Developing a BIM and simulation-based hazard assessment and visualization framework for CLT construction design (2021)
Journal Article
BuHamdan, S., Duncheva, T., & Alwisy, A. (2021). Developing a BIM and simulation-based hazard assessment and visualization framework for CLT construction design. Journal of Construction Engineering and Management, 147(3), https://doi.org/10.1061/%28ASCE%29CO.1943-7862.0002000

The sustainability of the urban built environment has previously been investigated through many angles in relation to the growing global urban population and provision of energy-efficient housing. One emerging trend in sustainable medium-density cons... Read More about Developing a BIM and simulation-based hazard assessment and visualization framework for CLT construction design.

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.

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.

Timber modern methods of construction: a comparative study (2018)
Thesis
Sanna, F. Timber modern methods of construction: a comparative study. (Thesis). Edinburgh Napier University. http://researchrepository.napier.ac.uk/Output/1256099

The doctoral research revolves around a comparative study of timber modern methods of construction for low-rise, residential buildings in Scotland.
The building techniques studied involve both timber-frame panel construction (open-panel and closed-... Read More about Timber modern methods of construction: a comparative study.

Racking performance of Platform timber framed walls assessed by rigid body relaxation technique (2016)
Journal Article
D'Amico, B., Kermani, A., Porteous, J., Dhonju, R., & Zhang, B. (2016). Racking performance of Platform timber framed walls assessed by rigid body relaxation technique. Construction and Building Materials, 129, 148-158. https://doi.org/10.1016/j.conbuildmat.2016.10.106

A new method to assess the raking performance of Platform timber framed walls, is provided in this study: each component of the unit wall assembly is assumed as rigid, hence allowing to drastically reduce the overall number of DoFs involved within th... Read More about Racking performance of Platform timber framed walls assessed by rigid body relaxation technique.

A comparison between Volumetric Timber Manufacturing Strategies in the UK and mainland Europe (2016)
Presentation / Conference Contribution
Duncheva, M., & Bradley, F. F. (2016, September). A comparison between Volumetric Timber Manufacturing Strategies in the UK and mainland Europe. Paper presented at Modular and Offsite Construction Summit (MOC)

The construction sector in the UK is currently being challenged by an urgent need to produce housing. This requirement is within a context of increasingly stringent greenhouse gas emission
legislation and tough goals to reduce build time by 50% and... Read More about A comparison between Volumetric Timber Manufacturing Strategies in the UK and mainland Europe.

Multi-dimensional data fitting for the structural design of a simple timber connection (2016)
Presentation / Conference Contribution
Livingstone, A., Patlakas, P., Milne, M., Smith, S., & Hairstans, R. (2016, August). Multi-dimensional data fitting for the structural design of a simple timber connection. Presented at World Conference on Timber Engineering, Vienna, Austria

This paper presents a novel method of automating the structural design of timber connections and ensuring code compliance within a Building Information Modelling (BIM) context. The mathematical method of Multi Dimensional Data Fitting (MDDF) is prese... Read More about Multi-dimensional data fitting for the structural design of a simple timber connection.

Taking timber beyond traditional boundaries. (2016)
Book Chapter
Hairstans, R. (2016). Taking timber beyond traditional boundaries. In TRADA timber industry yearbook 2016. Exova BM TRADA

Timber is a natural, hygroscopic, anisotropic material that must be properly understood if it is to be used efficiently within the built environment. With good silvicultural practices timber can be sourced responsibly and converted (with relatively l... Read More about Taking timber beyond traditional boundaries..

Making the grade and maximising the opportunities. (2016)
Presentation / Conference Contribution
Ridley-Ellis, D. (2016, April). Making the grade and maximising the opportunities. Presented at Institute of Chartered Foresters 2016 National Conference “The Timber Supply Chain – Dynamics and Opportunities”

Institute of Chartered Foresters National Conference 2016

Invited presentation covering:
A quick explanation of key properties of wood, relevant to construction
The extent of variation in these properties, between and within species – and the... Read More about Making the grade and maximising the opportunities..

Viability of cross-laminated timber from UK resources (2015)
Journal Article
Crawford, D., Smith, S., Hairstans, R., & Papastavrou, P. (2015). Viability of cross-laminated timber from UK resources. Proceedings of the ICE - Construction Materials, 168(3), 110-120. https://doi.org/10.1680/coma.14.00064

Cross-laminated timber is an innovative engineered timber product that can be used for almost all superstructure elements. It is typically produced from kiln-dried, fast-growing softwood timber. Currently there is no commercial production in the UK a... Read More about Viability of cross-laminated timber from UK resources.

