Lightweight cold-formed steel (CFS) structures made of thin-walled sections are gaining popularity as a sustainable, affordable construction form for low- and medium-rise commercial and residential buildings. The advantages they offer include ease of off-site manufacture, reduced material utilisation and waste, and low cost. Compared to hot-rolled steel sections, CFS sections are more susceptible to local buckling due to the large width-to-thickness ratio of their sectional elements. Furthermore, the manufacturing process involves cold-work that affects the structural behaviour of CFS components. Low stiffness and strength in joints are structural deficiencies also inhibiting faster uptake. The aim of this project is to enhance the design and performance of stand-alone lightweight CFS structural systems at various environmental and loading conditions.
The specific objectives are:
- Experimentally determine the structural behaviour of the main load-bearing components of the CFS structural systems for multi-storey construction.
- Develop detailed finite element models of CFS components and connections validated by experiments to investigate their strength, stiffness, damping and ductility capacity.
- Optimise design of the CFS components incorporating practical and manufacturing constraints.
Successful completion of the project and publication of its results will likely lead to significant application in the CFS industry which is rapidly growing in the UK and overseas.
Candidates should have (or expect to achieve) a UK honours degree at 2.1 or above (or equivalent) in Civil/Strutural Engineering along with knowledge of structures and finite element modelling
• Apply for Degree of Doctor of Philosophy in Engineering
• State name of the lead supervisor as the Name of Proposed Supervisor
• State ‘Self-funded’ as Intended Source of Funding
• State the exact project title on the application form
When applying please ensure all required documents are attached:
• All degree certificates and transcripts (Undergraduate AND Postgraduate MSc-officially translated into English where necessary)
• Detailed CV
Informal inquiries can be made to Dr A Bagheri Sabbagh ([email protected]
) with a copy of your curriculum vitae and cover letter. All general enquiries should be directed to the Postgraduate Research School ([email protected]
Additional research costs (ARC) of £1,000-2,000 per annum may be required if the project involves experimental research. If the project is based on computational research only, there will be no ARC costs
1 Bagheri Sabbagh A., Petkovski M., Pilakoutas K., Mirghaderi R. (2013), Cyclic behaviour of bolted cold-formed steel moment connections: FE modelling including slip, J. Constr. Steel Res., 80, 100–108
2 Quatch W.M., et al. (2010). Effect of the manufacturing process on the behaviour of press-braked thin-walled steel columns. Engineering Structures, 32, 3501-3515.