Outputs (148)

Influence of parameters affecting the racking strength of partially anchored timber framed walls (2018)
Presentation / Conference Contribution
Zhang, B., Dohnju, R., Kermani, A., Porteous, J., & D'Amico, B. (2018, August). Influence of parameters affecting the racking strength of partially anchored timber framed walls. Presented at World Conference on Timber Engineering (WCTE) 2018, Seoul, Korea

A test-based assessment of the racking performance of partially anchored timber framed walls is described in this paper. The tested wall specimens were constructed and tested at the Centre for Timber Engineering (Edinburgh Napier University, UK) cons... Read More about Influence of parameters affecting the racking strength of partially anchored timber framed walls.

Grading of British Timber (2018)
Journal Article
Ridley-Ellis, D. (2018). Grading of British Timber. The Full Circle: The Journal of the Association of Scottish Hardwood Sawmillers, 34-36

A summary of grading of home grown timber for the magazine of the Association of Scottish Hardwood Sawmillers (ASHS).

Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance (2018)
Presentation / Conference Contribution
Ridley-Ellis, D., Adams, S., & Lehneke, S. (2018, August). Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance. Presented at World Conference on Timber Engineering, Seoul, Republic of Korea

The main commercial species in the UK and Ireland is Sitka spruce (Picea sitchensis), which is graded in combination with a small amount of Norway spruce (P. abies). It is typically graded to the European strength class C16, but actually has superior... Read More about Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance.

Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity (2018)
Presentation / Conference Contribution
Khokhar, A., & Zhang, J. (2018, August). Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity. Presented at World Conference on Timber Engineering, Seoul, Republic of Korea

This paper presents the work that was undertaken to use torsion tests to evaluate the shear modulus of wood joists. The relationship of the shear modulus with modulus of elasticity, obtained from bending tests, was examined. Testing standard EN408 h... Read More about Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity.

Automatic code compliance with multi-dimensional data fitting in a BIM context (2018)
Journal Article
Patlakas, P., Livingstone, A., Hairstans, R., & Neighbour, G. (2018). Automatic code compliance with multi-dimensional data fitting in a BIM context. Advanced engineering informatics, 38, 216-231. https://doi.org/10.1016/j.aei.2018.07.002

BIM-based tools can contribute to addressing some of the challenges faced by structural engineering practitioners. A BIM-based framework for the development of components that deliver Automatic Code Compliance (ACC) is presented. The structural desig... Read More about Automatic code compliance with multi-dimensional data fitting in a BIM context.

Strength grading of timber in the UK in 2018 (2018)
Presentation / Conference Contribution
Ridley-Ellis, D. (2018, June). Strength grading of timber in the UK in 2018. Paper presented at Timber 2018, London

This paper summarises the state-of-the-art of strength grading of UK-grown timber. It lists the following information along with the primary references: visual grading grades and strength class assignments; grading machines with approved settings for... Read More about Strength grading of timber in the UK in 2018.

Impulse excitation measurement of small changes in elastic moduli and damping using R (2018)
Journal Article
Ridley-Ellis, D., Libeau, M., & Mignerat, D. (2018). Impulse excitation measurement of small changes in elastic moduli and damping using R. International Wood Products Journal, 1-6. https://doi.org/10.1080/20426445.2018.1475928

Impulse excitation is commonly used to assess wood stiffness in both scientific and industrial settings. Modes of vibration are excited by a mechanical impulse and their resonant frequencies measured to calculate elastic moduli. It is also possible t... Read More about Impulse excitation measurement of small changes in elastic moduli and damping using R.

Equipping ourselves for future forests and timber. (2018)
Presentation / Conference Contribution
Ridley-Ellis, D. (2018, May). Equipping ourselves for future forests and timber. Presented at Institute of Chartered Foresters National Conference

Presentation to the Institute of Chartered Foresters National Conference, "Innovation for change - New drivers for tomorrow’s forestry" Edinburgh 2-3 May 2013

https://www.charteredforesters.org/

TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes) (2018)
Report
Ridley-Ellis, D., & Gil-Moreno, D. (2018). TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes). Ljubljana: 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 mm
Width: 68 mm to 248 mm

C35/16
C27/16,
C24/C16, C24/14... Read More about TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes).

