Prizeman, OEC, Sarhosis, V orcid.org/0000-0002-8604-8659, D’Alri, AM et al. (2 more authors) (2017) MODELLING FROM THE PAST: THE LEANING SOUTWEST TOWER OF CAERPHILLY CASTLE 1539-2015. In: ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences. 26th International CIPA Symposium 2017, 28 Aug - 01 Sep 2017, Ottawa, Canada. Copernicus Publications , pp. 221-227.
Abstract
Caerphilly Castle (1268-70) is the first concentric castle in Britain and the second largest in the UK. The dramatic inclination of its ruinous south west tower has been noted since 1539. Comparing data from historical surveys and a terrestrial laser scan undertaken in 2015, this paper seeks to review evidence for the long-term stability of the tower. Digital documentation and archival research by architects is collated to provide data for structural analysis by engineers. A terrestrial laser scan was used to create a detailed three dimensional finite element model to enable structural analysis of the current shape of the tower made by tetrahedral elements. An automated strategy has been implemented for the transformation of the complex three dimensional point cloud into a three dimensional finite element model. Numerical analysis has been carried out aiming at understanding the main structural weaknesses of the tower in its present condition. Comparisons of four sets of data: 1539, 1830, 1870 and 2015 enabled us to determine change albeit between very different methods of measurement.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2017. This work is distributed under the Creative Commons Attribution 4.0 License. https://creativecommons.org/licenses/by/4.0/ |
Keywords: | Masonry; Tower; Point Cloud; Numerical Modelling; Terrestrial Laser Scanning |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Apr 2019 10:49 |
Last Modified: | 25 Jun 2023 21:47 |
Status: | Published |
Publisher: | Copernicus Publications |
Identification Number: | 10.5194/isprs-annals-IV-2-W2-221-2017 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:144596 |