Imperial College London
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ProfessorLeroyGardner

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Structural Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6058leroy.gardner

 
 
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Location

 

435Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Hadjipantelis:2018:10.18057/ICASS2018.P.023,
author = {Hadjipantelis, N and Gardner, L and Wadee, MA},
doi = {10.18057/ICASS2018.P.023},
publisher = {Hong Kong Institute of Steel Construction Limited},
title = {Prestressed cold-formed steel beams – parametric studies and design recommendations},
url = {http://dx.doi.org/10.18057/ICASS2018.P.023},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Owing to their enhanced load-carrying and serviceability performances, prestressed coldformed steel beams can potentially open up new applications within the construction industry. In theproposed concept, an eccentric prestressing force is applied to cold-formed steel beams by means of acable that is housed within a bottom hollow flange. During prestressing, tensile stresses are inducedwithin the top region of the beam, thus delaying the occurrence of local instabilities under subsequentvertical loading. Consequently, the moment capacity of the beam is enhanced. Furthermore, owing tothe prestressing, a pre-camber is also induced along the member, thus decreasing the overall verticaldeflections significantly. Following discussion of the mechanical behaviour of the proposed beams,design recommendations are developed by employing interaction equations alongside the DirectStrength Method. Subsequently, finite element (FE) analysis is employed to investigate the effects of theprestress level and the section slenderness of the steel beam on the benefits obtained from theprestressing process. The parametric FE results are then utilised to assess the design recommendations.
AU  - Hadjipantelis,N
AU  - Gardner,L
AU  - Wadee,MA
DO  - 10.18057/ICASS2018.P.023
PB  - Hong Kong Institute of Steel Construction Limited
PY  - 2018///
TI  - Prestressed cold-formed steel beams – parametric studies and design recommendations
UR  - http://dx.doi.org/10.18057/ICASS2018.P.023
UR  - http://hdl.handle.net/10044/1/72717
ER  -
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