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Journal of cultural heritage
Volume 12, n° 3
pages 300-309 (juillet 2011)
Doi : 10.1016/j.culher.2011.01.006
Received : 3 October 2010 ;  accepted : 25 January 2011
Review
Comparative structural analyses of masonry bridges: An application to the Cernadela Bridge
 

P. Morer a, ⁎ , I. de Arteaga a , J. Armesto b , P. Arias b
a Department of Mechanical Engineering, Institute of Civil Engineering, TECNUN (University of Navarra), Manuel de Lardizabal 13, 20018 San Sebastian, Spain 
b University of Vigo. ETSI Minas. Rúa Maxwell, Campus Lagoas-Marcosende 36310 Vigo, Spain 

Corresponding author. Tel.: +34 943 219 877; fax: ++34 943 311 442.
Abstract

This paper presents a study of the structural safety of a medieval bridge located in the northwest of Spain. This study was carried out using different analytical methods: (1) the Mechanism Method proposed by Heyman, (2) the Virtual Works Method, (3) the Method developed by Livesley using Linear Programming, and (4) Mery’s Graphic Method. The last one was used to check the other three methods. To do this we developed software called ANPAF, which contains these four methods. The geometry of the bridge was acquired by data acquisition techniques using a 3D scanner. Given the difficulty of assessing the basis of its actual geometry, a module that allows direct reading from the technical information provided by Terrestrial Laser Scanning (TLS) and orthophotos was developed. This study has allowed us to compare the results from different methods and to see the scope of each with a view towards their utility in collecting data in the field. At the same time, we validated the methods implemented with existing software.


Keywords : Masonry arch, Terrestrial laser scanning, Photogrammetry, Structural analysis, Cultural heritage, Limit analysis


OutlineMasquer le plan
Introduction and research aim
The Cernadela Bridge  (+)
Parametric survey: capture and reading of coordinates  (+)
Structural analysis  (+)
Comparison and discussion of results
Conclusions
Notation


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