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Stiffness reduction method for the design of steel columns and beam-columns
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Kucukler, Merih, Gardner, L. and Macorini, L. (2014) Stiffness reduction method for the design of steel columns and beam-columns. In: Structural Stability Research Council Annual Stability Conference, Toronto, Canada, 25-28 Mar 2014. Published in: Structural Stability Research Council Annual Stability Conference 2014, SSRC 2014 pp. 297-314. ISBN 9781632667106.
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Abstract
A stiffness reduction approach is presented in this paper, which utilises Linear Buckling Analysis (LBA) and Geometrically Nonlinear Analysis (GNA) in conjunction with developed stiffness reduction functions for the design of columns and beam-columns in steel frames. The proposed stiffness reduction approach obviates the need to model member imperfections and to make member buckling checks. While LBA with appropriate stiffness reduction provides inelastic buckling loads of columns, GNA with stiffness reduction is performed for the prediction of beam-column failure. In addition to regular members, the accuracy and practicality of the method is illustrated for irregular members. For the latter case, results indicate that the proposed stiffness reduction method provides more accurate strength predictions in comparison to traditional design approaches. The influence of moment gradient on the development of plasticity (i.e. stiffness reduction) is accounted for by incorporating simple moment gradient factors into the stiffness reduction expressions originally derived for members under uniform bending. The accuracy of the proposed stiffness reduction approach is verified against results obtained through non-linear finite element modelling for all of the considered cases.
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Structural Stability Research Council Annual Stability Conference 2014, SSRC 2014 | ||||
Publisher: | Structural Stability Research Council (SSRC) | ||||
Place of Publication: | Toronto, ON | ||||
ISBN: | 9781632667106 | ||||
Official Date: | 2014 | ||||
Dates: |
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Page Range: | pp. 297-314 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Description: | Conference Code:107576 |
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Conference Paper Type: | Paper | ||||
Title of Event: | Structural Stability Research Council Annual Stability Conference | ||||
Type of Event: | Conference | ||||
Location of Event: | Toronto, Canada | ||||
Date(s) of Event: | 25-28 Mar 2014 | ||||
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