Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method
Grouted lap-splice connections are widely used for connecting precast concrete components. Grouting defects in the connections significantly influence the structural performance of the whole connection, which leads to the need for grouting defect detection. In this study, the impact-echo (IE) method...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/1934240 |
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| _version_ | 1832550737636229120 |
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| author | Yun-Lin Liu Jing-Jing Shi Jun-Qi Huang Guang-Shuo Wei Zhi-Xin Wu |
| author_facet | Yun-Lin Liu Jing-Jing Shi Jun-Qi Huang Guang-Shuo Wei Zhi-Xin Wu |
| author_sort | Yun-Lin Liu |
| collection | DOAJ |
| description | Grouted lap-splice connections are widely used for connecting precast concrete components. Grouting defects in the connections significantly influence the structural performance of the whole connection, which leads to the need for grouting defect detection. In this study, the impact-echo (IE) method was used for detecting defects in grouted lap-splice connections. Grouted connections with different levels of artificial grout defects were prepared in a shear wall, and the IE method was used to measure the frequency response. In addition, finite element (FE) analysis based on ABAQUS was conducted to simulate the tests. Based on the validated FE model, a parametric study was conducted to investigate the effect of the depth of the grout hole on the amplitude spectrum. The results indicated that (1) the IE method offered a good potential for grouting defect detection in grouted lap-splice connections; (2) the proposed FE model could well predict the frequency response of the grouting hole; and (3) the measured frequency and amplitude of the grouting hole in an impact-echo test would be considerably influenced by the hole depth. |
| format | Article |
| id | doaj-art-f7c459666bd8485e9fb08c4ab396e7e0 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f7c459666bd8485e9fb08c4ab396e7e02025-02-03T06:06:07ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/19342401934240Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo MethodYun-Lin Liu0Jing-Jing Shi1Jun-Qi Huang2Guang-Shuo Wei3Zhi-Xin Wu4School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaSchool of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaSchool of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaAnhui Institute of Building Research and Design, Hefei 230088, ChinaAnhui Institute of Building Research and Design, Hefei 230088, ChinaGrouted lap-splice connections are widely used for connecting precast concrete components. Grouting defects in the connections significantly influence the structural performance of the whole connection, which leads to the need for grouting defect detection. In this study, the impact-echo (IE) method was used for detecting defects in grouted lap-splice connections. Grouted connections with different levels of artificial grout defects were prepared in a shear wall, and the IE method was used to measure the frequency response. In addition, finite element (FE) analysis based on ABAQUS was conducted to simulate the tests. Based on the validated FE model, a parametric study was conducted to investigate the effect of the depth of the grout hole on the amplitude spectrum. The results indicated that (1) the IE method offered a good potential for grouting defect detection in grouted lap-splice connections; (2) the proposed FE model could well predict the frequency response of the grouting hole; and (3) the measured frequency and amplitude of the grouting hole in an impact-echo test would be considerably influenced by the hole depth.http://dx.doi.org/10.1155/2019/1934240 |
| spellingShingle | Yun-Lin Liu Jing-Jing Shi Jun-Qi Huang Guang-Shuo Wei Zhi-Xin Wu Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method Shock and Vibration |
| title | Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method |
| title_full | Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method |
| title_fullStr | Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method |
| title_full_unstemmed | Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method |
| title_short | Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method |
| title_sort | grouting defect detection of lapped bar connections based on impact echo method |
| url | http://dx.doi.org/10.1155/2019/1934240 |
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