Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Wave Impacts on Rock Lighthouses
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
ABSTRACT
This paper reports on a collaboration between Plymouth University and the General Lighthouse Authorities of the United Kingdom and Ireland, featuring the iconic Eddystone Lighthouse. A combined field observation and structural modelling pilot study was undertaken to shed light on how exposed rock lighthouses respond to wave impacts. Constraints to traditional monitoring methods are described and the solutions, along with some preliminary results from nearly 3000 measured events, are discussed. A finite element model of the Eddystone Lighthouse is briefly described and the modal frequencies are compared with the measured values from the field. These highlight a missing second modal response at 8 Hz which is the subject of on-going investigations.
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ACKNOWLEDGEMENTS
The authors would like to acknowledge the support of the General Lighthouse Authorities, particularly Martin Bransby and Ron Blakeley (ex-Trinity House) and their lighthouse engineers who assisted with deployments on station; Peter Ganderton and Tony Tapp of Plymouth University who designed much of the installed equipment; the School of Marine Science and Engineering who funded Davide Banfi’s studentship; Quang Trinh who conducted the FEA; Professors Bernardino Chiaia and Mauro Corrado from Politecnico di Torino who co-supervised Quang Trinh’s MSc dissertation; and Mr Gwyn Jones who organised the Eddystone reef survey, supervising Paul McAuley’s MSc dissertation at Plymouth University.
REFERENCES
Bullock, G., Obhrai, C., Müller, G., Wolters, G., Peregrine, D. H., and Bredmose, H. (2003). “Field and laboratory measurements of wave impacts.” In Proceedings of the 3rd Coastal Structures Conference, ASCE.
Chan, E., Cheong, H., and Tan, B. (1995). “Laboratory study of plunging wave impacts on vertical cylinders.” Coastal Engineering, 25, 87–107.
Douglass, W.T. (1883). “The new Eddystone Lighthouse.” Paper 1960, Proceedings, Institution of Civil Engineers, UK. Vol. 75, Part 1, 1884, 20–60.
Raby, A., Bullock, G.N., Banfi, D., Rafiq, Y., and Cali, F. (2015). “Wave loading on rock lighthouses.” Accepted for publication in Maritime Engineering.
Stagonas, D., Muller, G., Ramachandran, K., Schimmels, S., and Dane, A. (2012). “Distribution of impact induced pressures at the face of uniformly sloped sea dikes: preliminary 2D experimental results.” Proceedings of 33rd International Conference on Coastal Engineering, Santander.
Tanimoto, K., Takahashi, S., Kaneko, T., and Shiota, K. (1986). “Impulsive breaking wave forces on an inclined pile exerted by random waves.” Coastal Engineering, 2288–2302.
Trinh, Q. (2015). “Structural analysis of the Eddystone Lighthouse through the realisation of a Finite Element Model.” MSc Civil Engineering dissertation, Plymouth University and Politecnico di Torino.
Wienke, J., and Oumeraci, H. (2005). “Breaking wave impact force on a vertical and inclined slender pile – theoretical and large-scale model investigations. ” Coastal Engineering, 52(5), 435–462.
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Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Pages: 385 - 391
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8030-4
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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