Research Article
Damage Detection in Bridge Structures through Compressed Sensing of Crowdsourced Smartphone Data
Table 3
Damage scenarios considered in the laboratory experiments and their corresponding fundamental natural frequencies of the bridge.
| Damage case | Location | Stiffness reduction | Cut dimensions | Bridge fundamental frequency (Hz) |
| DC1a | Mid-span | 15% | 24.8 mm × 250 mm | 3.62 | DC1b | Mid-span | 30% | 49.5 mm × 250 mm | 3.52 | DC2a | span | 15% | 24.8 mm × 250 mm | 3.66 | DC2b | span | 30% | 49.5 mm × 250 mm | 3.61 | DC3 | Boundary condition change | — | — | 8.40 |
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