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

@article{Arrayago:2020:10.1016/j.tws.2020.106825,
author = {Arrayago, I and Real, E and Mirambell, E and Gardner, L},
doi = {10.1016/j.tws.2020.106825},
journal = {Thin Walled Structures},
pages = {1--12},
title = {The continuous strength method for the design of stainless steel hollow section columns},
url = {http://dx.doi.org/10.1016/j.tws.2020.106825},
volume = {154},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The Continuous Strength Method (CSM) provides accurate resistance predictions for both stocky andslender stainless steel cross-sections; in the case of the former, allowance is made for the beneficialeffects of strain hardening, while for the latter, design is simplified by the avoidance of effective widthcalculations. Although the CSM strain limits can be used in conjunction with advanced analysis for thestability design of members, for hand calculations, the method is currently limited to the determinationof cross-sectional resistance only, i.e. member buckling resistance is not covered. To address thislimitation, extension of the CSM to the design of stainless steel tubular section columns is presentedherein. The proposed approach is based on the traditional Ayrton-Perry formulation, but featuresenhanced CSM cross-section resistances and a generalized imperfection parameter that is a function ofcross-section slenderness. The value of the imperfection parameter increases as the slenderness of thecross-section reduces to compensate for the detrimental effect of plasticity on member stability that isnot directly captured in the elastic/first yield Ayrton-Perry approach. The accuracy of the proposedapproach is assessed against numerical results generated in the current study and existing experimentalresults collected from the literature. The presented comparisons show that the CSM providesconsistently more accurate member buckling resistance predictions than the current EN 1993-1-4 designrules for all stainless steel grades. The reliability of the proposed approach is demonstrated throughstatistical analyses performed in accordance with EN 1990. Finally, the paper presents a frameworkthrough which the proposed approach can be developed for other cross-section types and materials.
AU  - Arrayago,I
AU  - Real,E
AU  - Mirambell,E
AU  - Gardner,L
DO  - 10.1016/j.tws.2020.106825
EP  - 12
PY  - 2020///
SN  - 0263-8231
SP  - 1
TI  - The continuous strength method for the design of stainless steel hollow section columns
T2  - Thin Walled Structures
UR  - http://dx.doi.org/10.1016/j.tws.2020.106825
UR  - https://www.sciencedirect.com/science/article/pii/S0263823120307035?via%3Dihub
UR  - http://hdl.handle.net/10044/1/80060
VL  - 154
ER  -
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