Elastic Stability of Beam-Columns with Flexural Connections under Various Conservative End Axial Forces
Publication: Journal of Structural Engineering
Volume 123, Issue 9
Abstract
Stability criteria that evaluate the elastic critical axial load of beam-columns with flexural connections under the combination of conservative end axial forces are presented in a classical manner. The end axial loads include gravity loads combined with forces such as those produced by tension cables that always pass through fixed points or forces applied by rigid links. The proposed method follows the same format and classification of beam-columns and frames under gravity loads. The derived equations that can be applied to the stability analysis of beam-columns in structural and mechanical systems with rigid, semirigid, and hinged end connections overcome the limitations of current methods of stability analysis (such as the well-known alignment charts for braced and unbraced columns and frames under gravity loads). Several examples are presented in detail that demonstrate the effects of compressive forces applied by prestressed cables or rigid links combined with gravity loads on the overall stability of frames and the effectiveness of the proposed stability equations.
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References
1.
“Allowable stress design.” (1989). Manual of Steel Construction, 9th Ed., American Institute of Steel Construction.
2.
Aristizabal-Ochoa, J. D.(1994a). “K-factor for columns in any type of construction: nonparadoxical approach.”J. Struct. Engrg., ASCE, 120(4), 1272–1290.
3.
Aristizabal-Ochoa, J. D.(1994b). “Slenderness K-factor for leaning columns.”J. Struct. Engrg., ASCE, 120(10), 2977–2991.
4.
Aristizabal-Ochoa, J. D.(1994c). “Stability of columns under uniform load with semirigid connections.”J. Struct. Engrg., ASCE, 120(11), 3212–3222.
5.
Aristizabal-Ochoa, J. D.(1995). “Story stability and minimum bracing in RC framed structures: general approach.”ACI Struct. J., 92(6), 335–344.
6.
Aristizabal-Ochoa, J. D. (1996). “Braced, partially braced, and unbraced columns: complete set of classical stability equations.”Int. J. Struct. Engrg. and Mech., Taejon, Korea, 4(4).
7.
Aristizabal-Ochoa, J. D. (1997). “Story stability of braced, partially braced and unbraced frames: classical approach.”J. Struct. Engrg., 123(6).
8.
Building code requirements for reinforced concrete and commentary ACI 318-89/318R-89. (1992). American Concrete Institute, Detroit, Mich.
9.
Chen, W. F., and Kishi, N.(1989). “Semirigid steel beam-column connections: data base and modeling.”J. Struct. Engrg., ASCE, 115(1), 105–119.
10.
Chen, W. F., and Lui, E. M. (1991). Stability design of steel frames. CRS Press, Boca Raton, Fla.
11.
Cheong-Siat-Moy, F.(1991). “Column design in gravity-loaded frames.”J. Struct. Engrg., ASCE, 117(5), 1448–1461.
12.
Feodosyev, V. I. (1977). Selected problems and questions in strength of materials. Mir Publishers, Moscow, Russia.
13.
Gerstle, K. H. (1988). “Effects of connections on frames.”Steel beam-to column building connections. W. F. Chen, ed., Elsevier Science Publishers, New York, N.Y., 241–267.
14.
Guide to stability design criteria for metal structures. (1988). 4th Ed., T. V. Galambos, ed., John Wiley & Sons, Inc., New York, N.Y.
15.
“Load & resistance factor design.” (1994). Manual of Steel Construction, 2nd Ed., American Institute of Steel Construction.
16.
Salmon, C. G., and Johnson, J. E. (1980). Steel structures: design and behavior, 2nd Ed., Harper & Row, Publishers, Inc., New York, N.Y.
17.
Timoshenko, S. P., and Gere, J. M. (1961). “Theory of elastic stability.”Engineering societies monographs. McGraw-Hill Inc., New York, N.Y., 55–59.
18.
Xu, L., and Grierson, D. E.(1993). “Computer-automated design of semirigid steel frameworks.”J. Struct. Engrg., 119(6), 1740–1760.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 9 • September 1997
Pages: 1194 - 1200
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Sep 1, 1997
Published in print: Sep 1997
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