Reuse process for timber elements to optimise residual performances in subsequent life cycles

The reuse of wooden elements is a sustainable operation, which makes the best use of the material’s grey energy. Currently, structural timber from selective demolition is mainly used for non-structural functions, with a lowering of its performance, due to the lack of standard and specific regulation...

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Main Author: Stefania De Gregorio
Format: Article
Language:English
Published: Universitat Politècnica de València 2022-12-01
Series:Vitruvio: International Journal of Architectural Technology and Sustainability
Subjects:
Online Access:http://polipapers.upv.es/index.php/vitruvio/article/view/18809
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author Stefania De Gregorio
author_facet Stefania De Gregorio
author_sort Stefania De Gregorio
collection DOAJ
description The reuse of wooden elements is a sustainable operation, which makes the best use of the material’s grey energy. Currently, structural timber from selective demolition is mainly used for non-structural functions, with a lowering of its performance, due to the lack of standard and specific regulation. In fact, the visual grading used to define the structural characteristics of wood does not evaluate information deriving from the previous life cycles of the component. In the paper, taking samples of rectangular timber elements from selective demolitions made in the Valencian Community, the structural values that are assigned by visual strength grading legislation were compared with the real resistance values identified by experimental analysis to verify their compliance. The verification showed that the visual grading is not able to optimize the performance of the timber element in its reuse. Therefore, the purpose of the research, illustrated in the paper, is to find a reuse process for structural wooden elements to enhance residual performances. The identified process introduces additional steps compared in the current visual grading, that include a consideration of the effective modalities of reuse evaluated according to the worst defects and information arising from previous life cycles.
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publisher Universitat Politècnica de València
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series Vitruvio: International Journal of Architectural Technology and Sustainability
spelling doaj-art-432aeebe9bf849da9467ff5497f993782025-08-20T02:18:10ZengUniversitat Politècnica de ValènciaVitruvio: International Journal of Architectural Technology and Sustainability2444-90912022-12-0172889910.4995/vitruvioijats.2022.1880917999Reuse process for timber elements to optimise residual performances in subsequent life cyclesStefania De Gregorio0University of L'Aquila The reuse of wooden elements is a sustainable operation, which makes the best use of the material’s grey energy. Currently, structural timber from selective demolition is mainly used for non-structural functions, with a lowering of its performance, due to the lack of standard and specific regulation. In fact, the visual grading used to define the structural characteristics of wood does not evaluate information deriving from the previous life cycles of the component. In the paper, taking samples of rectangular timber elements from selective demolitions made in the Valencian Community, the structural values that are assigned by visual strength grading legislation were compared with the real resistance values identified by experimental analysis to verify their compliance. The verification showed that the visual grading is not able to optimize the performance of the timber element in its reuse. Therefore, the purpose of the research, illustrated in the paper, is to find a reuse process for structural wooden elements to enhance residual performances. The identified process introduces additional steps compared in the current visual grading, that include a consideration of the effective modalities of reuse evaluated according to the worst defects and information arising from previous life cycles.http://polipapers.upv.es/index.php/vitruvio/article/view/18809timber life cyclestructural reusehistorical beamsvisual gradingexperimental analysissustainability
spellingShingle Stefania De Gregorio
Reuse process for timber elements to optimise residual performances in subsequent life cycles
Vitruvio: International Journal of Architectural Technology and Sustainability
timber life cycle
structural reuse
historical beams
visual grading
experimental analysis
sustainability
title Reuse process for timber elements to optimise residual performances in subsequent life cycles
title_full Reuse process for timber elements to optimise residual performances in subsequent life cycles
title_fullStr Reuse process for timber elements to optimise residual performances in subsequent life cycles
title_full_unstemmed Reuse process for timber elements to optimise residual performances in subsequent life cycles
title_short Reuse process for timber elements to optimise residual performances in subsequent life cycles
title_sort reuse process for timber elements to optimise residual performances in subsequent life cycles
topic timber life cycle
structural reuse
historical beams
visual grading
experimental analysis
sustainability
url http://polipapers.upv.es/index.php/vitruvio/article/view/18809
work_keys_str_mv AT stefaniadegregorio reuseprocessfortimberelementstooptimiseresidualperformancesinsubsequentlifecycles