Skip to Main content Skip to Navigation
Theses

Classement mécanique des bois de structure. Prise en compte des singularités dans la modélisation du comportement mécanique

Abstract : The methods described in Eurocode 5 must be applied to the calculation of timber structures. The application of these methods requires prescribers to use wood whose mechanical properties are guaranteed. To assign a board to a class, three properties must be guaranteed: the density, the modulus of elasticity (MOE) and bending strength (MOR). The determination of the density and MOE is already mastered; the remaining technological obstacle concerns the prediction of MOR. The possibility to improve the prediction by measuring singularities (knot or slope of grain) or keeping the traceability of forest data has been investigated. Strength grading is governed by standards and the predictions quality of mechanical properties is not sufficient to evaluate the grading efficiency. Therefore the efficiency between different technologies has been compared on species with high harvest potential in France (Douglas fir, spruce and oak). The problems encountered when glulam beams are split have been analyzed. Particularly, the strength loss caused by the splitting process has been detailed and compared to the normative recommendations
Complete list of metadatas

Cited literature [74 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01754622
Contributor : Thèses Ul <>
Submitted on : Friday, March 30, 2018 - 9:55:18 AM
Last modification on : Sunday, April 1, 2018 - 1:18:21 AM

File

DDOC_T_2015_0142_VIGUIER.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01754622, version 1

Citation

Joffrey Viguier. Classement mécanique des bois de structure. Prise en compte des singularités dans la modélisation du comportement mécanique. Autre. Université de Lorraine, 2015. Français. ⟨NNT : 2015LORR0142⟩. ⟨tel-01754622⟩

Share

Metrics

Record views

65

Files downloads

812