Vibration-based monitoring of a cross-laminated timber building in a high seismicity zone

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dc.contributor.authorJara-Cisterna, Alan
dc.contributor.authorBenedetti, Franco
dc.contributor.authorRosales, Victor
dc.contributor.authorAlmazan, Jose Luis
dc.contributor.authorOpazo-Vega, Alexander
dc.date.accessioned2025-01-20T16:07:19Z
dc.date.available2025-01-20T16:07:19Z
dc.date.issued2024
dc.description.abstractCross-laminated timber (CLT) buildings have emerged as an alternative to make more sustainable and resilient cities. However, very few cases of vibration-based monitoring of these buildings have been reported. This paper discusses the variation of the dynamic properties of a 5-story cross-laminated timber (CLT) building through vibration-based monitoring over 23 months. The building combines different construction systems, is relatively slender for its type, and was built in a high seismicity zone. The monitoring strategy included periodic measurements of the dynamic properties during construction, reference measurements with high-sensitivity accelerometers, and 10 months of continuous measurements with low-cost equipment. In addition, continuous measurements allowed the analysis of the dynamic properties during special events associated with wind gusts and moderate-intensity earthquakes. During the construction stage monitoring and reference measurements, up to 5 modal shapes of the building with their respective vibration frequencies and damping ratios were detected. These dynamic properties allowed the calibration of a simplified numerical model of the building. Subsequently, during the continuous monitoring phase of the building, it was observed that the first two translation frequencies varied by up to 8% due to changes in climatic conditions and the moisture content of the timber. Finally, monitoring during a 5.4 Mw earthquake showed that vibration frequencies temporarily decreased by up to 15% and returned to their initial value after the seismic event had passed. The results of this research will contribute to the knowledge of the dynamic response of this type of building and the updating of their structural design codes.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s13349-024-00862-1
dc.identifier.eissn2190-5479
dc.identifier.issn2190-5452
dc.identifier.urihttps://doi.org/10.1007/s13349-024-00862-1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89994
dc.identifier.wosidWOS:001326019300001
dc.language.isoen
dc.revistaJournal of civil structural health monitoring
dc.rightsacceso restringido
dc.subjectOperational modal analysis
dc.subjectMass timber buildings
dc.subjectModal properties
dc.subjectStructural health monitoring
dc.subjectAmbient vibrations
dc.titleVibration-based monitoring of a cross-laminated timber building in a high seismicity zone
dc.typeartículo
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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