Simplified Analysis and Design of Cold-Formed Lipped Channels Subject to Combined Shear and Compression Loadings
Publication: Practice Periodical on Structural Design and Construction
Volume 23, Issue 3
Abstract
The objective of this article is to present new analytical expressions for lipped channels subject to combined shear and compressive loadings by accounting for rotational and lateral restraints. Very limited design guidelines are available to use in practice for channels subject to this load combination with partially restrained boundary conditions. North American codes provide expressions for the case of simply supported with free in-plane boundary conditions. The article also highlights the influence of flange and lip geometric properties on local web shear buckling stress. Results show an apparent decrease in critical shear stress when the channel longitudinal edges are fully restrained against lateral movement. The cost savings of the proposed design procedures are also highlighted.
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References
AISI (American Iron and Steel Institute). 2007. North American specification for the design of cold formed steel structural members. Washington, DC: AISI.
Bedair, O. 2009. “A cost-effective design procedure for cold-formed lipped channels under uniform compression.” Thin Walled Struct. 47 (11): 1281–1294.https://doi.org/10.1016/j.tws.2009.04.001.
Bedair, O. 2011a. “Practical design considerations for light-weight channels under combined compression, major and minor axes bending.” Pract. Period. Struct. Des. Constr. 16 (1): 15–23.https://doi.org/10.1061/(ASCE)SC.1943-5576.0000066.
Bedair, O. 2011b. “Serviceability and ultimate limit states of channels under compression and bi-axial bending.” J. Constr. Steel Res. 67 (10): 1415–1425. https://doi.org/10.1016/j.jcsr.2011.03.015.
Bedair, O. 2014. “Design space representation of channel members for industrial applications.” Int. J. Steel Struct. 14 (3): 529–538. https://doi.org/10.1007/s13296-014-3009-6.
Bedair, O. 2015. “An analytical expression to determine ‘realistic’ shear buckling stress of cold formed lipped channels.” J. Steel Constr. 8 (1): 53–58.https://doi.org/10.1002/stco.201510007.
Cook, I. T., and K. C. Rocky. 1963. “Shear buckling of rectangular plates with mixed boundary conditions.” Aeronaut. Q. 14 (4): 349–356. https://doi.org/10.1017/S0001925900002900.
CRC (Column Research Committee of Japan). 1971. Handbook of structural stability. Tokyo: Corona.
CSA (Canadian Standards Association). 2007. North American specification for the design of cold-formed steel structural members. CSA-S136-07. Rexdale, ON, Canada: CSA.
Degtyareva, N., and V. Degtyarev. 2016. “Experimental investigation of cold-formed steel channels with slotted webs in shear.” Thin Walled Struct. 102: 30–42. https://doi.org/10.1016/j.tws.2016.01.012.
Dundu, M., and P. van Tonder. 2014. “Local buckling strength of stainless steel beam webs subjected to a stress gradient.” Thin Walled Struct. 77: 48–55.https://doi.org/10.1016/j.tws.2013.11.014.
Keerthan, P., M. Mahendran, and D. Hughes. 2014. “Numerical studies and design of hollow flange channel beams subject to combined bending and shear actions.” Eng. Struct. 75: 197–212.https://doi.org/10.1016/j.engstruct.2014.05.022.
Maduliat, S., P. Mendis, and T. Ngo. 2015. “Failure modes and buckling coefficient of partially stiffened cold-formed sections in bending.” J. Constr. Steel Res. 111: 21–30.
Mahendran, M., and N. Murray. 1986. “Elastic buckling analysis of ideal thin-walled structures under combined loading using a finite strip method.” Thin Walled Struct. 4 (5): 329–362. https://doi.org/10.1016/0263-8231(86)90029-7.
Martins, A. D., P. B. Dinis, D. Camotim, and P. Providência. 2015. “On the relevance of local-distortional interaction effects in the behaviour and design of cold-formed steel columns.” Comput. Struct. 160: 57–89.https://doi.org/10.1016/j.compstruc.2015.08.003.
Wan, H.-X., and M. Mahendran. 2015. “Behaviour and strength of hollow flange channel sections under torsion and bending.” Thin Walled Struct. 94: 612–623.https://doi.org/10.1016/j.tws.2015.05.013.
Ziemian, R. 2010. Guide to stability design criteria for metal structures. 6th ed. Hoboken, NJ: Wiley.
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Published In
Practice Periodical on Structural Design and Construction
Volume 23 • Issue 3 • August 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Aug 21, 2017
Accepted: Nov 6, 2017
Published online: Apr 25, 2018
Published in print: Aug 1, 2018
Discussion open until: Sep 25, 2018
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