Plate Element Modeling of Steel Angle Members
Publication: Journal of Structural Engineering
Volume 114, Issue 4
Abstract
Angle members in steel lattice towers are currently individually designed by approximate formulas that take into account geometric and material properties, as well as conditions of eccentricity and restraint at end joints. Full‐scale tests of towers show that current design formulas are not always appropriate and that failures often involve a group of members (subassembly) rather than individual members. An alternate is proposed herein to full‐scale testing for determining the ultimate strength of angle members or subassemblies. It proposes to model angle members by nonlinear plate elements located in the legs of the angles. Such a detailed modeling allows for the occurrence of local buckling, lateral‐torsional buckling, eccentricity of connections, localized plasticity, etc., A plate element appropriate for modeling steel angles is discussed in detail, and several examples are presented to demonstrate the usefulness of the concept.
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References
1.
Allman, D. J. (1984). “A compatible triangular element including vertex rotations for plane elasticity analysis.” Computer Struct., 19(1–2), 1–7.
2.
Cook, R. D. (1981). Concepts and application of finite element analysis. 2nd Ed., John Wiley & Sons, Inc., New York, N.Y.
3.
Crisfield, M. A. (1981). “A fast incremental/iterative solution procedure that handles ‘snap‐through’.” Computer Struct., 13, 55–62.
4.
Levy, S. (1942). “Square plate with clamped edges under normal pressure producing large deflections.” Tech. Note. No. 847, National Advisory Committee for Aeronautics, Washington, D.C.
5.
Murray, D. W., and Wilson, E. L. (1969). “Finite element large deflection analysis of plates.” J. Engrg. Mech. Div., ASCE, 95(1), 143–165.
6.
Murray, D. W., and Wilson, E. L. (1968). “An approximate nonlinear analysis of plates.” Proc. 2nd Conf. Matrix Meth. Struct. Mech., Wright‐Patterson Air Force Base, Dayton, Ohio, 1207–1230.
7.
Riks, E. (1979). “An incremental approach to the solution of snapping and buckling problems.” Int. J. Solids Struct., 15, 529–551.
8.
Shao, C. A. (1986). “Instability of a rectangular thin plate subjected to opposite corner loads,” thesis presented to the University of Wisconsin, at Madison, Wisc., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
9.
Timoshenko, S. P., and Woinowsky‐Krieger, S. (1959). Theory of plates and shells, 2nd Ed., McGraw‐Hill Book Co., Inc., New York, N.Y.
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Copyright © 1988 ASCE.
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Published online: Apr 1, 1988
Published in print: Apr 1988
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