Structural steel elliptical hollow sections
Lead Research Organisation:
Imperial College London
Department Name: Civil & Environmental Engineering
Abstract
Structural elliptical hollow sections represent a recent addition to the range of cross-sections available to structural engineers. However, despite widespread interest in their application on the basis of both architectural appeal and structural efficiency, a lack of verified design guidance is inhibiting uptake. The proposed project aims to overcome this through the generation of statistically validated design rules, developed on the basis of a sound theoretical understanding, carefully conducted laboratory tests and sophisticated numerical modelling. Laboratory testing will be the key instrument for the generation of the fundamental data required, and once calibrated, numerical modelling will be used to investigate the importance of the individual parameters and to extend the range of available data. Design rules will be developed with structural engineers in mind, with careful consideration given to finding the right balance between accuracy of result and ease of calculation method. All new design guidance will be developed in line with the Eurocode framework, with the aim that the work may be considered for incorporation into future revisions of the Code. Dissemination of the findings to the academic community will be made through journal publications and by presentation at International conferences.This is a joint application between Imperial College London and the University of Leeds, making use of the combined experience and facilities of the applicants - Dr Gardner from Imperial College with expertise of the instability of tubular steel and stainless steel elements, and Dr Lam from the University of Leeds with expertise of connections and concrete filled composite tubes.
People |
ORCID iD |
Leroy Gardner (Principal Investigator) |
Publications
Xu Z
(2017)
Nonlinear stability of elastic elliptical cylindrical shells under uniform bending
in International Journal of Mechanical Sciences
Silvestre N
(2011)
Elastic local post-buckling of elliptical tubes
in Journal of Constructional Steel Research
Law K
(2014)
Global instability of elliptical hollow section beam-columns under compression and biaxial bending
in International Journal of Steel Structures
Law K
(2012)
Lateral instability of elliptical hollow section beams
in Engineering Structures
Law K
(2013)
Buckling of elliptical hollow section members under combined compression and uniaxial bending
in Journal of Constructional Steel Research
Lam D
(2016)
Behaviour of Axially Loaded Concrete Filled Stainless Steel Elliptical Stub Columns
in Advances in Structural Engineering
Gardner L.
(2011)
Structural behaviour of elliptical hollow sections under combined compression and uniaxial bending
in Advanced Steel Construction
Espinos A
(2011)
Fire behaviour of concrete filled elliptical steel columns
in Thin-Walled Structures
Chan T
(2010)
Structural design of elliptical hollow sections: a review
in Proceedings of the Institution of Civil Engineers - Structures and Buildings
Abela J
(2012)
Elastic buckling of elliptical tubes subjected to generalised linearly varying stress distributions
in Thin-Walled Structures
Description | Structural behaviour of oval hollow sections has been characterised and explained |
Exploitation Route | Inclusion in International Design codes. The findings are now included in the draft for the new European Standard prEN 1993-1-1. |
Sectors | Construction |
Description | The research findings have been adopted in manufacturer design guidance (UK, EU, US), UK design tables and NCCI and structural design software (NIDA). The findings have now been included in the new European Standard prEN 1993-1-1. |
First Year Of Impact | 2017 |
Sector | Construction |
Impact Types | Economic |
Description | European Commission (EC) |
Amount | £200,000 (GBP) |
Funding ID | FRISCC |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 06/2012 |
End | 06/2015 |