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http://dx.doi.org/10.12989/sem.2012.42.6.883

Yield line mechanism analysis of cold-formed channel sections with edge stiffeners under bending  

Maduliat, S. (Department of Civil Engineering, Monash University, Clayton Campus)
Bambach, M.R. (IRMRC, Faculty of Science, University of New South Wales)
Zhao, X.L. (Department of Civil Engineering, Monash University, Clayton Campus)
Publication Information
Structural Engineering and Mechanics / v.42, no.6, 2012 , pp. 883-897 More about this Journal
Abstract
Cold-formed channel sections are used in a variety of applications in which they are required to absorb deformation energy. This paper investigates the collapse behaviour and energy absorption capability of cold-formed steel channels with flange edge stiffeners under large deformation major-axis bending. The Yield Line Mechanism technique is applied using the energy method, and based upon measured spatial plastic collapse mechanisms from experiments. Analytical solutions for the collapse curve and in-plane rotation capacity are developed, and used to model the large deformation behaviour and energy absorption. The analytical results are shown to compare well with experimental values. Due to the complexities of the yield line model of the collapse mechanism, a simplified procedure to calculate the energy absorbed by channel sections under large bending deformation is developed and also shown to compare well with the experiments.
Keywords
cold-formed steel; channels; yield line mechanisms; major-axis bending; energy absorption;
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  • Reference
1 AS 4100 (1998), Australian Standard, Steel Structures, Standards Australia, Sydney.
2 Bambach, M.R., Tan, G. and Grzebieta, R.H. (2009), "Steel spot-welded hat sections with perforations subjected to large deformation pure bending", Thin Wall. Struct., 47(11), 1305-1315.   DOI   ScienceOn
3 Cimpoeru, S.J. (1992), "The modelling of the collapse during roll-over of bus frames consisting of square thinwalled tubes", Doctor of Philosophy, Civil Engineering, Monash University.
4 Davies, P., Kemp, K.O. and Walker, A.C. (1975), "Analysis of the failure mechanism of an axially loaded simply supported steel plate", Proceedings of the Institution of Civil Engineers (London), Part 1 - Design & Construction, 59(2), 645-658.   DOI
5 Elchalakani, M. (2007), "Plastic mechanism analyses of circular tubular members under cyclic loading Source", Thin Wall. Struct., 45(12), 1044-1057.   DOI   ScienceOn
6 Kecman, D. (1983), "Bending collapse of rectangular and square section tubes", Int. J. Mech. Sci., 25(9-10), 623-636.   DOI   ScienceOn
7 Kotelko, M. (1996), "Ultimate load and post failure behaviour of box-section beams under pure bending", Eng. Trans., 44(2), 229-251.
8 Kotelko, M. (2007), "Load-carrying capacity and energy absorption of thin-walled profiles with edge stiffeners", Thin Wall. Struct., 45(10-11), 872-876.   DOI   ScienceOn
9 Maduliat, S., Bambach, M.R. and Zhao, X.L. (2012), "Inelastic behaviour and design of cold-formed channel sections in bending", Thin Wall. Struct., 51, 158-166.   DOI
10 Murray, N.W. and Khoo, P.S. (1981), "Some basic plastic mechanisms in the local buckling of thin-walled steel structures", Int. J. Mech. Sci., 23(12), 703-713.   DOI   ScienceOn
11 Murray, N.W. (1984), "The effect of shear and normal stress on the plastic moment capacity on inclined hinges in thin-walled steel structures", Festschrift Roik, Inst. fur Konstruktiven Ingenieurbau, Ruhr Univ. Bochum, 84, 237-248.
12 Nagel, G. (2005), "Impact and energy absorption of straight and tapered rectangular tubes", Doctor of Philosophy, Built Environment & Engineering, Queensland University of Technology.
13 Setiyono, H. (2007), "Plastic mechanism and elastic-analytical approaches applied to estimate the strength of an axially compressed-thin-walled channel steel section beam", Int. J. Mech. Sci., 49(3), 257-266.   DOI   ScienceOn
14 Tan, G. (2009), "Perforated hat sections subjected to large rotation pure bending", Master of Engineering Science, Civil Engineering, Monash University.
15 Ungureanu, V., Kotelko, M., Mania, R.J. and Dubina, D. (2010), "Plastic mechanisms database for thin-walled cold-formed steel members in compression and bending", Thin Wall. Struct., 48(10-11), 818-826.   DOI   ScienceOn
16 Ye, J.H., Zhao, X.L., Van, B.D. and A-Mahaidi, R. (2007), "Plastic mechanism analysis of fabricated square and triangular sections under axial compression", Thin Wall. Struct., 45(2), 135-148.   DOI   ScienceOn
17 Zhao, X.L. and Hancock, G.J. (1993), "Experimental verification of the theory of plastic-moment capacity of an inclined yield line under axial force", Thin Wall. Struct., 15(3), 209-233.   DOI   ScienceOn
18 Zhao, X.L. and Hancock, G.J. (1993a), "A theoretical analysis of the plastic-moment capacity of an inclined yield line under axial force", Thin Wall. Struct., 15(3), 185-207.   DOI   ScienceOn
19 Zhao, X.L. (2003), "Yield Line Mechanism Analysis of Steel Members and Connections", Prog. Struct. Eng. Mater., 5(4), 252-262.   DOI   ScienceOn