Microwave Radar Interferometry as a Cost-Efficient Method of Monitoring the Structural Health of Bridges in New Zealand
| Autor: | Gabriele Granello, Kaveh Andisheh, Alessandro Palermo, Jeremy Waldin |
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| Rok vydání: | 2018 |
| Předmět: |
Damage detection
Cost efficiency Computer science 020101 civil engineering 02 engineering and technology Building and Construction 01 natural sciences 0201 civil engineering law.invention Reliability engineering Microwave radar Interferometry law Hazardous waste 0103 physical sciences Bridge maintenance Radar Transformer 010301 acoustics Civil and Structural Engineering |
| Zdroj: | Structural Engineering International. 28:518-525 |
| ISSN: | 1683-0350 1016-8664 |
| DOI: | 10.1080/10168664.2018.1461538 |
| Popis: | The health monitoring of civil infrastructure is becoming more common for investigating actual structural behaviour, allowing early damage detection and helping to protect critical structures. In the New Zealand infrastructural context in particular, the introduction of high-productivity motor vehicles (HPMVs) along with the damage caused by recent earthquakes has resulted in a growing need for verification that bridges are performing as expected. The application of “classical” instruments such as accelerometers and linear variable differential transformers (LVDTs) are very expensive due to high installation costs and the need for a continuous power supply. However, radar interferometry is a promising alternative which can detect structural displacements without directly accessing the bridge, offering not only time and cost savings but also the capability to investigate structures where access is difficult or hazardous. This paper presents a health assessment of a bridge crossing the Rangitata Riv... |
| Databáze: | OpenAIRE |
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