Wave speed bridge damage detection method
US6257064A · kind A · utility
12Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An impact test method excites a bridge by an impact hammer at an impact point to create impact waves traveling through the bridge toward distal and proximal ends of the bridge where transient responses are measured in time reference to impact excitation. Time delays from an impact trigger time referenced to the reception of the transient responses over respective distances traveled by the impact wave provide wave speed indices that can be used to indicate structural change or damage of the bridge when compared to pre-damaged wave speed indices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.