2026-04-19T18:44:48Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/100252025-01-24T01:05:34Zcom_10259_4809com_10259_5086com_10259_2604col_10259_4810

Monitoring Horizontal Movement of Top of a Spire in Saint Mary Cathedral of Burgos via Computer Vision Vicente Cabrera, Miguel Ángel Mena Alonso, Álvaro Mínguez Algarra, Jesús González Cabrera, Dorys Carmen Computer vision Historical heritage Horizontal movement Structural health monitoring Ingeniería civil Construcción Civil engineering Building Long-term monitoring of horizontal movement of the top of vertical elements, such as towers of historical monuments or chimneys, remains a challenge with current solutions. In such structures, which are usually of high historical and cultural value, ageing and structural degradation directly impact their horizontal movement. This study presents a novel solution based on computer vision that allows the monitoring of horizontal movements with very good accuracy (uncertainty less than ±0.26 mm), high measurement speed (up to 5 Hz), and reduced cost. A real-life validation was carried out on the south spire of the Saint Mary Cathedral in Burgos, Spain. Its horizontal movements were monitored for more than a year, and some relevant events were recorded, including high-range thermal variations, strong wind events, and ringing of the bells. The results showed that the proposed solution was particularly robust for long-term monitoring of slow movements, such as those produced by thermal events or those derived from structural degradation. The white noise of the sensor was small and, for long-term measurements and small reading frequencies, it could obtain field accuracies of the order of ±0.1 mm at a recording frequency of 1/10 Hz, which further improved at lower recording frequencies. A Spanish patent (patent no: ES 2 684 134 B2) was granted(Vicente et al., 2019);Universidad de Burgos [VII Edition ofthe ”Convocatoria Prueba Concepto”] 2025-01-23T13:40:43Z 2025-01-23T13:40:43Z 2022-02 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 1558-3058 http://hdl.handle.net/10259/10025 10.1080/15583058.2022.2038721 1558-3066 eng International Journal of Architectural Heritage. 2022, V. 17, n. 9, p. 1405-1427 https://doi.org/10.1080/15583058.2022.2038721 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess application/pdf Taylor and Francis https://riubu.ubu.es/bitstream/10259/10025/4/Vicente-ijoah_2023.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by-nc-nd/4.0/ RIUBU. Repositorio Institucional de la Universidad de Burgos http://hdl.handle.net/10259/10025