Mass Customisable Roofing Solutions for the New Build and Retrofit Markets in the UK (2018)
Presentation / Conference Contribution
Plowas, W., Hairstans, R., & Felingham, J. (2018, March). Mass Customisable Roofing Solutions for the New Build and Retrofit Markets in the UK. Presented at Modular and Offsite Construction Summit

Major house builders and contractors in the UK are seeking alternative solutions to form the structural frame of pitched roofs for various reasons; speed, health and safety, quality ease of use. They are exploring the use of offsite systems, which ar... Read More about Mass Customisable Roofing Solutions for the New Build and Retrofit Markets in the UK.

The merits of varying forms of mass timber products for offsite and modular construction (2018)
Presentation / Conference Contribution
Hairstans, R., Smith, R., & Wilson, P. (2018, March). The merits of varying forms of mass timber products for offsite and modular construction. Presented at Modular and Offsite Construction Summit

Mass timber is a family of Solid Laminate Timber Systems (SLTS) formed from smaller sections of timber connected by glue, mechanical fixings, moisture movement or a combination of methods. These products, which include Structural Composite Lumber, G... Read More about The merits of varying forms of mass timber products for offsite and modular construction.

Study on the Impact of Size and Position of the Shear Field in Determining the Shear Modulus of Glulam Beam Using Photogrammetry Approach (2018)
Journal Article
Gharavi, N., & Zhang, H. (2018). Study on the Impact of Size and Position of the Shear Field in Determining the Shear Modulus of Glulam Beam Using Photogrammetry Approach. International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering, 12(3), 194-198. https://doi.org/10.1999/1307-6892/10008636

The shear modulus of a timber beam can be determined using torsion test or shear field test method. The shear field test method is based on shear distortion measurement of the beam at the zone with the constant transverse load in the standardized fou... Read More about Study on the Impact of Size and Position of the Shear Field in Determining the Shear Modulus of Glulam Beam Using Photogrammetry Approach.

Mass Timber - an introduction to solid laminate timber systems (2018)
Book
Hairstans, R. (2018). Mass Timber - an introduction to solid laminate timber systems. Arcamedia Ltd

The past two decades have witnessed an extraordinary upsurge in the use of mass timber products and systems in construction - a global phenomenon driven by greater emphasis on the sustainable use of renewable resources and by significant technologica... Read More about Mass Timber - an introduction to solid laminate timber systems.

Home grown timber now and in the future. (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, November). Home grown timber now and in the future. Presented at WTS British Timber Seminar

Presentation to the wood technology society "British Timber Seminar" at IOM3, November 2017

Timber grading update (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, November). Timber grading update. Presented at SIRT update seminar

The latest news on timber grading standards and how they effect structural timber production in UK and IE

Assessing timber quality (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, October). Assessing timber quality. Presented at Royal Forestry Society Future Technology Conference, Moulton College, Northants

The use of technology for assessing and monitoring timber quality in the forest and at harvesting

Assessing timber quality. (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, October). Assessing timber quality. Presented at 1st National Forestry and Aboriculture Student Conference, Moulton College, Moulton, Northamptonshire

Presentation about technology for assessing timber quality, at the Royal Forestry Society Future Foresters Technology Day (1st National Forestry and Aboriculture Student Conference)

Parametric Evaluation of Racking Performance of Platform Timber Framed Walls (2017)
Journal Article
Dhonju, R., D’Amico, B., Kermani, A., Porteous, J., & Zhang, B. (2017). Parametric Evaluation of Racking Performance of Platform Timber Framed Walls. Structures, 12, 75-87. https://doi.org/10.1016/j.istruc.2017.08.003

This paper provides a quantitative assessment of the racking performance of partially anchored timber framed walls, based on experimental tests. A total of 17 timber framed wall specimens, constructed from a combination of materials under different l... Read More about Parametric Evaluation of Racking Performance of Platform Timber Framed Walls.

Holistic study of a timber double skin façade: Whole life carbon emissions and structural optimisation (2017)
Journal Article
Pomponi, F., & D'Amico, B. (2017). Holistic study of a timber double skin façade: Whole life carbon emissions and structural optimisation. Building and Environment, 124, 42-56. https://doi.org/10.1016/j.buildenv.2017.07.046

The upkeep of existing buildings has a great role to play in reducing the carbon emissions of the built environ-ment. Façade upgrade represents one of the most effective interventions to improve both thermal efficiencyand aesthetic appeal of existing... Read More about Holistic study of a timber double skin façade: Whole life carbon emissions and structural optimisation.

Timber properties of minor conifer species in Britain and future marketing opportunities (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, May). Timber properties of minor conifer species in Britain and future marketing opportunities. Presented at The National Forestry Conference for Ireland "an appraisal of the silvicultural and marketing potential of coniferous alternatives to Sitka spruce"