Wood properties variation and their probabilistic assessment via non-destructive measurement. (2015)
Presentation / Conference Contribution
Ridley-Ellis, D. (2015, April). Wood properties variation and their probabilistic assessment via non-destructive measurement

Hosted COST Action FP1004 Training School - Modelling

Strength grading of sawn timber in Europe - an explanation for engineers. (2015)
Presentation / Conference Contribution
Ridley-Ellis, D., Stapel, P., & Baño, V. (2015, April). Strength grading of sawn timber in Europe - an explanation for engineers. Presented at COST Action FP 1004 - Final Meeting

The Forum (Wood). (2015)
Digital Artefact
Ridley-Ellis, D. (2015). The Forum (Wood)

Contributor to pre-recorded BBC World Service programme.

Is our attitude to wood changing? In Africa it’s a still the dominant fuel for daily survival and in Canada an architect is designing wooden high rise buildings. To discuss wood, architect M... Read More about The Forum (Wood)..

A form finding method for post formed timber grid shell structures. (2014)
Presentation / Conference Contribution
D'Amico, B., Kermani, A., & Zhang, H. (2014, July). A form finding method for post formed timber grid shell structures. Presented at World Conference Timber Engineering

Timber grid shells provide efficient ways of covering large openings with relatively small amount of materials. With three-dimensional CAD software, it is now possible to model a free-form surface and discretize it in smaller straight elements, thus... Read More about A form finding method for post formed timber grid shell structures..

Sole plate fixing details for modern methods of timber construction. (2014)
Book Chapter
Menendez, J., Leitch, K., & Hairstans, R. (2014). Sole plate fixing details for modern methods of timber construction. In S. Aicher, H. W. Reinhardt, & H. Garrecht (Eds.), Materials and joints in timber structures: recent development of technologies (109-118). Springer. https://doi.org/10.1007/978-94-007-7811-5_10

In order to resist lateral loads, modern methods of timber construction are reliant on the in-plane shear strength of the walls orientated parallel to the applied action. In closed panel systems, the shear stresses are transferred to the foundations... Read More about Sole plate fixing details for modern methods of timber construction..

Potential for estimating the age of instruments by characterisation of wood properties via acoustics. (2014)
Presentation / Conference Contribution
Ridley-Ellis, D., & Popescu, C.-M. (2014, September). Potential for estimating the age of instruments by characterisation of wood properties via acoustics. Presented at WoodMusiCK (FP1302) conference ‘multidisciplinary approach to wooden musical instrument identification’

The performance of musical instruments is sensitive to several wood properties that are affected by aging. These wood properties also change with temperature and humidity in ways that interact with (and change as a result of) aging processes. This of... Read More about Potential for estimating the age of instruments by characterisation of wood properties via acoustics..

Structural behaviour of timber frame closed panels for specification in the United Kingdom. (2014)
Presentation / Conference Contribution
Menendez, J., Leitch, K., & Hairstans, R. (2014, May). Structural behaviour of timber frame closed panels for specification in the United Kingdom. Presented at COST Action FP1004 Experimental Research with Timber

A series of closed timber frame wall panels were tested for racking capacity in
accordance with the standard BS EN594:2011 [1]. The test program was designed to
investigate the wall diaphragm performance of conventional and evolved (dual-frame)
pa... Read More about Structural behaviour of timber frame closed panels for specification in the United Kingdom..

Strength class of minor conifer species, as estimated from log acoustic measurements, small-clear data and knowledge of wood property variation (2014)
Presentation / Conference Contribution
Gil-Moreno, D., Ridley-Ellis, D., & McLean, J. P. (2014, May). Strength class of minor conifer species, as estimated from log acoustic measurements, small-clear data and knowledge of wood property variation. Presented at Experimental Research with Timber: Cost action FP1004

It is well known that wood properties vary from species to species. Additionally, trees grow wood in response to their requirement to grow in a certain environment. Therefore, timber properties also vary by region, by forest practice, and by the chan... Read More about Strength class of minor conifer species, as estimated from log acoustic measurements, small-clear data and knowledge of wood property variation.

Stiffness changes during low temperature thermal treatment of Scots pine, assessed by acoustic NDT (2014)
Presentation / Conference Contribution
Ridley-Ellis, D., Popescu, C.-M., Keating, B. A., Popescu, M.-C., & Hill, C. A. S. (2014, March). Stiffness changes during low temperature thermal treatment of Scots pine, assessed by acoustic NDT

The change, over time, in density, longitudinal modulus of elasticity, shear modulus and chemical structure of Scots pine (Pinus sylvestris) under thermal treatment (110, 120 and 140 C) was evaluated. The determinations of the specific changes were c... Read More about Stiffness changes during low temperature thermal treatment of Scots pine, assessed by acoustic NDT.

Adding value to the Forest through research. (2014)
Presentation / Conference Contribution
Ridley-Ellis, D. (2014, March). Adding value to the Forest through research. Presented at Wood Products Innovation Gateway closing event

Presentation at the closing event of the "Wood Products Innovation Gateway"