Wood properties & strength grading
Presentation / Conference
Ridley-Ellis, D. (2022, December)
Wood properties & strength grading. Presented at James Jones & Sons Architects' and Structural Engineers' Open Day, Lockerbie
James Jones & Sons held an open day for architects and structural engineers at its flagship sawmill site in Lockerbie.
"James Jones & Sons' new visitor building at its flags...
Space-Time Finite Element Dynamic Analysis of Transfer Plate Structures in Tall Buildings
Conference Proceeding
Kuang, J., & Zhang, H. (2009)
Space-Time Finite Element Dynamic Analysis of Transfer Plate Structures in Tall Buildings. In B. H. V. Topping, L. F. Costa Neves, & R. C. Barros (Eds.), Proceedings of the 12th international conference on Civil, Structural and Environmental Engineering Computingdoi:10.4203/ccp.91.223
A new space-time finite element formulation for dynamic analysis of transfer plates is presented. The method is based on an unconventional Hamilton variational principle and a...
Understanding the compatibility of UK resource for dowel laminated timber construction
Presentation / Conference
Plowas, W., Bell, T., Hairstans, R., & Williamson, J. B. (2016, June)
Understanding the compatibility of UK resource for dowel laminated timber construction. Paper presented at Integrated Design Conference
Dowel Laminated Timber (DLT also know as Brettstapel) is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements. The tech...
Some awkward questions about density
Conference Proceeding
Ridley-Ellis, D., & Cramer, M. (2020)
Some awkward questions about density. In Timber 2020 Conference Proceedings. , (99-110
There are several different concepts of wood density, such as specific gravity, basic density, dry density, and oven dry density. These are often confusing, and sometimes poor...
Timber grading potential of Douglas fir in the Republic of Ireland and the UK
Journal Article
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. (2019)
Timber grading potential of Douglas fir in the Republic of Ireland and the UK. International Wood Products Journal, 10(2), 64-69. https://doi.org/10.1080/20426445.2019.1617984
Results of the recently approved machine control grading settings for Douglas fir in the Republic of Ireland and the UK have shown that the species can be graded to C18, and h...
The use of a visual grading code of practice in the UK in the assessment of the mechanical properties of in situ structural timber elements
Conference Proceeding
Bather, M. J., & Ridley-Ellis, D. J. (2019)
The use of a visual grading code of practice in the UK in the assessment of the mechanical properties of in situ structural timber elements. In SHATiS 2019: 5th International Conference on Structural Health Assessment of Timber Structures (89-98
The estimation of the mechanical properties of in situ timber elements is an essential part of the structural appraisal of many existing buildings and structures. Currently, i...
Test Machine Effect in the determination of modulus of elasticity for strength-graded timber
Conference Proceeding
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2021)
Test Machine Effect in the determination of modulus of elasticity for strength-graded timber. In WCTE 2021: World Conference on Timber Engineering Proceedings
This paper investigates if the relationship between the global and local moduli of elasticity (MoE), measured in bending tests, is affected by the test machines employed, and ...
The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood
Journal Article
Ridley-Ellis, D. (2019)
The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood. Pro Ligno, 15(4), 32-39
The paper presents the results of non-destructive longitudinal resonance (impulse excitation technique), and mechanical flexural testing, of a batch of European beech wood (Fa...
TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. (2018)
TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes). WoodProps for Ireland project
Grading machines
MTG 960
mtgBATCH 962 mtgBATCH 966
MTG 920
mtgBATCH 922
mtgBATCH 926
Douglas fir (Pseudotsuga menziesii)
(PSMN)
Permitted timber sizes
Thickness: 33 mm to 84...
The Use of Torsion Test Method to Evaluate the Shear Properties of Timber Joists
Conference Proceeding
Khokhar, A., & Zhang, J. (2012)
The Use of Torsion Test Method to Evaluate the Shear Properties of Timber Joists. In P. Quenneville (Ed.), Proceedings of the World Conference on Timber Engineering (WCTE 2012)
This paper presents details of the experimental method and test results from a series of torsion tests undertaken to evaluate the shear modulus and shear strength of solid tim...