Research Article
Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method
Table 3
Comparison of experimental and analytical results.
| | Conditions | Defect ratio (%) | FE analysis frequency value (kHz) | Experimental frequency value (kHz) | Error (%) |
| | Hole A and B | 0 | 9.497 | 9.644 | 1.52 | | Hole D | 10 | 9.497 | 9.644 | 1.52 | | Hole E | 20 | 9.330 | 9.277 | 0.57 | | Hole F | 30 | 9.330 | 9.277 | 0.57 | | Hole G | 10 | 9.497 | 9.644 | 1.52 | | Hole H | 20 | 9.330 | 9.277 | 0.57 | | Hole I | 30 | 9.163 | 8.911 | 2.83 | | Hole C | 100 | 8.997 | 8.911 | 0.97 |
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