Uniaxial Bending of Columns
Publication: Journal of Structural Engineering
Volume 119, Issue 4
Abstract
An alternative technique is presented for the design and analysis of uniaxially loaded, reinforced‐concrete columns. The technique is based on a simple transformation concept in which the components of the cross section are transformed into an equivalent homogeneous elastic material. The modulus of elasticity of concrete as defined by the ACI code is used as the base for transformation. The pertinent elastic properties of the transformed cross section are evaluated and thereafter the classical bending theory is applied. Furthermore, an interaction formula that could be used to assess the performance of uniaxially loaded column is presented. Also, the strength‐reduction factor is reevaluated with reference to the available ductility expressed by the neutral‐axis‐to‐depth ratio. The results obtained using the proposed technique are in total agreement with those obtained using the conventional ACI code approach. A flowchart showing the iterative process is presented.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
“Building code requirements for reinforced concrete.” (1989). ACI318‐89, American Concrete Institute (ACI), Detroit, Mich.
2.
Design handbook in accordance with the strength design method; columns, publication S‐17A, (1978). American Concrete Institute (ACI), Detroit, Mich., Vol. 2.
3.
Harik, I. E., and Gesund, H. (1988). “Flowcharts for biaxial bending in R/C tied columns.” J. Struct. Engrg., ASCE, 114(6), 1230–1249.
4.
Najmi, A. (1986). “Unified stiffness approach for the analysis and design of rectangular reinforced concrete beams at ultimate limit state.” J. Dirasat, Amman, Jordan, 8(10), 39–48.
5.
Nawy, E. G. (1986). Simplified reinforced concrete, 1st Ed., Prentice‐Hall, Inc., Englewood Cliffs, N.J.
6.
Roy, H. E., and Sozen, M. A. (1964). “Ductility of concrete.” Proc., Int. Symp. on the Flexural Mech. of Reinforced Concrete, ASCE, New York, N.Y.
7.
Specification for the design, fabrication and erection of structural steel for buildings. (1978). American Institute of Steel Construction (AISC), Chicago, Ill.
8.
Taylor, R., and Najmi, A. (1980). “Composite reinforced concrete beams in hogging bending.” Proc., Instn. Civ. Engrs., London, England. Part 2, 801–812.
9.
Wang, C. K., and Salmon, D. G. (1985). Reinforced concrete design, 4th Ed., Harper and Row Publishers, New York, N.Y.
10.
Whitney, C. S. (1942). “Elastic theory of reinforced concrete design.” J. Struct. Engrg., ASCE, 107, 251–326.
Information & Authors
Information
Published In
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Nov 7, 1991
Published online: Apr 1, 1993
Published in print: Apr 1993
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.