Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study of masonry arch bridge limit states with acoustic emission techniques
Masonry arch bridges form over 40 % of the European bridge stock, 60 % of which are over 100 years old. With regards to the significantly increasing levels of loading and volumes of traffic, establishing the safe limits of loading are becoming more and more urgent. Determining the life expectancy of masonry arch bridges is necessary for managing the aging bridge stock. Acoustic emission is increasingly widely used for monitoring concrete and metallic bridges, its application for masonry bridges is however currently very limited. During an extended series of large-scale laboratory masonry arch tests the use of acoustic emission technique has been investigating at the University of Salford, UK. The ultimate and serviceability limit states for masonry arch bridges was investigated with the use of acoustic emission techniques. Crack propagation load was identified as the serviceability limit state and was found to be as low as 30 % of the ultimate limit state. Acoustic emission is capable of identifying residual damage occurring to the arch under long-term fatigue loading and can warn of imminent damage. The technique can also be used for arches in poor condition and shows great potential for condition assessment and monitoring of masonry arch bridges in the traffic network.
Study of masonry arch bridge limit states with acoustic emission techniques
Masonry arch bridges form over 40 % of the European bridge stock, 60 % of which are over 100 years old. With regards to the significantly increasing levels of loading and volumes of traffic, establishing the safe limits of loading are becoming more and more urgent. Determining the life expectancy of masonry arch bridges is necessary for managing the aging bridge stock. Acoustic emission is increasingly widely used for monitoring concrete and metallic bridges, its application for masonry bridges is however currently very limited. During an extended series of large-scale laboratory masonry arch tests the use of acoustic emission technique has been investigating at the University of Salford, UK. The ultimate and serviceability limit states for masonry arch bridges was investigated with the use of acoustic emission techniques. Crack propagation load was identified as the serviceability limit state and was found to be as low as 30 % of the ultimate limit state. Acoustic emission is capable of identifying residual damage occurring to the arch under long-term fatigue loading and can warn of imminent damage. The technique can also be used for arches in poor condition and shows great potential for condition assessment and monitoring of masonry arch bridges in the traffic network.
Study of masonry arch bridge limit states with acoustic emission techniques
Untersuchung der Grenzbelastung gemauerter Bogenbrücken mit Schallemissionsverfahren
Tomor, A.K. (Autor:in) / Melbourne, C. (Autor:in)
2006
7 Seiten, 6 Bilder, 2 Tabellen, 8 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
Monitoring masonry arch bridge response to traffic loading using acoustic emission techniques
| British Library Conference Proceedings | 2007
Engineering Index Backfile | 1895
Condition Monitoring of Masonry Arch Bridges using Acoustic Emission Techniques
| Online Contents | 2007
Condition Monitoring of Masonry Arch Bridges using Acoustic Emission Techniques
| British Library Online Contents | 2007
Masonry arch bridge assessment
British Library Online Contents | 2008