Non-Destructive Multi-Feature Analysis of a Historic Wooden Floor
Metadatos
Afficher la notice complèteEditorial
MDPI
Materia
Wood Non-destructive testing Acoustic emission Elastic waves Numerical simulation
Date
2022-12-12Referencia bibliográfica
Cruz, C... [et al.]. Non-Destructive Multi-Feature Analysis of a Historic Wooden Floor. Buildings 2022, 12, 2193. [https://doi.org/10.3390/buildings12122193]
Patrocinador
General Secretariat of Housing of the Office of Development, Infrastructure and Territory Planning of the Junta de Andalucia regional government (ACUSMADERA Project); Program of Precompetitive Research Projects of Young Researchers of the University of Granada UGR.20-06 PPJIA2021.31Résumé
Wood is very present in the structures of old buildings and real estate with historical value.
Yet, as a biodegradable material, it is highly vulnerable to adverse environmental conditions, such
as permanent high humidity and attacks by xylophages. Furthermore, being a natural material,
wood has great potential for low-carbon building within a circular economy. To preserve historical
wooden structures, periodic inspections, preferably non-destructive or minimally invasive, are
needed. Inspection may involve visual or resistographic testing techniques. However, both of
these methods are time consuming and inaccurate. In this work, the joint use of techniques is
proposed, in order to make multi-feature decisions about the repair or replacement of elements. The
acoustic emission technique is proposed to determine active xylophages, the elastic wave technique
to determine the dynamic elastic modulus and the resistance class, and finite element numerical
modelling to determine the state of deformation and structural capacity. An old beam floor from a
historic building in the center of Granada, Spain, was used as a practical case. The results demonstrate
the effectiveness of a multi-analysis, instead of a single analysis, in arriving at correct decision making.