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{Lapira:2024:10.1016/j.tws.2024.111908,
author = {Lapira, L and Gardner, L and Wadee, MA},
doi = {10.1016/j.tws.2024.111908},
journal = {Thin Walled Structures},
title = {A new model for calculating the ultimate shear resistance of steel I-section girders},
url = {http://dx.doi.org/10.1016/j.tws.2024.111908},
year = {2024}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The design resistance in shear of thin-walled I-sections has elicited numerous theories over the past decades. While there is a consensus on the post-buckling tension-field action that increases the ultimate resistance of thin webs in shear, the mechanism governing this tension-field action still remains debated. Presently, four constituent components for the shear resistance of I-sections are identified: (1) the resistance of the isolated web subject to a pure shear stress; (2) an increase in the web buckling stress due to flexural restraints provided by the flanges; (3) an increased web post-buckling resistance due to membrane restraint provided by the flanges; and (4) a direct contribution from the flanges to the shear resistance of the I-section. Each of these components is examined through parametric studies using finite element (FE) models analysed within Abaqus that are validated against published experimental results. A new design methodology for the resistance of I-sections in shear is presented, with closed-form expressions developed for each of the four component contributions. When compared with the current approach within EN 1993-1-5, the proposed formulae predict the shear resistance of the cross-section with greater accuracy and consistency.
AU  - Lapira,L
AU  - Gardner,L
AU  - Wadee,MA
DO  - 10.1016/j.tws.2024.111908
PY  - 2024///
SN  - 0263-8231
TI  - A new model for calculating the ultimate shear resistance of steel I-section girders
T2  - Thin Walled Structures
UR  - http://dx.doi.org/10.1016/j.tws.2024.111908
UR  - https://www.sciencedirect.com/science/article/pii/S0263823124003513
UR  - http://hdl.handle.net/10044/1/111161
ER  -
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