Deformation Monitoring in Historic Buildings: A Case Study

Deformation monitoring in heritage buildings is an essential task for conservation and restoration studies. A vast variety of techniques can be applied assuming that a three-dimensional modelization is required: GPS (Global Positioning System) measurement, photogrammetry, laser scanning, SAR (Synthetic Aperture Radar) interferometry, terrestrial surveying. They are reviewed for their possible application to a specific heritage building where deformation monitoring has to be performed under severe conditions regarding the lack of intervisibility and the requirement of extremely high accuracy. Finally high precision terrestrial surveying techniques, some of which may be considered as obsolete today, emerged as the most appropriate solution under the conditions. Results show significant displacements for particular points that agree with some suspected structural weaknesses. © 2011 Survey Review Ltd.The authors would like to thank Forum Unesco University and Heritage for the provided financial support in the case of study. The authors are also grateful to the anonymous reviewers for their valuable suggestions, corrections and constructive comments.Baselga Moreno, S.; Garrigues Talens, P.; Berné Valero, JL.; Anquela Julián, AB.; Martín Furones, ÁE. (2011). Deformation Monitoring in Historic Buildings: A Case Study. Survey Review. 43(323):484-492. doi:10.1179/003962611X1311774889191248449243323Capra, A., Gandolfi, S., Laurencich, L., Mancini, F., Minelli, A., Orsini, C., & Rodríguez, A. (2002). Multidisciplinary approach for archeological survey: exploring GPS method in landscape archeology studies. Journal of Cultural Heritage, 3(2), 93-99. doi:10.1016/s1296-2074(02)01174-3Even-Tzur, G., & Agmon, E. (2005). MONITORING VERTICAL MOVEMENTS IN MOUNT CARMEL BY MEANS OF GPS AND PRECISE LEVELLING. Survey Review, 38(296), 146-157. doi:10.1179/sre.2005.38.296.146Robinson, G. L., Greening, W. J. T., DeKrom, P. W., Chrzanowski, A., Silver, E. C., Allen, G. C., & Falk, M. (1995). Surface and Underground Geodetic Control for Superconducting Super Collider. Journal of Surveying Engineering, 121(1), 13-34. doi:10.1061/(asce)0733-9453(1995)121:1(13)Tarchi, D., Rudolf, H., Pieraccini, M., & Atzeni, C. (2000). Remote monitoring of buildings using a ground-based SAR: Application to cultural heritage survey. International Journal of Remote Sensing, 21(18), 3545-3551. doi:10.1080/01431160075003756