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Effects of material nonlinearity on the global analysis and stability of stainless steel frames

Title: Effects of material nonlinearity on the global analysis and stability of stainless steel frames
Authors: Walport, F
Gardner, L
Real, E
Arrayago, I
Nethercot, DA
Item Type: Journal Article
Abstract: © 2017 Elsevier Ltd In structural frames, second order effects refer to the internal forces and moments that arise as a result of deformations under load (i.e. geometrical nonlinearity). EN 1993-1-1 states that global second order effects may be neglected if the critical load factor of the frame αcris greater than or equal to 10 for an elastic analysis, or greater than or equal to 15 when a plastic global analysis is used. No specific guidance is provided in EN 1993-1-4 for the design of stainless steel frames, for which the nonlinear stress-strain behaviour of the material will result in greater deformations as the material loses its stiffness. A study of the effects of material nonlinearity on the stability of stainless steel frames is presented herein. A series of different frame geometries and loading conditions are considered. Based on the findings, proposals for the treatment of the influence of material nonlinearity on the global analysis and design of stainless steel frames are presented.
Issue Date: 1-Jan-2018
URI: http://hdl.handle.net/10044/1/61121
DOI: https://dx.doi.org/10.1016/j.jcsr.2018.04.019
ISSN: 0143-974X
Journal / Book Title: Journal of Constructional Steel Research
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: 0905 Civil Engineering
Civil Engineering
Publication Status: Accepted
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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