A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Structural health monitoring of an all-composite bridge using bragg grating sensors
This paper reports on the replacement of an ageing metal bridge (West Mill Bridge, B4508, Oxfordshire, UK) with an all-composite bridge. This bridge represents the first vehicle-carrying bridge made exclusively from composite in the UK. A unique feature of this bridge was that the different composite sections were bonded on-site and the whole assembly was then lifted into position. The opportunity was taken to develop a structural health monitoring strategy using fibre Bragg grating-based strain and temperature sensors. Because of the renowned fragility of optical fibres, protection systems were designed and implemented for the sensors during the construction. The systems were successful as all the sensors survived the installation and commissioning of the bridge. The outputs from the various sensors at specified locations were assessed during the load testing of the bridge. The paper also presents an overview of the instrumentation and the durability of one sensor protection system. In order to isolate the optical sensors from the surrounding, 2 protection systems were designed and implemented. These systems were deemed successful as all the Bragg grating sensors survived the construction and lifting of the bridge. The bridge validation test highlighted the good agreement between the strains measured by the optical sensors and those obtained by the electrical gauges. The data transfer, analysis and display were evaluated at RMCS (Royal Military College of Science) by performing various tests and the some results are now available on the Internet (www.senors-composites. com/wmb).
Structural health monitoring of an all-composite bridge using bragg grating sensors
This paper reports on the replacement of an ageing metal bridge (West Mill Bridge, B4508, Oxfordshire, UK) with an all-composite bridge. This bridge represents the first vehicle-carrying bridge made exclusively from composite in the UK. A unique feature of this bridge was that the different composite sections were bonded on-site and the whole assembly was then lifted into position. The opportunity was taken to develop a structural health monitoring strategy using fibre Bragg grating-based strain and temperature sensors. Because of the renowned fragility of optical fibres, protection systems were designed and implemented for the sensors during the construction. The systems were successful as all the sensors survived the installation and commissioning of the bridge. The outputs from the various sensors at specified locations were assessed during the load testing of the bridge. The paper also presents an overview of the instrumentation and the durability of one sensor protection system. In order to isolate the optical sensors from the surrounding, 2 protection systems were designed and implemented. These systems were deemed successful as all the Bragg grating sensors survived the construction and lifting of the bridge. The bridge validation test highlighted the good agreement between the strains measured by the optical sensors and those obtained by the electrical gauges. The data transfer, analysis and display were evaluated at RMCS (Royal Military College of Science) by performing various tests and the some results are now available on the Internet (www.senors-composites. com/wmb).
Structural health monitoring of an all-composite bridge using bragg grating sensors
Strukturzustandsüberwachung einer Vollverbundbrücke mit Hilfe von Bragg-Beugungsgittersensoren
Kister, G. (author) / Winter, D. (author) / Badcock, R.A. (author) / Fernando, G.F. (author) / Gebremichael, Y. (author) / Grattan, K.T.V. (author) / Boyle, W. (author) / Meggitt, B. (author)
2004
4 Seiten, 4 Bilder, 6 Quellen
Conference paper
English
Monitoring of an all-composite bridge using Bragg grating sensors
| British Library Online Contents | 2007
Monitoring of an all-composite bridge using Bragg grating sensors
| Elsevier | 2006
Monitoring of an all-composite bridge using Bragg grating sensors
| Online Contents | 2007
Structural Health Monitoring of Cryogenic Composite Tank using Embedded Fiber Bragg Grating Sensors
| British Library Conference Proceedings | 2006
Fiber-optic Bragg grating sensors for bridge monitoring
| Online Contents | 1997