Table 2.
Results of the maximum recorded bridge deflections (in mm).
| Measuring Technique | Load Scenarios | Bridge Deflection at the Span of: | ||
|---|---|---|---|---|
| 1/4 | 1/2 | 3/4 | ||
| Tachymetry (reference method) | A | 24.0 | 49.1 | 37.7 |
| B | 0.3 | 2.1 | 1.7 | |
| C | 19.7 | 35.4 | 24.1 | |
| Photogrammetry | A | 18 | 60 | 46 |
| B | 0 | 3 | 2 | |
| C | 15 | 43 | 30 | |
| TLS (FARO Focus) | A | a | a | a |
| TLS (Trimble TX8) | A | 19 | 49 | 38 |
| B | b | b | b | |
| C | b | b | b | |
a Former TLS results [32] were considered uncertain (the quality of point cloud was weak); b bridge deflections under dynamic loading are not possible to extract at this stage (the next research are still required); A, B, and C mean the load scenarios according to static loading (with limestone), dynamic loading (without the limestone), and dynamic loading (with limestone), respectively.