Research Article
Impedance-Based Cable Force Monitoring in Tendon-Anchorage Using Portable PZT-Interface Technique
Table 1
Cable force-loss monitoring by frequency shift.
| | Case | Cable force | Resonant frequency | | (kN) | (%) | (kHz) | (%) | (kHz) | (%) |
| | 49.05 | 0 | 19.63 | 0 | 82.23 | 0 | | 39.2 | −20.1 | 19.63 | 0 | 82.15 | −0.1 | | 29.4 | −40.1 | 19.57 | −0.3 | 82.03 | −0.2 | | 19.6 | −60 | 19.53 | −0.5 | — | — |
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