INFORMAZIONI SU QUESTO ARTICOLO
Categoria dell'articolo: Research Article
Pubblicato online: 06 giu 2020
Pagine: 291 - 296
Ricevuto: 07 gen 2020
Accettato: 19 mar 2020
DOI: https://doi.org/10.2478/sgem-2019-0045
Parole chiave
© 2020 Jan Bień et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1
Figure 2
Figure 3
Measuring techniques and sensors used in dynamic tests of bridges_
| Linear displacement | Mechanical sensors |
| Inductive sensors | |
| Vibrating wire sensors | |
| Capacitive sensors | |
| Digital Image Correlation | |
| Fiber optics sensors | |
| Laser techniques | |
| Radar techniques | |
| Angular displacement | Inclinometers |
| Fiber optics sensors | |
| MEMS sensors | |
| Strain/stress | Resistance gauges |
| Fiber optics sensors | |
| Vibrating wire sensors | |
| MEMS sensors | |
| Vibration velocity and acceleration | Piezoelectric sensors |
| Capacitive sensors | |
| Inertia sensors | |
| Inductive sensors | |
| Radar techniques | |
| Laser techniques | |
| MEMS sensors | |
| Crack opening | Mechanical sensors |
| Inductive sensors | |
| Fiber optics sensors | |
| Vibrating wire sensors | |
| Bearing/cables reactions | Resistance gauges |
| Piezoelectric sensors | |
| Vibrating wire sensors |
Requirements for dynamic tests of bridges in Poland_
| 1. Obligatory proof load tests | structures on investor’s or owner’s recommendation | with spans longer than 21 m, prototypes, structures with damages, other structures on investor’s recommendation | with spans longer than 15 m and other structures on investor’s or owner’s recommendation | with spans longer than 21 m, prototypes, structures with damages, other structures on investor’s recommendation |
| 2. Dynamic loads | trucks or exciters | trucks or exciters | locomotives or exciters | locomotives or exciters |
| 3. Artificial bumps | not specified | not acceptable | ||
| 4. Dynamic tests condition | positive results of static tests | |||
| 5. Loading vehicles speed | from 10 km/h with step 20 km/h up to allowable speed | |||
| 6. Measured values | strain, displacement, acceleration, velocity of vibration | |||
| 7. Assessment criteria | individually defined by certified research center | |||