L‐Shaped Column Design for Biaxial Eccentricity
Publication: Journal of Structural Engineering
Volume 109, Issue 8
Abstract
Rational shape for the load contours in L‐shaped columns is proposed using the inverse method of analysis. Determination of the ultimate loads from the appropriate interaction curves derived from the shape of load contours is shown. An alternate and simple method based on the concept of an equivalent square or rectangular column is proposed to determine the theoretical ultimate loads using the interaction diagrams in square or rectangular columns. Theoretical loads computed by the two proposed methods are compared with the test results of 45 columns.
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References
1.
Bresler, B., “Design Criteria for Reinforced Concrete Columns under Axial Load and Biaxial Bending,” Journal of American Concrete Institute, Proceedings, Vol. 57, No. 5, Nov., 1960, pp. 481–490.
2.
Hafeez Khan, T. A., “Investigation of the Strength of the Biaxially Loaded Reinforced Concrete Ell Shaped Columns,” thesis presented to the Indian Institute of Technology, at Kharagpur, India, in 1971, in partial fulfillment of the requirements for the Degree of Doctor of Philosophy.
3.
Pannel, F. N., “Design of Biaxially Loaded Columns by Ultimate Load Methods,” Magazine of Concrete Research, (London), Vol. 12, No. 35, July, 1960, pp. 99–108.
4.
Ramamurthy, L. N., “Investigation of the Ultimate Strength of Square and Rectangular Columns under Biaxially Eccentric Loads (ACI‐SP‐13, Paper No. 12),” Symposium on Reinforced Concrete Columns, American Concrete Institute, Detroit, Mich., 1966, pp. 263–298.
5.
Ramamurthy, L. N., discussion of the paper on “Ultimate Strength Design Charts for Columns with Biaxial Bending,” by D. C. Weber, Journal of the American Concrete Institute, Part II, Proceedings, Vol. 63, June, 1967, pp. 1583–86.
Information & Authors
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Published In
Journal of Structural Engineering
Volume 109 • Issue 8 • August 1983
Pages: 1903 - 1917
Copyright
Copyright © 1983 ASCE.
History
Published online: Aug 1, 1983
Published in print: Aug 1983
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