Collapse Response and Design of Deep Steel Columns Subjected to Lateral Displacement
Publication: Journal of Structural Engineering
Volume 143, Issue 9
Abstract
Recent experimental and computational studies have shown that the inelastic behavior of deep steel columns, where the cross-section depth is substantially greater than the flange width, is not yet well understood. To address this shortcoming, detailed finite element models that are validated using available experimental data, are used to study the response of deep steel columns subjected to combined axial and lateral loading. Two loading protocols are considered: (1) members that undergo monotonic lateral loading under a constant compressive force until failure (load then drift, i.e., LTD protocol); and (2) members that are subjected to various initial axial loads, displaced to a specified drift and then further loaded until failure (drift then load, i.e., DTL protocol). The loading protocols are designed to determine the effect that initial axial load, axial shortening, and local buckling effects play in predicting the failure mode and axial resistance of the member. Regression analysis is performed on the results to determine which parameters are most significant. The simulation studies show that global out-of-plane slenderness is a key parameter influencing behavior and that the effective buckling length of deep steel columns could be substantially greater than its initial value, a finding that has implications for seismic design.
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Acknowledgments
This work was supported by the University of Michigan and the U.S. NSF grants number CMMI-0928193 and CMMI-1344372. Any opinions, findings, conclusions, and/or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the sponsor.
References
AISC. (2010). Seismic design manual, 2nd Ed., Chicago.
AISC. (2011). Steel construction manual, 14th Ed., Chicago.
ANSI (American National Standards Institute) and AISC. (2010). “Seismic provisions for structural steel buildings.” ANSI/AISC 341-10, Chicago.
Arasaratnam, P., Sivakumaran, K. S., and Tait, M. J. (2011). “True stress-true strain models for structural steel elements.” ISRN Civil Eng., 2011(1), 1–11.
Chatterjee, S., Hadi, A., and Price, B. (2000). Regression analysis by example, 3rd Ed., Wiley, New York.
Cheng, X., Chen, Y., and Pan, L. (2013). “Experimental study on steel beam-columns composed of slender H-sections under cyclic bending.” J. Constr. Steel Res., 88, 279–288.
Elkady, A., and Lignos, D. (2015). “Analytical investigation of the cyclic behavior and plastic hinge formation in deep wide-flange steel beam-columns.” Bull. Earthquake Eng., 13(4), 1097–1118.
Elkady, A., and Lignos, D. (2016). “Dynamic stability of deep and slender wide-flange steel columns—Full scale experiments.” Proc., Annual Stability Conf., SSRC, Chicago.
Fogarty, J., and El-Tawil, S. (2015). “Collapse resistance of steel columns under combined axial and lateral loading.” J. Struct. Eng., 04015091.
Fogarty, J., Yossef, N., and El-Tawil, S. (2013). “Collapse resistance of locally damaged steel columns.” J. Constr. Steel Res., 82(6), 195–202.
Hypermesh version 11.0 [Computer software]. Altair Engineering, Inc., Troy, MI.
LS-DYNA [Computer software]. Livermore Software Technology Corporation, Livermore, CA.
Newell, J., and Uang, C. (2006). “Cyclic behavior of steel columns with combined high axial load and drift demand.”, Dept. of Structural Engineering, Univ. of California, San Diego.
Uang, C. M., Ozkula, G., and Harris, J. (2015). “Observations from cyclic tests on deep, slender wide-flange structural steel beam–column members.” Proc., Annual Stability Conf., SSRC, Chicago.
Ziemian, R. D. (2010). Guide to stability design criteria for metal structures, 6th Ed., Wiley, Hoboken, NJ.
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©2017 American Society of Civil Engineers.
History
Received: Feb 4, 2016
Accepted: Mar 20, 2017
Published online: Jul 8, 2017
Published in print: Sep 1, 2017
Discussion open until: Dec 8, 2017
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