Plate Buckling Strength of Steel Wide-Flange Sections at Elevated Temperatures
Publication: Journal of Structural Engineering
Volume 139, Issue 11
Abstract
At ambient temperature, estimations of the postbuckling strength of steel plates (web and flanges) in wide-flange beams are based on the assumption that the stress at the edge of the plate equals the yield stress of the material. However, at elevated temperatures material behaves in a nonlinear manner beginning at very small strains. The work presented in this paper has shown that at elevated temperatures the ultimate buckling load occurs when stresses at the plate edge are smaller than the yield stress, which are typically defined at large strains such as at 2%. Hence, the current expressions for plate buckling strength at ambient temperature cannot be directly applied at elevated temperature. By taking into account the nonlinear behavior of steel at elevated temperatures, a new postbuckling strength equation for webs and flanges in wide-flange beams that correlates well with finite-element studies at elevated temperatures is proposed.
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Acknowledgments
This research is supported by the National Science Foundation (NSF) under Grant No. CMMI-0756488. All opinions, findings, and conclusions expressed in this paper are the authors and do not necessarily reflect the policies and views of the NSF.
References
AISC. (2010). Manual of steel construction: Load and resistance factor design, Chicago.
Becque, J., and Rasmussen, K. J. R. (2009). “Numerical investigation of the interaction of local and overall buckling of stainless steel I-columns.” J. Struct. Eng., 135(11), 1349–1356.
Bleich, F. (1952). Buckling strength of metal structures (engineering societies monographs), McGraw Hill, New York.
Dassault Systèmes. (2011). ABAQUS version 6.10EF documentation, Dassault Systèmes, Providence, RI.
European Committee for Standardization (CEN). (2001). “Eurocode 3: Design of steel structures—Part 1.2: General rules structural fire design.” ENV 1993-1-2:2001, Brussels, Belgium.
European Committee for Standardization (CEN). (2004). “Eurocode 3: Design of steel structures—Part 1.5: Plated structural elements.” ENV 1993-1-5:2004, Brussels, Belgium.
Galambos, T. V. (1988). Guide to stability design criteria for metal structures, 4th Ed., Wiley, New York.
Kalyanaraman, V., Winter, G., and Pekoz, T. (1977). “Unstiffened compression elements.” J. Struct. Div., 103(9), 1833–1848.
Knobloch, M., and Fontana, M. (2006). “Strain-based approach to local buckling of steel sections subjected to fire.” J. Constr. Steel Res., 62(1–2), 44–67.
Maljaars, J., Soetens, F., and Snijder, H. H. (2009). “Local buckling of aluminium structures exposed to fire. Part 1: Tests.” Thin-Walled Struct., 47(11), 1404–1417.
Quiel, S. E., and Garlock, M. E. M. (2010). “Calculating the buckling strength of steel plates exposed to fire.” Thin-Walled Struct., 48(9), 684–695.
Santiago, A., da Silva, L. S., Real, P. V., and Veljkovic, M. (2008). “Numerical study of a steel sub-frame in fire.” Comput. Struct., 86(15–16), 1619–1632.
Schafer, B. W. (2002). “Local, distortional, and Euler buckling of thin-walled columns.” J. Struct. Eng., 128(3), 289–299.
Selamet, S., and Garlock, M. E. (2010). “Robust fire design of single plate shear connections.” Eng. Struct., 32(8), 2367–2378.
Selamet, S., and Garlock, M. E. (2012). “Predicting the maximum compressive beam axial force during fire considering local buckling.” J. Constr. Steel Res., 71, 189–201.
Timoshenko, S. P., and Gere, J. M. (1961). Theory of elastic stability, McGraw Hill, New York.
von Karman, T., Sechler, E. E., and Donnell, L. H. (1932). “The strength of thin plates in compression.” Trans. ASME, 54, 54–55.
Winter, G. (1968) “Thin-walled structures—Theoretical solutions and test results.” Preliminary publication of the 8th Congress, International Association for Bridge and Structural Engineering (IABSE), Zurich, Switzerland, 101–112.
Yang, K.-C., Chen, S.-J., Lin, C.-C., and Lee, H.-H. (2005). “Experimental study on local buckling of fire-resisting steel columns under fire load.” J. Constr. Steel Res., 61(4), 553–565.
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Published In
Journal of Structural Engineering
Volume 139 • Issue 11 • November 2013
Pages: 1853 - 1865
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 25, 2012
Accepted: Nov 1, 2012
Published online: Nov 3, 2012
Published in print: Nov 1, 2013
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