Outputs (35)

Progressive collapse: Past, present, future and beyond (2024)
Journal Article
Elkady, N., Augusthus Nelson, L., Weekes, L., Makoond, N., & Buitrago, M. (2024). Progressive collapse: Past, present, future and beyond. Structures, 62, 106131. https://doi.org/10.1016/j.istruc.2024.106131

The world has seen a surge in rigorous study efforts on the progressive collapse of structures in the past few decades. These events have led to new standards and provisions in building codes of practice, many of which are still bei... Read More about Progressive collapse: Past, present, future and beyond.

Sensitivities Of Interfacial Bond-Sip Properties In Predicting The Behaviour Of FRP-Strengthened Concrete (2023)
Conference Proceeding
Augusthus Nelson, L., Weekes, L., & Milani, G. (2023). Sensitivities Of Interfacial Bond-Sip Properties In Predicting The Behaviour Of FRP-Strengthened Concrete. . https://doi.org/10.1007/978-3-031-44603-0_7

The performance of FRP-bonded concrete is heavily influenced by the properties of the bond between the two materials. Various bond-slip models incorporating interfacial bond properties have been developed to understand and predict this behaviour. In... Read More about Sensitivities Of Interfacial Bond-Sip Properties In Predicting The Behaviour Of FRP-Strengthened Concrete.

Generalised analytical solutions for linear and non-linear bond-slip models for externally bonded FRP to a concrete substrate (2023)
Journal Article
Augusthus Nelson, L., Weekes, L., Milani, G., & Al-Allaf, M. (2024). Generalised analytical solutions for linear and non-linear bond-slip models for externally bonded FRP to a concrete substrate. Engineering Structures, 298, https://doi.org/10.1016/j.engstruct.2023.117025

This article presents a set of novel analytical derivations from generalised bond-slip models using first principles, which can be used to predict experimental outcomes, including maximum load resistance, load-slip response, and strain throughout the... Read More about Generalised analytical solutions for linear and non-linear bond-slip models for externally bonded FRP to a concrete substrate.

Design of efficient steel trusses to resist progressive collapse (2022)
Journal Article
Elkady, N., Eljajeh, Y., Gilsenan, K., & Augusthus Nelson, L. (2022). Design of efficient steel trusses to resist progressive collapse. Structural engineer (London. 1988), 100(11), 14-17. https://doi.org/10.56330/jiot7288

Size effects in unreinforced and lightly reinforced concrete beams failing in flexure (2021)
Journal Article
Augusthus Nelson, L., Lees, J., & Weekes, L. (2022). Size effects in unreinforced and lightly reinforced concrete beams failing in flexure. Engineering Fracture Mechanics, 259, 107987. https://doi.org/10.1016/j.engfracmech.2021.107987

Fracture-based models commonly use a characteristic length as the basis for determining size effects in concrete beams. The characteristic length is related to the concrete fracture process zone and defined in terms of the concrete fracture propert... Read More about Size effects in unreinforced and lightly reinforced concrete beams failing in flexure.

The effect of metakaolin and hybrid polymers on the microstructure of concrete (2021)
Journal Article
concrete. Periodicals of engineering and natural sciences, 9(1), 162-173

It has been established that metakaolin (MK) can be applied as a supplementary cementitious material and that some polymers can enhance substantial properties of concrete. Previous studies showed that, when used in combination, MK and polymers can... Read More about The effect of metakaolin and hybrid polymers on the microstructure of concrete.

Experimental investigation of the residual behaviour of damaged masonry arch structures (2020)
Journal Article
Augusthus Nelson, L., & Swift, G. (2020). Experimental investigation of the residual behaviour of damaged masonry arch structures. Structures, 27, 2500-2512. https://doi.org/10.1016/j.istruc.2020.08.008

New masonry arch bridges are rarely constructed as part of modern transport networks, however they continue to remain an integral part of modern civil infrastructure due to their overall resilience. This resilience has led to extremely long service l... Read More about Experimental investigation of the residual behaviour of damaged masonry arch structures.

Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate (2020)
Journal Article
Augusthus Nelson, L., Al-Allaf, M., & Weekes, L. (2020). Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate. Composite Structures, 251, 112956. https://doi.org/10.1016/j.compstruct.2020.112596

In this paper, a set of explicit theoretical derivations from a generalised bond-slip model for an epoxy bonded fibre reinforced polymer (FRP) sheet to concrete are presented. The derivations address the maximum bond resistance, load-slip response,... Read More about Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate.

Validation of a finite element modelling approach on soil-foundation-structure interaction of a multi-storey wall-frame structure under dynamic loadings (2020)
Journal Article
Qaftan, O., Toma-Sabbagh, T., Weekes, L., & Augusthus Nelson, L. (2020). Validation of a finite element modelling approach on soil-foundation-structure interaction of a multi-storey wall-frame structure under dynamic loadings. Soil Dynamics and Earthquake Engineering, 131, https://doi.org/10.1016/j.soildyn.2020.106041

Validated numerical approaches are very important in dynamic studies of soil-structure interaction. Experimental outputs of physical models are required to validate the numerical approaches. Testing and analysis of an experimental scaled model is eco... Read More about Validation of a finite element modelling approach on soil-foundation-structure interaction of a multi-storey wall-frame structure under dynamic loadings.

Modeling the behavior of radially pinned brick triplets (2019)
Presentation / Conference
Haynes, J., Naggasa, A., Augusthus-Nelson, L., El-basir, F., & Alsaleh, A. (2019, October). Modeling the behavior of radially pinned brick triplets. Presented at 9th International Conference on Arch Bridges, Porto, Portugal

The continued use of many UK highway and railway masonry arch bridges is dependent upon maintaining robustness as the materials deteriorate over time. A common failure in multi-ring brickwork arches subject to fatigue, is ring separation. This pape... Read More about Modeling the behavior of radially pinned brick triplets.